WO2018054249A1

WO2018054249A1 - Support mount for child safety seat

Info

Publication number: WO2018054249A1
Application number: PCT/CN2017/101476
Authority: WO
Inventors: 刘修平
Original assignee: 珠海阳光儿童用品有限公司
Priority date: 2016-09-21
Filing date: 2017-09-13
Publication date: 2018-03-29
Also published as: CN107839555B; CN107839555A

Abstract

Provided is a support mount for a child safety seat, comprising a support base (2) and a support leg (1); said support base (2) is used for mounting a child safety seat; said support leg (1) is connected to the front end of the support base (2) and is used for forming a support function between the floor of a vehicle interior and the support base (2); the support leg (1) comprises a telescopic mechanism and a one-way locking mechanism; said one-way locking mechanism is arranged in the telescopic mechanism and is capable of moving between telescopic components, and is used for causing the telescopic mechanism to elongate in one direction and to be unable to retract in the opposite direction. The telescopic mechanism of the support base elongates to a suitable position, then locks automatically in the reverse direction, ensuring that if the vehicle is involved in a collision or the brakes are applied in an emergency, the support leg supports the child safety seat very well, preventing personal injury to a seated child that would be caused by the child safety seat flipping forward.

Description

Child safety seat support

Technical field

The present invention relates to the field of child safety seats, and more particularly to a child safety seat support.

Background technique

A child safety seat is a seat that effectively enhances the safety of a child by securing a child in a safety seat. In the event of a car crash or sudden deceleration, the seat can reduce the impact on the child and limit the child's body movement to reduce the damage to them. Among the currently available child safety seats, child safety seats based on the European mandatory standard ISOFIX interface are widely used.

Considering the difference in height between the vehicle seat plane and the floor in the car, the connection of the ISOFIX interface alone cannot withstand the collision or sudden deceleration of the car, so many child safety seats have been more stable for support in children. The front end of the support seat on which the seat is mounted is provided with support legs to form a reliable support with the inner floor of the vehicle, thereby improving the safety protection effect of the child seat.

On the other hand, considering that the child safety seat itself occupies a large space, usually, when the child safety seat is not required, the user often needs to disassemble it, and when the child safety seat is needed Then install again. Therefore, this further requires that the support itself can be contracted or folded. When installing an existing child seat support, the user often needs to operate in multiple steps, including placing the support seat on the plane of the vehicle seat, connecting the ISOFIX interface, and then operating the telescopic button on the support leg to extend the support leg. Release the appropriate length and then loosen the telescopic button to lock the support legs. The entire installation process is cumbersome and requires a certain amount of user experience. For inexperienced or careless users, the support legs may not be adjusted properly, they may not be well pressed against the ground, or the telescopic buttons may not be properly locked, so that the support legs are in a retractable state, which leads to A certain security risk.

Summary of the invention

The object of the present invention is to provide a child safety seat support seat, which can simplify the installation and ensure the safety seat is fixed by using the support legs and the ISOFIX mechanism at the same time, thereby eliminating the safety hazard during the installation of the user, so as to achieve good protection. effect.

To achieve the above object, the present invention provides a child safety seat support base including a support base for supporting a child safety seat, and a support leg connected to a front end of the support base. And a supporting function is formed between the inner floor of the vehicle and the supporting base, wherein the supporting leg comprises a telescopic mechanism and a one-way locking mechanism, and the one-way locking mechanism is disposed in the telescopic mechanism to be relatively telescopic Between the moving parts, the telescopic mechanism is unidirectionally elongated and cannot be reversely retracted.

Further, a unidirectional locking state release switch is further disposed on the support leg, and the one-way locking state release switch is connected to the one-way locking mechanism, and the one-way locking mechanism can be released. The one-way locking state of the telescopic mechanism.

Further, the one-way locking mechanism is a one-way ratchet locking mechanism, including: a ratchet bar and a pawl member, the one-way locking state release switch is connected to the pawl member, the one-way When the lock state release switch is in the normally closed state, the pawl member can be abutted against the ratchet bar, and the one-way lock is activated when the one-way lock state release switch is triggered by an external force. The state release switch can move the pawl member away from the position of the ratchet bar, and release the one-way locking state of the one-way locking mechanism to the telescopic mechanism.

Further, the telescopic mechanism comprises an upper telescopic structural member and a lower telescopic structural member, the upper telescopic structural member is rotatably coupled to a lower bottom surface of the support base, and one of the ratchet strip and the pawl member is disposed at the The telescopic structural member is described above, and the other is disposed on the lower telescopic structural member.

Further, the upper telescopic structural member is a hollow tubular member, and the lower telescopic structural member is sleeved in the hollow tubular member and is slidable relative to a linear direction of the upper telescopic structural member, and the ratchet strip is longitudinally disposed On the inner side of the hollow tubular member, the pawl member is disposed on the lower telescopic structural member and is rotatable relative to the lower telescopic structural member.

Further, the lower end of the lower telescopic structural member is further provided with a foot, the one-way locking state release switch is disposed on the foot, and the one-way locking state release switch passes the connecting member and the spine The jaw members are connected.

Further, the one-way locking mechanism further includes a first elastic element capable of maintaining the one-way locked state release switch in a normally closed state and released in the one-way locked state After the switch is triggered by the external force, the one-way lock state release switch can be restored to the normally closed state when the one-way lock state release switch is released.

Further, the lower telescopic structural member is a symmetrical tubular member having an I-shaped cross section, and an I-shaped groove is disposed on both sides of the symmetrical tubular member, and the ratchet strip is symmetrically disposed on the inner side of the hollow tubular member. The corresponding position of the I-shaped groove, the pawl member is rotatably mounted in the I-shaped groove by a rotating shaft.

Further, a telescopic locking mechanism is disposed between the support base and the support leg, the telescopic mechanism includes an upper telescopic structural member and a lower telescopic structural member, and the upper telescopic structural member is rotatably coupled to the support base On the lower bottom surface, in the locked state of the telescopic locking mechanism, the telescopic locking mechanism can lock the lower telescopic a structural member, so that the lower telescopic structural member and the upper telescopic structural member cannot slide relative to each other; in the unlocked state of the telescopic locking mechanism, the telescopic locking mechanism can unlock the lower telescopic structural member So that the lower telescopic structural member automatically slides downward relative to the upper telescopic structural member under the action of gravity until the supporting force position is supported.

Further, an ISOFIX connecting member is further disposed on the supporting base, and the ISOFIX connecting member forms an operative connection with the telescopic locking mechanism, so that the ISOFIX connecting member is correctly connected to the vehicle mounting interface. At this time, the telescopic locking mechanism is driven to switch from the permanent locked state to the unlocked state.

Further, a connection support member for connecting with the child safety seat and supporting the child safety seat is further disposed on the support base, and the operability is formed between the connection support member and the telescopic locking mechanism The connection is such that when the child safety seat is properly mounted on the support base and against the connection support member, the telescopic locking mechanism is driven to switch from a permanent locked state to an unlocked state.

Further, the telescopic locking mechanism includes a rotary switch and a second elastic member, the rotary switch is rotatably connected to the upper telescopic structural member, and the second elastic member is coupled to the rotary switch, and the rotary switch is at The elastic force of the second elastic member maintains the normal state as a locked state, and is released from the locked state by the elastic force of the second elastic member under the action of the external force.

Further, the support base is further provided with a U-shaped push rod and a pair of drive rods, and the push rod segments on both sides of the U-shaped push rod are provided with a plurality of card slots, and the bottom of the U-shaped push rods The push rod segment is on one side of the telescopic locking mechanism, one end of the driving rod is slidably connected with the ISOFIX connecting member, and the other end is provided with a convex structure, which can be pushed on both sides of the U-shaped push rod The card slot of the rod segment is engaged, and when the ISOFIX connector is properly connected to the vehicle mounting interface, the U-shaped push rod can be pushed toward the telescopic locking mechanism by pushing the support base to push the The telescopic locking mechanism is switched from a permanent locked state to an unlocked state.

Further, the support base is further provided with an ISOFIX expansion member, the ISOFIX expansion member is fixedly connected with the ISOFIX connector, and can be extended or retracted relative to the support base, and the ISOFIX expansion member is also a plurality of card slots are provided, and when the ISOFIX connector is not connected to the vehicle mounting interface, the protruding structure of the other end of the driving rod can be engaged with any slot of the ISOFIX telescopic member, and When the ISOFIX connecting member is correctly connected to the vehicle mounting interface, the protruding structure of the driving rod can be disengaged from the ISOFIX telescopic member by pushing the supporting base, and the push rods on both sides of the U-shaped push rod The card slot of the segment is engaged to drive the U-shaped push rod to move toward the telescopic locking mechanism.

Further, the protruding structure is a unidirectional convex structure, and a third elastic element is further disposed between the supporting base and the other end of the driving rod, when the supporting base is not subjected to thrust, One-way raised structure can The elastic force of the third elastic element is released from the card slot of the push rod segments on both sides of the U-shaped push rod.

Further, the one-way locking mechanism is a one-way wedge locking mechanism, comprising: a toothed groove and a wedge block, the wedge block having a convex tooth and a wedge surface corresponding to the toothed groove, the wedge shape a pull cord is connected to the block, and the one-way lock state release switch is connected to the drawstring. When the one-way lock state release switch is not triggered, the wedge block is downwardly facing the wedge under the action of gravity. Sliding such that the convex teeth of the wedge block are embedded in the toothed groove; when the one-way locked state release switch is triggered by an external force, the one-way locked state release switch drives the The wedge block slides upward along the wedge shape such that the protruding teeth of the wedge block are disengaged from the toothed groove, and the one-way locking mechanism is released from the one-way locking state of the telescopic mechanism.

Further, the telescopic mechanism includes an upper telescopic structural member and a lower telescopic structural member, and the upper telescopic structural member is rotatably coupled to a lower bottom surface of the support base, and an upper end of the lower telescopic structural member is provided with the wedge shape a wedge-shaped mating wedge-shaped mating surface on the block, the toothed groove is longitudinally disposed on an inner side of the upper telescopic structural member, and the wedge-shaped block is disposed on a wedge-shaped mating surface of the toothed groove and the lower telescopic structural member between.

Further, the invention further includes a guiding tube fixed on the lower telescopic structural member, and the pulling rope is taken out through the guiding tube to the outside of the telescopic mechanism, and the upper telescopic structural member is further Providing a guiding limit groove matched with the guiding tube, and the sliding guiding of the lower telescopic structural member relative to the upper telescopic structural member can be realized by the sliding of the guiding tube in the guiding limiting groove .

Further, the one-way locking mechanism includes two wedge-shaped blocks symmetrically along a longitudinal line of the lower telescopic structural member, and the two pull-up cords respectively led by the two wedge-shaped blocks are respectively guided from the guide Both ends of the tube are led out, or the drawstring is connected and taken out from either end of the guide tube.

Based on the above technical solution, the support leg of the present invention allows the telescopic mechanism to be unidirectionally extended by the one-way locking mechanism and cannot be reversely retracted, so that the user only needs to push the telescopic mechanism into the vehicle during installation. The floor direction extends or automatically extends to the interior floor of the vehicle by the weight of the support leg itself, without the user having to adjust the extension length of the telescopic mechanism of the support leg, and can automatically lock when the telescopic mechanism is extended to a suitable position. Tightly, to ensure that the vehicle can collide or emergency brakes, the support legs can form a good support for the child safety seat, avoiding the child safety seat turning forward and causing personal injury to the child, thereby ensuring the simultaneous use of the support legs and ISOFIX The mechanism fixes the safety seat, which eliminates the safety hazard during the installation of the user and achieves a good protection effect.

DRAWINGS

The drawings described herein are provided to provide a further understanding of the invention and constitute a part of the present application. The illustrative embodiments and the description thereof are intended to explain the present invention and are not intended to limit the invention. In the drawing:

1 is a schematic view showing the mounting structure of an embodiment of a child safety seat support base of the present invention.

2 is a schematic exploded view of an embodiment of a child safety seat support of the present invention.

3 is a cross-sectional view of a support leg in an embodiment of a child safety seat support of the present invention.

4 and 5 are schematic views showing the telescopic locking mechanism in the locked and unlocked positions in the embodiment of the child safety seat support of the present invention.

6 is a schematic structural view of a lower telescopic structural member in an embodiment of a child safety seat support according to the present invention.

Figure 7 is a schematic view showing the structure of a driving rod in the embodiment of the child safety seat support of the present invention.

8 and 9 are respectively a schematic view of the inside and the side of the support leg in another embodiment of the child safety seat support of the present invention.

detailed description

The technical solution of the present invention will be further described in detail below through the accompanying drawings and embodiments.

FIG. 1 is a schematic view showing the installation structure of an embodiment of a child safety seat support base of the present invention. In the present embodiment, the child safety seat support (hereinafter also referred to as a support base) includes a support base 2 and a support leg 1. The support base 2 is for mounting a child safety seat, and the support leg 1 is connected to the front end of the support base 2 (corresponding to the side close to the vehicle head in the mounted state) for between the inner floor of the vehicle and the support base 2 Form a supporting role.

In order to more conveniently explain the structure inside the support base 2, the support base 2 shown in Fig. 1 does not show a portion of the upper layer for supporting the child safety seat and being connected to the child safety seat. Referring to the support leg cross-sectional structure shown in FIG. 3, the support leg 1 includes a telescopic mechanism and a one-way lock mechanism. The telescopic mechanism is a main body structure in which the support leg 1 is extended or shortened, and the telescopic function of the telescopic mechanism can realize the folding and installation of the child safety seat support seat. The one-way locking mechanism is disposed between the members of the telescopic mechanism that are relatively telescopically movable for unidirectionally extending the telescopic mechanism without being reversely retracted.

The term "unidirectional elongation" as used herein means that when the child safety seat support is mounted on a seat in the vehicle and connected, the support leg 1 which is originally in the retracted state can be elongated toward the floor in the vehicle until the top Tight inside the car floor. The one-way elongation can make the user's installation operation more convenient, and the user does not need to adjust the length of the support leg by experience, but only needs to pull the telescopic mechanism in a single direction toward the floor of the vehicle during installation, or The weight of the support leg itself is automatically extended to the floor of the vehicle. The fact that the reverse retraction does not restrict the support leg 1 from reversing in the direction in which it is extended, that is, from the ground toward the child safety seat support. Pass on This restriction of the support legs allows the support legs of the child safety seat support to be easily installed and supported on the ground. In the event of a collision or sudden braking of the vehicle, the support legs that are restricted from retracting can ensure that they form a good supporting effect on the supporting base and reduce the personal injury to the child. In this way, by ensuring that the support legs and the ISOFIX mechanism are used simultaneously to fix the safety seat, the safety hazard during the installation of the user is eliminated, thereby achieving good protection.

As shown in FIG. 2, the one-way lock of the telescopic mechanism can be released by the one-way lock state release switch 5 further provided on the support leg 1. In FIG. 3, the one-way lock state release switch 5 is connected to the one-way lock mechanism, and the one-way lock mechanism of the one-way lock mechanism to the telescopic mechanism can be released. The one-way locking state release switch 5 can be in the form of a button or a handle, etc., and the user can conveniently realize the folding of the telescopic mechanism of the support leg 1 by operating the switch, thereby further realizing the support seat in the vehicle seat. Disassembly on.

Fig. 3 shows an example of the structure of a one-way locking mechanism which is a normally closed one-way ratchet locking mechanism 6, which includes a ratchet strip 6.2 and a pawl member 6.1, one-way The lock state release switch 5 is connected to the pawl member 6.1. When the one-way locking state release switch 5 is in the normally closed state, the pawl member 6.1 can be abutted against the ratchet bar 6.2 so that the pawl member 6.1 can effectively block the retracting direction of the ratchet bar 6.2 in the telescopic mechanism The upper movement, while the pawl member 6.1 does not obstruct the extension of the telescopic mechanism. When the one-way lock state release switch 5 is activated by an external force (for example, the user presses the one-way lock state release switch 5 with a finger or a palm), the one-way lock state release switch 5 can drive the pawl member 6.1 to leave. Abutting against the position of the ratchet strip 6.2, the one-way locking mechanism of the one-way locking mechanism is released, and the ratchet strip 6.2 is freely movable in both the extending and retracting directions of the telescopic mechanism, thereby The telescopic mechanism is free to expand and contract.

In FIG. 3, the telescopic mechanism may specifically include an upper telescopic structural member 1.1 and a lower telescopic structural member 1.2. The upper telescopic structural member 1.1 is rotatably coupled to the lower bottom surface of the support base 2, the ratchet strip 6.2 is disposed on the upper telescopic structural member 1.1, and the pawl member 6.1 is disposed on the lower telescopic structural member 1.2. In another embodiment, the ratchet strip 6.2 can also be disposed on the lower telescoping structural member 1.2, and correspondingly, the pawl member 6.1 is disposed on the upper telescoping structural member 1.1. This achieves a one-way extension and a reverse retraction lock of the lower telescoping structure member 1.2 relative to the upper telescoping structure member 1.1 by a one-way locking action between the ratchet strip 6.2 and the pawl member 6.1.

Formally, the upper telescopic structural member 1.1 may take the form of a hollow tubular member, and the lower telescopic structural member 1.2 is sleeved within the hollow tubular member, and the lower telescopic structural member 1.2 is slidable relative to the linear direction of the upper telescopic structural member 1.1. The ratchet strip 6.2 can be longitudinally disposed on the inside of the hollow tubular member, and the pawl member 6.1 is disposed on the lower telescopic structural member 1.2 and is rotatable relative to the lower telescopic structural member 1.2. When the pawl member 6.1 is rotated in a different position, the pawl member 6.1 or the ratchet strip 6.2 is unrestricted or forms a locking action on the ratchet strip 6.2. With reference to the example of the lower telescopic structural member shown in FIG. 6, the lower telescopic structural member 1.2 is preferably a symmetrical tubular member having an I-shaped cross section, and an I-shaped groove 1.7 is provided on both sides of the symmetrical tubular member, and the ratchet strip 6.2 is symmetrically disposed. The inside of the hollow tubular member is at a position corresponding to the I-shaped groove 1.7, and the pawl member 6.1 is rotatably mounted in the I-shaped groove 1.7 through the rotating shaft. The I-shaped groove provides a accommodating space for the one-way locking mechanism while controlling the overall lateral width, so that the support leg is more compact overall, and the hollow structure can also reduce the overall weight of the support leg and save material.

In order to enable the lower telescopic structural member 1.2 to form a good support with the inner floor of the vehicle, it is preferable to provide a foot 1.3 at the lower end of the lower telescopic structural member 1.2, and a one-way locking state release switch 5 for the foot 1.3, which can be passed by the user. The one-way lock state release switch 5 on the foot 1.3 is pressed to perform the one-way lock state unlocking operation, thereby achieving the folding of the support leg 1. Referring to FIG. 3, the one-way locking state release switch 5 is connected to the pawl member 6.1 through the connecting member 1.4. The connecting member 1.4 may be in the form of a hard rod or a wire rope, and the one-way locking state release switch 5 is a protrusion. When the button form is pressed by the user, the one-way lock state release switch 5 can drive the connecting member 1.4 to move downward, and this downward movement is transmitted to the upper pawl member 6.1, and the pawl member 6.1 is driven. Move to not limit the position of the ratchet strip 6.2. The movement of the connecting member 1.4 in Fig. 3 can cause the pawl member 6.1 to rotate such that the pawl of the pawl member 6.1 is upturned away from the teeth of the ratchet strip 6.2.

For the connecting piece 1.4 in the form of a hard rod, it can be connected with the ratchet member 6.1 by the cooperation of the long groove and the sliding rod, so as to prevent the connecting piece 1.4 from swinging too much and interfering with the movement of other parts. The one-way locking mechanism may include a plurality of, for example, two, and is symmetric with respect to a longitudinal center line of the lower telescopic structural member or the upper telescopic structural member, so that the telescopic mechanism obtains a more balanced motion effect and avoids one-sided eccentric wear. The resulting wear and movement are limited.

In FIG. 3, the first elastic member 1.5 may be further disposed in the foot 1.3 as a part of the one-way locking mechanism, and the first elastic member 1.5 can maintain the one-way locking state release switch 5 in the normally closed state, and After the one-way lock state release switch 5 is triggered by an external force, the one-way lock state release switch 5 can be returned to the normally closed state when the one-way lock state release switch 5 is released.

The one-way locking mechanism may employ other existing one-way locking mechanisms in addition to the one-way ratchet locking mechanism described above, for example, a one-way locking mechanism using a one-way friction plate. 8-9 also show another possible one-way locking mechanism, which is a one-way wedge locking mechanism 7, comprising: a toothed groove 7.1 and a wedge block 7.2, said wedge shape The block 7.2 has a convex tooth 7.3 and a wedge surface corresponding to the toothed groove 7.1, and the pull wire 7.4 and the drawstring 7.5 are connected to the wedge block 7.2, and the one-way lock state release switch 5 and the pull cord 7.4 are Pull cord 7.5 connection. The one-way lock state release switch 5 may be another button or a handle, or may be a pull cord 7.4. And the rope head of the drawstring 7.5.

When the one-way locked state release switch 5 is not triggered, the wedge block 7.2 slides downward along the wedge shape under the force of gravity, so that the convex teeth 7.3 of the wedge block 7.2 are embedded in the toothed groove 7.1. When the one-way lock state release switch 5 is triggered by an external force, the one-way lock state release switch 5 drives the wedge block 7.2 to slide upward along the wedge shape by the pull cords 7.4, 7.5, so that the The protruding teeth 7.3 of the wedge block 7.2 are disengaged from the toothed groove 7.1, and the one-way locking mechanism is released from the one-way locking state of the telescopic mechanism.

In this embodiment, the telescopic mechanism may specifically include an upper telescopic structural member 1.1 and a lower telescopic structural member 1.2. The upper telescopic structural member 1.1 is rotatably coupled to a lower bottom surface of the support base 2, and the lower telescopic structural member 1.2 The upper end is provided with a wedge-shaped mating surface that cooperates with a wedge-shaped surface on the wedge block 7.2. The tooth-shaped groove 7.1 is longitudinally disposed on the inner side of the upper telescopic structural member 1.1, and the wedge-shaped block 7.2 is disposed on the toothed shape. Between the groove 7.1 and the wedge-shaped mating surface of the lower telescoping structure 1.2. Referring to FIG. 8, the upper telescopic structural member 1.1 can be disposed to have a hollow inner cavity, and the lower telescopic structural member 1.2 is disposed in the hollow inner cavity and can be in the longitudinal direction of the upper telescopic structural member 1.1 with respect to the upper telescopic structural member 1.1. motion. The upper end of the lower telescopic structural member 1.2 may be provided in a trapezoidal shape to form a wedge-shaped mating surface.

Considering that the movement of the lower telescopic structural member 1.2 relative to the upper telescopic structural member 1.1 is more stable, the child safety seat support further includes a guiding tube 7.6 fixed to the lower telescopic structural member 1.2, the pulling The rope 7.4, 7.5 is led out through the guide tube 7.6 to the outside of the telescopic mechanism, and the upper telescopic structural member 1.1 is further provided with a guiding limit groove 7.7 which cooperates with the guiding tube 7.6, through the guiding The sliding of the tube 7.6 within the guiding stop groove 7.7 enables the movement guiding and extreme position definition of the lower telescopic structural member 1.2 relative to the upper telescopic structural member 1.1.

In order to make the movement of the upper and lower telescopic structural members more stable, the one-way locking mechanism may include two of the wedge-shaped blocks 7.2 symmetric along the longitudinal direction center line of the lower telescopic structural member 1.2. In order to facilitate the operation of the two wedge blocks 7.2 to perform the unlocking operation, the drawstrings 7.4, 7.5 respectively led by the two wedge blocks 7.2 can be respectively led out from both ends of the guide tube 7.6 for the user to pull at the same time. The cord 7.4 and the drawstring 7.5 are used to unlock the one-way locked state. In another embodiment, the pull cord 7.4 and the pull cord 7.5 may be first connected and then pulled out from either end of the guide tube 7.6 so that the user only needs to pull on one side to complete the unlocking.

In addition to the aforementioned one-way locking mechanism, the present invention also provides a related function and structure of the telescopic locking in another embodiment, that is, a telescopic locking mechanism 3 is provided between the support base 2 and the support leg 1. The telescopic mechanism includes an upper telescopic structural member 1.1 and a lower telescopic structural member 1.2, and the upper telescopic structural member 1.1 is rotatably coupled to the lower bottom surface of the support base 2. In the locked state of the telescopic locking mechanism 3, the telescopic locking mechanism 3 can be locked The lower telescopic structural member 1.2 is such that the lower telescopic structural member 1.2 and the upper telescopic structural member 1.1 cannot slide relative to each other. In the unlocked state of the telescopic locking mechanism 3, the telescopic locking mechanism 3 can release the locking action on the lower telescopic structural member 1.2, so that the lower telescopic structural member 1.2 is automatically opposed to the The upper telescopic structural member 1.1 slides downward until it supports the force receiving position. The lower telescopic structural member 1.2 can also protrude relative to the upper telescopic structural member 1.1 under the force of the user.

The telescopic locking mechanism facilitates the user's operation during installation. When the support base is not installed, the locking leg is restrained by the locking state of the telescopic locking mechanism to shorten the length of the support leg, which is convenient for storage and movement, and when used When the support seat is installed, the telescopic locking mechanism can be set to the unlocked state, and the lower telescopic structural member can automatically slide down to reach the supporting force position under the action of gravity, and the one-way locking mechanism has been mentioned in the foregoing. The realization function and principle, when the telescopic structural member automatically slides downward under the action of gravity, it is not limited by the one-way locking mechanism; and when the lower telescopic structural member reaches the supporting force position, it is restricted by the one-way locking mechanism. It cannot be reversely retracted, thus obtaining an effective and stable support for the floor inside the car.

An ISOFIX connector 4.1 is further disposed on the support base 2, and the ISOFIX connector 4.1 can be located at the rear end of the support base 2 (corresponding to the side close to the tail of the vehicle in the mounted state). In one embodiment, the ISOFIX connector 4.1 can An operative connection is formed with the telescoping locking mechanism 3 to drive the telescoping locking mechanism 3 from a permanent locked state to an unlocked state when the ISOFIX connector 4.1 is properly accessed to the vehicle mounting interface.

For a structural example of the telescopic locking mechanism 3, see FIG. 4 and FIG. 5, the telescopic locking mechanism 3 includes a rotary switch 3.1 and a second elastic member 3.2, and the rotary switch 3.1 is rotatably coupled to the upper telescopic structural member 1.1. The two elastic members 3.2 are connected to the rotary switch 3.1, and the rotary switch 3.1 maintains a normal state of being locked under the elastic force of the second elastic member 3.2, and overcomes the second elastic member 3.2 under the action of an external force. The elastic force acts out of the locked state. In order to facilitate the installation of the rotary switch 3.1 and the second elastic element 3.2, a support rod 3.3 can be fixedly arranged on the upper telescopic structural member 1.1, the rotary switch 3.1 is rotatably disposed on the support rod 3.3, and the second elastic switch 3.1 can be selected. The torsion spring is disposed between the strut 3.3 and the rotary switch 3.1. A structural form of the rotary switch 3.1 is shown in FIG. 4, the rotary switch is L-shaped, including two substantially opposite vertical folding arms, and the first folding arm is used for the hole 1.6 on the lower telescopic structural member 1.2. The mating fit is used to limit the falling of the lower telescopic structural member 1.2, and the second folding arm is upwardly convex, and the first folding arm can be driven away from the hole 1.6 under the pushing of other members, thereby releasing the restriction on the lower telescopic structural member 1.2. . In the present invention, the rotary switch 3.1 is not limited to the L-shaped structure, and may be other structures capable of realizing the telescopic locking and unlocking of the lower telescopic structural member 1.2 with respect to the upper telescopic structural member 1.1 by rotation.

In order to establish a connection between the access action of the ISOFIX connector 4.1 and the unlocking process of the telescopic locking mechanism, referring to FIG. 1 and FIG. 2, a U-shaped push rod 4.5 and a pair of driving rods 4.2 are further disposed on the support base 2, A plurality of card slots (including a shallow groove with a bottom bottom or a through hole with a bottom hole) are disposed on the push rod segments of the U-shaped push rod 4.5, and the bottom push rod segment of the U-shaped push rod 4.5 is One side of the telescopic locking mechanism 3.

Figure 7 shows an implementation of the drive rod 4.2. One end 4.2.1 of the driving rod 4.2 is slidably connected with the ISOFIX connecting member 4.1, and the other end is provided with a convex structure, and can be combined with any card slot of the push rod segments of the U-shaped push rod 4.5 Then, when the ISOFIX connector 4.1 is correctly connected to the vehicle mounting interface, the U-shaped push rod 4.5 can be pushed toward the telescopic locking mechanism 3 by pushing the support base 2 (for example, the top rotation switch 3.1) The second folding arm drives the first folding arm away from the hole 1.6) to push the telescopic locking mechanism 3 from the permanent locking state to the unlocked state.

Further, an ISOFIX expansion member 4.3 may be disposed on the support base 2, and the ISOFIX extension member 4.1 and the ISOFIX connection member 4.1 may be fixedly connected by a connecting member such as a pin or a bolt, and can be extended relative to the support base 2. Or retract. The ISOFIX telescoping member 4.3 is also provided with a plurality of card slots (including shallow grooves with no bottom or through holes with bottom holes).

When the ISOFIX connector 4.1 is not connected to the vehicle mounting interface, the protruding structure of the other end of the driving rod 4.2 can be engaged with any slot of the ISOFIX telescopic member 4.3, and when the ISOFIX connection is When the member 4.1 is correctly connected to the vehicle mounting interface, the protruding structure of the driving rod 4.2 can be disengaged from the ISOFIX telescopic member 4.3 by pushing the supporting base 2, and pushed on both sides of the U-shaped push rod 4.5. The card slot of the lever segment is engaged to drive the U-shaped push rod 4.5 to move toward the telescopic locking mechanism 3.

The protruding structure is a unidirectional convex structure 4.2.2, and a third elastic member 4.6 is further disposed between the supporting base 2 and the other end of the driving rod 4.2. When the supporting base 2 is not subjected to thrust, The one-way protruding structure 4.2.2 can be disengaged from the slot of the push rod segments on both sides of the U-shaped push rod 4.5 under the elastic force of the third elastic member 4.6.

In addition to the solution for unlocking the telescopic locking mechanism by accessing the ISOFIX connector, the present invention provides another implementation. That is, the support base 2 is further provided with a connection support member for connecting with the child safety seat and supporting the child safety seat, and the connection support member can form an operability with the telescopic locking mechanism 3 The connection is such that when the child safety seat is correctly mounted on the support base 2 and abuts against the connection support member, the telescopic locking mechanism 3 is driven to switch from the permanent locked state to the unlocked state.

Based on the example of the child safety seat support of the present invention shown in Figures 2-5, the installation of the example below, A general description of the use and disassembly.

In the storage state or the unused state of the support base, the lower telescopic structural member 1.2 is in a retracted state relative to the upper telescopic structural member 1.1. At this time, the length of the support leg 1 is the shortest for easy storage. The rotary switch 3.2 of the telescopic locking mechanism 3 is inserted into the hole 1.6 of the lower telescopic structural member 1.2 to prevent the lower telescopic structural member 1.2 from protruding from the upper telescopic structural member 1.1 due to the placement angle or vibration.

When the user needs to install a child safety seat or when a preliminary child safety seat mount is required, the user can place the support base on the plane of the vehicle seat and pull the ISOFIX backward relative to the support base 2. The connector 4.1 connects the ISOFIX connector 4.1 to the ISOFIX interface on the vehicle seat. After the connection is completed, the user pushes the support base 2 backwards. When one end 4.2.1 of the drive rod 4.2 abuts against the ISOFIX connector 4.1, the other end of the drive rod 4.2 compresses the third elastic element 4.6 and makes The unidirectional raised structure 4.2.2 at this end is removed from the card slot of the telescopic member 4.3 and protrudes from the front side of the telescopic member 4.3. The protruding one-way convex structure 4.2.2 can be engaged with the card slot of the push rod segments on both sides of the U-shaped push rod 4.5, and the movement of the push support base 2 is converted into a U-shaped push rod 4.5 relative to the support. The forward movement of the base 2. When the U-shaped push rod 4.5 touches the second folding arm of the rotary switch 3.2, by applying a force to the second folding arm, the elastic force of the second elastic member 3.2 is overcome, and the first folding arm is driven. Get out of the hole 1.6.

At this time, since the support base 2 of the support base is placed on the plane of the vehicle seat, the support leg is located in the space on the front side of the seat, so when the rotary switch 3.2 unlocks the restriction on the lower telescopic structural member 1.2, The telescopic structural member 1.2 will slide downward under the action of gravity, and at this time, the ratchet bar 6.2 does not restrict the ratchet assembly 6.1 in the direction in which the lower telescopic structural member 1.2 protrudes, so the lower telescopic structural member 1.2 can be directly connected to the vehicle. floor. After reaching the floor of the vehicle, the lower telescopic structural member 1.2 does not reversely retract under the unidirectional locking action of the ratchet strip 6.2 against the ratchet assembly 6.1. At this point, the support base has been installed and the child seat can be further installed.

When the user wishes to remove the support base, the user only needs to operate the one-way lock state release switch 5 on the foot 1.3 of the lower telescopic structural member 1.2 to release the restriction of the reverse retraction of the lower telescopic structural member 1.2. Therefore, the disassembly and storage of the support base are facilitated.

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to be limiting; although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that The invention is not limited to the spirit of the technical solutions of the present invention, and should be included in the scope of the technical solutions claimed in the present invention.

Claims

A child safety seat support includes a support base (2) and a support leg (1) for mounting a child safety seat, the support leg (1) being coupled to the support base a front end of (2) for forming a support between the inner floor of the vehicle and the support base (2), characterized in that the support leg (1) comprises a telescopic mechanism and a one-way locking mechanism, the single A locking mechanism is provided between the members that are relatively telescopically movable in the telescopic mechanism for extending the telescopic mechanism in one direction without being reversely retracted.
The child safety seat support according to claim 1, characterized in that a unidirectional lock state release switch (5) is further provided on the support leg (1), the one-way lock state release switch (5) The one-way locking mechanism is connected to the one-way locking mechanism, and the one-way locking mechanism (6, 7) can be released from the one-way locking state of the telescopic mechanism.
The child safety seat support according to claim 2, wherein the one-way locking mechanism is a one-way ratchet locking mechanism (6) comprising: a ratchet strip (6.2) and a pawl member ( 6.1) the one-way lock state release switch (5) is connected to the pawl member (6.1), and when the one-way lock state release switch (5) is in a normally closed state, the pawl can be made The member (6.1) abuts against the ratchet strip (6.2), and the one-way lock state release switch (5) can be driven when the one-way lock state release switch (5) is triggered by an external force. The pawl member (6.1) is moved away from the position of the ratchet strip (6.2) to release the one-way locking state of the one-way locking mechanism to the telescopic mechanism.
The child safety seat support according to claim 3, wherein the telescopic mechanism comprises an upper telescopic structural member (1.1) and a lower telescopic structural member (1.2), and the upper telescopic structural member (1.1) is rotationally coupled On the lower bottom surface of the support base (2), one of the ratchet strip (6.2) and the pawl member (6.1) is disposed on the upper telescopic structural member (1.1), and the other is disposed under the lower telescopic structural member (1.1) On the telescopic structural member (1.2).
The child safety seat support according to claim 4, wherein the upper telescopic structural member (1.1) is a hollow tubular member, and the lower telescopic structural member (1.2) is sleeved in the hollow tubular member, and Being slidable in a linear direction with respect to the upper telescopic structural member (1.1), the ratchet strip (6.2) is longitudinally disposed inside the hollow tubular member, and the pawl member (6.1) is disposed at the lower telescopic structure On the piece (1.2), and rotatable relative to the lower telescopic structural member (1.2).
The child safety seat support according to claim 4, wherein the lower end of the lower telescopic structural member (1.2) is further provided with a foot (1.3), the one-way locking state release switch (5) Disposed on the foot (1.3), the one-way lock state release switch (5) is coupled to the pawl member (6.1) via a connector (1.4).
The child safety seat support according to claim 2, wherein the one-way locking mechanism further comprises a first elastic member (1.5), the first elastic member (1.5) enabling the one-way The lock state release switch (5) is maintained in the normally closed state, and after the one-way lock state release switch (5) is triggered by the external force, the one-way lock state release switch (5) can be released. The one-way lock state release switch (5) returns to the normally closed state.
The child safety seat support according to claim 5, wherein the lower telescopic structural member (1.2) is a symmetrical tubular member having an I-shaped cross section, and an I-shaped groove is provided on both sides of the symmetrical tubular member. (1.7) The ratchet strip (6.2) is symmetrically disposed at a position inside the hollow tubular member corresponding to the I-shaped groove (1.7), and the pawl member (6.1) is rotatably mounted through the rotating shaft In the I-shaped groove (1.7).
A child safety seat support according to claim 1, wherein a telescopic locking mechanism (3) is provided between the support base (2) and the support leg (1), the telescopic mechanism comprising An upper telescopic structural member (1.1) and a lower telescopic structural member (1.2), the upper telescopic structural member (1.1) being rotatably coupled to a lower bottom surface of the support base (2) at the telescopic locking mechanism (3) In the locked state, the telescopic locking mechanism (3) can lock the lower telescopic structural member (1.2) such that the lower telescopic structural member (1.2) and the upper telescopic structural member (1.1) cannot slide relative to each other. In the unlocked state of the telescopic locking mechanism (3), the telescopic locking mechanism (3) can release the locking effect on the lower telescopic structural member (1.2), so that the lower telescopic structural member (1.2) is in gravity Under the action, it automatically slides downward relative to the upper telescopic structural member (1.1) until the supporting force position is supported.
A child safety seat support according to claim 9, wherein an ISOFIX connector (4.1) is further provided on the support base (2), the ISOFIX connector (4.1) and the telescopic lock An operative connection is formed between the mechanisms (3) to drive the telescopic locking mechanism (3) from a permanent locked state to an unlocked state when the ISOFIX connector (4.1) is properly accessed to the vehicle mounting interface .
A child safety seat support according to claim 9, wherein a support support member for connecting to the child safety seat and supporting the child safety seat is further provided on the support base (2) An operative connection between the connection support member and the telescoping locking mechanism (3) for properly mounting the child safety seat on the support base (2) and against the connection When the member is supported, the telescopic locking mechanism (3) is driven to switch from the permanent locked state to the unlocked state.
A child safety seat support according to claim 9, characterized in that said telescopic locking mechanism (3) comprises a rotary switch (3.1) and a second elastic element (3.2), said rotary switch (3.1) The telescopic structural member (1.1) is rotatably connected, the second elastic member (3.2) is connected to the rotary switch (3.1), and the elastic force of the rotary switch (3.1) at the second elastic member (3.2) The normal state is locked, And under the action of an external force, the elastic force of the second elastic member (3.2) is overcome to be released from the locked state.
The child safety seat support according to claim 10, wherein the support base (2) further comprises a U-shaped push rod (4.5) and a pair of drive rods (4.2), the U-shaped push A plurality of card slots are disposed on the pusher segments of the rods (4.5), and the bottom pusher segments of the U-shaped push rods (4.5) are on one side of the telescopic locking mechanism (3), the drive rods One end of (4.2) is slidably connected with the ISOFIX connecting piece (4.1), and the other end is provided with a convex structure, and can be combined with any card slot of the push rod section of the U-shaped push rod (4.5) Then, when the ISOFIX connector (4.1) is correctly connected to the vehicle mounting interface, the U-shaped push rod (4.5) can be pushed toward the telescopic locking mechanism (3) by pushing the support base (2). To push the telescopic locking mechanism (3) to switch from the locked state to the unlocked state.
The child safety seat support according to claim 13, characterized in that the support base (2) is further provided with an ISOFIX expansion joint (4.3), the ISOFIX expansion joint (4.3) and the ISOFIX connection piece. (4.1) fixedly connected and capable of extending or retracting relative to the support base (2), the ISOFIX telescoping member (4.3) also being provided with a plurality of card slots, in the ISOFIX connector (4.1) not When the vehicle mounting interface is accessed, the protruding structure of the other end of the driving rod (4.2) can be engaged with any slot of the ISOFIX telescopic member (4.3), and when the ISOFIX connecting member (4.1) When properly inserted into the vehicle mounting interface, the raised structure of the drive rod (4.2) can be disengaged from the ISOFIX telescoping member (4.3) by pushing the support base (2), and with the U-shaped push rod ( 4.5) The card slots of the pusher segments on both sides are engaged to drive the U-shaped push rod (4.5) to move toward the telescopic locking mechanism (3).
A child safety seat support according to claim 14, wherein said raised structure is a one-way raised structure (4.2.2), said support base (2) and said drive rod (4.2 a third elastic member (4.6) is also disposed between the other ends of the second elastic member when the support base (2) is not subjected to thrust, and the unidirectional convex structure (4.2.2) can be Under the elastic force of (4.6), the card slots of the pusher segments on both sides of the U-shaped push rod (4.5) are separated.
The child safety seat support according to claim 2, wherein the one-way locking mechanism is a one-way wedge locking mechanism (7) comprising: a toothed groove (7.1) and a wedge block (7.2) The wedge block (7.2) has a convex tooth (7.3) and a wedge surface corresponding to the toothed groove (7.1), and a drawstring (7.4, 7.5) is connected to the wedge block (7.2). a one-way lock state release switch (5) is connected to the pull cord (7.4, 7.5), and the wedge block (7.2) is in gravity when the one-way lock state release switch (5) is not triggered. Lower sliding along the wedge surface so that the convex teeth (7.3) of the wedge block (7.2) are embedded in the toothed groove (7.1); when the one-way locking state release switch (5) is triggered by an external force, One-way lock state release switch (5) Passing the drawstring (7.4, 7.5) to drive the wedge block (7.2) to slide upward along the wedge face such that the convex teeth (7.3) of the wedge block (7.2) are disengaged from the toothed groove (7.1), releasing The one-way locking mechanism has a one-way locked state to the telescopic mechanism.
The child safety seat support according to claim 16, wherein the telescopic mechanism comprises an upper telescopic structural member (1.1) and a lower telescopic structural member (1.2), and the upper telescopic structural member (1.1) is rotationally coupled On the lower bottom surface of the support base (2), the upper end of the lower telescopic structural member (1.2) is provided with a wedge-shaped mating surface that cooperates with a wedge-shaped surface on the wedge-shaped block (7.2), the tooth-shaped groove ( 7.1) longitudinally disposed on the inner side of the upper telescopic structural member (1.1), the wedge block (7.2) being disposed between the toothed groove (7.1) and the wedge-shaped mating surface of the lower telescopic structural member (1.2) .
A child safety seat support according to claim 17, further comprising a guide tube (7.6) fixed to said lower telescopic structural member (1.2), said drawstring (7.4, 7.5) is led out to the outside of the telescopic mechanism through the guiding tube (7.6), and a guiding limit corresponding to the guiding tube (7.6) is further disposed on the upper telescopic structural member (1.1) a groove (7.7), the sliding guide of the lower telescopic structural member (1.2) relative to the upper telescopic structural member (1.1) can be realized by sliding of the guiding tube (7.6) in the guiding limiting groove (7.7) The limit position is limited.
A child safety seat support according to claim 18, wherein said one-way locking mechanism comprises two said wedge-shaped blocks that are symmetrical along a longitudinal centerline of said lower telescopic structural member (1.2) ( 7.2), the drawstrings (7.4, 7.5) respectively led out by the two wedge-shaped blocks (7.2) are respectively led out from both ends of the guide pipe (7.6), or the drawstrings (7.4, 7.5) are connected It is taken out from either end of the guide tube (7.6).