Child safety seat

Abstract

A child safety seat according to the present application comprises: a base; the supporting leg assembly is pivotally connected to the base and comprises a supporting leg, and the supporting leg can be switched between a supporting position and a folding position relative to the base; the movable mechanism is movably arranged on the base; the locking and unlocking mechanism comprises a locking piece and an unlocking piece which are movably arranged on the base, the locking piece and the unlocking piece are connected with each other, the locking piece is configured to lock the movable mechanism, and the unlocking piece is configured to unlock the movable mechanism by the locking piece; the first misuse prevention mechanism is configured to prevent the unlocking piece from moving when the supporting leg is located at the folding position, so that the movable mechanism is prevented from moving relative to the base; when the supporting leg is located at the supporting position, the first misuse prevention mechanism relieves blocking on movement of the unlocking piece so as to allow the unlocking piece to move, and the movable mechanism can move relative to the base.

Description

Technical Field

[0001] The present application relates to a child safety seat, which includes an anti-misuse structure. Background Art

[0002] Child safety seats are usually installed in vehicles such as cars to provide a safe and comfortable riding environment for children. In order to stably install the child safety seat in the car, the child safety seat generally includes a base and a seat connected to the base, where the base is used to be installed in the car and the seat is for the child to sit on. The seat can usually adjust its position relative to the base. For example, it can rotate between a forward position facing the front of the vehicle and a rearward position facing the rear of the vehicle, and can also adjust its front-back position or pitch angle relative to the base. The base is generally stably connected to the car seat through the common action of ISOFIX and support feet. ISOFIX is also called a standard fixing member, which is, for example, engaged with a connecting member of the car seat at the joint of the seat and the backrest. The support feet usually extend from the base and support on the floor of the car to prevent the child safety seat from tipping over.

[0003] For the convenience of the user to carry, when not in use, the support feet can usually be folded to the bottom of the base. However, due to this folding function, the user may forget to switch the support feet to the support position when installing the child safety seat in the car, making the base be installed unstably and posing a safety hazard.

[0004] Therefore, there is a need to provide an improved child safety seat to solve the above problems. Summary of the Invention

[0005] A child safety seat according to the present application includes: a base; a support foot assembly pivotally connected to the base and including support feet, the support feet being able to be switched between a support position and a folded position relative to the base; a movable mechanism movably disposed on the base; a locking and unlocking mechanism including a locking member and an unlocking member movably disposed on the base, the locking member and the unlocking member being connected to each other, the locking member being configured to lock the movable mechanism, and the unlocking member being configured to release the locking of the movable mechanism by the locking member; a first anti-misuse mechanism configured to prevent the unlocking member from moving when the support feet are in the folded position, thereby preventing the movable mechanism from moving relative to the base; when the support feet are in the support position, the first anti-misuse mechanism releases the block on the movement of the unlocking member to allow the unlocking member to move, so that the movable mechanism can move relative to the base.

[0006] In one embodiment, the movable mechanism has a plurality of adjustment positions, the locking member is configured to lock the movable mechanism at one of the plurality of adjustment positions, the unlocking member can be moved to an unlocking position to release the locking of the movable mechanism by the locking member at the adjustment position, the unlocking member can also be moved to a locking position to drive the locking member to lock the movable mechanism at any one of the plurality of adjustment positions, and when the support leg is in the folded position, the first anti-misuse mechanism prevents the unlocking member from moving from the locking position to the unlocking position.

[0007] In one embodiment, the first anti-misuse mechanism includes: a positioning member that can be engaged with the support leg assembly and the unlocking member. When the support leg is in the folded position, the positioning member abuts against the unlocking member to prevent the unlocking member from moving. When the support leg is in the supporting position, the positioning member disengages from the unlocking member to allow the unlocking member to move.

[0008] In one embodiment, the positioning member includes: a first end and a second end; and an intermediate portion located between the first end and the second end and pivotally connected to the base; wherein, when the support leg is in the folded position, the first end abuts against the unlocking member to prevent the unlocking member from moving, and when the support leg is in the supporting position, the support leg assembly abuts against the second end to cause the positioning member to pivot, so that the first end disengages from the unlocking member.

[0009] In one embodiment, the moving direction of the unlocking member intersects with the direction of the movement trend generated by the acting force of the unlocking member on the first end, so that the first end prevents the unlocking member from moving.

[0010] In one embodiment, the unlocking member includes a first wall and a second wall with intersecting extending directions. The first wall abuts against the first end along the moving direction of the unlocking member, so that the first end generates a movement trend under the acting force of the unlocking member. The second wall abuts against the first end, and the extending direction of the second wall intersects with the direction of the movement trend generated by the acting force of the unlocking member on the first end, so that the first end prevents the unlocking member from moving.

[0011] In one embodiment, the first anti-misuse mechanism further includes a first reset member, which is arranged between the base and the positioning member and biases the first end towards the direction of abutting against the unlocking member.

[0012] In one embodiment, the support leg assembly includes a positioning rod. When the support leg is in the supporting position, the positioning rod abuts against the second end, so that the positioning member disengages from the unlocking member, thereby allowing the unlocking member to move.

[0013] In one embodiment, the locking and unlocking mechanism further includes: a linkage member connected to the unlocking member and the locking member; wherein, the unlocking member slides in a front-rear direction to drive the linkage member to pivot about an up-down direction axis, and the linkage member drives the locking member to move in a left-right direction to selectively lock or unlock the movable mechanism.

[0014] In one embodiment, the locking and unlocking mechanism further includes a fourth restoring member disposed between the locking member and the base, and the locking member is configured to lock the movable mechanism through the fourth restoring member.

[0015] In one embodiment, the base is provided with a limiting member, the limiting member includes an elastic limiting recess, and the support leg assembly is provided with a positioning rod; when the support leg is in the folded position, the positioning rod is located in the limiting recess, and the limiting recess applies a resistance to prevent the support leg from leaving the folded position.

[0016] In one embodiment, the limiting recess is configured to face away from the supporting position, and both ends of the limiting recess exceed the axis of the positioning rod.

[0017] In one embodiment, the limiting member has an elastic end, and when the support leg is in the supporting position, the positioning rod compresses the elastic end.

[0018] In one embodiment, the base is provided with a limiting member, and when the support leg is in the folded position, the limiting member abuts against the second end to prevent the positioning member from pivoting due to the acting force of the unlocking member on the first end.

[0019] In one embodiment, the support leg is pivotally connected to the base; the unlocking member includes a button portion exposed to the outside of the base; and when the support leg is in the supporting position, the button portion is located between the support leg and the movable mechanism.

[0020] In one embodiment, the movable mechanism is ISOFIX, the ISOFIX can move relative to the base between a retracted position and at least one extended position, and the ISOFIX is used to connect to an automobile seat.

[0021] In one embodiment, the ISOFIX can slide relative to the base and is provided with a plurality of engaging holes arranged at intervals to allow the locking member to be inserted into one of the plurality of engaging holes to lock the ISOFIX in the retracted position or the extended position.

[0022] In one embodiment, the child safety seat further includes a second anti-misuse mechanism; when the support feet are in the support position and the ISOFIX is in the extended position, the ISOFIX disengages from the second anti-misuse mechanism, and the second anti-misuse mechanism engages with the support foot assembly to hold the support feet in the support position; and when the ISOFIX is in the retracted position, the ISOFIX contacts the second anti-misuse mechanism, causing the second anti-misuse mechanism to disengage from the support foot assembly, allowing the support feet to be switched between the support position and the folded position.

[0023] In one embodiment, the second anti-misuse mechanism includes: a engaging member for engaging with the support foot assembly; a second reset member for driving the engaging member to engage with the support foot assembly; and a cable, one end of the cable being connected to the engaging member; when the ISOFIX is in the extended position and the support feet are in the support position, the engaging member is engaged with the support foot assembly under the action of the second reset member to hold the support feet in the support position, and when the ISOFIX is in the retracted position, the ISOFIX drives the other end of the cable, causing the cable to drive the engaging member to disengage from the support foot assembly.

[0024] In one embodiment, the support foot assembly is provided with an engaging groove, when the ISOFIX is in the extended position and the support feet are in the support position, the engaging groove corresponds to the engaging member, thereby allowing the engaging member to be inserted into the engaging groove to lock the support foot assembly, and when the support feet are in the folded position, the engaging groove and the engaging member are arranged in a misaligned manner.

[0025] In one embodiment, the second anti-misuse mechanism further includes: a slider connected to the other end of the cable, when the ISOFIX is in the retracted position, it abuts against the slider to drive the slider to move and drive the cable; and a third reset member disposed between the base and the slider, biasing the slider in the direction of the ISOFIX.

[0026] In one embodiment, the base includes: a slider groove for guiding the movement of the slider; and a slider positioning member for preventing the slider from disengaging from the slider groove.

[0027] In one embodiment, the slider is provided with a limiting groove, and the slider positioning member can abut against the groove wall of the limiting groove to limit the sliding range of the slider.

[0028] In one embodiment, a guiding groove is provided in the base, and the guiding groove guides the moving direction of the engaging member.

[0029] In one embodiment, the child safety seat includes a seat located above the base. The movable mechanism is a turntable connected to the seat, and the turntable can rotate relative to the base in a horizontal direction; or the movable mechanism is an adjustment mechanism connected to the seat, and the adjustment mechanism can rotate relative to the base in an up-and-down direction; or the movable mechanism is a top abutting member, and the top abutting member can move telescopically relative to the base, and the top abutting member is used to abut against the backrest of the vehicle seat.

[0030] In one embodiment, a second anti-misuse mechanism is further included. The second anti-misuse mechanism is configured to: when the movable mechanism moves to one of the plurality of adjustment positions, lock the support leg in the support position, thereby restricting the support leg from rotating relative to the base, and when the movable mechanism moves to another one of the plurality of adjustment positions, the second anti-misuse mechanism can release the locking of the support leg in the support position to allow the support leg to move to the folded position. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Embodiments of the present application will be described in conjunction with exemplary views, in which:

[0032] Figure 1 is a side view of the base of the child safety seat according to the present application, where the support leg is in the folded position and the ISOFIX is in the retracted position;

[0033] Figure 2 is a side view of the base, where the support leg is in the support position and the ISOFIX is in the retracted position;

[0034] Figure 3 is a side cross-sectional view of the base, where the support leg is in the folded position;

[0035] Figure 4 is Figure 3 a partial enlarged view of the boxed part of

[0036] Figure 5 is a side cross-sectional view of the base, where the support leg is in the support position;

[0037] Figure 6 is Figure 5 a partial enlarged view of the boxed part of

[0038] Figure 7 is a perspective view of the base;

[0039] Figure 8 is Figure 7 a partial enlarged view of the boxed part of

[0040] Figure 9Is a perspective view of the base, where the ISOFIX is in the retracted position, and where some components of the locking and unlocking mechanism are removed to clearly show other components;

[0041] Figure 10 Is Figure 9 A partial enlarged view of the boxed part of;

[0042] Figure 11 Is a perspective view of the base, where the ISOFIX is in the extended position, and where some components of the locking and unlocking mechanism are removed to clearly show other components;

[0043] Figure 12 Is Figure 11 A partial enlarged view of the boxed part of.

[0044] List of reference numerals

[0045] 1 Child safety seat

[0046] 100 Support foot assembly

[0047] 110 Support foot

[0048] 120 Connecting seat

[0049] 121 Engaging groove

[0050] 130 Positioning rod

[0051] 200 ISOFIX

[0052] 210 Sliding member

[0053] 211 Engaging hole

[0054] 300 First anti-misuse mechanism

[0055] 310 Positioning member

[0056] 311 First end

[0057] 312 Second end

[0058] 313 Intermediate portion

[0059] 320 Unlocking member

[0060] 321 Button portion

[0061] 322 Unlocking chute

[0062] 323 Unlocking recess

[0063] 323a Side wall

[0064] 323b Top wall

[0065] 324 Extension

[0066] 325 Linkage End

[0067] 330 Linkage Member

[0068] 331 First Arm

[0069] 332 Second Arm

[0070] 333 Linkage Shaft

[0071] 340 Limiting Member

[0072] 341 Elastic End

[0073] 342 Limiting Recess

[0074] 350 Locking Member

[0075] 360 First Reset Member

[0076] 370 Fourth Reset Member

[0077] 400 Second Anti-Misuse Mechanism

[0078] 420 Slide Block

[0079] 421 Limiting Groove

[0080] 430 Engaging Member

[0081] 440 Cable

[0082] 450 Second Reset Member

[0083] 460 Third Reset Member

[0084] 500 Base

[0085] 510 Support Foot Bracket

[0086] 511 Guide Groove

[0087] 520 Rotation Shaft

[0088] 530 Slide Block Groove

[0089] 540 Slide Block Positioning Member

[0090] 600 Locking and Unlocking Mechanism Detailed Implementation Modes

[0091] Although the present invention is described and illustrated herein with reference to specific embodiments, the invention should not be limited to the details shown. Rather, various modifications may be made to these details within the scope of the equivalent solutions of the claims and without departing from the invention.

[0092] The directional descriptions such as "front", "rear", "upper", and "lower" involved in this text are only for convenience of understanding. The present invention is not limited to these directions and can be adjusted according to actual situations.

[0093] Refer to Figure 1 and Figure 2 The overall description is based on the base 500, the support leg assembly 100, the moving mechanism, the first anti-misuse mechanism 300, the second anti-misuse mechanism 400, and the locking and unlocking mechanism 600 of the child safety seat 1 according to the present application.

[0094] The support leg assembly 100 can rotate relative to the base 500. The support leg assembly 100 includes a support leg 110, and the support leg 110 can rotate between a folded position (such as Figure 1 , Figure 3 and Figure 4 shown) and a support position (such as Figure 2 , Figure 5 and Figure 6 shown). When the support leg 110 is in the folded position, the support leg 110 fits with the base 500, and the included angle between them is approximately zero degree, so as to reduce the space occupied by the support leg assembly 100 and the base 500 and facilitate storage. When the support leg 110 is in the support position, at least part of the support leg 110 is spaced from the base 500, and the included angle between the support leg 110 and the base 500 is greater than zero. When the base 500 abuts against the vehicle seat, the support leg 110 can abut against the vehicle floor mat, and then it can be stably installed on the vehicle seat.

[0095] The moving mechanism can move relative to the base 500, and the moving mechanism can move to multiple adjustment positions relative to the base 500.

[0096] The locking and unlocking mechanism 600 can move relative to the base 500. Specifically, the locking and unlocking mechanism 600 includes a locking member 350 and an unlocking member 320 that can move relative to the base 500. The locking member 350 is configured to lock the moving mechanism at one of the multiple adjustment positions. The locking member 350 and the unlocking member 320 are connected to each other, and the unlocking member 320 is configured to be operable to move between a locking position and an unlocking position. When the unlocking member 320 is in the locking position, the locking member 350 locks the moving mechanism at one of the adjustment positions. When the unlocking member 320 moves to the unlocking position, it drives the locking member 350 to move to release the locking of the moving mechanism by the locking member 350 at one of the adjustment positions.

[0097] The first anti-misuse mechanism 300 is configured such that when the support leg 110 of the support leg assembly 100 is in the folded position, it blocks the movement of the unlocking member 320, thereby blocking the movement of the unlocking member 320 to the unlocking position and blocking the movement of the locking member 350 to maintain the locking of the locking member 350 on the movable mechanism at one of the adjustment positions. When the support leg 110 is in the support position, the unlocking member 320 is allowed to move, thereby allowing the unlocking member 320 to move to the unlocking position and driving the locking member 350 to move to release the locking of the locking member 350 on the movable mechanism at one of the adjustment positions to allow the movable mechanism to move. It can be seen that at this time, the unlocking member 320 can also move from the unlocking position to the locking position to lock the movable mechanism at one of the adjustment positions again.

[0098] The second anti-misuse mechanism 400 is configured such that when the movable mechanism moves to one of the multiple adjustment positions, it locks the support leg 110 in the support leg assembly 100 in the support position, thereby restricting the rotation of the support leg assembly 100 relative to the base 500. When the movable mechanism moves to another one of the multiple adjustment positions, the locking of the second anti-misuse mechanism 400 on the support leg 110 in the support position can be released to allow the support leg 110 to move to the folded position.

[0099] Referring to Figure 1 and Figure 2 In this embodiment, the movable mechanism is an ISOFIX 200. The ISOFIX 200 can slide relative to the base 500 and can move relative to the base 500 to multiple adjustment positions. Specifically, the multiple adjustment positions include, for example, Figure 1 showing the retracted position of the ISOFIX 200, at which time the ISOFIX 200 is substantially fully retracted into the base 500, and the maximum extended position (not shown), at which time the ISOFIX 200 extends from the base 500 by the maximum length to engage with a corresponding buckle (not shown) of the vehicle seat. Additionally, the multiple adjustment positions further include multiple extended positions between the retracted position and the maximum extended position, at which time the length of the ISOFIX 200 protruding from the base 500 is between the minimum length of the ISOFIX 200 protruding from the base 500 when the ISOFIX 200 is substantially fully retracted into the base 500 and the maximum length of the ISOFIX 200 protruding from the base 500, such that the length of the ISOFIX 200 protruding from the base 500 can be adjusted according to the actual situation. The locking member 350 is configured to lock the ISOFIX 200 in the retracted position or any one of the extended positions.

[0100] Referring to Figure 4 and Figure 6, in this embodiment, the first anti-misuse mechanism 300 is configured such that when the support leg 110 of the support leg assembly 100 is in the folded position, it blocks the movement of the unlocking member 320, thereby preventing the unlocking member 320 from moving to the unlocking position and preventing the locking member 350 from moving, so as to maintain the locking of the ISOFIX 200 by the locking member 350 at one of the adjustment positions, thereby restricting the movement of the ISOFIX 200. And when the support leg 110 is in the support position, the unlocking member 320 is allowed to move, thereby allowing the unlocking member 320 to move to the unlocking position, and then driving the locking member 350 to move, so as to release the locking of the ISOFIX 200 by the locking member 350 at one of the adjustment positions, so that the ISOFIX 200 can move and can move to other adjustment positions. At this time, the unlocking member 320 can also move from the unlocking position to the locking position, so that the locking member 350 locks the ISOFIX 200 again at other adjustment positions.

[0101] Referring to Figure 10 and Figure 12 , in this embodiment, the second anti-misuse mechanism 400 is configured such that when the ISOFIX 200 moves to one of the multiple extended positions, the support leg 110 in the support leg assembly 100 is locked in the support position, thereby restricting the rotation of the support leg assembly 100 relative to the base 500. And when the ISOFIX 200 moves to the retracted position, the locking of the support leg 110 in the support position by the second anti-misuse mechanism 400 can be released to allow the support leg 110 to move to the folded position.

[0102] For ease of description, the front-back direction, left-right direction, and up-down direction are defined according to the position of the base 500. However, this does not limit the installation direction of the base 500, and the front-back direction, left-right direction, and up-down direction do not have to be strictly perpendicular to each other. For ease of description, the direction where the support leg assembly 100 is located is called the front (i.e., Figure 1 and Figure 2 the left side), and the direction where the ISOFIX 200 is located is called the rear (i.e., Figure 1 and Figure 2 the right side).

[0103] In this embodiment, the ISOFIX 200 slides in the front-rear direction. The ISOFIX 200 includes a sliding member 210. A plurality of engaging holes 211 may be provided on the side surface of the sliding member 210 to allow the locking member 350 to be inserted into any one of the engaging holes 211 so as to lock the sliding member 210 together with the ISOFIX 200 at an appropriate retracted position or any extended position. The sliding member 210 may be, for example, a hollow pipe fitting extending in the front-rear direction, but is not limited thereto. The engaging holes 211 are opened at the inner side of the sliding member 210 in the left-right direction to face the locking member 350. The plurality of engaging holes 211 are arranged in the front-rear direction such that when the sliding member 210 is in the retracted position or any extended position, one of the plurality of engaging holes 211 corresponds to the position of the locking member 350 to allow the locking member 350 to be inserted into the engaging hole 211, thereby locking the sliding member 210 at the retracted position or any extended position.

[0104] Refer to Figures 3 to 6 to specifically describe the support foot assembly 100 according to the present application.

[0105] In this embodiment, the support foot 110 of the support foot assembly 100 is a rod-shaped member, one end of which is pivotally connected to the base 500, for example, pivotally connected to the front end of the base 500, and the other end is a free end and can support the automotive floor mat. The support foot 110 rotates relative to the base 500 about an axis in the left-right direction to Figure 1 the folded position shown in Figure 2 and the support position shown in

[0106] In this embodiment, the support foot assembly 100 further includes: a connecting seat 120 and a positioning rod 130.

[0107] The connecting seat 120 is used to connect the support foot 110 to the base 500. With reference to Figure 10 , the connecting seat 120 is a metal sheet or a plurality of juxtaposed metal sheets, which are fixedly connected to the support foot 110 and thus rotate together with the support foot 110. The positioning rod 130 extends in the left-right direction and is fixedly installed on the connecting seat 120 and can also rotate together with the support foot 110. In this embodiment, a support foot bracket 510 is provided at the front end of the base 500. The connecting seat 120 is rotatably connected to the support foot bracket 510 through an axis (not shown) extending in the left-right direction. Therefore, the support foot 110, the positioning rod 130 and the connecting seat 120 can rotate relative to the base 500 about an axis extending in the left-right direction together.

[0108] The first anti-misuse mechanism 300, the second anti-misuse mechanism 400, and the locking and unlocking mechanism 600 are at least partially disposed in the base 500 and are generally located between the support leg assembly 100 and the ISOFIX 200.

[0109] Refer to Figures 3 to 6 、 Figure 8 for a detailed description of the locking and unlocking mechanism 600 according to the present application.

[0110] In this embodiment, the unlocking member 320 in the locking and unlocking mechanism 600 is configured to slide relative to the base 500 in the front-rear direction. The unlocking member 320 includes a button portion 321 and an unlocking chute 322. The button portion 321 is exposed outside the base 500 for the user to operate, and the unlocking chute 322 is sleeved on a positioning member (such as a cross bar) of the base 500 to limit the sliding range of the unlocking member 320. When the support leg 110 is in the supporting position, the button portion 321 is located between the support leg assembly 100 and the ISOFIX 200 and can move in the front-rear direction towards the support leg assembly 100 to the unlocking position and move in the front-rear direction towards the ISOFIX 200 to the locking position.

[0111] In this embodiment, the support leg 110 is pivotally connected to the front end of the base 500. The button portion 321 of the unlocking member 320 is disposed at the top of the front end of the base 500 and is exposed outside the base 500. When the support leg 110 is in Figure 5 and Figure 6 the supporting position shown, the button portion 321 is located between the support leg 110 and the ISOFIX 200. More specifically, the button portion 321 is located at the rear side of the top end of the support leg 110. In this way, when the user converts the support leg 110 to the supporting position, the button portion 321 of the unlocking member 320 can be conveniently operated, so as to further move the ISOFIX 200 to the extended position.

[0112] The locking position of the unlocking member 320 is Figures 3 to 6 the rearward position shown, and its unlocking position is the forward position not shown in the figure. When the unlocking member 320 is not restricted by the first anti-misuse mechanism 300, the user can press the unlocking member 320 through the button portion 321 to move it from the locking position to the unlocking position. It should be understood that in other embodiments, the unlocking member 320 can also be a rotating member or a cam member, etc., as long as it can move according to the operation of the user.

[0113] The locking member 350 in the locking and unlocking mechanism 600 is in the shape of a rod extending in the left-right direction and can slide in the base 500 to insert into or disengage from the sliding member 210. The locking member 350 is disposed in the base 500 and is defined to move in the left-right direction.

[0114] The locking and unlocking mechanism 600 further includes a fourth biasing member 370 and a linkage member 330 connected to the unlocking member 320 and the locking member 350.

[0115] The user can drive the linkage member 330 through the unlocking member 320, and then drive the locking member 350, so that the locking member 350 disengages from the sliding member 210, thereby allowing the sliding member 210 to move, and further allowing the ISOFIX 200 to move. The fourth biasing member 370 is disposed between the base 500 and the locking member 350, and biases the locking member 350 toward inserting into the sliding member 210, so that the locking member 350 tends to remain in the position of locking the sliding member 210.

[0116] The front end of the unlocking member 320 (i.e., Figure 7 and Figure 8 the lower right of Figure 7 and Figure 8 the upper left of

[0117] abuts against the first anti-misuse mechanism 300. The unlocking member 320 has an extension portion 324 extending backward (i.e.,

[0118] the upper left of

[0119] and Figure 7 and Figure 8 into the base 500), and a linkage end 325 located at the rear end of the extension portion 324. The linkage end 325 is pivotally connected to at least one linkage member 330. In this embodiment, the linkage end 325 is pivotally connected to two linkage members 330, each linkage member 330 is connected to a locking member 350, and a fourth biasing member 370 is provided between each locking member 350 and the base 500.

[0120] In other embodiments, the linkage member 330 and the locking member 350 may have different forms and are still applicable to the present application. For example, the linkage member 330 may be a cam, a lever, a cable, a slide rail, etc., as long as it can transmit the movement of the unlocking member 320 to the locking member 350. The locking member 350 may be a caliper, a ratchet, etc., as long as it can lock and release the sliding member 210 according to the movement of the unlocking member 320.

[0121] Referring to Figures 3 to 6 、 Figure 7 , the first anti-misuse mechanism 300 according to the present application will be specifically described. Referring to Figure 8 , the first anti-misuse mechanism 300 includes a positioning member 310 and a first reset member 360.

[0122] The positioning member 310 can be engaged with the support leg assembly 100 and the unlocking member 320. When the support leg 110 is in the folded position, the positioning member 310 abuts against the unlocking member 320 and prevents the unlocking member 320 from moving to the unlocking position. When the support leg 110 is in the supporting position, the positioning member 310 disengages from the unlocking member 320 to allow the unlocking member 320 to move. More specifically, the positioning member 310 includes a first end 311, a second end 312, and an intermediate portion 313. The first end 311 and the second end 312 are opposite to each other, the intermediate portion 313 is located between the first end 311 and the second end 312, and is pivotally connected to the base 500. In this embodiment, a rotating shaft 520 extending in the left-right direction is provided on the base 500, and the intermediate portion 313 is pivotally connected to the base 500 through the rotating shaft 520. Specifically, the intermediate portion 313 is pivotally connected to the support leg bracket 510 of the base 500 through the rotating shaft 520.

[0123] More specifically, the first end 311 of the positioning member 310 abuts against the unlocking recess 323 of the unlocking member 320. The direction in which the unlocking member 320 moves between the locking position and the unlocking position intersects with the direction of the movement trend of the first end 311 caused by the force exerted on the first end 311 by the unlocking member 320, so that the first end 311 prevents the unlocking member 320 from moving. For example, as Figure 4 shown, the unlocking member 320 moves back and forth between the locking position and the unlocking position, and the rotation direction of the first end 311 of the positioning member 310 is an arc around the rotating shaft 520. When the user attempts to move the unlocking member 320 towards the unlocking position, the user pushes the unlocking member 320 forward, so that the unlocking recess 323 of the unlocking member 320 abuts against the first end 311 of the positioning member 310. Therefore, the positioning member 310 has a tendency to rotate counterclockwise due to the force exerted on it by the unlocking member 320, and this counterclockwise rotation direction intersects with the direction of movement of the unlocking member 320, so that even if the unlocking member 320 is pushed forward, it cannot drive the positioning member 310 to rotate counterclockwise to disengage from the unlocking member 320.

[0124] The unlocking member 320 includes a first wall 323a and a second wall 323b whose extending directions intersect each other. The first wall abuts against the first end 311 along the moving direction of the unlocking member 320, so that the first end 311 has a tendency to move under the action of the unlocking member 320. The second wall 323b abuts against the first end 311, and the extending direction of the second wall 323b intersects with the direction of the movement tendency of the first end 311 under the action of the unlocking member 320, so that the first end 311 prevents the unlocking member 320 from moving. More specifically, the unlocking recess 323 may include a side wall 323a extending in the up-down direction and a top wall 323b extending in the front-back direction. The side wall 323a and the top wall 323b are connected to each other to form a substantially right-angled accommodating space. When the first end 311 of the positioning member 310 is accommodated in the unlocking recess 323, the user pushes the unlocking member 320 forward, so that the side wall 323a abuts against the first end 311, making the first end 311 have a tendency to rotate counterclockwise under the action of the unlocking member 320, while the top wall 323b abuts against the first end 311 to prevent the positioning member 310 from continuing to rotate counterclockwise.

[0125] The first biasing member 360 is disposed between the positioning member 310 and the base 500, specifically between the positioning member 310 and the support leg bracket 510, and is configured to bias the positioning member 310 (specifically the first end 311) towards abutting against the unlocking member 320. In this embodiment, the first biasing member 360 is a torsion spring sleeved on the rotating shaft 520. In other embodiments, the first biasing member 360 may also be a compression spring, an elastic filler, etc.

[0126] When the support leg 110 is in the folded position, the positioning member 310 abuts against the unlocking member 320 under the action of the first biasing member 360 (see Figure 8 , which will be described in detail below) to prevent the unlocking member 320 from moving.

[0127] When the support leg 110 is in Figure 5 and Figure 6 the shown supporting positions, the support leg assembly 100 abuts against the second end 312. More specifically, the positioning rod 130 rotates with the support leg 110 to abut against the second end 312 of the positioning member 310, causing the positioning member 310 to pivot clockwise against the biasing force of the first biasing member 360, so that the first end 311 of the positioning member 310 disengages from the unlocking recess 323 of the unlocking member 320. At this time, the user can operate the unlocking member 320 to move it to the unlocking position in the front-back direction.

[0128] In this embodiment, the child safety seat 1 further includes a limiting member 340. The limiting member 340 is configured to prompt the user that the support leg 110 has rotated to the supporting position and assist in keeping the support leg 110 in the folded position.

[0129] The limiting member 340 is provided on the base 500, is a plate extending in the front-rear direction, and has an elastic end 341 and a limiting recess 342 that are opposite in the front-rear direction. Specifically, the elastic end 341 is located at the front end of the limiting member 340 and is formed as an arc-shaped recess downward. The rear end of the limiting member 340 bends downward and forward, and the lower surface of the rear end is recessed upward to form the limiting recess 342. The limiting member 340 has a certain elasticity, but can provide a supporting force to hold the positioning rod 130 of the support foot assembly 100 at the limiting recess 342. For example, the limiting member 340 can be made of a plastic material with a certain elasticity. The limiting recess 342 can be configured to face away from the supporting position, that is, toward the rear, and both ends of the limiting recess 342 exceed the axis of the positioning rod 130. In this way, the limiting recess 342 of the limiting member 340 is sufficient to exert a resistance on the positioning rod 130 to keep it at the position corresponding to the folded position of the support foot 110, thereby preventing the support foot 110 from accidentally disengaging from the folded position.

[0130] When the support foot 110 is in Figure 3 and Figure 4 the folded position shown, the support foot assembly 100 (specifically, the positioning rod 130) disengages from the second end 312 of the positioning member 310. At this time, the positioning rod 130 is located in the limiting recess 342 of the limiting member 340. As described above, the shape and position of the limiting recess 342 of the limiting member 340 are configured to exert a resistance on the positioning rod 130 to prevent the positioning rod 130 from leaving the folded position along with the support foot 110.

[0131] At the same time, the elastic end 341 of the limiting member 340 abuts against the second end 312 of the positioning member 310 to prevent the positioning member 310 from pivoting counterclockwise under the pressure of the unlocking member 320, thereby preventing the unlocking member 320 from moving toward the unlocking position. Of course, in other embodiments, the counterclockwise rotation of the positioning member 310 can be limited only by the elastic end 341 of the limiting member 340, or only by the direction in which the unlocking member 320 moves between the locking position and the unlocking position intersecting with the moving trend direction of the first end 311 under the action of the unlocking member 320 to limit the counterclockwise rotation of the positioning member 310. In addition, when the support foot 110 is in the supporting position, the positioning rod 130 compresses the elastic end 341 of the limiting member 340 to provide a signal to the user that the support foot 110 is in the supporting position.

[0132] Referring to Figures 9 to 12Describe the second anti-misuse mechanism 400 according to the present application. Generally, when the support leg 110 is in the support position and the ISOFIX 200 is in the extended position, the second anti-misuse mechanism 400 locks the support leg 110 in the support position, and when the support leg 110 is in the support position and the ISOFIX 200 is in the retracted position, the second anti-misuse mechanism 400 allows the support leg 110 to be switched between the support position and the folded position. The principle is that when the support leg 110 is in the support position and the ISOFIX 200 is in the extended position, the ISOFIX 200 disengages from the second anti-misuse mechanism 400, and the second anti-misuse mechanism 400 engages with the support leg assembly 100 to hold the support leg 110 in the support position; and when the ISOFIX 200 is in the retracted position, the ISOFIX 200 contacts the second anti-misuse mechanism 400, causing the second anti-misuse mechanism 400 to disengage from the support leg assembly 100, allowing the support leg 110 to be switched between the support position and the folded position.

[0133] The second anti-misuse mechanism 400 includes a slider 420, a engaging member 430, a cable 440, a second reset member 450, and a third reset member 460.

[0134] The engaging member 430 is configured to engage with or disengage from the engaging groove 121 of the support leg assembly 100 as the ISOFIX 200 moves, to prevent or allow the rotation of the support leg 110. In this embodiment, the engaging groove 121 is formed on the connecting seat 120 of the support leg assembly 100. Since the connecting seat 120 rotates with the support leg 110 between the support position and the folded position, the engaging groove 121 rotates with the support leg 110, and when the support leg 110 is in the support position, the engaging groove 121 faces the engaging member 430, and the second reset member 450 biases the engaging member 430 to be inserted into the engaging groove 121 of the connecting seat 120. Thus, when the support leg 110 is in the support position and the engaging member 430 engages with the engaging groove 121, the support leg 110 can be prevented from leaving the support position. In other embodiments, the engaging groove 121 can also be formed on the support leg 110 as long as it rotates with the support leg 110. Specifically, the second reset member 450 is a compression spring disposed between the engaging member 430 and the base 500, specifically between the engaging member 430 and the support leg bracket 510, which biases the engaging member 430 forward, that is, in the direction of being inserted into the engaging groove 121. Therefore, when the support leg 110 is in the support position, the engaging member 430 tends to lock the connecting seat 120, thereby preventing the rotation of the support leg 110. And when the support leg 110 is in the folded position, the engaging groove 121 and the engaging member 430 are misaligned.

[0135] According to the second anti-misuse mechanism 400 of the present application, the engaging member 430 is connected to the cable 440, and the engaging member 430 is operated by the ISOFIX 200 through the cable 440. That is, when the ISOFIX 200 moves to the retracted position, it drives the engaging member 430 through the cable 440, so that the engaging member 430 is no longer engaged with the engaging groove 121. Specifically, one end of the cable 440 is connected to the engaging member 430, and the other end is connected to the slider 420, so that the slider 420 can drive the engaging member 430 through the cable 440. As described above, the sliding member 210 can slide relative to the base 500 in the front-rear direction, and the slider 420 is arranged in the direction in which the sliding member 210 slides toward the retracted position, specifically the front. When the sliding member 210 slides toward the retracted position, it will abut against the slider 420, thereby driving the slider 420 to move, and the slider 420 then drives the engaging member 430 to move through the cable 440. When the ISOFIX 200 is in the retracted position, the ISOFIX 200 abuts against the slider 420 through the sliding member 210, thus driving the other end of the cable 440, so that the cable 440 drives the engaging member 430 to disengage from the engaging groove 121 against the action of the second return member 450. At the same time, the second return member 450 is compressed by the engaging member 430 toward the base 500, thereby allowing the connecting seat 120 to be switched between the support position and the folded position along with the support leg 110. The third return member 460 is arranged between the base 500 and the slider 420, and biases the slider 420 in the direction of the ISOFIX 200. When the support leg 110 is in the support position and the ISOFIX 200 is in the extended position, the engaging groove 121 corresponds to the engaging member 430, the sliding member 210 disengages from the slider 420, and the third return member 460 drives the slider 420 to move toward the ISOFIX 200. The slider 420 drives the engaging member 430 to move through the cable 440. At the same time, the engaging member 430 is inserted into the engaging groove 121 of the connecting seat 120 under the elastic stretching force of the second return member 450, thereby locking the connecting seat 120 along with the support leg 110 in the support position.

[0136] It should be understood that in other embodiments, the engaging member 430 may be in other forms, such as a bolt, a caliper, a cam, etc., as long as it can be driven by the cable 440 to lock or release the connecting seat 120. Correspondingly, the engaging groove 121 may also be in forms such as a positioning hole, a friction plate, a protrusion, etc., so as to cooperate with the engaging member 430.

[0137] A slider groove 530 and a slider positioning member 540 are formed on a base 500. The slider groove 530 is formed in the base 500 or is installed in the base 500 as an independent component to guide the movement of a slider 420 and a sliding member 210. The slider positioning member 540 is fixed to the base 500 to prevent the slider 420 from detaching from the base 500. More specifically, the slider groove 530 is a groove extending in the front - rear direction and having an open top to allow the slider 420 and the sliding member 210 to slide in the front - rear direction in the slider groove 530. The slider positioning member 540 is a plate - shaped member extending in the left - right direction, and at least partially encloses the top opening of the slider groove 530, thereby jointly forming a partially enclosed space with the slider groove 530.

[0138] The slider 420 is provided with a limit groove 421, and the slider positioning member 540 can abut against the groove walls at both ends of the limit groove 421 to limit the sliding range of the slider 420. More specifically, the limit groove 421 is a groove formed by recessing downward from the top surface of the slider 420. The limit groove 421 extends in the front - rear direction and has a dimension in the front - rear direction larger than the dimension of the slider positioning member 540. The slider positioning member 540 is embedded in the limit groove 421. Therefore, when the slider 420 slides in the front - rear direction, the slider positioning member 540 can abut against the groove walls at both ends of the limit groove 421 in the front - rear direction to define the sliding range of the slider 420 in the front - rear direction.

[0139] A guide groove 511 is formed on the base 500 to guide and define the moving direction of a guide engaging member 430. In this embodiment, the guide groove 511 is a groove provided on a support leg bracket 510 and extends in the front - rear direction. The engaging member 430 is inserted into the guide groove 511, and thus the moving range of the engaging member 430 in the front - rear direction is defined by the guide groove 511.

[0140] In summary, this embodiment proposes a child safety seat, which includes a support leg assembly 100, an ISOFIX 200, a first anti - misuse mechanism 300, a second anti - misuse mechanism 400, and a locking and unlocking mechanism 600. The locking and unlocking mechanism 600 can be operated to move to unlock or lock the ISOFIX. When the support leg 110 is in the folded position, the first anti - misuse mechanism 300 prevents the movement of the locking and unlocking mechanism 600, thereby locking the ISOFIX. When the support leg 110 is in the support position, the first anti - misuse mechanism 300 releases the block on the movement of the locking and unlocking mechanism 600, and at this time the ISOFIX can move. Moreover, when the ISOFIX 200 moves to the extended position, the second anti - misuse mechanism 400 locks the support leg 110 in the support position. When the ISOFIX 200 moves to the retracted position, the second anti - misuse mechanism 400 releases the locking of the support leg 110 in the support position, thereby allowing the support leg 110 to rotate between the support position and the folded position.

[0141] According to the first anti-misuse mechanism 300 and the second anti-misuse mechanism 400 of this embodiment, a linkage exists between the support leg assembly 100 and the ISOFIX 200. Only when the support leg 110 is in the support position is it allowed for the ISOFIX 200 to extend from the child safety seat to engage with the vehicle seat. In this way, when the user installs the child safety seat onto the vehicle seat, the support leg 110 must first be switched to the support position before the ISOFIX 200 can be further engaged with the vehicle seat, thereby preventing the user from forgetting to deploy the support leg 110. Further, when the ISOFIX 200 is in the retracted position, it is allowed for the support leg 110 to be switched from the support position to the folded position, that is, to prevent the user from directly folding the support leg 110 without switching the ISOFIX 200 to the retracted position after separating the child safety seat from the vehicle seat. Therefore, the state where the child safety seat is in a state of "the ISOFIX 200 is in the extended position while the support leg 110 is in the folded position" is avoided, because when the child safety seat is in such a state, the user can connect the ISOFIX 200 to the vehicle seat without deploying the support leg 110, resulting in the support leg 110 not being correctly installed.

[0142] In other embodiments, the child safety seat 1 further includes a seat disposed above the base 500. For example, the seat can rotate horizontally relative to the base 500 to adapt to the usage requirements of the infant sitting in the seat in different situations. Specifically, a turntable connects the base 500 and the seat, and the turntable can rotate horizontally relative to the base 500 along with the seat, and the turntable can rotate horizontally to multiple angles along with the seat. At this time, the moving mechanism can be the turntable. When the moving mechanism is the turntable, the multiple adjustment positions of the turntable correspond to multiple positions after the turntable rotates horizontally to multiple different angles (such as the forward position, the lateral position, the backward position). The specific structure of the turntable can refer to the existing technologies in the art, and the description thereof is omitted in this application.

[0143] The first anti-misuse mechanism 300 is configured such that when the support leg 110 of the support leg assembly 100 is in the folded position, it blocks the movement of the unlocking member 320, and further blocks the movement of the unlocking member 320 to the unlocking position and the movement of the locking member 350, so as to maintain the locking of the locking member 350 at one of the adjustment positions to the turntable and restrict the rotation of the turntable (for example, the turntable can be provided with multiple engaging holes in its circumferential direction to allow the turntable to be locked in the forward position, the backward position, the lateral position, etc.). When the support leg 110 is in the support position, it is allowed for the unlocking member 320 to move, and further allowed for the unlocking member 320 to move to the unlocking position, and further drive the locking member 350 to move, so as to release the locking of the locking member 350 at one of the adjustment positions to the turntable, so that the turntable can rotate and can rotate to other adjustment positions. At this time, the unlocking member 320 can also move from the unlocking position to the locking position to allow the locking member 350 to lock the turntable again at any adjustment position.

[0144] The second anti-misuse mechanism 400 is configured such that when the turntable rotates to one of a plurality of adjustment positions and locks the support leg 110 in the support leg assembly 100 in the support position, the rotation of the support leg assembly 100 relative to the base 500 is restricted. When the turntable rotates to another one of the plurality of adjustment positions, the second anti-misuse mechanism 400 can release the lock of the support leg 110 in the support position to allow the support leg 110 to move to the folded position.

[0145] For example, the rearward position (i.e., the seat faces the rear of the vehicle) is the normal use position of the child safety seat 1 in the vehicle. When the support leg 110 is switched to the folded position, the first anti-misuse mechanism 300 engages with the turntable to lock the seat in the forward position. The user needs to first switch the support leg 110 to the support position before rotating the seat to the rearward position, thus preventing the user from forgetting to open the support leg 110. Moreover, when the seat is in a position such as the rearward position, the second anti-misuse mechanism 400 locks the support leg 110 in the support position. The user needs to first rotate the seat to the forward position before switching the support leg 110 to the folded position, thus preventing the support leg 110 from accidentally disengaging from the support position during use.

[0146] In other embodiments, the seat can change the pitch angle relative to the base 500 to adapt to the usage requirements of the infants sitting on the seat in different situations. Specifically, the adjustment mechanism connects the base 500 and the seat, and the adjustment mechanism can be adjusted relative to the base 500 in the pitch angle along with the seat, and the adjustment mechanism can be adjusted to different pitch angles along with the seat. At this time, the movable mechanism can be the adjustment mechanism. When the movable mechanism is the adjustment mechanism, the multiple adjustment positions of the adjustment mechanism correspond to the multiple positions after the adjustment mechanism moves to multiple different pitch angles (such as the upright position, the supine position, etc.). The specific structure of the adjustment mechanism can refer to the prior art in this field, and the description thereof is omitted in this application.

[0147] The first anti-misuse mechanism 300 is configured such that when the support leg 110 of the support leg assembly 100 is in the folded position, it blocks the unlocking member 320 from moving to the unlocking position and blocks the locking member 350 from moving, so as to maintain the locking of the locking member 350 at one of the adjustment positions to the adjustment mechanism and restrict the movement of the adjustment mechanism (for example, the pitch adjustment mechanism may be provided with a plurality of engaging holes in its pitch adjustment path to allow the pitch adjustment mechanism to be locked in the upright position, the supine position, etc.). When the support leg 110 is in the support position, the unlocking member 320 is allowed to move to the unlocking position, and then drives the locking member 350 to move, so as to release the locking of the locking member 350 at one of the adjustment positions to the adjustment mechanism, allowing the adjustment mechanism to rotate and be rotatable to other adjustment positions. At this time, the unlocking member 320 can also move from the unlocking position to the locking position to allow the locking member 350 to lock the adjustment mechanism again at any adjustment position.

[0148] The second anti-misuse mechanism 400 is configured such that when the adjustment mechanism rotates to one of the plurality of adjustment positions and locks the support leg 110 in the support leg assembly 100 in the support position, the rotation of the support leg assembly 100 relative to the base 500 is restricted. When the adjustment mechanism rotates to another one of the plurality of adjustment positions, the second anti-misuse mechanism 400 can release the locking of the support leg 110 in the support position to allow the support leg 110 to move to the folded position.

[0149] In other embodiments, the child safety seat 1 further includes a backrest member disposed behind the base 500. The backrest member can move relative to the base 500. For example, the backrest member can rotate or slide relative to the seat to adjust the length of the backrest member protruding from the base 500, so that the backrest member can abut against the vehicle seat backrest at different distances from the base 500, preventing the base 500 from tipping over during use. At this time, the moving mechanism can be the backrest member. When the backrest member is the moving mechanism, the plurality of adjustment positions of the backrest member correspond to the plurality of positions after the backrest member protrudes from the base 500 by different lengths (such as the extended position or the retracted position, etc.). The specific structure of the backrest member can refer to the prior art in this field, and the description thereof is omitted in this application.

[0150] The first anti-misuse mechanism 300 is configured such that when the support leg 110 of the support leg assembly 100 is in the folded position, it blocks the unlocking member 320 from moving to the unlocking position and blocks the locking member 350 from moving, so as to maintain the locking of the locking member 350 on the abutting member at one of the adjustment positions and restrict the movement of the abutting member (for example, the abutting member may be provided with a plurality of engaging holes in the front-rear direction to lock the abutting member at an appropriate front-rear position to adapt to the front-rear gap between the child safety seat and various types of vehicle seats and stably abut the child safety seat against the vehicle seat). When the support leg 110 is in the support position, the unlocking member 320 is allowed to move to the unlocking position, and then drives the locking member 350 to move, so as to release the locking of the locking member 350 on the abutting member at one of the adjustment positions, allow the abutting member to move, and be movable to other adjustment positions. At this time, the unlocking member 320 can also move from the unlocking position to the locking position to lock the movable mechanism again by the locking member 350 at any adjustment position.

[0151] The second anti-misuse mechanism 400 is configured such that when the abutting member moves to one of the plurality of adjustment positions and locks the support leg 110 in the support leg assembly 100 in the support position, the rotation of the support leg 110 relative to the base 500 is restricted. When the abutting member moves to another one of the plurality of adjustment positions, the second anti-misuse mechanism 400 can release the locking of the support leg 110 in the support position to allow the support leg 110 to rotate to the folded position.

[0152] Although the preferred embodiments are shown and described herein, it should be understood that these embodiments are given by way of example only. Those skilled in the art will envision many variations, changes, and substitutions without departing from the spirit of the present invention. Accordingly, the appended claims are intended to cover all such variations that fall within the spirit and scope of the present invention.

Claims

1. A child safety seat, wherein: The child safety seat comprises: A base; a support leg assembly pivotally connected to the base and comprising a support leg, the support leg being convertible between a support position and a folded position relative to the base; A movable mechanism, movably disposed on the base; a locking and releasing mechanism, comprising a locking member and a releasing member movably disposed on the base, the locking member and the releasing member being connected to each other, the locking member being configured to lock the movable mechanism, and the releasing member being configured to release the locking member from locking the movable mechanism; A first anti-misuse mechanism is configured to prevent the release member from moving when the support leg is in the folded position, thereby preventing the movable mechanism from moving relative to the base; when the support leg is in the supporting position, the first anti-misuse mechanism releases the obstruction to the movement of the release member to allow the release member to move, so that the movable mechanism can move relative to the base.

2. The child safety seat according to claim 1, wherein: The movable mechanism has multiple adjustment positions, the locking member is configured to lock the movable mechanism in one of the multiple adjustment positions, the release member can move to a release position to release the locking member from locking the movable mechanism at the adjustment position, and the release member can also move to a locking position to drive the locking member to lock the movable mechanism at any one of the multiple adjustment positions. When the supporting foot is in the folded position, the first anti-misuse mechanism prevents the release member from moving from the locking position to the release position.

3. The child safety seat according to claim 1, wherein: The first anti-misuse mechanism comprises: A positioning member can be engaged with the support leg assembly and the release member, when the support leg is in the folded position, the positioning member abuts against the release member to prevent the release member from moving, when the support leg is in the supporting position, the positioning member disengages from the release member to allow the release member to move.

4. The child safety seat according to claim 3, wherein: The positioning member comprises: a first end and a second end; and a middle portion located between the first end and the second end and pivotally connected to the base; Wherein, when the supporting foot is in the folded position, the first end abuts against the release member to prevent the release member from moving, and when the supporting foot is in the supporting position, the supporting foot assembly abuts against the second end to cause the positioning member to pivot, so that the first end disengages from the release member.

5. The child safety seat according to claim 4, wherein: The moving direction of the release member crosses the direction of the movement tendency of the first end caused by the force of the release member, so that the first end prevents the release member from moving.

6. The child safety seat according to claim 4, wherein: The release member includes a first wall and a second wall whose extension directions intersect with each other, the first wall abuts against the first end along the moving direction of the release member, so that the first end is subjected to the force of the release member and has a tendency to move, the second wall abuts against the first end, and the extension direction of the second wall intersects with the direction of the movement tendency generated by the first end subjected to the force of the release member, so that the first end prevents the release member from moving.

7. The child safety seat according to claim 4, wherein: The support foot assembly includes a positioning rod. When the support foot is in the supporting position, the positioning rod abuts against the second end to make the positioning member disengage from the release member, thereby allowing the release member to move.

8. The child safety seat according to claim 1, wherein: The base is provided with a limiting member, the limiting member includes an elastic limiting recess, and the supporting foot assembly is provided with a positioning rod; When the supporting foot is in the folded position, the positioning rod is located in the limiting recess, and the limiting recess applies a resistance to prevent the supporting foot from leaving the folded position.

9. The child safety seat according to claim 4, wherein: The base is provided with a limiting member. When the supporting leg is in the folded position, the limiting member abuts against the second end to prevent the positioning member from pivoting due to the force of the releasing member acting on the first end.

10. The child safety seat according to claim 1, wherein: The movable mechanism is ISOFIX, which can move between a retracted position and at least one extended position relative to the base, and is used to connect with a car seat.

11. The child safety seat according to claim 10, wherein: The child safety seat also includes a second anti-misuse mechanism; When the support leg is in the support position and the ISOFIX is in the extended position, the ISOFIX is disengaged from the second anti-misuse mechanism, and the second anti-misuse mechanism is engaged with the support leg assembly to keep the support leg in the support position; and When the ISOFIX is in the retracted position, the ISOFIX contacts the second anti-misuse mechanism, so that the second anti-misuse mechanism disengages from the support leg assembly, allowing the support leg to switch between the support position and the folded position.

12. The child safety seat according to claim 11, wherein: The second anti-misuse mechanism comprises: A clamping member, used for clamping the supporting foot assembly; a second restoring member, driving the engaging member to engage the supporting leg assembly; and a cable, one end of which is connected to the engaging member; When the ISOFIX is in the extended position and the supporting foot is in the supporting position, the engaging member is engaged with the supporting foot assembly under the action of the second reset member to keep the supporting foot in the supporting position, and when the ISOFIX is in the retracted position, the ISOFIX drives the other end of the cable so that the cable drives the engaging member to disengage from the supporting foot assembly.

13. The child safety seat according to claim 12, wherein: The supporting leg assembly is provided with a snap-fitting groove. When the ISOFIX is in the extended position and the supporting leg is in the supporting position, the snap-fitting groove corresponds to the snap-fitting piece, thereby allowing the snap-fitting piece to be inserted into the snap-fitting groove to lock the supporting leg assembly. When the supporting leg is in the folded position, the snap-fitting groove and the snap-fitting piece are offset.

14. The child safety seat according to claim 12, wherein: The second anti-misuse mechanism also includes: a slider connected to the other end of the cable, which abuts against the slider to drive the slider to move and bring the cable with it when the ISOFIX is in the retracted position; and A third restoring member is disposed between the base and the slider to bias the slider toward the ISOFIX.

15. The child safety seat according to claim 2, wherein: It also includes a second anti-misuse mechanism, which is configured to: when the movable mechanism moves to one of the multiple adjustment positions, lock the support leg at the support position, thereby limiting the rotation of the support leg relative to the base; and when the movable mechanism moves to another one of the multiple adjustment positions, the second anti-misuse mechanism can release the lock of the support leg at the support position to allow the support leg to move to the folded position.

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