Side collision protection mechanism and child safety seat

Abstract

The utility model relates to a side collision protection mechanism which is arranged on the side face of a backrest of a child safety seat and positioned at an opening, allowing a vehicle-mounted safety belt to penetrate through, in the child safety seat, and comprises a side collision protection block which is arranged on the side face of the backrest in a pivoted mode and blocks the opening and prevents the vehicle-mounted safety belt from penetrating through in a folded state, in the unfolded state, the side collision protection block laterally extends out of the side face of the backrest and does not block the opening, so that the vehicle-mounted safety belt can penetrate through the opening. The present disclosure also relates to a child safety seat.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the priority benefit of Chinese application No. 2022112847456, entitled “Anti-misuse side impact protection mechanism and child safety seat”, filed on October 17, 2022, Chinese application No. 2022113390166, entitled “Back reinforcement mechanism and child safety seat”, filed on October 28, 2022, and Chinese application No. 2023105076434, entitled “Connection assembly for child safety seat and child safety seat”, filed on May 6, 2023, all of which are incorporated herein by reference in their entirety. Technical Field

[0003] The present invention relates to a side impact protection mechanism and a child safety seat. Background Art

[0004] In order to improve the effect of side impact protection, some existing child safety seats generally have a side impact protection block on the side of the seat body. Some existing side impact protection blocks need to be opened manually by users, but users often forget to open them, thereby losing the side impact protection effect. Utility Model Content

[0005] According to a side impact protection mechanism disclosed in the present invention, the side impact protection mechanism is arranged on the side of the backrest of the child safety seat and is positioned at an opening on the child safety seat for the vehicle-mounted safety belt to pass through. The side impact protection mechanism includes: a side impact protection block, which can be pivotally arranged on the side of the backrest and has a deployed state and a folded state. In the folded state, the side impact protection block blocks the opening to prevent the vehicle-mounted safety belt from passing through. In the deployed state, the side impact protection block extends laterally on the side of the backrest without blocking the opening, so that the vehicle-mounted safety belt can pass through the opening.

[0006] In one embodiment, side wings protruding forward are respectively arranged on two side surfaces of the backrest, and the opening is defined by the side wings, or is defined by the side wings together with the backrest.

[0007] In one embodiment, in the folded state, the side impact protection block is located in the middle of the opening, dividing the opening into two upper and lower parts that are not connected to each other.

[0008] In one embodiment, the side impact protection mechanism has a fixing seat pivotally connected to the side impact protection block, the fixing seat is fixedly installed on the back side of the opening and has a pivoting portion, and the side impact protection block is pivotably arranged on the pivoting portion.

[0009] In one embodiment, the side impact protection block includes: a shell, which is pivotally arranged on the pivot portion; a dial button, which is slidably installed in the shell and exposed outside the shell for operation; a card block, which is slidably installed in the shell and fixedly connected to the dial button, and the card block has a mounting end and a locking end; and a spring, which is arranged between the inner wall of the shell and the mounting end of the card block, and applies a force to push the locking end of the card block out of the shell.

[0010] In one embodiment, an outwardly open engaging hole is provided on the pivot portion of the fixing seat, and in the retracted state, the engaging end of the block abuts against the outer circumference of the pivot portion and is retracted into the shell; in the expanded state, the engaging end of the block extends out of the shell and engages into the engaging hole of the fixing seat, and by overcoming the action force of the spring, pushing the dial button can drive the block to retract into the shell so as to disengage from the engaging hole.

[0011] In one embodiment, a torsion spring is provided between the housing and the pivoting portion, and the torsion spring applies a force to pivot the side impact protection block to a folded state.

[0012] A child safety seat according to the present disclosure includes: a seat; a backrest, arranged above the seat; two side wings, respectively arranged on two side edges of the backrest, located above the armrests of the seat; and a side impact protection mechanism according to the present disclosure, arranged on the side of the backrest.

[0013] In one embodiment, one side impact protection mechanism is respectively provided on two side surfaces of the backrest.

[0014] In one embodiment, the child safety seat has a Harness mode and a Booster mode. In the Harness mode, when the side impact protection block is in the unfolded state, the shoulder strap of the vehicle safety belt can pass through the clamp arranged at the connection between the backrest and the side wing, and the upper part of the opening in sequence, and the waist belt of the vehicle safety belt passes through the lower part of the opening, and then passes through the lower part of the opening on the other side of the backrest together with the shoulder strap to be inserted and fixed with the seat belt buckle on the car seat; in the Booster mode, the shoulder strap of the vehicle safety belt passes through the guide arranged between the backrest and the headrest, and the bottom of one armrest in sequence, and the waist belt of the vehicle safety belt passes through the bottom of the other armrest, and then passes through the bottom of the one armrest together with the shoulder belt to be inserted and fixed with the seat belt buckle on the car seat.

[0015] According to a backrest reinforcement mechanism disclosed in the present invention, the backrest reinforcement mechanism is fixedly arranged on the front side and / or the rear side of the backrest portion of the child safety seat to enhance the strength of the backrest portion to resist deformation.

[0016] In one embodiment, the backrest reinforcement mechanism is a rear backrest reinforcement mechanism, which is installed on the rear side of the backrest portion in the form of a detachable reinforcement bracket.

[0017] In one embodiment, the reinforcement bracket is fixed to the rear side of the backrest portion by fasteners, and the lower end of the reinforcement bracket is installed at a position where the backrest portion is connected to the seat portion of the child safety seat, wherein the lower end of the reinforcement bracket is retractable relative to its upper end.

[0018] In one embodiment, the reinforcing bracket includes an operating component to operate the lower end of the reinforcing bracket to extend and retract relative to the upper end thereof.

[0019] In one embodiment, the backrest reinforcement mechanism is a rear backrest reinforcement mechanism, and 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 portion by fasteners, and have different extension directions respectively; wherein, the backrest reinforcement mechanism also includes at least one locking rod that can be slidably sleeved on the at least one second rod, and one end of the at least one locking rod extends and protrudes from the at least one second rod sleeved thereon, so that it can be removably installed to the corresponding position of the backrest portion.

[0020] In one embodiment, the backrest reinforcement mechanism is a rear backrest reinforcement mechanism, and includes an upper first rod and a lower first rod that are configured to be separated from each other; and a left second rod and a right second rod that are configured to be separated from each other, and the left second rod and the right second rod are respectively fixed to the upper first rod and the lower first rod, thereby forming a frame; the backrest reinforcement mechanism also includes two locking rods corresponding to the left second rod and the right second rod, and the two locking rods can be slidably connected and extended from the left second rod and the right second rod, respectively, so as to be removably installed to the backrest part.

[0021] In one embodiment, a connection hook having a locking hole is correspondingly provided on the lower side of the backrest portion, and the locking rod is inserted into the corresponding locking hole.

[0022] In one embodiment, a return spring is provided between the locking rod and the second rod sleeved therewith, and the return spring is used to apply a force to the locking rod to extend outward and insert into the corresponding locking hole.

[0023] In one embodiment, the locking rod is sleeved inside the second rod; a slide groove and a limiting hole located below the slide groove are provided on the second rod, and a pin is inserted into the limiting hole to position the upper end of the return spring; a spring receiving portion and a connecting hole located above the spring receiving portion are provided on the locking rod, and the lower end of the return spring is fixed on the spring receiving portion; and an operating component is inserted into the slide groove and the connecting hole to guide the locking rod to slide up and down along the slide groove.

[0024] In one embodiment, a limiting column is provided at the lower end of the spring receiving portion, the reset spring is sleeved on the limiting column, and an avoidance notch for avoiding the latch is provided at the upper end of the spring receiving portion.

[0025] In one embodiment, the backrest reinforcement mechanism is a front backrest reinforcement mechanism, which is detachably mounted on the front side of the backrest portion.

[0026] In one embodiment, the backrest reinforcement mechanism is a reinforcement sheet, and the shape of the reinforcement sheet matches the shape of the backrest portion. The reinforcement sheet is provided with a through hole for a fastener to pass through and be fixed to a fixing hole on the backrest portion, and the through hole is provided at the edge of the reinforcement sheet.

[0027] In one embodiment, the backrest reinforcement mechanism is a reinforcement sheet, which has a main body and an edge portion located around the main body, and at least one buffer portion is formed in the main body.

[0028] In one embodiment, the backrest reinforcement mechanism is a reinforcement sheet having a body, and the body is divided into four regions of up, down, left and right by vertical reference lines and horizontal reference lines, and one or more buffer parts are provided in each of the regions.

[0029] In one embodiment, the backrest reinforcement mechanism is a reinforcement plate, and the lower edge of the reinforcement plate is also provided with a clamping portion, the shape of the clamping portion matches the connecting hook at the lower end of the backrest portion, and the clamping portion has an opening, wherein a limiting rib is provided on the surface of the connecting hook facing the clamping portion, and the limiting rib passes through the opening correspondingly provided on the clamping portion to position the clamping portion on the connecting hook.

[0030] In one embodiment, the backrest reinforcement mechanism is a reinforcement sheet, which has a main body and a clamping portion connected to the lower end of the main body, and the wall thickness of the clamping portion is greater than or equal to the wall thickness of the main body.

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

[0032] In one embodiment, the clamping portion is fixed to the body by welding, and the wall thickness of the clamping 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, and the wall thickness of the engaging portion ranges from 1.6 mm to 2 mm.

[0034] In one embodiment, the backrest reinforcement mechanism has a body, and at least one buffer portion is formed in the body. The area occupied by the buffer portion is substantially symmetrically distributed on the surface of the body.

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

[0036] In one embodiment, the child safety seat further comprises: two side wings, respectively arranged on two side edges of the backrest portion and located above the armrests of the seat portion; and a headrest, arranged on the upper portion of the backrest portion.

[0037] In one embodiment, a connection hook with a locking hole is correspondingly provided on the lower side of the backrest portion, and the backrest reinforcement mechanisms are respectively inserted into the corresponding locking holes to be fixed to the backrest portion.

[0038] In one embodiment, there are recessed portions on both sides of the rear portion of the seat portion, and a clamping rod is arranged in the recessed portion, and the clamping rod and the recessed portion surround a clamping opening; the backrest body of the backrest portion is located above the clamping rod, and the connecting hook of the backrest portion first 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 clamping opening and bypass the clamping rod, and the connecting hook extension portion 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 a surface of the connecting hook facing the seat portion to position the backrest reinforcement mechanism.

[0040] According to the present disclosure, a connection assembly for a child safety seat is proposed, which includes: a connector body, which is connected to the shoulder straps and adjustment straps of the child safety seat; and a stopper, which is detachably connected to the connector body and can cover the disassembly opening of the shoulder strap to prevent the shoulder strap from falling off.

[0041] In one embodiment, the stopper has a stopper body and an anti-detachment portion, the stopper body is detachably connected to the connector body, and the anti-detachment portion is fixedly matched with the connector body to prevent detachment from the connector body.

[0042] In one embodiment, the connector body includes: a main body portion, which is used to connect with the adjustment strap; and an extension portion, which is connected to the main body portion, and the extension portion and the main body portion define a shoulder strap connection hole and a shoulder strap removal port, the shoulder strap connection hole is used to connect with the shoulder strap, and the shoulder strap removal port is connected to the shoulder strap connection hole and is used to remove the shoulder strap.

[0043] In one embodiment, an adjustment belt connection hole is provided on the main body, and the adjustment belt connection hole is used to connect with the adjustment belt.

[0044] In one embodiment, the extension portion extends in a transverse direction relative to the main body portion, and has a protrusion at an end portion of the extension portion, and the protrusion and the main body portion define a shoulder strap connecting hole and a shoulder strap detaching opening.

[0045] In one embodiment, the anti-dropping portion is configured as a hook, which is provided on an end side of the stopper body and is detachably connected to the protrusion of the extension portion.

[0046] In one embodiment, the hook is inserted into the shoulder strap connection hole at the shoulder strap detachment opening and abuts against the joint surface of the protruding portion facing the extending portion.

[0047] In one embodiment, the anti-detachment portion is configured as a buckle, and a corresponding snap-fitting recess is disposed on a side surface of the end portion of the extending portion, and the buckle is detachably snap-fitted to the snap-fitting recess.

[0048] In one embodiment, one of the buckle and the snap-fitting recess is provided with a fixing protrusion, and the other is provided with a fixing recess matched with the fixing protrusion.

[0049] In one embodiment, the anti-slip portion is constructed as a fixing protrusion protruding from the front and rear side walls of the stopper body toward the opposite side wall, and a fixing recess cooperating with the fixing protrusion is provided at the end; and / or the anti-slip portion is constructed as a fixing recess recessed from the front and rear side walls of the stopper body away from the opposite side wall, and a fixing protrusion cooperating with the fixing recess is provided at the end.

[0050] In one embodiment, the stopper is provided with a recessed portion at a position corresponding to the shoulder strap detachment opening, and the recessed portion is inserted into the shoulder strap detachment opening.

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

[0052] In one embodiment, the stopper body extends toward both ends along the longitudinal direction to form an anti-slip portion.

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

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

[0055] In one embodiment, the stopper body extends along the longitudinal direction toward the free end to form an anti-dropping portion.

[0056] In one embodiment, the stopper body is connected to the main body by a pivot connection.

[0057] In one embodiment, the stopper is configured as a sheet material, and the sheet material is used to be connected with the connector body and cover the disassembly opening.

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

[0059] In one embodiment, the material joining is adhesive bonding or welding.

[0060] According to the present disclosure, a child safety seat is also proposed, which includes: a connecting assembly according to the present disclosure; a seat; a backrest connected to the seat; an adjustment belt connected to the connecting assembly and the seat; and a shoulder strap connected to the connecting assembly and the backrest.

[0061] In one embodiment, a receiving recess is provided on the child safety seat for receiving the connecting assembly.

[0062] In one embodiment, the receiving recess is provided in a rear area of ​​the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 is a front perspective view of the child safety seat according to the first aspect of the present disclosure, wherein the side impact protection block is in a folded state;

[0064] Figure 2 is a front perspective view of a child safety seat according to the first aspect of the present disclosure, wherein a side impact protection block is in an unfolded state;

[0065] Figure 3 is a rear perspective view of the child safety seat according to the first aspect of the present disclosure, wherein the side impact protection block is in a folded state;

[0066] Figure 4 is a rear lower perspective view of a child safety seat according to the first aspect of the present disclosure, wherein a side impact protection block is in an expanded state;

[0067] Figure 5 is a side view of the child safety seat according to the first aspect of the present disclosure, wherein the side impact protection block is in a folded state;

[0068] Figure 6 is a side view of the child safety seat according to the first aspect of the present disclosure, wherein one side impact protection block is in an expanded state and the other side impact protection block is in a folded state;

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

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

[0071] Fig. 9 is a cross-sectional view through the side impact protection mechanism according to the first aspect of the present disclosure, wherein the side impact protection block is in an intermediate position between the folded state and the deployed state;

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

[0073] Fig.11 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 side of the backrest portion is provided with a front backrest reinforcement mechanism;

[0074] Fig.12 is a rear perspective view of a backrest portion of a child safety seat according to an embodiment of the second aspect of the present disclosure, wherein the back of the backrest portion is not provided with a cover plate;

[0075] Fig.13 is a rear perspective view of a backrest portion of a child safety seat according to an embodiment of the second aspect of the present disclosure, wherein the back of the backrest portion is provided with a cover plate;

[0076] Fig.14 is a seat portion according to an embodiment of the second aspect of the present disclosure;

[0077] Fig.15 is a front side view of a front back reinforcement mechanism according to an embodiment of the second aspect of the present disclosure;

[0078] Fig.16 yes Fig.15 A rear side view of the front back reinforcement mechanism shown;

[0079] Fig.17 is a front side view of a front back reinforcement mechanism according to another embodiment of the second aspect of the present disclosure;

[0080] Fig.18 is a front side view of a front back reinforcement mechanism according to another embodiment of the second aspect of the present disclosure;

[0081] Fig.19 is a front side view of a front back reinforcement mechanism according to another embodiment of the second aspect of the present disclosure;

[0082] Fig. 20 is a front side view of a front back reinforcement mechanism according to another embodiment of the second aspect of the present disclosure;

[0083] Fig.21 is a front perspective view of a backrest portion of a child safety seat according to another embodiment of the second aspect of the present disclosure;

[0084] Fig. 22 A child safety seat according to another embodiment of the second aspect of the present disclosure Fig.11 An exploded perspective view of the backrest portion and the front backrest reinforcement mechanism shown;

[0085] Fig.23 is a front view of a front back reinforcement mechanism according to another embodiment of the second aspect of the present disclosure;

[0086] Fig.24 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 side of the backrest has a different Figure 1 The front back reinforcement mechanism shown;

[0087] Fig.25 yes Fig.24 A front side view of the front side back reinforcement mechanism used in;

[0088] Fig.26 yes Fig.24 A rear side view of the front back reinforcement mechanism used in;

[0089] Fig. 27 is a rear perspective view of a backrest portion of a child safety seat according to an embodiment of the second aspect of the present disclosure, wherein the back of the backrest portion is provided with a cover plate;

[0090] Fig.28 is a three-dimensional diagram of a rear backrest reinforcement mechanism according to an embodiment of the second aspect of the present disclosure;

[0091] Fig.29 yes Fig.28 a perspective view of the rear back reinforcement mechanism shown with a second rod removed to facilitate showing the internal structure;

[0092] Fig.30 is a front view of a locking lever of a rear back reinforcement mechanism according to the second aspect of the present disclosure;

[0093] Fig.31A and Fig.31B Partially exploded perspective views of the rear backrest reinforcement mechanism according to the second aspect of the present disclosure are shown in different forms respectively;

[0094] Fig.32 is a three-dimensional diagram of a rear backrest reinforcement mechanism according to another embodiment of the second aspect of the present disclosure;

[0095] Fig.33 is a rear perspective view of a child safety seat according to an embodiment of the second aspect of the present disclosure, wherein the back of the backrest portion is provided with a rear backrest reinforcement mechanism;

[0096] Fig.34 yes Fig.33 A rear perspective view of the child safety seat from another angle;

[0097] Fig.35 Shows Fig.34 The rear backrest reinforcement mechanism of the child safety seat is in a released state during installation or removal;

[0098] Fig.36 A child safety seat according to a third aspect of the present disclosure is shown;

[0099] Fig.37 A side view of a connection assembly according to a first embodiment of the third aspect of the present disclosure is shown;

[0100] Fig.38 A perspective view of a connection assembly according to a first embodiment of the third aspect of the present disclosure is shown;

[0101] Fig.39 An exploded perspective view of a connection assembly according to a first embodiment of the third aspect of the present disclosure is shown;

[0102] Fig.40 A three-dimensional view of a stopper according to a first embodiment of the third aspect of the present disclosure is shown;

[0103] Fig.41 A front perspective view of a connection assembly according to a second embodiment of the third aspect of the present disclosure is shown;

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

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

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

[0107] Fig.45 A front perspective view of a connection assembly according to a third embodiment of the third aspect of the present disclosure is shown, with the stopper being opened;

[0108] Fig.46 A side perspective view of a connection assembly according to a third embodiment of the third aspect of the present disclosure is shown, with the stopper being opened;

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

[0110] Fig.48 An exploded perspective view of a connection assembly according to a third embodiment of the third aspect of the present disclosure is shown;

[0111] Fig.49 A perspective view of a connection assembly according to a fourth embodiment of the third aspect of the present disclosure is shown, with the stopper being opened;

[0112] Fig.50 A side view of a connection assembly according to a fifth embodiment of the third aspect of the present disclosure is shown;

[0113] Fig.51 An exploded perspective view of a connection assembly according to a fifth embodiment of the third aspect of the present disclosure is shown;

[0114] Fig.52 A side view of a connection assembly according to a sixth embodiment of the third aspect of the present disclosure is shown;

[0115] Fig.53 An exploded perspective view of a connection assembly according to a sixth embodiment of the third aspect of the present disclosure is shown;

[0116] Fig.54 A side view showing a connection assembly according to a seventh embodiment of the third aspect of the present disclosure; and

[0117] Fig.55 A disassembled stereoscopic view of a connection assembly according to a seventh embodiment of the third aspect of the present disclosure is shown.

[0118] Reference numerals list

[0119] 1. 1A Child safety seat

[0120] 1100 Side impact protection mechanism

[0121] 1110 Side impact protection block

[0122] 1111 dial button

[0123] 1112 Spring

[0124] 1113 Card Block

[0125] 11131 Installation end

[0126] 11132 Snap-on end

[0127] 1114 Housing

[0128] 1120 Fixed seat

[0129] 1121 Mounting holes

[0130] 1122 snap-in hole

[0131] 1123 Pivot

[0132] 1200 Wing (also called "wing section")

[0133] 1300 Backrest (also called "backrest")

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

[0135] 1500 Chairs (also known as "seats")

[0136] 1510 Chair armrests (also known as "seat armrests, armrests")

[0137] 1600 Clamp

[0138] 1700 Boot

[0139] 1800 Headrest (also known as "headrest, headrest part")

[0140] 2100, 2100A, 2100B, 2100C, 2100D, 2100E, 2100F Front back reinforcement mechanism (reinforcement sheet)

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

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

[0143] 21111B, 21111F First buffer

[0144] 21112B, 21112F Second buffer

[0145] 21113B, 21113C Third buffer

[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 snap-fit

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

[0153] 2122F Welding Department

[0154] 2130, 2130A, 2130B, 2130C, 2130D, 2130E, 2130F Edge

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

[0156] 2140 Wing

[0157] 2200 Flanking part (also called "flank")

[0158] 2210 Side wing foam

[0159] 2300, 2300A Backrest (also called "backrest")

[0160] 2310, 2310A Back to the main body

[0161] 2320, 2320A Connecting Hook

[0162] 2321 Limiting rib

[0163] 2322, 2322A Hook extension

[0164] 2323 Locking protrusion

[0165] 2323A Locking hole

[0166] 2330 Fixing hole

[0167] 2340, 2340A Cover

[0168] 2350 Joint

[0169] 2360 Positioning Department

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

[0171] 2500 Seating part (also known as "chair, seat part")

[0172] 2510 Seat armrests (also known as "chair armrests, armrests")

[0173] 2520 Cup Holder

[0174] 2530 Depression

[0175] 2540 Clamp

[0176] 2550 bayonet

[0177] 2600 Bootloader

[0178] 2700 Clamp

[0179] 2800 Rear side backrest reinforcement mechanism

[0180] 2810 First shot

[0181] 2820 Second Shot

[0182] 2830 First shot

[0183] 2840 Locking lever

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

[0185] 2842 Spring receiving part

[0186] 28421 Avoid the gap

[0187] 28422 Limiting column

[0188] 2850 Chute

[0189] 2860 Sliding parts (e.g. screws)

[0190] h1 limit hole

[0191] 2870 Latch

[0192] 2880 Return spring

[0193] 2890 Linkage

[0194] 2900 Headrest (also known as "headrest, headrest part")

[0195] 3100 Connector Body

[0196] 3110 Main body

[0197] 3111 Adjustment belt connection hole

[0198] 3112 Stopper connection hole

[0199] 3113 Fixed part

[0200] 3120 Extension

[0201] 3121 Shoulder strap connection hole

[0202] 3122 Disassembly port, shoulder strap disassembly port

[0203] 3123 end

[0204] 3124 Protrusion

[0205] 3125 snap-in recess

[0206] 3126 Fixed concave

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

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

[0209] 3132A, 3132B, 3132C, 3132F anti-drop part, 3132G inner surface

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

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

[0212] 3135B, 3135C Pivot Connector

[0213] 3136 Fixed part

[0214] 3200 Seat (also called "seat part, chair")

[0215] 3210 A-LOCK

[0216] 3220 Accommodating recess

[0217] 3300 Backrest (also called "backrest")

[0218] 3400 Headrest (also known as "headrest, headrest")

[0219] 3500 Adjustment belt

[0220] 3600 Shoulder Strap

[0221] 3700 Flanking part (also called "flank")

[0222] 3800 Opening

[0223] 3900 Armrests (also known as "seat armrests, chair armrests") DETAILED DESCRIPTION

[0224] Although the present invention is illustrated and described herein with reference to specific embodiments, the present invention should not be limited to the details shown. Rather, various modifications may be made to the details within the scope of equivalents of the claims and without departing from the present invention.

[0225] The directions "front", "back", "upper", "lower" and the like involved in this document are only for the convenience of understanding. The present invention is not limited to these directions, but can be adjusted according to actual conditions. Although the present disclosure has been described with reference to typical embodiments, the terms used are illustrative and exemplary rather than restrictive.

[0226] In the first aspect of the present disclosure, referring to Figures 1 to 6 The child safety seat 1 according to the present disclosure is generally described, and the child safety seat 1 includes a side impact protection mechanism 1100, a side wing 1200, a backrest 1300, a seat 1500, and a headrest 1800. Generally speaking, regarding the binding path of the vehicle seat belt, the child safety seat 1 has a Harness mode and a Booster mode, and the description of the binding path is specifically described below with respect to the embodiment.

[0227] More specifically, Figure 1 , Figure 2 A front perspective view of a child safety seat 1 of the present disclosure is shown, wherein: Figure 1 The side impact protection blocks 1110 of the two side impact protection mechanisms 1100 are in a folded state, and Figure 2 One of the side impact protection blocks 1110 is in the deployed state.

[0228] According to the present embodiment, the child safety seat 1 comprises a seat 1500 with a seat armrest 1510 for a child to sit on. A backrest 1300 is arranged above the seat 1500, and the backrest 1300 can be connected to the seat 1500. A headrest 1800 is arranged on the upper part of the backrest 1300, and can move up and down relative to the backrest 1300. The headrest 1800 comprises a headrest backrest and a headrest side wing. A guide 1700 is arranged at the backrest 1300 between the headrest side wing and the side wing 1200 of the child safety seat 1. The guide 1700 is arranged at the lower end of the headrest side wing. The guide 1700 is used to guide the shoulder belt of the vehicle safety belt (not shown) in the Booster mode of the child safety seat 1. In the present embodiment, a guide 1700 is respectively arranged on both sides of the child safety seat 1, 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.

[0229] A wing 1200 is provided on both sides of the backrest 1300, for example, the wing is located above the armrest 1510 of the seat 1500. The wing 1200 protrudes forward on both sides of the backrest 1300, and defines an opening 1400 through the wing 1200. In this embodiment, the wing 1200 and the side of the backrest 1300 define the opening 1400 together. At the connection between the backrest 1300 and the wing 1200, a clamp 1600 is provided on both sides of the upper back of the backrest 1300, for clamping the shoulder strap of the vehicle safety belt in the harness mode.

[0230] The child safety seat 1 according to the present disclosure includes a side impact protection mechanism 1100. In the present embodiment, two side impact protection mechanisms 1100 are respectively arranged on two sides of the backrest 1300. The side impact protection mechanism 1100 according to the present 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 installed on the backrest side of the opening 1400 by two screws on both sides. The side impact protection block 1110 has an unfolded state and a folded state. Figure 1 In the folded state shown in , the side impact protection block 1110 is located in the middle of the opening 1400, dividing the opening 1400 into two parts, the upper and lower parts, which are preferably not connected to each other, that is, after the side impact protection block 1110 is folded, the side impact protection block 1100 is basically in contact with the side wing 1200. Figure 2 In the unfolded state shown, the side impact protection block 1100 extends laterally on 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, so that the vehicle seat belt can be correctly passed through the opening 1400.

[0231] Generally, the vehicle safety belt for the child safety seat 1 has a shoulder belt and a waist belt. According to the binding path of the vehicle safety belt disclosed in the present invention, in the Harness mode, when the side impact protection block 1110 near the door side is in the unfolded state, the shoulder belt of the vehicle safety belt can sequentially pass through the clamp 1600 provided at the connection between the backrest 1300 and the side wing 1200 near the door side, and the upper part of the opening 1400 near the door side, and the waist belt of the vehicle safety belt passes through the lower part of the opening 1400 near the door side, and then passes through the lower part of the opening 1400 of the backrest 1300 away from the door side together with the shoulder belt, so as to be inserted and fixed with the safety belt buckle on the car seat. In the Booster mode, the shoulder strap of the vehicle safety belt passes through the guide 1700 on the door side between the backrest 1300 and the headrest 1800, and the bottom of the armrest 1510 on the door side, and the waist belt of the vehicle safety belt passes through the bottom of the armrest 1510 on the door side, and then passes through the bottom of the armrest 1510 on the door side together with the shoulder strap to be inserted and fixed with the seat belt buckle on the car seat.

[0232] refer to Figure 1 As shown, in the Harness mode, the shoulder strap of the vehicle safety belt must pass through the clip 1600 and then through the two openings 1400, and the waist belt only passes through the two openings, so that when the side impact protection block 1110 is not opened, the side impact protection block 1110 will be blocked at the opening 1400, so that the vehicle safety belt cannot be properly installed and fixed. At this time, the side impact protection block 1110 on the side close to the door must be actively opened before the vehicle safety belt or adult safety belt can be installed, so as to play the role of active misuse prevention of the side impact protection mechanism 1100. That is, according to the side impact protection mechanism 1100 disclosed in the present invention, it is arranged at the back side to divide the opening 1400 for the vehicle safety belt to pass through, that is, the side impact protection block 1110 is in conflict with or fits with the side wing 1200 when in the folded state, and the user can easily find that the side impact protection block 1110 is in the folded state and cannot play the role of preventing side impact.

[0233] like Figure 2 As shown, a side impact protection block 1110 is in an unfolded state, and the side impact protection block 1110 extends laterally from the side of the backrest 1300 without blocking the opening 1400, so that the vehicle safety belt can be passed through the opening 1400. At the same time, the side impact protection block 1110 in the unfolded state plays a role in preventing side impact.

[0234] Figure 3 FIG. 1 shows a rear perspective view of the child safety seat 1 according to the present disclosure, wherein the side impact protection block 1110 is in a folded state. Figure 1 Accordingly, Figure 3The left side impact protection block 1110 is fixedly arranged on the side of the backrest and divides the opening 1400 into two parts, the side impact protection block 1110 in the folded state creates an obstruction at the opening 1400, making it impossible to correctly install and fix the vehicle seat belt. Figure 3 It is also shown in detail that at the connection between the backrest 1300 and the side wing 1200, a clamp 1600 is respectively provided on both sides of the upper back side of the backrest 1300, so that the child safety seat 1 can be installed on both sides of the left and right sides of the rear seat of the car, which is convenient for installation and use.

[0235] Figure 4 is a rear lower perspective view of the child safety seat 1 according to the present disclosure. Figure 2 Accordingly, Figure 4 The left side impact protection block 1110 is in an unfolded state, in which the vehicle seat belt can be correctly installed without any obstacles.

[0236] Figure 5 , Figure 6 is a side view of a child safety seat 1 according to the present disclosure, wherein: Figure 5 The side impact protection block 1110 is in a folded state, and Figure 6 In the figure, one side impact protection block 1110 is in an extended state, and the other side impact protection block 1110 is in a folded state. In the side view, the fixing seat 1120 of the side impact protection mechanism 1100 is fixed to the side surface of the backrest 1300 approximately in the middle of the backrest 1300, and the fixing seat 1120 is particularly clamped between the front side and the rear side of the backrest 1300 on the side surface of the backrest.

[0237] Figure 7 to Fig.10 A side impact protection mechanism 1100 of the present disclosure is shown, wherein: Fig. 7A , Figure 7B , Figure 7C is a perspective view of a side impact protection mechanism 1100 according to the present disclosure, Fig.7D , Fig. 7E , Figure 7F is a side view of a side impact protection mechanism 1100 according to the present disclosure, Figure 8 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 a folded state, Fig. 9 is a cross-sectional view through a side impact protection mechanism 1100 according to the present disclosure, wherein the side impact protection block 1110 is in an intermediate position between the folded state and the deployed state, Fig.10 is a cross-sectional view through a side impact protection mechanism 1100 according to the present disclosure, wherein the side impact protection block 1110 is in a deployed state.

[0238] Fig. 7A , Figure 7B , Figure 7C The stereogram and Fig.7D , Fig. 7E , Figure 7F The side view shown shows the side impact protection mechanism 1100 according to the present disclosure from different perspectives. In this embodiment, the side impact protection mechanism 1100 has the side impact protection block 1110 and the fixing seat 1120, and the fixing seat 1120 is pivotally connected to the side impact protection block 1110. In addition, as shown in the figure, in order to be snap-fitted and fixed on the front and rear sides of the backrest 1300, the fixing seat 1120 has corresponding mounting holes 1121, such as screw holes, and two screw holes on each side of the fixing seat 1120 for screws to pass through to connect and fix with the backrest 1300.

[0239] Figure 8 , Fig. 9 , Fig.10 The cross-sectional view shows an exemplary specific structure of the side impact protection mechanism 1100, and sequentially shows the folded state of the side impact protection block 1110 ( Figure 8 ), in the middle position between the folded state and the expanded state ( Fig. 9 ), and the expanded state ( Fig.10 ). In this embodiment, it can be seen that the housing 1114 of the side impact protection block 1110 is pivotally arranged on the pivot portion 1123 of the fixing seat 1120. The inner side of the side impact protection block 1110 facing the child safety seat 1 has a dial button 1111, which is slidably installed in the housing 1114 and exposed outside the housing 1114 for operation. A block 1113 and a spring 1112 are also arranged in the housing 1114. The card block 1113 can slide in the shell 1114 and is fixedly connected to the button 1111, and has a mounting end 11131 away from the fixed seat 1120 and a locking end 11132 close to the fixed seat 1120, wherein a spring 1112 arranged between the inner wall of the shell 1114 and the mounting end 11131 of the card block 1113 cooperates with the mounting end 11131 to apply a force to push the locking end 11132 of the card block 1113 out of the shell 1114.

[0240] The pivot portion 1123 of the fixing seat 1120 is provided with an outwardly open engaging hole 1122. Figure 8 ) and the middle position ( Fig. 9 ), the engaging end 11132 of the block 1113 abuts against the outer circumference of the pivot portion 1123 and is retracted into the housing 1114. Fig.10), with the help of the force of the spring 1112, the engaging end 11132 of the block 1113 extends out from the shell 1114 and engages in the engaging hole 1122 of the fixing seat 1120, so that the side impact protection block 1110 is always maintained in the expanded state.

[0241] In order to fold the side impact protection block 1110 from the deployed state to the folded state, the user can push the dial button 1111 to overcome the force of the spring 1112, and the dial button drives the clamping block 1113 to retract into the housing 1114 so as to disengage from the clamping hole 1122. A torsion spring (not shown) is provided between the housing 1114 and the pivoting portion 1123, and the torsion spring applies a force to pivot the side impact protection block 1110 to the folded state and keeps the side impact protection block 1110 in the folded state.

[0242] To summarize, by arranging the side impact protection block 1110 on the side of the backrest, and when the side impact protection block 1110 is in the folded state, it interferes with the side wing 1200 to separate the opening 1400 between the side wing 1200 and the backrest 1300. In this way, when the vehicle seat belt is inserted, if the side impact protection block 1110 is not opened, the vehicle seat belt cannot pass through the opening correctly, that is, the vehicle seat belt cannot be installed correctly, thereby reminding the user to open the side impact protection block 1110 to ensure the side impact protection effect.

[0243] The present disclosure solves the technical problem that the user forgets to open the side impact protection block 1110 .

[0244] The vehicle safety belt can be correctly installed only by actively opening the side impact protection block 1110, thereby achieving the active prevention of misuse, improving the safety of the child safety seat 1, and providing better protection for children.

[0245] In a second aspect of the present disclosure, the present disclosure provides a backrest reinforcement mechanism on the backrest of the child safety seat, thereby enhancing the strength of the backrest and reducing its deformation, so as to reduce the horizontal displacement of the head when impacted. The reinforcement mechanism may have a sheet-like or plate-like structure, the shape of which matches the shape of the backrest, and the reinforcement mechanism is fixed to the backrest by screws. In addition, the reinforcement mechanism may also be a reinforcement bracket, which is provided on the back of the backrest and the lower end of which is movably connected to the backrest to limit the backrest, thereby reducing the deformation of the backrest, and further reducing the horizontal displacement of the head when impacted.

[0246] When the reinforcing mechanism has a sheet or plate structure, it can be a metal plate or a metal sheet, and can have various shapes, etc., and the present invention is not limited. In addition, by reinforcing the specific structure of the bracket and the limiting structure between it and the backrest, etc., the present invention solves the problem of excessive horizontal displacement of the head in the Harness mode.

[0247] Fig.11 2 is a front perspective view of a child safety seat 1 according to an embodiment of the present disclosure. The child safety seat 1 comprises a backrest portion 2300, a seat portion 2500 and a backrest reinforcement mechanism 2100. In this embodiment, the front side of the backrest portion 2300 is provided with a front backrest reinforcement mechanism 2100.

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

[0249] The child safety seat 1 further includes a headrest 2900, which is disposed on the upper portion of the backrest 2300 and can move up and down relative to the backrest 2300. A guide 2600 is disposed between the headrest 2900 and the backrest 2300, and the guide 2600 is used to guide the shoulder belt 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 bodies 2210 are respectively arranged on both sides of the backrest 2300, and the side wings 2200 are, for example, located above the seat armrest 2510 of the seat 2500. The side wings 2200 protrude forward on both sides of the backrest 2300, and define an opening 2400 for the vehicle safety belt to pass through through the side wings 2200. In this embodiment, the side wings 2200 and the side edges of the backrest 2300 jointly define the opening 2400. At the connection between the backrest 2300 and the side wings 2200, a clamp 2700 is respectively arranged on both sides of the upper back side of the backrest 2300, for clamping the shoulder straps of the vehicle safety belt in the harness mode.

[0251] In the Harness mode, the shoulder belt of the vehicle safety belt passes through the clamp 2700 provided at the connection between the backrest 2300 and the wing 2200 of the child safety seat 1, and the upper part of the opening 2400 near the backrest 2300 near the door for the vehicle safety belt to pass through, and the waist belt of the vehicle safety belt passes through the lower part of the opening 2400 near the door, and then passes through the lower part of the opening 2400 near the backrest away from the door together with the shoulder belt, so as to be inserted and fixed with the safety belt buckle on the car seat. In the Booster mode, the shoulder belt of the vehicle safety belt passes through the guide 2600 provided between the backrest 2300 and the headrest 2900, and the lower part of the armrest 2510 of the seat away from the door, and then passes through the lower part of the armrest 2510 of the seat away from the door together with the shoulder belt, so as to be inserted and fixed with the safety belt buckle on the car seat.

[0252] The front side backrest reinforcement mechanism 2100 is fixedly arranged in front of the backrest portion 2300 to ensure strength and limit the backrest portion 2300, so as to reduce the deformation of the backrest portion 2300 when impacted, thereby improving the horizontal displacement of the head. The front side backrest reinforcement mechanism 2100 is explained in detail later according to the drawings.

[0253] Fig.12 2 is a rear perspective view of a 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 on a backrest body 2310 of the backrest portion 2300 and a connecting hook 2320 connected to the lower side of the backrest body 2310 can be seen. A joint portion 2350 is provided on the backrest body 2310 and the connecting hook 2320. The joint portion 2350 can have different forms, such as a clamping portion, a convex block, etc. A limiting convex rib 2321 protruding toward the front side of the backrest portion is provided at the connecting hook 2320. The limiting convex rib 2321 cooperates with an opening provided on the front side backrest reinforcement mechanism 2100 to limit or pre-position the front side backrest reinforcement mechanism 2100. A positioning portion 2360 is also provided on the backrest body 2310, such as a positioning convex point protruding toward the front side of the backrest portion, for positioning the front side backrest reinforcement mechanism 2100.

[0254] Fig.13 FIG. 2 is a rear perspective view of a backrest portion 2300 of a child safety seat 1 according to an embodiment of the present disclosure. Fig.12 Different from the view shown in FIG. 2 , the back of the backrest 2300 has a cover plate 2340. Fig.12The corresponding device of the engaging portion 2350 shown in the figure, the cover plate 2340 covers the engaging portion 2350 and exposes the back-to-side fixing hole 2330. In addition, at the connecting hook 2320, the corresponding cover plate 2340 is fixedly connected with the front half of the connecting hook 2320 to close and constitute a complete connecting hook 2320.

[0255] Fig.14 The seat part 2500 is according to an embodiment of the present disclosure. The seat part 2500 is provided with a cup holder 2520, for example, on the front side of the seat, and two seat part armrests 2510 are provided on both sides of the seat. One end of the seat part armrest 2510 is connected to the seat part 2500, and the other end extends to the front of the seat. In this embodiment, two recessed parts 2530 are provided on the rear side of the seat part 2500, and a clamping rod 2540 is provided in each of the recessed parts 2530. The clamping rod 2540 and the recessed part 2530 surround a clamping port 2550, and the clamping rod 2540 and the clamping port 2550 are used for inserting and fixing the backrest body (detailed explanation below based on the drawings).

[0256] Fig.15 FIG. 2 is a front side view of a front back reinforcement mechanism 2100 according to an embodiment of the present disclosure. In the illustrated embodiment, the front back reinforcement mechanism 2100 is fixedly arranged on the front side of the backrest portion 2300 (see FIG. 21 ). Fig.11 ) is used to ensure the strength of the backrest portion. In the present embodiment, the front backrest reinforcement mechanism 2100 is designed as a reinforcement sheet, for example, a reinforcement iron sheet. However, the material of the reinforcement sheet can also be other metals, such as stainless steel, aluminum alloy, etc. The front backrest reinforcement mechanism 2100 is detachably arranged on the backrest portion 2300. For example, the shape of the reinforcement sheet matches the shape of the backrest portion 2300, and a through hole 2131 is provided on the reinforcement sheet for a fastener to pass through and be fixed to the fixing hole 2330 on the backrest portion 2300.

[0257] Furthermore, a fastener, such as a screw, can be used to pass through the through hole 2131 on the front backrest reinforcement mechanism 2100 to connect and fix with the fixing hole 2330 on the backrest portion, so as to fix the front backrest reinforcement mechanism 2100 to the backrest portion 2300. In this embodiment, the front backrest reinforcement mechanism 2100 is closely fitted with the backrest portion 2300, 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 through-holes 2131 are provided on the edge portion 2130, but the present invention is not limited thereto. As long as the reinforcing sheet can be fixed on the backrest portion 2300 and the function of the reinforcing sheet is not affected, one or more through-holes 2131 may be provided on the body 2110.

[0259] In addition, the reinforcing sheet is also provided with a clamping portion 2120 connected to the body 2110, and the clamping portion 2120 is located below the body 2110, and is attached to the connecting hook 2320 at the lower end of the backrest portion 2300 and extends and arches toward the front side of the seat, but the utility model is not limited thereto. The clamping portion 2120 and the backrest portion can be combined in a manner such as welding or clamping. As mentioned above, a limiting rib 2321 is provided on the surface of the connecting hook 2320 facing the clamping portion 2120, and the limiting rib 2321 passes through the opening 2121 correspondingly provided on the clamping portion 2120, so as to position the clamping portion 2120 on the connecting hook 2320, and position the backrest reinforcing mechanism 2100 on the front side of the backrest portion 2300. The wall thickness of the clamping portion 2120 can be greater than or equal to the wall thickness of the body 2110.

[0260] In one embodiment, the engaging portion 2120 and the main body 2110 are integrally formed, and the wall thickness of the reinforcing sheet may preferably range from 1.2 mm to 1.8 mm.

[0261] Reference Fig.15 In one embodiment, at least one buffer portion 2111 is formed in the body 2110. The buffer portion 2111 is formed by the front side (i.e., the surface facing the front side of the seat portion 2500) of the reinforcing sheet (e.g., the iron sheet) being recessed inwardly to form a concave portion. Fig.16 , Fig.16 yes Fig.15 The rear side view of the front back reinforcement mechanism 2100 is shown. The buffer portion 2111 protrudes from the back side of the body 2110 (ie, the surface facing the backrest portion 300). Different from the present embodiment, the back side of the front back reinforcement mechanism 2100 can also be a flat surface.

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

[0263] The shapes of the buffer parts 2111 are symmetrical and can be set to different shapes and sizes. For example, in this embodiment, the buffer parts 2111 in two adjacent areas are connected to form a triangle, but the utility model is not limited. In general, the size of the left and right buffer parts 2111 is smaller than the size of the upper and lower buffer parts 2111.

[0264] Specifically, the areas occupied by the plurality of buffer portions 2111 may be distributed roughly symmetrically (eg, vertically symmetrically and / or horizontally symmetrically) on the surface of the reinforcing sheet, and convex portions 2112 are formed between the buffer portions.

[0265] In other alternatives of the buffer portion 2111, the wall thickness of the reinforcing sheet ranges from 1.2 mm to 1.8 mm, and the difference lies in the different shapes and distributions of the ribs on the surface of the reinforcing sheet. In addition, the buffer portion 2111 can also be configured as a through portion that penetrates the reinforcing sheet body.

[0266] In a specific solution, the buffer parts 2111 can be interconnected and symmetrically distributed on the surface of the reinforcing iron sheet, or only one buffer part 2111 is provided, and the buffer part 2111 is composed of a plurality of interconnected sub-buffer parts on the reinforcing sheet body. In the case of only one buffer part 2111, the buffer part is also roughly point-symmetrical or axis-symmetrical, such as "X"-shaped, "I"-shaped or "H"-shaped, or symmetrically divergent, for dispersing stress. In this case, the recessed depth of the buffer part 2111 is preferably not more than 5 mm to ensure sufficient strength.

[0267] According to the present disclosure, when the child safety seat is hit, the buffer portion 2111 can be deformed to produce a buffering effect and reduce the overall weight.

[0268] In addition, a pre-positioning hole 2113 corresponding to the positioning portion 2360 on the backrest 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 convex point of the backrest portion 2300, and the position is not limited. In addition, the pre-positioning hole 2113 is provided as a through hole passing through the reinforcing sheet.

[0269] Fig.17 FIG. 2 is a front side view of a front back reinforcement mechanism 2100A according to another embodiment of the present disclosure. Fig.15 The difference of the embodiment is that the buffer portion 2111A is set as a long strip buffer portion 2111A extending up and down, and four long strip buffer portions 2111A are symmetrically arranged on the main body 110A of the reinforcing sheet. In addition, in this embodiment, no buffer portion 2111A is set as shown in FIG. Fig.15 , 16 The opening 2121A provided in the engaging portion 2120A can cooperate with the limiting convex rib 2321 on the connecting hook of the backrest portion to position the front backrest reinforcing mechanism 2100A and the backrest portion.

[0270] Fig.182 is a front view of a front back reinforcement mechanism 2100B according to another embodiment of the present disclosure. The main body 2110B can be roughly equally divided into four regions, namely, upper, lower, left and right regions, by a horizontal reference line L1 and a vertical reference line L2. One or more buffers 2111B can be provided in each region to disperse stress more evenly. Preferably, the buffers 2111B in each region can be distributed closer to the middle of the main body 2110B and farther from the corners. In this embodiment, the buffers 2111B in the two diagonally located 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 when impacted.

[0271] In detail, Fig.15 The difference of 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 back body 2110B, and a cross-shaped third buffer portion 21113B is provided on the convex portion 2112B formed between the first buffer portions 21111B. Specifically, the first buffer portion 21111B, the second buffer portion 21112B, and the third buffer portion 21113B are symmetrically arranged in pairs on the body 2110B.

[0272] Fig.19 FIG. 2 is a front side view of a front back reinforcement mechanism 2100C according to another embodiment of the present disclosure. Fig.18 The difference of the embodiment is that only one buffer portion 21113C is provided on the main body 2110C. However, different parts of the buffer portion 21113C are still roughly evenly distributed in different areas of the main body 2110. Further, the buffer portion 21113C may extend divergently from the middle area to the edge portion 2130C (or the 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 1113C may be a symmetrical cross, or an "X" shape.

[0273] Fig. 20 2 is a front view of a front back reinforcement mechanism 2100D according to another embodiment of the present disclosure. In this embodiment, multiple sub-buffers 2111D on the reinforcement sheet body are interconnected to form one or more buffers, and the one or more buffers are generally designed in a symmetrical divergent shape to better disperse stress. The areas occupied by the multiple buffers 2111D are roughly symmetrically distributed on the surface of the body 110D of the front back reinforcement mechanism 2100D, and the depth of the depression is no more than 5 mm.

[0274] Figure 21 to Figure 23 A view showing a backrest portion of a child safety seat 1 according to another embodiment of the present disclosure, wherein: Fig.21is a front perspective view of a backrest portion 2300 of a child safety seat 1 according to the present disclosure, wherein the front side of the backrest portion 2300 is provided with a front backrest reinforcement mechanism 2100E; Fig. 22 The child safety seat 1 according to the present disclosure Fig.21 An exploded perspective view of the backrest portion 2300 and the front backrest reinforcement mechanism 2100E is shown; Fig.23 is a front view of a front back reinforcement mechanism 2100E according to the present disclosure.

[0275] In this embodiment, a front back reinforcement mechanism 2100E is fixedly provided in front of the backrest portion 2300 to ensure the strength of the backrest portion 2300. The front back reinforcement mechanism 2100E is detachably provided on the backrest portion 2300. Further, a fastener, such as a screw, is used to pass through the through hole 2131E on the front back reinforcement mechanism 2100E to connect and fix with the fixing hole 2330 on the backrest portion 2300, so as to fix the front back reinforcement mechanism 2100E on the backrest portion 2300. In this embodiment, the front back reinforcement mechanism 2100E is closely fitted with the backrest portion 2300, so that the strength of the backrest portion 2300 can be better improved. For example, the shape of the reinforcement sheet matches the shape of the backrest portion 2300, and a through hole 2131E is provided on the reinforcement sheet for the fastener to pass through and be fixed to the fixing hole 2330 on the backrest portion 2300.

[0276] like Fig.23 As shown, the front back reinforcement mechanism 2100E is, for example, a reinforcement sheet with a left-right symmetrical configuration, such as a reinforcement iron sheet. However, the material of the reinforcement sheet 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, and at least one buffer portion 2111E is formed in the body 2110E. In this embodiment, the buffer portion 2111E can be a through portion that penetrates the body 2110E, and the area occupied by the buffer portion 2111E is roughly symmetrically distributed. For example, four through portions that penetrate the body 2110E are set in the body 2110E, and the perforations 2131E are set on the edge portion 2130E.

[0278] The reinforcing sheet is also provided with a snap-fitting portion 2120E connected to the body 2110E, and the snap-fitting portion 2120E is located below the body 2110E and is attached to the connecting hook 2320 at the lower end of the backrest portion 2300, extending and arching toward the front side of the seat. The snap-fitting portion 2120E and the backrest portion 2300 may be combined in a welding or snap-fitting manner, for example. As mentioned above, a limiting convex rib 2321 is provided on the surface of the connecting hook 2320 facing the snap-fitting portion 2120E, and the limiting convex rib 2321 passes through an opening 2121E correspondingly provided on the snap-fitting portion 2120E, so as to position the snap-fitting portion 2120E on the connecting hook 2320.

[0279] and Figures 11 to 20 Different from the embodiment of the present invention, the reinforcing sheet is additionally provided with winglets 2140, which are located on both sides below the front backrest reinforcing mechanism 2100E. The winglets 2140 and the edge portion 2130E are, for example, integrally formed and can be assembled to the backrest portion 2300 in a form-fitting manner. For example, a fastener can be used to fix the reinforcing sheet to the backrest portion 2300 through the through hole 2131E provided on the winglets 2140. By respectively providing the winglets 2140 on both sides below the reinforcing sheet, the stability of the front backrest reinforcing mechanism 2100E can be enhanced and the fit with the backrest portion 2300 can be enhanced, thereby significantly enhancing the strength of the backrest portion 2300.

[0280] Fig.24 is a front perspective view of a child safety seat 1 according to an embodiment of the present disclosure, wherein the front side of the backrest portion 2300 has a different Fig.11 The front side backrest reinforcement mechanism 2100F shown in the figure has different buffer parts on the body and is not provided with Fig.11 Pre-positioning hole 2113 as in. Fig.11 Differently, the engaging portion 2120F of the front back reinforcement mechanism 2100F is connected to the main body in a split manner.

[0281] Fig.25 yes Fig.24 The difference between the reinforcing sheet in this embodiment and the aforementioned embodiment is that the reinforcing sheet is split into a clamping portion 2120F and a main body 2130F, which are then connected into one piece by welding, and the wall thickness of the clamping portion 2120F is greater than the wall thickness of the main body 2110F.

[0282] This disclosure Fig.25Take an example to explain in detail, reinforcing sheets of other shapes and structures can also adopt this method. In one embodiment, the wall thickness of the main body 2110F (including its edge portion 2130F) is between 1.2mm-1.5mm, and the wall thickness of the clamping portion 2120F is between 1.6mm-2mm. In another embodiment, the wall thickness of the main body 2110F (including its edge portion 2130F) is between 1.2mm-1.8mm, and the wall thickness of the clamping portion 2120F is between 1.2mm-1.8mm. For example, the wall thickness of the main body 2110F (including its edge portion) can be 1.2mm, and the wall thickness of the clamping portion 2120F can be 2mm. When impacted, the clamping portion 2120F is subjected to greater stress, so the thickness of the clamping portion 2120F according to the present disclosure is designed to be thicker than the main body 2110F, so that its strength is higher. In this embodiment, after the main body 2110F and the engaging portion 2120F are processed separately, the two separate structures are connected into one by welding, and the material thereof is, for example, SPFH590. The materials of the main body 2110F and the engaging portion 2120F can also be different, that is, materials with different strengths can be selected. In this case, the thickness of the engaging portion 2120F may not be greater than the thickness of the reinforcing structure main body 2110F.

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

[0284] The second buffer portion 21112F located relatively below the first buffer portion 21111F is subjected to a special-shaped treatment, and extends to the lower edge of the reinforcing sheet to accommodate the split welded clamping portion 2120F. Specifically, the first buffer portion 21111F forms a triangle, and each first buffer portion 21111F is arranged around the third convex portion 21123F of smaller size, and the second buffer portion 21112F below is arranged around the second convex portion 21122F. The shape of the second convex portion 21122F is similar to an arrow shape, and extends downward to the lower edge of the reinforcing sheet 2100F, and together with the special-shaped edge of the second buffer portion 21112F, it forms a welding portion for fitting and welding the clamping portion 2120F. It should be noted that in this embodiment, the first to third convex portions 21121F, 21122F, and 21123F can also provide a buffering effect when impacted, thereby reducing the horizontal displacement of the head.

[0285] Fig.26 yes Fig.24 In this embodiment, the engaging portion 2120F is only welded to the front side of the reinforcing sheet 2100F, so that the engaging portion 2120F can better mechanically attach the body 2110F and the edge portion 2130F to the backrest portion 2300 stably, but the present disclosure is not limited thereto.

[0286] Fig. 27 FIG. 2 is a rear perspective view of a backrest portion 2300A of a child safety seat according to an embodiment of the present disclosure, wherein the back of the backrest portion 2300A is provided with a cover plate 2340A. Fig.13 Differently, the connecting hook 2320A has a connecting hook extension 2322A having a locking hole 2323A in the form of a through hole in the middle for locking the backrest body 2310A.

[0287] Figures 28 to 31A , Fig.31B A rear backrest reinforcement mechanism 2800 of 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 portion 2300, 2300A in the form of a detachable reinforcement bracket. The reinforcement bracket is fixed to the rear side of the backrest portion 2300, 2300A by fasteners, and the lower end of the reinforcement bracket, such as a locking rod 2840, is installed at the position where the backrest portion 2300, 2300A is connected to the seat portion 2500 of the child safety seat 1, 1A, wherein the lower end of the reinforcement bracket is retractable 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, and the first rod and / or the second rod are fixed to the rear side of the backrest portion 2300, 2300A by fasteners, and have different extension directions. Among them, at least one locking rod is sleeved on the corresponding second rod from the outside or from the inside, and can slide up and down relative to the sleeved second rod, and one end of at least one locking rod 2840 extends and protrudes from the sleeved at least one second rod 2820, so as to be detachably installed to the corresponding position of the backrest portion 2300, 2300A.

[0289] Fig.28 is a stereoscopic view of a rear backrest reinforcement mechanism 2800 according to an embodiment of the present disclosure. Fig.28In the embodiment shown, the rear side backrest reinforcement mechanism 2800 is designed as a bilaterally symmetrical reinforcement bracket. The rear side backrest reinforcement mechanism 2800 includes an upper first rod 2810, a lower first rod 2830 and two second rods 2820, i.e., a left second rod and a right second rod, which are arranged separately from each other. The left second rod and the right second rod are fixedly connected to the upper first rod 2810 and the lower first rod 2830 to form an approximately rectangular frame. In this embodiment, the two second rods 2820 are fixed to the upper first rod 2810 at the top side, and the length of the upper first rod 2810 can be greater than or equal to the spacing between the two second rods 2820, and 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 of the rear side backrest reinforcement mechanism 2800 are relatively 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 backrest 2300, 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 of the lower part of the backrest 2300, 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, and the left locking rod and the right locking rod are sleeved and extended from the lower ends of the left second rod and the right second rod respectively.

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

[0292] Optionally, the present disclosure may be provided with a return spring 2880, wherein a limiting hole h1 is provided on the second rod 2820 and is located below the slide slot 2850, and a latch 2870 is inserted into the limiting hole h1 to position the upper end of the return spring 2880, and the return spring 2880 always applies an outward extension force to the locking rod 2840. The return spring 2880 and the latch 2870 are used to keep the locking rod 2840 downward and positioned in the locking hole 2323A to prevent the locking rod 2840 from falling out, but they are not necessary elements.

[0293] Fig.29 yes Fig.28The three-dimensional view of the rear back reinforcement mechanism 2800 is shown, wherein a second rod 2820 is removed to facilitate the display of 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, a limit column 28422 is provided at the lower end of the spring receiving portion 2842, and the return spring 2880 is sleeved on the limit column 28422, and an avoidance notch 28421 for avoiding the latch 2870 is provided at the upper end of the spring receiving portion 2842.

[0294] Fig.30 2 is a front view of the locking rod of the rear backrest reinforcement mechanism 2800 according to the present disclosure. After removing the return spring 2880, it can be clearly seen that the lower end of the spring receiving portion 2842 is provided with a limit column 28422, and the upper end of the spring receiving portion 2842 is provided with an avoidance notch 28421 for avoiding the latch 2870. In addition, a connection hole 2841, such as a screw connection hole, for receiving the sliding member 2860 is provided above the spring receiving portion 2842.

[0295] Fig.31A and Fig.31B Partial exploded perspective views of the rear side backrest reinforcement mechanism 2800 according to the present disclosure are shown in different forms. Fig.31A It is understood that the sliding member 2860 can be inserted into the connecting hole 2841 of the locking rod 2840 through the outer side of the sliding groove 2850 to drive the locking rod 2840 to slide in the second rod 2820. The return spring 2880 is placed in the spring receiving portion 2842 and fixed at the lower end. Fig.31B The spring receiving portion 2842 is taken out of the spring receiving portion 2842, and its upper end is not fixed in the spring receiving portion 2842, but is limited by the pin 2870 inserted into the limiting hole h1.

[0296] Fig.32 FIG. 2 is a perspective view of a rear backrest reinforcement mechanism according to another embodiment of the present disclosure. Fig.28 The difference of the embodiment is that the operating assembly may further include a linkage rod 2890. The linkage rod 2890 may have two engaging portions, and the sliding member 2860 is disposed on the linkage rod 2890 through the two engaging portions. In detail, the sliding member 2860 passes through the linkage rod 2890 and is inserted into the slide groove 2850. By holding the linkage rod 2890 and sliding upward, the locking rods 2840 on both sides can be directly lifted together, so that the two locking rods 2840 can be synchronously extended and retracted, which is convenient for the locking operation and unlocking operation of the backrest. In this embodiment, the first rod 2830 can also be omitted.

[0297] In another embodiment, the operating assembly may also only include the linkage rod 2890, and the linkage rod 2890 has two engaging members. Each engaging member can be inserted into the corresponding connecting hole 2841 of the locking rod 2840 and the corresponding sliding groove 2850 of the second rod 2820. By holding the linkage rod 2890 and sliding upward, the locking rods 2840 on both sides can be lifted synchronously, which has a simple structure and is easy to operate.

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

[0299] The backrest body 2310A of the backrest portion 2300A is located above the latch rod 2540, and the connecting hook 2320A of the backrest portion 2300A first extends downward from the lower side of the backrest body 2310A and then preferably bends toward 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 and bypass the latch rod 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 basically horizontally, and 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, wherein the sliding member 2860 is at the lower end of the slide groove 2850 in this locked state.

[0300] Fig.34 yes Fig.33 Another perspective view of the rear side of the child safety seat 1A. Fig.34 It can be better seen that the locking rod 2840 of the backrest reinforcement mechanism 2800 penetrates the locking hole 2323A, so that the rear reinforcement mechanism 2800 and the backrest 2300A fixedly connected thereto are in a locked state.

[0301] Fig.35 Shows Fig.34 The rear backrest reinforcement mechanism 2800 of the child safety seat 1A is in a released state during installation or removal. In the released state, the sliding member 2860 slides to the top end in the slide groove 2850, and drives the locking rod 2840 to escape from the locking hole 2323A and retract into the second rod 2820. In this state, since the latch 2870 in the limiting hole h1 limits the upper side of the return spring 2880, as the lower end of the spring receiving portion 2842 of the locking rod 2840 moves upward, the return spring 2880 is compressed and pre-tightened. When the external force acting on the sliding member 2860 disappears, the spring force of the return spring 2880 causes the locking rod 2840 to automatically return to the above-mentioned locked state, that is, the locking rod 2840 is inserted into the locking hole 2323A.

[0302] Advantageously, according to the present disclosure, the bracket-type locking rod can be limited in the locking hole, has high strength, and will not break at the connection between the bracket and the seat portion or cause the locking rod to be separated from the locking hole when impacted.

[0303] In summary, when a child safety seat is hit, the force point is on the backrest, and the vehicle seat belt is asymmetrically fixed to the seat body. If the strength of the backrest is not enough, when the vehicle is impacted, the seat body will generate a torsion that deforms the backrest. Especially in Harness mode, the restraint force on the child will be weakened, causing the child to lean forward significantly, resulting in a large horizontal displacement of the head. By adding a reinforcement structure to the backrest to improve the strength of the backrest, the horizontal displacement of the head can be greatly improved. When the backrest reinforcement mechanism is a reinforcement plate, the structure is simple, easy to implement, and convenient for production and processing. When the backrest reinforcement mechanism is a reinforcement bracket, it has a better reinforcement effect and can better improve the horizontal displacement of the head.

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

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

[0306] In the Harness mode, the shoulder strap of the vehicle safety belt passes through the clamp (not shown) arranged 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 backrest 3300 close to the door for the vehicle safety belt to pass through. The waist belt of the vehicle safety belt passes through the lower part of the opening 3800 close to the door, and then passes through the lower part of the opening 3800 near the backrest 3300 away from the door together with the shoulder strap, so as to be inserted and fixed with the safety belt buckle on the car seat.

[0307] In the Harness mode, the vehicle safety belt is used to fix the child safety seat 1 on the vehicle seat. When riding, the child uses the shoulder belt 3600 (see Fig.37 ) is fixed in the child safety seat 1, and the shoulder strap 3600 is connected by the connecting member body 3100 and the adjustment belt 3500 (see Fig.37) is connected, the adjustment belt 3500 is used to adjust the shoulder belt 3600 according to the specific situation of the child, wherein the shoulder belt 3600 is guided from the front side of the child safety seat 1 to the rear side through the corresponding shoulder belt opening, and is connected to the adjustment belt 3500 through the connector body 3100 on the rear side of the backrest 3300, and the adjustment belt 3500 is then brought from the rear sides of the backrest 3300 and the seat 3200 to the front side of the child safety seat 1, and can be locked and released by, for example, A-LOCK3210 arranged at the front of the seat 3200.

[0308] In the Booster mode, the shoulder strap of the vehicle safety belt passes through the guide arranged between the backrest 3300 and the headrest 3400, and under the armrest 3900 on the side of the seat away from the door, while the waist belt of the vehicle safety belt passes through under the armrest 3900 on the side of the door, and then passes under the armrest 3900 on the side away from the door together with the shoulder strap, so as to be inserted and fixed with the seat belt buckle on the car seat.

[0309] In the Booster mode, the child is secured in the child safety seat 1 using the vehicle safety belt. In this case, the fixed connection between the shoulder strap 3600, the connector body 3100 and the adjustment belt 3500 specifically configured for the child safety seat 1 in the Harness mode can be disassembled, and the connector body 3100, for example, the T-shaped connecting piece or the T-shaped iron piece, used to connect the shoulder strap 3600 and the adjustment belt 3500 can be stored in the seat 3200. Fig.36 . For example, after the shoulder strap 3600 is disassembled, the connection assembly or only the connection body 3100 can be accommodated in the accommodation space or the accommodation recess 3220 provided on the upper rear side of the seat 3200. The accommodation recess 3220 is preferably provided in the rear area of ​​the seat 3200, that is, the area of ​​the rear side of the seat 3200 close to the backrest 3300, so that when the connection assembly is not needed, the connection assembly or only the connection body 3100 can be safely and concealedly accommodated in a specific position so as to be taken out and used again. In addition, it can also be considered that the accommodation recess 3220 can also be provided in other positions, such as the rear of the backrest 3300, and the accommodation recess 3220 can also be provided with, for example, a clamping device to fix the connection body 3100.

[0310] Fig.37 The figure shows a side view of a connection assembly according to the first embodiment of the present disclosure. The connection assembly according to the present disclosure comprises: a connection body 3100, which is connected to the shoulder strap 3600 of the child safety seat 1 and is connected to the adjustment belt 3500; and a stopper 3130A, which is connected to the connection body 3100 and can cover the disassembly opening 3122 of the shoulder strap 3600 to prevent the shoulder strap 3600 from coming out.

[0311] According to the present embodiment, the connector body 3100 includes a main body 3110, the main body 3110 is used to connect with the adjustment belt 3500, the main body 3110 is provided with an adjustment belt connection hole 3111, the adjustment belt connection hole 3111 is, for example, provided in the middle part of the main body 3110, the adjustment belt connection hole 3111 is used to connect with the adjustment belt 3500 and is, for example, designed as a transverse slot adapted to the shape of the adjustment belt 3500, and the adjustment belt 3500 can, for example, pass through the adjustment belt connection hole 3111 and connect with the adjustment belt 3500. Fig.36 The A-LOCK 3210 shown in FIG. 3 is connected to adjust, lock and release the adjustment strap 3500.

[0312] The connector body 3100 further includes an extension portion 3120 connected to the main body 3110. The extension portion 3120 and the upper side of the main body 3110 in the height direction define a shoulder strap connection hole 3121, and the extension portion 3120 and the left and right end sides of the main body 3110 define a shoulder strap removal opening 3122. The shoulder strap connection hole 3121 is used to connect with the shoulder strap 3600, and the shoulder strap removal opening 3122 is communicated with the shoulder strap connection hole 3121, and is used to remove the shoulder strap 3600 from the connector body 3100 through the shoulder strap removal opening 3122 when the booster mode is used, so as to, for example, store the connector body 3100. According to this embodiment, the extension part 3120 extends laterally to both sides relative to the main body 3110 at the upper end of the main body 3110 and forms a T-shaped shape with the main body 3110. The extension part 3120 defines a shoulder strap connection hole 3121 and a shoulder strap removal port 3122 with the main body 3110 by using a protrusion 3124 at the end 3123. The protrusion 3124 is formed by extending from the lower end of the end 3123 toward the main body 3110. According to the present disclosure, the outer shape of the connector body 3100 can be configured to be similar to an oval as a whole, so as to provide a compact and high-strength structural solution.

[0313] According to the present embodiment, the stopper 3130A has a stopper body 3131A, which is roughly in the shape of an elongated strip, whose shape is adapted to the shape of the lower side of the main body 3110, and is detachably connected, for example, snap-fitted, to the main body 3110 of the connector body 3100. The stopper 3130A also has an anti-slip portion 3132A. According to the present embodiment, the stopper body 3131A extends toward both sides along the longitudinal direction to form the anti-slip portion 3132A, and the anti-slip portion 3132A can cooperate with the end 3123 of the extension 3120 to prevent the shoulder strap 3600 from slipping out. According to the present embodiment, the anti-slip portion 3132A is configured as a hook, for example, an elastic spring, which is disposed on both end sides of the stopper body 3131A and is detachably connected to the protrusion 3124 on the end 3123 of the extension 3120 of the connector body 3100. The hook can be integrally formed with the stopper body 3131A, or can be separately formed.

[0314] For example, in Harness mode, the hook is elastically snapped into 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 opening 3122 and thus preventing the shoulder strap 3600 from escaping from 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, and if necessary, separate the stopper 3130A from the main body 3110 of the connector body 3100, so that the shoulder strap 3600 can be detached from the shoulder strap connection hole 3121 through the shoulder strap removal opening 3122. After the shoulder strap 3600 is removed, the connector body 3100 can be removed as shown in the figure. Fig.36 As shown, the stopper 3130A is stored in the receiving recess 3220 of the seat 3200, or stored in any possible position. If it is necessary to switch back to the harness mode from the booster mode, the user can first remove the stopper 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 opening 3122, the stopper 3130A is fixedly connected to the main body 3110. In this case, the hook is again connected to the upper side of the protrusion 3124 in a shape-fitting manner and provides a fixing force.

[0315] By utilizing the present disclosure, when the Harness use mode is converted into the Booster use mode, the shoulder strap fixing points of the Harness can be disassembled and restored after disassembly, that is, they will not be disassembled destructively, thereby saving costs.

[0316] According to another embodiment of the present disclosure, when a disassembly opening for the adjustment strap 3500 is provided, the stopper 3130A may also be provided to cover the disassembly opening of the adjustment strap 3500 to prevent the adjustment strap 3500 from escaping from the adjustment strap connecting hole 3111, but the present disclosure is not limited thereto.

[0317] Fig.38 FIG. 2 shows a perspective view of a connection assembly according to a first embodiment of the present disclosure, wherein the connection body 3100 and the stopper 3130 are in an assembled state. Fig.38 As shown, the anti-slip portion 3132A or the hook of the stopper 3130A is snapped onto the protrusion 3124 of the extension portion 3120 of the connector body 3100, for example, overlapped in a form-fitting manner, thereby closing the shoulder strap removal opening 3122 and preventing the shoulder strap 3600 in the shoulder strap connection hole 3121 from slipping out. In this embodiment, the stopper body 3131A of the stopper 3130A is configured as a groove, the lower side of the main body 3110 of the connector body 3100 is inserted into the groove, and the stopper 3130 is fixed to the main body 3110, for example, by elastic snapping 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 the present disclosure is not limited thereto.

[0318] Fig.39 FIG. 2 shows an exploded perspective view of a connection assembly according to a first embodiment of the present disclosure, wherein the connection body 3100 and the stopper 3130 are in a non-assembled state. Fig.39 As shown, the stopper 3130A can be made of a sheet material, such as an iron sheet, and the two ends of the sheet material form a hook-shaped anti-detachment portion 3132A for closing the shoulder strap removal port 3122, and the shape of the anti-detachment portion 3132A is adapted to the protrusion 3124. In order to insert the main body 3110, the two side portions of the sheet material can be bent upward to form a stopper body 3131A that is adapted to the shape of the lower side of the main body 3110. With this embodiment, the stopper 3130A can be implemented with a simple sheet material and processing technology, so that the cost is low and it is easy to manufacture.

[0319] Fig.40 A three-dimensional view of a stopper 3130A according to the first embodiment of the present disclosure is shown. The stopper body 3131A having a bottom and two side walls and the hook-shaped anti-detachment portions 3132A at both ends of the stopper 3130A can be better seen. According to this embodiment, the hook-shaped anti-detachment portions 3132A are integrally formed with the stopper body 3131A, but the present disclosure is not limited thereto.

[0320] Fig.41A front stereogram of a connection assembly according to a second embodiment of the present disclosure is shown. According to this embodiment, the stopper 3130B includes a stopper body 3131B and an anti-slip portion 3132B, and the stopper body 3131B extends toward the free end along the longitudinal direction to form the anti-slip portion 3132B. The stopper body 3131B is pivotally connected to the main body 3110 of the connector body 3100 through a pivoting coupling 3135B, such as a pin, for example, connected to the left and right ends of the main body 3110. The anti-slip portion 3132B is configured as a buckle, which can be integrally formed with the stopper body 3131B, and the anti-slip portion 3132B is detachably snap-fitted to the end 3123 of the extension portion 3120. According to one embodiment, the anti-slip portion 3132B can be pivoted to a snap-fitting recess 3125 provided on the end 3123, and the snap-fitting recess 3125 is, for example, a notch, and its shape is adapted to the anti-slip portion 3132B. The snap-fit ​​recess 3125 may also form a flange for the anti-detachment portion 3132B, which may prevent the anti-detachment portion 3132B from being excessively pivoted and thereby moving upward over the end portion 3123 and reaching the upper side of the end portion 3123 .

[0321] Fig.42 : A side perspective view of a connection assembly according to a second embodiment of the present disclosure is shown. The stopper 3130B is provided with a recessed portion 3133B corresponding to the shoulder strap removal opening 3122 of the connection body 3100. It can be seen that the recessed portion 3133B is symmetrically provided on the stopper body 3131B of the stopper 3130B, for example, which is configured as a stopper 3130B having a bottom and two side walls, so that the shoulder strap removal opening 3122 can be adapted in shape.

[0322] Fig.43 A front stereogram of a connection assembly according to a third embodiment of the present disclosure is shown. According to this embodiment, the stopper 3130C includes a stopper body 3131C and an anti-slip portion 3132C, and the stopper body 3131C extends toward the free end along the longitudinal direction to form the anti-slip portion 3132C. The stopper body 3131C is pivotally connected to the main body 3110 of the connector body 3100 through a pivoting coupling 3135C, such as a pin, for example, connected to the main body 3110 along the front-back direction. The anti-slip portion 3132C is configured as a buckle, which can be integrally formed with the stopper body 3131C, and the anti-slip portion 3132C is detachably snap-fitted to the end 3123 of the extension 3120. According to one embodiment, the anti-slip portion 3132C can be pivoted to a snap-fitting recess 3125 provided on the end 3123, and the snap-fitting recess 3125 is, for example, a notch, and its shape is adapted to the anti-slip portion 3132C. The end portion 3123 may form a flange for the anti-detachment portion 3132C, which is disposed on the upper side of the snap-fit ​​recess 3125 . The flange may prevent the anti-detachment portion 3132C from being excessively pivoted and thereby passing over the end portion 123 .

[0323] Additionally or alternatively, according to the present disclosure, a recessed portion 3133C may be provided on the stopper body 3131C, for example, the recessed portions 3133C may be symmetrically provided on the front and rear sides of the stopper body 3131C, and the recessed portions 3133C may be adapted to the size of the shoulder strap removal opening 3122 so as to be inserted into the shoulder strap removal opening 3122, thereby positioning the stopper 3130C more firmly and more shape-fittingly in a position to prevent the shoulder strap 3600 from falling off.

[0324] The settings of this embodiment can refer to Figures 41 to 42 The second embodiment is shown.

[0325] Different from the second embodiment, this embodiment is additionally provided with a fixing protrusion 3134C on the top of the anti-detachment portion 3132C. The fixing protrusion 3134C can cooperate with the corresponding structure in the snap-fitting recess 3125 to provide additional fixing force, thereby achieving a more secure fixation.

[0326] Fig.44 31 shows a side perspective view of a connection assembly according to a third embodiment of the present disclosure. It can be clearly identified that the fixing protrusion 3134C disposed on the top of the anti-detachment portion 3132C can be snapped into the corresponding structure on the snap-in recess 3125 of the extension portion 3120. In addition, it can be seen that the recessed portion 3133C is symmetrically disposed on the front and rear sides of the stopper body 3131C of the U-shaped stopper 3130C, so that the shoulder strap removal opening 3122 can be adapted in shape.

[0327] Fig.45 1 is a front perspective view of a connection assembly according to a third embodiment of the present disclosure. In this embodiment, the stopper 3130C is used, for example, by a tool to disengage the anti-detachment portion 3132C from the engaging recess 3125 and then pivots downward around the axis of the pivoting connector 3135C, thereby opening the closed shoulder strap disassembly port 3122. Fig.45 In the figure, it can be seen that the fixing recess 3126 corresponding to the fixing protrusion 3134C is located in the clamping recess 3125 of the extension part 3120. According to this embodiment, the fixing recess 3126 is configured as a through groove. The fixing recess 3126 can also be configured as a non-through pit corresponding to the shape of the fixing protrusion 3134C, and the present disclosure is not limited to this. According to this embodiment, a large force needs to be applied to open the stopper 3130C, for example, a tool needs to be used to open it, so that the stopper 3130 can prevent the shoulder strap 3600 from coming out of the shoulder strap connection hole 3121 to the greatest extent.

[0328] Fig.46 A side perspective view of a connection assembly according to a third embodiment of the present disclosure is shown, with the stopper 3130C being opened. Fig.46From the inside of the stopper 3130C, it can be seen that the fixing protrusion 3134C provided on the anti-detachment portion 3132C protrudes toward the inside of the stopper 3130C, so that it can be snapped into the fixing recess 3126 provided in the snapping recess 3125, so as to further provide a fixing force, thereby preventing the stopper 3130C from accidentally releasing the shoulder strap detachment opening 3122. In addition, the structure of the recessed portion 3133C can be better seen, which is recessed from both sides of the stopper body 3131C, thereby adapting to the shape of the shoulder strap detachment opening 3122 and facilitating the engagement and disengagement of the stopper 3130C and the end portion 3123, and can advantageously provide additional fixing force.

[0329] Fig.47 A partial cross-sectional view of a connection assembly according to a third embodiment of the present disclosure is shown. Fig.47 The stopper 3130C is shown to be cut open, wherein the anti-slip portion 3132C may not be in integral contact with the snap-in recess 3125 , but may be snap-in with the fixing recess 3126 only by means of the fixing protrusion 3134C. Fig.48 It can also be seen that the stopper coupling hole 3112 is provided in the main body 3110, which is used to insert the pivot coupling member 3135C, such as a pin, so that the stopper 3130C can pivot around its axis.

[0330] Fig.48 The exploded perspective view of the connection assembly according to the third embodiment of the present disclosure is shown. The stopper 3130C can be processed from two long strips of sheet material, for example, and the corresponding two ends of each long strip of sheet material are provided with corresponding through holes for the pivotal connection member 3135C to pass through. The pivotal connection member 3135C passes through the stopper connection hole 3112 in the installed state.

[0331] Fig.49 FIG. 4 shows a perspective view of a connection assembly according to a fourth embodiment of the present disclosure, wherein the stopper 3130D is opened. Fig.49As shown, a fixing protrusion 3134D is provided as an anti-slip portion on the inner side of the stopper 3130D, preferably two fixing protrusions are symmetrically provided on the front and rear inner side walls of the free end of the stopper 3130D, and fixing recesses 3126 corresponding to the fixing protrusion 3134D are respectively provided on the front and rear sides of the end 3123 of the extension portion 3120 of the connector body 3100. According to this embodiment, the fixing recess 3126 is configured as a pit. Of course, the fixing protrusion can also be provided on only one of the front and rear inner side walls of the free end of the stopper 3130, or the fixing protrusion can be asymmetrically (in number or position) provided on the front and rear inner side walls of the free end of the stopper 3130D, and the present invention is not limited thereto. According to this embodiment, when the stopper is engaged with the connector body, a large force needs to be applied to open the stopper 3130D, for example, a tool needs to be used to open it, so that the stopper 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, the fixing protrusion 3134D is disengaged from the end 3123 by a tool, and the stopper 3130D is pivoted downward around the axis of the pivoting connector 3135D, thereby opening the closed shoulder strap detachment opening 3122. In addition, the structure of the recessed portion 3133D can be better seen, which is recessed from both sides of the stopper body 3131D, thereby adapting to the shape of the shoulder strap detachment opening 3122 and providing additional fixing force. Due to the curved shape of the recessed portion 3133D, it can have a certain elasticity, that is, it can be deformed when the stopper 3130D is pivoted upward to the end 3123, so that the fixing protrusion 3134D is engaged with the fixing recess 3126 at the end 3123, and then recover after being engaged, so that the engagement between the fixing protrusion 3134D and the fixing recess 3126 is more stable.

[0332] Fig.50 The figure shows a side view of the assembled state of the connection assembly according to the fifth embodiment of the present disclosure. According to the present embodiment, the stopper body 3131E of the stopper 3130E is configured to extend toward both ends along the longitudinal direction to form an anti-slip portion so as to detachably connect the end 3123. The shape of the stopper body 3131E is adapted to the shape of the lower part of the main body 3110 and the extension 3120 of the connector body 3100. When the stopper 3130E is fixedly engaged with the connector body 3100, the stopper 3130E covers the shoulder strap disassembly opening 3122 to prevent the shoulder strap 3600 from coming out of the disassembly opening 3122. Other fixing means can be provided between the inner side of the stopper body 3131E and the main body 3110 and the extension 3120 to form an anti-slip portion, thereby enhancing the fixing force between the stopper 3130E and the connector body 3100.

[0333] Fig.51The exploded perspective view of the connection assembly according to the fifth embodiment of the present disclosure is shown. According to this embodiment, the anti-slip portion is constructed as a fixing protrusion 3134E protruding from the front and rear side walls of the stopper body 3131E to the opposite side wall, and the end 3123 is provided with a fixing recess 3126 that cooperates with the fixing protrusion 3134E, preferably at least one fixing recess 3126 is provided on each of the two end portions 3123 to provide a symmetrical fixing point. Specifically, the stopper body 3131E and the end portion 3123 can have mutually engaged anti-slip portions, such as a fixing protrusion 3134E and a corresponding fixing recess 3126, on the opposite connection surfaces. In this embodiment, the stopper body 3131E of the stopper 3130E is provided with inwardly protruding fixing protrusions 3134E at both ends of the inner side, and correspondingly, fixing recesses 3126 are provided on both sides (only the front side can be seen in this figure) of the end 3123 of the extension 3120 of the connector body 3100 to achieve fixed connection between the stopper 3130E and the connector body 3100. For example, it can also be provided that the anti-detachment portion is constructed as a fixing recess that is recessed from the front and rear side walls of the stopper body 3131E away from the opposite side wall, and the end 3123 is provided with a fixing protrusion that matches the fixing recess.

[0334] In this embodiment, other fixing methods may also be provided between the stopper 3130E and the end portion 3123 or the lower side portion of the connector body 3100, such as bonding, plug-in, etc., but the present disclosure is not limited thereto.

[0335] Fig.52 FIG. 4 shows a side view of a connection assembly according to a sixth embodiment of the present disclosure. According to this embodiment, the stopper 3130F is constructed similar to Figures 41 to 48 The buckle shown, i.e., the anti-detachment portion 3132F, is in the form of a buckle, which is detachably engaged with the end 3123 of the extension portion 3120 of the connector body 3100. A fixing portion 3136 is provided on the stopper body 3131F of the stopper 3130F, and the fixing portion 3136 is fixedly connected to the main body 3110 of the connector body 3100, for example, by shape-fitting engagement, or fixedly connected in other ways.

[0336] Through this embodiment, after being removed from the connector body 3100, the stopper 3130F can be easily connected again, for example, snapped onto the connector body 3100, so that the connection assembly can be restored advantageously and conveniently while reducing the number of components.

[0337] Fig.53The exploded perspective view of the connection assembly according to the sixth embodiment of the present disclosure is shown. As can be seen from the figure, a fixing portion 3113 correspondingly connected to the fixing portion 3136 is provided on the lower side of the main body 3110 of the connector body 3100 in the height direction, so that the connector body 3100 and the stopper 3130F can be easily fixed. In this embodiment, the snap connection between the fixing protrusion 3134F and the fixing recess 3126, the arrangement of the recess 3133F and the shoulder strap disassembly port 3122, etc. can refer to other embodiments and will not be repeated here.

[0338] Fig.54 1 shows a side view of a connection assembly according to a seventh embodiment of the present disclosure. According to this embodiment, the stopper 3130G is configured as a sheet that can be disassembled by a tool, such as adhesive tape, a plastic sheet, a metal sheet, etc. The disassembly opening 3122 is now covered by the sheet to prevent the shoulder strap 3600 from falling 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 stopper 3130G may be adhesive tape, which may be pasted on the T-shaped iron sheet to cover the disassembly opening 3122 to prevent the shoulder strap 3600 from coming out of the disassembly opening 3122, and a mark for cutting with scissors may be printed on the outer surface 3131G of the adhesive tape, for example, to remind the user that scissors are needed to cut if the shoulder strap 3600 needs to be removed. According to this embodiment, no additional parts are required, which not only reduces the cost but also makes installation more convenient.

[0340] Fig.55 An exploded stereogram of a connection assembly according to a seventh embodiment of the present disclosure is shown. According to this embodiment, for example, the stopper 3130G is deformed to cover the disassembly opening 3122. The stopper 3130G can preferably be folded from a piece of adhesive tape. In Booster mode, the adhesive tape can be unfolded and stored, or it can be discarded and replaced with a replacement adhesive tape, so that the cost is lower and meets the requirements. The inner surface 3132G of the stopper 3130G is used to engage with the connector body 3100 to prevent the stopper 3130G from detaching from the connector body 3100. The engagement is, for example, bonding, welding, etc.

[0341] According to the present disclosure, a stopper is provided, and the stopper is used to be connected to the connector body 3100 connecting the shoulder strap 3600 and the adjustment belt 3500, for example, on a T-shaped iron sheet, and the disassembly opening of the T-shaped iron sheet is sealed by the stopper itself by, for example, elastic force, clamping force, adhesive force, etc., so as to prevent the shoulder strap 3600 from falling out when in the Harness use mode, thereby ensuring the normal function of the Harness use mode; and, after disassembly, it can be restored under the action of its own elastic force or its own structure or under the action of other fixed connection methods, without causing damage to the stopper.

[0342] Since the present disclosure can be embodied in a variety of forms without departing from the spirit and substance of the present disclosure, it should be understood that the above-mentioned 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, and therefore all changes that fall within the scope of the claims or their equivalents should be covered by the claims.

Claims

1. A side impact protection mechanism (1100), characterized in that: The side impact protection mechanism (1100) is arranged on the side of the backrest (1300) of the child safety seat (1) and is positioned at an opening (1400) on the child safety seat (1) for the vehicle safety belt to pass through. The side impact protection mechanism (1100) comprises: The side impact protection block (1110) is pivotally arranged on the side of the backrest (1300) and has an unfolded state and a folded state. In the folded state, the side impact protection block (1110) blocks the opening (1400) to prevent the vehicle safety belt from being inserted. In the unfolded state, the side impact protection block (1110) extends laterally from the side of the backrest (1300) without blocking the opening (1400), so that the vehicle safety belt can be passed through the opening (1400).

2. The side impact protection mechanism (1100) according to claim 1, characterized in that: Side wings (1200) protruding forward are respectively arranged on two side surfaces of the backrest (1300), and the opening (1400) is defined by the side wings (1200), or is defined by the side wings (1200) and the backrest (1300).

3. The side impact protection mechanism (1100) according to claim 1, characterized in that: In the folded state, the side impact protection block (1110) is located in the middle of the opening (1400), dividing the opening (1400) into two upper and lower parts that are not connected to each other.

4. The side impact protection mechanism (1100) according to any one of claims 1 to 3, characterized in that: The side impact protection mechanism (1100) has a fixed seat (1120) pivotally connected to the side impact protection block (1110); the fixed seat (1120) is fixedly installed on the back side of the opening (1400) and has a pivoting portion (1123); the side impact protection block (1110) can be pivotally arranged on the pivoting portion (1123).

5. The side impact protection mechanism (1100) according to claim 4, characterized in that: The side impact protection block (1110) comprises: a housing (1114), the housing (1114) being pivotally disposed on the pivot portion (1123); A dial button (1111) is slidably mounted in the housing (1114) and exposed outside the housing (1114) for operation; A card block (1113) is slidably mounted in the housing (1114) and fixedly connected to the dial button (1111), wherein the card block (1113) has a mounting end (11131) and a locking end (11132); and The spring (1112) is arranged between the inner wall of the housing (1114) and the mounting end (11131) of the clamping block (1113), and applies a force to push the clamping end (11132) of the clamping block (1113) out of the housing (1114).

6. The side impact protection mechanism (1100) according to claim 5, characterized in that: The pivot portion (1123) of the fixing seat (1120) is provided with a snap-fitting hole (1122) open outwards. In the folded state, the engaging end (11132) of the engaging block (1113) abuts against the outer circumference of the pivot portion (1123) and is retracted into the housing (1114). In the unfolded state, the engaging end (11132) of the engaging block (1113) extends out from the housing (1114) and engages in the engaging hole (1122) of the fixing seat (1120), and by overcoming the action force of the spring (1112), the push button (1111) can drive the engaging block (1113) to retract into the housing (1114) so ​​as to disengage from the engaging hole (1122).

7. The side impact protection mechanism (1100) according to claim 6, characterized in that: A torsion spring is provided between the housing (1114) and the pivoting portion (1123), and the torsion spring applies a force that causes the side impact protection block (1110) to pivot to a folded state.

8. A child safety seat (1), characterized in that: The child safety seat (1) comprises: Seats (1500); A backrest (1300) disposed above the seat (1500); Two side wings (1200) are respectively arranged on two side edges of the backrest (1300) and are located above the armrests (1510) of the seat (1500); and The side impact protection mechanism (1100) according to any one of claims 1 to 7 is arranged on a side of the backrest (1300).

9. The child safety seat (1) according to claim 8, characterized in that: A side impact protection mechanism (1100) is respectively arranged on two side surfaces of the backrest (1300).

10. The child safety seat (1) according to claim 8, characterized in that: The child safety seat (1) has a Harness mode and a Booster mode. In the Harness mode, when the side impact protection block (1110) is in the unfolded state, the shoulder strap of the vehicle safety belt can sequentially pass through the clamp (1600) provided at the connection between the backrest (1300) and the side wing (1200), and the upper part of the opening (1400), and the waist belt of the vehicle safety belt passes through the lower part of the opening (1400), and then passes through the lower part of the opening (1400) on the other side of the backrest (1300) together with the shoulder strap, so as to be inserted and fixed with the safety belt buckle on the car seat; In the Booster mode, the shoulder strap of the vehicle safety belt passes through the guide (1700) arranged between the backrest (1300) and the headrest (1800) and the bottom of one armrest in sequence, and the waist belt of the vehicle safety belt passes through the bottom of the other armrest and then passes through the bottom of the one armrest together with the shoulder strap to be inserted and fixed with the safety belt buckle on the car seat.

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