Crotch belt device and child safety seat

Abstract

The invention discloses a crotch belt device and a child safety seat. The crotch belt device comprises a limiting part, a supporting part and a supporting part, the crotch strap is provided with a first end and a second end opposite to the first end, the first end of the crotch strap is connected with the limiting part, and the second end of the crotch strap is used for being fixed to a seat part of the child carrier; the adjusting mechanism is arranged on the limiting piece, and the position, connected with the limiting piece, of the first end of the crotch belt can be adjusted through the adjusting mechanism. According to the adjusting mechanism of the crotch belt device, the height of the limiting piece relative to the child safety seat can be conveniently adjusted so as to meet different use requirements of children of different body types and different ages, the adjusting mechanism is arranged on the limiting piece of the crotch belt device, and therefore adjusting operation is more convenient.

Description

Technical Field

[0001] The present application relates to a crotch belt device and a child safety seat provided with the crotch belt device. Background Art

[0002] A child carrier (such as a child safety seat) is a load-bearing member designed specifically for children. When a child is seated, the child is usually restrained within the child carrier to improve the safety of the child during travel.

[0003] Child carriers usually have a crotch belt device. The height position of the existing crotch belt device usually cannot be adjusted. Even if some existing crotch belt devices can adjust their height positions, the adjustment method is complex, which is not convenient for users to perform the adjustment operation and affects the user experience. Summary of the Invention

[0004] In view of this, an object of the present application is to provide a crotch belt device and a child safety seat including the crotch belt device, wherein the crotch belt device can be adjusted in height in a convenient manner, so as to meet the usage requirements of users of different body types or ages.

[0005] To this end, according to a solution of the present application, a crotch belt device is provided, including: a limiting member; and a crotch belt having a first end and a second end opposite to the first end. The first end of the crotch belt is connected to the limiting member, and the second end of the crotch belt is used to be fixed to the seat part of the child carrier; an adjusting mechanism provided on the limiting member, and the position where the first end of the crotch belt is connected to the limiting member can be adjusted by the adjusting mechanism.

[0006] According to an embodiment, the limiting member is provided with: a base having opposite first and second surfaces; a guard piece portion connected to the base and extending outward from the base, the first surface of the base facing the guard piece portion, and the second surface of the base facing away from the guard piece portion; a limiting through-hole defined between the base and the guard piece portion for a safety belt to pass through and limit the safety belt.

[0007] According to an embodiment, the length of the guard piece portion along the longitudinal direction is less than the length of the base along the longitudinal direction.

[0008] According to an embodiment, a connecting portion is provided at the lower end of the limiting member, and the first end of the crotch belt is connected to the limiting member through the connecting portion, and the connecting portion is a through-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 part, and the two branch belts are connected and arranged in an inverted V shape from the limiting member to the seat part.

[0010] According to one embodiment, the adjusting mechanism is used to adjust the height in the up-and-down direction of the position where the first end of the hip belt is connected to the limiting member.

[0011] According to one embodiment, the adjusting mechanism includes: a sliding groove provided at the base of the limiting member; a sliding member connected to the first end of the hip belt and received in the sliding groove, and the sliding member can slide up and down along the sliding groove; a plurality of first locking members provided on one of the base of the limiting member and the sliding member, and the plurality of first locking members are arranged at intervals along the up-and-down direction; a second locking member provided on the other of the base of the limiting member and the sliding member, and the second locking member engages 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 to allow the sliding member to slide up and down relative to the sliding groove.

[0012] According to one 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 locking member has a protrusion.

[0013] According to one embodiment, the plurality of first locking members are provided on the base of the limiting member, the second locking member is provided on the sliding member, the operating member is connected to the second locking member, and the operating member can drive the sliding member to slide up and down relative to the sliding groove.

[0014] According to one embodiment, the plurality of first locking members are separately provided on the left and right sides of the sliding groove along the up-and-down direction.

[0015] According to one embodiment, the adjusting mechanism further includes an elastic member, and the elastic member abuts against the second locking member to bias the second locking member to engage with the corresponding first locking member.

[0016] According to one embodiment, two second locking members are provided, and two operating members are provided to respectively operate the two second locking members; the elastic member abuts between the two second locking members to bias the two second locking members to engage with the corresponding first locking members.

[0017] According to one embodiment, the sliding member is in a plate shape and is provided with: a hip belt through hole provided at the lower end of the sliding member, and the first end of the hip belt passes through the hip belt through hole and is connected to the limiting member via the sliding member; and a side opening provided on at least one of the two side surfaces of the sliding member for the second locking member to pass through.

[0018] According to one embodiment, the sliding member is provided with: a first opening, which is provided on the surface of the sliding member opposite to the sliding groove; a second opening, which is provided on the surface of the sliding member facing the sliding groove; the operating member includes: an operating end, which is exposed from the first opening; and a connecting end, which passes through the sliding member and is exposed from the second opening.

[0019] According to one embodiment, the connecting end is in the form of an undercut.

[0020] According to one embodiment, the sliding member is provided with: a first opening, which is provided on the surface of the sliding member opposite to the sliding groove; and a second opening, which is provided on the surface of the sliding member facing the sliding groove, the second locking member is provided inside the sliding member, and the second locking member includes: a fixing opening, which is aligned with the first opening and the second opening, and the connecting end of the operating member passes through the first opening and the fixing opening respectively and then emerges from the second opening; a protrusion, which extends from at least one of the two side surfaces of the sliding member.

[0021] According to one embodiment, the surface of the sliding member opposite to the sliding groove is provided with two first openings, and the surface of the sliding member facing the sliding groove is provided with a second opening, and the first opening and the second opening are used to limit the stroke of the operating member.

[0022] According to one embodiment, the second surface of the base is provided with an opening extending in the up-down direction, and the operating member enters the sliding groove through the opening. The left and right sides of the opening are protruded toward each other relative to the left and right sides of the sliding groove to limit the sliding member from detaching from the sliding groove from the opening.

[0023] According to another embodiment, the adjustment mechanism includes: at least two limit grooves, which are arranged at intervals along the up and down directions on one of the first surface and the second surface of the base of the limit member; at least two adjustment holes, which are arranged corresponding to the at least two limit grooves; a connecting groove, which connects each of the adjustment holes; and a buckle member, which can be installed in each of the limit grooves, and the first end of the crotch strap is connected to the buckle member, and the crotch strap passes through the adjustment hole.

[0024] According to another embodiment, the buckle lock is a Japanese buckle.

[0025] According to another embodiment, the at least two limiting grooves include 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 protective sheet portion of the limiting member blocks at least a portion 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 an open lower edge.

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

[0029] According to yet another embodiment, the adjusting mechanism includes: at least two adjusting rods, which are arranged at intervals in the up and down direction on the base of the limiting member; a connecting buckle, which is connected to the first end of the crotch strap, and the connecting buckle can be switched to buckle on one of the at least two adjusting rods.

[0030] According to yet another embodiment, the adjusting mechanism further includes: a supporting rod, which is arranged on the base of the limiting member, and the first end of the crotch strap bypasses the supporting rod and is connected to the adjusting rod through the connecting buckle.

[0031] According to yet another embodiment, the connecting buckle has a buckling part that buckles with the adjusting rod, and the cross section of the buckling part is U-shaped.

[0032] According to yet another embodiment, the supporting rod straddles the left and right ends of the base of the limiting member and is located above the adjusting rod.

[0033] According to yet another solution of the present application, there is also provided a crotch strap device, including a limiting member; and a crotch strap, the crotch strap is connected to the limiting member and has a first end and a second end opposite to the first end, the second end is fixed to the seat part of the child carrier, and the connection position between the crotch strap and the limiting member is adjustable to adjust the height of the limiting member relative to the seat part.

[0034] According to an embodiment, the crotch strap device further includes an adjusting mechanism arranged on the limiting member, the first end of the crotch strap is connected to the limiting member through the adjusting mechanism, and the position where the first end of the crotch strap is connected to the limiting member can be adjusted through the adjusting mechanism.

[0035] According to an embodiment, the limiting member is connected between the first end and the second end of the crotch strap, and the connection position between the crotch strap and the limiting member can be adjusted through the first end.

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

[0037] According to an embodiment, the crotch strap includes a first strap and a second strap that are stacked on each other, the first ends of the first strap and the second strap are both the second ends of the crotch strap, and the second ends of the first strap and the second strap are stacked and connected to form the first end of the crotch strap.

[0038] According to one embodiment, the crotch strap includes a first strap and a second strap that are stacked on top of each other. The first ends of the first strap and the second strap are both the second end of the crotch strap. The second end of the first strap is folded back to form a first folded section, and the second end of the second strap is folded back to form a second folded section. The first folded section and the second folded section are stacked and connected to form the first end of the crotch strap.

[0039] According to one embodiment, an insert is further provided at the first end of the crotch strap to thicken the first end.

[0040] According to one embodiment, the crotch strap device is further provided with a stop portion. The stop portion is connected to the crotch strap to limit the extreme position where the crotch strap is connected to the limiting member.

[0041] According to one embodiment, the stop portion is provided between the first end of the crotch strap and the limiting member; and / or, the stop portion is provided between the second end of the crotch strap and the limiting member.

[0042] According to one embodiment, the crotch strap is connected to the limiting member through a connecting member. The connecting member is provided with a threading opening. The second end of the crotch strap passes through the threading opening and is fixed to the seat portion of the child carrier.

[0043] According to one embodiment, the connecting member is further provided with anti-slip teeth.

[0044] According to one embodiment, the connecting member is a D-ring, and the D-ring is integrally formed with the limiting member.

[0045] This application also provides a child safety seat, including: a backrest portion and a seat portion. The crotch strap device as described above is connected to the child safety seat, and the second end of the crotch strap of the crotch strap device is fixed to the seat portion.

[0046] The adjustment mechanism of the crotch strap device according to this application can conveniently adjust the height of the limiting member relative to the seat portion of the child carrier to meet the different usage requirements of children of different body types and different ages; in addition, the adjustment mechanism according to this application is provided on the limiting member of the crotch strap device, so the adjustment operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0048] In the drawings:

[0049] Figure 1is a schematic diagram of a child safety seat of the present application, wherein the child safety seat is provided with a crotch belt device;

[0050] Figure 2 is another schematic diagram of the child safety seat of the present application, wherein the child safety seat is also equipped with a crotch belt device;

[0051] Figure 3 is a schematic diagram of a first embodiment of a crotch strap device of the present application;

[0052] Figure 4a and Figure 4b Schematic diagrams of the front and back sides of the crotch belt device of the first embodiment of the present application;

[0053] Figure 5 is an exploded schematic diagram of the specific structure of the crotch belt device of the first embodiment of the present application;

[0054] Figure 6 is a schematic diagram of a base portion and a guard plate portion of a position-limiting member according to a first embodiment of the present application;

[0055] Figure 7 is a schematic diagram of the crotch belt device of the first embodiment of the present application, with the base and the guard plate portion hidden and viewed from the back;

[0056] Figure 8 is a cross-sectional view of a crotch belt device according to a first embodiment of the present application;

[0057] Figure 9a is a schematic diagram of a second embodiment of the crotch belt device of the present application, which shows the front side of the limiting member;

[0058] Figure 9b is a schematic diagram of a second embodiment of the crotch belt device of the present application, which shows the back side of the stopper;

[0059] Figure 10 is a schematic diagram of the crotch belt device of the second embodiment of the present application after the crotch belt is hidden;

[0060] Figure 11 is a cross-sectional view of the limiting member of the crotch belt device of the second embodiment of the present application after the guard plate portion is cut and viewed toward the first surface of the base;

[0061] Figure 12 is a schematic diagram of a third embodiment of the crotch belt device of the present application, which shows the front side of the limiting member;

[0062] Figure 13 is a schematic diagram of a third embodiment of the crotch belt device of the present application, which shows the back side of the stopper;

[0063] Figure 14Schematic diagram of the front side of the limiting member of the hip belt device according to the third embodiment of the present application;

[0064] Figure 15 Partial cross-sectional view of the front side of the limiting member of the hip belt device according to the third embodiment of the present application; wherein the protective sheet portion is cut away;

[0065] Figure 16 Integral three-dimensional view of the hip belt device according to the third embodiment of the present application;

[0066] Figure 17a Schematic diagram of the fourth embodiment of the hip belt device of the present application, showing the front side of the hip belt device;

[0067] Figure 17b Schematic diagram of the fourth embodiment of the hip belt device of the present application, showing the back side of the hip belt device;

[0068] Figure 18 Side cross-sectional view of the adjustment mechanism of the hip belt device according to the fourth embodiment of the present application;

[0069] Figure 19a Schematic diagram of the hip belt device according to the fourth embodiment of the present application, observed from the front after hiding the hip belt;

[0070] Figure 19b Schematic diagram of the hip belt device according to the fourth embodiment of the present application, observed from the back after hiding the hip belt;

[0071] Figure 20 Schematic diagram of the hip belt device according to the fifth embodiment of the present application;

[0072] Figure 21 Schematic diagram of one embodiment of the hip belt of the hip belt device according to the fifth embodiment of the present application;

[0073] Figure 22 Schematic diagram of another embodiment of the hip belt of the hip belt device according to the fifth embodiment of the present application;

[0074] Figure 23 Schematic diagram of the limiting member of the hip belt device according to the fifth embodiment of the present application, showing the front side of the limiting member;

[0075] Figure 24 Schematic diagram of the limiting member of the hip belt device according to the fifth embodiment of the present application, showing the back side of the limiting member;

[0076] Figure 25 Schematic diagram of the hip belt device according to the fifth embodiment of the present application, showing the limiting member in a higher position; and

[0077] Figure 26Another schematic diagram of the crotch belt device according to the fifth embodiment of the present application; this diagram shows that the limiting member is in a lower position.

[0078] List of reference numerals:

[0079] Shoulder strap: 1

[0080] Waist belt: 2

[0081] Child safety seat: 10

[0082] Headrest portion 12, backrest portion 14, seat portion 16

[0083] Crotch belt device: 20

[0084] Limiting member 22

[0085] Base portion 221

[0086] First surface 221a, second surface 221b

[0087] Guard piece portion 222, connecting portion 223, limiting through hole 224

[0088] Crotch belt: 23

[0089] First end 231, second end 232

[0090]

First Embodiment

[0091] Adjusting mechanism 100

[0092] Sliding member 110

[0093] Crotch belt through hole 112, side opening 113, first opening 114, second opening 115, second locking member 120

[0094] Protruding portion 121, fixing hole 122, operating member 130

[0095] Operating end 131, connecting end 132, elastic member 140

[0096] Sliding groove 150

[0097] Track 152

[0098] First locking member 160

[0099]

Second Embodiment

Third Embodiment

[0100] Adjusting mechanism 200

[0101] Buckling member 220

[0102] First limiting groove 250

[0103] Side opening 251

[0104] Second limiting groove 260

[0105] Open bottom 261

[0106] Communication groove 270

[0107] First adjustment hole 280

[0108] Second adjustment hole 290

[0109]

Fourth Embodiment

[0110] Adjusting mechanism 300

[0111] Connecting buckle 320

[0112] Insertion opening 321 Buckling portion 322

[0113] First adjusting rod 350

[0114] Second adjusting rod 360

[0115] Supporting rod 370

[0116] First arrow S1

[0117] Second arrow S2

[0118]

Fifth Embodiment

[0119] Hip belt device 20

[0120] Limiting member 22

[0121] Hip belt 23

[0122] First end 231 Second end 232

[0123] First hip belt 23a

[0124] First end 23a1 Second end 23a2 First folding section 23c1

[0125] Second hip belt 23b

[0126] First end 23b1 Second end 23b2 Second folding section 23c2

[0127] Insertion member 235

[0128] Positioning portion 236

[0129] Stopping portion 237

[0130] Connecting member 24

[0131] Insertion opening 241 Anti-slip teeth 242 Detailed implementation method

[0132] In the following, exemplary embodiments will be described in detail with reference to the accompanying drawings. Although the present disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings. However, the present disclosure should not be construed as limited to the embodiments set forth herein. On the contrary, the present disclosure will cover all modifications, equivalents, and alternatives falling within the spirit and scope of the embodiments.

[0133] In the following description, a child safety seat is taken as an example for illustration. However, it can be understood that the crotch belt device according to the present invention can also be applied to other types of vehicles, such as child dining chairs, baby rockers, various types of baby strollers and other child vehicles or wheelchairs.

[0134] In addition, in the case of a child safety seat, the child safety seat can be installed in a vehicle, and a child can be restrained by a seat belt on the vehicle or a safety belt of the child safety seat. The crotch belt device provided in the present application can adjust the effective length of the crotch belt and can be connected to the seat belt on the vehicle to limit the height of the seat belt on the vehicle. As Figure 1 schematically shows the crotch belt device 20 of the present application applied to a Booster child safety seat, Figure 1 the dashed line shows the seat belt on the vehicle, including the shoulder belt 1 and the waist belt 2 on the vehicle. The waist belt 2 on the vehicle can pass through the crotch belt device 20 for limiting. Of course, the crotch belt device 20 can also be applied to other types of child vehicles; the crotch belt device 20 can also be applied to the safety belt of a Harness child safety seat (such as a five-point safety belt or a three-point safety belt) or the safety belt of other vehicles, so that the crotch belt device 20 is connected to the shoulder belt or waist belt on the Harness child safety seat or other vehicles to adjust the length of the crotch belt.

[0135] The following description and illustration take a Booster child safety seat as an example and take the cooperation between the crotch belt device and the waist belt 2 on the vehicle as an example for illustration.

[0136] As Figure 1 and Figure 2 shown, where Figure 1 is a schematic diagram showing the child safety seat 10 of the present application, Figure 2 is another schematic diagram of the child safety seat 10 of the present application. The child safety seat 10 is equipped with a crotch belt device 20. The crotch belt device 20 according to the present application includes a limiting member 22 and a crotch belt 23. The waist belt 2 of the vehicle can pass through the limiting member 22 of the crotch belt device 20 for limiting. The shoulder belt 1 of the vehicle passes through the backrest portion 14 and the headrest portion 12 to restrain the child's body against the backrest portion 14 of the child safety seat 10. The limiting member 22 according to the present application can be a protective sheet type limiting member (such as Figure 1 , Figure 2(as shown in), or it can also be a buckle - type limiting member (not shown). The buckle - type limiting member is applicable to the seat belt of the Harness child safety seat. It can also be a limiting member that combines the guard - piece type and the buckle type, so that it can be switched from the mode of applying to the seat belt of the Booster safety seat to the mode of applying to the seat belt of the Harness safety seat. The crotch belt 23 according to the present application can be in the form of a webbing, for example.

[0137] The crotch belt 23 includes opposite first end 231 and second end 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, can be fixed to the seat portion 16 through a D - ring or a bow - tie. The second end 232 of the crotch belt 23 can be detached from the seat portion 16 to remove the crotch belt device 20 from the child carrier. Figure 1 and Figure 2 The crotch belt 23 shown in has two branch belts between the limiting member 22 and the seat portion 16. The two branch belts are connected and are arranged in an inverted V - shape from the limiting member 22 to the seat portion 16, but not limited thereto. The crotch belt 23 can also be set to only one or more than two branch belts according to actual needs. As Figure 1 and Figure 2 shown, the seat portion 16 has an elongated hole. The second end 232 of the crotch belt 23 passes through the elongated hole, and the elongated hole is substantially perpendicular to the width direction (i.e., the left - right direction) of the seat portion. The crotch belt 23 twists between the limiting member 22 and the seat portion 16. The wide surface of the crotch belt 23 is parallel to the width direction of the seat portion 16 near the first end 231, and the wide surface of the crotch belt 23 is perpendicular to the width direction of the seat portion 16 near the second end 232.

[0138] The crotch belt device 20 according to the present application further includes an adjustment mechanism. The adjustment mechanism is arranged on the limiting member 22. Through the adjustment mechanism, the position where the first end 231 of the crotch belt 23 is connected to the limiting member 22 can be adjusted, and further, the height of the limiting member 22 relative to the child safety seat 10 can be adjusted. In this way, even for a child with a smaller body size or a younger age sitting on the child safety seat 10, the effective length of the crotch belt 23 can be adjusted through the adjustment mechanism, so that the position of the waist belt can be adjusted, improving the safety of the child's ride and making it applicable to a wider range of children's ages or body sizes.

[0139] Specifically, the following will refer to the attached Figure 3 、 4a 、4b, Figure 5 to illustrate the first embodiment of the adjustment mechanism of the crotch belt device 20 according to the present application, where Figure 3 is a schematic diagram of the first embodiment of the crotch belt device of the present application; Figure 4a and Figure 4b are respectively the front - view and back - view schematic diagrams of the crotch belt device of the first embodiment of the present application; Figure 5It is an exploded view of the specific structure of the crotch strap device according to the first embodiment of the present application. For convenience, in the following description, the front surface of the crotch strap device 20 is the surface facing the outside of the child safety seat, and the back surface of the crotch strap device 20 is the surface facing the backrest 14 of the child safety seat; similarly, the front surface of the limiting member 22 is the surface facing the outside of the child safety seat, and the back surface of the limiting member 22 is the surface facing the backrest 14 of the child safety seat. The front surfaces of the crotch strap device 20 and the limiting member 22 are shown in Figure 1 and Figure 2 respectively.

[0140] Referring to Figure 6 shown, Figure 6 is a schematic diagram of the base portion and the guard portion of the limiting member according to the first embodiment of the present application. The limiting member 22 includes a base portion 221 and a guard portion 222. The base portion 221 includes opposite first and second surfaces 221a and 221b. The first surface 221a of the base portion 221 faces the guard portion 222, and the second surface 221b of the base portion 221 faces away from the guard portion 222. A limiting through-hole 224 is defined between the base portion 221 and the guard portion 222. In this embodiment, when the crotch strap device 20 is installed 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, and the guard portion 222 extends from the base portion 221 and faces the outside of the child safety seat 10 (as shown in Figure 1 and Figure 2 ); in other embodiments, it can also be that the guard 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 passes through the limiting through-hole 224, so that the waist belt 2 is limited by the crotch strap device 20 to prevent the waist belt 2 from moving to too high a position. According to the embodiment shown in Figure 6 , the longitudinal length of the guard portion 222 is less than the longitudinal length of the base portion 221. A connecting portion 223 is further provided at the lower end of the limiting member 22. The first end of the crotch strap 23 is connected to the limiting member 22 through the connecting portion 223. Figure 6 The connecting portion 223 shown in

[0141] Referring to Figure 5 shown, according to the first embodiment, the adjusting mechanism 100 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 provided on the base portion 221 of the limiting member 22; the sliding member 110 is connected to the first end 231 of the crotch strap 23 and the sliding member 110 is received in the sliding groove 150, and the sliding member 110 can slide up and down along the sliding groove 150. As shown in Figure 5 andFigure 6 As shown, a second surface 221b of the base 221 is provided with an opening extending in the vertical direction. The operating member 130 enters the sliding groove 150 through the opening. The left and right sides of the opening protrude towards each other relative to the left and right sides of the sliding groove 150 to limit the sliding member 110 from disengaging from the sliding groove 150 through the opening. In other words, the left and right sides of the opening protrude towards 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 can respectively include a track 152, and both sides of the sliding member 110 can be partially received in the track 152. The sliding member 110 can slide up and down along the track 152 to prevent the sliding member 110 from falling. According to Figure 5 In the embodiment shown in , a plurality of first locking members 160 are provided on the base 221 of the limiting member 22 and are arranged at intervals in the vertical direction, and the second locking member 120 is provided on the sliding member 110. However, this is not limiting. In other embodiments, a plurality of first locking members 160 can also be provided on the sliding member 110, and the second locking member 120 is provided on the base 221 of the limiting member 22, as long as the second locking member 120 engages the corresponding first locking member 160 as the sliding member 110 and the sliding groove 150 slide relative to each other.

[0142] The operating member 130 is connected to the first locking member 160 or the second locking member 120. 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 vertical direction relative to the sliding groove 150.

[0143] In Figure 5 In the embodiment shown, a plurality of first locking members 160 have locking holes, and a plurality of first locking members 160 are provided on the base 221 of the limiting member 22; the second locking member 120 includes a protruding portion 121, and the second locking member 120 is provided on the sliding member 110. The operating member 130 is connected to the second locking member 120. Thus, the operating member 130 drives the sliding member 110 to slide in the vertical direction relative to the sliding groove 150. However, this is not limiting. It can also be that the first locking member 160 has a protruding portion, and the second locking member 120 has a locking hole.

[0144] The sliding member 110 can be, for example, in a plate shape, and can be provided with a crotch strap through hole 112, side openings 113, a first opening 114, and a second opening 115 (the second opening 115 is in Figure 7As shown in [figure number not provided], the hip belt insertion opening 112 is provided at the lower end of the slider 110. The first end 231 of the hip belt 23 passes through the hip belt insertion opening 112, so that the hip belt 23 can be connected to the limiting member 22 through the slider 110, and the hip belt 23 can slide up and down along the sliding groove 150 together with the slider 110. The first opening 114 of the slider 110 is provided on the surface of the slider 110 facing away from the sliding groove 150 (in other words, the first opening 114 of the slider 110 is provided on the surface of the slider 110 facing away from the protective sheet portion 222), and the second opening 115 of the slider 110 is provided on the surface of the slider 110 facing the sliding groove 150 (in other words, the second opening 115 of the slider 110 is provided on the surface of the slider 110 close to the protective sheet portion 222). The second locking member 120 can be provided inside the slider 110. In addition to the protruding portion 121, the second locking member 120 can also include a fixing opening 122. The protruding portion 121 can protrude outward from the side opening 113 of the slider 110 to engage with the first locking members 160 distributed on 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 slider 110 to facilitate the passing and installation of the operating member 130 described below.

[0145] The operating member 130 includes an operating end 131 and a connecting end 132. With reference to Figure 4b and Figure 7 shown, where Figure 7 is a schematic view of the hip belt device of the first embodiment of the present application with the base and the protective 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 slider 110, and the connecting end 132 of the operating member 130 passes through the first opening 114 of the slider 110 and the fixing opening 122 of the second locking member 120 in sequence and is exposed from the second opening 115 of the slider 110. According to Figure 5 the embodiment shown, the connecting end 132 is in the form of an inverted buckle.

[0146] The adjusting mechanism 100 further includes an elastic member 140. The elastic member 140 abuts against the second locking member 120 to apply pressure to the second locking member 120 so that the protruding portion 121 of the second locking member 120 is biased to engage with the corresponding first locking member 160.

[0147] In Figure 5In the illustrated embodiment, two second locking members 120 are provided. Correspondingly, two operating members 130 are also provided to respectively operate the two second locking members 120. The side openings 130 and the first openings 114 of the sliding member 110 are also both provided in two. The elastic member 140 abuts between the two second locking members 120 to bias the two second locking members 120 to engage with the corresponding first locking members 160. However, this is not limiting, and the sliding member 120 and the operating member 130 can both be provided as one. The number of the plurality of first locking members 160 can be set according to the requirements of the adjustment gears. The first locking members 160 can be provided on the left and right sides of the sliding groove 150 or only on one side thereof or at other positions of the sliding groove 150.

[0148] Next, with reference to Figure 8 the adjustment process of the adjustment mechanism 100 according to the first embodiment will be described, where Figure 8 is a cross-sectional view of the crotch belt device of the first embodiment of the present application, as Figure 8 shown. At this time, the protrusion 121 of the second locking member 120 engages with the first locking member 160 located at the lower end of the sliding groove 150. The sliding member 110 is located at a lower position in the sliding groove 150. At this time, the entire crotch belt device 20 is at a relatively high position relative to the child safety seat 10. The crotch belt device 20 at this position is suitable for use by children with a larger body size or older age. 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 so that the protrusion 121 of the second locking member 120 disengages from the engagement with the first locking member 160. Then, continue to operate the operating end 131 of the operating member 130 along 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 all slide upward along the direction of the second arrow S2 until reaching the appropriate height, and then release the operating end 131 of the operating member 130. At this time, under the elastic force of the elastic member 140, the protrusion 121 of the second locking member 120 extends outward again to engage with the corresponding first locking member 160. At this time, the entire crotch belt device 20 is at a relatively low position relative to the child safety seat 10. The crotch belt device 20 at this position is suitable for use by children with a smaller body size or younger age.

[0149] In addition to allowing the operating member 130 to be installed, the two first openings 114 and one second opening 115 provided on the sliding member 110 can also be used to limit the stroke of the operating member 130. For example, the two first openings 114 limit the stroke of the operating member 130 when the operating member 130 presses the elastic member 140 and moves 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 can limit the stroke of the operating member 130 in the direction opposite to the direction of the first arrow S1 under the elastic force of the elastic member 140. Of course, this is not limiting, and the second opening 115 can also be provided in two, and the first opening 114 can be provided in one.

[0150] The adjusting mechanism 100 based on this embodiment is provided on the limiting member 22 of the hip belt device 20, so the adjustment operation is easier.

[0151] The following will refer to Figure 9a 、 Figure 9b 、 Figure 10 and Figure 11 the specification describes the adjusting mechanism 200 according to the second embodiment. The parts that are the same as those in the first embodiment in the second embodiment will not be described again. Among them, Figure 9a is a schematic diagram of the second embodiment of the hip belt device of the present application, and the front of the limiting member is shown in this figure; Figure 9b is a schematic diagram of the second embodiment of the hip belt device of the present application, and the back of the limiting member is shown in this figure; Figure 10 is a schematic diagram of the hip belt device of the second embodiment of the present application after hiding the hip belt; Figure 11 is a cross-sectional view of the limiting member of the hip belt device of the second embodiment of the present application when the protective sheet portion is cut and viewed from the first surface of the base portion. The adjusting mechanism 200 of the second embodiment includes at least two limiting grooves. In the Figure 9a and Figure 9b embodiments, it includes 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 this is not limiting, and the number of limiting grooves can be set according to the specific adjustment gear requirements. As Figure 9a shown, the first limiting groove 250 and the second limiting groove 260 are provided on the first surface 221a of the base portion 221 of the limiting member 22, and the protective sheet portion 222 of the limiting member 22 can block at least a part of the first limiting groove 250. As Figure 9bAs shown, a first adjustment hole 280 and a second adjustment hole 290 are further provided on the base 221 of the limiting member 22. 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 221. The first adjustment hole 280 corresponds to the first limiting groove 250 in position, and the second adjustment hole 290 corresponds to the second limiting groove 260 in position. The sizes of the first limiting groove 250 and the second limiting groove 260 are larger than the sizes of the first adjustment hole 280 and the second adjustment hole 290. The buckle member 220 can be installed in the first limiting groove 250 and the second limiting groove 260, and the crotch strap 23 extends from the second surface 221b of the base 221. The buckle member 220 can be a D-ring, but is not limited thereto.

[0152] The adjustment mechanism 200 is further provided with a communication groove 270, and the communication groove 270 communicates 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. Therefore, the communication groove 270 also communicates the first limiting groove 250 and the second limiting groove 260.

[0153] As Figure 9b shown, the first end 231 of the crotch strap 23 is connected to the buckle member 220. The buckle member 220 is installed in, for example, the second limiting groove 260, and the crotch strap 23 passes through the second adjustment hole 290. At Figure 9b the position shown, the buckle member 220 together with the crotch strap 23 is located at the lower end of the limiting member 22. At this time, the entire crotch strap device 20 is at a relatively high position relative to the child safety seat 10. The crotch strap device 20 at this position is suitable for use by children with a larger body size or older age. When the position of the crotch strap device 20 needs to be adjusted, if the buckle member 220 was originally located in the second limiting groove 260 and the crotch strap 23 needs to be adjusted to be shortened, the buckle member 220 can be first removed from the second limiting groove 260, the buckle member 220 is rotated and adjusted (or the crotch strap 23 is directly adjusted) so that the crotch strap 23 adapts to the extending direction of the communication hole 270. The crotch strap 23 is driven by the buckle member 220 to pass through the communication hole 270 to reach the first adjustment hole 280 (or the crotch strap 23 is directly pulled to move to the first adjustment hole 280). After that, the position of the buckle member 220 is rotated and adjusted, the crotch strap 23 is tightened, and the buckle member 220 is engaged into the first limiting groove 250. At this time, the entire crotch strap device 20 is at a relatively low position relative to the child safety seat 10. The crotch strap device 20 at this position is suitable for use by children with a smaller body size or younger age.

[0154] To facilitate the removal of the buckle member 220 from the first limiting groove 250 and the second limiting groove 260 or its engagement with the first limiting groove 250 and the second limiting groove 260, as Figure 11 shown, the first limiting groove 250 has a side opening 251, allowing the user to operate the buckle member 220 located in the first limiting groove 250 at the side opening 251, further improving the operation convenience, especially when the protective sheet portion 222 blocks the first limiting groove 250. The second limiting groove 260 has a bottom opening 261, allowing the user to operate the buckle member 220 located in the first limiting groove 250 at the bottom opening 261, further improving the operation convenience.

[0155] Next, refer to Figures 12 - 16 to illustrate the hip belt device 20 of the third embodiment, wherein, Figure 12 is a schematic diagram of the third embodiment of the hip belt device of the present application, showing the front side of the limiting member in this figure; Figure 13 is a schematic diagram of the third embodiment of the hip belt device of the present application, showing the back side of the limiting member in this figure; Figure 14 is a schematic diagram of the front side of the limiting member of the hip belt device of the third embodiment of the present application; Figure 15 is a partial cross-sectional view of the front side of the limiting member of the hip belt device of the third embodiment of the present application; wherein, the protective sheet portion is cut off; Figure 16 is an overall perspective view of the hip belt device of the third embodiment of the present application. The structure of the adjusting mechanism of the third embodiment is basically the same as that of the adjusting mechanism of the second embodiment. The difference is that, in order to make the removal and engagement operations of the buckle member 220 more convenient, in this third embodiment, as Figure 13 shown in, the first limiting groove 250 and the second limiting groove 260 are provided on the second surface 221b of the base portion 221 of the limiting member 22. In this way, when adjusting the connection position of the hip belt 23, the buckle member 220 can be removed from the second surface 221b of the base portion 221 of the limiting member 22, and when the buckle member 220 is adjusted to the appropriate position, the buckle member 220 can also be re-engaged into the corresponding limiting groove from the second surface 221b. Since the second surface 221b of the base portion 221 of the limiting member 22 is not blocked by the protective sheet portion 222, the above-mentioned adjusting operation is more convenient.

[0156] In addition, referring to Figure 16 , a connecting portion 223 is provided at the lower end of the base portion 221 of the limiting member 22. The connecting portion 223 is in the form of a perforation and communicates with the second adjusting hole 290 for the hip belt 23 to pass through. As Figure 14 and Figure 16 shown in, 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 perforation. The connecting portion 223 can be, for example, a rectangular perforation to limit the movement of the hip belt 23, but not limited thereto.

[0157] The adjusting mechanism 200 according to this embodiment can also conveniently adjust the height position of the limiting member 22, so as to provide corresponding waistband height positions for children of different body types and different ages, thereby improving safety.

[0158] Next, refer to Figure 17a , Figure 17b , Figure 18 to illustrate the adjusting mechanism 300 according to the fourth embodiment, wherein Figure 17a is a schematic diagram of the fourth embodiment of the crotch belt device of the present application, which shows the front of the crotch belt device; Figure 17b is a schematic diagram of the fourth embodiment of the crotch belt device of the present application, which shows the back of the crotch belt device; Figure 18 is a side cross-sectional view of the adjusting mechanism of the fourth embodiment of the crotch belt device of the present application. The adjusting mechanism 300 of the fourth embodiment is disposed on the second surface 221b of the base portion 221 of the limiting member 22, and includes a support rod 370, a first adjusting rod 350 and a second adjusting rod 360. Figure 17b and Figure 18 show two adjusting rods, but this is not limited thereto, and an appropriate number of adjusting rods can be set according to the required number of adjustment positions. The first adjusting rod 350 is disposed at the upper position of the base portion 221 of the limiting member 22, and the second adjusting rod 360 is disposed at the lower position of the base portion 221 of the limiting member. The support rod 270 is disposed on the base portion 221 of the limiting member 22 and is located above the first adjusting rod 350. The adjusting mechanism 300 further includes a connection buckle 320. As shown in Figure 18 , the first end 231 of the crotch belt 23 is connected to the connection buckle 320. After the crotch belt 23 bypasses the support rod 270 disposed on the upper portion of the base portion 221 of the limiting member 22, it is engaged with the second adjusting rod 360 disposed at the lower portion of the base portion 221 of the limiting member 22 through the connection buckle 320.

[0159] According to another embodiment, the above support rod 270 may also be omitted, and the first end 231 of the crotch belt 23 can be directly buckled upward with different adjusting rods.

[0160] Combined with reference to Figure 19a and Figure 19b shown, wherein Figure 19a is a schematic diagram of the crotch belt device of the fourth embodiment of the present application observed from the front with the crotch belt hidden; and Figure 19b is a schematic diagram of the crotch belt device of the fourth embodiment of the present application observed from the back with the crotch belt hidden. In this embodiment, the connecting portion 223 of the limiting member 22 is in the form of a through-hole. The crotch belt 23 enters the adjusting mechanism 300 through the connecting portion 223 in the form of a through-hole, and after bypassing the support rod 370 upward, it can be selectively engaged with the first adjusting rod 350 or the second adjusting rod 360 through the connection buckle 320. As shown in Figure 18and Figure 19b As shown, the connecting buckle 320 includes a threading opening 321, and the first end 231 of the crotch belt 23 can be connected to the threading opening 321. In addition, the connecting buckle 320 further includes a fastening portion 322. According to this embodiment, the cross-section of the fastening portion 322 is U-shaped to better fasten the first adjusting rod 350 or the second adjusting rod 360.

[0161] In Figure 19b In the illustrated embodiment, the support rod 370 straddles the left and right ends of the base 221 of the limiting member 22, that is, the support rod 370 is connected to both the left end and the right end of the base 221, while the first adjusting rod 350 and the second adjusting rod 360 only extend from the left end or the right end of the base 221. However, this is not limiting, and other connection forms are also feasible.

[0162] Based on the adjusting mechanism 300 of the fourth embodiment, as Figure 18 shown, the connecting buckle 320 engages the second adjusting rod 360. Since the crotch belt 23 bypasses the support rod 370, at this time, the entire crotch belt device 20 is in a lower position relative to the child safety seat 10, and the crotch belt device 20 in this position is suitable for use by children with a smaller body size or a younger age. When it is necessary to adjust the position of the crotch belt device 20, the connecting buckle 320 can be removed from the second adjusting rod 360 and then moved upward to engage the first adjusting rod 350. At this time, the crotch belt 23 extends more outward from the connecting portion 223, and the entire crotch belt device 20 is in a higher position relative to the child safety seat 10, and the crotch belt device 20 in this position is suitable for use by children with a larger body size or an older age.

[0163] The adjusting mechanism of this embodiment can also conveniently adjust the height of the limiting member 22 relative to the child safety seat to meet the different needs of children of different body sizes and ages and provide safety protection.

[0164] In the above-mentioned various embodiments, a part of the crotch belt 23 (hereinafter referred to as the first extension belt) is located between the limiting member 22 and the seat portion of the child carrier, and this 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 the second extension belt) is connected to the limiting member 22 and is located within the limiting member 22. By adjusting the position where the first end 231 of the crotch belt 23 is connected to the limiting member 22 by the adjusting mechanism, the first extension belt and the second extension belt are mutually transformed, and it is possible to adjust whether the material of the second extension belt of the crotch belt 23 increases or decreases, so as to control whether the material of the first extension belt decreases or increases, and further achieve 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.

[0165] In the above-mentioned various embodiments, the adjusting mechanism is used to adjust the height in the vertical direction of the position where the first end 231 of the crotch belt 23 is connected to the limiting member 22.

[0166] Next, refer to Figure 20 to describe the crotch belt device 20 according to the fifth embodiment of the present application. Figure 20 Figure 20 is a schematic view of the crotch belt device 20 according to the fifth embodiment of the present application. As shown in the figure, the crotch belt 23 connected to the limiting member 22 has a first end 231 and a second end 232 disposed opposite to the first end 231. The second end 232 of the crotch belt 23 is a fixed end and is fixed to the seat portion 16 of the child safety seat 10. The limiting 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 to the limiting member 22 can be adjusted through the first end 231 of the crotch belt 23.

[0167] As Figure 21 shown, the Figure 21 Figure 21 is a schematic view of an embodiment of the crotch belt 23 of the crotch belt device 20 according to the fifth embodiment of the present application. In this embodiment, the crotch belt 23 is a folded crotch belt 23. After folding, the two free ends of the crotch belt 23 are the two second ends 232 of the crotch belt 23. The two second ends 232 of the crotch belt 23 can be fixed to the seat portion 16 through mechanisms such as D-rings or bows. After folding, the folded portion of the crotch belt 23 is the first end 231 of the crotch belt 23. The first end 231 is an adjustment end, and the position where the crotch belt 23 is connected to the limiting member 22 can be adjusted through the first end 231 of the crotch belt 23. In addition, as Figure 21 shown in

[0168] In addition, as Figure 21As shown, the crotch strap device 20 is further provided with a stop portion 237. The stop portion 237 is connected to the crotch strap 23. The stop portion 237 shown in the figure is between one of the second ends 232 of the crotch strap 23 and the position where the crotch strap 23 is connected to the limiting member 22. This stop portion 237 can limit the extreme position where the crotch strap 23 is connected to the limiting member 22, that is, limit the lowest position of the limiting member 22. The setting position of the stop portion 237 is not limited to this. Stop members 237 can also be provided between the two second ends 232 of the crotch strap 23 and the position where the crotch strap 23 is connected to the limiting member 22. In this case, the two stop members 237 need to be arranged in alignment. Of course, the stop portion 237 can also be arranged between the first end 231 of the crotch strap 23 and the limiting member 22, and multiple stop portions 237 can also be provided between the first end 231 of the crotch strap 23 and the limiting member 22 and between the second end 232 of the crotch strap 23 and the limiting member 22.

[0169] Figure 22 Another embodiment of the crotch strap 23 of the crotch strap device 20 according to the fifth embodiment of the present application is shown. As Figure 22 shown, the crotch strap 23 includes a first strap 23a and a second strap 23b that are stacked on each other. The first ends 23a1 of the first strap 23a and 23b1 of the second strap 23b are both the second ends 232 of the crotch strap 23, that is, the fixed ends of the crotch strap 23. As Figure 22 shown, the second end 23a2 of the first strap 23a is folded back to form a first folded section 23c1, and the second end 23b2 of the second strap 23b is folded back to form a second folded section 23c2. The first folded section 23c1 and the second folded section 23c2 are stacked and connected to form the first end 232 of the crotch strap 23, that is, the adjustment end of the crotch strap 23. Of course, it is not limited to this. It is also possible that the second end 23a2 of the first strap 23a and the second end 23b2 of the second strap 23b are directly stacked and connected to form the first end 232 of the crotch strap 23.

[0170] Although not shown in the figure, in Figure 22 the shown embodiment and the embodiment in which the second end 23a2 of the first strap 23a and the second end 23b2 of the second strap 23b are directly stacked and connected to form the first end 231 of the crotch strap 23, an insert 235 can also be provided at the first end 231 of the crotch strap 23 to form a thickened first end 231. Further, a positioning portion 236 can also be provided to fix the insert 235, the second end 23a2 of the first strap 23a, and the second end 23b2 of the second strap 23b. Similarly, a stop portion 237 can be provided between the second end 232 of the crotch strap 23 and the limiting member 22 to limit the extreme position where the crotch strap 23 is connected to the limiting member 22.

[0171] Next, with reference to Figure 23 and Figure 24 the specific structure of the limiting member 22 according to the present application will be described, whereFigure 23 is a schematic diagram of the limiting member of the crotch belt device according to the fifth embodiment of the present application, which shows the front side of the limiting member. Figure 24 is a schematic diagram of the limiting member of the crotch belt device according to the fifth embodiment of the present application, which shows the back side of the limiting member. The limiting member 22 of this embodiment also includes a base portion 221 and a guard sheet portion 222. Based on Figure 23 and Figure 24 shown in the figure, the connecting member 24 is integrally formed with the lower end of the limiting member 22 and is connected to the base portion 221, but not limited thereto. The connecting member 24 and the limiting member 22 can also be connected to each other in other ways. The crotch belt 23 is connected to the limiting member 22 through the connecting member 24. The connecting member 24 is provided with a through hole 241. After the second end 232 of the crotch belt 23 passes through the through hole 241, it is fixed to the seat portion 16 of the child safety seat 10. According to one embodiment, the connecting member 24 is a D-ring, which is provided with two upper and lower through holes 241. The second end 232 of the crotch belt 23 passes through the two through holes 241 in sequence and then is fixed to the seat portion 16. 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 and avoid the inadvertent sliding of the crotch belt 23. The anti-slip teeth can be provided on the surface of the rod body between the two upper and lower through holes 241, or can also be provided at the edge of at least one of the two through holes 241.

[0172] It should be noted that Figures 20 - 26 in the illustrated embodiment, the crotch belt 23 has two second ends 232 fixed at two positions on the seat portion 16 of the child carrier. The two branch belts of the crotch belt 23 are arranged in an inverted V shape between the limiting member 22 and the seat portion 16 and extend from the limiting member 22 to the seat portion 16. At least two layers of the belt body of the crotch belt pass through the through hole 241 at the same time. However, it is not limited thereto. In other embodiments, the crotch belt 23 can also be provided with only one or more than two branch belts according to actual needs; for example, the two second ends 232 of the crotch belt 23 are fixed to the same position on the seat portion 16, and do not need to be respectively connected to two positions on the seat portion 16, or the crotch belt 23 has only one second end 232 and is connected to the seat portion 16.

[0173] It should be noted that the stop portion 237 can be made of a webbing material and can form a webbing knot (for example, a part of one webbing is stacked together and stitched and fixed to serve as the stop portion 237, and the other part of the webbing forms at least a part of the crotch belt 23; or the crotch belt 23 and the stop portion 237 are composed of at least two separate webbings and are connected by a sewing thread), and the stop portion 237 can also be made of materials such as plastic parts and metal sheets and are connected to the crotch belt 23 through a sewing thread or an adhesive.

[0174] Next, refer to Figure 25 and Figure 26 to describe the adjustment process of the crotch belt device 20 according to the fifth embodiment, whereinFigure 25 is a schematic view of the crotch strap device 20 of the fifth embodiment of the present application. This figure shows that the limiting member 22 is in a higher position. At this time, the length of the first end 231 of the crotch strap 23 pulled out is shorter; and Figure 26 is another schematic view of the crotch strap device 20 of the fifth embodiment of the present application; this figure shows that the limiting member 22 is in a lower position. At this time, the length of the first end 231 of the crotch strap 23 pulled out is longer. When it is necessary to adjust the limiting member 22 from Figure 25 the high position shown to Figure 26 the low position shown, only the first end 231 of the crotch strap 23 needs to be pulled downward. By pulling the first end 231 of the crotch strap 23, the connection position between the crotch strap 23 and the connecting member 24 can be changed, so that the height of the limiting member 22 can be changed in a more convenient manner.

[0175] In summary, in the technical solutions of the first to fifth embodiments of the present application, the connection position between the crotch strap 23 and the limiting member 22 is adjustable to adjust the height of the limiting member 22 relative to the seat portion 16. Compared with adjusting the effective length of the crotch strap 23 by adjusting the connection position between the seat portion 16 and the crotch strap 23, the technical solution of the present application is more conducive to the user to operate to adjust the effective length of the crotch strap 23, and further adjust the height of the limiting member 22.

[0176] Since the features of the present invention can be embodied in many forms without departing from the characteristics of the present invention, it should also be understood that the above embodiments are not limited to any details described above, unless otherwise specified, but should be broadly interpreted as being within the scope defined by the appended claims. Therefore, all modifications and variations that fall within the scope and boundaries of the claims or equivalent solutions of such scope and boundaries should be covered by the appended claims.

Claims

1. A hip belt device, characterized in that, include: Limiting parts; as well as A crotch strap, the crotch strap having a first end and a second end arranged opposite to the first end, the first end of the crotch strap being connected to the stopper, and the second end of the crotch strap being used to be fixed to the seat portion of the child carrier; An adjustment mechanism is provided on the limiting member, and the position where the first end of the crotch strap is connected to the limiting member can be adjusted by the adjustment mechanism.

2. The crotch strap device according to claim 1, characterized in that, The limiting member is provided with: a base having opposing first and second surfaces; A guard plate portion connected to the base portion and extending outward from the base portion, wherein a first surface of the base portion faces the guard plate portion, and a second surface of the base portion faces away from the guard plate portion; A limiting opening is defined between the base and the guard plate portion, and is used for allowing a safety belt to pass through and limit the safety belt.

3. The crotch strap device according to claim 2, characterized in that, The length of the guard plate portion in the longitudinal direction is smaller than the length of the base portion in the longitudinal direction.

4. The crotch strap device according to claim 1, wherein The lower end of the limiting member is provided with a connecting portion, and the first end of the crotch strap is connected to the limiting member through the connecting portion, and the connecting portion is a through hole located at the lower end of the limiting member.

5. The crotch belt device according to claim 1, characterized in that, 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.

6. The crotch belt device according to claim 1, characterized in that, The adjustment mechanism is used to adjust the height of the position where the first end of the crotch belt is connected to the limiting member in the up-down direction.

7. The crotch belt device according to claim 1, characterized in that, The regulating mechanism comprises: A sliding groove, arranged at the base of the limiting member; A sliding member connected to the first end of the crotch belt and received in the sliding groove, wherein the sliding member can slide up and down along the sliding groove; A plurality of first locking members, disposed on one of the base of the limiting member and the sliding member, and the plurality of first locking members are arranged at intervals along the up-down direction; a second locking member, disposed at the other of the base of the limiting member and the sliding member, the second locking member engaging with the corresponding first locking member as the sliding member and the sliding groove slide relative to each other; and An operating member is connected to the first locking member or the second locking member. When the operating member is operated, the first locking member and the second locking member are released to allow the sliding member to slide in an up-and-down direction relative to the sliding groove.

8. The crotch strap device according to claim 7, characterized in that, One of the first locking piece and the second locking piece has a locking hole, and the other of the first locking piece and the second locking piece has a protrusion.

9. The crotch belt device according to claim 7 or 8, characterized in that: The plurality of first locking members are arranged at the base of the limiting member, the second locking member is arranged 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 and down directions relative to the sliding groove.

10. The crotch belt device according to claim 9, characterized in that, The plurality of first locking members are disposed on left and right sides of the sliding slot along the up-down direction.

11. The crotch belt device according to claim 9, wherein The adjustment mechanism further includes an elastic member, which abuts against the second locking member to bias the second locking member to engage with the corresponding first locking member.

12. The crotch belt device according to claim 11, wherein, Two second locking members are provided, and two operating members are provided to respectively operate the two second locking members; The elastic member abuts between the two second locking members to bias the two second locking members into engagement with the corresponding first locking members.

13. The crotch belt device according to claim 9, characterized in that, The sliding member is plate-shaped and is provided with: a crotch strap through-hole provided at the lower end of the sliding member, a first end of the crotch strap passing through the crotch strap through-hole and being connected to the limiting member via the sliding member; and a side opening provided on at least one of the two side surfaces of the sliding member for the second locking member to pass through.

14. The crotch strap device according to claim 7, wherein, The sliding member is provided with: a first opening provided on the surface of the sliding member facing away from the sliding groove; a second opening provided on the surface of the sliding member facing the sliding groove; The operating member includes: an operating end exposed from the first opening; and a connecting end passing through the sliding member and exposed from the second opening.

15. The crotch belt device according to claim 14, characterized in that, The connecting end is in the form of an inverted buckle.

16. The crotch belt device according to claim 7, characterized in that, The sliding member is provided with: a first opening provided on the surface of the sliding member facing away from the sliding groove; and a second opening provided on 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 includes: a fixing opening aligned with the first opening and the second opening, and the connecting end of the operating member passes through the first opening and the fixing opening and is then exposed from the second opening; a protruding portion protruding from at least one of the two side surfaces of the sliding member.

17. The crotch belt device according to claim 7, characterized in that, Two first openings are provided on the surface of the sliding member facing away from the sliding groove, and one second opening is provided on the surface of the sliding member facing the sliding groove. The first opening and the second opening are used to limit the stroke of the operating member.

18. The crotch strap device according to claim 7, wherein a second surface of the base portion is provided with an open opening extending in the up and down direction, and the operating member enters the sliding groove through the open opening. The left and right sides of the open opening protrude towards each other relative to the left and right sides of the sliding groove to prevent the sliding member from detaching from the sliding groove through the open opening.

19. The crotch strap device according to claim 2, characterized in that, The adjusting mechanism includes: at least two limiting grooves provided at one of a first surface and a second surface of the base portion of the limiting member at intervals in the up and down direction; at least two adjusting holes correspondingly provided with the at least two limiting grooves; a communication groove communicating with each of the adjusting holes; and a buckle member capable of being installed in each of the limiting grooves, and a first end of the crotch strap is connected to the buckle member, and the crotch strap passes through the adjusting hole.

20. The crotch belt device according to claim 19, characterized in that, The buckle member is a D-ring.

21. The crotch belt device according to claim 19, characterized in that, The at least two limiting grooves include 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.

22. The crotch belt device according to claim 21, wherein, A protecting piece portion of the limiting member shields at least a part of the first limiting groove.

23. The crotch belt device according to claim 21, characterized in that, The second limiting groove is located at the lower end of the limiting member and has a lower opening.

24. The crotch belt device according to claim 17, wherein, The size of the adjusting hole is smaller than the size of the limiting groove.

25. The crotch belt device according to claim 1, characterized in that, The adjusting mechanism includes: at least two adjusting rods provided at intervals in the up and down direction on the base portion of the limiting member; A connecting buckle is connected to the first end of the crotch strap, and the connecting buckle can be switched to buckle on one of the at least two adjusting rods.

26. The crotch belt device according to claim 25, wherein, The adjusting mechanism further includes: A supporting rod is disposed at the base of the limiting member. The first end of the crotch strap bypasses the supporting rod and is connected to the adjusting rod through the connecting buckle.

27. The crotch belt device according to claim 25, wherein The connecting buckle has a buckling portion that buckles with the adjusting rod, and the cross-section of the buckling portion is U-shaped.

28. The crotch belt device according to claim 25, wherein, The supporting rod straddles the left and right ends of the base of the limiting member and is located above the adjusting rod.

29. A hip belt device, characterized in that, It includes: A limiting member; And A crotch strap, which is connected to the limiting member and has a first end and a second end opposite to the first end. The second end is fixed to the seat portion of the child carrier, and the connection position between the crotch strap and the limiting member is adjustable to adjust the height of the limiting member relative to the seat portion.

30. The crotch belt device according to claim 29, wherein The crotch strap device further includes an adjusting mechanism disposed on the limiting member. The first end of the crotch strap is connected to the limiting member through the adjusting mechanism, and the position where the first end of the crotch strap is connected to the limiting member can be adjusted through the adjusting mechanism.

31. The crotch belt device according to claim 29, wherein, The limiting member is connected between the first end and the second end of the crotch strap, and the position where the crotch strap is connected to the limiting member can be adjusted through the first end.

32. The crotch belt device according to claim 31, wherein, The crotch strap is a folded crotch strap. Both free ends of the folded crotch strap are the second ends of the crotch strap, and the folded portion is the first end of the crotch strap.

33. The crotch belt device according to claim 31, wherein, The crotch strap includes a first strap and a second strap that are stacked on each other. The first end of the first strap and the first end of the second strap are both the second ends of the crotch strap. The second end of the first strap and the second end of the second strap are stacked and connected to form the first end of the crotch strap.

34. The crotch strap device according to claim 31, wherein The crotch strap includes a first strap and a second strap that are stacked on each other. The first end of the first strap and the first end of the second strap are both the second ends of the crotch strap. The second end of the first strap is folded back to form a first folded section, and the second end of the second strap is folded back to form a second folded section. The first folded section and the second folded section are stacked and connected to form the first end of the crotch strap.

35. The crotch belt device according to claim 31, characterized in that, An insert is further provided at the first end of the crotch strap to thicken the first end.

36. The crotch belt device according to claim 31, characterized in that, The crotch strap device is further provided with a stop portion, and the stop portion is connected to the crotch strap to limit the extreme position where the crotch strap is connected to the limiting member.

37. The crotch belt device according to claim 36, wherein The stop portion is disposed between the first end of the crotch strap and the limiting member; and / or, the stop portion is disposed between the second end of the crotch strap and the limiting member.

38. The crotch belt device according to claim 31, wherein, The crotch strap is connected to the limiting member through a connecting member. The connecting member is provided with a through hole, and the second end of the crotch strap passes through the through hole and is fixed to the seat portion of the child carrier.

39. The crotch belt device according to claim 38, wherein, The connecting member is further provided with anti-slip teeth.

40. The crotch belt device according to claim 38, characterized in that, The connecting member is a D-ring buckle, and the D-ring buckle is integrally formed with the limiting member.

41. A child safety seat, comprising: A backrest portion and a seat portion, characterized in that the crotch strap device according to any one of claims 1-40 is connected to the child safety seat, and the second end of the crotch strap of the crotch strap device is fixed to the seat portion.

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