Crotch Belt Device and Child Safety Seat

Abstract

A crotch belt device and a child safety seat are provided, and the crotch belt device comprises: a limiting member; and a crotch belt having a first end and a second end disposed opposite the first end, the first end of the crotch belt is connected with the limiting member, the second end of the crotch belt is fixed to a seat portion of a child carrier; an adjustment mechanism disposed at the limiting member, and the position where the first end of the crotch belt is connected with the limiting member is adjustable through the adjustment mechanism. The adjustment mechanism of the crotch belt device according to the present disclosure can conveniently adjust the height of the limiting member relative to the child safety seat, to meet the different using requirements of children with different body sizes and different ages, and the adjustment mechanism is disposed at the limiting member of the crotch belt device, thusly the adjustment operation is more convenient. Fig. 2 20 25 20 01 88 10 J an 2 02 5 A B S T R A C T 2 0 2 5 2 0 0 1 8 8 1 0 J a n 2 0 2 5 A c r o t c h b e l t d e v i c e a n d a c h i l d s a f e t y s e a t a r e p r o v i d e d , a n d t h e c r o t c h b e l t d e v i c e c o m p r i s e s : a l i m i t i n g m e m b e r ; a n d a c r o t c h b e l t h a v i n g a f i r s t e n d a n d a s e c o n d e n d d i s p o s e d o p p o s i t e t h e f i r s t e n d , t h e f i r s t e n d o f t h e c r o t c h b e l t i s c o n n e c t e d w i t h t h e l i m i t i n g m e m b e r , t h e s e c o n d e n d o f t h e c r o t c h b e l t i s f i x e d t o a s e a t p o r t i o n o f a c h i l d c a r r i e r ; a n a d j u s t m e n t m e c h a n i s m d i s p o s e d a t t h e l i m i t i n g m e m b e r , a n d t h e p o s i t i o n w h e r e t h e f i r s t e n d o f t h e c r o t c h b e l t i s c o n n e c t e d w i t h t h e l i m i t i n g m e m b e r i s a d j u s t a b l e t h r o u g h t h e a d j u s t m e n t m e c h a n i s m . T h e a d j u s t m e n t m e c h a n i s m o f t h e c r o t c h b e l t d e v i c e a c c o r d i n g t o t h e p r e s e n t d i s c l o s u r e c a n c o n v e n i e n t l y a d j u s t t h e h e i g h t o f t h e l i m i t i n g m e m b e r r e l a t i v e t o t h e c h i l d s a f e t y s e a t , t o m e e t t h e d i f f e r e n t u s i n g r e q u i r e m e n t s o f c h i l d r e n w i t h d i f f e r e n t b o d y s i z e s a n d d i f f e r e n t a g e s , a n d t h e a d j u s t m e n t m e c h a n i s m i s d i s p o s e d a t t h e l i m i t i n g m e m b e r o f t h e c r o t c h b e l t d e v i c e , t h u s l y t h e a d j u s t m e n t o p e r a t i o n i s m o r e c o n v e n i e n t . F i g . 2 A B S T R A C T 2 0 2 5 2 0 0 1 8 8 1 0 J a n 2 0 2 5 12 10 14 22 20 231 1623 232 FIG.2 2 / 26 20 25 20 01 88 10 J an 2 02 5 1 0 J a n 2 0 2 5 2 0 2 5 2 0 0 1 8 8 1 2 1 0 1 4 2 2 2 0 2 3 1 2 3 1 6 2 3 2 F I G . 2 2 / 2 6 1 0 J a n 2 0 2 5 2 0 2 5 2 0 0 1 8 8 1 0 1 4 2 2 2 0 2 3 1 2 3 1 6 2 3 2 F I G . 2 2 / 2 6

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a crotch belt device and a child safety seat provided with the same. BACKGROUND

[0002] A child carrier, for example a child safety seat, is a carrier designed specifically for a child, and the child is usually restrained inside the child carrier while riding, so as to improve the safety of the child while riding.

[0003] A child carrier may usually be provided with a crotch belt device, and usually, the high position of existing crotch belt devices cannot be adjusted, even though the height of some existing crotch belt devices can be adjusted, but its adjustment method is complicated and not easy for the user to adjust, which affects the user's experience. SUMMARY

[0004] In view of this, the object of the present disclosure is to provide a crotch belt device and a child safety seat including the same, where the crotch belt device can make height adjustment in a convenient manner so as to meet the using requirements of users of different sizes or ages.

[0005] To this end, according to one solution of the present disclosure, a crotch belt device is provided, which includes: a limiting member; and a crotch belt having a first end and a second end disposed opposite the first end, the first end of the crotch belt is connected with the limiting member, the second end of the crotch belt is adapted to be fixed to a seat portion of a child carrier; an adjustment mechanism disposed at the limiting member, and the position where the first end of the crotch belt is connected with the limiting member is adjustable through the adjustment mechanism.

[0006] According to an embodiment, the limiting member is provided with: a base portion having opposing first and second surfaces; a protection sheet portion being connected to the base portion and extending outwardly therefrom, the first surface of the base portion 2025200188   10 Jan 2025 faces the protection sheet portion and the second surface of the base portion faces away from the protection sheet portion; and a limiting punch defined between the base portion and the protection sheet portion and used for a safety belt to pass through and limiting the safety belt.

[0007] According to an embodiment, the length of the protection sheet portion in the longitudinal direction is less than the length of the base portion in the longitudinal direction.

[0008] According to an embodiment, the lower end of the limiting member is provided with a connecting portion, the first end of the crotch belt is connected to the limiting member through the connecting portion, and the connecting portion is a penetrating hole located at the lower end of the limiting member.

[0009] According to an embodiment, the crotch belt has two branch belts between the limiting member and the seat portion, and the two branch belts are connected and arranged in an inverted V shape from the limiting member to the seat portion.

[0010] According to an embodiment, the adjustment mechanism is used for adjusting the height of the position where the first end of the crotch belt is connected with the limiting member in the up-down direction.

[0011] According to an embodiment, the adjustment mechanism comprises: a sliding groove disposed at the base portion of the limiting member; a sliding member connected with the first end of the crotch belt and accommodated in the sliding groove, and the sliding member can slide up and down along the sliding groove; a plurality of first locking members being disposed at one of the base portion of the limiting member and the sliding member, and the plurality of first locking members are arranged spaced apart in the up-down direction; a second locking member being disposed at the other one of the base portion of the limiting member and the sliding member, the second locking member is engaged with the corresponding first locking member as the sliding member and the sliding groove slide relative to each other; and an operating member connected to the first locking member or the second locking member, and when the operating member is operated, the first locking member and the second locking member are unlocked, so that the sliding member is allowed to slide in the up-down direction relative to the sliding groove.

[0012] According to an embodiment, one of the first locking member and the second locking member has a locking hole, and the other of the first locking member and the second 2025200188   10 Jan 2025 locking member has a protrusion.

[0013] According to an embodiment, the plurality of first locking members are disposed at the base portion of the limiting member, the second locking member is disposed at the sliding member, the operating member is connected to the second locking member, and the operating member can drive the sliding member to slide in the up-down direction relative to the sliding groove.

[0014] According to an embodiment, the plurality of first locking members are respectively disposed at the left side and the right side of the sliding groove in the up-down direction.

[0015] According to an embodiment, the adjustment mechanism further comprises an elastic member, and the elastic member abuts against the second locking member so as to bias the second locking member to be engaged with the corresponding first locking member.

[0016] According to an embodiment, two said second locking members are provided, and two said operating members are provided to operate the two said second locking members, respectively; the elastic member is abutted between the two second locking members so as to bias the two second locking members to be engaged with the corresponding first locking members.

[0017] According to an embodiment, the sliding member is plate-shaped and is provided with: a crotch belt punch disposed at a lower end of the sliding member, the first end of the crotch belt passing through the crotch belt punch and being connected to the limiting member via the sliding member; and a side opening disposed at at least one of the two sides of the sliding member for the second locking member to pass therethrough.

[0018] According to an embodiment, the sliding member is provided with: a first opening disposed at the surface of the sliding member away from the sliding groove; a second opening disposed at the surface of the sliding member facing the sliding groove; the operating member comprises: an operating end exposed from the first opening; and a connecting end passing through the sliding member and exposed from the second opening.

[0019] According to an embodiment, the connecting end is in an inverted buckle form.

[0020] According to an embodiment, the sliding member is provided with: a first 2025200188   10 Jan 2025 opening disposed at the surface of the sliding member away from the sliding groove; and a second opening disposed at the surface of the sliding member facing the sliding groove, the second locking member is disposed inside the sliding member, and the second locking member comprises: a fixing opening aligned with the first opening and the second opening, and the connecting end of the operating member is exposed from the second opening after passing through the first opening and the fixing opening, respectively; and a protrusion extending from at least one of the two sides of the sliding member.

[0021] According to an embodiment, two first openings are provided on the surface of the sliding member away from the sliding groove, one second opening is provided on the surface of the sliding member facing the sliding groove, and the first opening and the second opening are used for limiting the stroke of the operating member.

[0022] According to an embodiment, the second surface of the base portion is provided with an opening extending in the up-down direction, the operating member enters the sliding groove through the opening, and the left side and the right side of the opening are arranged to protrude oppositely relative to the left side and the right side of the sliding groove so as to limit the sliding member to prevent the sliding member from disengaging from the sliding groove through the opening.

[0023] According to another embodiment, the adjustment mechanism comprises: at least two limiting grooves disposed at one of the first surface and the second surface of the base portion of the limiting member at intervals in the up-down direction; at least two adjustment holes disposed corresponding to the at least two limiting grooves; a communicating groove communicating each of the adjustment holes; and a buckle member mounted in each of the limiting grooves, the first end of the crotch belt is connected to the buckle member, and the crotch belt penetrates out of the adjustment hole.

[0024] According to another embodiment, the buckle member is a frame buckle with a middle cross bar.

[0025] According to another embodiment, the at least two limiting grooves comprise a first limiting groove and a second limiting groove, the first limiting groove is located above the second limiting groove, and the first limiting groove has a side opening.

[0026] According to another embodiment, the protection sheet portion of the limiting 2025200188   10 Jan 2025 member shields at least one part of the first limiting groove.

[0027] According to another embodiment, the second limiting groove is located at the lower end of the limiting member and has a lower opening.

[0028] According to another embodiment, the size of the adjustment hole is smaller than that of the limiting groove.

[0029] According to another embodiment, the adjustment mechanism comprises: at least two adjustment rods disposed at the base portion of the limiting member at intervals in the up-down direction; a connecting buckle connected with the first end of the crotch belt and switchable buckled on one of the at least two adjustment rods.

[0030] According to another embodiment, the adjustment mechanism further comprises: a supporting rod disposed at the base portion of the limiting member, and the first end of the crotch belt bypasses the supporting rod and is connected to the adjustment rod through the connecting buckle.

[0031] According to another embodiment, the connecting buckle has a buckling portion buckled with the adjustment rod, and the cross-section of the buckling portion is U-shaped.

[0032] According to another embodiment, the supporting rod spans the left and the right ends of the base portion of the limiting member and is located above the adjustment rod.

[0033] According to still another solution of the present disclosure, there is also provided a crotch belt device, comprising a limiting member; a crotch belt connected with the limiting member and having a first end and a second end disposed opposite to the first end, the second end is fixed at a seat portion of the child carrier, and the position where the crotch belt is connected with the limiting member is adjustable so as to adjust the height of the limiting member relative to the seat portion.

[0034] According to an embodiment, the crotch belt device further comprises an adjustment mechanism disposed at the limiting member, the first end of the crotch belt is connected with the limiting member through the adjustment mechanism, and the position where the first end of the crotch belt is connected with the limiting member is adjustable through the adjustment mechanism.

[0035] According to an embodiment, the limiting member is connected between the 2025200188   10 Jan 2025 first end and the second end of the crotch belt, and the position where the crotch belt is connected with the limiting member is adjustable through the first end.

[0036] According to an embodiment, the crotch belt is a half-folded crotch belt, two free ends of the half-folded crotch belt are both the second ends of the crotch belt, and the half-folded part is the first end of the crotch belt.

[0037] According to an embodiment, the crotch belt comprises a first belt and a second belt arranged on top of each other, a first end of the first belt and a first end of the second belt are both the second ends of the crotch belt, and the second end of the first belt and the second end of the second belt are arranged on top of each other to form the first end of the crotch belt.

[0038] According to an embodiment, the crotch belt comprises a first belt and a second belt arranged on top of each other, the first end of the first belt and the first end of the second belt are both the second end of the crotch belt, the second end of the first belt is folded back to form a first folded-back section, the second end of the second belt is folded back to form a second folded-back section, and the first folded-back section and the second folded-back section are overlapped and connected to form the first end of the crotch belt.

[0039] According to an embodiment, the first end of the crotch belt is also provided with an insert to thicken the first end.

[0040] According to an embodiment, the crotch belt device is also provided with a stopping portion which is connected with the crotch belt to limit the limit position where the crotch belt connected with the limiting member.

[0041] According to an embodiment, the stopping portion is disposed between the first end of the crotch belt and the limiting member; and / or the stopping portion is disposed between the second end of the crotch belt and the limiting member.

[0042] According to an embodiment, the crotch belt is connected with the limiting member through a connecting member, the connecting member is provided with a penetrating opening, and the second end of the crotch belt is fixed to the seat portion of the child carrier after passing through the penetrating opening.

[0043] According to an embodiment, the connecting member is also provided with anti-slip teeth. 2025200188   10 Jan 2025

[0044] According to an embodiment, the connecting member is a frame buckle with a middle cross bar, and the frame buckle with a middle cross bar and the limiting member are integrally formed.

[0045] The present disclosure also provides a child safety seat, comprising: a backrest portion and a seat portion, the crotch belt device as described above is connected to the child safety seat and a second end of a crotch belt of the crotch belt device is fixed to the seat portion.

[0046] The adjustment mechanism of the crotch belt device according to the present disclosure may conveniently adjust the height of the limiting member relative to the seat portion of the child carrier, so that the adjustment mechanism can meet the different using requirements of children with different body sizes and different ages; furthermore, the adjustment mechanism according to the present disclosure is disposed at the limiting member of the crotch belt device, so that the adjustment operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The accompanying drawings are included herein to provide a further understanding of the present invention, and are incorporated into the specification to constitute a part of the specification. The accompanying drawings illustrate embodiments of the present invention and are used together with the following description to explain principles of the present invention.

[0048] In the drawings:

[0049] FIG. 1 is a schematic view of a child safety seat of the present disclosure with a crotch belt device mounted thereto;

[0050] FIG. 2 is another schematic view of the child safety seat of the present disclosure with a crotch belt device also mounted thereto;

[0051] FIG. 3 is a schematic view of a first embodiment of the crotch belt device of the present disclosure;

[0052] FIGS. 4a and 4b are schematic views of the front and back of a crotch belt device according to the first embodiment of the present disclosure, respectively;

[0053] FIG. 5 is an exploded view showing a detailed structure of the crotch belt 2025200188   10 Jan 2025 device of the first embodiment of the present disclosure;

[0054] FIG. 6 is a schematic view of a base portion and a protection sheet portion of a limiting member of the first embodiment of the present disclosure;

[0055] FIG. 7 is a schematic view of the crotch belt device of the first embodiment of the present disclosure with the base portion and the protection sheet portion hidden and viewed from the back;

[0056] FIG. 8 is a cross-sectional view of a crotch belt device of the first embodiment of the present disclosure;

[0057] FIG. 9a is a schematic view of a second embodiment of the crotch belt device of the present disclosure showing the front side of the limiting member;

[0058] FIG. 9b is a schematic view of the second embodiment of the crotch belt device of the present disclosure showing the back side of the limiting member;

[0059] FIG. 10 is a schematic view of the crotch belt device of the second embodiment of the present disclosure with the crotch belt hidden;

[0060] FIG. 11 is a cross-sectional view of the limiting member of the crotch belt device of the second embodiment of the present disclosure with the protection sheet portion cut off and viewed towards the first surface of the base portion;

[0061] FIG. 12 is a schematic view of a third embodiment of the crotch belt device of the present disclosure showing the front side of the limiting member;

[0062] FIG. 13 is a schematic view of the third embodiment of the crotch belt device of the present disclosure showing the back side of the limiting member;

[0063] FIG. 14 is a schematic view of the front side of the limiting member of the crotch belt device of the third embodiment of the present disclosure;

[0064] FIG. 15 is a partial cross-sectional view of the front side of the limiting member of the crotch belt device of the third embodiment of the present disclosure; where the protection sheet portion is cut off;

[0065] FIG. 16 is an overall perspective view of the crotch belt device of the third embodiment of the present disclosure;

[0066] FIG. 17a is a schematic view of a fourth embodiment of the crotch belt device of the present disclosure showing the front side of the crotch belt device; 2025200188   10 Jan 2025

[0067] FIG. 17b is a schematic view of the fourth embodiment of the crotch belt device of the present disclosure showing the back side of the crotch belt device;

[0068] FIG. 18 is a side cross-sectional view of the fourth embodiment of an adjustment mechanism of the crotch belt device of the present disclosure;

[0069] FIG. 19a is a schematic view of the crotch belt device of the fourth embodiment of the present disclosure with the crotch belt hidden and viewed from the front;

[0070] FIG. 19b is a schematic view of the crotch belt device of the fourth embodiment of the present disclosure with the crotch belt hidden and viewed from the back;

[0071] FIG. 20 is a schematic view of the crotch belt device of a fifth embodiment of the present disclosure;

[0072] FIG. 21 is a schematic view of one embodiment of the crotch belt of the crotch belt device of the fifth embodiment of the present disclosure;

[0073] FIG. 22 is a schematic view of another embodiment of the crotch belt of the crotch belt device of the fifth embodiment of the present disclosure;

[0074] FIG. 23 is a schematic view of a limiting member of the crotch belt device according to the fifth embodiment of the present disclosure showing the front side of the limiting member;

[0075] FIG. 24 is a schematic view of the limiting member of the crotch belt device of the fifth embodiment of the present disclosure showing the back side of the limiting member;

[0076] FIG. 25 is a schematic view of the crotch belt device of the fifth embodiment of the present disclosure showing the limiting member in a higher position; and

[0077] FIG. 26 is another schematic view of the crotch belt device of the fifth embodiment of the present disclosure; this figure shows the limiting member in a lower position. LIST OF REFERENCE NUMERALS: shoulder belt: 1 waist belt: 2 child safety seat: 10 headrest portion 12 backrest portion 14 seat portion 16 2025200188   10 Jan 2025 crotch belt device: 20 limiting member 22 base portion 221 first surface 221a     second surface 221b protection sheet portion 222 connecting portion 223 limiting punch 224 crotch belt 23 first end 231     second end 232 [First embodiment] adjustment mechanism 100 sliding member 110 crotch belt punch 112 side opening 113 first opening 114 second opening 115 second locking member 120 protrusion 121     fixing opening 122 operating member 130 operating end 131 connecting end 132 elastic member 140 sliding groove 150 track 152 first locking member 160 [Second embodiment], [Third embodiment] adjustment mechanism 200 buckle member 220 first limiting groove 250 side opening 251 second limiting groove 260 lower opening 261 communicating groove 270 first adjustment hole 280 2025200188   10 Jan 2025 second adjustment hole 290 [Fourth embodiment] adjustment mechanism 300 connecting buckle 320 penetrating opening 321 buckling portion 322 first adjustment rod 350 second adjustment rod 360 supporting rod 370 first arrow S1 second arrow S2 [Fifth embodiment] crotch belt device 20 limiting member 22 crotch belt 23 first end 231     second end 232 first crotch belt 23a first end 23a1     second end 23a2 first folded-back section 23c1 second crotch belt 23b first end 23b1 second end 23b2 second folded-back section 23c2 insert 235 positioning portion 236 stopping portion 237 connecting member 24 penetrating opening 241     anti-slip teeth 242 DETAILED DESCRIPTION

[0078] Hereinafter, exemplary embodiments will be described in detail with reference to the accompanying drawings. Although the present disclosure is susceptible to various 2025200188   10 Jan 2025 modifications and alternative forms, its specific embodiments are shown by way of example in the accompanying drawings. However, the present disclosure should not be construed as being limited to the embodiments set forth herein, and instead, the present disclosure will cover all modifications, equivalents, and alternatives falling within the spirit and scope of the embodiments.

[0079] In the following description, a child safety seat is exemplified, however, it is to be understood that the crotch belt device according to the invention is also applicable to other types of carriers, such as a child chair, a child swing chair, a child cart, or a wheelchair etc.

[0080] Furthermore, in the case of a child safety seat, which may be mounted into a vehicle, a child may be restrained by a safety belt on the vehicle or a safety belt of the child safety seat. The crotch belt device provided by the present disclosure may adjust the effective length of the crotch belt, and can be connected to the safety belt on a vehicle to limit the height of the safety belt on the vehicle. As shown in FIG. 1, the crotch belt device 20 of the present disclosure is applied to a Booster child safety seat, and the dashed lines in FIG. 1 show the safety belt on the vehicle, including a shoulder belt 1 and a waist belt 2 on the vehicle. The waist belt 2 on the vehicle can be penetrated through the crotch belt device 20 for limiting. Of course, the crotch belt device 20 may also be applied to other types of child carriers; the crotch belt device 20 may also be applied in a safety belt of a Harness child safety seat (for example, a five-point Safety belt or a three-point Safety belt) or other carrier such that the crotch belt device 20 is connected with a shoulder belt or a waist belt on the Harness child safety seat or other carrier for adjusting the crotch belt length.

[0081] The following description and drawings will be made by taking a Booster child safety seat as an example, and by taking a crotch belt device in cooperation with a waist belt 2 on a vehicle as an example.

[0082] As shown in FIG. 1 and 2, in which FIG. 1 is a schematic view showing a child safety seat 10 of the present disclosure, and FIG. 2 is another schematic view showing the child safety seat 10 of the present disclosure. The child safety seat 10 is provided with a crotch belt device 20. The crotch belt device 20 according to the present disclosure includes a limiting member 22 and a crotch belt 23, the waist belt 2 of the vehicle may pass through the 2025200188   10 Jan 2025 limiting member 22 of the crotch belt device 20 for limiting, and the shoulder belt 1 of the vehicle passes through the backrest portion 14 and the headrest portion 12, to restrain the body of a child resting against the backrest portion 14 of the child safety seat 10. The limiting member 22 according to the present disclosure may be a protection-sheet-type limiting member (as shown in FIG. 1 and 2) or a buckle-type limiting member (not shown) which is suitable for use in a safety belt of a Harness child safety seat, or a combination of a protection-sheet-type and buckle-type limiting member, so that it can be switched from a mode of being applied to a safety belt of a Booster safety seat to a mode of being applied to a safety belt of a Harness safety seat. The crotch belt 23 according to the present disclosure may for example be in the form of a webbing strap.

[0083] The crotch belt 23 comprises opposite first and second ends 231, 232, the first end 231 is connected to the limiting member 22, and the second end 232 is fixed to the seat portion 16 of the child safety seat 10, for example by a frame buckle with a middle cross bar or bowknot. The second end 232 of the crotch belt 23 is detachable from the seat portion 16 to remove the crotch belt device 20 from the child carrier. The crotch belt 23 shown in FIGS. 1 and 2 has two branch belts between the limiting member 22 and the seat portion 16, the two branch belts are connected and arranged in an inverted V-shape from the limiting member 22 toward the seat portion 16, but are not limited thereto. According to actual needs, the crotch belt 23 can also be provided with only one or more than two branch belts. As shown in FIGS. 1 and 2, the seat portion 16 has an elongated hole through which the second end 232 of the crotch belt 23 passes, the elongated hole is substantially perpendicular to the width direction (i.e., the left-right direction) of the seat portion. The crotch belt 23 is twisted between the limiting member 22 and the seat portion 16, with the wide side of the crotch belt 23 being parallel to the width direction of the seat portion 16 near the first end 231 and the wide side of the crotch belt 23 being perpendicular to the width direction of the seat portion 16 near the second end 232.

[0084] The crotch belt device 20 according to the present disclosure further comprises an adjustment mechanism provided at the limiting member 22. By the adjustment mechanism, the position where the first end 231 of the crotch belt 23 is connected with the limiting member 22 can be adjusted, thereby the height of the limiting member 22 relative to the child 2025200188   10 Jan 2025 safety seat 10 can be adjusted. In this way, even if a smaller or younger child rides on the child safety seat 10, the effective length of the crotch belt 23 can be adjusted by the adjustment mechanism, so that the position of the waist belt 2 can be adjusted, thus improving the safety of the child's ride, and the applicable age or body size of children is wider.

[0085] Specifically, a first embodiment of the adjustment mechanism of the crotch belt device 20 according to the present disclosure will be explained below with reference to FIGS. 3, 4a, 4b, 5, where FIG. 3 is a schematic view of the first embodiment of the crotch belt device of the present disclosure; FIGS. 4a and 4b are schematic views of the front and back sides of the crotch belt device of the first embodiment of the present disclosure respectively; FIG. 5 is an exploded view showing a detailed structure of the crotch belt device of the first embodiment of the present disclosure. For ease of explanation, in the following description the front side of the crotch belt device 20 is the surface thereof facing the outside of the child safety seat, while the back side of the crotch belt device 20 is the surface thereof facing the backrest portion 14 of the child safety seat; likewise, the front side of the limiting member 22 is the surface thereof facing the outside of the child safety seat, and the back side of the limiting member 22 is the surface thereof facing the backrest portion 14 of the child safety seat. In both FIGS. 1 and 2, the front sides of the crotch belt device 20 and the limiting member 22 are shown.

[0086] Referring to FIG. 6 in combination, FIG. 6 is a schematic diagram of a base portion and a protection sheet portion of the limiting member of the first embodiment of the present disclosure, the limiting member 22 includes a base portion 221 and a protection sheet portion 222, the base portion 221 includes a first surface 221a and a second surface 221b opposite to each other, the first surface 221a of the base portion 221 faces the protection sheet portion 222, and the second surface 221b of the base portion 221 is away from the protection sheet portion 222. A limiting punch 224 is defined between the base portion 221 and the protection sheet portion 222. In this embodiment, when the crotch belt device 20 is mounted on the child safety seat, the second surface 221b of the base portion 221 faces the backrest portion 14 of the child safety seat 10, while the protection sheet portion 222 extends from the base portion 221 and faces the outside of the child safety seat 10 (as shown in FIGS. 1 and 2); 2025200188   10 Jan 2025 in other embodiments, it may be replaced that the protection sheet portion 222 extends from the base portion 221 and faces the backrest portion 14 of the child safety seat 10, and the second surface 221b of the base portion 221 faces the outside of the child safety seat 10. The waist belt 2 of the vehicle is passed through the limiting punch 224 so that the waist belt 2 is limited by the crotch belt device 20 to avoid the waist belt 2 from moving to an excessively high position. According to the embodiment shown in FIG. 6, the longitudinal length of the protection sheet portion 222 is less than the longitudinal length of the base portion 221. The lower end of the limiting member 22 is also provided with a connecting portion 223, through which the first end of the crotch belt 23 is connected to the limiting member 22. The connecting portion 223 shown in FIG. 6 is in the form of a penetrating hole, through which the first end of the crotch belt 23 extends into the limiting member 22.

[0087] Referring to FIG. 5 in combination, the adjustment mechanism 100 according to the first embodiment includes a sliding groove 150, a sliding member 110, a first locking member 160, a second locking member 120, and an operating member 130. The sliding groove 150 is disposed at a base portion 221 of the limiting member 22; the sliding member 110 is connected with the first end 231 of the crotch belt 23, the sliding member 110 is accommodated in the sliding groove 150, and the sliding member 110 is able to slide up and down along the sliding groove 150. As shown in FIGS. 5 and 6, the second surface 221b of the base portion 221 is provided with an opening extending in the up-down direction, through which the operating member 130 enters the sliding groove 150, and left and right sides of the opening are oppositely protruded relative to left and right sides of the sliding groove 150 to limit the sliding member 110 and prevent the sliding member 110 from being separated from the sliding groove 150. In other words, the left and right sides of the opening are protruded toward each other relative to the left and right sides of the sliding groove 150 (the left and right width of the opening is smaller than the left and right width of the sliding groove), so that the left and right sides of the sliding groove 150 may include a track 152, respectively, and the two sides of the sliding member 110 can be partially accommodated in the track 152. The sliding member 110 slides up and down along the track 152 to avoid the sliding member 110 from falling. According to the embodiment shown in FIG. 5, a plurality of first locking members 160 are disposed at the base portion 221 of the limiting member 22 and are 2025200188   10 Jan 2025 arranged at intervals along the up-down direction, and the second locking member 120 is disposed at the sliding member 110. However, it is not limited thereto. In other embodiments, the plurality of first locking members 160 may also be disposed at the sliding member 110, and the second locking members 120 are disposed at the base portion 221 of the limiting member 22, as long as the second locking members 120 engage with the corresponding first locking members 160 as the sliding member 110 and the sliding groove 150 slide relative to each other.

[0088] The operating member 130 is connected to the first locking member 160 or the second locking member 120, and when the operating member 130 is operated, the first locking member 160 and the second locking member 120 are unlocked to allow the sliding member 110 to slide in the up-down direction relative to the sliding groove 150.

[0089] In the embodiment shown in FIG. 5, the plurality of first locking members 160 have locking holes, and the plurality of first locking members 160 are disposed at the base portion 221 of the limiting member 22; the second locking member 120 includes a protrusion 121, the second locking member 120 is disposed at the sliding member 110, and the operating member 130 is connected to the second locking member 120, so that the operating member 130 drives the sliding member 110 to slide in the up-down direction relative to the sliding groove 150. However, it is not limited thereto. It is also possible that the first locking member 160 has a protrusion, while the second locking member 120 has a locking hole.

[0090] The sliding member 110 may be, for example, plate-shaped, and may be provided with a crotch belt punch 112, a side opening 113, a first opening 114, and a second opening 115 (the second opening 115 is shown in FIG. 7). The crotch belt punch 112 is disposed at a lower end of the sliding member 110. A first end 231 of the crotch belt 23 is passed through the crotch belt punch 112, so that the crotch belt 23 can be connected to the limiting member 22 by the sliding member 110, and the crotch belt 23 can be slid up and down along the sliding groove 150 along with the sliding member 110. The first opening 114 of the sliding member 110 is disposed at a surface of the sliding member 110 away from the sliding groove 150 (in other words, the first opening 114 of the sliding member 110 is disposed at a surface of the sliding member 110 away from the protection sheet portion 222), and the second opening 115 of the sliding member 110 is disposed at a surface of the sliding 2025200188   10 Jan 2025 member 110 facing the sliding groove 150 (in other words, the second opening 115 of the sliding member 110 is disposed at a surface of the sliding member 110 close to the protection sheet portion 222). The second locking member 120 can be disposed in the sliding member 110, the second locking member 120 may further include a fixing opening 122 in addition to the protrusion 121, and the protrusion 121 may extend outward from the side opening 113 of the sliding member 110 to engage with the first locking members 160 distributed at both sides of the sliding groove 150. The fixing opening 122 is aligned with the first opening 114 and the second opening 115 of the sliding member 110 to facilitate the insertion therethrough of the operating member 130, which will be described below.

[0091] The operating member 130 comprises an operating end 131 and a connecting end 132, as shown in FIGS. 4b and 7, in which FIG. 7 is a schematic view of the crotch belt device of the first embodiment of the present disclosure with the base portion and the protection sheet portion hidden and viewed from the back. The operating end 131 of the operating member 130 is exposed from the first opening 114 of the sliding member 110, and the connecting end 132 of the operating member 130 is exposed from the second opening 115 of the sliding member 110 after passing through the first opening 114 of the sliding member 110 and the fixing opening 122 of the second locking member 120 in sequence. According to the embodiment shown in FIG. 5, the connecting end 132 is in an inverted buckle form.

[0092] The adjustment mechanism 100 further includes an elastic member 140, and the elastic member 140 abuts against the second locking member 120 to press the second locking member 120 such that the protrusion 121 of the second locking member 120 is biased to engage with the corresponding first locking member 160.

[0093] In the embodiment shown in FIG. 5, two second locking members 120 are provided, and correspondingly, two operating members 130 are also provided to operate the two second locking members 120, respectively. Two side openings 113 and two first openings 114 of the sliding member 110 are also provided. The elastic member 140 abuts against between the two second locking members 120 to bias the two second locking members 120 to be engaged with the corresponding first locking members 160. However, it is not limited thereto. Only one sliding member 110 and one operating member 130 are provided. The number of the plurality of first locking members 160 may be set according to the requirement 2025200188   10 Jan 2025 of the different adjusting positions. The first locking member 160 may be disposed at both left and right sides of the sliding groove 150 or only at one side or other positions of the sliding groove 150.

[0094] Next, the adjustment process of the adjustment mechanism 100 according to the first embodiment will be described with reference to FIG. 8, in which FIG. 8 is a cross-sectional view of the crotch belt device according to the first embodiment of the present disclosure. As shown in FIG. 8, at this time, the protrusion 121 of the second locking member 120 engages the first locking member 160 located at the lowest end of the sliding groove 150, and the sliding member 110 is located at a lower-end position in the sliding groove 150. At this time, the entire crotch belt device 20 is at a higher position with respect to the child safety seat 10, and the crotch belt device 20 at this position is suitable for larger or older children. When the operating end 131 of the operating member 130 is pressed in the direction of the first arrow S1, the elastic member 140 will be squeezed, such that the protrusion 121 of the second locking member 120 to disengage from the first locking member 160. The operating end 131 of the operating member 130 is further operated in the direction of the second arrow S2 so that the sliding member 110, together with the second locking member 120 and the first end 231 of the crotch belt 23, slides in the direction of the second arrow S2 until the appropriate height is reached, then the operating end 131 of the operating member 130 is released. At this point, the protrusion 121 of the second locking member 120 is again extended out to engage the corresponding first locking member 160 under the elastic force of the elastic member 140. At this point, the entire crotch belt device 20 is located at a lower position relative to the child safety seat 10, and the crotch belt device 20 at this position is suitable for use by smaller or younger children.

[0095] The two first openings 114 and the one second opening 115 provided on the sliding member 110 may be used to limit the stroke of the operation member 130 in addition to mounting the operation member 130. For example, the two first openings 114 limit the stroke of the operation member 130 when the operation member 130 presses the elastic member 140 to move along the first arrow S1; and since the connecting end 132 of the operating member 130 passes through the second opening 115, the second opening 115 may limit the stroke of the operating member 130 in the direction opposite to the direction of the 2025200188   10 Jan 2025 first arrow S1 by the elastic force of the elastic member 140. Of course, two second openings 115 may also be provided, while one first opening 114 may be provided, but are not limited thereto.

[0096] The adjustment mechanism 100 based on this embodiment is provided to the limiting member 22 of the crotch belt device 20, so the adjustment operation is easier.

[0097] An adjustment mechanism 200 according to a second embodiment will be described below with reference to FIGS. 9a, 9b, 10 and 11, the same parts of the second embodiment as the first embodiment will not be described again. Where FIG. 9a is a schematic view of a second embodiment of the crotch belt device of the present disclosure showing the front side of the limiting member; FIG. 9b is a schematic view of the second embodiment of the crotch belt device of the present disclosure showing the back side of the limiting member; FIG. 10 is a schematic view of the crotch belt device of the second embodiment of the present disclosure with the crotch belt hidden; FIG. 11 is a cross-sectional view of the limiting member of the crotch belt device of the second embodiment of the present disclosure with the protection sheet portion cut off and viewed towards the first surface of the base portion; the adjustment mechanism 200 of the second embodiment comprises at least two limiting grooves, and in the embodiment of FIGS. 9a and 9b comprises a first limiting groove 250 and a second limiting groove 260, the first limiting groove 250 is located above the second limiting groove 260. In this embodiment, the second limiting groove 260 is located at the lower end of the limiting member 22, but is not limited thereto, and the number of the limiting grooves may be set according to the requirement for the different adjusting position. As shown in FIG. 9a, the first limiting groove 250 and the second limiting groove 260 are disposed at the first surface 221a of the base portion 221 of the limiting member 22, and the protection sheet portion 222 of the limiting member 22 covers at least one part of the first limiting groove 250. As shown in FIG. 9b, the base portion 221 of the limiting member 22 is also provided with a first adjustment hole 280 and a second adjustment hole 290, the first adjustment hole 280 and the second adjustment hole 290 penetrate through the first surface 221a and the second surface 221b of the base portion 221, the first adjustment hole 280 corresponds to the first limiting groove 250 in position, the second adjustment hole 290 corresponds to the second limiting groove 260 in position. The 2025200188   10 Jan 2025 sizes of the first limiting groove 250 and the second limiting groove 260 are larger than those of the first adjustment hole 280 and the second adjustment hole 290 respectively. The buckle member 220 can be mounted in the first limiting groove 250 and the second limiting groove 260, and the crotch belt 23 extends from the second surface 221b of the base portion 221. The buckle member 220 may be frame buckle with a middle cross bar, but is not limited thereto.

[0098] The adjustment mechanism 200 is also provided with a communicating groove 270, and the communicating groove 270 communicates with the first adjustment hole 280 and the second adjustment hole 290. Since the first adjustment hole 280 corresponds to the first limiting groove 250 in position, the second adjustment hole 290 corresponds to the second limiting groove 260 in position, the first adjustment hole 280 communicates with the first limiting groove 250, and the second adjustment hole 290 communicates with the second limiting groove 260, the communicating groove 270 also communicates with the first limiting groove 250 and the second limiting groove 260.

[0099] As shown in FIG. 9b, the first end 231 of the crotch belt 23 is connected to the buckle member 220, the buckle member 220 is mounted in, for example, the second limiting groove 260, and the crotch belt 23 is passed out of the second adjustment hole 290. In the position shown in FIG. 9b, the buckle member 220, along with the crotch belt 23 is located at the lower end of the limiting member 22. At this point, the entire crotch belt device 20 is at a higher position with respect to the child safety seat 10, the crotch belt device 20 at this position is suitable for children with larger body size or older age. When the position of the crotch belt device 20 needs to be adjusted, if the buckle member 220 is originally located in the second limiting groove 260 and the crotch belt 23 needs to be adjusted to be shortened, the buckle member 220 may be first removed from the second limiting groove 260.The buckle member 220 is rotated and adjusted (or the crotch belt 23 can be directly adjusted), such that crotch belt 23 adapts to the extending direction of the communicating hole 270. The crotch belt 23 can be driven by the buckle member 220 to the first adjustment hole 280 through the communicating hole 270 (or the crotch belt 23 can be directly pulled to move to the first adjustment hole 280), and then after the position of the buckle member 220 is rotated and adjusted, the crotch belt 23 is tightened, and the buckle member 220 is connected to the first limiting groove 250. At this point, the entire crotch belt device 20 is located at a lower 2025200188   10 Jan 2025 position relative to the child safety seat 10, and the crotch belt device 20 at this position is suitable for children with smaller sizes or younger ages.

[00100] In order to facilitate the buckle member 220 to be removed from or engaged with the first limiting groove 250 and the second limiting groove 260. As shown in FIG. 11, the first limiting groove 250 has a side opening 251 for a user to operate the buckle member 220 located in the first limiting groove 250 at the side opening 251, so as to further improve the operation convenience, especially for the case where the protection sheet portion 222 obscures the first limiting groove 250. The second limiting groove 260 has a lower opening 261, so that a user can operate the buckle member 220 located in the first limiting groove 250 at the lower opening 261, and the operation convenience is further improved.

[00101] A third embodiment of the crotch belt device 20 is described next with reference to FIGS. 12-16, in which FIG. 12 is a schematic view of a third embodiment of the crotch belt device of the present disclosure showing the front side of the limiting member; FIG. 13 is a schematic view of the third embodiment of the crotch belt device of the present disclosure showing the back side of the limiting member; FIG. 14 is a schematic view of the front side of the limiting member of a crotch belt device of the third embodiment of the present disclosure; FIG. 15 is a partial cross-sectional view of the front side of the limiting member of the crotch belt device of the third embodiment of the present disclosure; where the protection sheet portion is cut off; and FIG. 16 is an overall perspective view of the crotch belt device of the third embodiment of the present disclosure. The adjustment mechanism of the third embodiment has substantially the same structure as that of the adjustment mechanism of the second embodiment, except that in order to facilitate the removal and engagement operation of the buckle member 220, in the third embodiment, a first limiting groove 250 and a second limiting groove 260 are disposed at the second surface 221b of the base portion 221 of the limiting member 22, as shown in FIG. 13. In this way, when adjusting the connecting position of the crotch belt 23, the buckle member 220 may be removed from the second surface 221b of the base portion 221 of the limiting member 22, and the buckle member 220 can be engaged again into the corresponding limiting groove from the second surface 221b when the buckle member 220 is adjusted to the proper position. Since the second surface 221b of the base portion 221 of the limiting member 22 is not blocked by the 2025200188   10 Jan 2025 protection sheet portion 222, the above adjustment operation is more convenient.

[00102] Furthermore, referring to FIG. 16, the lower end of the base portion 221 of the limiting member 22 is provided with a connecting portion 223, and the connecting portion 223 is in the form of a penetrating hole and communicates with the second adjustment hole 290 for the crotch belt 23 to pass through. As shown in FIGS. 14 and 16, the lower end of the base portion 221 is thickened so that the lower end of the base portion 221 forms a connecting portion 223 in the form of a penetrating hole, and the connecting portion 223 may be, for example, a rectangular through hole to limit movement of the crotch belt 23, but is not limited thereto.

[00103] The adjustment mechanism 200 according to this embodiment may also conveniently adjust the height position of the limiting member 22, so as to provide the corresponding height position of the waist belt for children of different body sizes and ages, thereby improving the safety.

[00104] An adjustment mechanism 300 according to a fourth embodiment is described next with reference to FIGS. 17a, 17b, 18, where FIG. 17a is a schematic view of a fourth embodiment of the crotch belt device of the present disclosure showing the front side of the crotch belt device; FIG. 17b is a schematic view of the fourth embodiment of the crotch belt device of the present disclosure showing the back side of the crotch belt device; FIG. 18 is a side cross-sectional view of the fourth embodiment of an adjustment mechanism of the crotch belt device of the present disclosure. The adjustment mechanism 300 of the fourth embodiment is disposed at the second surface 221b of the base portion 221 of the limiting member 22, and includes a support rod 370, a first adjustment rod 350 and a second adjustment rod 360. Two adjustment rods are shown in FIGS. 17b and 18, but not limited thereto, an appropriate number of adjustment rods may be set according to the requirement of the different adjusting position. The first adjustment rod 350 is disposed at an upper position of the base portion 221 of the limiting member 22, the second adjustment rod 360 is disposed at a lower position of the base portion 221 of the limiting member 22. The supporting rod 270 is disposed at the base portion 221 of the limiting member 22 and above the first adjustment rod 350. The adjustment mechanism 300 further comprises a connecting buckle 320, as shown in FIG. 18, the first end 231 of the crotch belt 23 is connected to the connecting buckle 2025200188   10 Jan 2025 320. The crotch belt 23 is engaged with a second adjustment rod 360 disposed at a lower portion of the base portion 221 of the limiting member 22 by the connecting buckle 320 after bypassing the supporting rod 270 disposed at an upper portion of the base portion 221 of the limiting member 22.

[00105] According to another embodiment, the supporting rod 270 may be omitted and the first end 231 of the crotch belt 23 may be directly buckled with different adjustment rods.

[00106] Referring again to FIGS. 19a and 19b, in which FIG. 19a is a schematic view of the crotch belt device of the fourth embodiment of the present disclosure with the crotch belt hidden and viewed from the front; and FIG. 19b is a schematic view of the crotch belt device of the fourth embodiment of the present disclosure with the crotch belt hidden and viewed from the back. In this embodiment, the connecting portion 223 of the limiting member 22 is in the form of an outlet, through which the crotch belt 23 enters the adjustment mechanism 300, and after bypassing upwardly the supporting rod 370, the crotch belt 23 may selectively engage the first adjustment rod 350 or the second adjustment rod 360 via the connecting buckle 320. As shown in FIGS. 18 and 19b, the connecting buckle 320 includes a penetrating opening 321, to which the first end 231 of the crotch belt 23 may be connected. Furthermore, the connecting buckle 320 further includes a buckling portion 322, according to this embodiment, the section of the buckling portion 322 is U-shaped to better snap the first adjustment rod 350 or the second adjustment rod 360.

[00107] In the embodiment shown in FIG. 19b, the supporting rod 370 spans both left and right ends of the base portion 221 of the limiting member 22, i.e., the supporting rod 370 is connected with both left and right ends of the base portion 221, and the first adjustment rod 350 and the second adjustment rod 360 extend from only the left end or the right end of the base portion 221. But not limited thereto, and other connection forms are also possible.

[00108] Based on the adjustment mechanism 300 of the fourth embodiment, as shown in FIG. 18, the connecting buckle 320 engages the second adjustment rod 360, and since the crotch belt 23 bypasses the supporting rod 370, the entire crotch belt device 20 is, at this time, disposed at a lower position with respect to the child safety seat 10, and the crotch belt device 20 at this position is suitable for the smaller or younger children. When the position of the crotch belt device 20 needs to be adjusted, the connecting buckle 320 is removed from the 2025200188   10 Jan 2025 second adjustment rod 360 and moved upwards to engage the first adjustment rod 350. At this point, the crotch belt 23 extends further outwards from the connecting portion 223, and the entire crotch belt device 20 is at a higher position with respect to the child safety seat 10, and the crotch belt device 20 at this position is suitable for larger or older children.

[00109] The adjustment mechanism of this embodiment may also conveniently adjust the height of the limiting member 22 relative to the child safety seat to meet different requirements of children with different body sizes and ages, thereby providing safety protection.

[00110] In each of the above embodiments, a part of the crotch belt 23 (hereinafter referred to as first extension belt) may be located between the limiting member 22 and the seat portion of the child carrier, which part determines the height of the limiting member 22 relative to the seat portion of the child carrier; another part of the crotch belt 23 (hereinafter referred to as second extension belt) may be connected to the limiting member 22 and is located inside the limiting member 22. By adjusting the position where the first end 231 of the crotch belt 23 is connected with the limiting member 22 by the adjustment mechanism, the first extension belt and the second extension belt are translated with each other, which can adjust whether the material of the second extension belt of the crotch belt 23 is increased or decreased, thereby controlling whether the material of the first extension belt is decreased or increased, and further achieving the purpose of adjusting the effective length of the crotch belt 23 and adjusting the height of the limiting member 22 relative to the seat portion of the child carrier.

[00111] In each of the above embodiments, the adjustment mechanism is used for adjusting the height in the up-down direction of the position where the first end 231 of the crotch belt 23 is connected with the limiting member 22.

[00112] Crotch belt device 20 according to a fifth embodiment of the present disclosure is next described with reference to FIG. 20. FIG. 20 is a schematic view of the crotch belt device 20 of a fifth embodiment of the present disclosure. As shown in the drawing, the crotch belt 23 connected with the limiting member 22 has a first end 231 and a second end 232 disposed opposite the first end 231, the second end 232 of the crotch belt 23 is a fixed end and fixed to the seat portion 16 of the child safety seat 10, and the limiting 2025200188   10 Jan 2025 member 22 is (movably) connected between the first end 231 and the second end 232 of the crotch belt 23. The position where the crotch belt 23 is connected with the limiting member 22 can be adjusted by the first end 231 of the crotch belt 23.

[00113] As shown in FIG. 21, which is a schematic view of an embodiment of the crotch belt 23 of the crotch belt device 20 of a fifth embodiment of the present disclosure. The crotch belt 23 in this embodiment is a half-folded crotch belt 23, two free ends of the half-folded crotch belt 23 are both the second ends 232 of the crotch belt 23. The two second ends 232 of the crotch belt 23 are fixed to the seat portion 16 by a mechanism such as a frame buckle with a middle cross bar or bowknot. The half-folded part of the crotch belt 23 after half-folding is the first end 231 of the crotch belt 23, and the first end 231 is an adjustment end, by which the position where the crotch belt 23 is connected with the limiting member 22 may be adjusted. Furthermore, as shown in FIG. 21, an insert 235 may be connected to the half-folded part of the crotch belt 23 so that the first end 231 of the crotch belt 23 may be thickened to avoid the first end 231 of the crotch belt 23 from disengaging form the limiting member 22. The insert 235 may be made of a webbing strap, or may be plastic member, sheet metal, etc. Further, a positioning portion 236 may be provided to fix the insert 235 and the half-folded part of the crotch belt 23. The positioning portion 236 may be, for example, a sewing thread or an adhesive, and the positioning portion 236 may be provided at one or more positions as needed.

[00114] Furthermore, as shown in FIG. 21, the crotch belt device 20 is also provided with a stopping portion 237, the stopping portion 237 is connected with the crotch belt 23. The stopping portion 237 shown in the drawing is between one of the second ends 232 of the crotch belt 23 and the position where the crotch belt 23 is connected with the limiting member 22, and the stopping portion 237 may define the limit position where the crotch belt 23 is connected with the limiting member 22, i.e. the lowest position of the limiting member 22. The position of the stopping portion 237 is not limited to this, and it is also possible to provide the stopping portion 237 between the two second ends 232 of the crotch belt 23 and the position where the crotch belt 23 is connected with the limiting member 22, in which case the stopping portions 237 need to be aligned. Of course, the stopping portion 237 may be disposed between the first end 231 of the crotch belt 23 and the limiting member 22, and a 2025200188   10 Jan 2025 plurality of stopping portions 237 may be disposed between the first end 231 of the crotch belt 23 and the limiting member 22 and between the second end 232 of the crotch belt 23 and the limiting member 22.

[00115] FIG. 22 shows another embodiment of the crotch belt 23 of the crotch belt device 20 of the fifth embodiment of the present disclosure. As shown in FIG. 22, the crotch belt 23 comprises a first belt 23a and a second belt 23b arranged on top of each other, and a first end 23a1 of the first belt 23a and a first end 23b1 of the second belt 23b are both the second ends 232 of the crotch belt 23, i.e. the fixed end of the crotch belt 23. As shown in FIG. 22, the second end 23a2 of the first belt 23a is folded back to form a first folded-back section 23c1, the second end 23b2 of the second belt 23b is folded back to form a second folded-back section 23c2, and the first folded-back section 23c1 and the second folded-back section 23c2 are overlapped and connected to form the first end 232 of the crotch belt 23, i.e. the adjustable end of the crotch belt 23. Of course, it is not limited thereto, the second end 23a2 of the first belt 23a and the second end 23b2 of the second belt 23b may be directly connected to one another to form the first end 232 of the crotch belt 23.

[00116] Although not shown in the drawings, in the embodiment shown in FIG. 22 and in the embodiment that the second end 23a2 of the first belt 23a and the second end 23b2 of the second belt 23b are overlapped and connected directly on top of each other to form the first end 231 of the crotch belt 23, an insert 235 may also be disposed at the first end 231 of the crotch belt 23 to form a thickened first end 231. Further, a positioning portion 236 may also be provided to fix the insert 235, the second end 23a2 of the first belt 23a, and the second end 23b2 of the second belt 23b; likewise, a stopping portion 237 may be disposed between the second end 232 of the crotch belt 23 and the limiting member 22 to define the limit position where the crotch belt 23 is connected with the limiting member 22.

[00117] Next, a specific structure of the limiting member 22 according to the present disclosure will be described with reference to FIGS. 23 and 24, in which FIG. 23 is a schematic view of a limiting member of the crotch belt device of the fifth embodiment of the present disclosure showing the front side of the limiting member, and FIG. 24 is a schematic view of the limiting member of the crotch belt device of the fifth embodiment of the present disclosure showing the back side of the limiting member. The limiting member 22 of this 2025200188   10 Jan 2025 embodiment also includes a base portion 221 and a protection sheet portion 222. Based on the situation shown in FIGS. 23 and 24, the connecting member 24 and the lower end of the limiting member 22 are integrally formed and connected to the base portion 221, but are not limited thereto. The connecting member 24 and the limiting member 22 may be connected to each other by other means. The crotch belt 23 is connected with the limiting member 22 by a connecting member 24, the connecting member 24 is provided with a penetrating opening 241, and the second end 232 of the crotch belt 23 is fixed to the seat portion 16 of the child safety seat 10 after passing through the penetrating opening 241. According to one of the embodiments, the connecting member 24 is a frame buckle with a middle cross bar, and has two penetrating openings 241 (upper penetrating opening and lower penetrating opening), and the second end 232 of the crotch belt 23 is fixed to the seat portion 16 after sequentially passing through the two through openings 241. The connecting member 24 is also provided with anti-slip teeth 242 to increase the friction between the crotch belt 23 and the connecting member 24 to avoid the crotch belt 23 from inadvertently sliding. The anti-slip teeth can be disposed at the surface of the rod body between the upper penetrating opening 241 and lower penetrating opening 241, and can also be disposed at the edge of at least one of the two penetrating openings 241.

[00118] It should be noted that in the embodiment shown in FIG. 20 to 26, the crotch belt 23 has two second ends 232 fixed at two positions on the seat portion 16 of the child carrier, and the two branch belts of the crotch belt 23 are arranged between the limiting member 22 and the seat portion 16 and in an inverted V shape from the limiting member 22 to the seat portion 16. At least two layers of the crotch belt are simultaneously passed through the penetrating opening 241. However, it is not limited thereto. In other embodiments, the crotch belt 23 may be only one or more than two branch belts according to actual needs; for example, the two second ends 232 of the crotch belt 23 may be fixed to the seat portion 16 at the same location without being connected to the seat portion 16 at two locations, or the crotch belt 23 may have only one second end 232 connected to the seat portion 16.

[00119] It should be noted that the stopping portion 237 may be made of a webbing strap, and may be formed as a webbing strap knot (for example, a part of one webbing strap is stacked and sewn together to be fixed as the limiting member 237, and the other part of the 2025200188   10 Jan 2025 webbing strap forms at least a part of the crotch belt 23; or the crotch belt 23 and the limiting member 237 are formed by at least two webbing straps which are separated and connected by a sewing thread), or the limiting member 237 may be made of a plastic member, a metal sheet etc. and connected to the crotch belt 23 by a sewing thread, an adhesive etc.

[00120] Next, the adjustment process of the crotch belt device 20 according to the fifth embodiment will be described with reference to FIGS. 25 and 26, in which FIG. 25 is a schematic view of the crotch belt device 20 of the fifth embodiment of the present disclosure showing the limiting member 22 at a higher position, at this point, the first end 231 of the crotch belt 23 is pulled out to a shorter length; and FIG. 26 is another schematic view of the crotch belt device 20 of the fifth embodiment of the present disclosure showing the limiting member 22 at a lower position, in which the first end 231 of the crotch belt 23 is pulled out to a longer length. When it is needed to adjust the limiting member 22 from the upper position shown in FIG. 25 to the lower position shown in FIG. 26, the first end 231 of the crotch belt 23 is simply pulled downward, and the position where the crotch belt 23 is connected with the connecting member 24 can be changed by pulling the first end 231 of the crotch belt 23, thereby changing the height of the limiting member 22 in a more convenient manner.

[00121] In summary of the first to fifth embodiments, in the solution of the present disclosure, the connection position between the crotch belt 23 and the limiting member 22 is adjustable to adjust the height of the limiting member 22 relative to the seat portion 16, and compared to adjusting the effective length of the crotch belt 23 by adjusting the connection position between the seat portion 16 and the crotch belt 23, the solution of the present disclosure is more convenient for the user to operate to adjust the effective length of the crotch belt 23, thereby adjusting the height of the limiting member 22.

[00122] Since the features of the invention can be embodied in various forms without departing from the characteristics of the invention, it should also be understood that the above-mentioned embodiments are not limited to any details described above, unless otherwise noted, and should be broadly interpreted as falling within the scope defined by the appended claims. Therefore, all modifications and alterations falling within the scope and limit of the claims or equivalent solutions of such scope and limit shall be covered by the appended claims.

Claims

1. A crotch belt device, comprising:a limiting member; anda crotch belt having a first end and a second end disposed opposite the first end, the first end of the crotch belt is connected with the limiting member, the second end of the crotch belt is adapted to be fixed to a seat portion of a child carrier;an adjustment mechanism disposed at the limiting member, and the position where the first end of the crotch belt is connected with the limiting member is adjustable through the adjustment mechanism.

2. The crotch belt device according to claim 1, wherein the adjustment mechanism comprises:a sliding groove disposed at the base portion of the limiting member;a sliding member connected with the first end of the crotch belt and accommodated in the sliding groove, and the sliding member can slide up and down along the sliding groove;a plurality of first locking members disposed at one of the base portion of the limiting member and the sliding member, and the plurality of first locking members are arranged spaced apart in the up-down direction;a second locking member disposed at the other one of the base portion of the limiting member and the sliding member, the second locking member is engaged with the corresponding first locking member as the sliding member and the sliding groove slide relative to each other; andan operating member being connected to the first locking member or the second locking member, and when the operating member is operated, the first locking member and the second locking member are unlocked, to permit the sliding member slide in the up-down direction relative to the sliding groove.

3. The crotch belt device according to claim 2, wherein the limiting member is provided with:2025200188   10 Jan 2025a base portion having opposing first and second surfaces;a protection sheet portion being connected to the base portion and extending outwardly therefrom, the first surface of the base portion faces the protection sheet portion and the second surface of the base portion faces away from the protection sheet portion; anda limiting punch defined between the base portion and the protection sheet portion and used for a safety belt to pass through and limiting the safety belt,the plurality of first locking members are disposed at the base portion of the limiting member, the second locking member is disposed at the sliding member, the operating member is connected to the second locking member, and the operating member can drive the sliding member to slide in the up-down direction relative to the sliding groove.

4. The crotch belt device according to claim 3, wherein the plurality of first locking members are respectively disposed at a left side and a right side of the sliding groove in the up-down direction, orthe adjustment mechanism further comprises an elastic member, and the elastic member abuts against the second locking member to bias the second locking member to be engaged with the corresponding first locking member.

5. The crotch belt device according to claim 2, wherein the sliding member is provided with:a first opening disposed at the surface of the sliding member away from the sliding groove;a second opening disposed at the surface of the sliding member facing the sliding groove;the operating member comprises:an operating end exposed from the first opening; anda connecting end passing through the sliding member and exposed from the second opening.

6. The crotch belt device according to claim 2, wherein two first openings are provided2025200188   10 Jan 2025on the surface of the sliding member away from the sliding groove, one second opening is provided on the surface of the sliding member facing the sliding groove, and the first opening and the second opening are used for limiting the stroke of the operating member, orthe second surface of the base portion is provided with an opening extending in the up-down direction, the operating member enters the sliding groove through the opening, and the left side and the right side of the opening are arranged to protrude oppositely relative to the left side and the right side of the sliding groove so as to limit the sliding member and prevent the sliding member from disengaging from the sliding groove through the opening.

7. The crotch belt device according to claim 3, wherein the adjustment mechanism comprises:at least two limiting grooves disposed at one of the first surface and the second surface of the base portion of the limiting member at intervals in the up-down direction;at least two adjustment holes disposed corresponding to the at least two limiting grooves;a communicating groove communicating each of the adjustment holes; anda buckle member mounted in each of the limiting grooves, the first end of the crotch belt is connected to the buckle member, and the crotch belt penetrates out of the adjustment hole.

8. The crotch belt device according to claim 7, wherein the at least two limiting grooves comprise a first limiting groove and a second limiting groove, the first limiting groove is located above the second limiting groove, and the first limiting groove has a side opening.

9. The crotch belt device according to claim 8, wherein the protection sheet portion of the limiting member shields at least one part of the first limiting groove, orthe second limiting groove is located at the lower end of the limiting member and has a lower opening.

10. The crotch belt device according to claim 1, wherein the adjustment mechanism comprises:2025200188   10 Jan 2025at least two adjustment rods disposed at the base portion of the limiting member at intervals in the up-down direction;a connecting buckle connected with the first end of the crotch belt and switchable buckled on one of the at least two adjustment rods.

11. The crotch belt device according to claim 10, wherein the adjustment mechanism further comprises:a supporting rod disposed at the base portion of the limiting member, and the first end of the crotch belt bypasses the supporting rod and is connected to the adjustment rod through the connecting buckle.

12. A crotch belt device, comprising:a limiting member; anda crotch belt connected with the limiting member and having a first end and a second end disposed opposite to the first end, the second end is fixed at a seat portion of the child carrier, and the position where the crotch belt is connected with the limiting member is adjustable so as to adjust the height of the limiting member relative to the seat portion.

13. The crotch belt device according to claim 12, wherein the crotch belt device further comprises an adjustment mechanism disposed at the limiting member, the first end of the crotch belt is connected with the limiting member through the adjustment mechanism, and the position where the first end of the crotch belt is connected with the limiting member is adjustable through the adjustment mechanism.

14. The crotch belt device according to claim 12, wherein the limiting member is connected between the first end and the second end of the crotch belt, and the position where the crotch belt is connected with the limiting member is adjustable through the first end.

15. The crotch belt device according to claim 14, wherein the crotch belt is a half-folded crotch belt, two free ends of the half-folded crotch belt are both the second ends of the crotch2025200188   10 Jan 2025belt, and the half-folded part is the first end of the crotch belt, orwherein the first end of the crotch belt is also provided with an insert to thicken the first end.

16. The crotch belt device according to claim 14, wherein the crotch belt comprises a first belt and a second belt arranged on top of each other, a first end of the first belt and a first end of the second belt are both the second ends of the crotch belt, and the second end of the first belt and the second end of the second belt are arranged on top of each other to form the first end of the crotch belt, orthe crotch belt comprises a first belt and a second belt arranged on top of each other, the first end of the first belt and the first end of the second belt are both the second end of the crotch belt, the second end of the first belt is folded back to form a first folded-back section, the second end of the second belt is folded back to form a second folded-back section, and the first folded-back section and the second folded-back section are overlapped and connected to form the first end of the crotch belt.

17. The crotch belt device according to claim 14, wherein the crotch belt device is also provided with a stopping portion which is connected with the crotch belt to limit the limit position where the crotch belt is connected with the limiting member, andthe stopping portion is disposed between the first end of the crotch belt and the limiting member; and / or the stopping portion is disposed between the second end of the crotch belt and the limiting member.

18. The crotch belt device according to claim 14, wherein the crotch belt is connected with the limiting member through a connecting member, the connecting member is provided with a penetrating opening, and the second end of the crotch belt is fixed to the seat portion of the child carrier after passing through the penetrating opening.

19. The crotch belt device according to claim 18, wherein the connecting member is also provided with anti-slip teeth.2025200188   10 Jan 202520. A child safety seat, comprising: a backrest portion and a seat portion, wherein the crotch belt device according to any of claims 1 to 19 is connected to the child safety seat and a second end of a crotch belt of the crotch belt device is fixed to the seat portion.

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