Child safety seats

Abstract

The present disclosure provides a child safety seat. The child safety seat comprises: a seat; a support plate, which is arranged at the front end of the seat and can slide and retract relative to the seat; and a base, which is used to place the seat. The support plate comprises a support plate body and a first connecting member, one end of which is fixed to the support plate body. The other end of the first connecting member extends from the support plate body and is inserted and matched with the seat, so that the support plate can be slidably connected to the seat. The support plate according to the present disclosure can be used in conjunction with different vehicle models, and can provide a larger leg room for the children riding therein, thereby providing a safer and more comfortable feeling.

Description

Technical Field

[0001] The present disclosure relates to the field of children's products, in particular to a child safety seat, and more particularly to a seat angle adjustment mechanism and a child safety seat with the seat angle adjustment mechanism. Background Art

[0002] In recent years, with increasing attention paid to children's travel safety, more and more people choose to use child safety seats, in which the front end of the child safety seat may be provided with a support plate to abut against the backrest of the car seat when the seat is used rearward to prevent the child safety seat from tipping over.

[0003] In addition, some child safety seats are also provided with a seat angle adjustment mechanism to provide different seat angles for the child sitting in the child safety seat. Utility Model Content

[0004] The purpose of the utility model is to provide a support plate that can be used in conjunction with different vehicle models.

[0005] In one embodiment, the present disclosure provides a child safety seat. The child safety seat comprises: a seat; a support plate disposed at the front end of the seat and capable of sliding and retracting relative to the seat; and a base for placing the seat. The support plate comprises a support plate body and a first connecting member, one end of which is fixed to the support plate body. The other end of the first connecting member extends from the support plate body and is inserted and fitted with the seat, so that the support plate can be slidably connected to the seat.

[0006] In one embodiment, a second connecting member is disposed on the upper surface of the support plate body, and the second connecting member is slidably fitted with the lower surface of the seat portion, wherein the second connecting member is a guide rib or a guide groove.

[0007] In one embodiment, the support plate is provided with a support plate adjustment mechanism for adjusting the length of the support plate extending from the seat. The support plate adjustment mechanism comprises: a positioning structure movably provided on the support plate body so as to position the support plate at at least one position of the seat.

[0008] In one embodiment, the positioning structure includes a first locking member, which is arranged at the support plate body and can move between a locked position and an unlocked position. A second locking member is arranged on the lower surface of the seat. A through hole is formed on the upper surface of the support plate body. The engaging end of the first locking member can extend and retract from the through hole to engage and disengage the second locking member.

[0009] In one embodiment, the first locking member is a positioning hook pivotally connected to the lower surface of the support plate body, and the positioning hook can be pivoted so that when in the locked position, the engagement end extends from the upper surface of the support plate body, but when in the unlocked position, the engagement end retracts into the support plate body.

[0010] In one embodiment, the first locking member is a positioning pin, and the second locking member is a positioning hole.

[0011] In one embodiment, a plurality of the second locking members are arranged along the front-rear direction of the seat. The positioning structure further comprises an elastic member, which is arranged to bias the first locking member toward a direction of extending out of the through hole.

[0012] In one embodiment, the support plate adjustment mechanism further comprises an operating mechanism, and the operating mechanism is at least partially movably disposed on the support plate. The operating mechanism comprises: an operating member, which is slidably disposed on the support plate and can slide between a locking position and a release position. When the operating member is in the locking position, the operating member drives the positioning structure to lock the support plate and the seat portion to limit the movement of the support plate relative to the seat portion. When the operating member is in the release position, the operating member drives the positioning structure to release the lock to allow the support plate to move relative to the seat portion.

[0013] In one embodiment, the first connecting member includes two connecting rods, and the connecting rods are arranged on both sides of the support plate body. The two ends of the operating member are respectively sleeved on the two connecting rods, so that the operating member can slide along the extension direction of the connecting rods. The operating member is provided with a push rib, and the push rib has a guiding inclined surface. When the operating member slides, the guiding inclined surface pushes against the first locking member to move from the locking position to the unlocking position.

[0014] In one embodiment, the positioning structure includes a first positioning structure and a second positioning structure, and the first positioning structure and the second positioning structure are respectively arranged on both sides of the support plate body of the support plate. The support plate adjustment mechanism also includes a first traction member and a second traction member. One end of the first traction member is connected to the operating member, and the other end is connected to the first positioning structure. One end of the second traction member is connected to the operating member, and the other end is connected to the second positioning structure. When the operating member slides from the locking position to the releasing position, the first traction member pulls the first positioning structure to release the lock, and the second traction member pulls the second positioning structure to release the lock. At least one of the first traction member and the second traction member is a flexible element.

[0015] In one embodiment, the operating mechanism includes: two operating members, which are slidably disposed on both sides of the support plate and can slide between a locking position and a release position, and at least a portion of each of the operating members is exposed from the support plate; two driving members, which are slidably disposed on the support plate and can move as the corresponding operating members are operated; and two traction member groups, each of which includes a first traction member and a second traction member. The first traction member is configured to be connected between the operating member and the driving member located on the same side of the support plate so that the driving member and the operating member are linked. The second traction member is connected between the operating member located on one side of the support plate and the driving member located on the other side of the support plate.

[0016] In one embodiment, the first traction member includes a first traction line having a first end, a line portion and a second end. The first end and the second end of the first traction line are respectively fixedly connected to the operating member and the driving member on the same side, so that when the operating member is operated, the driving member is driven to move.

[0017] In one embodiment, the first traction member further includes a first sheath, and the first sheath is disposed on the first traction wire.

[0018] In one embodiment, the first traction member includes a first traction line and a first sheath. The first end of the first traction line is fixedly connected to the driving member on the same side, and the second end of the first traction line is fixedly connected to the support plate. The first sheath is sleeved on the first traction line, the first end of the first sheath abuts against the support plate, and the second end of the first sheath is connected to the operating member.

[0019] In one embodiment, the second traction member includes a second traction line and a second sheath. The first end of the second traction line is connected to the operating member on one side of the support plate, and the second end of the second traction line is connected to the driving member on the other side of the support plate. The second sheath is sleeved on the second traction line, the first end of the second sheath is fixed to one side of the support plate, and the second end of the second sheath is fixed to the other side of the support plate.

[0020] In one embodiment, the first locking member is fixedly disposed on a fixing seat at the end of the support plate. The operating mechanism is provided with an inclined groove, and the inclined groove is slidably matched with the fixing seat through a linkage pin provided on the fixing seat. When the operating mechanism is operated, the operating mechanism moves the fixing seat through the inclined groove to drive the first locking member to disengage from the engagement with the seat portion.

[0021] In one embodiment, the support plate body is provided with a limiting rib, the seat portion includes a cover body located at the front side, the cover body is provided with a limiting groove, and the vertical section of the limiting rib can be blocked by the blocking portion of the limiting groove to prevent the support plate from detaching from the seat portion.

[0022] The present disclosure provides a child safety seat. The child safety seat comprises: a seat; a support plate, which is arranged at the front end of the seat and can slide and retract relative to the seat; a positioning structure, which can be movably arranged on the support plate body to position the support plate at at least one position of the seat; and an operating mechanism, which is arranged on the support plate to drive the positioning structure to lock and release the support plate and the seat, wherein the operating mechanism comprises: two operating members, which are respectively arranged on both sides of the support plate or the seat; two driving members, which are respectively movably arranged on the support plate and can move as the corresponding operating members are operated; and two traction member groups, each of which comprises a first traction member and a second traction member, wherein the first traction member is configured to be connected between the operating member and the driving member located on the same side of the support plate so that the driving member and the operating member are linked, and the second traction member is connected between the operating member located on one side of the support plate and the driving member located on the other side of the support plate, wherein at least one of the first traction member and the second traction member is a flexible element.

[0023] In one embodiment, the child safety seat further comprises a base, wherein the base is used to place the seat, and the seat can slide relative to the base to adjust a tilt angle.

[0024] In another embodiment, the present disclosure further provides a headrest height adjustment mechanism, comprising:

[0025] An operating member is slidably disposed on the headrest, and the operating member has an initial position, a first operating position, and a second operating position relative to the headrest;

[0026] A locking assembly, used to lock with the height adjustment gear, the locking assembly having a locking position and a release position and being switchable between the locking position and the release position; and

[0027] The safety lock mechanism includes a limiting member arranged on the operating member and an engaging member arranged on the locking assembly, the limiting member cooperates with the engaging member to lock the locking assembly in the locking position, and the limiting member is separated from the engaging member by switching the operating member from the initial position to the first operating position, so that the safety lock mechanism releases the locking assembly; and the locking assembly is switched from the locking position to the unlocking position by switching the operating member from the first operating position to the second operating position.

[0028] In one of the embodiments, the headrest height adjustment mechanism also includes a driving member, one end of which is slidably connected to the operating member, and the other end of the driving member abuts against the locking assembly. The operating member is switched from the first operating position to the second operating position, so that the driving member moves and drives the locking assembly to switch from the locking position to the releasing position.

[0029] In one embodiment, the locking assembly is driven by the driving member to rotatably switch between the locking position and the unlocking position.

[0030] In one embodiment, the locking assembly includes a locking body and a locking rod for locking with the height adjustment gear, one end of the locking body has a pivoting portion pivotally connected to the headrest, and the locking rod is fixed to the other end of the locking body.

[0031] In one of the embodiments, the limiting member is a stop pin provided on the operating member, and the engaging member is an engaging groove provided on the locking body. The stop pin is inserted into the engaging groove to lock the locking assembly in the locking position, and the stop pin is disengaged from the engaging groove so that the safety lock mechanism releases the lock on the locking assembly.

[0032] In one of the embodiments, the operating member includes a handle and a transmission member connected to the handle, the stop pin is connected to the transmission member, and the extension direction of the stop pin is the same as the movement direction of the transmission member.

[0033] In one embodiment, a matching bevel is provided on the locking body, and the driving member is provided with a driving bevel corresponding to the matching bevel. Movement of the driving member causes the driving bevel to press against the matching bevel, so that the locking rod rotates relative to the pivot portion.

[0034] In one of the embodiments, the locking assembly further includes a first elastic member abutting against the locking body, wherein the first elastic member provides an elastic force that keeps the locking rod locked with the height adjustment gear.

[0035] In one of the embodiments, a sliding groove is provided on the operating member, and the driving member includes a pulling member located in the sliding groove. When the operating member moves between the initial position and the first operating position, the pulling member slides in the sliding groove. The operating member is switched from the first operating position to the second operating position, so that the pulling member moves with the operating member and drives the locking assembly to switch from the locking position to the releasing position.

[0036] In one embodiment, the headrest height adjustment mechanism further includes a second elastic member disposed between the headrest and the operating member, and the second elastic member provides an elastic force that keeps the operating member at the initial position.

[0037] In one embodiment, a receiving groove and a hanging hole adjacent to the receiving groove are provided on the operating member, one end of the second elastic member is fixed to the hanging hole, the main body of the second elastic member is located in the receiving groove, and one end of the second elastic member is fixed to the headrest.

[0038] A child carrier comprises a carrier body, a headrest movably arranged on the carrier body, and a headrest height adjustment mechanism as described in any one of the above items located between the carrier body and the headrest, wherein the carrier body comprises the height adjustment gear locked with the locking component of the headrest height adjustment mechanism.

[0039] In one embodiment, the carrier body includes a backrest, the headrest is movably disposed on the backrest, and the height adjustment gear is disposed on the backrest, so that the headrest can be adjusted in height relative to the backrest by the cooperation between the height adjustment mechanism and the height adjustment gear.

[0040] In one of the embodiments, the headrest includes a fixed cover plate, and the pivoting portion of the locking body is rotatably disposed on the fixed cover plate.

[0041] The headrest height adjustment mechanism has a safety lock mechanism and the operating member has an initial position, a first operating position and a second operating position. The safety lock mechanism is driven to release the lock of the locking assembly by the movement of the operating member switching from the initial position to the first operating position, so that the subsequent unlocking operation can only be performed when the operating member moves to the first operating position. At the same time, one end of the driving member is slidably arranged on the operating member, and the other end of the driving member abuts against the locking assembly. The driving member is moved and drives the locking assembly to switch from the locking position to the unlocking position by switching the operating member from the first operating position to the second operating position, thereby achieving the purpose of unlocking. In other words, when the operating member is in the initial position, under the action of the safety lock mechanism, the locking rod of the locking assembly can be firmly locked with the height adjustment gear. Even if the child carrier is subject to some collision during emergency braking of the car, the locking rod will not be easily disengaged from the height adjustment gear, thereby reducing the possibility of gear jumping and improving the safety of the child carrier.

[0042] In yet another embodiment, the present disclosure provides a crotch strap length adjustment device for a child carrier, comprising: a crotch strap having a movable end that can be detachably connected to a seat portion of the child carrier, wherein the movable end is provided with a plurality of crotch strap adjustment structures arranged along the length direction of the crotch strap; an adjustment connector arranged on the seat portion, capable of engaging with one of the crotch strap adjustment structures on the movable end to prevent the corresponding crotch strap from leaving the seat portion, and capable of disengaging from the crotch strap adjustment structure to allow the corresponding crotch strap to leave the seat portion.

[0043] In one embodiment, the crotch strap adjustment structure is one or more of an adjustment sleeve, an adjustment ring, an adjustment hook and an adjustment rod.

[0044] In one embodiment, the crotch strap adjustment structure is an adjustment sleeve formed by folding the end of the crotch strap relative to itself multiple times.

[0045] In one embodiment, the adjustment connector is arranged on the seat portion to be movable between a first position and a second position, and the adjustment connector is arranged to engage with one of the crotch strap adjustment structures at the first position and to disengage from the crotch strap adjustment structure at the second position.

[0046] In one embodiment, the adjustment connector has a connector engagement portion that engages with or disengages from one of the crotch strap adjustment structures.

[0047] In one embodiment, a seat connecting hole is provided on the seat, and the connecting member engaging portion of the adjusting connecting member is engaged with one of the crotch strap adjusting structures and accommodated in the seat connecting hole.

[0048] In one embodiment, the crotch strap length adjustment device further includes: an adjustment operating member, which is disposed to be exposed from the seat portion and capable of being exerted with a force to drive the adjustment connecting member to move between the first position and the second position.

[0049] In one embodiment, the adjustment operating member is movably arranged on the seat, and the adjustment connecting member is connected to the adjustment operating member.

[0050] In one embodiment, the adjusting connecting member further comprises a connecting member driving portion connected to the adjusting operating member.

[0051] In one embodiment, the adjustment operating member is provided with an operating member fixing hole, the connecting member driving part is provided with a connecting member fixing hole, and a connecting member fixing structure passes through the operating member fixing hole and the connecting member fixing hole to connect the adjustment connecting member with the adjustment operating member.

[0052] In one embodiment, the cross-section of the connecting member driving portion is non-circular, and the adjusting operating member is provided with an operating member connecting groove, and the cross-section of the operating member connecting groove corresponds to the cross-section of the connecting member driving portion in shape and size, so that the connecting member driving portion cannot rotate in the operating member connecting groove.

[0053] In one embodiment, the crotch strap length adjustment device further comprises: an operating member guiding structure, which is arranged on the seat portion and configured to guide the movement of the adjustment operating member.

[0054] In one embodiment, the operating member guiding structure is a strip-shaped structure, and two ends of the strip-shaped structure are respectively fixed to the seat portion through guiding structure fixing members.

[0055] In one embodiment, the crotch strap length adjustment device further comprises: an operating member resetting elastic member, configured to directly or indirectly drive the adjustment connecting member to move toward the first position and maintain it in the first position.

[0056] In one embodiment, the operating member reset elastic member is a tension spring having a first reset elastic member end and a second reset elastic member end, the first end of the reset elastic member is connected to the reset elastic member connecting structure on the seat portion, and the second end of the reset elastic member is connected to the reset elastic member connecting portion on the adjustment operating member.

[0057] In one embodiment, the adjustment operating member is provided with a reset elastic member accommodating portion for accommodating the operating member reset elastic member therein.

[0058] In one embodiment, a buckle is provided on the crotch strap.

[0059] In one embodiment, the buckle is provided with a buckle through-hole for the crotch strap to pass through.

[0060] In one embodiment, the crotch strap has a first end and a second end, at least one of the first end and the second end being the active end.

[0061] In another embodiment, the present disclosure further provides a child carrier, wherein the child carrier adopts the crotch strap length adjustment device as described above.

[0062] In another embodiment, the present invention provides a child safety seat, wherein the child installation seat comprises: a seat portion; a support plate, which is arranged at the front end of the seat portion and can slide and retract relative to the seat portion; wherein a support plate adjustment mechanism is arranged on the support plate, and the support plate adjustment mechanism can adjust the length of the support plate extending from the seat portion, wherein the support plate comprises a support plate body and a first connecting member, one end of the first connecting member is fixed to the support plate body; the other end of the first connecting member extends from the support plate body and is inserted and matched with the seat portion, so that the support plate can be slidably connected to the seat portion, and the support plate adjustment mechanism comprises a positioning structure, and the positioning structure can be movably arranged The support plate body is disposed on the support plate body so as to be able to position the support plate at at least one position of the seat; the support plate adjustment mechanism also includes an operating mechanism, which is at least partially movably arranged on the support plate and includes two operating members, which are slidably arranged on both sides of the support plate and can slide between a locking position and a release position, wherein when any of the operating members is in the locking position, the operating member drives the positioning structure to lock the support plate and the seat to limit the movement of the support plate relative to the seat; and when the operating member is in the release position, the operating member drives the positioning structure to release the lock to allow the support plate to move relative to the seat.

[0063] In one embodiment, a second connecting member is disposed on the upper surface of the support plate body, and the second connecting member is slidably fitted with the lower surface of the seat, wherein the second connecting member is a guide rib or a guide groove.

[0064] In one embodiment, the operating mechanism also includes: two driving members, which are respectively slidably disposed on the support plate and can move as the corresponding operating members are operated; and two traction member groups, each of which includes a first traction member and a second traction member, wherein the first traction member is configured to be connected between the operating member and the driving member located on the same side of the support plate so that the driving member and the operating member are linked, and wherein the second traction member is connected between the operating member located on one side of the support plate and the driving member located on the other side of the support plate, wherein at least one of the first traction member and the second traction member is a flexible element.

[0065] In one embodiment, the positioning structure includes a first locking piece, which is arranged at the support plate body and can move between a locked position and an unlocked position; a second locking piece is arranged on the lower surface of the seat, and a through hole is penetrated through the upper surface of the support plate body, and the engaging end of the first locking piece can extend and retract from the through hole to engage and disengage from the second locking piece; wherein, the first locking piece is a positioning pin, and the second locking piece is a positioning hole, and a plurality of second locking pieces are arranged along the front-to-back direction of the seat, and the positioning structure also includes an elastic piece, which is arranged to bias the first locking piece toward the direction of extending out of the through hole.

[0066] In one embodiment, the first connecting member includes two connecting rods, which are arranged on both sides of the support plate body; the two end portions of the operating member are respectively mounted on the two connecting rods, so that they can slide along the extension direction of the connecting rods, and the operating member is provided with a pushing rib, and the pushing rib has a guiding inclined surface. When the operating member slides, the guiding inclined surface pushes against the first locking member to move from the locking position to the unlocking position.

[0067] In one embodiment, the first traction member includes a first traction line, the first traction line has a first end, a line body portion and a second end, the first end and the second end of the first traction line are respectively fixedly connected to the operating member and the driving member on the same side, so that when the operating member is operated, the driving member is driven to move, wherein the first traction member also includes a first sheath, and the first sheath is mounted on the first traction line.

[0068] In one embodiment, the first traction member includes a first traction wire and a first sheath, the first end of the first traction wire is fixedly connected to the driving member on the same side, and the second end of the first traction wire is fixedly connected to the support plate; the first sheath is arranged on the first traction wire, the first end of the first sheath abuts against the support plate, and the second end of the first sheath is connected to the operating member.

[0069] In one embodiment, the second traction member includes a second traction wire and a second sheath, wherein a first end of the second traction wire is connected to the operating member on one side of the support plate, and a second end of the second traction wire is connected to the driving member on the other side of the support plate; and wherein the second sheath is sleeved on the second traction wire, a first end of the second sheath is fixed to one side of the support plate, and a second end of the second sheath is fixed to the other side of the support plate.

[0070] In another embodiment, the present disclosure provides a child safety seat, the child safety seat includes a headrest height adjustment mechanism, the headrest height adjustment mechanism includes: an operating member slidably arranged on the headrest, the operating member having an initial position, a first operating position and a second operating position relative to the headrest; a locking assembly capable of being locked with a height adjustment gear, the locking assembly having a locking position and a release position and being switchable between the locking position and the release position; a driving member, one end of the driving member being slidably connected to the operating member, the other end of the driving member being in contact with the locking assembly, and the operating member being switched from the first operating position to the second operating position so that the driving member moves and The locking assembly is driven to switch from the locking position to the unlocking position; and a safety lock mechanism comprises a limiting member arranged on the operating member and a snap-fitting groove arranged on the locking assembly, wherein when the operating member switches from the first operating position to the second operating position, the limiting member is inserted and engaged with the snap-fitting groove to lock the locking assembly in the locking position, so that the locking assembly switches from the locking position to the unlocking position; when the operating member switches from the initial position to the first operating position, the limiting member is separated from the snap-fitting groove, so that the safety lock mechanism releases the lock on the locking assembly; wherein the sliding direction of the limiting member is the same as the sliding direction of the operating member.

[0071] In yet another embodiment, the present disclosure provides a child safety seat, the child safety seat comprising a seat and a crotch strap length adjustment device disposed on the seat, wherein the crotch strap length adjustment device comprises: a crotch strap having a movable end detachably connected to the seat of the child carrier, wherein the movable end is provided with a plurality of crotch strap adjustment structures arranged along the length direction of the crotch strap; an adjustment connector disposed on the seat, capable of engaging with one of the crotch strap adjustment structures on the movable end to prevent the corresponding movable end from leaving the seat, and capable of disengaging from the crotch strap adjustment structure to allow the corresponding movable end to leave the seat. leaving the seat; wherein the adjustment connection member is arranged on the seat to be able to move between a first position and a second position, and the adjustment connection member is arranged to engage with one of the crotch strap adjustment structures at the first position and disengage from the crotch strap adjustment structure at the second position; an adjustment operating member is arranged to be exposed from the seat and to be able to be applied with a force to drive the adjustment connection member to move between the first position and the second position; and an operating member reset elastic member is arranged to directly or indirectly drive the adjustment connection member to move toward the first position and remain in the first position.

[0072] The beneficial effect of the utility model is that the support plate according to the disclosure can be used with different vehicle models, and can provide a larger leg space for the children riding, thereby providing a safer and more comfortable feeling. The crotch strap length adjustment device according to the disclosure can adjust the length of the crotch strap in different gears.

[0073] The foregoing and other objects, features, aspects and advantages of the present disclosure will become more apparent from the following detailed description of the present disclosure in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification. The accompanying drawings illustrate embodiments of the present disclosure and together with the following description serve to explain the concept of the present disclosure.

[0075] Figure 1 is a side view of a child safety seat provided with a support plate according to an embodiment of the present disclosure, wherein the support plate is in a retracted position.

[0076] Figure 2A is a side view of a child safety seat provided with a support plate according to an embodiment of the present disclosure, wherein the support plate is in an extended position.

[0077] Figure 2B yes Figure 2A A sectional view and a partial enlarged view of the child safety seat taken along line "AA".

[0078] Figure 3 yes Figure 2A A three-dimensional view and a partial enlarged view of the child safety seat in FIG. 1 after the support plate is removed, viewed from below.

[0079] Figure 4 It is a stereoscopic view and a partially enlarged view of an example of a support plate according to an embodiment of the present disclosure.

[0080] Figure 5 yes Figure 2A A partially enlarged stereoscopic view of a child safety seat as viewed from below.

[0081] Figure 6 1 is a partially enlarged view of an example of a support plate according to an embodiment of the present disclosure, as viewed from below.

[0082] Fig. 7A yes Figure 2A Bottom view of the child safety seat in FIG.

[0083] Figure 7B yes Fig. 7A A sectional view and a partial enlarged view of the child safety seat taken along line "BB" in FIG.

[0084] Fig. 8A yes Figure 2A A perspective view of a child safety seat in FIG. 1 as viewed from above.

[0085] Figure 8B yes Fig. 8A A side partial cross-sectional view and an enlarged view of the child safety seat taken along line "CC" in FIG.

[0086] Fig. 9 yes Figure 2A A side sectional view and a partial enlarged view of the child safety seat in FIG.

[0087] Fig.10 A perspective view showing a child safety seat according to another embodiment of the present disclosure is shown.

[0088] Fig.11 Show Fig.10 A perspective view of the child safety seat in another state is shown.

[0089] Fig.12 Show Fig.11 A side cutaway view of a child safety seat is shown.

[0090] Fig.13 A perspective view showing a child safety seat according to another embodiment of the present disclosure viewed from another angle is shown.

[0091] Fig.14 A perspective view showing a child safety seat according to another embodiment of the present disclosure, viewed from yet another angle.

[0092] Fig.15 A perspective view showing a support plate according to another embodiment of the present disclosure.

[0093] Fig.16 A partial perspective view of a child safety seat according to another embodiment of the present disclosure is shown.

[0094] Fig.17 A perspective view of a child safety seat according to another embodiment of the present disclosure is shown, in which a bottom cover plate between a support plate and a seat portion is removed.

[0095] Fig.18 A partial perspective view of a child safety seat according to another embodiment of the present disclosure is shown, wherein an upper cover of a support plate is removed.

[0096] Fig.19 Show Fig.17 The child safety seat is shown in a partial perspective view in another state.

[0097] Fig. 20 A perspective view showing a base according to another embodiment of the present disclosure.

[0098] Fig.21 Another partial perspective view of a child safety seat according to another embodiment of the present disclosure is shown, wherein an upper cover of the support plate is removed.

[0099] Fig. 22 A partial three-dimensional top view of a support plate and a seat according to another embodiment of the present disclosure is shown.

[0100] Fig.23 Shown along Fig. 22 A cross-sectional view taken along line "DD" in FIG.

[0101] Fig.24 A perspective view of a support plate according to another embodiment of the present disclosure is shown, in which an upper cover and a bottom plate are removed.

[0102] Fig.25 Another side cross-sectional view of a child safety seat according to another embodiment of the present disclosure is shown.

[0103] Fig.26 A perspective view showing a child safety seat according to yet another embodiment of the present disclosure is shown.

[0104] Fig. 27 Show Fig.26 A perspective view of the child safety seat in another state is shown.

[0105] Fig.28 Show Fig. 27 A perspective view of the child safety seat shown is shown from another angle.

[0106] Fig.29 Show Fig.28 A perspective view of the support plate shown.

[0107] Fig.30 Show Fig.29 Another perspective view of the support plate is shown, wherein the upper cover of the support plate is removed.

[0108] Fig.31 Show Fig. 27 The illustrated partial perspective view of the child safety seat is viewed from another angle, wherein the upper cover of the support plate is removed.

[0109] Fig.32 is a schematic three-dimensional diagram of a child carrier according to an embodiment.

[0110] Fig.33 yes Fig.32 Schematic diagram of the internal structure of the child carrier shown.

[0111] Fig.34 4 is a schematic three-dimensional diagram of a headrest height adjustment mechanism according to an embodiment.

[0112] Fig.35 yes Fig.34 A perspective exploded view of the headrest height adjustment mechanism is shown.

[0113] Fig.36 yes Fig.35 A zoomed-in view of the locked subject.

[0114] Fig.37 yes Fig.35 Enlarged view of the operating parts.

[0115] Fig.38 It is a three-dimensional schematic diagram of a state of an operating member and a locking assembly.

[0116] Fig.39 It is a three-dimensional schematic diagram of another state of the operating member and the locking assembly.

[0117] Fig.40 yes Fig.35 Enlarged view of the middle drive component.

[0118] Fig.41A yes Fig.38 A three-dimensional schematic diagram of the operating member and the locking assembly from another angle.

[0119] Fig.41B It is the main view when the operating part and the driving part are matched.

[0120] Fig.42 It is a cross-sectional view of the operating member in the initial position.

[0121] Fig.43 yes Fig.42 A partial enlarged view of point A in the middle.

[0122] Fig.44 It is a cross-sectional view of the operating member in the first operating position.

[0123] Fig.45 is a cross-sectional view of the operating member in the second operating position.

[0124] Fig.46A is a schematic diagram of a child carrier using the crotch strap length adjustment device according to the present disclosure.

[0125] Fig.46B yes Fig.46A A partial enlarged view of .

[0126] Fig.47A yes Fig.46A Schematic diagram of a child carrier shown in FIG. , wherein a portion of the seat is removed.

[0127] Fig.47B yes Fig.47A A partial enlarged view of .

[0128] Fig.48 yes Fig.46A FIG. 4 is a schematic diagram of a crotch strap and a buckle of a crotch strap length adjustment device according to the present disclosure.

[0129] Fig.49A yes Fig.46A A partial front cross-sectional view of the child carrier shown in FIG.

[0130] Fig.49B yes Fig.49A A partial enlarged view of .

[0131] Fig.50A yes Fig.46A A side partial cross-sectional view of a child carrier shown in FIG. 1 , showing the connection state of the operating member and the resilient member.

[0132] Fig.50B yes Fig.50A A partial enlarged view of .

[0133] Fig.51A yes Fig.46A A schematic diagram of a child carrier from another angle is shown in FIG.

[0134] Fig.51B yes Fig.51A A partial enlarged view of .

[0135] Fig.52A yes Fig.46A 0014] A side partial cross-sectional view of a child carrier shown in FIG. 10, wherein the adjustment connection member is shown in a first position.

[0136] Fig.52B yes Fig.52A A partial enlarged view of .

[0137] Fig.53A yes Fig.46A 0014] A side partial cross-sectional view of a child carrier shown in FIG. 10, wherein the adjustment connection member is shown in a second position.

[0138] Fig.53B yes Fig.53A A partial enlarged view of .

[0139] Fig.54 Schematic diagram of an embodiment of an adjustment operating member of a crotch strap length adjustment device according to the present disclosure.

[0140] Fig.55 yes Fig.54 FIG. 2 is a schematic diagram of another angle of an embodiment of an adjustment operating member shown in FIG.

[0141] Fig.56 Schematic diagram of an embodiment of an adjustment connector of a crotch strap length adjustment device according to the present disclosure.

[0142] Description of reference numerals:

[0143] 100 Support plate

[0144] 110 Support plate body

[0145] 110A Top surface

[0146] 110B bottom surface

[0147] 110C Through hole

[0148] 111 Limiting rib

[0149] 111A vertical section

[0150] 120 Second connecting piece

[0151] 130 first locking member

[0152] 131 Joint end

[0153] 140 Operating parts

[0154] 141 Push rib

[0155] 150 Connecting rod

[0156] 160 Elastic parts

[0157] 200 Seat

[0158] 210 Cover

[0159] 211 Limiting slot

[0160] 211A Blocking part

[0161] 220 Slide

[0162] 230 Second locking member

[0163] 250 Connection hole

[0164] 300 Support Plate

[0165] 310 Support plate body

[0166] 311 Upper cover

[0167] 312 Lower cover

[0168] 312A Window

[0169] 313 Base Plate

[0170] 313a Extension

[0171] 3131 Receiving slot

[0172] 320 First connecting piece

[0173] 330 Second connecting piece

[0174] 340 Support plate adjustment mechanism

[0175] 341 Operating parts

[0176] 3411 Chute

[0177] 342 Elastic parts

[0178] 343 Positioning structure

[0179] 3431 First locking piece

[0180] 3432 Fixed seat

[0181] 3433 Return spring

[0182] 3434 Linking pin

[0183] 350 First limit piece

[0184] 400 Seat

[0185] 401 connection hole

[0186] 402 Slide

[0187] 410A Sliding member

[0188] 410B Sliding member

[0189] 410C Connecting column

[0190] 421 Release operating member

[0191] 422 Connecting components

[0192] 423 Reset component

[0193] 424 Angle Locking Structure

[0194] 4241 Bayonet

[0195] 4242 snap-fit ​​reset member

[0196] 430 Second locking member

[0197] 440 Second limit piece

[0198] 500 Base

[0199] 510 snap-in hole

[0200] 520A Slip-fit ​​components

[0201] 520B Sliding Fitting Components

[0202] 600 Support Plate

[0203] 610 Support plate body

[0204] 611 Top Cover

[0205] 612 Lower cover

[0206] 613 Base Plate

[0207] 620 First connecting piece

[0208] 640 Support plate adjustment mechanism

[0209] 641 Operating parts

[0210] 642 Elastic parts

[0211] 643 Positioning structure

[0212] 6431 First locking piece

[0213] 6432 Fixed seat

[0214] 6434 Linking pin

[0215] 644 Traction parts

[0216] 6441 First traction piece

[0217] 6441a First traction line

[0218] 6441b First sheath

[0219] 6442 Second traction member

[0220] 6442a Second traction line

[0221] 6442b Second sheath

[0222] 645 Drive parts

[0223] 6451 Driver return spring

[0224] 6452 Chute

[0225] 700 Seat

[0226] 730 Second locking member

[0227] M100 Child Carrier

[0228] M10 headrest height adjustment mechanism

[0229] M12 operating element

[0230] M122 handle

[0231] M124 transmission parts

[0232] M1242 Storage Tank

[0233] M1244 hanging hole

[0234] M1246 Slide slot

[0235] M14 locking assembly

[0236] M142 Locking Body

[0237] M143 first elastic member

[0238] M144 Locking Lever

[0239] M146 pivot joint

[0240] M147 matching bevel

[0241] M148 fixed part

[0242] M16 safety lock mechanism

[0243] M162 stop pin

[0244] M164 snap-in slot

[0245] M18 drive

[0246] M181 slot

[0247] M182 main body

[0248] M183 positioning hole

[0249] M184 contact part

[0250] M186 Pulling piece

[0251] M188 drive ramp

[0252] M19 second elastic member

[0253] M20 vehicle body

[0254] M201 height adjustment gear

[0255] M202 Back

[0256] M30 Headrest

[0257] M32 limit plate

[0258] M322 limit slot

[0259] M34 positioning plate

[0260] M342 fixed hook

[0261] M36 fixed cover

[0262] N1 Child Carrier

[0263] N10 seat

[0264] N112 Reset elastic member connection structure

[0265] N20 buckle

[0266] N21 buckle perforation

[0267] N100 Crotch Strap

[0268] N101 First Terminal

[0269] N101C first crotch strap adjustment structure

[0270] N102 Second Terminal

[0271] N102C second crotch strap adjustment structure

[0272] N300 adjustment operating parts

[0273] N310 operating part reset elastic part

[0274] N310A Reset elastic member first end

[0275] N310B Reset elastic member second end

[0276] N311 Reset elastic member blocking member

[0277] N320 operating part guide structure

[0278] N321 guide structure fixings

[0279] N330 operating part fixing hole

[0280] N340 operating part connection slot

[0281] N350 Reset elastic connection part

[0282] N360 operating part force bearing part

[0283] N370 Reset elastic member accommodation part

[0284] N400 Adjustment connector

[0285] N410 connector joint

[0286] N420 Connector Drive

[0287] N421 Connector fixing hole

[0288] N430 connector fixing structure DETAILED DESCRIPTION

[0289] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Although the present disclosure is susceptible to various modifications and alternative forms, its specific embodiments are shown in the accompanying drawings by way of example. However, the present disclosure should not be construed as being limited to the embodiments set forth herein, but rather, the present disclosure will cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure.

[0290] The present disclosure will be described in detail below with reference to the accompanying drawings.

[0291] In one embodiment of the present disclosure, a child safety seat (also referred to as a "child carrier" or "infant car seat") is provided. Specifically, Figure 1 , Figure 2A and Figure 2B FIG. 2 shows a child safety seat provided with a support plate 100 according to the present disclosure. The support plate 100 is slidably connected to a seat portion 200 of the child safety seat, for example, connected to a front lower portion of the seat portion 200, and can be Figure 1 The retracted position shown is Figure 2A Slide forward and backward and position between the extended positions shown. Figure 1 , the direction the child safety seat faces is defined as "front", and the direction the child safety seat faces away is defined as "rear". By enabling the support plate 100 to slide forward and backward along the seat portion 200 and be positioned at different positions, the support plate 100 according to the present disclosure can be used with different vehicle models, and can provide a larger leg space for the child, thereby providing a safer and more comfortable feeling.

[0292] Specifically, the support plate 100 according to the present disclosure includes a support plate body 110 and a second connecting member 120 disposed on the support plate body 110. The support plate body 110 may be in a plate shape, or in a block shape or other shapes. The second connecting member 120 is slidably matched with a sliding member 220 disposed on the seat 200, so that the support plate 100 can slide forward and backward along the seat 200.

[0293] In such Figure 2B , Figure 3 and Figure 4 In the embodiment shown, the second connecting member 120 may be a sliding rib located on the upper surface 110A of the supporting plate body 110 (see Figure 4 ), the sliding member 220 may be a sliding groove located on the lower surface of the seat 200 (see Figure 3). By inserting the sliding ribs on the support plate body 110 of the support plate 100 into the sliding grooves on the seat 200 and sliding therein, the support plate 100 can slide forward and backward along the seat 200.

[0294] Vice versa, the second connecting member 120 may also be a sliding groove located on the upper surface 110A of the supporting plate body 110 , and the sliding member 220 may also be a sliding rib located on the lower surface of the seat 200 .

[0295] Of course, the present disclosure is not limited thereto. The second connecting member 120 disposed on the support plate body 110 and the sliding member 220 disposed on the seat 200 may also adopt other sliding matching structures, as long as the sliding of the support plate 100 relative to the seat 200 can be achieved. For example, the second connecting member 120 may be a sliding rod disposed on the support plate body 110, and the sliding member 220 may be a sliding ring disposed on the seat 200.

[0296] In one embodiment, if Figure 4 and Fig. 9 As shown, the support plate 100 according to the present disclosure also includes a first connecting member fixed to the support plate body 110. In this embodiment, the first connecting member can be a connecting rod or a connecting tube (also referred to as a "reinforcement rod" or a "reinforcement tube"), but the present disclosure is not limited thereto. Below, taking the connecting rod 150 as an example, a connecting hole 250 for inserting the connecting rod 150 is formed on the seat 200. After the support plate 100 is assembled to the seat 200, the connecting rod 150 is inserted into the connecting hole 250. As the support plate 100 slides relative to the seat 200, the connecting rod 150 slides in the connecting hole 250, which can not only guide the support plate 100 to slide forward and backward along the seat 200, but also when the support plate 100 extends beyond the front side of the seat 200, especially when the portion of the support plate 100 extending beyond the front side of the seat 200 is larger than the portion hidden in the lower surface of the seat 200, the connecting rod 150 inserted into the connecting hole 250 can greatly enhance the supporting capacity of the support plate 100.

[0297] exist Figure 4In the illustrated embodiment, there are two connecting rods 150 fixed to the support plate body 110 of the support plate 100, which are respectively located on the left and right sides of the support plate body 110 of the support plate 100, so as to share the force of the support plate 100 in a balanced manner. As needed, the number and shape of the connecting rods 150 can be changed. For example, the connecting rod 150 can be one, three or more than three, and the connecting rod 150 can not only be a tubular member, that is, it can be configured as a connecting tube, such as a round tube or a square tube, and it can also be a non-hollow rod, and the present disclosure is not limited to this. Accordingly, the connecting holes 250 for the connecting rods 150 to be inserted therein can also take corresponding numbers and shapes. The material of the connecting rod 150 can be different from the material of the support plate 100 and the seat 200, and it can be, for example, a metal with strong rigidity, preferably stainless steel, carbon steel, etc.

[0298] It should be noted that the support plate 100 can also be slidably connected to the seat 200 only by the first connecting member (such as the "connecting rod 150" in the above embodiment), that is, without the cooperation of the second connecting member and the sliding member. For this embodiment, please refer to the following combined Fig.14 and Fig.15 Description.

[0299] When the support plate 100 slides between the extended position and the retracted position, in order to adjust the support plate 100 to different positions relative to the seat 200 so as to be used with different vehicle models, the support plate 100 according to the present disclosure further includes a first locking member 130. The first locking member 130 is disposed on the support plate body 110 and is movable between a locked position and an unlocked position. When the first locking member 130 is in the locked position, it is capable of engaging with the second locking member 230 on the seat 200 so that the support plate 100 is positioned relative to the seat 200. When the first locking member 130 is in the unlocked position, it is disengaged from the second locking member 230 on the seat 200 so that the support plate 100 can slide and be adjusted to a suitable position relative to the seat 200.

[0300] The first locking member 130 may be disposed on the lower surface 110B of the support plate body 110. When the first locking member 130 is in the locked position, at least a portion (e.g., the engagement end 131) of the first locking member 130 may pass through the through hole 110C on the support plate body 110 and extend or retract from the upper surface 110A of the support plate body 110 so as to engage with or disengage from the second locking member 230 on the seat 200. For example, in Figure 4 , Figure 6 and Figure 7B In the illustrated embodiment, the first locking member 130 is a strip member pivotally connected to the lower surface 110B of the support plate body 110 (see Figure 6) or a positioning hook. The strip or positioning hook can be pivoted so that when in the locked position, the engagement end 131 thereon can pass through the support plate body 110 and extend from the upper surface 110A of the support plate body 110 (see Figure 4 ).

[0301] exist Figure 7B In the illustrated embodiment, the second locking member 230 is a positioning hole disposed on the lower surface of the seat 200 .

[0302] When the strip member serving as the first locking member 130 is in the locked position, the engagement end 131 passes through the support plate body 110 and extends from the upper surface 110A of the support plate body 110, so as to be able to engage with the positioning hole serving as the second locking member 230 on the seat 200, so that the support plate 100 is positioned at this position relative to the seat 200. When the strip member serving as the first locking member 130 is in the unlocked position, the engagement end 131 retracts into the support plate body 110 and disengages from the positioning hole serving as the second locking member 230 on the seat 200, and at this time, the support plate 100 can slide freely relative to the seat 200.

[0303] It should be understood that a plurality of positioning holes serving as the second locking member 230 may be provided along the front-rear direction of the seat 200. By engaging the engaging end 131 of the strip serving as the first locking member 130 with different positioning holes, the support plate 100 may be positioned at different positions relative to the seat 200 so as to be used in conjunction with different vehicle models.

[0304] Of course, the present disclosure is not limited to this. According to the present disclosure, the first locking member 130 of the support plate 100 and the second locking member 230 on the seat 200 may adopt other matching structures, as long as these matching structures can realize the locking, positioning and unlocking of the support plate 100 relative to the seat 200. For example, the first locking member 130 is a positioning hole provided on the support plate body 110 of the support plate 100, and the second locking member 230 is a strip member provided on the seat 200. Alternatively, the first locking member 130 is a positioning pin provided on the support plate body 110 of the support plate 100, and the second locking member 230 is a positioning groove provided on the seat 200. In addition, the “positioning structure” used here to position the seat to the base (corresponding to the first locking member 130 in this embodiment) may also represent an assembly (rather than a single component) including multiple elements or parts or components, and reference may be made to the subsequent description. Fig. 22 and Fig.23 The positioning structure 343 is shown in the embodiment, but the present disclosure is not limited thereto.

[0305] In order to facilitate the user to operate the engagement and disengagement between the first locking member 130 of the support plate 100 and the second locking member 230 on the seat 200, the support plate 100 according to the present disclosure further includes an operating member 140. The operating member 140 is disposed on the support plate body 110, and can be operated by the user to drive the first locking member 130 to move between the locked position and the unlocked position. When the operating member 140 is operated by the user to drive the first locking member 130 to move from the locked position to the unlocked position, the first locking member 130 of the support plate 100 is disengaged from the second locking member 230 on the seat 200. When the operating member 140 is operated by the user to drive the first locking member 130 to move from the unlocked position to the locked position, the first locking member 130 of the support plate 100 is engaged with the second locking member 230 on the seat 200.

[0306] exist Figure 5 In the illustrated embodiment, the operating member 140 is a slidable handle disposed on the lower surface 110B of the support plate body 110. For example, a sliding groove that cooperates with the connecting rod 150 may be provided on the handle, so that the handle can slide along the connecting rod 150. More specifically, the two ends of the operating member 140 may be respectively sleeved on the two connecting rods 150, so that the handle can slide along the extension direction of the connecting rod 150. A push rib 141 is provided on the handle. When the user needs to adjust the support plate 100, the user pulls the handle of the operating member 140, and the push rib 141 on the handle can push the first locking member 130 from the locking position to the unlocking position, so that the first locking member 130 of the support plate 100 is disengaged from the second locking member 230 on the seat 200, and the support plate 100 can be adjusted relative to the seat 200. Specifically, in one example, the push rib 141 has a guiding slope, and when the operating member 140 is operated to slide relative to the connecting rod 150, the guiding slope of the push rib 141 can push against the first locking member 130 to move from the locked position to the unlocked position. For example, the guiding slope of the push rib 141 can push against the end of the first locking member 130 opposite to the engagement end 131, so that the first locking member 130 (such as a strip) pivots to drive the engagement end 131 to disengage from the second locking member 230 (such as a positioning hole).

[0307] Of course, the operating member 140 according to the present disclosure may also adopt other structures as long as it can drive the first locking member 130 to move. For example, the operating member 140 may be a button or an operating rod, and the user drives the first locking member 130 to move between the locked position and the unlocked position by pressing the button or pulling the operating rod.

[0308] In order to make it easier for the user to operate the operating member 140, Figure 6In the illustrated embodiment, the support plate 100 may further include an elastic member 160, wherein the elastic member 160 is configured to bias the first locking member 130 toward the locking position. Figure 6 In the illustrated embodiment, the elastic member 160 is a torsion spring disposed at the pivot axis of the strip member serving as the first locking member 130, and the torsion spring drives the strip member serving as the first locking member 130 to pivot so that the engaging end 131 thereon passes through the support plate body 110 and extends from the upper surface 110A of the support plate body 110 to engage with the positioning hole serving as the second locking member 230 on the seat 200. By providing the elastic member 160, the user only needs to operate the operating member 140 to overcome the elastic force of the elastic member 160 and drive the first locking member 130 to move from the locked position to the unlocked position, and the engaging end 131 retracts into the support plate body 110, thereby achieving the disengagement between the first locking member 130 of the support plate 100 and the second locking member 230 on the seat 200. Once the user no longer applies force to the operating member 140, the elastic member 160 will bias the first locking member 130 to move from the unlocked position to the locked position. In this way, not only is the operation of the user convenient, but also the structure of the operating member 140 is simplified because the operating member 140 does not need to drive the first locking member 130 to move from the unlocking position to the locking position.

[0309] It should be understood that the elastic member 160 in the present disclosure may also adopt various elastic structures such as compression springs, tension springs, hydraulic rods or gas pressure rods, as long as they can bias the first locking member 130 toward the locking position.

[0310] It is understandable that in the above combination Figures 4 to 7B In the described embodiment, the first locking member 130, and the optional operating member 140 and the elastic member 160 included in the support plate 100 can be summarized as a support plate adjustment mechanism, which is used to adjust the support plate 100 to different positions relative to the seat 200. Of course, the support plate adjustment mechanism can also be set to other different structures, for example, in combination with Figure 21 to Figure 24 Another support plate adjustment mechanism is described.

[0311] In order to prevent the support plate 100 from being separated from the seat 200, a limiting mechanism may be provided on the support plate 100. For example, the limiting mechanism may include a limiting rib and a limiting groove. Fig. 8A and Figure 8B In the illustrated embodiment, the support plate body 110 of the support plate 100 may also be provided with a limiting rib 111. At the same time, the seat 200 may include a cover body 210 located at the front side, and a limiting groove 211 is provided on the cover body 210. When the support plate 100 slides to the farthest extended position, the limiting rib 111 on the support plate body 110 is blocked by the limiting groove 211 on the cover body 210, thereby preventing the support plate 100 from continuing to slide forward and leaving the seat 200. More specifically, referring to Figure 8B When the support plate 100 slides to the farthest extended position, the vertical section 111A of the limiting rib 111 is blocked by the blocking portion 211A of the limiting groove 211, so that the support plate body of the support plate 100 is limited.

[0312] In addition, in another embodiment of the present disclosure, a child safety seat is provided.

[0313] See also Fig.10 and Fig.11 , which respectively show different states of a child safety seat and a support plate 300 arranged thereon according to another embodiment of the present disclosure.

[0314] Specifically, the child safety seat of this embodiment may include a seat 400 for a child to sit on and a base 500 for placing the seat 400. The seat 400 can slide relative to the base 500 and can be at different angles α relative to the base 500, where α is greater than or equal to zero. It should be noted that the "angle of the seat 400 relative to the base 500" mentioned here refers to the angle of the plane defined by the position of the seat 400 for a child to sit on or the bottom side plane of the seat 400 relative to the base 500 (for example, the plane used to support the seat 400). For example, Fig.10 and Fig.11 4 and 5 show two different angles of the seat 400 relative to the base 500, namely, Fig.10 The seat 400 shown is substantially parallel to the base 500, i.e., α is substantially equal to zero; and Fig.11 The angle α of the seat 400 relative to the base 500 is shown to be greater than zero, for example, about 30° to 40°. Of course, the present disclosure is not limited thereto.

[0315] and Figure 1 Similar to the embodiment shown, a child safety seat according to another embodiment of the present disclosure may also be provided with a support plate 300. Fig.10 and Fig.11 As shown, the support plate 300 can be slidably connected to the seat 400 so as to be able to extend and retract from the front end of the seat 400, so as to abut against the backrest of the car seat when the child safety seat is used rearward, thereby preventing the seat from tipping over; at the same time, the support plate 300 can also provide calf support for the child sitting on the seat 400. For example, the support plate 300 of this embodiment can be Fig.10 The retracted position shown is Fig.11 The specific structure and arrangement of the support plate 300 of this embodiment will be described below. Figures 14 to 19 Detailed description is given in the description.

[0316] refer to Fig.12 and Fig.13 , Fig.12 Show Fig.11 A side cutaway view of the child safety seat shown, and Fig.13 A perspective view of a child safety seat is shown from another angle.

[0317] The seat 400 and the base 500 of the child safety seat of the present disclosure can slide relative to each other. Specifically, the seat 400 and the base 500 can be slidably connected by mutually cooperating components. For example, Fig.12 4 shows a sliding connection between the seat 400 and the base 500 according to an example, Fig.13 A sliding connection between the seat 400 and the base 500 according to another example is shown.

[0318] like Fig.12 and Fig.13 As shown, the seat 400 is slidably connected to the base 500 through at least one sliding assembly, wherein each sliding assembly includes a sliding member 410A and / or 410B and a sliding matching member 520A and / or 520B. The sliding member 410A and / or 410B is disposed on the seat 400. The sliding matching member 520A and / or 520B is disposed on the base 500 and slidably matches with the sliding member 410A and / or 410B, respectively.

[0319] In one example, if Fig.12As shown, the sliding member 410A is a screw fixed to the bottom of the seat 400 through a connecting column 410C, and the sliding fitting member 520A is an arc-shaped long groove extending on the upper surface of the base 500 along the direction in which the seat 400 slides relative to the base 500. In a preferred example, at least one arc-shaped long groove can be provided on the bottom side of the seat 400, which is provided at the bottom surface where the seat 400 contacts the base 500, and a combination of at least one connecting column and at least one screw is correspondingly provided on the upper surface of the base 500. Specifically, a connecting column 410C (e.g., a columnar structure with a threaded hole) is fixedly provided on the bottom side of the seat 400, and the connecting column 410C extends into the arc-shaped long groove of the base 500, and the screw is connected to the connecting column 410C so that it can slide along the arc-shaped long groove together with the connecting column 410C, thereby realizing the sliding connection between the seat 400 and the base 500. Preferably, the diameter of the screw head is greater than the width of the arc-shaped long groove on the upper surface of the base 500, and optionally, the cross-sectional shape of the arc-shaped long groove can be adapted to the cross-sectional shape of the screw and the connecting column 410C, for example, in an inverted T shape, so that the seat 400 can be slidably connected to the base 500 without being separated in a direction perpendicular to its sliding direction, that is, during the sliding process of the seat 400 relative to the base 500, the screw and the connecting column will not be separated from the arc-shaped long groove. It should be noted that the present disclosure is not limited to the arc-shaped long grooves, connecting columns and screws of the above or shown numbers, and two or more arc-shaped long grooves can also be provided, and a corresponding number of connecting columns and screws can be provided. In addition, in other examples, the connecting column and the screw can also be provided on the base 500, and the arc-shaped long groove can be provided on the seat 400. Furthermore, the present disclosure can also only provide the connecting column 410c (that is, no screw is provided), and the shape of the connecting column 410c can be a hollow cylinder, a cuboid, a trapezoid, etc., but the present disclosure is not limited thereto.

[0320] In another example, if Fig.13 As shown, the sliding member 410B is an arc-shaped slide groove provided on the bottom side of the seat 400, and the sliding matching member 520B is a correspondingly provided pin on the base 500. Preferably, at least two arc-shaped slide grooves can be provided at the side surface where the seat 400 contacts the base 500, and at least two pins can be provided on the base 500 accordingly. For example, an arc-shaped slide groove is provided at each of the two inner side surfaces of the seat 400, and a pin is provided at each position of the base 500 that matches the inner side surface of the seat 400. Of course, the present disclosure is not limited to this. In other examples, the positions of the arc-shaped slide groove and the pin can be interchanged, that is, the arc-shaped slide groove is provided on the base 500, and the pin is provided on the seat 400. Optionally, a single pin can be provided on the seat 400, and the two ends of the single pin are exposed on both sides of the seat 400, and are respectively matched with the arc-shaped slide groove of the base 500.

[0321] It should be noted that the sliding members 410A, 410B and the sliding fitting members 520A, 520B in the above two examples can be provided simultaneously to further increase the stability of the sliding connection between the seat and the base. Of course, the present disclosure is not limited thereto, and other sliding connection methods can also be adopted or combined.

[0322] refer to Figures 14 to 16 , Fig.14 The child safety seat according to another embodiment of the present disclosure is shown viewed from yet another different angle. Fig.15 A schematic diagram showing the structure of the support plate 300 is shown, and Fig.16 A partial three-dimensional view of the child safety seat is shown to illustrate a connection method between the seat portion 400 and the support plate 300 .

[0323] like Fig.14 As shown, the support plate 300 is slidably disposed on the seat 400 and can be extended and retracted from the front end of the seat 400. Fig.14 and Fig.15 It can be seen that the support plate 300 includes a support plate body 310 and a first connecting member 320. In one example, the support plate body 310 of the support plate 300 is formed by connecting an upper cover 311, a lower cover 312 and a bottom plate 313, wherein the upper cover 311 and the lower cover 312 form a portion of the support plate 300 exposed to the seat 400, and the bottom plate 313 is connected to the rear ends of the upper cover 311 and the lower cover 312 and is located therebetween. In one example, the bottom plate 313 has an extension portion 313a extending backward from a shell formed by the upper cover 311 and the lower cover 312 for a certain length, which helps to enhance the stability of the support plate 300 when sliding relative to the seat 400. In one example, two first connecting members 320 may be provided, wherein the two first connecting members 320 may be symmetrically arranged on the left and right sides of the support plate body 310, and the extension portion 313a is located between the two first connecting members 320. Preferably, the extension portion 313a may be a sheet-like structure. At least a portion of the first connecting member 320 is fixed to the support plate body 310, and another portion extends from the support plate body 310 to be slidably inserted into a corresponding connecting hole 401 having a complementary shape provided on the seat 400, so that the support plate 300 can be slidably connected to the seat 400. Fig.15 As shown in FIG. 1 , the length of the extension portion 313a may be less than the length of the first connector 320 extending from the support plate body 310 (e.g., from the housing formed by the upper cover 311 and the lower cover 312). More specifically, at least a portion of the first connector 320 is fixedly connected to the bottom plate 313 of the support plate 300 by rivets. Figures 14 to 16 The specific connection between the first connecting member 320 and the supporting plate body 310 is not shown in the figure, and further details can be found in the following Fig.18 .

[0324] In addition, the first connecting member 320 of the present embodiment may be in the shape of a circular tube, a square tube, a round rod, a square rod, etc. The present disclosure is not limited to the above embodiments, and may also be set to one, three or more.

[0325] In one example, if Fig.15 and Fig.16 As shown, the support plate 300 further includes a second connecting member 330, which is slidably matched with a sliding member 402 correspondingly arranged on the seat 400, thereby further strengthening the sliding connection between the support plate 300 and the seat 400. In a preferred example, the second connecting member 330 can be arranged on the upper surface of the support plate 300, and more specifically, on the support plate body 310 of the support plate 300. More preferably, as Fig.16 As shown, one of the second connecting member 330 and the sliding member 402 is a sliding rib, and the other of the second connecting member 330 and the sliding member 402 is a sliding groove, such as a T-shaped sliding rib and a T-shaped sliding groove, an L-shaped sliding rib and an L-shaped sliding groove, etc. In addition, the second connecting member 330 and the sliding member 402 can also adopt other sliding matching structures, such as a sliding rod and a sliding ring, as long as the support plate 300 can slide relative to the seat 400. In addition, although the present embodiment Fig.15 Only two second connectors 330 are shown, but those skilled in the art should know that other numbers may be provided, such as one, three, four, etc. It should be noted that the second connector 330 may be designed to never protrude from the seat 400 during the sliding process of the support plate 300 relative to the seat 400, so as to avoid interfering with or hooking the child's clothes, etc.

[0326] refer to Figures 17 to 20 , Fig.17 A perspective view of a child safety seat according to another embodiment of the present disclosure is shown, wherein a bottom cover plate between a support plate 300 and a seat portion 400 is removed; Fig.18 and Fig.19 3 and 4 are partial stereograms of the child safety seat viewed from above, wherein the upper cover 311 of the support plate 300 is removed to show the internal structure of the support plate 300. More specifically, Fig.18 The unlocking operation member 421 of the seat angle adjustment mechanism is shown in the locked position, while Fig.19 The unlocking operating member 421 of the seat angle adjustment mechanism is shown in the unlocking position; and Fig. 20 The base 500 is shown to be provided with a snap-in hole 510 for cooperating with the seat angle adjustment mechanism.

[0327] In order to increase the comfort of the child safety seat, a seat angle adjustment mechanism may be provided on the child safety seat, that is, a mechanism capable of adjusting the angle of the seat 400 of the child safety seat relative to the base 500. Specifically, the seat angle adjustment mechanism may be provided between the seat 400 and the base 500 to adjust the angle of the seat 400 relative to the base 500, for example Fig.11 The angle α is shown.

[0328] like Figures 17 to 19 As shown, the seat angle adjustment mechanism includes a release operating member 421, a connecting member 422 and an angle locking structure 424. The release operating member 421 is disposed on the support plate 300 connected to the front end of the seat 400 and can be operated to be in a release position (such as Fig.19 ) and locked position (as shown) Fig.18 In one example, the unlocking operation member 421 is slidably disposed on the support plate 300 and is at least partially exposed from the support plate 300 for external operation. More specifically, as Fig.17 As shown, the unlocking operating member 421 is disposed at the lower side of the front end of the support plate 300 and is at least partially exposed from the lower side of the support plate 300. For example, the lower cover 312 of the support plate 300 may be provided with a window 312A at a position corresponding to the unlocking operating member 421, and the user may operate the unlocking operating member 421 from the window 312A to avoid the unlocking operating member 421 protruding from the lower side of the support plate 300 and causing interference or erroneous operation. In addition, the unlocking operating member 421 of the present disclosure is not limited to the above-mentioned position, that is, it can also be disposed at other positions of the support plate 300, such as any side or upper surface of the support plate 300, and optionally, although the unlocking operating member 421 of the present disclosure is not limited to the above-mentioned position ... Fig.17 Only one unlocking operating member 421 is shown, but it should be understood that multiple unlocking operating members 421 can be provided, for example, one on each side of the support plate 300, and the angle locking structure 424 can be adjusted by operating any one of the unlocking operating members 421, or even multiple angle locking structures 424 can be adjusted synchronously.

[0329] The connecting member 422 is connected between the unlocking operation member 421 and the angle locking structure 424, and the angle locking structure 424 is provided between the seat 400 and the base 500 to lock or unlock the position of the seat 400 relative to the base 500. Fig.17 and Fig.18One end of the connecting member 422 is fixedly connected to the unlocking operating member 421, and the other end is fixedly connected to the angle locking structure 424, so that when the unlocking operating member 421 is operated, the angle locking structure 424 can unlock the seat 400 and the base 500 under the pulling action of the connecting member 422. In a specific example, the connecting member 422 is a flexible member, such as a steel wire, so as to avoid interference with the extension and contraction of the support plate 300. More specifically, see Fig.17 The bottom cover of the seat 400 is removed, and the other end of the connecting member 422 passes through the supporting plate 300 and is connected to the angle locking structure 424 .

[0330] In one example, an extension portion 313a (e.g., a sheet-like structure) of the bottom plate 313 of the support plate 300 is further provided with a receiving groove 3131 for fixing the connecting member 422, wherein the number of the receiving grooves 3131 corresponds to the number of the connecting members 422. Fig.15 For example, combining Fig.15 and Fig.17 , two receiving grooves 3131 may be symmetrically arranged at intervals on the extension portion 313a to respectively receive corresponding connecting members 422. Thus, in addition to helping to enhance the sliding stability of the support plate 300, the extension portion 313a may also shield the connecting member 422, thereby preventing the connecting member 422 from being interfered with by external devices and making the appearance of the child safety seat neat. For example, the receiving groove 3131 may be a U-shaped structure, with the opening of the U-shaped structure facing the seat portion 400, but the present disclosure is not limited thereto, that is, the receiving groove 3131 may also have other shapes as long as it can receive the connecting member 422.

[0331] In one example, multiple connecting members 422 and multiple angle locking structures 424 may be provided. Here, two connecting members 422 and two angle locking structures 424 are provided as an example. Fig.17 As shown, the two angle locking structures 424 are respectively arranged on the inner sides of the seat 400 facing each other and located on the front side of the sliding assembly, and one end of each connecting member 422 is respectively connected to the left-right symmetrical position on the unlocking operating member 421, and the other end is respectively connected to one of the angle locking structures 424. More specifically, the connecting member 422 extends from the unlocking operating member 421 through the accommodating groove 3131 of the support plate 300, and then extends from the support plate 300 and is connected to one end of the angle locking structure 424, so that the two angle locking structures 424 can be synchronously controlled by the unlocking operating member 421.

[0332] In one example, if Fig.18 and Fig.19As shown, the seat angle adjustment mechanism further includes a restoring member 423, which is disposed between the unlocking operating member 421 and the support plate 300 and constantly provides a force to make the unlocking operating member 421 be in or return to the locked position.

[0333] In addition, the angle locking structure 424 has a plurality of locking positions relative to the base 500 , so that the seat 400 is locked at a plurality of angles relative to the base 500 , thereby achieving angle adjustment of the child safety seat.

[0334] like Fig.17 As shown, the angle locking structure 424 includes a latch 4241, which is movably disposed on the seat 400. Specifically, as shown in FIG. Fig.17 As shown, one end of the latch 4241 is linked to the unlocking operating member 421 through the connecting member 422, and can be engaged with at least one engaging hole 510 provided on the base 500. Preferably, in combination with Fig.17 and Fig. 20 As shown, the base 500 is provided with a plurality of engaging holes 510, so that the locking pin 4241 can be engaged with one of the engaging holes 510 provided on the base 500 as the angle of the seat 400 relative to the base 500 changes. It should be noted that Fig. 20 Only three engaging holes 510 are shown, but the present disclosure is not limited thereto, that is, the base 500 may also be provided with other numbers of engaging holes, such as four, five, six, etc., to provide more refined angle adjustment.

[0335] Furthermore, the angle locking structure 424 further includes a locking reset member 4242 , which is disposed between the seat 400 and the locking pin 4241 and constantly provides a force that tends to cause the locking pin 4241 to lock into the corresponding locking hole 510 .

[0336] It should be noted that, although the seat angle adjustment structure in this embodiment can be arranged in conjunction with the support plate 300, the present disclosure is not limited thereto. The seat angle adjustment structure can also be arranged in conjunction with the aforementioned combination Figures 4 to 7B In the described embodiment, that is, the unlocking operating member 421 of the seat angle adjustment structure can also be arranged on the support plate 100 in the aforementioned embodiment. For example, at its front end, any side, etc. In addition, it should also be understood that the seat angle adjustment structure can also be used in conjunction with a non-adjustable support plate, that is, the unlocking operating member 421 of the seat angle adjustment structure can be arranged on a seat with a non-adjustable support plate. This arrangement can also facilitate the user to operate the unlocking operating member 421 to adjust the seat angle without being blocked by the support plate 300.

[0337] The following will Figures 17 to 19 Taking the angle locking structure 424 as an example, the principle of the seat angle adjustment mechanism is specifically described.

[0338] Before adjusting the seat angle, Fig.17 and Fig.18 As shown, the unlocking operating member 421 is located at the locking position, the seat 400 is positioned relative to the base 500 , and the latch 4241 of the angle locking structure 424 remains engaged with the engaging hole 510 on the base 500 under the elastic action of the engaging reset member 4242 .

[0339] When the seat angle needs to be adjusted, the user can operate the unlocking operating member 421 to the unlocking position (eg, Fig.19 ), for example, from the window 312A on the support plate 300 (see Fig.17 ) to pull the connecting member 422, so that the latch 4241 overcomes the elastic action of the locking reset member 4242 and disengages from the locking hole 510 under the pulling action of the connecting member 422. At this time, the seat 400 is unlocked from the base 500, so that it can slide relative to the base 500 to adjust to a desired angle.

[0340] When the seat is adjusted to a desired angle, the user can release the unlocking operating member 421, and the unlocking operating member 421 returns to the position as shown in the figure under the elastic action of the reset member 423. Fig.18 The locking position shown in FIG. 4 is restored to the locking position as shown in FIG. 4 , and the latch 4241 is restored to the locking position as shown in FIG. 4 under the elastic action of the locking reset member 4242. Fig.17 Preferably, the elastic force of the locking reset member 4242 is greater than the elastic force of the reset member 423, so that the connecting member 422 is always kept in a tensioned state.

[0341] refer to Figure 21 to Figure 24 , Fig.21 Another partial perspective view of a child safety seat according to another embodiment of the present disclosure is shown, wherein an upper cover 311 of the support plate 300 is removed to show the internal structure of the support plate 300; Fig. 22 A partial perspective view of the support plate 300 and the seat 400 is shown; Fig.23 Shown along Fig. 22 a cross-sectional view taken along line "DD" in FIG. Fig.24 A perspective view of the support plate 300 is shown, with the upper cover 311 and the bottom plate 313 removed.

[0342] In this embodiment, in order to further improve the comfort of the child safety seat, better adapt to different vehicles, and provide calf supports of different lengths for children, a support plate adjustment mechanism 340 can also be provided on the support plate 300 to adjust the telescopic position of the support plate 300 relative to the seat 400, that is, to adjust the length of the support plate 300 extending from the seat 400.

[0343] In one example, the support plate adjustment mechanism 340 includes an operating member 341 (also referred to as an “operating mechanism”) and a positioning structure 343, wherein, for ease of understanding, Fig.21 The structure of the operating member 341 is mainly shown, but the positioning structure 343 is not shown. Fig. 22 The positioning method between the support plate 300 and the seat 400 is shown. Figure 23 to Figure 24 The connection and cooperation between the positioning structure 343 and the operating member 341 are shown.

[0344] like Fig.21 As shown, the operating member 341 is slidably disposed on the support plate 300 and can be in a locked position (see Fig.21 ) and a release position (not shown). Fig.14 , the operating member 341 is at least partially exposed from the support plate 300. For example, the operating member 341 can be configured as a component spanning the interior of the support plate 300, with its left and right ends respectively exposed on both sides of the support plate 300, thereby forming an adjustment end on both sides of the support plate 300. Thus, the user can operate the operating member 341 through the adjustment end on either side of the support plate 300. Similarly, a window can also be provided on both sides of the support plate 300 to prevent the two adjustment ends from protruding from the outer surface of the support plate 300 and causing unnecessary interference. It should be noted that the operating structure of the present disclosure is not limited to the above structure, and can also be constructed as two separate components arranged on both sides of the support plate 300, and the two are moved synchronously through a connecting structure, but the present disclosure is not limited to this.

[0345] In one example, the support plate adjustment mechanism 340 further includes an elastic member 342. The elastic member 342 is disposed between the operating member 341 and the support plate 300, and constantly provides a force to make the operating member 341 be in or return to the locked position. More specifically, one end of the elastic member 342 abuts against the operating member 341, and the other end abuts against the inner side of the lower cover 312 of the support plate 300. For example, Fig.21 As shown, two elastic members 342 can be symmetrically arranged on the support plate 300. More preferably, the two elastic members 342 are respectively arranged at the left and right ends of the operating member 341 spanning the support plate 300, so that the operating member 341 can slide stably relative to the support plate 300 until it returns to the locked position.

[0346] Further integration Figure 22 to Figure 24The positioning structure 343 is disposed on the support plate 300 and is linked with the operating member 341 so as to position the support plate 300 at at least one position of the seat 400. When the operating member 341 is in the locking position, the positioning structure 343 is locked so that the support plate 300 is positioned relative to the seat 400. When the operating member 341 is operated to the release position (not shown), the positioning structure 343 is driven to release the lock so that the support plate 300 can move relative to the seat 400. In this embodiment, the positioning structure 343 includes a first positioning structure and a second positioning structure, which are respectively disposed on both sides of the support plate 300 (its support plate body) so as to be linked with the operating member 341.

[0347] In one example, if Fig. 22 and Fig.23 As shown, the positioning structure 343 includes a first locking member 3431, which is disposed at the end of the support plate 300 adjacent to the seat 400. As the operating member 341 moves between the locked position and the released position, the first locking member 3431 can be engaged with a corresponding second locking member 430 disposed on the seat 400 (i.e., the first locking member 3431 is located at the locked position) or disengaged from the second locking member 430 (i.e., the first locking member 3431 is located at the unlocked position). In this embodiment, taking the first locking member 3431 as a positioning pin and the second locking member 430 as a positioning groove as an example, more specifically, in Fig. 22 Two positioning slots are shown in the figure, but the present disclosure is not limited thereto, and more positioning slots may be provided to provide more refined position adjustment.

[0348] More specifically, if Fig.23 and Fig.24 As shown, the first locking member 3431 is fixedly disposed on the fixing seat 3432 at the end of the support plate 300, and the operating member 341 is provided with an inclined groove 3411 that slidably cooperates with the fixing seat 3432. For example, the inclined groove 3411 is located at one end of the operating member 341, such as Fig.23 The end opposite to the operated end (i.e., the end exposed from the support plate 300) is shown, and is slidably connected to the fixing seat 3432 by means of linkage pins 3434 disposed on both sides of the fixing seat 3432. The inclined slot 3411 can be inclined downwardly toward the direction in which the support plate 300 is retracted (e.g., Fig.24 3432, but the present disclosure is not limited thereto. In one example, the linkage pin 3434 is integrally formed with the fixing seat 3432 and is respectively protruded on both sides of the fixing seat 3432, but the present disclosure is not limited thereto. For example, in other embodiments, the linkage pin 3434 may also be a pin inserted on the fixing seat 3432 and protruding from both sides of the fixing seat 3432.

[0349] Depend on Fig.24It can be seen from the figure that when the operating member 341 is operated to move from the locking position to the releasing position (not shown), the operating member 341 drives the inclined slot 3411 at one end thereof to move forward, and then as the linkage pin 3434 moves in the inclined slot 3411, the fixing seat 3432 moves downward, thereby driving the first locking member 3431 to disengage from the engagement with the seat 400. At this time, the support plate 300 can slide relative to the seat 400.

[0350] In one example, a return spring 3433 may be further provided between the fixing seat 3432 and the support plate 300 (such as the lower cover 312 of the support plate 300 ) to assist the first locking member 3431 in maintaining or restoring to a position engaged with the seat 400 .

[0351] By adjusting the length of the support plate 300 extending relative to the seat 400, the support plate 300 can be abutted against the backs of different vehicles, making the connection of the child safety seat more secure; in addition, by adjusting the length of the support plate 300 extending relative to the seat 400, different leg spaces can be provided for children sitting on the seat 400, thereby meeting the needs of children of different heights.

[0352] The beneficial effect of the present disclosure is that by providing a seat angle adjustment mechanism on the child safety seat, the seat angle, that is, the angle of the seat relative to the base, can be adjusted, thereby improving the comfort of the child safety seat. At the same time, the unlocking operating component of the seat angle adjustment mechanism is provided on the support plate, so that the operation of the seat angle adjustment mechanism is convenient and will not be interfered by the extension and retraction of the support plate, thereby improving the convenience of seat angle operation and further improving user satisfaction. In addition, such a seat angle adjustment mechanism has a simple structure, is convenient to produce and process, and has low cost. Thus, the problem of the seat angle adjustment mechanism in the prior art is solved, that is, the operating button is mostly provided at the front end of the seat, and when the support plate extends from the front end of the seat, the seat angle adjustment button will be blocked and difficult to be found, or the user's hand will be prevented from touching the button, thereby causing inconvenience to the user.

[0353] refer to Fig.25 , which shows another side cross-sectional view of a child safety seat according to another embodiment of the present disclosure. In order to prevent the support plate 100 from being separated from the seat 200, a limiting mechanism may be provided on the support plate 300. For example, the limiting mechanism may be composed of two limiting plates. Fig.25As shown, a first limiting piece 350 may also be provided on the support plate 300, and a corresponding second limiting piece 440 may be provided on the seat 400. Specifically, the first limiting piece 350 may be provided on the bottom plate 313. For example, the first limiting piece 350 is fixed to one end of the support plate 300 (for example, the end opposite to the end extending from the seat 400) and extends from the end for a distance in a direction, for example, perpendicular to the support plate 300. By cooperating with the first limiting piece 350 and the second limiting piece 440, the stroke of the support plate 300 extending relative to the seat 400 can be limited. The stroke is less than or equal to the distance extended by one end of the support plate 300.

[0354] Specifically, from Fig.25 It can be seen that when the support plate 300 is pulled forward from under the seat 400, the first limiting plate 350 moves forward with the support plate 300 until it abuts against the second limiting plate 440 to limit further movement of the support plate 300, thereby preventing the support plate 300 from separating from the seat 400.

[0355] In addition, another embodiment of the present disclosure further provides a child safety seat and a support plate 600 for the child safety seat. Fig.26 and Fig. 27 The child safety seat with the support plate 600 in different states is shown, wherein the child safety seat of this embodiment may include a seat portion 700 for a child to sit on and a support plate 600 slidably connected to the seat portion 700 . Fig.28 The figure shows a perspective view of the child safety seat according to this embodiment viewed from another angle. Fig.29 700. It should be noted that the positions or directions such as "front" and "rear" described below are defined based on the position of the support plate 600 relative to the seat 700. Specifically, "front" refers to the direction in which the support plate 600 extends from the seat 700, that is, the "front end" of the support plate 600 is the end away from the seat 700 when the support plate 600 is extended; and "rear" refers to the direction in which the support plate 600 retracts toward the seat 700, that is, the "rear end" of the support plate 600 is the end close to the seat 700 when the support plate 600 is extended.

[0356] like Figure 26 to Figure 28As shown, the support plate 600 can slide relative to the seat 700 and extend and retract from the front end of the seat 700. The support plate 600 includes a support plate body 610 and a first connecting member 620, wherein the support plate body 610 may include an upper cover 611 and a lower cover 612, and optionally includes a bottom plate 613. The upper cover 611 and the lower cover 612 form a portion of the support plate 600 exposed to the seat 700. Specifically, the support plate 600 may have other specific structures similar to the support plate 300 in the aforementioned embodiment, which will not be repeated in this embodiment. In addition, the support plate 600 of this embodiment can also be connected to the seat 700 by a connection method and structure similar to that in the aforementioned embodiment, such as the sliding assembly including the sliding members 410A, 410B and the sliding matching members 520A, 520B in the aforementioned embodiment, and / or the second connecting member 330 and the sliding member 402, which will not be repeated here.

[0357] In this embodiment, the support plate 600 can be in the retracted position (see Fig.26 , that is, the position where the support plate 600 is fully retracted into the seat 700) and the fully extended position (see Fig. 27 ). Fig. 27 In addition to the fully extended position shown (i.e., the extreme position where the support plate 600 extends outward from the seat 700), the support plate 600 may also have multiple other extended positions, all of which are located between the retracted position and the fully extended position. In order to enable the support plate 600 to be adjusted and positioned at different positions relative to the seat 700, the support plate 600 may be provided with a support plate adjustment mechanism 640 for adjusting the telescopic position of the support plate 600 relative to the seat 700, i.e., adjusting the length of the support plate 600 extending from the seat 700.

[0358] Fig.30 Show Fig.29 Another perspective view of the support plate 600 is shown, and Fig.31 A partial top perspective view of the child safety seat of this embodiment is shown, wherein: Fig.30 and Fig.31 The upper cover 611 of the support plate 600 is removed in order to show the internal structure of the support plate 600 and explain the construction of the support plate adjustment mechanism 640.

[0359] Different from the above-mentioned embodiment, the support plate adjustment mechanism 640 of this embodiment includes two operating members 641 and a traction member 644 and a driving member 645 corresponding to each operating member 641, and a positioning structure 643 (i.e., a first positioning structure and a second positioning structure arranged on both sides of the support plate body 610 of the support plate 600), wherein the operating member 641 and the corresponding traction member 644 and driving member 645 can be collectively referred to as an "operating mechanism". The operating mechanism is at least partially movably arranged on the support plate 600, and the positioning structure 643 is linked with the operating mechanism to be able to position the support plate 600 at at least one position of the seat 700. Specifically, in combination with Fig.28 , Fig.30 and Fig.31 As shown, the operating member 641 can be slidably disposed on the support plate 600 and can slide between a locked position and a released position. In one example, the operating member 641 can be at least partially exposed from the support plate 600. Two operating members 641 are respectively disposed on both sides of the support plate 600, specifically located inside the support plate body 610 of the support plate 600, and at least a portion of each operating member 641 is exposed from the lower cover 612 of the support plate 600, so that the user can touch the operating member 641 from the outside of the support plate 600 and operate it. Optionally, as Fig.28 As shown, a recessed portion may be provided on both sides of the lower cover 612 of the support plate 600, and a window for exposing the operating member 641 is provided in the recessed portion, thereby preventing the operating member 641 protruding from the support plate 600 from interfering with other components or operators.

[0360] In one example, if Fig.30 As shown, the support plate adjustment mechanism 640 may further include an elastic member 642, which is disposed between the corresponding operating member 641 and the support plate 600, and constantly provides a force to make the corresponding operating member 641 be in or return to the locked position. Specifically, one end of the elastic member 642 abuts against the operating member 641, and the other end abuts against the support plate 600, for example, the inner side of the support plate body 610 thereof.

[0361] like Fig.30 and Fig.31As shown, the driving member 645 can be slidably arranged on the support plate 600 and can move as the corresponding operating member 641 is operated. In one example, the driving member 645 is arranged at the rear end of the support plate 600, that is, the end opposite to the end (i.e., the front end) extending from the seat 700. The traction member 644 includes a first traction member 6441 and a second traction member 6442. The first traction member 6441 is configured to be connected between the operating member 641 and the driving member 645 located on the same side of the support plate 600, so that the driving member 645 and the operating member 641 are linked. The second traction member 6442 is configured to be connected between the operating mechanisms on both sides, for example, between the operating member 641 on one side and the driving member 645 on the other side, so that the operating mechanisms on both sides are linked. In one example, at least one of the first traction member 6441 and the second traction member 6442 can be a flexible element, such as a steel wire.

[0362] In one example, the first traction member 6441 may include a first traction line 6441a, and the first traction line 6441a has a first end, a line body portion, and a second end. Specifically, the first end and the second end of the first traction line 6441a may be fixedly connected to the operating member 641 and the driving member 645, respectively, so that when the operating member 641 is operated, the driving member 645 may be driven to move through the first traction line 6441a.

[0363] Optionally, the first traction member 6441 may further include a first sheath 6441b, which is sleeved on the first traction line 6441a (ie, wraps the first traction line 6441a) to protect the first traction line 6441a, prevent wear and tear, and increase service life. Specifically, both ends of the first sheath 6441b are fixed to the support plate 600, respectively.

[0364] In another example, the first traction member 6441 may include a first traction line 6441a and a first sheath 6441b. The first traction line 6441a has a first end, a line portion, and a second end. The first end of the first traction line 6441a is fixedly connected to the driving member 645, and the second end is fixedly connected to the support plate 600 (for example, the lower cover 612 of the support plate body 610 thereof). Optionally, the line portion is movably arranged on the operating member 641, for example, slidably arranged on the operating member 641. The first sheath 6441b is sleeved on the first traction line 6441a, wherein the first end of the first sheath 6441b abuts against the support plate 600 (for example, the lower cover 612 of the support plate body 610 thereof), and the second end is connected to the operating member 641. When the operating member 641 is operated, the operating member 641 pushes the first sheath 6441b. Since the first sheath 6441b is in contact with the support plate 600 and cannot move, it reacts to the first traction line 6441a sleeved therein, so that the first traction line 6441a drives the driving member 645 to move.

[0365] like Fig.30 As shown, the second traction member 6442 may include a second traction line 6442a, and the second traction line 6442a has a first end, a line body portion, and a second end. Specifically, the first end of the second traction line 6442a is connected to the operating member 641 on one side of the support plate 600, and the second end is connected to the driving member 645 on the other side of the support plate 600. In one example, the second traction member 6442 may also include a second sheath 6442b, which is sleeved on the second traction line 6442a to protect the second traction line 6442a, prevent it from being worn and increase its service life. The two ends of the second sheath 6442b are respectively fixed to the two sides of the support plate 600, that is, the first end of the second sheath 6442b is fixed to one side of the support plate 600 near the driving member 645, and the second end is fixed to the other side of the support plate 600 near the operating member 641. When the operating member 641 on one side of the support plate 600 is operated, the driving member 645 on this side is driven to move, and at the same time, the driving member 645 on the other side is driven to move through the second traction member 6442 .

[0366] like Figure 29 to Figure 31 As shown, the positioning structure 643 is disposed on the support plate 600 and is linked with the driving member 645 (that is, linked with the driving member 645 and the operating member 641 connected to the driving member 645 through the first traction member 6441) to position the support plate 600 at at least one position of the seat 700. When the operating member 641 is in the locked position, the positioning structure 643 is in the locked position, so that the support plate 600 is positioned relative to the seat 700. When the operating member 641 is operated to the release position, it will drive the driving member 645 to move, thereby driving the positioning structure 643 to release the lock, so that the support plate 600 can move relative to the seat 700.

[0367] In one example, the support plate adjustment mechanism 640 may further include a drive member reset spring 6451, which is disposed between the drive member 645 and the support plate 600, for example, with both ends respectively abutting against the drive member 645 and the lower shell 612 of the support plate 600, so as to provide elastic force to the drive member 645, so that the positioning structure 643 matched therewith is in or restored to a locked position, and / or the operating member 641 linked thereto is in or restored to a locked position.

[0368] In one example, if Fig.29 and Fig.30 As shown, the positioning structure 643 may include a first locking member 6431, which is disposed at the end of the support plate 600 adjacent to the seat 700. As the operating member 641 moves between the locking position and the release position, the first locking member 6431 can be engaged with a second locking member 730 correspondingly disposed on the seat 700 (see FIG. Fig.31), so that the first locking member 6431 is in the locked position; or disengages from the second locking member 730, so that the first locking member 6431 is in the unlocked position. Figure 29 to Figure 31 It can be seen that the first locking member 6431 can be configured as a positioning pin, and the second locking member 730 can be correspondingly configured as a positioning groove, but the present disclosure is not limited thereto, and the first locking member 6431 and the second locking member 730 can also be configured as other structures, such as a hook and loop structure, a recessed and raised structure, etc. The child safety seat of the present disclosure can be provided with one or more groups of second locking members 730. Specifically, one or more positioning grooves cooperating with corresponding positioning pins can be respectively provided on both sides of the seat 700, so that the support plate 600 is positioned at one or more positions relative to the seat 700. Optionally, in the present embodiment, a plurality of positioning grooves can be respectively provided on both sides of the seat 700 to provide more refined position adjustment.

[0369] like Fig.30 As shown, a fixed seat 6432 is provided at the end of the support plate 600 adjacent to the seat portion 700 (i.e., the rear end of the support plate 600), and can cooperate with the driving member 645. Specifically, the first locking member 6431 is fixedly provided on the fixed seat 6432, and the corresponding driving member 645 is provided with an oblique groove 6452 that slides with the fixed seat 6432. In one example, the oblique groove 6452 is located at one end (e.g., the rear end) of the driving member 645, and is slidably connected to the fixed seat 6432 by means of the interlocking pins 6434 provided on both sides of the fixed seat 6432. The oblique groove 6452 can be tilted downward toward the rear end of the support plate 600, but the present disclosure is not limited thereto. Specifically, the interlocking pin 6434 can be integrally formed with the fixed seat 6432, and protrudes on both sides of the fixed seat 6432, respectively, but the present disclosure is not limited thereto. For example, in other embodiments, the linkage pin 6434 may also be a pin inserted into the fixing seat 6432 and protruding from both sides of the fixing seat 6432 .

[0370] In one example, a reset member (not shown), such as a reset spring, may be further provided between the fixed seat 6432 and the support plate 600 (such as the lower cover 612 of the support plate 600) to assist the first locking member 6431 in maintaining or restoring the first locking member 6431 to a position engaged with the seat 700. For example, the reset member may be provided below the fixed seat 6432 to provide a force to move the fixed seat 6432 and the first locking member 6431 provided thereon upward.

[0371] When the operating member 641 is operated to move from the locking position to the releasing position, the operating member 641 drives the driving member 645 to move the inclined slot 6452 at one end of the driving member 645, and as the linkage pin 6434 moves in the inclined slot 6452, the fixed seat 6432 moves downward, thereby driving the first locking member 6431 to disengage from the engagement with the seat 700. At this time, the support plate 600 can slide relative to the seat 700. When the operating member 641 is released, the fixed seat 6432 and the first locking member 6431 move upward under the action of the return spring and / or the return spring of the driving member, and lock with the second locking member 730 provided on the seat 700, so that the support plate 600 is locked relative to the seat 700. At the same time, the linkage pin 6434 moves in the inclined slot 6452 to drive the driving member 645 to move, thereby driving the operating member 641 to move from the releasing position to the locking position.

[0372] By setting the support plate adjustment mechanism 640 of this embodiment, when the support plate 600 needs to be adjusted, the operator can pull the operating member 641 on either side (for example, along the Fig.31 In the direction F shown in the figure, the operating member 641 drives the driving member 645 to move via the first traction member 6441, thereby driving the positioning structure 643 (specifically the first locking member 6431) on the same side as the operating member 641 to release the lock. At the same time, the operating member 641 on this side drives the driving member 645 on the other side to move via the second traction member 6442, thereby driving the positioning structure 643 on the other side to release the lock.

[0373] In addition, in other embodiments, an operating member 641 may be provided, and the operating member 641 may be connected to the first positioning structure and the second positioning structure provided on both sides of the support plate 600 (specifically, the support plate body 610) through the first pulling member and the second pulling member, respectively, so as to drive the first positioning structure and the second positioning structure to be unlocked by operating the operating member 641. Specifically, one end of the first pulling member is connected to the operating member 641, and the other end is connected to the first positioning structure; one end of the second pulling member is connected to the operating member 641, and the other end is connected to the second positioning structure. When the operating member 641 moves (e.g., slides) from the locking position to the releasing position, the first pulling member pulls the first positioning structure to unlock, and the second pulling member pulls the second positioning structure to unlock.

[0374] By adjusting the length of the support plate 600 extending relative to the seat 700, the support plate 600 can be abutted against the backs of different vehicles, making the connection of the child safety seat more secure; in addition, by adjusting the length of the support plate 600 extending relative to the seat 700, different leg spaces can be provided for children sitting on the seat 700, thereby meeting the needs of children of different heights.

[0375] In addition, generally speaking, a child car seat (also called a "child seat" or "child carrier") includes a base and a carrier body detachably mounted on the base. The base can be connected to a plug interface on the car seat through an ISOFIX fixture (ISOFIX) provided at its rear end, and the carrier body has a height-adjustable headrest, which can be adjusted to the height of the infant to ensure the safety and comfort of the infant.

[0376] The vehicle body generally has a height adjustment gear for adjusting the height of the headrest. Correspondingly, the headrest is provided with a locking piece that cooperates with the height adjustment gear. The headrest can be adjusted up and down relative to the vehicle body to achieve height adjustment of the headrest. The headrest is locked at a target height by the cooperation between the locking piece and the height adjustment gear. However, when an emergency brake is applied while the vehicle is driving at high speed, the headrest is prone to accidental unlocking due to inertia, resulting in the headrest being unable to effectively protect the infant's head and easily causing damage to the infant's head.

[0377] Based on this, please also refer to Fig.32 and Fig.33 An embodiment of the utility model provides a child carrier M100, comprising a carrier body M20, a headrest M30 and a headrest height adjustment mechanism M10. The headrest M30 is movably arranged on the carrier body M20, and the headrest height adjustment mechanism M10 is located between the headrest M30 and the carrier body M20.

[0378] The carrier body M20 includes a backrest M202. The carrier body M20 also has a height adjustment gear M201 for adjusting the height of the headrest M30 up and down. In the present embodiment, the height adjustment gear M201 is a plurality of positioning grooves provided on the backrest M202, and the plurality of positioning grooves are arranged at intervals along the up and down direction of the carrier body M20. The headrest M30 can be height-adjusted relative to the backrest M202 through the cooperation of the headrest height adjustment mechanism M10 and the height adjustment gear M201. In the present embodiment, the backrest M202 is a fixed structure. Of course, in other embodiments, the backrest M202 can also move along the up and down direction of the carrier body M20, so it is not limited to this.

[0379] Please also see Fig.34 and Fig.35The headrest height adjustment mechanism M10 includes an operating member M12, a locking assembly M14, a safety lock mechanism M16, and a driving member M18. The operating member M12 is slidably disposed on the headrest M30, and the operating member M12 has an initial position, a first operating position, and a second operating position relative to the headrest M30. The locking assembly M14 can be selectively locked with the height adjustment gear M201. The locking assembly M14 has a locking position engaged with the height adjustment gear M201 and a release position separated from the height adjustment gear M201, and can be switched between the locking position and the release position. The safety lock mechanism M16 can lock the locking assembly M14 in the locking position, and under the action of the operating member M12 switching from the initial position to the first operating position, the safety lock mechanism M16 can unlock the locking assembly M14. One end of the driving member M18 is slidably connected to the operating member M12, and the other end of the driving member M18 abuts against the locking assembly M14. When the operating member M12 switches from the first operating position to the second operating position, it can drive the driving member M18 to move, thereby driving the locking assembly M14 to switch from the locking position to the unlocking position.

[0380] Specifically, Fig.34 As shown, the headrest M30 includes a limit plate M32, a positioning plate M34 and two fixed cover plates M36. The limit plate M32 is provided with a limit slot M322 (see Fig.35 ), the operating member M12 is inserted into the limiting groove M322 and can move in the limiting groove M322 in the up and down direction. The positioning plate M34 is connected to the bottom of the limiting plate M32. Each fixed cover plate M36 is fixed to the positioning plate M34 by a plurality of screws.

[0381] like Fig.35 and Fig.37 As shown, the operating member M12 is roughly sheet-shaped, and includes a handle M122 and a transmission member M124 connected to the handle M122. The handle M122 can facilitate the user to pull the operating member M12. The transmission member M124 is used to transmit the movement of the operating member M12 to the driving member M18. The safety lock mechanism M16 includes a limit member provided on the operating member M12. Specifically, in this embodiment, the limit member is a stop pin M162 that is integrally formed with and connected to the transmission member M124. The two stop pins M162 are respectively located on both sides of the transmission member M124, and the extension direction of the stop pin M162 is the same as the movement direction of the transmission member M12. The transmission member M124 is also provided with a receiving groove M1242, a hanging hole M1244 and a sliding groove M1246. The hanging hole M1244 and the sliding groove M1246 are respectively located at both ends of the receiving groove M1242 and are adjacent to the receiving groove M1242. It can be understood that the number of the stop pins M162 can also be one or more.

[0382] like Fig.35 and Fig.36As shown, the locking assembly M14 includes a locking body M142 and a locking rod M144. The top of the locking body M142 has a pivoting portion M146 pivotally connected to the fixed cover plate M36, so that the locking body M142 can rotate relative to the headrest M30. The bottom of the locking body M142 has a matching inclined surface M147 that abuts against the driving member M18. The two sides of the locking body M142 also extend to form two fixed portions M148 fixed to the locking rod M144. The locking rod M144 is inserted into the two fixed portions M148 and can rotate with the locking body M142, thereby switching between the locking position and the unlocking position. In the locked position, the locking rod M144 is locked with the height adjustment gear M201 of the carrier body M20, so that the position of the headrest M30 can be fixed. In the unlocking position, the locking rod M144 is separated from the height adjustment gear M201 of the carrier body M20, so that the user can adjust the height of the headrest M30.

[0383] like Fig.36 As shown, the safety lock mechanism M16 also includes a snap-fit ​​member disposed on the locking body M142. Specifically, in this embodiment, the snap-fit ​​member is provided on the locking body M142 and is located on two snap-fit ​​grooves M164 on both sides of the matching inclined surface M147. Fig.38 As shown, when the stop pin M162 is inserted into the engaging groove M164, the locking body M142 can be prevented from rotating relative to the fixed cover plate M36, thereby locking the locking rod M144 of the locking assembly M14 in the locking position. Fig.39 As shown, when the stop pin M162 is disengaged from the engaging groove M164, the locking body M142 can rotate relative to the fixed cover plate M36, so that the safety lock mechanism M16 can release the lock of the locking assembly M14. It can be understood that the number of the engaging grooves M164 can also be one or more. In addition, it can be understood that the positions of the stop pin M162 and the engaging groove M164 can also be interchanged. In other words, the limiter of the safety lock mechanism M16 can also be an engaging groove. Correspondingly, the engaging member of the safety lock mechanism M16 is the stop pin at this time, and it is only necessary to meet the limiter and the engaging member to cooperate to lock the locking assembly M14 in the locking position. In this embodiment, the locking assembly M14 can be locked or unlocked in the locking position by moving the operating member M12 so that the stop pin M162 is inserted into the engaging groove M164. There is no need to set up other mechanisms. The structure is very simple, so as to achieve the advantages of reducing the overall volume and reducing the production cost. In addition, the moving direction of the operating member M12 is the direction of releasing the lock, and the operation is smooth and labor-saving.

[0384] In order to further lock the locking assembly M14 in the locking position, as Fig.36As shown, the locking assembly M14 further includes a first elastic member M143. One end of the first elastic member M143 abuts against the locking body M142, and the other end of the first elastic member M143 abuts against the inner side of the fixed cover M36, thereby providing an elastic force that keeps the locking rod M144 locked with the height adjustment gear M201, that is, keeps the locking body M14 in the locked position.

[0385] See also Fig.40 The driving member M18 includes a main body M182 and abutment portions M184 located on both sides of the main body M182. The main body M182 is provided with a slot M181 for accommodating the transmission member M124. The main body M182 is also provided with a positioning hole M183 connected to the slot M181. The driving member M18 also includes a pulling member M186 disposed in the positioning hole M183. In this embodiment, the pulling member M186 is a cylindrical positioning pin fixedly disposed in the positioning hole M183. Please refer to Fig.37 and Fig.43 The sliding groove M1246 on the transmission member M124 is generally a long strip hole, which corresponds to the position of the positioning hole M183, and the length of the sliding groove M1246 is larger than the diameter of the positioning hole M183. In other words, the pulling member M186 fixed in the positioning hole M183 can slide up and down in the sliding groove M1246 along the extension direction of the sliding groove M1246. Fig.43 The initial position shown is similar to Fig.44 When the first operating position is moved between the first operating position and the second operating position, the pulling member M186 slides in the sliding groove M1246, so that the driving member M18 does not move with the movement of the operating member M12. Fig.44 The first operating position shown is switched to Fig.45 In the second operating position shown, since the pulling member M186 abuts against the side wall of the sliding groove M1246, the pulling member M186 will move driven by the transmission member M124, so that the driving member M18 moves with the operating member M12, and then the driving member M18 drives the locking body M142 of the locking assembly M14 to rotate relative to the headrest M30 to switch between the locking position and the releasing position.

[0386] like Fig.40 , Fig.41A , Fig.41B and Fig.43 As shown, the abutment portion M184 has a driving inclined surface M188, and the bottom of the locking body M142 has a matching inclined surface M147 that abuts against the driving inclined surface M188. Through the cooperation between the driving inclined surface M188 and the matching inclined surface M147, the up and down linear motion of the driving member M18 can be converted into the rotational motion of the locking body M142.

[0387] See also Fig.41A and Fig.41B In order to make the operating member M12 automatically return to the initial position from the second operating position, the headrest height adjustment mechanism M10 also includes a second elastic member M19 disposed between the headrest M30 and the operating member M12. In this embodiment, the second elastic member M19 is a tension spring. The main body of the second elastic member M19 is located in the receiving groove M1242 of the transmission member M124, one end of the second elastic member M19 is fixed in the hanging hole M1244, and the other end of the second elastic member M19 is fixed on a fixed hook M342 of the headrest M30. The second elastic member M19 can provide an elastic force that makes the operating member M12 automatically return to the initial position from the second operating position and remain in the initial position.

[0388] Combine the following Figures 32 to 45 , the working principle of the above-mentioned child carrier M100 is described in detail.

[0389] When the operating element M12 is in Fig.42 and Fig.43 In the initial position shown in FIG. 1 , the locking rod M144 of the locking assembly M14 is locked with a certain gear of the height adjustment gear M201 under the action of the first elastic member M143, and as shown in FIG. Fig.38 As shown, the stop pin M162 of the safety lock mechanism M16 is inserted into the engaging groove M164, thereby locking the locking assembly M14 in the locking position.

[0390] When the height of the headrest M30 relative to the carrier body M20 needs to be adjusted, the operating member M12 in the initial position can be pulled upward. The operating member M12 overcomes the elastic force of the second elastic member M19 and slides upward from the initial position to the first operating position (state as shown in FIG. Figure 43 to Figure 44 ). Fig.39 As shown, the stop pin M162 of the safety lock mechanism M16 is disengaged from the engaging groove M164, thereby releasing the lock of the locking assembly M14, and the locking assembly M14 can rotate freely between the locking position and the unlocking position. In addition, since the pulling member M186 slides in the sliding groove M1246, the driving member M18 does not move with the movement of the operating member M12.

[0391] Continue to pull the operating member M12 in the first operating position upward, and the operating member M12 continues to overcome the elastic force of the second elastic member M19 and slides from the first operating position to the second operating position (state as shown in FIG. Figure 44 to Figure 45As shown). Since the pulling member M186 abuts against the side wall of the sliding groove M1246, the pulling member M186 will move under the drive of the transmission member M124, so that the driving member M18 moves with the operating member M12. Through the cooperation between the driving inclined surface M188 and the matching inclined surface M147, the up and down linear motion of the driving member M18 can be converted into the rotational motion of the locking body M142. In other words, in the process of the driving member M18 moving upward, the matching inclined surface M147 of the locking component M14 overcomes the elastic force of the first elastic member M143 and rotates under the push of the driving inclined surface M188 of the driving member M18, thereby switching the locking component M14 from the locking position to the unlocking position. At this time, the locking rod M144 of the locking component M14 withdraws from the engagement with the height adjustment gear M201, and the headrest M30 can be freely adjusted up and down relative to the carrier body M20.

[0392] When the headrest M30 is adjusted to the target position, the operating member M12 is released, and the operating member M12 is reset under the elastic action of the second elastic member M19, that is, it returns from the second operating position to the initial position. The locking assembly M14 is switched from the unlocking position to the locking position under the action of the first elastic member M143, and the locking rod M144 of the locking assembly M14 is locked with a certain gear of the height adjustment gear M201 again, and the stop pin M162 of the safety lock mechanism M16 is inserted into the engaging groove M164, thereby locking the locking assembly M14 in the locking position.

[0393] It can be understood that in another embodiment, if the driving slope M188 is directly provided at the lower end of the operating member M12, the operating member M12 can also be used to directly drive the locking assembly M14 to switch from the locking position to the unlocking position, and the driving member M18 can also be omitted.

[0394] The headrest height adjustment mechanism M10 has a safety lock mechanism M16 and the operating member M12 has an initial position, a first operating position and a second operating position. The safety lock mechanism M16 is driven to release the lock of the locking assembly M14 by the movement of the operating member M12 switching from the initial position to the first operating position, so that the subsequent unlocking operation can only be performed when the operating member M12 moves to the first operating position. At the same time, one end of the driving member M18 is slidably arranged on the operating member M12, and the other end of the driving member M18 is in contact with the locking assembly M14. By switching the operating member M12 from the first operating position to the second operating position, the driving member M18 moves and drives the locking assembly M14 to switch from the locking position to the unlocking position, thereby achieving the purpose of unlocking. In other words, when the operating member M12 is in the initial position, under the dual action of the elastic force of the first elastic member M143 and the safety lock mechanism M16, the locking rod M144 of the locking assembly M14 can be firmly locked with the height adjustment gear M201, and even if the child carrier M100 is subjected to some collision during emergency braking of the car, the locking rod M144 will not easily disengage from the height adjustment gear M201, thereby reducing the possibility of gear jumping and improving the safety of the child carrier M100.

[0395] In addition, child carriers are generally designed with multiple levels to accommodate children of different sizes. At the same time, in order to accommodate children of different sizes, the length of the crotch strap needs to be designed to be adjustable.

[0396] In order to securely fix a child in a child carrier such as a safety seat, the child carrier is usually provided with a restraint system, which includes a shoulder strap, a waist belt, a crotch belt and buckles connecting them together. In order to fit children of different sizes, the length of the crotch belt is generally adjustable. However, the structure of the crotch belt length adjustment device of the existing child carrier is complicated and inconvenient to use.

[0397] Therefore, the present disclosure provides a crotch belt length adjustment device, which can adjust the length of the crotch belt in different gears so as to be suitable for children of different sizes, and the gear adjustment of the crotch belt is convenient and quick.

[0398] It should be noted that the child carrier in the present disclosure can be various appliances for carrying children, including but not limited to child safety seats, strollers, dining chairs, rocking chairs, etc. For ease of description, the following description takes the child carrier as a child safety seat as an example.

[0399] The present disclosure will be described in detail below with reference to the accompanying drawings.

[0400] FIG. 46A to FIG. 53B A child carrier N1 using the crotch strap length adjustment device according to the present disclosure is shown. The child carrier N1 includes a seat N10 and a backrest. It should be noted that the seat N10 in the present disclosure refers to a seat shell.

[0401] The crotch belt length adjustment device according to the present disclosure includes a crotch belt provided with a plurality of crotch belt adjustment structures and an adjustment connector.

[0402] Crotch strap

[0403] The crotch strap N100 has a first end N101 and a second end N102. Moreover, at least one of the first end N101 and the second end N102 is a movable end that can be detachably connected to the seat portion N10 of the child carrier N1.

[0404] exist Fig.46A and Fig.46B In the illustrated embodiment, both the first end N101 and the second end N102 are movable ends. However, the present disclosure is not limited thereto, and in one embodiment, one of the first end N101 and the second end N102 is a movable end that can be adjusted in length, or is detachable relative to the seat N10 but cannot be adjusted in length, and the other is a fixed end fixed to the seat N10.

[0405] To adjust the length of the crotch strap N100, Fig.48 As shown, the movable end of the crotch belt N100 is provided with a plurality of crotch belt adjustment structures N101C and N102C arranged along the length direction of the crotch belt N100.

[0406] Specifically, in Fig.48 In the embodiment shown, the first end N101 is provided with a plurality of ( Fig.48 The first crotch strap adjustment structure N101C is shown as two, and the second end N102 is provided with a plurality of ( Fig.48 Two second crotch strap adjustment structures N102C are shown in FIG.

[0407] It should be understood that the number of crotch strap adjustment structures N101C, N102C on each movable end of the crotch strap N100 can be two or more. The more the number of crotch strap adjustment structures N101C, N102C is, the more levels the length of the crotch strap N100 can be adjusted.

[0408] In addition, the first crotch strap adjustment structure N101C on the first end N101 and the second crotch strap adjustment structure N102C on the second end N102 may be the same or different in structure and number.

[0409] Since the plurality of crotch strap adjustment structures N101C and N102C are arranged along the length direction of the crotch strap N100, when the different crotch strap adjustment structures N101C and N102C on the movable end of the crotch strap N100 are connected to the seat N10 of the child carrier N1, the crotch strap lengths between the locations at both ends of the crotch strap N100 connected to the seat N10 (i.e., where the crotch strap adjustment structures N101C and N102C are located or where the fixed ends are located) will be different, thereby achieving adjustment of the length of the crotch strap N100.

[0410] When the first end N101 and the second end N102 of the crotch strap N100 are both movable ends, and the crotch strap adjustment structures N101C and N102C on the movable ends are not connected to the seat N10 of the child carrier N1, the crotch strap N100 can be detached from the seat N100.

[0411] exist Fig.48 In the illustrated embodiment, the crotch strap adjustment structures N101C and N102C are adjustment sleeves formed by folding the end of the crotch strap N100 relative to itself multiple times. Moreover, the folded portion of the end of the crotch strap N100 can be kept in a folded state by sewing, gluing, etc., so that the adjustment sleeve is kept in a fixed size.

[0412] However, the present disclosure is not limited thereto. The crotch strap adjustment structures N101C and N102C may also be adjustment rings, adjustment hooks or adjustment rods, or other structures, as long as they are arranged along the length direction of the crotch strap N100 and can be quickly and conveniently connected to or detached from the seat N10 of the child carrier N1. Moreover, each movable end of the crotch strap N100 may be arranged with one or more of an adjustment sleeve, an adjustment ring, an adjustment hook and an adjustment rod along the length direction of the crotch strap N100.

[0413] In addition, in order to facilitate the connection of the crotch belt N100 with the shoulder belt or waist belt, FIG. 46A to FIG. 47B In the illustrated embodiment, a buckle N20 may be provided on the crotch strap N100.

[0414] More specifically, if Fig.46B and Fig.47B As shown, the buckle N20 may be provided with a buckle through hole N21 for the crotch belt N100 to pass through, so that the buckle N20 can slide along the crotch belt N100, thereby adjusting the position of the buckle N20 on the crotch belt N100.

[0415] Adjust the connector

[0416] In order to enable the crotch strap adjustment structures N101C and N102C on the movable ends to be quickly and conveniently connected to or detached from the seat N10 of the child carrier N1 , an adjustment connector N400 is arranged on the seat N10 .

[0417] The adjustment connector N400 corresponds to the movable end of the crotch strap N100 in terms of number and position, and is configured to be able to engage with one of the crotch strap adjustment structures N101C, N102C on the corresponding movable end to prevent the corresponding movable end from leaving the seat N10, and to be able to disengage from the crotch strap adjustment structures N101C, N102C to allow the corresponding movable end to leave the seat N10.

[0418] Specifically, if FIG. 46A to FIG. 47B As shown, in the embodiment where the first end N101 and the second end N102 of the crotch strap N100 are both movable ends, two adjustment connectors N400 corresponding to the two movable ends are arranged on the seat N10 along the width direction of the seat N10.

[0419] However, in an embodiment where only one of the first end N101 and the second end N102 of the crotch strap N100 is a movable end, only one adjustment connector N400 corresponding to the movable end may be arranged on the seat N10.

[0420] In an embodiment where the first end N101 and the second end N102 of the crotch strap N100 are both movable ends but one end cannot be adjusted in length, two adjustment connectors N400 corresponding to the first end N101 and the second end N102 are arranged on the seat portion N10, but only one crotch strap adjustment structure N101C or N102C is provided on one of the first end N101 and the second end N102, so that the crotch strap N100 can be detached when necessary, but only one end can be adjusted.

[0421] The engagement and disengagement between the adjustment connector N400 and the crotch strap adjustment structures N101C and N102C may be implemented in a variety of ways.

[0422] exist FIG. 52A to FIG. 53B In the illustrated embodiment, the crotch strap adjustment structures N101C and N102C are adjustment sleeves. Correspondingly, the adjustment connector N400 is arranged on the seat portion N10 to be movable between a first position and a second position. Moreover, the adjustment connector N400 is arranged to engage with one of the adjustment sleeves (e.g., the crotch strap adjustment structures N101C and N102C) as the crotch strap adjustment structures N101C and N102C at the first position. Fig.52B As shown), to prevent the corresponding movable end from leaving the seat portion N10 and disengaging from the adjusting sleeve at the second position (as shown Fig.53B As shown), to allow the corresponding active end to leave the seat N10.

[0423] In addition, in order to facilitate the engagement and disengagement between the crotch strap adjustment structures N101C, N102C and the adjustment connector N400, as shown in FIG. Fig.52B and Fig.53BAs shown, the adjustment connector N400 may have a connector engagement portion N410 that engages with or disengages from one of the crotch strap adjustment structures N101C, N102C.

[0424] The connector engaging portion N410 may be rod-shaped or protruding, and its cross-section corresponds in shape and size to the cross-section of the crotch strap adjustment structure N101C, N102C, such as an adjustment sleeve, an adjustment ring or an adjustment hook, so that the connector engaging portion N410 can be easily inserted into or withdrawn from the crotch strap adjustment structure N101C, N102C to implement engagement and disengagement between the adjustment connector N400 and the crotch strap adjustment structure N101C, N102C.

[0425] In order to prevent the upper surface of the seat portion N10 from affecting the comfort of the child due to the provision of the adjustment connector N400, FIG. 46A to FIG. 47B As shown, the adjustment connector N400 is disposed below the upper surface of the seat portion N10. At the same time, the upper surface of the seat portion N10 is also provided with a through hole so that the crotch strap adjustment structures N101C and N102C pass through the through hole and then engage with the adjustment connector N400.

[0426] However, it should be understood that the adjustment connector N400 may be disposed above the upper surface of the seat N10. In this case, the upper surface of the seat N10 may not be provided with a through hole.

[0427] Furthermore, in order to ensure the stability of the connection between the adjustment connector N400 and the crotch strap adjustment structures N101C and N102C, as Fig.52B As shown, the seat portion N10 is provided with a seat portion connection hole N113. The connection member joint portion N410 of the adjustment connection member N400 is connected with one of the crotch strap adjustment structures N101C and N102C and is accommodated in the seat portion connection hole N113. The seat portion connection hole N113 on the seat portion N10 plays a positioning role for the connection member joint portion N410, so that when the crotch strap N100 applies a pulling force to the connection member joint portion N410 via the crotch strap adjustment structures N101C and N102C, the adjustment connection member N400 can avoid moving.

[0428] Of course, the present disclosure is not limited thereto. The engagement and disengagement between the adjustment connector N400 and the crotch strap adjustment structures N101C and N102C may be implemented in a variety of other solutions.

[0429] For example, the crotch strap adjustment structures N101C and N102C may be a plurality of adjustment rings or adjustment hooks arranged on the crotch strap N100 along the length direction of the crotch strap N100. Correspondingly, the adjustment connector N400 may be a hook-shaped member arranged on the seat N10. The user hooks or detaches one of the adjustment rings or adjustment hooks of the crotch strap adjustment structures N101C and N102C from the hook-shaped member of the adjustment connector N400, so that different crotch strap adjustment structures N101C and N102C can be quickly and conveniently connected to or detached from the seat N10 of the child carrier N1, so as to adjust the gear position of the crotch strap N100, thereby adjusting the length of the crotch strap N100.

[0430] In the first embodiment, the hook-shaped member serving as the adjustment connector N400 may be fixed relative to the seat N10, and the user can engage and disengage the crotch strap adjustment structures N101C, N102C with the adjustment connector N400 by moving the adjustment ring or adjustment hook serving as the crotch strap adjustment structures N101C, N102C.

[0431] In the second embodiment, a hook-shaped member as the adjustment connector N400 may be arranged on the seat N10 to be movable between a first position and a second position. Moreover, the adjustment connector N400 may be arranged to engage with one of the crotch strap adjustment structures N101C, N102C at a first position and disengage from the crotch strap adjustment structures N101C, N102C at a second position. In this second embodiment, since the adjustment connector N400 may translate and / or rotate relative to the seat N10 between the first position and the second position, the user may more flexibly implement engagement and disengagement between the crotch strap adjustment structures N101C, N102C and the adjustment connector N400.

[0432] For another example, the crotch strap adjustment structures N101C and N102C may be a plurality of adjustment rods arranged on the crotch strap N100 along the length direction of the crotch strap N100. Correspondingly, the adjustment connector N400 may be a sleeve structure fixedly or movably arranged on the seat N10. The user inserts or withdraws one of the adjustment rods of the crotch strap adjustment structures N101C and N102C into or out of the sleeve structure of the adjustment connector N400, so that the corresponding movable end of the crotch strap N100 is blocked or allowed to leave the seat N10, so as to adjust the gear position of the crotch strap N100, thereby adjusting the length of the crotch strap N100.

[0433] Adjustment of operating parts

[0434] The crotch strap length adjustment device according to the present disclosure may further include an adjustment operating member N300. The adjustment operating member N300 is configured to be exposed from the seat N10 and can be applied with a force to drive the adjustment connecting member N400 to move between the first position and the second position. Thus, the user can conveniently operate the adjustment connecting member N400 to move from the outside of the seat N10 via the adjustment operating member N300.

[0435] It should be understood that the adjustment operating member N300 is not an essential component of the crotch strap length adjustment device according to the present disclosure. In the case where the user can easily access the adjustment connection member N400 from the outside of the seat N10, the adjustment operating member N300 may not be provided. For example, in an embodiment where the crotch strap adjustment structures N101C and N102C are a plurality of adjustment rings or adjustment hooks and the adjustment connection member N400 is a hook-shaped member arranged on the seat N10, the adjustment operating member N300 may not be provided.

[0436] When the adjustment connector N400 is arranged inside the seat N10 for aesthetics and comfort, the user cannot easily access the adjustment connector N400 from the outside of the seat N10. At this time, the crotch strap length adjustment device according to the present disclosure may include an adjustment operating member N300 so that the user can operate the adjustment connector N400 via the adjustment operating member N300.

[0437] In order to facilitate the user to apply force to the adjustment operating member N300, Fig.47B and Fig.54 In the illustrated embodiment, the adjustment operating member N300 may be provided with an operating member force receiving portion N360. The operating member force receiving portion N360 may be a step structure or a protruding structure of the adjustment operating member N300 exposed from the seat portion N10.

[0438] In one embodiment, the adjustment operating member N300 may be formed as one body with the adjustment connecting member N400. In other words, the adjustment operating member N300 may be formed as a part (such as an operating handle) extending out of the seat N10 of the adjustment connecting member N400, so that the user can operate the adjustment connecting member N400.

[0439] exist Fig.47A and Fig.47B In the illustrated embodiment, the adjustment connection member N400 may be a member independent of the adjustment operating member N300. Moreover, the adjustment operating member N300 is movably arranged on the seat N10, and the adjustment connection member N400 is connected to the adjustment operating member N300. Thus, when the adjustment operating member N300 moves relative to the seat N10, it can drive the adjustment connection member N400 to move between the first position and the second position.

[0440] In order to facilitate the connection between the adjustment connecting member N400 and the adjustment operating member N300, as shown in FIG. FIG. 52A to FIG. 53B and Fig.56 As shown, the adjustment connecting member N400 has a connecting member driving portion N420 connected to the adjustment operating member N300.

[0441] exist Figure 54 to Figure 56 In the embodiment shown, the adjustment operating member N300 is provided with an operating member fixing hole N330, the connection member driving part N420 of the adjustment connecting member N400 is provided with a connection member fixing hole N421, and a connection member fixing structure N430 (see Fig.52B and Fig.53B ) passes through the operating member fixing hole N330 and the connecting member fixing hole N421 to connect the adjusting connecting member N400 with the adjusting operating member N300.

[0442] The connecting member fixing structure N430 may be a rivet, a screw or a pin, etc.

[0443] In order to prevent the relative rotation between the adjustment operating member N300 and the adjustment connecting member N400 during connection, which may cause the operating member fixing hole N330 and the connecting member fixing hole N421 to be difficult to align, Figure 54 to Figure 56 In the embodiment shown, the connector driving portion N420 may be configured to have a non-circular cross section (e.g., Fig.56 The flat shape, or elliptical, polygonal shape shown in the figure), the adjustment operating member N300 is provided with an operating member connecting groove N340, the cross-section of the operating member connecting groove N340 corresponds to the cross-section of the connecting member driving part N420 in shape and size, so that the connecting member driving part N420 cannot rotate around its axis in the operating member connecting groove N340.

[0444] Of course, the adjustment connecting member N400 and the adjustment operating member N300 can be connected in a variety of other ways.

[0445] For example, the operating member fixing hole N330 of the adjustment operating member N300 is formed as a threaded hole, and the connecting member driving part N420 of the adjustment connecting member N400 is formed as a threaded structure, so that the adjustment connecting member N400 and the adjustment operating member N300 are directly screwed together.

[0446] Alternatively, the adjustment connecting member N400 and the adjustment operating member N300 may be welded together.

[0447] In order to guide the movement of the adjustment operating member N300 relative to the seat portion N10 , the crotch belt length adjustment device according to the present disclosure may further include an operating member guiding structure N320 , which is disposed on the seat portion N10 and configured to guide the movement of the adjustment operating member N300 .

[0448] exist Fig.50B and Fig.51BIn the illustrated embodiment, the operating member guide structure N320 is a strip-shaped structure, and its two ends are respectively fixed to the seat portion N10 through guide structure fixing members N321. The guide structure fixing members N321 can be screws, anchors or other fixing members.

[0449] Of course, the operating member guiding structure N320 can adopt other various structures. For example, the operating member guiding structure N320 can be a guiding groove, a guiding rib or a guiding pin, which is in a concave-convex matching form with the adjusting operating member N300.

[0450] In order to simplify the operation of the crotch strap length adjustment device for the user, FIG. 50A to FIG. 51B In the illustrated embodiment, the crotch strap length adjustment device according to the present disclosure may further include an operating member reset elastic member N310, which is configured to directly or indirectly drive the adjustment connection member N400 to move toward the first position and maintain the first position.

[0451] Under the elastic force of the operating member reset elastic member N310, the adjustment connecting member N400 tends to move toward the first position engaged with the crotch strap adjustment structures N101C and N102C and tends to remain at the first position. Therefore, after the adjustment connecting member N400 is engaged with one of the crotch strap adjustment structures N101C and N102C on the movable end of the crotch strap N100, the operating member reset elastic member N310 is reset to keep the adjustment connecting member N400 at the first position, so as to ensure the stability of the crotch strap length adjustment device.

[0452] Furthermore, since the operating member reset elastic member N310 drives the adjustment connecting member N400 to remain in the first position, the adjustment connecting member N400 can be prevented from accidentally disengaging from the crotch strap adjustment structure N101C, N102C, thereby improving the safety of the crotch strap length adjustment device.

[0453] When the user is ready to disengage the adjustment connector N400 from the crotch strap adjustment structures N101C, N102C, the user only needs to overcome the elastic force of the operating member reset elastic member N310 to move the adjustment connector N400 toward the second position disengaged from the crotch strap adjustment structures N101C, N102C.

[0454] In one embodiment, the operating member reset elastic member N310 may be directly connected to the adjusting connecting member N400, thereby directly driving the adjusting connecting member N400 to move toward the first position and maintain it at the first position.

[0455] exist FIG. 50A to FIG. 51B In the illustrated embodiment, the operating member reset elastic member N310 is connected to the adjustment operating member N300, thereby indirectly driving the adjustment connecting member N400 to move toward the first position and remain at the first position via the adjustment operating member N300.

[0456] In this embodiment, if FIG. 50A to FIG. 51B As shown, the operating member reset elastic member N310 is a tension spring having a reset elastic member first end N310A and a reset elastic member second end N310B. The reset elastic member first end N310A is connected to the reset elastic member connection structure N112 on the seat N10, and the reset elastic member second end N310B is connected to the reset elastic member connection part N350 on the adjustment operating member N300 (see Fig.55 ).

[0457] In addition, if Fig.54 and Fig.55 As shown, the adjustment operating member N300 may be provided with a reset elastic member accommodating portion N370 for accommodating the operating member reset elastic member N310. Thus, the adjustment operating member N300 and the operating member reset elastic member N310 may be prevented from occupying different spaces respectively, and the structure of the entire crotch strap length adjustment device may be more compact.

[0458] Although relative terms such as "above" and "below" are used in this specification to describe the relative relationship of one component to another component in the drawings, these terms are used in this specification only for convenience, such as the direction of the examples described in the drawings. It is understood that if the device in the diagram is turned upside down, the component described as "above" will become the component "below". Other relative terms such as "top", "bottom", "left", "right", etc. are also used to have similar meanings. When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" arranged on the other structure, or that the structure is "indirectly" arranged on the other structure through another structure.

[0459] In this specification, the terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising", "including" and "having" are used to express an open-ended inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used only as labels and do not limit the quantity of their objects.

[0460] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as those commonly understood by those skilled in the art to which the present disclosure belongs. It should also be understood that terms should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and will not be interpreted as an idealized or overly formal meaning unless explicitly defined herein.

[0461] It should be understood that, although the preferred embodiments are shown and described above, the present disclosure is not limited to the above specific embodiments, and various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the appended claims. Therefore, it should be noted that various modifications and variations cannot be considered to exceed the technical spirit and scope of the present disclosure.

Claims

1. A child safety seat, characterized in that: The child installation seat comprises: seat; A support plate is arranged at the front end of the seat and can slide and retract relative to the seat; wherein a support plate adjustment mechanism is arranged on the support plate, and the support plate adjustment mechanism can adjust the length of the support plate extending from the seat, The support plate includes a support plate body and a first connecting member, one end of the first connecting member is fixed to the support plate body; the other end of the first connecting member extends from the support plate body and is inserted and matched with the seat portion, so that the support plate can be slidably connected to the seat portion. The support plate adjustment mechanism comprises a positioning structure, which is movably arranged on the support plate body so as to be able to position the support plate at at least one position of the seat; The support plate adjustment mechanism further comprises an operating mechanism, which is at least partially movably disposed on the support plate and comprises two operating members, which are slidably disposed on both sides of the support plate and can slide between a locking position and a releasing position. Wherein, when any of the operating members is in the locking position, the operating member drives the positioning structure to lock the support plate and the seat to limit the movement of the support plate relative to the seat; and when the operating member is in the releasing position, the operating member drives the positioning structure to release the lock to allow the support plate to move relative to the seat.

2. The child safety seat according to claim 1, characterized in that: A second connecting member is disposed on the upper surface of the support plate body, and the second connecting member is slidably fitted with the lower surface of the seat portion, wherein the second connecting member is a guide rib or a guide groove.

3. The child safety seat according to claim 1, characterized in that: The operating mechanism also includes: two driving members, each slidably disposed on the support plate and capable of moving as the corresponding operating member is operated; and Two traction member groups, each of which includes a first traction member and a second traction member, wherein the first traction member is configured to be connected between the operating member and the driving member on the same side of the support plate so that the driving member and the operating member are linked, and wherein the second traction member is connected between the operating member on one side of the support plate and the driving member on the other side of the support plate, Wherein, at least one of the first traction member and the second traction member is a flexible element.

4. The child safety seat according to claim 1, characterized in that: The positioning structure comprises a first locking member, which is arranged at the support plate body and can move between a locking position and an unlocking position; The lower surface of the seat is provided with a second locking member, the upper surface of the support plate body is provided with a through hole, and the engaging end of the first locking member can extend and retract from the through hole to engage with and disengage from the second locking member; Wherein, the first locking member is a positioning pin, the second locking member is a positioning hole, a plurality of the second locking members are arranged along the front-to-back direction of the seat, and the positioning structure also includes an elastic member, which is arranged to bias the first locking member toward the direction of extending out of the through hole.

5. The child safety seat according to claim 4, characterized in that: The first connecting member includes two connecting rods, and the connecting rods are arranged on both sides of the supporting plate body; The two ends of the operating member are respectively mounted on the two connecting rods so that they can slide along the extension direction of the connecting rods. The operating member is provided with a pushing rib, and the pushing rib has a guiding slope. When the operating member slides, the guiding slope pushes against the first locking member to move from the locking position to the unlocking position.

6. The child safety seat according to claim 3, characterized in that: The first traction member includes a first traction line, which has a first end, a line body portion, and a second end. The first end and the second end of the first traction line are respectively fixedly connected to the operating member and the driving member on the same side, so that when the operating member is operated, the driving member is driven to move, wherein the first traction member also includes a first sheath, which is disposed on the first traction line.

7. The child safety seat according to claim 3, characterized in that: The first traction member includes a first traction line and a first sheath, a first end of the first traction line is fixedly connected to the driving member on the same side, and a second end of the first traction line is fixedly connected to the support plate; The first sheath is sleeved on the first pulling wire, a first end of the first sheath abuts against the supporting plate, and a second end of the first sheath is connected to the operating member.

8. The child safety seat according to claim 6 or 7, characterized in that: The second traction member includes a second traction line and a second sheath, Wherein, the first end of the second pulling line is connected to the operating member on one side of the support plate, and the second end of the second pulling line is connected to the driving member on the other side of the support plate; and Wherein, the second sheath is disposed on the second traction wire, a first end of the second sheath is fixed to one side of the support plate, and a second end of the second sheath is fixed to the other side of the support plate.

9. A child safety seat, characterized in that: The child safety seat comprises a headrest height adjustment mechanism, and the headrest height adjustment mechanism comprises: An operating member is slidably disposed on the headrest, and the operating member has an initial position, a first operating position, and a second operating position relative to the headrest; A locking assembly capable of being locked with the height adjustment gear, the locking assembly having a locking position and a release position and being switchable between the locking position and the release position; a driving member, one end of which is slidably connected to the operating member, and the other end of which is in contact with the locking assembly, so that the operating member is switched from the first operating position to the second operating position, so that the driving member moves and drives the locking assembly to switch from the locking position to the unlocking position; and The safety lock mechanism comprises a limiting member arranged on the operating member and a snap-fitting groove arranged on the locking assembly. When the operating member is switched from the first operating position to the second operating position, the limiting member is inserted and engaged with the snap-fitting groove to lock the locking assembly in the locking position, so that the locking assembly is switched from the locking position to the unlocking position; when the operating member is switched from the initial position to the first operating position, the limiting member is separated from the snap-fitting groove, so that the safety lock mechanism releases the locking of the locking assembly; Wherein, the sliding direction of the limiting member is the same as the sliding direction of the operating member.

10. A child safety seat, characterized in that: The child safety seat comprises a seat and a crotch strap length adjustment device provided on the seat, wherein the crotch strap length adjustment device comprises: A crotch strap having a movable end detachably connected to the seat portion of the child carrier, wherein the movable end is provided with a plurality of crotch strap adjustment structures arranged along the length direction of the crotch strap; an adjustment connector, arranged on the seat, capable of engaging with one of the crotch strap adjustment structures on the movable end to prevent the corresponding movable end from leaving the seat, and capable of disengaging from the crotch strap adjustment structure to allow the corresponding movable end to leave the seat; wherein the adjustment connector is arranged on the seat to be movable between a first position and a second position, and the adjustment connector is arranged to engage with one of the crotch strap adjustment structures at the first position, and disengage from the crotch strap adjustment structure at the second position; an adjustment operating member, which is arranged to be exposed from the seat and can be applied with a force to drive the adjustment connecting member to move between the first position and the second position; and The operating member resets the elastic member, and is configured to directly or indirectly drive the adjusting connecting member to move toward the first position and maintain it at the first position.

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