CN109305072B

CN109305072B - Child safety seat support

Info

Publication number: CN109305072B
Application number: CN201710616120.8A
Authority: CN
Inventors: 刘修平
Original assignee: SUNNYLOVE BABY PRODUCTS ZHUHAI CO LTD
Current assignee: SUNNYLOVE BABY PRODUCTS ZHUHAI CO LTD
Priority date: 2017-07-26
Filing date: 2017-07-26
Publication date: 2024-01-30
Anticipated expiration: 2037-07-26
Also published as: CN109305072A; WO2019019502A1

Abstract

The invention relates to a child safety seat support base comprising: base (1), ISOFIX mechanism (2) and supporting leg (3), ISOFIX mechanism (2) with supporting leg (3) all set up on base (1), ISOFIX mechanism (2) can be for base (1) flexible in order to connect the anchor point, still include: the misuse-preventing association mechanism can associate the telescopic state of the ISOFIX mechanism (2) with the supporting locking state of the supporting leg (3), so that the telescopic state of the ISOFIX mechanism (2) can be switched between a folding position and a stable supporting position only when the supporting leg (3) is in the storage state, and the ISOFIX mechanism (2) can be switched between the storage position and an overhanging connecting position only when the supporting leg (3) is in the supporting locking state. The invention can ensure that the supporting legs and the ISOFIX mechanism are simultaneously utilized for fixing when the safety seat is used, thereby eliminating the potential safety hazard when a user installs the safety seat.

Description

Child safety seat support

Technical Field

The invention relates to the field of child safety seats, in particular to a child safety seat supporting seat.

Background

Child safety seats are seats that effectively improve the safety of children riding by restraining the child within the safety seat. In the event of a car crash or sudden deceleration, the seat may reduce the impact on the child and limit the movement of the child's body thereby alleviating injury to them. Among the currently existing child safety seats, the child safety seat based on the ISOFIX interface of the european mandatory standard is widely used.

Considering that the height difference exists between the plane of the vehicle seat and the floor in the vehicle, the connection of the ISOFIX interface is difficult to bear the inertial stress condition from the collision or sudden deceleration of the vehicle, so that the front end of the supporting seat of the child installation seat is provided with supporting legs for supporting the child installation seat more stably, so that the child installation seat and the floor in the vehicle can be reliably supported, and the safety protection effect of the child seat is improved.

For a user, the installation of the child safety seat is related to a plurality of positions, so that the situation that part of the installation is not in place or the installation is forgotten due to carelessness or insufficient experience is easy to happen, for example, the user installs the ISOFIX interface when the supporting legs are not adjusted to the tight using position, or the user releases the locking state of the supporting legs at the using position under the good installation state and then continues to use the supporting seat, at this time, the supporting seat can be kept stable on the vehicle seat when the vehicle is stationary or stably moves at a uniform speed, but when the vehicle is collided or suddenly rotated, and the like, the vehicle speed is greatly changed, the supporting seat is easy to cause the problem that the supporting seat swings or overturns greatly because the supporting legs are not well abutted against the ground in the vehicle, and serious injury or frightening is caused to the child taking the child safety seat.

Disclosure of Invention

The invention aims to provide a child safety seat supporting seat which can eliminate potential safety hazards of a user during installation.

To achieve the above object, the present invention provides a child safety seat support including: base, ISOFIX mechanism and supporting leg, ISOFIX mechanism with the supporting leg all sets up on the base, ISOFIX mechanism can for the base is flexible in order to connect the anchor point, still includes: the misuse-preventing association mechanism can associate the telescopic state of the ISOFIX mechanism with the supporting locking state of the supporting leg, so that the supporting leg can be switched between the folding position and the stable supporting position only when the telescopic state of the ISOFIX mechanism is in the storage state, and the ISOFIX mechanism can be switched between the storage position and the overhanging connecting position only when the supporting leg is in the supporting locking state.

Further, the misuse preventing association mechanism comprises a first driving structure and a second driving structure, wherein the first driving structure and the second driving structure are arranged inside the base, the first driving structure can release the expansion limit on the ISOFIX mechanism when the supporting leg is in a stable supporting position, and the second driving mechanism can lock the supporting leg when the ISOFIX mechanism leaves a storage position, so that the supporting leg is in a supporting locking state in the stable supporting position.

Further, the first driving mechanism comprises a first lever mechanism, a first end of the first lever mechanism acts on the ISOFIX mechanism for limiting the ISOFIX mechanism to a storage position, a second end of the first lever mechanism can interact with the supporting leg, the supporting leg can exert force on the second end of the first lever mechanism when reaching a stable supporting position, and the force is transmitted to the first end of the first lever mechanism through leverage, so that the first end of the first lever mechanism releases the telescopic limitation of the ISOFIX mechanism, and the ISOFIX mechanism can outwards extend from the storage position.

Further, the rotating shaft of the first lever mechanism is arranged in the base, and a first reset mechanism is further arranged on the first lever mechanism and used for enabling the first end of the first lever mechanism to act on the ISOFIX mechanism all the time when the second end of the first lever mechanism is not acted by the force of the supporting legs.

Further, the ISOFIX mechanism comprises an ISOFIX joint and a telescopic rod directly or indirectly connected with the ISOFIX joint, and the end of the telescopic rod far away from the ISOFIX joint can be limited in a storage position under the blocking action of the first end of the first lever mechanism.

Further, the end part of the telescopic rod, which is far away from the ISOFIX joint, is provided with a clamping groove with an upward opening, and the first end of the first lever mechanism moves up and down under the leverage and is clamped into the clamping groove downwards so as to realize the telescopic restriction of the telescopic rod, and leaves the clamping groove when the telescopic rod is upward so as to release the telescopic restriction of the telescopic rod.

Further, the supporting leg comprises a supporting leg structure and a driving piece, the driving piece is connected with a first end of one side, on which the base is mounted, of the supporting leg structure, and the driving piece can apply force to a second end of the first lever mechanism when the supporting leg structure reaches a stable supporting position.

Further, the second driving structure is capable of locking the driving member when the ISOFIX mechanism is moved from the storage position in a state where the driving member is biased to the second end of the first lever mechanism.

Further, the second driving mechanism comprises a second lever mechanism and a second reset mechanism arranged on the second lever mechanism, the first end of the second lever mechanism can act on the supporting leg, the supporting leg can be in a supporting and locking state under a stable supporting position, the second end of the second lever mechanism is abutted against the ISOFIX mechanism in a storage position and can be in a contact state with the ISOFIX mechanism when the ISOFIX mechanism leaves the storage position, and the first end of the second lever mechanism is transferred to the first end of the second lever mechanism under the force of the second reset mechanism through leverage, so that the first end of the second lever mechanism locks the supporting leg.

Further, the ISOFIX mechanism comprises an ISOFIX joint and a telescopic rod connected with the ISOFIX joint directly or indirectly, and the end of the telescopic rod far away from the ISOFIX joint can abut against the second end of the second lever mechanism in the storage position, so that the second lever mechanism overcomes the force application action of the second reset mechanism to maintain the unlocked state of the supporting leg.

Further, the supporting leg comprises a supporting leg structure and a driving piece, the driving piece is connected with a first end of one side of the supporting leg structure, on which the base is installed, the driving piece can apply force to the first driving mechanism when the supporting leg structure reaches a stable supporting position so as to relieve the expansion limit of the first driving mechanism on the ISOFIX mechanism, and the first end of the second lever mechanism can lock the driving piece when the expansion link leaves a storage position.

Further, the ISOFIX mechanism also includes a telescoping rod locating piece, which is fixed in the base for providing telescoping guiding function for the telescoping rod.

Further, a rotation control rod and a stop block are arranged between the driving piece and the first end of the supporting leg structure, two ends of the rotation control rod are respectively connected with the driving piece and the first end of the supporting leg structure, and the stop block supports part of the rotation control rod and the driving piece.

Further, a folding groove is formed in the lower surface of the base, the supporting legs can rotate to enter the folding groove of the base, and a folding locking mechanism is arranged at the second end of the supporting legs, which is used for supporting the ground, and can be locked and unlocked at the folding position of the supporting legs.

Further, the folding locking mechanism comprises a concave part arranged at the second end of the supporting leg, the concave part can be matched with a protruding structure corresponding to the second end of the supporting leg on the folding groove to be clamped, and a third reset mechanism is further arranged between the concave part and the supporting leg.

Further, in the support locking state of the support leg, an internal included angle between the support leg and the base is 75 degrees.

Based on the technical scheme, the telescopic state of the ISOFIX mechanism is associated with the supporting locking state of the supporting leg through the misuse-preventing association mechanism, so that the supporting leg can be switched between the folding position and the stable supporting position only when the telescopic state of the ISOFIX mechanism is in the storage state, and the ISOFIX mechanism can be switched between the storage position and the overhanging connecting position only when the supporting leg is in the supporting locking state, thereby avoiding the installation of the ISOFIX interface when a user does not adjust the supporting leg to the use position for tightening, and avoiding the problem that the supporting seat swings or overturns greatly due to the fact that the supporting leg is not abutted against the ground when the vehicle collides or makes a sharp turn and the like, and further effectively protecting the child sitting on the child safety seat.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

FIG. 1 is an exploded view of a child safety seat support according to an embodiment of the present invention.

FIG. 2 is a schematic view of a child safety seat support base of an embodiment of the present invention with support legs in a stable support position.

FIG. 3 is a schematic view of a support leg mounting structure in an embodiment of a child safety seat support of the present invention.

FIG. 4 is a schematic view of a child safety seat support base of an embodiment of the present invention with support legs in a stowed position.

FIG. 5 is a schematic view of a child safety seat support of an embodiment of the present invention with a support leg in a retracted position and a center line cut away.

FIG. 6 is an enlarged partial schematic view of an embodiment of a child safety seat support of the present invention.

Description of the reference numerals

1. A base; 2. ISOFIX mechanism; 3. support legs; 4. a first lever mechanism; 5. a second lever mechanism; 6. a stop block; 21. ISOFIX linker; 22. a telescopic rod; 23. a telescopic rod locating piece; 24. a clamping groove; 25. a middleware; 31. a driving block; 32. a leg structure; 33. a support leg; 34. a female member; 35. unlocking the switch; 36. rotating the control lever; 37. a third reset mechanism; 41. a first reset mechanism; 42. a connecting rod; 43. a first end of the first lever mechanism 4; 44. a second end of the first lever mechanism 4; 45. a rotation shaft of the first lever mechanism 4; 51. a second reset mechanism; 52. a second end of the second lever mechanism 5; 53. a first end of the second lever mechanism 5; 54. a rotation shaft of the second lever mechanism 5; 321. a first end of the leg structure 32; 322. a second end of the leg structure 32.

Detailed Description

The technical scheme of the invention is further described in detail through the drawings and the embodiments.

Fig. 1 is an exploded view of a child safety seat according to an embodiment of the present invention. Referring to fig. 2 to 6, the child safety seat support of the present embodiment includes: a base 1, an ISOFIX mechanism 2 and a support leg 3. The base 1 is intended to be arranged in a vehicle seat and to be used for stably supporting a child safety seat. Both the ISOFIX mechanism 2 and said support legs 3 are arranged on the base 1, the ISOFIX mechanism 2 being retractable with respect to said base 1 to connect the anchor points. The ISOFIX mechanism 2 can be extended from the base 1 to connect with an ISOFIX anchor point of the vehicle and can be retracted to a stowed position, while the support leg 3 can be folded rotatably relative to the base 1 to switch between the stowed position and a stable support position.

In order to solve the problem of misuse of user installation, the embodiment also comprises a misuse prevention association mechanism. This mechanism is capable of associating the telescopic state of the ISOFIX mechanism 2 with the support locking state of the support leg 3 such that the telescopic state of the ISOFIX mechanism 2 can be switched between the retracted position and the stable support position only when the support leg 3 is in the retracted state, and the ISOFIX mechanism 2 can be switched between the retracted position and the overhanging connection position only when the support leg 3 is in the support locking state. Through preventing misuse associated mechanism can avoid the user just to carry out the installation of ISOFIX interface when not adjusting the supporting leg to tight use position to the top, just can carry out the connection between ISOFIX mechanism and the ISOFIX anchor point when only the user normally rotates the supporting leg to stable supporting position, and then realized the stable installation of children's safety seat supporting seat to when the circumstances such as vehicle bump or tight turn lead to the speed of a motor vehicle to change by a wide margin, can avoid the supporting seat to lean on ground because of the supporting leg and swing by a wide margin or the problem of toppling.

In order to achieve the above-mentioned function of the anti-misuse association mechanism, the mechanism may specifically comprise a first driving structure and a second driving structure arranged inside the base 1. Wherein the first drive structure is capable of releasing the telescopic restriction of the ISOFIX mechanism 2 when the support leg 3 is in a stable support position. The second drive mechanism is capable of locking the support leg 3 when the ISOFIX mechanism 2 is moved from the stowed position so that the support leg 3 is in a support locked condition in the stable support position.

Referring to fig. 1-4, the first drive mechanism includes a first lever mechanism 4. The first end 43 of the first lever means 4 acts on said ISOFIX means 2 for restraining said ISOFIX means 2 in the storage position, the second end 44 of said first lever means 4 being able to interact with said support leg 3, when reaching the stable support position, exerting a force on the second end 44 of said first lever means 4, being transferred by leverage to the first end 43 of said first lever means 4 so that it releases the telescopic restraint of said ISOFIX means 2, so that said ISOFIX means 2 can be extended outwards from the storage position. Referring to fig. 2, the driving block 31 coupled to the first end 321 of the support leg 3 near the base 1 may press the second end 44 of the first lever mechanism 4 downward when the support leg 3 is rotated to the stable supporting position, and the driving block 31 is separated from the second end 44 of the first lever mechanism 4 when the support leg 3 is rotated to a position other than the stable supporting position (refer to fig. 4).

The rotation shaft 45 of the first lever mechanism 4 may be disposed in the base 1, and the first reset mechanism 41 (for example, a tension spring as shown in fig. 4, a compression spring or a torsion spring disposed between the rotation shaft 45 and the first lever mechanism 4, etc. may be employed in other embodiments) is further disposed on the first lever mechanism 4. The first return means 41 are able to make the first end 43 of the first lever means 4 act on the ISOFIX means 2 at all times, without the second end 44 of the first lever means 4 being acted upon by the force of the support leg 3. The first lever mechanism 4 is preferably provided as two sets of lever structures symmetrical with respect to the center line in the left-right direction, and the two sets of lever structures are connected by a connecting rod 42.

The ISOFIX mechanism 2 may specifically comprise an ISOFIX joint 21 and a telescopic rod 22 connected to said ISOFIX joint 21. The end of the telescopic rod 22 remote from the ISOFIX joint 21 can be restrained in the storage position by the blocking action of the first end 43 of the first lever mechanism 4. The limiting means is not limited to the blocking of the first end 43 of the first lever mechanism 4, but may take other forms, such as magnetic attraction or clamping. ISOFIX joint 21 can be directly connected to telescoping rod 22 or indirectly connected through intermediate piece 25 in FIG. 1.

Referring to fig. 2, the end of the telescopic rod 22 remote from the ISOFIX joint 21 is provided with an upwardly opening slot 24, and the first end 43 of the first lever mechanism 4 moves in the up-down direction under the leverage. When the supporting leg 3 does not act on the first lever mechanism 4, the first reset mechanism 41 can enable the first end 43 of the first lever mechanism 4 to be clamped downwards into the clamping groove 24, so that the telescopic limit of the telescopic rod 22 is realized. When the support leg 3 acts on the first lever mechanism 4, the first end 43 of the first lever mechanism 4 is caused to leave the catching groove 24 in the upward direction by leverage to release the expansion and contraction restriction of the expansion and contraction rod 22. Furthermore, the ISOFIX mechanism 2 may further comprise a telescopic rod positioning tab 23, wherein the telescopic rod positioning tab 23 is fixed in the base 1 and is used for providing a telescopic guiding function for the telescopic rod 22.

Referring to fig. 3, the support leg 3 includes a leg structure 32 and a driving member 31. The driving member 31 is connected to a first end 321 of the leg structure 32 on the side where the base 1 is mounted. A foot 33 may be provided at the other end of the leg structure 32. The driving member 31 is capable of applying a force to the second end 44 of the first lever mechanism 4 when the leg structure 32 reaches a stable supporting position. The outer contour of the driving member 31 may cooperate with the second end 44 of the first lever mechanism 4 and be capable of co-rotation with the leg structure 32. And the second driving structure can lock the driving member 31 when the ISOFIX mechanism 2 is moved from the storage position when the driving member 31 is in a state of applying force to the second end 44 of the first lever mechanism 4. The support leg 3 is switchable between a collapsed condition and a support locking condition, and when in the support locking condition, the internal angle between the support leg 3 and the base 1 is preferably 75 degrees, so as to meet relevant safety standards.

Referring to fig. 4, the second driving mechanism specifically includes a second lever mechanism 5 and a second return mechanism 51 provided on the second lever mechanism 5. A rotation shaft 54 of the second lever mechanism 5 may be provided in the base 1, and the second lever mechanism 5 may be rotatable about the rotation shaft 54. The first end 53 of the second lever mechanism 5 is capable of acting on the support leg 3, enabling the support leg 3 to be in a support locked state in a stable support position. The second end 52 of the second lever means 5 abuts said ISOFIX means 2 in the stowed position and is capable of being out of contact with said ISOFIX means 2 when said ISOFIX means 2 is out of the stowed position. Is transferred to the first end 53 of the second lever mechanism 5 by leverage under the force of the second return mechanism 51 so that the first end 53 of the second lever mechanism 5 locks the support leg 3.

The driving member 31 on the support leg 3 can apply a force to the first driving mechanism when the leg structure 32 reaches the stable support position to release the expansion restriction of the ISOFIX mechanism 2 by the first driving mechanism. At this point, when the user pulls the telescopic rod 22 of the ISOFIX mechanism 2 outwards, moving it away from the storage position, the first end 53 of the second lever mechanism 5 can lock the driving member 31. Referring to fig. 2, a blocking groove or other blocking structure may be provided on the driving member 31, and the first end 53 of the second lever mechanism 5 may be inserted into the blocking structure or groove on the driving member 31 to achieve a locking effect, and the driving member is locked, i.e. the support leg 3 cannot be rotated, so as to avoid that the support leg is out of a stable support position when the ISOFIX is connected in a non-detached state, thereby causing a safety risk.

When the end of the telescopic rod 22 far away from the ISOFIX joint 21 is in the storage position, the end can abut against the second end 52 of the second lever mechanism 5 in the storage position, under the abutting action, the second lever mechanism 5 can overcome the force application action of the second reset mechanism 51 to maintain the unlocked state of the supporting leg 3, and at the moment, the supporting leg can be normally rotated to realize the disassembly of the supporting seat.

The first end 53 of the second lever mechanism 5 can lock the driving member 31 when the telescopic rod 22 is out of the storage position, so as to ensure that the support leg does not deviate from the stable supporting position.

Referring to fig. 3 and 6, a rotation control lever 36 and a stop 6 may be provided between the driver 31 and the first end 321 of the leg structure 32. Both ends of the rotation control lever 36 are connected to the driving member 31 and the first end 321 of the leg structure 32, respectively, and the stopper 6 supports a part of the rotation control lever 36 and the driving member 31. By rotating the lever 36, a relatively fixed relationship between the driver 31 and the leg structure 32 is maintained, and the driver 31 is rotatable with the leg structure 32, while restricting rotation of the driver 31 also restricts rotation of the leg structure 32. The outer contour of the stopper 6 may be designed according to the outer contour of the driving member 31 and the rotation control lever 36 to maintain the connection and supporting relationship between the base 1 and the support leg 3.

Referring to fig. 5, a folding groove 11 may be formed on the lower surface of the base 1, and the support leg 3 may be rotatably inserted into the folding groove 11 of the base 1, so as to reduce the occupied space after folding, and make the bottom profile flatter, so as to facilitate placement. And the second end 322 of the supporting leg 3 for supporting the ground can be correspondingly provided with a folding locking mechanism, by means of which the locking and unlocking can be carried out in the folded position of the supporting leg 3. Fig. 5 shows a specific structural form of a folding locking mechanism, which comprises a concave part 34 mounted at the second end 322 of the supporting leg 3, wherein the concave part 34 can be engaged with a protruding structure 12 corresponding to the second end 322 of the supporting leg 3 on the folding groove 11, and a third reset mechanism 37 is further arranged between the concave part 34 and the supporting leg 3. The third restoring mechanism 37 can push the concave part 34 outwards, so that the concave part 34 and the protruding structure 12 maintain a clamping state, and the supporting leg 3 is prevented from falling naturally. When a user wishes to remove the leg structure 32 from the receiving slot 11, the force of the third return mechanism 37 can be overcome by operating the unlocking switch 35 on the foot 33 to disengage the female member 34 from the snap-in position of the protruding structure 12. In other embodiments, the support leg 3 may also rotate directly to the lower surface of the base 1 and be in a form of downward protrusion, and other forms of folding locking mechanism may also be used to avoid the support leg 3 from falling naturally.

The specific use and principles of preventing misuse will now be described in detail with reference to the embodiments of the child safety seat support shown in fig. 1-6.

The child safety seat support of the present invention is shown in a state in fig. 4 and 5 before a user is ready to mount the child safety seat support to a seat of a vehicle. At this time, the leg structure 32 of the supporting leg 3 is folded in the folding groove 11 on the lower surface of the base 1, and is maintained to drop off unnaturally by the folding locking mechanism, while the ISOFIX mechanism 2 is also at the storage position, the driving block 31 does not act on the second end 44 of the first lever mechanism 4, so that the first end 43 of the first lever mechanism 4 is blocked at the end of the telescopic rod 22 of the ISOFIX mechanism 2 under the action of the first reset mechanism 41, so that it cannot be pulled out.

When the user is ready to install the support base, the user can only operate the support leg 3 first, so that the support leg 3 rotates downwards relative to the base 1 from the retracted position, and the ISOFIX mechanism 2 is in a limited state and cannot be pulled out. Only when the support leg 3 reaches the stable support position, the drive block 31 can exert a force on the second end 44 of the first lever mechanism 4 to overcome the action of the first return mechanism 41, leverage the first end 43 of the first lever mechanism 4 out of the blocking position for the end of the telescopic rod 22.

At this point, the user can pull out the telescoping rod 22 to connect the ISOFIX fitting 21 to the ISOFIX anchor point on the vehicle, as shown in fig. 2. When the telescopic rod 22 is pulled out, the end part of the telescopic rod 22 is also simultaneously separated from the blocking limiting position of the second end 52 of the second lever mechanism 5, so that the first end 53 of the second lever mechanism 5 is inserted into the groove on the driving block 31 under the action of the second reset mechanism 51, the movement of the driving block 31 is limited, and the stable supporting state of the supporting leg 31 is locked. In other words, as long as the telescopic link 22 is moved away from the storage position, the support leg 31 is locked in the stable support position regardless of how long it is extended outward, so as to avoid that the user does not notice whether the support leg 31 is properly installed.

When the user wishes to detach the child safety seat support from the vehicle seat, he needs to first release the connection between the ISOFIX joint 21 and the ISOFIX anchor point and retract the telescopic rod 22 inwardly to the storage position, and only when the telescopic rod reaches the storage position, the end of the telescopic rod 22 can act on the second end 52 of the second lever mechanism 5, so that the second lever mechanism 5 overcomes the action of the second reset mechanism 51, and the first end 51 can be pulled out of the groove of the driving block 31 through leverage, thereby releasing the restriction on the driving block 31. The user can then perform a swivel recovery of the support leg 3. In other words, the support leg 3 is allowed to leave the stable support position only by retracting the telescopic rod 22 to the storage position.

By means of the structure implementation of the supporting seat for the child safety seat, it can be understood that a user must follow a specific sequence under the limitation of the structure, the sequence eliminates the possibility that the supporting legs are in an unstable supporting state in the installed state of the supporting seat, eliminates the possibility that the user erroneously installs the supporting legs in an un-tightly pressed state due to inexperienced or careless conditions, further ensures that the supporting legs always press against the ground in the vehicle in the installed state of the supporting seat, and can effectively avoid the supporting seat from greatly swinging or overturning by pressing against the ground in the vehicle even if the vehicle is greatly changed due to collision, sharp turning and the like, thereby protecting the child of the child safety seat from serious injury or frightening.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical scheme of the present invention and are not limiting; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the present invention or equivalents may be substituted for part of the technical features thereof; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.

Claims

1. A child safety seat support base comprising: base (1), ISOFIX mechanism (2) and supporting leg (3), ISOFIX mechanism (2) with supporting leg (3) all set up on base (1), ISOFIX mechanism (2) can be for base (1) flexible in order to connect the anchor point, its characterized in that still includes: an anti-misuse association mechanism capable of associating a telescopic state of the ISOFIX mechanism (2) with a support lock state of the support leg (3) so that the support leg (3) can be switched between a retracted position and a stable support position only when the telescopic state of the ISOFIX mechanism (2) is in the retracted state, and the ISOFIX mechanism (2) can be switched between the retracted position and an overhanging connection position only when the support leg (3) is in the support lock state;

the misuse prevention association mechanism comprises a first driving structure which is arranged in the base (1) and can release the expansion limit of the ISOFIX mechanism (2) when the supporting legs (3) are in a stable supporting position; the first driving structure comprises a first lever mechanism (4), a first end (43) of the first lever mechanism (4) acts on the ISOFIX mechanism (2) for limiting the ISOFIX mechanism (2) to a storage position, a second end (44) of the first lever mechanism (4) can interact with the supporting leg (3), when the supporting leg (3) reaches a stable supporting position, the second end (44) of the first lever mechanism (4) is forced, and the force is transmitted to the first end (43) of the first lever mechanism (4) through leverage, so that the expansion limit on the ISOFIX mechanism (2) is released, and the ISOFIX mechanism (2) can outwards extend from the storage position.

2. Child safety seat support according to claim 1, characterized in that the rotation axis of the first lever mechanism (4) is arranged in the base (1), and that a first return mechanism (41) is further arranged on the first lever mechanism (4) for enabling the first end (43) of the first lever mechanism (4) to always act on the ISOFIX mechanism (2) when the second end (44) of the first lever mechanism (4) is not acted upon by the force of the support leg (3).

3. Child safety seat support according to claim 1, characterized in that the ISOFIX mechanism (2) comprises an ISOFIX joint (21) and a telescopic rod (22) connected directly or indirectly to the ISOFIX joint (21), the end of the telescopic rod (22) remote from the ISOFIX joint (21) being able to be restrained in a stowed position by the blocking action of the first end (43) of the first lever mechanism (4).

4. A child safety seat support according to claim 3, wherein the end of the telescopic rod (22) remote from the ISOFIX joint (21) is provided with an upwardly open catch (24), the first end (43) of the first lever mechanism (4) is moved in an up-down direction under leverage and is snapped down into the catch (24) to effect a telescopic restriction of the telescopic rod (22), and is moved out of the catch (24) when being lifted up to release the telescopic restriction of the telescopic rod (22).

5. Child safety seat support according to claim 1, wherein the support leg (3) comprises a leg structure (32) and a driving member (31), the driving member (31) being connected to a first end (321) of the leg structure (32) on the side on which the base (1) is mounted, the driving member (31) being capable of exerting a force on a second end (44) of the first lever mechanism (4) when the leg structure (32) reaches a stable support position.

6. Child safety seat support according to claim 5, wherein the drive member (31) is adapted to lock the drive member (31) when the ISOFIX mechanism (2) is moved from the stowed position in a state in which the drive member is applied to the second end (44) of the first lever mechanism (4).

7. Child safety seat support according to claim 1, characterized in that the abuse-resistant association further comprises a second driving structure provided inside the base (1) capable of locking the support leg (3) when the ISOFIX mechanism (2) is moved out of the stowed position, such that the support leg (3) is in a support locked state in the stable support position.

8. Child safety seat support according to claim 7, wherein the second drive structure comprises a second lever mechanism (5) and a second return mechanism (51) arranged on the second lever mechanism (5), the first end (53) of the second lever mechanism (5) being able to act on the support leg (3) to enable the support leg (3) to be in a support locking state in a stable support position, the second end (52) of the second lever mechanism (5) being in abutment with the ISOFIX mechanism (2) in a storage position and being able to be out of contact with the ISOFIX mechanism (2) when the ISOFIX mechanism (2) is out of the storage position, the first end (53) of the second lever mechanism (5) being transferred by leverage under the application of the second return mechanism (51) to enable the first end (53) of the second lever mechanism (5) to lock the support leg (3).

9. Child safety seat support according to claim 8, characterized in that the ISOFIX mechanism (2) comprises an ISOFIX joint (21) and a telescopic rod (22) connected directly or indirectly to the ISOFIX joint (21), the end of the telescopic rod (22) remote from the ISOFIX joint (21) being able to rest against a second end (52) of a second lever mechanism (5) in a stowed position, so that the second lever mechanism (5) maintains the unlocked state of the support leg (3) against the force exerted by the second return mechanism (51).

10. Child safety seat support according to claim 9, characterized in that the support leg (3) comprises a leg structure (32) and a driving element (31), the driving element (31) being connected to a first end (321) of the leg structure (32) on the side on which the base (1) is mounted, the driving element (31) being able to exert a force on the first driving structure when the leg structure (32) reaches a stable support position, in order to release the telescopic limit of the first driving structure on the ISOFIX mechanism (2), the first end (53) of the second lever mechanism (5) being able to lock the driving element (31) when the telescopic rod (22) leaves the storage position.

11. Child safety seat support according to claim 3 or 9, characterized in that the ISOFIX mechanism (2) further comprises a telescopic rod positioning tab (23), said telescopic rod positioning tab (23) being fixed in the base (1) for providing a telescopic guiding function for the telescopic rod (22).

12. Child safety seat support according to claim 5 or 10, characterized in that a rotation control lever (36) and a stop (6) are provided between the driving member (31) and the first end (321) of the leg structure (32), both ends of the rotation control lever (36) being connected with the driving member (31) and the first end (321) of the leg structure (32), respectively, and the stop (6) supporting part of the rotation control lever (36) and the driving member (31).

13. Child safety seat support according to claim 5 or 10, characterized in that a folding groove (11) is provided in the lower surface of the base (1), the support leg (3) being rotatable into the folding groove (11) of the base (1), a folding locking mechanism being provided at the second end (322) of the support leg (3) for supporting the ground, being lockable and unlockable in the folding position of the support leg (3).

14. Child safety seat support according to claim 13, wherein the stowing locking mechanism comprises a female part (34) mounted at the second end (322) of the support leg (3), the female part (34) being capable of being snapped in cooperation with a protruding structure (12) on the stowing groove (11) corresponding to the second end (322) of the support leg (3), a third return mechanism (37) being further provided between the female part (34) and the support leg (3).

15. Child safety seat support according to claim 1, characterized in that in the support locked state of the support leg (3), the inner angle between the support leg (3) and the base (1) is 75 degrees.