Backrest reinforcement mechanism

Abstract

The utility model relates to a backrest reinforcing mechanism which is fixedly arranged on the front side and / or the rear side of a backrest part of a child safety seat and used for reinforcing the strength of the backrest part for resisting impact deformation. The present disclosure also relates to a child safety seat, and a connection assembly for a child safety seat.

Description

[0001] This application is a divisional application of the invention patent application of Mingmen (China) Children's Products Co., Ltd. (application date: October 17, 2023, application number: 2023227895950, invention title: "Side impact protection mechanism, backrest reinforcement mechanism, connecting component and child safety seat").

[0002] Cross-reference of related applications

[0003] This application claims priority to Chinese Application No. 2022112847456, filed on October 17, 2022, entitled “Anti-misuse side impact protection mechanism and child safety seat”; Chinese Application No. 2022113390166, filed on October 28, 2022, entitled “Backrest reinforcement mechanism and child safety seat”; and Chinese Application No. 2023105076434, filed on May 6, 2023, entitled “Connection component for child safety seat and child safety seat”, all of which are incorporated herein by reference in their entirety. Technical Field

[0004] This disclosure relates to a backrest reinforcement mechanism, a connecting component, and a child safety seat. Background Technology

[0005] To enhance side-impact protection, some child safety seats have side impact protection blocks on the side of the seat. However, some of these side impact protection blocks need to be manually activated by the user, but users often forget to activate them, thus negating the side-impact protection function.

[0006] In addition, some existing child safety seats have insufficient backrest strength, which makes them prone to deformation. As a result, when impacted, the head may be displaced horizontally, causing injury. Utility Model Content

[0007] According to the present disclosure, a side impact protection mechanism is disposed on the side of the backrest of a child safety seat and positioned at an opening in the child safety seat through which a vehicle seat belt passes. The side impact protection mechanism includes a side impact protection block pivotally disposed on the side of the backrest and having an extended state and a retracted state. In the retracted state, the side impact protection block blocks the opening to prevent the vehicle seat belt from passing through. In the extended state, the side impact protection block extends laterally from the side of the backrest without blocking the opening, allowing the vehicle seat belt to pass through the opening.

[0008] In one embodiment, two forward-protruding side wings are provided on the two sides of the backrest, and the opening is defined by the side wings, or by the side wings and the backrest together.

[0009] In one embodiment, in the retracted state, the side impact protection block is located in the middle of the opening, dividing the opening into two non-connected upper and lower parts.

[0010] In one embodiment, the side impact protection mechanism has a fixed base pivotally connected to the side impact protection block, the fixed base being fixedly installed on the back side of the opening and having a pivot portion on which the side impact protection block is pivotally mounted.

[0011] In one embodiment, the side impact protection block includes: a housing pivotally disposed on the pivot portion; a toggle switch slidably mounted within the housing and exposed outside the housing for operation; a latching block slidably mounted within the housing and fixedly connected to the toggle switch, the latching block having an mounting end and an engaging end; and a spring disposed between the inner wall of the housing and the mounting end of the latching block, applying a force to push the engaging end of the latching block out of the housing.

[0012] In one embodiment, the pivot portion of the fixed base is provided with an outwardly open engaging hole. In the retracted state, the engaging end of the locking block abuts against the outer circumference of the pivot portion and retracts into the housing. In the extended state, the engaging end of the locking block extends out of the housing and engages into the engaging hole of the fixed base. Furthermore, by overcoming the force of the spring, pushing the knob can cause the locking block to retract into the housing, thereby disengaging from the engaging hole.

[0013] In one embodiment, a torsion spring is provided between the housing and the pivot portion, the torsion spring applying a force to pivot the side impact protection block to a retracted state.

[0014] According to the present disclosure, a child safety seat includes: a seat; a backrest disposed above the seat; two side wings disposed on the two sides of the backrest, located above the seat armrests; and a side impact protection mechanism according to the present disclosure disposed on the side of the backrest.

[0015] In one embodiment, a side impact protection mechanism is provided on each of the two back sides.

[0016] In one embodiment, the child safety seat has a Harness mode and a Booster mode. In Harness mode, when the side impact protection block is in the deployed state, the shoulder strap of the vehicle seat belt passes sequentially through the clamp located at the connection between the backrest and the side wing, and the upper part of the opening. The lap belt of the vehicle seat belt passes through the lower part of the opening, and then passes together with the shoulder strap through the lower part of the opening on the other side of the backrest to engage and secure with the seat belt buckle on the vehicle seat. In Booster mode, the shoulder strap of the vehicle seat belt passes sequentially through the guide located between the backrest and the headrest, and below one side armrest. The lap belt of the vehicle seat belt passes below the other side armrest, and then passes together with the shoulder strap through the lower part of the armrest on the other side to engage and secure with the seat belt buckle on the vehicle seat.

[0017] According to the present disclosure, a backrest reinforcement mechanism is detachably disposed on the front and / or rear side of the backrest of a child safety seat to enhance the strength of the backrest against deformation. The backrest reinforcement mechanism is a reinforcing plate detachably disposed on the front side of the backrest and also provides a buffer portion, and / or, the backrest reinforcement mechanism is a reinforcing bracket detachably disposed on the rear side of the backrest.

[0018] In one embodiment, the reinforcing bracket is fixed to the rear side of the backrest by fasteners, and the lower end of the reinforcing bracket is installed at the position where the backrest connects to the seat portion of the child safety seat, wherein the lower end of the reinforcing bracket is telescopic relative to its upper end.

[0019] In one embodiment, the reinforcing bracket includes an operating component for operating the lower end of the reinforcing bracket to extend or retract relative to its upper end.

[0020] In one embodiment, the reinforcing bracket includes at least one first rod and at least one second rod fixedly connected to the first rod, the first rod and / or the second rod being fixed to the rear side of the backrest by fasteners and having different extension directions; wherein, the reinforcing bracket further includes at least one locking rod slidably fitted onto the at least one second rod, and one end of the at least one locking rod extending beyond the fitted at least one second rod to be detachably installed at a corresponding position on the backrest.

[0021] In one embodiment, the reinforcement includes an upper first rod and a lower first rod arranged separately from each other; and a left second rod and a right second rod arranged separately from each other, the left second rod and the right second rod being fixed to the upper first rod and the lower first rod respectively, thereby forming a frame; the reinforcement bracket also includes two locking rods corresponding to the left second rod and the right second rod, the two locking rods being slidably sleeved on and extending out of the left second rod and the right second rod respectively, so as to be detachably installed to the backrest.

[0022] In one embodiment, the lower side of the backrest is provided with a connecting hook having a locking hole, and the locking rod is inserted into the corresponding locking hole.

[0023] In one embodiment, a return spring is provided between the locking rod and the sleeved second rod, the return spring being used to apply an outward force to the locking rod to extend it into the corresponding locking hole.

[0024] In one embodiment, the locking rod is sleeved inside the second rod; the second rod is provided with a sliding groove and a limiting hole located below the sliding groove, and a pin is inserted into the limiting hole to position the upper end of the return spring; the locking rod is provided with a spring receiving part and a connecting hole located above the spring receiving part, and the lower end of the return spring is fixed to the spring receiving part; and an operating component is inserted into the sliding groove and the connecting hole to guide the locking rod to slide up and down along the sliding groove.

[0025] In one embodiment, the lower end of the spring receiving part is provided with a limiting post, the reset spring is sleeved on the limiting post, and the upper end of the spring receiving part is provided with a clearance notch for avoiding the pin.

[0026] In one embodiment, the shape of the reinforcing plate matches the shape of the backing portion, and the reinforcing plate is provided with a through hole for fasteners to pass through and be fixed to the backing portion, and the through hole is located at the edge of the reinforcing plate.

[0027] In one embodiment, the reinforcing sheet has a body and an edge portion located around the body, and at least one buffer portion is formed within the body.

[0028] In one embodiment, the reinforcing sheet has a body, which is divided into four regions (up, down, left, and right) by a vertical reference line and a horizontal reference line, and each region is provided with one or more buffer parts.

[0029] In one embodiment, the lower edge of the reinforcing piece is further provided with a locking portion, the shape of which matches the connecting hook at the lower end of the backing portion, and the locking portion has an opening. A limiting rib is provided on the surface of the connecting hook facing the locking portion, and the limiting rib passes through the opening correspondingly provided on the locking portion to position the locking portion on the connecting hook.

[0030] In one embodiment, the reinforcing sheet has a body and a locking portion connected to the lower end of the body, and the wall thickness of the locking portion is greater than or equal to the wall thickness of the body.

[0031] In one embodiment, the engaging portion is integrally formed with the body, and the wall thickness of the reinforcing piece ranges from 1.2 mm to 1.8 mm.

[0032] In one embodiment, the engaging portion is fixed to the body by welding, and the wall thickness of the engaging portion is greater than the wall thickness of the body.

[0033] In one embodiment, the wall thickness of the body ranges from 1.2 mm to 1.5 mm, while the wall thickness of the engaging portion ranges from 1.6 mm to 2 mm.

[0034] In one embodiment, the reinforcing sheet has a body in which at least one of the buffer portions is formed, the area occupied by the buffer portions being distributed approximately symmetrically on the surface of the body.

[0035] According to the present disclosure, a child safety seat includes: a seat portion; a backrest portion disposed above the seat portion; and a backrest reinforcement mechanism according to the present disclosure.

[0036] In one embodiment, the child safety seat further includes: side wings, respectively disposed on both sides of the backrest and located above the seat armrest of the seat; and a headrest, disposed on the upper part of the backrest.

[0037] In one embodiment, a connecting hook with a locking hole is provided on the lower side of the backrest, and the backrest reinforcement mechanism is inserted into the corresponding locking hole to fix it to the backrest.

[0038] In one embodiment, the seat portion has recesses on both sides of its rear portion, and a locking rod is provided in the recess, the locking rod and the recess forming a locking opening; the backrest body of the backrest portion is located above the locking rod, and the connecting hook of the backrest portion extends downward from the lower side of the backrest body so that when the backrest portion is installed on the seat portion, the connecting hook can pass through the locking opening, bypass the locking rod, and the connecting hook extension located at the free end of the connecting hook can extend backward from the backrest portion.

[0039] In one embodiment, a limiting rib is provided on the surface of the connecting hook facing the seat portion to position the backrest reinforcement mechanism.

[0040] According to this disclosure, a connection assembly for a child safety seat is provided, the connection assembly comprising: a connector body, the connector body being connected to the shoulder strap and adjustment strap of the child safety seat; and a stop member, the stop member being detachably connected to the connector body and capable of covering the removal opening of the shoulder strap to prevent the shoulder strap from coming off.

[0041] In one embodiment, the stop member has a stop member body and an anti-detachment part, the stop member body is detachably connected to the connector body, and the anti-detachment part is fixedly engaged with the connector body to prevent it from detaching from the connector body.

[0042] In one embodiment, the connector body includes: a main body portion for connecting to an adjustment strap; and an extension portion connected to the main body portion, the extension portion and the main body portion defining a shoulder strap connection hole and a shoulder strap removal port, the shoulder strap connection hole for connecting to a shoulder strap, and the shoulder strap removal port communicating with the shoulder strap connection hole and for removing the shoulder strap.

[0043] In one embodiment, the main body is provided with an adjustment belt connection hole for connecting with an adjustment belt.

[0044] In one embodiment, the extension extends laterally relative to the body and has a protrusion at its end that defines a shoulder strap connection hole and a shoulder strap removal opening with the body.

[0045] In one embodiment, the anti-detachment part is configured as a hook, which is disposed on the end side of the stop body and detachably connected to the protrusion of the extension.

[0046] In one embodiment, the hook engages with the shoulder strap connection hole at the shoulder strap removal port and abuts against the mating surface of the protrusion facing the extension.

[0047] In one embodiment, the anti-detachment part is configured as a buckle, and the side surface of the end of the extension is provided with a corresponding snap-fit ​​recess, and the buckle and the snap-fit ​​recess are detachably snapped together.

[0048] In one embodiment, one of the latch and the latching recess is provided with a fixing protrusion, and the other is provided with a fixing recess that cooperates with the fixing protrusion.

[0049] In one embodiment, the anti-detachment portion is configured as a fixing protrusion protruding from the front and rear side walls of the stop body toward the opposite side wall, with a fixing recess at the end that engages with the fixing protrusion; and / or the anti-detachment portion is configured as a fixing recess recessing from the front and rear side walls of the stop body away from the opposite side wall, with a fixing protrusion at the end that engages with the fixing recess.

[0050] In one embodiment, the stop member has a recess at a position corresponding to the shoulder strap removal port, and the recess engages with the shoulder strap removal port.

[0051] In one embodiment, the stop body is fixedly connected to the main body of the connector body.

[0052] In one embodiment, the stop body extends longitudinally to both ends to form an anti-detachment portion.

[0053] In one embodiment, the stop body is connected to the main body via a fixing part.

[0054] In one embodiment, the stop body is pivotally connected to the main body of the connector body.

[0055] In one embodiment, the stop body extends longitudinally toward the free end to form an anti-detachment portion.

[0056] In one embodiment, the stop body is connected to the main body via a pivot coupling.

[0057] In one embodiment, the stop is configured as a sheet for connection to the connector body and for covering the disassembly port.

[0058] In one embodiment, the stop has an inner surface that engages with the connector body to prevent the stop from detaching from the connector body.

[0059] In one embodiment, the materials are joined by bonding or welding.

[0060] According to this disclosure, a child safety seat is also provided, comprising: a connecting component according to this disclosure; a seat; a backrest connected to the seat; an adjustment strap connected to the connecting component and the seat; and a shoulder strap connected to the connecting component and the backrest.

[0061] In one embodiment, the child safety seat has a receiving recess for accommodating the connecting components.

[0062] In one embodiment, the receiving recess is provided in the rear region of the seat. Attached Figure Description

[0063] Figure 1 The front perspective view of the child safety seat according to the first aspect of this disclosure shows that the side impact protection block is in a retracted state;

[0064] Figure 2 The first aspect view of the child safety seat according to the present disclosure shows a side impact protection block in an deployed state.

[0065] Figure 3The rear perspective view of the child safety seat according to the first aspect of this disclosure shows that the side impact protection block is in a retracted state;

[0066] Figure 4 The image shows a rear-view perspective view of a child safety seat according to the first aspect of this disclosure, in which a side impact protection block is in an deployed state;

[0067] Figure 5 The side view of the child safety seat according to the first aspect of this disclosure shows that the side impact protection block is in a retracted state;

[0068] Figure 6 The side view of the child safety seat according to the first aspect of this disclosure shows that one side impact protection block is in an deployed state and the other side impact protection block is in a retracted state.

[0069] Figure 7A , Figure 7B , Figure 7C It is a perspective view of the side-impact protection mechanism according to the first aspect of this disclosure, and Figure 7D , Figure 7E , Figure 7F This is a side view of the side impact protection mechanism according to this disclosure;

[0070] Figure 8 It is a cross-sectional view through the side impact protection mechanism according to the first aspect of this disclosure, wherein the side impact protection block is in a retracted state;

[0071] Figure 9 It is a cross-sectional view through the side impact protection mechanism according to the first aspect of this disclosure, wherein the side impact protection block is in an intermediate position between a retracted state and an extended state;

[0072] Figure 10 It is a cross-sectional view through the side impact protection mechanism according to the first aspect of this disclosure, wherein the side impact protection block is in the deployed state;

[0073] Figure 11 This is a front perspective view of a child safety seat according to an embodiment of the second aspect of the present disclosure, wherein the front of the backrest has a front backrest reinforcement mechanism;

[0074] Figure 12 This is a rear perspective view of the backrest of a child safety seat according to an embodiment of the second aspect of this disclosure, wherein the backrest does not have a cover plate on its back.

[0075] Figure 13 This is a rear perspective view of the backrest of a child safety seat according to an embodiment of the second aspect of the present disclosure, wherein the backrest has a cover plate on its rear side;

[0076] Figure 14It is a seating portion according to an embodiment of the second aspect of this disclosure;

[0077] Figure 15 This is a front view of a front back reinforcement mechanism according to an embodiment of the second aspect of this disclosure;

[0078] Figure 16 yes Figure 15 The rear view of the front back reinforcement mechanism shown;

[0079] Figure 17 This is a front view of a front back reinforcement mechanism according to another embodiment of the second aspect of this disclosure;

[0080] Figure 18 This is a front view of a front back reinforcement mechanism according to another embodiment of the second aspect of this disclosure;

[0081] Figure 19 This is a front view of a front back reinforcement mechanism according to another embodiment of the second aspect of this disclosure;

[0082] Figure 20 This is a front view of a front back reinforcement mechanism according to another embodiment of the second aspect of this disclosure;

[0083] Figure 21 This is a front perspective view of the backrest of a child safety seat according to another embodiment of the second aspect of this disclosure;

[0084] Figure 22 This is a child safety seat according to another embodiment of the second aspect of this disclosure. Figure 11 An exploded perspective view of the backrest and the front backrest reinforcement mechanism shown.

[0085] Figure 23 This is a front view of a front back reinforcement mechanism according to another embodiment of the second aspect of this disclosure;

[0086] Figure 24 This is a front perspective view of a child safety seat according to an embodiment of the second aspect of this disclosure, wherein the front of the backrest has a different... Figure 1 The front back reinforcement mechanism is shown.

[0087] Figure 25 yes Figure 24 Front view of the front back reinforcement mechanism used in the design;

[0088] Figure 26 yes Figure 24 Rear view of the front back reinforcement mechanism used in the design;

[0089] Figure 27This is a rear perspective view of the backrest of a child safety seat according to an embodiment of the second aspect of the present disclosure, wherein the backrest has a cover plate on its rear side;

[0090] Figure 28 This is a perspective view of a rear back reinforcement mechanism according to an embodiment of the second aspect of this disclosure;

[0091] Figure 29 yes Figure 28 The diagram shows a perspective view of the rear backrest reinforcement mechanism, in which a second rod has been removed to show the internal structure;

[0092] Figure 30 This is a front view of the locking lever of the rear back reinforcement mechanism according to the second aspect of this disclosure;

[0093] Figure 31A and Figure 31B Partial exploded perspective views of the rear back reinforcement mechanism according to the second aspect of this disclosure are shown in different forms;

[0094] Figure 32 This is a perspective view of a rear back reinforcement mechanism according to another embodiment of the second aspect of this disclosure;

[0095] Figure 33 This is a rear perspective view of a child safety seat according to an embodiment of the second aspect of this disclosure, wherein the backrest has a rear backrest reinforcement mechanism on its back side.

[0096] Figure 34 yes Figure 33 Another angle of the rear 3D view of a child safety seat;

[0097] Figure 35 Showing Figure 34 The rear backrest reinforcement mechanism of the child safety seat is in the unlocked state during installation or removal;

[0098] Figure 36 A child safety seat according to a third aspect of this disclosure is shown;

[0099] Figure 37 A side view of a connection component according to a first embodiment of a third aspect of this disclosure is shown;

[0100] Figure 38 A perspective view of a connection component according to a first embodiment of a third aspect of this disclosure is shown;

[0101] Figure 39 An exploded perspective view of a connection component according to a first embodiment of a third aspect of this disclosure is shown;

[0102] Figure 40A perspective view of a stop member according to a first embodiment of a third aspect of this disclosure is shown;

[0103] Figure 41 A front perspective view of a connection component according to a second embodiment of the third aspect of this disclosure is shown;

[0104] Figure 42 A side perspective view of a connection assembly according to a second embodiment of the third aspect of this disclosure is shown;

[0105] Figure 43 A front perspective view of a connection assembly according to a third embodiment of the third aspect of this disclosure is shown;

[0106] Figure 44 A side perspective view of a connection assembly according to a third embodiment of the third aspect of this disclosure is shown;

[0107] Figure 45 A front perspective view of a connection assembly according to a third embodiment of a third aspect of this disclosure is shown, with the stop member open;

[0108] Figure 46 A side perspective view of a connection assembly according to a third embodiment of a third aspect of this disclosure is shown, with the stop member open;

[0109] Figure 47 A partial cross-sectional view of a connection assembly according to a third embodiment of the third aspect of this disclosure is shown;

[0110] Figure 48 An exploded perspective view of a connection component according to a third embodiment of the third aspect of this disclosure is shown;

[0111] Figure 49 A perspective view of a connection assembly according to a fourth embodiment of a third aspect of this disclosure is shown, with the stop member open;

[0112] Figure 50 A side view of a connection component according to a fifth embodiment of the third aspect of this disclosure is shown;

[0113] Figure 51 An exploded perspective view of a connection component according to a fifth embodiment of the third aspect of this disclosure is shown;

[0114] Figure 52 A side view of a connection component according to a sixth embodiment of the third aspect of this disclosure is shown;

[0115] Figure 53 An exploded perspective view of a connection component according to a sixth embodiment of the third aspect of this disclosure is shown;

[0116] Figure 54 A side view of a connection assembly according to a seventh embodiment of the third aspect of this disclosure is shown; and

[0117] Figure 55 An exploded perspective view of a connection component according to a seventh embodiment of the third aspect of this disclosure is shown.

[0118] The reference numerals in the attached figures are explained as follows:

[0119] 1. 1A Child Safety Seat

[0120] 1100 Side Impact Protection Mechanism

[0121] 1110 Side Impact Protection Block

[0122] 1111 Toggle

[0123] 1112 Spring

[0124] 1113 Card Block

[0125] 11131 Installation Terminal

[0126] 11132 Card-connecting end

[0127] 1114 Casing

[0128] 1120 Fixture

[0129] 1121 Mounting Hole

[0130] 1122 locking hole

[0131] 1123 Pivot Section

[0132] 1200 Flanking section (also known as "flank section")

[0133] 1300 Backrest (also known as "backrest section")

[0134] 1400 Opening for the vehicle's seatbelt to pass through

[0135] 1500 Seats (also known as "Seating Section" or "Seat Section")

[0136] 1510 Seat armrests (also known as "seat armrests" or "armrests")

[0137] 1600 clamp

[0138] 1700 Bootloader

[0139] 1800 headrest (also known as "headrest" or "head support")

[0140] 2100, 2100A, 2100B, 2100C, 2100D, 2100E, 2100F Front Backrest Reinforcement Mechanism (Reinforcement Plate)

[0141] 2110, 2110A, 2110B, 2110C, 2110D, 2110E, 2110F body

[0142] Buffer sections 2111, 2111A, 2111D, 2111E, and 2111F

[0143] 21111B, 21111F First Buffer Section

[0144] 21112B, 21112F Second Buffer Section

[0145] 21113B, 21113C Third Buffer Section

[0146] 2112, 2112A, 2112B, 2112C, 2112D, 2112E convex part

[0147] 21121F First convex part

[0148] 21122F Second convex part

[0149] 21123F The third convex part

[0150] 2113, 2113A, 2113B Pre-positioning holes

[0151] 2120, 2120A, 2120B, 2120C, 2120D, 2120E, 2120F Connecting Parts

[0152] 2121, 2121A, 2121B, 2121C, 2121D, 2121E, 2121F Openings

[0153] 2122F Welding Section

[0154] Edges of 2130, 2130A, 2130B, 2130C, 2130D, 2130E, and 2130F

[0155] 2131, 2131A, 2131B, 2131C, 2131D, 2131E, 2131F perforations

[0156] 2140 wing

[0157] 2200 flank (also known as "flank")

[0158] 2210 side-wing foam

[0159] 2300, 2300A Backrest (also referred to as "backrest")

[0160] 2310 and 2310A are backed by the main body.

[0161] 2320, 2320A connecting hooks

[0162] 2321 Limiting rib

[0163] 2322, 2322A Connecting hook extension

[0164] 2323 Locking Protrusion

[0165] 2323A Locking Hole

[0166] 2330 Fixing Hole

[0167] 2340, 2340A cover plates

[0168] 2350 Joint

[0169] 2360 Positioning Department

[0170] 2400 Opening for the vehicle seat belt to pass through

[0171] 2500 Seating Section (also known as "Seats, Seats")

[0172] 2510 Seating armrest (also known as "seat armrest" or "armrest")

[0173] 2520 Cup Holder

[0174] 2530 Depression

[0175] 2540 lever

[0176] 2550 checkpoint

[0177] 2600 bootloader

[0178] 2700 clamp

[0179] 2800 Rear Backrest Reinforcement Mechanism

[0180] 2810 First shot

[0181] 2820 Second shot

[0182] 2830 First shot

[0183] 2840 Locking lever

[0184] 2841 Connection hole (e.g., screw connection hole)

[0185] 2842 Spring Receiving Section

[0186] 28421 Avoidance Gap

[0187] 28422 Limiting Post

[0188] 2850 Slide

[0189] 2860 Slider (e.g., screw)

[0190] h1 Limiting hole

[0191] 2870 Pin

[0192] 2880 return spring

[0193] 2890 Linkage Rod

[0194] 2900 Headrest (also known as "head pillow" or "head support")

[0195] 3100 Connector Body

[0196] 3110 Main Body

[0197] 3111 Adjustable belt with connecting hole

[0198] 3112 Stop component connecting hole

[0199] 3113 Fixing part

[0200] 3120 Extension

[0201] 3121 Shoulder strap connection hole

[0202] 3122 Detachment port, shoulder strap detachment port

[0203] 3123 end

[0204] 3124 Protrusion

[0205] 3125 snap-in recess

[0206] 3126 Fixed concave

[0207] Stop components for 3130A, 3130B, 3130C, 3130D, 3130E, 3130F, and 3130G

[0208] 3131A, 3131B, 3131C, 3131D, 3131E, 3131F stop body, 3131G outer surface

[0209] Anti-slip parts of 3132A, 3132B, 3132C, and 3132F; inner surface of 3132G.

[0210] 3133B, 3133C, 3133D, 3133F concave part

[0211] 3134B, 3134C, 3134D, 3134E, 3134F fixed convex

[0212] 3135B and 3135C pivot couplings

[0213] 3136 Fixing Part

[0214] 3200 Seating Section (also known as "Seating Section, Seat")

[0215] 3210 A-LOCK

[0216] 3220 Recess

[0217] 3300 Backrest (also known as "backrest")

[0218] 3400 Headrest (also known as "headrest or head pillow")

[0219] 3500 Adjustment Belt

[0220] 3600 shoulder strap

[0221] 3700 Flanking section (also known as "flank")

[0222] 3800 opening

[0223] 3900 armrest (also known as "seat armrest" or "seat armrest") Detailed Implementation

[0224] While this invention has been illustrated and described with reference to specific embodiments, it should not be limited to the details shown. Rather, various modifications to these details may be made within the scope of equivalents of the claims without departing from the invention.

[0225] The descriptions of directions such as "front," "back," "up," and "down" used in this document are for ease of understanding only. This utility model is not limited to these directions but can be adjusted according to actual circumstances. Although this disclosure has been described with reference to exemplary embodiments, the terminology used is illustrative and exemplary, not restrictive.

[0226] In the first aspect of this disclosure, reference is made to Figures 1 to 6 The present disclosure describes a child safety seat 1 including a side impact protection mechanism 1100, side wings 1200, a backrest 1300, a seat 1500, and a headrest 1800. Generally, the child safety seat 1 has a Harness mode and a Booster mode regarding the seatbelt fastening path, which is described in detail below with reference to embodiments.

[0227] More specifically, Figure 1 , Figure 2 A front perspective view of the child safety seat 1 disclosed herein is shown, wherein, Figure 1The side impact protection blocks 1110 of the two side impact protection mechanisms 1100 are in the retracted state, while Figure 2 One of the side impact protection blocks 1110 is in the deployed state.

[0228] According to this embodiment, the child safety seat 1 includes a seat 1500 with armrests 1510 for a child to ride in. A backrest 1300 is provided above the seat 1500 and can be connected to the seat 1500. A headrest 1800 is located on the upper part of the backrest 1300 and can move vertically relative to the backrest 1300. The headrest 1800 includes a headrest backrest and headrest side wings. A guide 1700 is provided at the backrest 1300 between the headrest side wings and the side wings 1200 of the child safety seat 1. The guide 1700 is located at the lower end of the headrest side wings and is used to guide the shoulder strap of the vehicle seat belt (not shown) in the Booster mode of the child safety seat 1. In this embodiment, a guide 1700 is provided on each side of the child safety seat 1, thus enabling the child safety seat 1 to be installed on both sides of the rear seat of the car, facilitating installation and use.

[0229] A side wing 1200 is provided on each of the two sides of the backrest 1300, for example, located above the armrest 1510 of the seat 1500. The side wings 1200 extend forward from the two sides of the backrest 1300, defining an opening 1400. In this embodiment, the side wings 1200 and the sides of the backrest 1300 together define the opening 1400. At the connection between the backrest 1300 and the side wings 1200, a clamp 1600 is provided on each of the two sides of the upper back of the backrest 1300 for clamping the shoulder strap of the vehicle seat belt in Harness mode.

[0230] The child safety seat 1 according to this disclosure includes a side impact protection mechanism 1100. In this embodiment, two side impact protection mechanisms 1100 are respectively disposed on two sides of the backrest 1300. Each side impact protection mechanism 1100 according to this disclosure has a side impact protection block 1110 and a fixing seat 1120. The fixing seat 1120 is pivotally connected to the side impact protection block 1110 and fixedly mounted on the backrest side of the opening 1400 by two screws on each side. The side impact protection block 1110 has an extended state and a retracted state. Figure 1 In the retracted state shown, the side impact protection block 1110 is located in the middle of the opening 1400, dividing the opening 1400 into upper and lower parts. These two parts are preferably not connected to each other; that is, after the side impact protection block 1110 is retracted, the side impact protection block 1110 is essentially in contact with the side wing 1200. Figure 2In the unfolded state shown, the side impact protection block 1100 extends laterally from the side of the backrest 1300 to enhance the side impact protection effect of the child safety seat 1. In this case, the side impact protection block 1110 does not block the opening 1400, allowing the vehicle seat belt to be properly threaded through the opening 1400.

[0231] Generally, the vehicle seat belt for a child safety seat 1 has a shoulder strap and a lap belt. According to the binding path of the vehicle seat belt of this disclosure, in the Harness mode, when the side impact protection block 1110 near the door is in the deployed state, the shoulder strap of the vehicle seat belt can pass sequentially through the clamp 1600 located at the connection between the backrest 1300 and the side wing 1200 near the door, and the upper part of the opening 1400 near the door. The lap belt of the vehicle seat belt passes through the lower part of the opening 1400 near the door, and then passes together with the shoulder strap through the lower part of the opening 1400 on the backrest 1300 away from the door, so as to engage and secure with the seat belt buckle on the car seat. In the Booster mode, the shoulder strap of the vehicle seat belt passes sequentially under the guide 1700 located between the backrest 1300 and the headrest 1800 on the side near the door, and under the armrest 1510 on the side away from the door. The lap belt of the vehicle seat belt passes under the armrest 1510 on the side near the door, and then passes under the armrest 1510 on the side away from the door together with the shoulder strap, so as to engage and fix with the seat belt buckle on the car seat.

[0232] refer to Figure 1 As shown, in Harness mode, the shoulder strap of the vehicle seat belt must pass through the clamp 1600 and then through the two openings 1400, while the lap belt only passes through the two openings. This means that when the side impact protection block 1110 is not open, it obstructs the view at the opening 1400, preventing the vehicle seat belt from being properly installed and secured. In this case, the side impact protection block 1110 near the door must be actively opened before the vehicle seat belt, or adult seat belt, can be installed, thus achieving the active anti-misuse function of the side impact protection mechanism 1100. In other words, according to this disclosure, the side impact protection mechanism 1100 is located on the back side to divide the opening 1400 through which the vehicle seat belt passes. That is, when the side impact protection block 1110 is in the retracted state, it abuts or adheres to the side wing 1200, making it easy for the user to notice that the side impact protection block 1110 is in the retracted state and cannot provide side impact protection.

[0233] like Figure 2As shown, a side impact protection block 1110 is in an deployed state. This block extends laterally from the side of the backrest 1300 without obstructing the opening 1400, allowing the vehicle seatbelt to be threaded through the opening 1400. Simultaneously, the deployed side impact protection block 1110 serves to prevent side impacts.

[0234] Figure 3 A rear perspective view of the child safety seat 1 according to this disclosure is shown, wherein the side impact protection block 1110 is in a retracted state. Figure 1 Accordingly, Figure 3 The left-side side impact protection block 1110 is fixedly installed on the back side and divides the opening 1400 into upper and lower parts. When the side impact protection block 1110 is in the retracted state, it obstructs the opening 1400, making it impossible for the vehicle seat belt to be installed and fixed correctly. Figure 3 The details also show that at the connection between the backrest 1300 and the side wing 1200, a clamp 1600 is provided on both sides of the upper back of the backrest 1300, so that the child safety seat 1 can be installed on both sides of the rear seat of the car, which is convenient for installation and use.

[0235] Figure 4 This is a perspective view of the rear lower part of the child safety seat 1 disclosed herein. (And...) Figure 2 Accordingly, Figure 4 The side impact protection block 1110 on the left is in the deployed state, which allows for the unobstructed and correct installation of the vehicle's seat belt.

[0236] Figure 5 , Figure 6 Based on the side view of the child safety seat 1 disclosed herein, wherein, Figure 5 The side impact protection block 1110 is in the retracted state, while... Figure 6 In the middle, one side impact protection block 1110 is in the deployed state, and the other side impact protection block 1110 is in the retracted state. In the side view, the fixing seat 1120 of the side impact protection mechanism 1100 is fixed to the side of the backrest 1300 at approximately the middle of the backrest 1300, and the fixing seat 1120 is particularly engaged between the front and rear sides of the backrest 1300 on the backrest side.

[0237] Figure 7 to Figure 10 The side-impact protection mechanism 1100 of this disclosure is shown, wherein, Figure 7A , Figure 7B , Figure 7C This is a perspective view of the side impact protection mechanism 1100 disclosed herein. Figure 7D , Figure 7E , Figure 7F This is a side view of the side impact protection mechanism 1100 according to this disclosure. Figure 8The image shows a cross-sectional view through the side impact protection mechanism 1100 according to this disclosure, wherein the side impact protection block 1110 is in a retracted state. Figure 9 The diagram shows a cross-sectional view through the side impact protection mechanism 1100 according to this disclosure, wherein the side impact protection block 1110 is in an intermediate position between a retracted state and an extended state. Figure 10 It is a cross-sectional view through the side impact protection mechanism 1100 according to the present disclosure, wherein the side impact protection block 1110 is in the deployed state.

[0238] Figure 7A , Figure 7B , Figure 7C The 3D diagram shown and Figure 7D , Figure 7E , Figure 7F The side views shown illustrate the side impact protection mechanism 1100 according to this disclosure from different perspectives. In this embodiment, the side impact protection mechanism 1100 has the side impact protection block 1110 and a mounting base 1120, the mounting base 1120 being pivotally connected to the side impact protection block 1110. Furthermore, as shown, for snap-fit ​​fixation to the front and rear sides of the backrest 1300, the mounting base 1120 has corresponding mounting holes 1121, such as screw holes, with two screw holes on each side for screws to pass through for connection and fixation to the backrest 1300.

[0239] Figure 8 , Figure 9 , Figure 10 An exemplary specific structure of the side impact protection mechanism 1100 is shown in cross-sectional view, and the retracted states of the side impact protection block 1110 are shown sequentially. Figure 8 ), is in the middle position between the folded state and the unfolded state ( Figure 9 ), and unfolded state ( Figure 10 In this embodiment, the housing 1114 of the side impact protection block 1110 is pivotally mounted on the pivot portion 1123 of the fixing seat 1120. The side impact protection block 1110 has a toggle button 1111 on its inner side facing the child safety seat 1, which is slidably mounted within the housing 1114 and exposed outside the housing 1114 for operation. A locking block 1113 and a spring 1112 are also provided within the housing 1114. The locking block 1113 is slidable within the housing 1114 and fixedly connected to the toggle switch 1111. It has a mounting end 11131 away from the fixing base 1120 and a locking end 11132 close to the fixing base 1120. A spring 1112 disposed between the inner wall of the housing 1114 and the mounting end 11131 of the locking block 1113 cooperates with the mounting end 11131 to apply a force to push the locking end 11132 of the locking block 1113 out of the housing 1114.

[0240] An outwardly opening engaging hole 1122 is provided on the pivot portion 1123 of the fixed base 1120. In the retracted state ( Figure 8 ) and the middle position ( Figure 9 In the unfolded state, the engaging end 11132 of the locking block 1113 abuts against the outer circumference of the pivot portion 1123 and retracts into the housing 1114. Figure 10 With the help of the force of the spring 1112, the engaging end 11132 of the locking block 1113 extends out from the housing 1114 and engages with the engaging hole 1122 of the fixing seat 1120, so that the side impact protection block 1110 is always kept in the unfolded state.

[0241] To retract the side impact protection block 1110 from its deployed state to its retracted state, the user can push the toggle switch 1111 to overcome the force of the spring 1112. This toggle switch causes the locking block 1113 to retract into the housing 1114, disengaging it from the locking hole 1122. A torsion spring (not shown) is provided between the housing 1114 and the pivoting part 1123. This torsion spring applies a force to pivot the side impact protection block 1110 to its retracted state and holds the side impact protection block 1110 in this retracted state.

[0242] In summary, by placing the side impact protection block 1110 on the side of the backrest, and when the side impact protection block 1110 is in the retracted state, it abuts against the side wing 1200 to separate the opening 1400 between the side wing 1200 and the backrest 1300, the vehicle seat belt cannot pass through the opening correctly if the side impact protection block 1110 is not opened when the vehicle seat belt is being installed. This serves as a reminder to the user to open the side impact protection block 1110 to ensure the side impact protection function.

[0243] This disclosure resolves the technical problem of users forgetting to turn on the side impact protection block 1110.

[0244] By actively opening the side impact protection block 1110, the vehicle seat belt can be correctly installed, thus achieving the function of actively preventing misuse and improving the safety of the child safety seat 1, providing better protection for children.

[0245] In a second aspect, this disclosure enhances the strength of the backrest and reduces its deformation by providing a backrest reinforcement mechanism on the backrest of a child safety seat, thereby reducing horizontal head displacement upon impact. The reinforcement mechanism can be a sheet or plate-like structure, its shape matching the shape of the backrest, and is fixed to the backrest by screws. Alternatively, the reinforcement mechanism can be a reinforcement bracket located on the back of the backrest with its lower end movably inserted into the backrest to limit its movement, thereby reducing the deformation of the backrest and further reducing horizontal head displacement upon impact.

[0246] When the reinforcing mechanism has a sheet-like or plate-like structure, it can be a metal plate or sheet, and can have various shapes, etc., which are not limited by this utility model. In addition, through the specific structure of the reinforcing bracket and the limiting structure between it and the backrest, this disclosure solves the problem of excessive horizontal displacement of the head, especially in Harness mode.

[0247] Figure 11 This is a front perspective view of a child safety seat 1 according to an embodiment of the present disclosure. The child safety seat 1 includes a backrest portion 2300, a seat portion 2500, and a backrest reinforcement mechanism 2100. In this embodiment, the front of the backrest portion 2300 has a front backrest reinforcement mechanism 2100.

[0248] According to this embodiment, the seat portion 2500 includes a seat armrest 2510 and is used for seating a child. The seat portion 2500 also has a cup holder 2520 on its side. A backrest portion 2300 is disposed above the seat portion 2500 and is detachably connected to the seat portion 2500. In another embodiment, the backrest portion 2300 is fixedly connected to the seat portion 2500.

[0249] The child safety seat 1 also includes a headrest 2900, which is disposed on the upper part of the backrest 2300 and is movable up and down relative to the backrest 2300. A guide 2600 is disposed between the headrest 2900 and the backrest 2300, the guide 2600 being used to guide the shoulder strap of the vehicle seat belt (not shown) in the Booster mode of the child safety seat 1.

[0250] Side wings 2200 with side wing foam 2210 are respectively provided on both sides of the backrest 2300, and the side wings 2200 are located, for example, above the seat armrest 2510 of the seat 2500. The side wings 2200 protrude forward from both sides of the backrest 2300, defining an opening 2400 for the vehicle seat belt to pass through. In this embodiment, the side wings 2200 and the sides of the backrest 2300 together define the opening 2400. At the connection between the backrest 2300 and the side wings 2200, a clamp 2700 is provided on both sides of the upper back of the backrest 2300 for clamping the shoulder strap of the vehicle seat belt in Harness mode.

[0251] In Harness mode, the shoulder strap of the vehicle seat belt passes sequentially through the clamp 2700 located at the connection between the backrest 2300 and the side wing 2200 of the child safety seat 1, and the upper part of the opening 2400 near the door on the backrest 2300 for the vehicle seat belt to pass through. The lap belt of the vehicle seat belt passes through the lower part of the opening 2400 near the door, and then passes together with the shoulder strap through the lower part of the opening 2400 near the backrest on the side away from the door, to engage and secure with the seat belt buckle on the vehicle seat. In Booster mode, the shoulder strap of the vehicle seat belt passes sequentially through the guide 2600 located between the backrest 2300 and the headrest 2900, and below the armrest 2510 on the side away from the door. The lap belt of the vehicle seat belt passes below the armrest 2510 on the side near the door, and then passes together with the shoulder strap through the lower part of the armrest 2510 on the side away from the door, to engage and secure with the seat belt buckle on the vehicle seat.

[0252] A front backrest reinforcement mechanism 2100 is fixedly provided at the front of the backrest 2300 to ensure strength and limit the backrest 2300, thereby reducing the deformation of the backrest 2300 upon impact and improving the horizontal displacement of the head. The front backrest reinforcement mechanism 2100 will be explained in detail below with reference to the accompanying drawings.

[0253] Figure 12This is a rear perspective view of the backrest portion 2300 of a child safety seat 1 according to an embodiment of the present disclosure. In this embodiment, a backrest-side fixing hole 2330 and a connecting hook 2320 connected to the lower side of the backrest body 2310 can be seen on the backrest body 2300. A connecting portion 2350 is provided on the backrest body 2310 and the connecting hook 2320. The connecting portion 2350 can have different forms, such as a clamping portion or a protrusion. A limiting rib 2321 protruding towards the front of the backrest portion is provided at the connecting hook 2320. This limiting rib 2321 cooperates with an opening provided on the front backrest reinforcement mechanism 2100 to limit or pre-position the front backrest reinforcement mechanism 2100. A positioning portion 2360, such as a positioning protrusion protruding towards the front of the backrest portion, is also provided on the backrest body 2310 for positioning the front backrest reinforcement mechanism 2100.

[0254] Figure 13 This is a rear perspective view of the backrest 2300 of a child safety seat 1 according to an embodiment of the present disclosure. Figure 12 The view is different; the backrest 2300 has a cover plate 2340 on its back. Utilizing the corresponding... Figure 12 The corresponding device for the joint 2350 shown in the figure has a cover plate 2340 covering the joint 2350 and exposing the back-side fixing hole 2330. In addition, at the connecting hook 2320, the corresponding cover plate 2340 is fixedly connected to the front half of the connecting hook 2320 to close and form a complete connecting hook 2320.

[0255] Figure 14 This is a seat portion 2500 according to an embodiment of the present disclosure. The seat portion 2500 has, for example, a cup holder 2520 on its front side, and two seat armrests 2510 on each side of the seat. One end of each armrest 2510 is connected to the seat portion 2500, and the other end extends forward towards the seat. In this embodiment, the seat portion 2500 has two recesses 2530 on its rear side, and a retaining rod 2540 is provided in each recess 2530. The retaining rod 2540 and the recess 2530 form a latch 2550, which is used for insertion and fixation of the backrest body (described in detail below with reference to the accompanying drawings).

[0256] Figure 15 This is a front view of a front backrest reinforcement mechanism 2100 according to an embodiment of the present disclosure. In the illustrated embodiment, the front backrest reinforcement mechanism 2100 is fixedly disposed on the front side of the backrest portion 2300 (see figure). Figure 11The front backrest reinforcement mechanism 2100 is used to ensure the strength of the backrest. In this embodiment, the front backrest reinforcement mechanism 2100 is designed as a reinforcing plate, such as a reinforcing iron plate. However, the material of the reinforcing plate can also be other metals, such as stainless steel, aluminum alloy, etc. The front backrest reinforcement mechanism 2100 is detachably mounted on the backrest 2300. For example, the shape of the reinforcing plate matches the shape of the backrest 2300, and the reinforcing plate is provided with a through hole 2131 for fasteners to pass through and be fixed to the backrest 2300 via a fixing hole 2330.

[0257] Furthermore, fasteners, such as screws, can be used to pass through the through holes 2131 on the front backrest reinforcement mechanism 2100 and connect and fix it to the fixing holes 2330 on the backrest portion, thereby fixing the front backrest reinforcement mechanism 2100 to the backrest portion 2300. In this embodiment, the front backrest reinforcement mechanism 2100 and the backrest portion 2300 are made to fit tightly together, which can better improve the strength of the backrest portion 2300.

[0258] In this embodiment, the reinforcing sheet is made of a stamped metal plate and has a body 2110 and an edge portion 2130 located around the body 2110. In this embodiment, the aforementioned perforation 2131 is provided on the edge portion 2130, but this invention is not limited thereto. As long as the reinforcing sheet can be fixed to the backing portion 2300 without affecting the function of the reinforcing sheet, one or more perforations 2131 can be provided on the body 2110.

[0259] In addition, the reinforcing plate is also provided with a locking part 2120 connected to the main body 2110. The locking part 2120 is located below the main body 2110 and extends and arches towards the front of the seat along the connecting hook 2320 at the lower end of the backrest 2300, but this utility model is not limited thereto. The locking part 2120 and the backrest can be joined by welding or locking, for example. As mentioned above, a limiting rib 2321 is provided on the surface of the connecting hook 2320 facing the locking part 2120. The limiting rib 2321 passes through the opening 2121 correspondingly provided on the locking part 2120 to position the locking part 2120 to the connecting hook 2320, thereby positioning the backrest reinforcing mechanism 2100 on the front side of the backrest 2300. The wall thickness of the locking part 2120 can be greater than or equal to the wall thickness of the main body 2110.

[0260] In one embodiment, the engaging portion 2120 is integrally formed with the body 2110, and the wall thickness of the reinforcing piece can preferably range from 1.2 mm to 1.8 mm.

[0261] Reference Figure 15In one embodiment, at least one buffer portion 2111 is formed within the body 2110. The buffer portion 2111 is a recess formed by indentation inward from the front surface of a reinforcing sheet (e.g., a metal sheet) facing the front of the seat portion 2500. (See reference...) Figure 16 , Figure 16 yes Figure 15 The rear view of the front backrest reinforcement mechanism 2100 is shown. The buffer portion 2111 protrudes from the back of the body 2110 (i.e., the surface facing the backrest portion 300). Unlike this embodiment, the back of the front backrest reinforcement mechanism 2100 may also be a flat surface.

[0262] In another embodiment, the buffer portion 2111 may also be a recess formed by indentation inward from the back side of the reinforcing sheet (i.e., the surface facing the backing portion 2300), while a convex portion is formed on the front side of the reinforcing sheet. The number and shape of the buffer portions 2111 are not limited. In this embodiment, multiple buffer portions 2111 are distributed approximately evenly on the reinforcing sheet. The body 2110 can be roughly divided into four regions (upper, lower, left, and right) by the horizontal reference line L1 and the vertical reference line L2. One or more buffer portions 2111 can be provided in each region to distribute stress more evenly.

[0263] Each buffer portion 2111 is symmetrically arranged and can be configured with different shapes and sizes. For example, in this embodiment, buffer portions 2111 in two adjacent areas are connected to form a triangle, but this invention is not limited thereto. Overall, the size of the left and right buffer portions 2111 is smaller than the size of the upper and lower buffer portions 2111.

[0264] Specifically, the areas occupied by multiple buffer portions 2111 can be distributed approximately symmetrically (e.g., vertically symmetrical and / or horizontally symmetrical) on the surface of the reinforcing sheet, and protrusions 2112 are formed between these buffer portions.

[0265] In other alternatives to the buffer section 2111, the wall thickness of the reinforcing sheet ranges from 1.2 mm to 1.8 mm, differing only in the shape and distribution of the ribs on the surface of the reinforcing sheet. Furthermore, the buffer section 2111 can also be configured as a through section penetrating the body of the reinforcing sheet.

[0266] In a specific design, the buffer portions 2111 are symmetrically distributed on the surface of the reinforcing sheet, interconnected with each other. Alternatively, only one buffer portion 2111 may be provided, which is composed of multiple interconnected sub-buffer portions on the reinforcing sheet body. When only one buffer portion 2111 is provided, it is generally point-symmetric or axis-symmetric in shape, such as an "X," "I," or "H" shape, or symmetrically diverging, to distribute stress. In this case, the recess depth of the buffer portion 2111 is preferably no greater than 5 mm to ensure sufficient strength.

[0267] According to this disclosure, when a child safety seat is impacted, the buffer portion 2111 can deform to produce a buffering effect and reduce the overall weight.

[0268] Furthermore, a pre-positioning hole 2113 corresponding to the positioning portion 2360 on the backing body 2310 is provided on the body 2110 of the reinforcing sheet to better position the reinforcing sheet. In this embodiment, the pre-positioning hole 2113 is provided in the upper buffer portion. The position of the pre-positioning hole 2113 can correspond to the positioning protrusion of the backing portion 2300, and the position is not limited. In addition, the pre-positioning hole 2113 is set as a through hole passing through the reinforcing sheet.

[0269] Figure 17 This is a front view of the front back reinforcement mechanism 2100A according to another embodiment of this disclosure. Figure 15 The difference in this embodiment is that the buffer portion 2111A is configured as a long strip-shaped buffer portion 2111A extending vertically, and four long strip-shaped buffer portions 2111A are symmetrically arranged on the body 110A of the reinforcing sheet. Furthermore, in this embodiment, no other buffer portion is provided. Figure 15 , 16 The pre-positioning hole 2113 is provided in the engagement part 2120A. The opening 2121A provided in the engagement part 2120A can cooperate with the limiting rib 2321 on the connecting hook of the back part to position the front back reinforcement mechanism 2100A and the back part.

[0270] Figure 18 This is a front view of the front-side back reinforcement mechanism 2100B according to another embodiment of the present disclosure. The body 2110B can be roughly divided into four regions (upper, lower, left, and right) by a horizontal reference line L1 and a vertical reference line L2. One or more buffer portions 2111B can be provided in each region to distribute stress more evenly. Preferably, the buffer portions 2111B in each region are located closer to the center of the body 2110B and further away from the corners. In this embodiment, the buffer portions 2111B in two diagonally opposite regions can be connected to each other to form an "X" shape, which can further disperse the stress at the corners of the reinforcement plate and reduce the horizontal displacement of the head during an impact.

[0271] In detail, with Figure 15 The difference in the embodiment is that, in addition to the first buffer portion 21111B, additional second buffer portions 21112B are respectively provided on the upper and lower sides of the body 2110B, and a cross-shaped third buffer portion 21113B is provided on the protrusion 2112B formed between the first buffer portions 21111B. Specifically, the first buffer portions 21111B, the second buffer portions 21112B, and the third buffer portions 21113B are symmetrically arranged in pairs on the body 2110B.

[0272] Figure 19 This is a front view of a front back reinforcement mechanism 2100C according to another embodiment of this disclosure. Figure 18 The difference in this embodiment is that only one buffer portion 21113C is provided on the main body 2110C. However, different portions of the buffer portion 21113C are still distributed approximately evenly in different areas of the main body 2110. Furthermore, the buffer portion 21113C may extend from the middle area to the edge portion 2130C (or corner area). In this embodiment, the area occupied by the buffer portion 21113C is symmetrically distributed on the main body 2110C. The shape of the buffer portion 21113C may be a symmetrical cross shape or an "X" shape.

[0273] Figure 20 This is a front view of the front back reinforcement mechanism 2100D according to another embodiment of the present disclosure. In this embodiment, multiple sub-buffer portions 2111D on the reinforcing sheet body are interconnected to form one or more buffer portions. These one or more buffer portions are generally designed in a symmetrical and divergent manner, which can better distribute stress. The areas occupied by the multiple buffer portions 2111D are distributed approximately symmetrically on the surface of the body 110D of the front back reinforcement mechanism 2100D, and the recess depth is no greater than 5 mm.

[0274] Figures 21 to 23 A view of the backrest portion of a child safety seat 1 according to another embodiment of the present disclosure is shown, wherein, Figure 21 The front perspective view of the backrest 2300 of the child safety seat 1 disclosed herein is shown, wherein the front side of the backrest 2300 has a front backrest reinforcement mechanism 2100E. Figure 22 It is a child safety seat 1 according to this disclosure. Figure 21 An exploded perspective view of the backrest 2300 and the front backrest reinforcement mechanism 2100E shown. Figure 23 This is a front view of the front back reinforcement mechanism 2100E according to this disclosure.

[0275] In this embodiment, a front backrest reinforcement mechanism 2100E is fixedly provided on the front of the backrest portion 2300 to ensure the strength of the backrest portion 2300. The front backrest reinforcement mechanism 2100E is detachably provided on the backrest portion 2300. Furthermore, fasteners, such as screws, are used to pass through the through holes 2131E on the front backrest reinforcement mechanism 2100E to connect and fix it to the fixing holes 2330 on the backrest portion 2300, thereby fixing the front backrest reinforcement mechanism 2100E to the backrest portion 2300. In this embodiment, the front backrest reinforcement mechanism 2100E is made to fit tightly against the backrest portion 2300, which can better improve the strength of the backrest portion 2300. For example, the shape of the reinforcing plate matches the shape of the backrest portion 2300, and the reinforcing plate is provided with through holes 2131E for fasteners to pass through and fix to the fixing holes 2330 on the backrest portion 2300.

[0276] like Figure 23 As shown, the front back reinforcement mechanism 2100E is, for example, a reinforcement plate with a left-right symmetrical configuration, such as a reinforcement iron plate. However, the material of the reinforcement plate can also be other metals, such as stainless steel, aluminum alloy, etc.

[0277] In this embodiment, the reinforcing sheet is made of a stamped metal plate and has a body 2110E and an edge portion 2130E located around the body 2110E. At least one buffer portion 2111E is formed within the body 2110E. In this embodiment, the buffer portion 2111E can be a through portion penetrating the body 2110E, and the area occupied by the buffer portion 2111E is approximately symmetrically distributed. For example, four through portions penetrating the body 2110E are provided in the body 2110E, and perforations 2131E are provided on the edge portion 2130E.

[0278] The reinforcing plate also has a locking portion 2120E connected to the main body 2110E. The locking portion 2120E is located below the main body 2110E and extends from the connecting hook 2320 at the lower end of the backrest portion 2300, arching towards the front of the seat. The locking portion 2120E and the backrest portion 2300 can be joined by welding or locking, for example. As mentioned above, a limiting rib 2321 is provided on the surface of the connecting hook 2320 facing the locking portion 2120E. The limiting rib 2321 passes through an opening 2121E correspondingly provided on the locking portion 2120E to position the locking portion 2120E to the connecting hook 2320.

[0279] and Figures 11 to 20Unlike other embodiments, the reinforcing plate is additionally provided with flaps 2140, located on both sides below the front back reinforcement mechanism 2100E. The flaps 2140 and the edge portion 2130E are integrally formed, for example, and can be fitted onto the backing portion 2300 in a form-fitting manner. For example, fasteners can be used to fix the reinforcing plate to the backing portion 2300 through through holes 2131E provided in the flaps 2140. By providing flaps 2140 on both sides below the reinforcing plate, the stability of the front back reinforcement mechanism 2100E can be enhanced, and its fit with the backing portion 2300 can be strengthened, thereby significantly increasing the strength of the backing portion 2300.

[0280] Figure 24 This is a front perspective view of a child safety seat 1 according to an embodiment of the present disclosure, wherein the front of the backrest 2300 has a different... Figure 11 The front backrest reinforcement mechanism 2100F is shown. This front backrest reinforcement mechanism 2100F has different buffer sections on its body and is not equipped with... Figure 11 The pre-positioning hole 2113, as shown in the image. Figure 11 In contrast, the engaging part 2120F of the front back reinforcement mechanism 2100F is connected to the main body in a separate manner.

[0281] Figure 25 yes Figure 24 The front side view of the front back reinforcement mechanism 2100F used in this embodiment. The difference between the reinforcement plate in this embodiment and the reinforcement plate in the previous embodiment is that the reinforcement plate is divided into a snap-fit ​​part 2120F and a body 2130F, and then connected into a whole by welding. The wall thickness of the snap-fit ​​part 2120F is greater than the wall thickness of the body 2110F.

[0282] This disclosure is as follows Figure 25Taking this as an example, other shapes and structures of reinforcing sheets can also adopt this method. In one embodiment, the wall thickness of the body 2110F (including its edge portion 2130F) is between 1.2mm and 1.5mm, while the wall thickness of the engaging portion 2120F is between 1.6mm and 2mm. In another embodiment, the wall thickness of the body 2110F (including its edge portion 2130F) is between 1.2mm and 1.8mm, while the wall thickness of the engaging portion 2120F is between 1.2mm and 1.8mm. For example, the wall thickness of the body 2110F (including its edge portion) can be 1.2mm, while the wall thickness of the engaging portion 2120F can be 2mm. When subjected to impact, the engaging portion 2120F bears greater stress; therefore, according to this disclosure, the thickness of the engaging portion 2120F is designed to be thicker than that of the body 2110F, resulting in higher strength. In this embodiment, after the main body 2110F and the engaging part 2120F are manufactured separately, the two separate structures are then welded together. Both are made of, for example, SPFH590. The main body 2110F and the engaging part 2120F can also be made of different materials, i.e., materials with different strengths can be used. In this case, the thickness of the engaging part 2120F may not exceed the thickness of the reinforcing structure main body 2110F.

[0283] In this embodiment, the body 2110F can be roughly divided into four regions (upper, lower, left, and right) by a horizontal reference line L1 and a vertical reference line L2. One or more buffer portions 2111F can be provided in each region. The buffer portions 2111F can be multiple grooves recessed from the front surface of the body 2110F, and any two grooves can be interconnected or not interconnected. The multiple buffer portions 2111F may include a first buffer portion 21111F and a second buffer portion 21112F. An "X"-shaped first protrusion 21121F is formed between these buffer portions 2111F.

[0284] The second buffer portion 21112F, located below the first buffer portion 21111F, is irregularly shaped, extending to the lower edge of the reinforcing sheet to accommodate the separately welded engaging portion 2120F. Specifically, the first buffer portions 21111F form a triangle, with each first buffer portion 21111F surrounding a smaller third protrusion 21123F, while the lower second buffer portion 21112F surrounds a second protrusion 21122F. The second protrusion 21122F is arrow-shaped and extends downward to the lower edge of the reinforcing sheet 2100F, forming a welded portion together with the irregular edge of the second buffer portion 21112F for fitting and welding the engaging portion 2120F. It should be noted that in this embodiment, the first to third protrusions 21121F, 21122F, and 21123F can also provide a cushioning effect upon impact, reducing horizontal head displacement.

[0285] Figure 26 yes Figure 24 The rear view of the front back reinforcement mechanism 2100F used in this embodiment. In this embodiment, the engaging portion 2120F is only welded to the front side of the reinforcing piece 2100F, so that the engaging portion 2120F can better mechanically and stably fit the body 2110F and the edge portion 2130F to the backing portion 2300, which is not limited to this disclosure.

[0286] Figure 27 This is a rear perspective view of the backrest 2300A of a child safety seat according to an embodiment of the present disclosure, wherein the backrest 2300A has a cover 2340A on its rear side. Figure 13 In contrast, the connecting hook 2320A has a connecting hook extension 2322A, which has a locking hole 2323A in the form of a through hole in the middle for locking the back of the body 2310A.

[0287] Figures 28 to 31A , Figure 31B A rear backrest reinforcement mechanism 2800 according to an embodiment of the present disclosure is shown. In this embodiment, the backrest reinforcement mechanism is implemented as a rear backrest reinforcement mechanism 2800, which is installed on the rear side of the backrest portions 2300, 2300A in the form of a detachable reinforcement bracket. The reinforcement bracket is fixed to the rear side of the backrest portions 2300, 2300A by fasteners, and the lower end of the reinforcement bracket, for example a locking lever 2840, is installed at the position where the backrest portions 2300, 2300A are connected to the seat portion 2500 of the child safety seat 1, 1A, wherein the lower end of the reinforcement bracket is telescopic relative to its upper end.

[0288] The rear backrest reinforcement mechanism 2800 includes at least one first rod and at least one second rod fixedly connected to the first rod. The first rod and / or the second rod are fixed to the rear side of the backrest portions 2300 and 2300A by fasteners and have different extending directions. At least one locking rod is sleeved onto the corresponding second rod from the outside or inside, and can slide up and down relative to the sleeved second rod. One end of at least one locking rod 2840 extends outward from the sleeved at least one second rod 2820, so that it can be detachably installed at the corresponding position of the backrest portions 2300 and 2300A.

[0289] Figure 28 This is a perspective view of a rear backrest reinforcement mechanism 2800 according to an embodiment of the present disclosure. Figure 28In the illustrated embodiment, the rear backrest reinforcement mechanism 2800 is designed as a symmetrical reinforcement bracket. The rear backrest reinforcement mechanism 2800 includes an upper first rod 2810, a lower first rod 2830, and two second rods 2820, namely a left second rod and a right second rod, arranged separately from each other. The left and right second rods are fixedly connected to the upper first rod 2810 and the lower first rod 2830, thereby forming an approximately rectangular frame. In this embodiment, the two second rods 2820 are fixed to the upper first rod 2810 at their top ends, and the length of the upper first rod 2810 may be greater than or equal to the distance between the two second rods 2820, while the lower first rod 2830 is fixed between the two second rods 2820. By setting the upper first rod 2810 and the lower first rod 2830, the upper and lower forces on the rear backrest reinforcement mechanism 2800 are more balanced.

[0290] The upper first rod 2810, the lower first rod 2830, and / or the second rod 2820 are fixed to the rear side of the backrests 2300 and 2300A by fasteners. In this embodiment, the locking rod 2840 is sleeved inside the second rod 2820, can slide up and down relative to the sleeved second rod 2820, and partially extends from the lower end of the sleeved second rod 2820 so as to be installed at the corresponding position on the lower part of the backrests 2300 and 2300A. In this embodiment, a left locking rod and a right locking rod are provided corresponding to the left second rod and the right second rod, respectively, and the left locking rod and the right locking rod are respectively sleeved and extend from the lower ends of the left second rod and the right second rod.

[0291] A groove 2850 is provided on the second rod 2820, and the operating component can be inserted into the groove 2850 from the outside to guide the locking rod 2840 to slide up and down along the groove 2850. In this example, the operating component may include two sliders 2860, such as screws, located at the lower end of the groove 2850, such that the portion of the locking rod 2840 extending out of the second rod 2820 has its maximum length.

[0292] Optionally, this disclosure may include a return spring 2880, wherein a limiting hole h1 is provided on the second rod 2820 below the slide groove 2850, and a pin 2870 is inserted into the limiting hole h1 to position the upper end of the return spring 2880. The return spring 2880 always applies an outward extending force to the locking rod 2840. The return spring 2880 and the pin 2870 are used to keep the locking rod 2840 continuously downward and positioned within the locking hole 2323A to prevent the locking rod 2840 from disengaging, but they are not essential components.

[0293] Figure 29 yes Figure 28The diagram shows a perspective view of the rear backrest reinforcement mechanism 2800, with one second rod 2820 removed to show the internal structure. A spring receiving portion 2842 and a sliding member 2860 located above the spring receiving portion 2842 are provided on the locking rod 2840. The lower end of the return spring 2880 is fixed to the spring receiving portion 2842. In this example, the lower end of the spring receiving portion 2842 has a limiting post 28422, the return spring 2880 is sleeved on the limiting post 28422, and the upper end of the spring receiving portion 2842 has a clearance notch 28421 for avoiding the pin 2870.

[0294] Figure 30 This is a front view of the locking lever of the rear backrest reinforcement mechanism 2800 according to this disclosure. After removing the return spring 2880, it can be clearly seen that the lower end of the spring receiving part 2842 is provided with a limiting post 28422, and the upper end of the spring receiving part 2842 is provided with a clearance notch 28421 for accommodating the pin 2870. Furthermore, a connection hole 2841, such as a screw connection hole, for receiving the sliding member 2860 is provided above the spring receiving part 2842.

[0295] Figure 31A and Figure 31B Partial exploded perspective views of the rear backrest reinforcement mechanism 2800 according to this disclosure are shown in different forms. Figure 31A Understandably, the slider 2860 passes through the outside of the slide groove 2850 and can be inserted into the connecting hole 2841 of the locking rod 2840 to drive the locking rod 2840 to slide in the second rod 2820. The return spring 2880 is placed in the spring receiving part 2842 and fixed at the lower end. The return spring 2880 in Figure 31B The middle part is taken out from the spring receiving part 2842. Its upper end is not fixed in the spring receiving part 2842, but is limited by the pin 2870 inserted into the limiting hole h1.

[0296] Figure 32 This is a perspective view of a rear backrest reinforcement mechanism according to another embodiment of this disclosure. Figure 28 The difference in this embodiment is that the operating component may further include a linkage 2890. The linkage 2890 may have two engaging portions, and a slider 2860 is disposed on the linkage 2890 via the two engaging portions. Specifically, the slider 2860 passes through the linkage 2890 and inserts into a groove 2850. By grasping the linkage 2890 and sliding it upwards, both locking levers 2840 can be raised together, allowing the two locking levers 2840 to extend and retract synchronously, facilitating locking and unlocking operations of the backrest. In this embodiment, the first lever 2830 may also be omitted.

[0297] In another embodiment, the operating component may also include only the linkage 2890, which has two engaging members. Each engaging member can be inserted into the connecting hole 2841 of the corresponding locking rod 2840 and the sliding groove 2850 of the corresponding second rod 2820. By holding the linkage 2890 and sliding it upwards, the locking rods 2840 on both sides can be raised simultaneously, resulting in a simple structure and convenient operation.

[0298] Figure 33 This is a rear perspective view of a child safety seat 1A according to an embodiment of the present disclosure, wherein the backrest portion 2300A has a rear backrest reinforcement mechanism 2800 on its back.

[0299] The backrest body 2310A of the backrest portion 2300A is located above the latch 2540. The connecting hook 2320A of the backrest portion 2300A extends downward from the lower side of the backrest body 2310A and then preferably bends towards the front of the seat portion so that when the backrest portion 2300A is installed on the seat portion 2500, the connecting hook 2320A can pass through the latch 2550, bypass the latch 2540, and the connecting hook extension 2322A located at the free end of the connecting hook 2320A can extend backward from the backrest portion 2300A substantially horizontally. A locking hole 2323A (not shown) is provided in the middle of the connecting hook extension 2322A for the locking rod 2840 of the rear backrest reinforcement mechanism 2800 to pass through and lock. In this locked state, the sliding member 2860 is at the lower end of the slide groove 2850.

[0300] Figure 34 yes Figure 33 Another angle of the rear three-dimensional view of the child safety seat 1A. From Figure 34 As can be seen more clearly, the locking rod 2840 of the back reinforcement mechanism 2800 passes through the locking hole 2323A, so that the rear reinforcement mechanism 2800 and the backrest 2300A fixedly connected to it are in a locked state.

[0301] Figure 35 Showing Figure 34 The rear backrest reinforcement mechanism 2800 of the child safety seat 1A is in an unlocked state during installation or removal. In this unlocked state, the slider 2860 slides to its top in the groove 2850, causing the locking lever 2840 to disengage from the locking hole 2323A and retract into the second lever 2820. In this state, because the pin 2870 in the limiting hole h1 restricts the upper side of the return spring 2880, the return spring 2880 is compressed and pre-tightened as the lower end of the spring receiving part 2842 of the locking lever 2840 moves upward. When the external force acting on the slider 2860 disappears, the spring force of the return spring 2880 causes the locking lever 2840 to automatically return to the above-mentioned locked state, that is, the locking lever 2840 is inserted into the locking hole 2323A.

[0302] Advantages of this disclosure include that the bracket-type locking lever can be confined within the locking hole, has high strength, and will not break at the connection between the bracket and the seat or cause the locking lever to disengage from the locking hole when subjected to impact.

[0303] In summary, during an impact, the force on a child safety seat is concentrated on the backrest, and the seatbelt's fixation to the seat is asymmetrical. If the backrest is not strong enough, a torsional force will be generated in the seat during an impact, causing the backrest to deform. Especially in Harness mode, the restraint force on the child weakens, causing the child to lean forward significantly, resulting in greater horizontal head displacement. Adding a reinforcing structure to the backrest to increase its strength can effectively improve head displacement. A reinforcing plate is simple in structure, easy to implement, and convenient to manufacture. A reinforcing bracket provides even better reinforcement and further improves head displacement.

[0304] In the third aspect of this disclosure, Figure 36 A child safety seat 1 according to this disclosure is shown.

[0305] Regarding the binding path of the vehicle seat belt (not shown), the child safety seat 1 according to this disclosure has two usage modes: Harness mode and Booster mode.

[0306] In Harness mode, the shoulder strap of the vehicle seat belt passes sequentially through the clamp (not shown) located at the connection between the backrest 3300 and the side wing 3700 of the child safety seat 1, and the upper part of the opening 3800 near the door near the backrest 3300 for the vehicle seat belt to pass through. The lap belt of the vehicle seat belt passes through the lower part of the opening 3800 near the door, and then passes together with the shoulder strap through the lower part of the opening 3800 near the backrest 3300 away from the door, so as to engage and fix with the seat belt buckle on the vehicle seat.

[0307] In Harness mode, the onboard seatbelt secures the child safety seat 1 to the vehicle seat. While seated, the child utilizes the specially configured shoulder straps 3600 of the child safety seat 1 (see [link to Harness mode]). Figure 37 The shoulder strap 3600 is secured in the child safety seat 1, and is connected to the adjustment strap 3500 via the connector body 3100 (see...). Figure 37The adjustment strap 3500 is used to adjust the shoulder strap 3600 according to the specific situation of the child. The shoulder strap 3600 is guided from the front side of the child safety seat 1 through the corresponding shoulder strap opening to the rear side, and is connected to the adjustment strap 3500 at the rear side of the backrest 3300 via the connector body 3100. The adjustment strap 3500 is then brought from the rear side of the backrest 3300 and the seat 3200 to the front side of the child safety seat 1, and can be locked and unlocked by, for example, an A-LOCK 3210 provided at the front of the seat 3200.

[0308] In Booster mode, the shoulder strap of the vehicle seat belt passes sequentially through the guide located between the backrest 3300 and the headrest 3400, and under the armrest 3900 on the side away from the door. The lap belt of the vehicle seat belt passes under the armrest 3900 on the side near the door, and then passes under the armrest 3900 on the side away from the door together with the shoulder strap, so as to engage and secure with the seat belt buckle on the vehicle seat.

[0309] In Booster mode, the child is secured in the child safety seat 1 using the vehicle's seatbelt. In this case, the fixed connection between the shoulder strap 3600, connector body 3100, and adjustment strap 3500, specifically configured for the child safety seat 1 in Harness mode, can be disassembled. The connector body 3100, which connects the shoulder strap 3600 and adjustment strap 3500, such as a T-shaped connector or T-shaped metal plate, can be stored on the seat 3200. Figure 36 The receiving recess 3220 is shown in the diagram. For example, when the shoulder strap 3600 is detached, the connecting component or the connecting body only 3100 can be accommodated in the receiving space or receiving recess 3220 provided on the upper rear side of the seat 3200. The receiving recess 3220 is preferably provided in the rear region of the seat 3200, that is, the region of the rear of the seat 3200 near the backrest 3300, so that the connecting component or the connecting body only 3100 can be safely and discreetly accommodated in a specific position when the connecting component is not needed, so that it can be removed for reuse. Alternatively, it is also conceivable that the receiving recess 3220 can be provided in other locations, such as the rear of the backrest 3300, and the receiving recess 3220 can also be provided with, for example, a snap-fit ​​device for securing the connecting body 3100.

[0310] Figure 37 A side view of a connection assembly according to a first embodiment of the present disclosure is shown. The connection assembly according to the present disclosure includes: a connector body 3100, which is connected to a shoulder strap 3600 of a child safety seat 1 and to an adjustment strap 3500; and a stop member 3130A, which is connected to the connector body 3100 and can cover the removal opening 3122 of the shoulder strap 3600 to prevent the shoulder strap 3600 from coming off.

[0311] According to this embodiment, the connector body 3100 includes a main body 3110 for connecting to the adjustment belt 3500. The main body 3110 has an adjustment belt connection hole 3111, which is located, for example, in the middle of the main body 3110. The adjustment belt connection hole 3111 is for connecting to the adjustment belt 3500 and is designed, for example, as a transverse slot adapted to the shape of the adjustment belt 3500. The adjustment belt 3500 can pass through the adjustment belt connection hole 3111 and... Figure 36 The A-LOCK3210 connection shown is used for adjusting, locking, and releasing the adjustment band 3500.

[0312] The connector body 3100 also includes an extension 3120 connected to the main body 3110. The extension 3120 and the upper side of the main body 3110 along the height direction define a shoulder strap connection hole 3121, and the left and right ends of the extension 3120 and the main body 3110 define shoulder strap removal ports 3122. The shoulder strap connection hole 3121 is used to connect to the shoulder strap 3600, and the shoulder strap removal port 3122 communicates with the shoulder strap connection hole 3121 for removing the shoulder strap 3600 from the connector body 3100 through the shoulder strap removal port 3122, for example, when using Booster mode, so as to save the connector body 3100. According to this embodiment, the extension 3120 extends laterally to both sides of the upper end of the main body 3110 relative to the main body 3110, forming a T-shaped configuration with the main body 3110. At its end 3123, the extension 3120 defines a shoulder strap connection hole 3121 and a shoulder strap removal opening 3122 with the main body 3110 via a protrusion 3124. The protrusion 3124 extends from the lower end of the end 3123 toward the main body 3110. According to this disclosure, the shape of the connector body 3100 can be constructed to be generally elliptical to provide a compact and high-strength construction solution.

[0313] According to this embodiment, the stop member 3130A has a stop member body 3131A, which is generally elongated and its shape is adapted to the shape of the lower side of the main body 3110. It is detachably connected to the main body 3110 of the connector body 3100, for example, by snapping. The stop member 3130A also has an anti-slip portion 3132A. According to this embodiment, the stop member body 3131A extends to both sides along the longitudinal direction to form the anti-slip portion 3132A. The anti-slip portion 3132A can cooperate with the end 3123 of the extension portion 3120 to prevent the shoulder strap 3600 from slipping off. According to this embodiment, the anti-slip portion 3132A is constructed as a hook, for example, a resilient spring. The hook is provided on both ends of the stop member body 3131A and is detachably connected to the protrusion 3124 located on the end 3123 of the extension portion 3120 of the connector body 3100. The hook can be integrally formed with the stop body 3131A, or it can be formed separately.

[0314] For example, in Harness mode, the hook is elastically engaged with the upper side of the protrusion 3124, i.e., the shoulder strap connection hole 3121, as shown in the figure, thereby closing the shoulder strap removal port 3122 and thus preventing the shoulder strap 3600 from coming out of the shoulder strap connection hole 3121. When switching to Booster mode, for example, the user can use a tool to deform the hook and detach it from the protrusion 3124. If necessary, the stop 3130A can be separated from the main body 3110 of the connector body 3100, allowing the shoulder strap 3600 to come out of the shoulder strap connection hole 3121 through the shoulder strap removal port 3122. After the shoulder strap 3600 is removed, the connector body 3100 can be... Figure 36 The shoulder strap 3600 is housed in the receiving recess 3220 of the seat 3200, or in any possible location. To switch back from Booster mode to Harness mode, the user can first remove the stop 3130A from the main body 3110, and after inserting the shoulder strap 3600 into the shoulder strap connection hole 3121 through the shoulder strap removal port 3122, the stop 3130A is then securely attached to the main body 3110. In this case, the hook is again shaped to engage with the upper side of the protrusion 3124 and provides a retaining force.

[0315] Using this disclosure, when switching from Harness usage mode to Booster usage mode, the shoulder strap fixing points of Harness can be removed and restored after removal, i.e., they can be removed without being destructively disassembled, thereby saving costs.

[0316] According to another embodiment of this disclosure, when a disassembly port for adjusting belt 3500 is provided, the stop member 3130A may also be provided to cover the disassembly port of adjusting belt 3500 to prevent adjusting belt 3500 from coming out of adjusting belt connecting hole 3111. This disclosure is not limited thereto.

[0317] Figure 38 A perspective view of a connection assembly according to a first embodiment of the present disclosure is shown, wherein the connector body 3100 and the stop member 3130 are in an assembled state. Figure 38 As shown, the anti-slip portion 3132A, or hook, of the stop member 3130A is engaged with the protrusion 3124 of the extension 3120 of the connector body 3100, for example, by fitting together in a shape-fitting manner, thereby closing the shoulder strap removal port 3122 and preventing the shoulder strap 3600 in the shoulder strap connection hole 3121 from coming off. In this embodiment, the stop member body 3131A of the stop member 3130A is constructed as a groove, and the lower side of the main body 3110 of the connector body 3100 is inserted into the groove, and the stop member 3130 is fixed to the main body 3110, for example, by elastic engagement of the hook on the protrusion 3124. In addition, the connector body 3100 can also be connected to the main body 3110 in other ways, and this disclosure is not limited thereto.

[0318] Figure 39 An exploded perspective view of a connecting assembly according to a first embodiment of the present disclosure is shown, wherein the connecting body 3100 and the stop 3130 are in an unassembled state. Figure 39 As shown, the stop member 3130A can be made of a sheet material, such as an iron sheet. Both ends of the sheet material form hook-shaped anti-slip portions 3132A for closing the shoulder strap removal opening 3122. The shape of the anti-slip portions 3132A is adapted to the protrusion 3124. To insert into the main body 3110, the two sides of the sheet material can be bent upwards to form a stop member body 3131A that conforms to the shape of the lower side of the main body 3110. Using this embodiment, the stop member 3130A can be implemented using simple sheet material and processing technology, resulting in low cost and ease of manufacture.

[0319] Figure 40 A perspective view of a stop member 3130A according to a first embodiment of the present disclosure is shown. The stop member body 3131A having a bottom and two sidewalls, and the hook-shaped anti-detachment portions 3132A located at both ends of the stop member 3130A, can be better seen according to the present disclosure. According to this embodiment, the hook-shaped anti-detachment portions 3132A are integrally formed with the stop member body 3131A, and the present disclosure is not limited thereto.

[0320] Figure 41A front perspective view of a connecting assembly according to a second embodiment of the present disclosure is shown. According to this embodiment, the stop 3130B includes a stop body 3131B and an anti-detachment portion 3132B. The stop body 3131B extends longitudinally toward its free end to form the anti-detachment portion 3132B. The stop body 3131B is pivotally connected to the main body 3110 of the connecting body 3100 via a pivoting connector 3135B, such as a pin, for example, connected to the left and right ends of the main body 3110. The anti-detachment portion 3132B is configured as a snap-fit, which can be integrally formed with the stop body 3131B, and the anti-detachment portion 3132B is detachably snapped into the end 3123 of the extension 3120. According to one embodiment, the anti-detachment portion 3132B can be pivotally inserted into a snap-fit ​​recess 3125 provided on the end 3123, the snap-fit ​​recess 3125 being, for example, a notch whose shape is adapted to the anti-detachment portion 3132B. The snap-fit ​​recess 3125 may also form a flange for the anti-detachment portion 3132B, which can prevent the anti-detachment portion 3132B from being excessively pivoted and thus moving upward over the end 3123 to the upper side of the end 3123.

[0321] Figure 42 A side perspective view of the connecting assembly according to a second embodiment of the present disclosure is shown. A recess 3133B is provided on the stop 3130B corresponding to the shoulder strap removal opening 3122 of the connecting body 3100. It can be seen that the recess 3133B is symmetrically provided on both sides of the stop body 3131B, which is configured, for example, to have a bottom and two sidewalls, thereby adapting its shape to the shoulder strap removal opening 3122.

[0322] Figure 43 A front perspective view of a connecting assembly according to a third embodiment of the present disclosure is shown. According to this embodiment, the stop 3130C includes a stop body 3131C and an anti-detachment portion 3132C. The stop body 3131C extends longitudinally toward its free end to form the anti-detachment portion 3132C. The stop body 3131C is pivotally connected to the main body 3110 of the connecting body 3100 via a pivoting connector 3135C, such as a pin, for example, connected to the main body 3110 in a front-rear direction. The anti-detachment portion 3132C is configured as a snap-fit, which can be integrally formed with the stop body 3131C, and the anti-detachment portion 3132C is detachably snapped into the end portion 3123 of the extension 3120. According to one embodiment, the anti-detachment portion 3132C can be pivotally inserted into a snap-fit ​​recess 3125 provided on the end portion 3123, the snap-fit ​​recess 3125 being, for example, a notch whose shape is adapted to the anti-detachment portion 3132C. The end portion 3123 may form a flange for the anti-detachment portion 3132C, which is provided on the upper side of the snap-fit ​​recess 3125. The flange can prevent the anti-detachment portion 3132C from being excessively pivoted and thus passing over the end portion 123.

[0323] Additionally or alternatively, according to this disclosure, a recess 3133C may also be provided on the stop body 3131C, for example, a recess 3133C may be provided symmetrically on the front and rear sides of the stop body 3131C. The recess 3133C may be adapted to the size of the shoulder strap removal opening 3122 and thus be inserted into the shoulder strap removal opening 3122. This allows the stop 3130C to be positioned more securely and in a more shape-fitting manner to prevent the shoulder strap 3600 from coming off.

[0324] The settings in this embodiment can be referred to Figures 41 to 42 The second embodiment is shown.

[0325] Unlike the second embodiment, this embodiment additionally provides a fixing protrusion 3134C on the top of the anti-detachment part 3132C. The fixing protrusion 3134C can cooperate with the corresponding structure in the snap-fit ​​recess 3125 to provide additional fixing force, thereby achieving a more secure fixation.

[0326] Figure 44 A side perspective view of the connecting assembly according to a third embodiment of the present disclosure is shown. The fixing protrusion 3134C on the top of the anti-slip portion 3132C can be clearly identified, which can be engaged with the corresponding structure on the engaging recess 3125 of the extension portion 3120. Furthermore, it can be seen that the recessed portion 3133C is symmetrically provided on the front and rear sides of the stop body 3131C of the U-shaped stop 3130C, thereby adapting its shape to the shoulder strap removal port 3122.

[0327] Figure 45 A front perspective view of a connecting assembly according to a third embodiment of the present disclosure is shown. In this embodiment, the stop 3130C, for example, is disengaged from the locking recess 3132C by means of a tool and then pivoted downward about the axis of the pivoting connector 3135C, thereby opening the closed shoulder strap removal port 3122. Figure 45 As can be seen, a fixing recess 3126 is located in the snap-fit ​​recess 3125 of the extension 3120, corresponding to the fixing protrusion 3134C. According to this embodiment, the fixing recess 3126 is constructed as a through groove. The fixing recess 3126 can also be constructed as a non-through pit corresponding to the shape of the fixing protrusion 3134C; this disclosure is not limited thereto. According to this embodiment, a relatively large force is required to open the stop member 3130C, for example, a tool is needed to open it, so that the stop member 3130 can prevent the shoulder strap 3600 from dislodging from the shoulder strap connection hole 3121 to the greatest extent possible.

[0328] Figure 46 A side perspective view of the connection assembly according to a third embodiment of the present disclosure is shown, with the stop 3130C open. Figure 46The fixing protrusion 3134C on the anti-slip part 3132C can be seen from the inside of the stop member 3130C. It protrudes inwards from the stop member 3130C and can engage with the fixing recess 3126 in the engagement recess 3125 to further provide a fixing force, thereby preventing the stop member 3130C from accidentally releasing the shoulder strap removal port 3122. Furthermore, the structure of the recess 3133C can be better seen. It is recessed from both sides of the stop member body 3131C, thus adapting to the shape of the shoulder strap removal port 3122 and facilitating the engagement and disengagement of the stop member 3130C with the end 3123, and advantageously providing additional fixing force.

[0329] Figure 47 A partial cross-sectional view of a connection assembly according to a third embodiment of the present disclosure is shown. Figure 47 The stop 3130C is shown to be cut open, wherein the anti-detachment part 3132C can not be fully attached to the locking recess 3125, but can be engaged with the locking recess 3126 only by means of the fixing protrusion 3134C. Figure 48 The main body 3110 also shows a stop member connection hole 3112, which is used to insert a pivoting connector 3135C, such as a pin, so that the stop member 3130C can pivot about its axis.

[0330] Figure 48 An exploded perspective view of a connecting assembly according to a third embodiment of the present disclosure is shown. The stop 3130C may be made of two elongated sheets, each elongated sheet having corresponding through holes at its two ends for the pivot connector 3135C to pass through. The pivot connector 3135C passes through the stop connecting hole 3112 in the installed state.

[0331] Figure 49 A perspective view of a connection assembly according to a fourth embodiment of the present disclosure is shown, with the stop 3130D open. (As shown) Figure 49As shown, a fixing protrusion 3134D is provided on the inner side of the stop member 3130D as an anti-detachment part. Preferably, two fixing protrusions are symmetrically provided on the front and rear inner sidewalls of the free end of the stop member 3130D. Fixing recesses 3126 corresponding to the fixing protrusions 3134D are respectively provided on the front and rear sides of the end 3123 of the extension 3120 of the connector body 3100. According to this embodiment, the fixing recesses 3126 are constructed as pits. Of course, the fixing protrusions may only be provided on one of the front and rear inner sidewalls of the free end of the stop member 3130, or the fixing protrusions may be asymmetrically provided (in number or position) on the front and rear inner sidewalls of the free end of the stop member 3130D. This utility model is not limited to this. According to this embodiment, when the stop member is engaged with the connector body, a relatively large force is required to open the stop member 3130D, for example, a tool is needed to open it, so that the stop member 3130D can prevent the shoulder strap 3600 from coming out of the shoulder strap connection hole 3121 to the greatest extent. In this embodiment, for example, a tool is used to disengage the fixing protrusion 3134D from the end 3123 and to pivot the stop member 3130D downward about the axis of the pivot connector 3135D, thereby opening the closed shoulder strap removal port 3122. Furthermore, the structure of the recess 3133D can be better seen, which is recessed from both sides of the stop member body 3131D, thereby adapting to the shape of the shoulder strap removal port 3122 and providing additional fixing force. Due to the curved shape of the recessed portion 3133D, it can have a certain degree of elasticity, that is, it can deform when the stop member 3130D pivots upward to the end 3123, so that the fixing protrusion 3134D engages with the fixing recess 3126 at the end 3123, and then returns to its original position after being engaged, so that the engagement between the fixing protrusion 3134D and the fixing recess 3126 is more stable.

[0332] Figure 50 A side view of the assembly of the connecting component according to the fifth embodiment of this disclosure is shown. According to this embodiment, the stop body 3131E of the stop 3130E is configured to extend longitudinally to both ends to form anti-slip portions, allowing for detachable connection to the end 3123. The shape of the stop body 3131E adapts to the lower shape of the main body 3110 and the extension 3120 of the connector body 3100. When the stop 3130E is fixedly engaged with the connector body 3100, the stop 3130E covers the shoulder strap removal opening 3122 to prevent the shoulder strap 3600 from dislodging from the opening 3122. Other fixing means can be provided between the inside of the stop body 3131E and the main body 3110 and the extension 3120 to form anti-slip portions, thereby enhancing the fixing force between the stop 3130E and the connector body 3100.

[0333] Figure 51An exploded perspective view of a connecting assembly according to a fifth embodiment of the present disclosure is shown. According to this embodiment, the anti-detachment portion is configured as a fixing protrusion 3134E protruding from the front and rear sidewalls of the stop body 3131E toward opposite sidewalls, and an end portion 3123 is provided with a fixing recess 3126 that mates with the fixing protrusion 3134E. Preferably, at least one fixing recess 3126 is provided on each of the two end portions 3123 to provide symmetrical fixing points. Specifically, the stop body 3131E and the end portion 3123 may have mutually engaging anti-detachment portions, such as the fixing protrusion 3134E and the corresponding fixing recess 3126, on opposite connecting surfaces. In this embodiment, the stop body 3131E of the stop member 3130E has inwardly protruding fixing protrusions 3134E at both ends on its inner side. Correspondingly, fixing recesses 3126 are provided on both sides (only the front side is visible in this figure) on the end 3123 of the extension 3120 of the connector body 3100, so as to achieve a fixed connection between the stop member 3130E and the connector body 3100. For example, the anti-detachment part can also be configured as a fixing recess that is recessed from the front and rear side walls of the stop body 3131E away from the opposite side walls, and the end 3123 is provided with a fixing protrusion that cooperates with the fixing recess.

[0334] In this embodiment, other fixing methods may also be provided between the stop 3130E and the end 3123 or the lower part of the connector body 3100, such as bonding or plugging, and this disclosure is not limited thereto.

[0335] Figure 52 A side view of a connection assembly according to a sixth embodiment of the present disclosure is shown. According to this embodiment, the stop 3130F is configured at its end to resemble... Figures 41 to 48 The buckle shown, namely the anti-detachment part 3132F, is in the form of a buckle, and the buckle is detachably engaged with the end 3123 of the extension 3120 of the connector body 3100. The stop body 3131F of the stop member 3130F is provided with a fixing part 3136, which is fixedly connected to the main body 3110 of the connector body 3100, for example, by form-fitting engagement, or by other means.

[0336] In this embodiment, after the stop member 3130F is removed from the connector body 3100, it can be easily reconnected, for example, snapped onto the connector body 3100, thereby enabling the connection assembly to be restored conveniently and efficiently, while reducing the number of parts.

[0337] Figure 53An exploded perspective view of the connecting assembly according to the sixth embodiment of this disclosure is shown. As can be seen from the figure, a fixing part 3113, corresponding to and connected to the fixing part 3136, is provided on the lower side of the main body 3110 of the connecting member body 3100 along the height direction, thereby easily achieving the fixing of the connecting member body 3100 and the stop member 3130F. In this embodiment, the engaging connection between the fixing protrusion 3134F and the fixing recess 3126, and the arrangement of the recess 3133F and the shoulder strap removal port 3122, etc., can be referred to in other embodiments and will not be repeated here.

[0338] Figure 54 A side view of the connection assembly according to a seventh embodiment of the present disclosure is shown. According to this embodiment, the stop 3130G is constructed as a sheet that can be disassembled using a tool, such as adhesive tape, a plastic sheet, a metal sheet, etc. The disassembly opening 3122 is then covered by the sheet to prevent the shoulder strap 3600 from slipping out of the disassembly opening 3122. Preferably, a sheet is folded to cover the disassembly opening 3122 from multiple sides.

[0339] According to this embodiment, the stop 3130G can be adhesive tape, which can be pasted onto the T-shaped metal plate to cover the disassembly opening 3122, thereby preventing the shoulder strap 3600 from coming off from the disassembly opening 3122. For example, a marking indicating that scissors should be printed on the outer surface 3131G of the adhesive tape to remind the user that scissors are needed to cut it if disassembly is required. According to this embodiment, no additional parts are needed, resulting in lower costs and easier installation.

[0340] Figure 55 An exploded perspective view of a connecting assembly according to a seventh embodiment of the present disclosure is shown. According to this embodiment, for example, the stop 3130G is deformed to cover the disassembly port 3122. The stop 3130G is preferably formed by folding a single sheet of adhesive tape. In Booster mode, this adhesive tape can be unfolded and stored, or discarded and replaced with a replacement sheet, thus reducing costs and meeting requirements. The inner surface 3132G of the stop 3130G is used to engage with the connector body 3100 to prevent the stop 3130G from detaching from the connector body 3100. The engagement can be, for example, adhesive bonding, welding, etc.

[0341] According to this disclosure, a stop is provided, which is used to connect to the connector body 3100, such as a T-shaped metal plate, between the connecting shoulder strap 3600 and the adjusting strap 3500. The stop seals the disassembly port of the T-shaped metal plate by means of elastic force, locking force, adhesive force, etc., to prevent the shoulder strap 3600 from coming off in the Harness usage mode and to ensure the normal function of the Harness usage mode. Moreover, after disassembly, it can be restored by its own elastic force or by the action of its own structure or by other fixed connection methods, so as not to cause damage to the stop.

[0342] Since this disclosure can be embodied in various forms without departing from the spirit and substance of this disclosure, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted in the broadest sense within the scope defined by the claims. Therefore, all variations falling within the scope of the claims or their equivalents should be covered by the claims.

Claims

1. A backrest stiffening mechanism, characterised in that, The backrest reinforcing mechanism is detachably provided on the front side and / or the rear side of a backrest portion (2300, 2300A) of a child safety seat (1, 1A) to reinforce the strength of the backrest portion (2300, 2300A) against deformation, wherein the backrest reinforcing mechanism is a reinforcing sheet detachably provided on the front side of the backrest portion, and further provided with a cushion portion, and / or the backrest reinforcing mechanism is a reinforcing bracket detachably provided on the rear side of the backrest portion.

2. The backrest reinforcing mechanism according to claim 1, wherein: the reinforcing bracket is fixed to the rear side of the backrest portion (2300, 2300A) by fasteners, and a lower end of the reinforcing bracket is installed at a position where the backrest portion (2300, 2300A) is connected to a seat portion (2500) of the child safety seat (1, 1A), wherein the lower end of the reinforcing bracket is telescopic with respect to an upper end thereof.

3. The backrest reinforcing mechanism according to claim 1, wherein: the reinforcing bracket includes at least one first rod (2810, 2830) and at least one second rod (2820) fixedly connected to the first rod (2810), the first rod (2810, 2830) and / or the second rod (2820) are fixed to the rear side of the backrest portion (2300, 2300A) by fasteners, and respectively have different extension directions; wherein the reinforcing bracket further includes at least one locking rod (2840) slidably sleeved with the at least one second rod (2820), and one end of the at least one locking rod (2840) extends out of the sleeved at least one second rod (2820) to be detachably installed at a corresponding position of the backrest portion (2300, 2300A).

4. The backrest reinforcing mechanism according to claim 1, wherein: the reinforcing bracket includes an upper first rod (2810) and a lower first rod (2830) arranged separately from each other, and a left second rod and a right second rod arranged separately from each other, the left second rod and the right second rod are fixed with the upper first rod (2810) and the lower first rod (2830) respectively, thereby forming a frame; the reinforcing bracket further includes two locking rods (2840) corresponding to the left second rod and the right second rod, the two locking rods (2840) are respectively slidably sleeved with and extended out of the left second rod and the right second rod to be detachably installed at the backrest portion (2300, 2300A).

5. The backrest reinforcing mechanism according to claim 1, wherein: The shape of the reinforcing sheet matches the shape of the backrest portion (2300, 2300A), and the reinforcing sheet has perforations (2131, 2131A, 2131B, 2131C, 2131D, 2131E) for fixing holes (2330) through which fasteners pass and are fixed to the backrest portion (2300, 2300A), and the perforations (2131, 2131A, 2131B, 2131C, 2131D, 2131E) are provided at the edge portion (2130, 2130A, 2130B, 2130C, 2130D, 2130E) of the reinforcing sheet.

6. The backrest reinforcing mechanism according to claim 1, wherein: The reinforcing sheet has a body (2110, 2110A, 2110B, 2110C, 2110D) and an edge portion (2130, 2130A, 2130B, 2130C, 2130D, 2130E) around the body (2110, 2110A, 2110B, 2110C, 2110D), and at least one cushion portion (2111, 2111A, 2111D) is formed in the body (2110, 2110A, 2110B, 2110C, 2110D).

7. The backrest reinforcing mechanism according to claim 1, wherein: The reinforcing sheet has a body (2110, 2110A, 2110B, 2110C, 2110D), and the body (2110, 2110A, 2110B, 2110C, 2110D) is divided into four regions of upper, lower, left, and right by a vertical reference line and a horizontal reference line, and one or more cushion portions are provided in each of the regions.

8. The backrest reinforcing mechanism according to claim 1, wherein: The lower edge of the reinforcing sheet is further provided with an engaging portion (2120, 2120A, 2120B, 2120C, 2120D, 2120E, 2120F), and the engaging portion (2120, 2120A, 2120B, 2120C, 2120D, 2120E, 2120F) is shaped to fit a connecting hook (2320, 2320A) at the lower end of the backrest portion (2300, 2300A) to engage with the connecting hook (2320, 2320A).

9. The backrest reinforcing mechanism according to claim 1, wherein: The reinforcing sheet has a body (2110, 2110A, 2110B, 2110C, 2110D, 2110E, 2110F) and an engaging portion (2120, 2120A, 2120B, 2120C, 2120D, 2120E, 2120F) connected to the lower end of the body (2110, 2110A, 2110B, 2110C, 2110D, 2110E, 2110F), and the wall thickness of the engaging portion (2120, 2120A, 2120B, 2120C, 2120D, 2120E, 2120F) is greater than or equal to the wall thickness of the body.

10. The backrest stiffening mechanism according to claim 1, characterized in that: the stiffening sheet has a body (2110, 2110A, 2110B, 2110C) in which at least one of the cushioning portions (2111, 2111A, 2111B, 2111C) is formed, the area occupied by the cushioning portions (2111, 2111A, 2111B, 2111C) being distributed approximately symmetrically on the surface of the body (2110, 2110A, 2110B, 2110C).

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