CN115056687A - Automatic-ejecting side-impact protection device - Google Patents

Abstract

The invention discloses an automatic pop-up side impact protection device, which is suitable for a child safety seat and comprises: the force bearing mechanism is pivoted at a pivoting shaft of a backrest flank of the child safety seat, and the force bearing mechanism pivots relative to the backrest flank to have a pop-up position and a folding position; the force bearing mechanism comprises a clamping structure which can move along the direction vertical to the pivoting shaft; the limiting mechanism is pivoted with the pivoting shaft; the outer edge side of the limiting mechanism is provided with a first limiting position, a second limiting position and a limiting guide surface, the first limiting position is used for limiting the clamping structure so as to keep the force bearing mechanism at the folding position, and the second limiting position is used for limiting the clamping structure so as to keep the force bearing mechanism at the ejecting position; the limiting mechanism is driven to pivot so that the clamping structure is switched between the first limiting position and the second limiting position through the limiting guide surface.

Description

Automatic-ejecting side impact protection device

Divisional application statement

The application is a divisional application of Chinese patent application with the priority date of 02/2018 and the application date of 10/01/2018, the invention name of the application is 'automatic ejection side impact protection device' and the application number of 2018111636131.

Technical Field

The invention relates to the field of infant products, in particular to an automatic ejection side impact protection device.

Background

When a vehicle is collided or suddenly decelerated, the child safety seat reduces the injury to the infant in an accident by slowing down the impact force to the infant and limiting the body movement of the infant, so that the safety of the infant in the vehicle is ensured.

The existing child safety seats only provide forward and backward protection, and lateral protection devices are not arranged on the side wings of the backrest, so that the child safety seats cannot protect the safety of infants in the event of side collision of vehicles. The lid need occupy more space in the side direction because of leaning against the flank and setting up side direction protection device, influences other person's comfort level of taking, even move back one step and set up side direction protection device into can folding up, only open when children take, frequent operation can lead to the user to neglect to open side direction protection device, leads to side direction protection device can not play due effect.

Therefore, there is a need for an auto-eject side impact protection device that is easily folded but remains open while a child is seated.

Disclosure of Invention

The invention aims to provide an automatic ejection side impact protection device which is convenient to fold and can keep an open state when a child sits.

In order to achieve the purpose, the invention discloses an automatic ejecting side impact protection device which is suitable for a child safety seat, and comprises a bearing mechanism connected to a backrest wing of the child safety seat, wherein the bearing mechanism moves relative to the backrest wing and has an ejecting position and a folding position; the automatic ejecting side impact protection device also comprises an automatic control part, and the automatic control part is stressed along with the use of the child safety seat to drive the force bearing mechanism to move relative to the backrest side wing so as to be in an ejecting position.

Compared with the prior art, the automatic ejecting side impact protection device provided by the invention has the advantages that the bearing mechanism is connected with the backrest side wing and moves relative to the backrest side wing to form an ejecting position and a folding position, the bearing mechanism constantly has an action trend of moving to the ejecting position, the automatic control part can be arranged at any position of the child safety seat, when the child safety seat is used, for example, when the child safety seat is connected to the base, a child sits on the child safety seat, or when the lifting part pivots to a certain angle, certain state change which is inevitably accompanied with the use of the child safety seat is carried out, the automatic control part is stressed due to the state change caused by the use of the child safety seat, and the bearing mechanism is driven to move relative to the backrest side wing through the stress, so that the bearing mechanism is in the ejecting position when the child safety seat is used. According to the automatic-ejecting side impact protection device provided by the invention, in the use process of the child safety seat, the force bearing mechanism can be ejected automatically to provide enough anti-collision protection for the backrest side wing, so that the problem that the child safety seat cannot provide enough side wing child safety seat due to factors such as forgetting and misoperation caused by manual operation is avoided, and the safety of the child safety seat is improved.

Preferably, the force bearing mechanism is pivoted to the backrest side wing, and the force bearing mechanism is provided with an ejecting position and a folding position relative to the backrest side wing; the automatic pop-up side impact protection device provided by the present invention is described in detail by taking an example that the force-bearing mechanism is pivoted to the back side wing, but not limited to this, and those skilled in the art can realize the switching between the pop-up position and the retracted position by adopting the actions of sliding, stretching, integral movement, etc. of the force-bearing mechanism under the initiation of the automatic pop-up side impact protection device provided by the present invention.

In one embodiment, the automatic ejection side impact protection device further comprises a limiting mechanism connected to the backrest side wings, the limiting mechanism comprises a limiting piece and a driving piece, and the limiting piece can limit the force bearing mechanism so as to keep the force bearing mechanism at a folding position; the automatic control part controls the driving part to control the driving part to drive the limiting part when the child safety seat is used, so that the limiting part releases the limiting on the force bearing mechanism and the force bearing mechanism can pivot to an ejecting position relative to the backrest side wing; the limiting part is clamped with the bearing mechanism to enable the bearing mechanism to keep a folding position, the driving part drives the limiting part to enable the limiting part to be separated from being clamped with the bearing mechanism, the bearing mechanism is pivoted to a popping position relative to the backrest flank, and the automatic control part controls the driving part to enable the limiting part to keep releasing to limit the bearing mechanism when the child safety seat is used.

Specifically, the driving piece is pivoted to the backrest side wing; the driving end of the automatic control part is connected to one side of the driving part to drive the driving part to pivot, and then the limiting part is driven to act and release limiting on the bearing mechanism.

Specifically, the limiting piece is pivoted to the backrest side wing, and a clamping hook part used for clamping the bearing mechanism is arranged on one side of the limiting piece facing the bearing mechanism; the limiting part constantly has the action trend of pivoting towards the direction of clamping the bearing mechanism, and the driving part drives the limiting part to pivot towards the direction of disengaging from the bearing mechanism under the driving of the automatic control part.

Specifically, the limiting mechanism further comprises a pushing piece, and the pushing piece is inserted into the driving piece; one end of the pushing piece extends out of the driving piece and is abutted against the limiting piece, the pushing piece extends towards one end of the limiting piece in a protruding mode to form a pushing portion, and the pushing portion drives the limiting piece to pivot towards the direction of disengaging from the force bearing mechanism under the driving of the driving piece.

Specifically, the limiting member protrudes and extends to form a pushing convex block corresponding to the pushing portion, and the pushing member drives the limiting member to pivot through the abutting action of the pushing portion and the pushing convex block.

Specifically, the force bearing mechanism is provided with a clamping structure corresponding to the clamping hook part.

Specifically, bearing mechanism includes side impact protection piece and pin joint in the block structure of side impact protection piece, and the block structure sets up in the outside that the side impact protection piece popped out the direction, and the side impact protection piece sets up and supplies the block structure to stretch into the hole of dodging that the inboard that the side impact protection piece popped out the direction was in order to block mutually with trip portion.

In another embodiment, the automatic ejecting side impact protection device further comprises a limiting mechanism pivoted at the backrest side wing, and the force bearing mechanism comprises a clamping structure capable of moving along the direction vertical to the pivoting shafts of the limiting mechanism and the backrest side wing; the arc-shaped outer edge side of the limiting mechanism is provided with a first limiting position for limiting the clamping structure so as to keep the bearing mechanism at the folding position and a second limiting position for limiting the clamping structure so as to keep the bearing mechanism at the opening position; the automatic control part drives the limiting mechanism to pivot so that the clamping structure is switched between a first limiting position and a second limiting position.

Specifically, the limiting mechanism is further provided with a limiting guide surface between the first limiting position and the second limiting position.

Specifically, the block structure has the action trend of moving towards the direction of the pivot axis of the limit mechanism and the backrest flank.

Specifically, at least part of the clamping structure is exposed out of the force bearing mechanism so as to allow an external force to operate the clamping structure to be separated from the limit of the second limit position.

In a preferred embodiment, the backrest flank is provided with an arc-shaped limiting block taking a pivot shaft of the force bearing mechanism as a circle center, the outer edge side of the arc-shaped limiting block is provided with a limiting clamping groove, the force bearing mechanism pivots relative to the pivot shaft of the backrest flank, and the force bearing mechanism comprises a clamping structure capable of moving along a direction vertical to the pivot shaft; when the force bearing mechanism pivots to the pop-up position relative to the backrest lateral wing, the clamping structure moves along the direction vertical to the pivoting shaft and is clamped into the limiting clamping groove so as to limit the force bearing mechanism to keep the pop-up position.

Specifically, the outer edge side of the arc-shaped limiting block is also provided with a limiting surface, and the limiting surface is positioned between the popping position and the folding position of the bearing mechanism; the limiting surface is used for limiting the force bearing mechanism pivoted to the pop-up position so that the force bearing mechanism keeps a half-open state until the force bearing mechanism is driven by external force to continue to pivot to the pop-up position.

In another embodiment, the position-limiting member is movably disposed at an outer side of an end of the force-bearing mechanism away from the pivot, and a position-limiting surface is correspondingly disposed at an opposite side of the position-limiting member and the force-bearing mechanism, the position-limiting member constantly has an action tendency of moving toward the force-bearing mechanism to limit the force-bearing mechanism at the folding position by the position-limiting surface, and the driving member drives the position-limiting member to move toward a direction away from the force-bearing mechanism to release the position limitation on the force-bearing mechanism.

Specifically, the limiting part is fixedly connected with a locking pin, and the driving end of the driving part pushes the locking pin to move so as to drive the limiting part to move towards the direction far away from the force bearing mechanism.

Specifically, the driving end of the driving piece is located on the other side, away from the connection part with the automatic control part, of the driving piece, and the driving end of the driving piece is provided with a locking groove corresponding to the locking pin.

Specifically, the driving member constantly has an action trend of driving the limiting member to move towards the direction far away from the force bearing mechanism.

Specifically, the limiting surface is arranged in an inclined manner along the folding direction of the force bearing mechanism towards the direction far away from the force bearing mechanism.

For the automatic control section:

preferably, the automatic control part comprises a control part and a linkage part, and when the control part is stressed, the linkage part drives the force bearing mechanism; it is understood that the linkage may be a rigid wire.

In one embodiment, the control member is disposed at a seating position of the child safety seat, and when a child sits on the child safety seat, the control member is constantly pressed and drives the force-bearing mechanism.

In another embodiment, the control member protrudes from the bottom of the child safety seat, and when the child safety seat is connected to the base, the control member is constantly pressed to drive the force-bearing mechanism.

Preferably, the control member is pivotally connected to the bottom of the child safety seat, and a driving surface is disposed on a side of the control member extending out of the bottom of the child safety seat.

In another embodiment, the control member is slidably disposed at a backrest portion of the child safety seat and connected to the linkage, and a child seated in the child safety seat constantly applies a pressing force to the control member to pull the linkage.

In yet another embodiment, the control member is slidably disposed in the seating portion of the child safety seat and connected to the linkage, and the control member is engaged with a safety belt of the child safety seat, and when the safety belt is adjusted by a force, a pressing force is applied to the control member to pull the linkage.

More specifically, the automatic control portion further includes a reset member that interferes with the control member, the reset member constantly having a tendency to overcome the pressing force of the control member to reset it.

In another embodiment, the child safety seat includes an adjustable safety belt, the automatic control portion includes a linkage, one end of the linkage is connected to the safety belt, and the safety belt pulls the linkage to move when being subjected to force adjustment, so as to drive the force-bearing mechanism.

Specifically, the safety belt comprises a crotch belt fixing piece and a waist belt fixing piece which are arranged in the seat part of the child safety seat, and the linkage piece is fixed on the crotch belt fixing piece or/and the waist belt fixing piece.

Specifically, the automatic control portion further comprises a reset piece, the reset piece is abutted to the crotch belt fixing piece or the waistband fixing piece, and the reset piece constantly has a tendency that the crotch belt fixing piece or the waistband fixing piece is reset by overcoming the tension applied to the crotch belt fixing piece or the waistband fixing piece.

In another embodiment, the child safety seat includes a handle portion having two ends pivotally connected to the child safety seat via a pivot portion, the automatic control portion includes a linkage member, and one end of the linkage member extends into the pivot portion and moves relative to the pivot portion along with the pivot of the handle portion, thereby driving the force-bearing mechanism.

Specifically, the one end that the interlock spare stretches into in the pin joint portion is provided with the end button, and the end button sets up in the handle portion and stretches into the one end outside of pin joint portion or connect in the handle portion and stretch into the one end of pin joint portion, and when the relative pin joint portion pivot of handle portion, the handle portion stretches into the one end of pin joint portion and drives the relative pin joint portion of end button and remove.

Drawings

FIG. 1 is a schematic view of a child safety seat having an automatically ejecting side impact protection device according to the present invention.

FIG. 2 is a schematic view of a child safety seat having an automatically ejecting side impact protection device according to another embodiment of the present invention.

Fig. 3 is an enlarged view of a portion B in fig. 2.

Fig. 4 is a schematic structural view of the limiting mechanism.

Fig. 5 is a sectional view taken along the line a-a in fig. 1.

Fig. 6 is a schematic view of the locking mechanism in fig. 5.

Fig. 7 is a schematic diagram of the ejecting state of the bearing mechanism in fig. 5.

Fig. 8-10 are schematic structural views of another alternative embodiment of the force bearing mechanism.

Fig. 11-13 are schematic structural views of still another alternative embodiment of the force bearing mechanism.

Fig. 14 is a schematic view of the installation of another alternative embodiment of the automatic control portion.

Fig. 15 to 16 are sectional views of the automatic control portion of fig. 14.

Fig. 17 is a schematic view of the installation of yet another alternative embodiment of the automatic control portion.

Fig. 18 is another installation diagram of the automatic control part in fig. 17.

Fig. 19 is a schematic structural view of a child safety seat having a second embodiment of the self-ejecting side impact protection device of the present invention.

FIG. 20 is a schematic view of a child safety seat having a second embodiment of the self-ejecting side impact protection device of the present invention shown at another angle.

Fig. 21 is an enlarged view of a portion C in fig. 20.

Fig. 22 is a schematic structural view of the control member.

Fig. 23 is an exploded view of a second embodiment of the self-ejecting side impact protection device of the present invention.

Fig. 24 and 25 are schematic views illustrating the internal structure of the automatic pop-up side impact protection device according to the second embodiment of the present invention in the unlocked state.

Fig. 26 is a schematic diagram showing the internal structure of the automatic ejection side impact protection device in the locked state according to the second embodiment of the present invention.

Fig. 27 is a schematic view of a folded state of an automatically ejecting side impact protection device in a child safety seat having a third embodiment of the automatically ejecting side impact protection device according to the present invention.

Fig. 28 is a diagram illustrating an ejected state intention of the automatically ejected side impact protection device in the child safety seat having the third embodiment of the automatically ejected side impact protection device according to the present invention.

Fig. 29 is an exploded view of a third embodiment of the self-ejecting side impact protection device of the present invention.

Fig. 30 is an exploded perspective view of a third embodiment of the self-ejecting side impact protection device of the present invention.

Fig. 31 is a schematic view of the internal structure of the engaging structure of the third embodiment of the automatic pop-up side impact protection device of the present invention being limited by the second limiting position.

FIG. 32 is a schematic diagram of the internal structure of the third embodiment of the auto-eject side-impact protection device of the present invention with the engaging structure disengaged from the second limit position.

Fig. 33 is a schematic view of the internal structure of the engaging structure of the third embodiment of the automatic pop-up side impact protection device of the present invention being limited by the first limit position.

Fig. 34 and 35 are schematic views showing the internal structure of an automatic control portion of a child safety seat having a third embodiment of the automatic ejection side impact protection device of the present invention.

Fig. 36 is an enlarged view of a portion D in fig. 34.

Fig. 37 is an enlarged view of a portion E in fig. 35.

Fig. 38 and 39 are schematic views illustrating the installation of an automatic control part of the automatic pop-up side impact protection device according to the fourth embodiment of the present invention.

Fig. 40 is a schematic view of the cooperation of the robot control portion of fig. 38 and 39 with a crotch strap fastener.

Fig. 41 and 42 are schematic views showing the installation of another alternative embodiment of the automatic control portion of the fifth embodiment of the automatic ejection side impact protection device.

Fig. 43 is a schematic structural view of the automatic control part in fig. 41 and 42 cooperating with the belt fixing member.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

As shown in fig. 1-7, the present invention provides an auto-eject side impact protection device 300 suitable for use in a child safety seat. A self-ejecting side impact protection device 300 is provided at the back side flap 200 of the child safety seat 100 for providing side impact protection to a child seated in the child safety seat 100 during a side impact. The automatic ejecting side impact protection device 300 comprises a force bearing mechanism 310 connected to the backrest side wing 200 of the child safety seat 100, wherein the force bearing mechanism 310 moves relative to the backrest side wing 200 and has an ejecting position and a folding position; the automatic pop-up side impact protection device 300 further includes an automatic control portion 330, and the automatic control portion 330 is forced by the child safety seat 100 to drive the force-bearing mechanism 310 to move relative to the backrest wings 200 to be in the pop-up position.

The automatic pop-up side impact protection device provided by the invention is arranged at the backrest lateral wing 200 of the child safety seat 100, and has the effect that when the child safety seat 100 is in a use state, the pop-up state can be automatically kept, so that the anti-collision protection is provided. In some preferred embodiments, the child safety seat 100 can be conveniently folded to save space when not in use. It can be understood that the term "use of the child safety seat 100" as used herein includes, but is not limited to, when the child safety seat 100 is connected to a base, when a child sits on the child safety seat 100, or a specific position to which a handle of the child safety seat 100 needs to pivot during use, and the child safety seat 100 is used, the state change necessarily accompanies a certain state change, and a driving force is generated on the automatic control portion 330 due to the state change, and the stressed automatic control portion 330 drives the force bearing mechanism 310 to move relative to the backrest side wings 200, so that the force bearing mechanism 310 is in an eject position when the child safety seat 100 is used.

A first embodiment of the automatic pop-up side impact protection device of the present invention will be described in detail with reference to fig. 1 to 7.

Illustratively, in the present embodiment, the force-bearing mechanism 310 is pivotally connected to the back-rest side wings 200, and the force-bearing mechanism 310 has an ejecting position and a retracted position relative to the back-rest side wings 200. The force-bearing mechanism 310 is pivoted to the back-rest side wings 200 for a detailed description, but not limited to this, and those skilled in the art can implement the switching between the pop-up position and the retracted position by using the actions of sliding, stretching, and moving the force-bearing mechanism as a whole under the initiation of the automatic pop-up side impact protection device provided by the present invention. Preferably, the force-bearing mechanism 310 has a constant tendency to pivot to the eject position.

As shown in fig. 3-7, the automatic pop-up side-impact protection device 300 further includes a limiting mechanism 320 connected to the back wing 200, the limiting mechanism 320 includes a limiting member 321 and a driving member 322, when the bearing mechanism 310 pivots to the folded position relative to the back wing 200, the limiting member 321 limits the bearing mechanism 310 so that the bearing mechanism 310 is kept at the folded position, and when the driving member 322 drives the limiting member 321 so that the limiting member 321 releases the limiting of the bearing mechanism 310, the bearing mechanism 310 can pivot to the pop-up position relative to the back wing 200; the automatic control portion 330 is used for controlling the driving member 322 to keep the driving member 322 driving the limiting member 321 to release the limiting state on the bearing mechanism 310 when the child safety seat 100 is in use.

As shown in fig. 1-7, the automatic ejecting side impact protection device provided by the present invention mainly comprises a force bearing mechanism 310, a limiting mechanism 320, and an automatic control portion 330. The force bearing mechanisms 310 are symmetrically pivoted to the back-rest side wings 200, the force bearing mechanisms 310 can pivot relative to the back-rest side wings 200, and when the force bearing mechanisms 310 pivot to the pop-up position relative to the back-rest side wings 200, the force bearing mechanisms 310 can provide side impact protection in the use process of the child safety seat 100; when the force-bearing mechanism 310 pivots to the retracted position relative to the back-rest side wings 200, the space can be saved. It can be understood that the force bearing mechanism 310 has a constant action tendency of pivoting to the pop-up state, and particularly, the action tendency can be realized by a torsion spring 313 arranged at the pivot joint of the force bearing mechanism 310 and the backrest side wings 200 as shown in fig. 3. The limiting mechanism 320 corresponds to the bearing mechanism 310 and is arranged in the backrest side wing 200, and the limiting mechanism 320 is used for limiting the bearing mechanism 310 pivoted to the folding state. The automatic control portion 330 is disposed at a position where the child safety seat 100 is convenient to control, and when the child safety seat 100 is used through the automatic control portion 300, the limiting mechanism 320 does not limit the force-bearing mechanism 310, so that the force-bearing mechanism 310 is in the pop-up position during the use of the child safety seat 100.

It can be understood that the automatic control portion 330 may be always stressed and the driving limiting mechanism 320 may be kept away from the limiting function of the force-bearing mechanism 310 during the use of the child safety seat 100, or may be triggered by the stress and the driving limiting mechanism 320 may be away from the limiting function of the force-bearing mechanism 310 due to the inevitable state change of the automatic control portion 330 during the use of the child safety seat 100, and at this time, the force-bearing mechanism 310 may depend on the torsion spring 313 shown in fig. 3 or other structures to enable the force-bearing mechanism 310 to have an action tendency of being constantly kept in the pop-up position. Specifically, in the present embodiment, as shown in fig. 1, the automatic control portion 330 includes a control element 331 disposed at the seating position of the child safety seat 100, and may be disposed at the seating position of the child safety seat 100, when an infant sits on the child safety seat 100, the control element 331 is driven by the weight of the infant itself, and when the child safety seat 100 is kept in use, the control element 331 is forced to be triggered and drives the driving element 322, so that the limiting mechanism 320 is separated from the limiting function on the bearing mechanism 310, and the control element 331 is constantly forced by a pressing force during the process of sitting on the child safety seat 100, so that the limiting mechanism 320 is controlled to be separated from the limiting function on the bearing mechanism 310, and the infant sitting on the child safety seat 100 is in the side impact protection, thereby improving the seating safety. Of course, the control element 331 may also be disposed at a position of the backrest, the headrest, or the like, as long as when the child safety seat 100 is used, the control element 331 is forced to be triggered, and the limiting mechanism 320 is driven to disengage from the limiting function of the force-bearing mechanism 310.

As shown in fig. 1-3, the force-bearing mechanism 310 is disposed substantially horizontally in the pop-up state, and the rear end of the force-bearing mechanism 310 close to the backrest is pivotally connected to the backrest wing 200 of the child safety seat 100, while the front end of the force-bearing mechanism 310 far from the backrest is pivotally connected to the pivotal shaft. As shown in fig. 3 and 4, a torsion spring 313 is disposed at the pivot of the bearing mechanism 310 and the back wing 200, and the torsion spring 313 makes the bearing mechanism 310 have a constant action tendency of pivoting to the pop-up state. As shown in fig. 5-7, the force-bearing mechanism 310 includes a side impact protection block 311 and a fastening structure 312 pivotally connected to the side impact protection block 311, the fastening structure 312 is disposed at an outer side of the side impact protection block 311 in the ejection direction, and the side impact protection block 311 is provided with an avoiding hole 311a for the fastening structure 312 to extend into the inner side of the side impact protection block 311 in the ejection direction so as to be limited by the limiting member 321. Specifically, in the present embodiment, as shown in fig. 5-7, the engaging structure 312 includes an engaging block 312a disposed outside the side-impact protection block 311 in the ejecting direction, and one end side of the engaging block 312a is slidably connected to the side-impact protection block 311; the side impact protection block 311 is provided with an avoidance hole 311a, a screw 312b passes through the avoidance hole 311a and is fixedly connected to the clamping block 312a, and a nut at one end of the screw 312b far away from the clamping block 312a is used for being detachably connected with the limiting mechanism 320, so as to limit the force bearing mechanism 310.

Referring to fig. 4-7, the limiting mechanism 320 includes a limiting member 321, a driving member 322, and an ejecting member 323. In the present embodiment, the limiting member 321 and the driving member 322 are respectively pivoted to different positions of the backrest side wings 200. One end of the driving member 322 is pivotally connected to the backrest wing 200, and the other end of the driving member 322 is pivotally connected to drive the limiting member 321; the driving end of the automatic control portion 330, such as the linking member 332 shown in fig. 5-7, is connected to one side of the driving member 322 and located at a position substantially in the middle of the driving member 322, so as to drive the driving member 322 to pivot relative to the back-rest wing 200. The limiting member 321 is disposed outside the free end of the driving member 322, and a main body of the limiting member 321 is circular and is pivotally connected to the backrest side wing 200 through a circular center of the limiting member 321; one side of the limiting member 321 facing the force-bearing mechanism 310 is provided with a hook portion 321a for clamping the force-bearing mechanism 310, when the force-bearing mechanism 310 rotates to the retracted position, the screw 312b is close to the hook portion 321a, and the hook portion 321a is clamped to the nut of the screw 312b to limit the force-bearing mechanism 310 in the limiting state.

Further, as shown in fig. 4-7, the pushing member 323 is inserted into the driving member 322; one end of the pushing member 323 extends out of the driving member 322 and abuts against the limiting member 321, and the pushing member 323 protrudes toward one end of the limiting member 321 to form a pushing portion 323a, and the pushing portion 323a drives the limiting member 321 to pivot in a direction away from the force-bearing mechanism 310 under the driving of the driving member 322, so that the hook portion 321a of the limiting member 321 is separated from the screw 312b of the force-bearing mechanism 310. Furthermore, the limiting member 321 is also provided with a bump corresponding to the pushing portion 323 a.

It can be understood that the limiting member 321, the driving member 322, and the pushing member 323 always have an action tendency of moving toward the direction of the clamping force-bearing mechanism 310, and only when the automatic control portion 330 drives the driving member 322, the limiting member 321, the driving member 322, and the pushing member 323 overcome their action tendency and maintain the state of releasing the force-bearing mechanism 310. The unidirectional movement tendency of the limiting member 321, the driving member 322 and the pushing member 323 can be realized by an elastic member. Specifically, torsion springs 321c and 322a may be disposed at the pivot axes of the limiting member 321 and the driving member 322 and the backrest side wings 200, respectively, as shown in fig. 4; a latch spring 323b may be disposed outside the pushing member 323 to push the pushing member 323 to move outward to push the limiting member 321, as shown in fig. 5-7.

In the automatic ejecting side impact protection device provided by the invention, the distance between the limiting mechanism 320 and the automatic control part 330 for driving the limiting mechanism 320 is relatively long. In order to set the position of the automatic control portion 330 more flexibly, the automatic control portion 330 further includes a linkage 332, and the linkage 332 may be a rigid wire. When the linkage 332 is disposed at one end of the automatic control portion 330, the force can be rapidly transmitted to the limiting mechanism 320, so as to realize linkage between the two.

The use of the child safety seat 100 having the first embodiment of the self-ejecting side impact protection device of the present invention will be described in detail with reference to fig. 1 to 7:

when no infant is seated in the child safety seat 100, the control member 331 is not subjected to an external force. At this time, the limiting member 321, the driving member 322, and the pushing member 323 keep the hook portion 321a in a state of being able to engage with the screw 312b under the action of the torsion springs 321c and 322a and the snap spring 323b, and at this time, the force bearing mechanism 310 is in the retracted position, as shown in fig. 1 to 3;

when the infant sits on the child safety seat 100, the infant drives the control member 331 by its own weight, and the control member 331 constantly receives a pressing force and drives the driving member 322, so that the limiting member 321, the driving member 322, and the pushing member 323 overcome the elastic force of the torsion springs 321c and 322a and the snap spring 323b, the limiting member 321 pivots to a state where the snap portion 321a cannot be engaged with the screw 312b, and the force bearing mechanism 310 pivots to a pop-up position relative to the backrest side wing 200 under the elastic force of the torsion spring 313;

it can be understood that, even if the force-bearing mechanism 310 in the pop-up position is driven by an external force to overcome the elastic force of the torsion spring 313 and pivot to the retracted position, the control member 331 is always in the stressed state at this time, so that the limiting member 321, the driving member 322, and the pushing member 323 are in the state of being unable to engage with the screw 312 b; however, if the control member 331 is not pressed, the limiting member 321, the driving member 322, and the pushing member 323 operate under the elastic forces of the torsion springs 321c and 322a and the snap spring 323b, so that the hook portion 321a engages with the screw 312b to make the force-bearing mechanism 310 in the retracted position.

In the embodiment, the force-bearing mechanism 310 is pivotally connected to the backrest side wing 200 and pivots relative to the backrest side wing 200 to have an ejecting position and a retracted position, the force-bearing mechanism 310 has a tendency to pivot to the ejecting position, the limiting member 321 is engaged with the force-bearing mechanism 310 to keep the force-bearing mechanism 310 at the retracted position, and the driving member 322 drives the limiting member 321 to disengage the limiting member 321 from the engaging member 310, so that the force-bearing mechanism 310 pivots relative to the backrest side wing 200 to the ejecting position. According to the automatic pop-up side impact protection device provided by the invention, when the child safety seat 100 is in use, the force bearing mechanism 310 is not limited by the limiting mechanism 320 and automatically pivots to the pop-up position, and when the child safety seat 100 is not in use, the limiting mechanism 320 is in a state of limiting the force bearing mechanism 310 under the action of the torsion springs 321c and 322a and the snap spring 323b, and when the force bearing mechanism 310 is driven by external force to pivot to the folding position, the limiting mechanism 320 limits the force bearing mechanism 310 so that the force bearing mechanism 310 can be kept at the folding position. The automatic-ejecting side impact protection device provided by the invention can be ejected automatically to provide enough side impact protection for the backrest when the child safety seat 100 is in use, namely, operation steps are saved, and a child carer is prevented from forgetting to turn the side impact protection block to an ejecting state, and the child safety seat 100 can conveniently push the bearing mechanism 310 to pivot relative to the backrest side wing 200 and is limited at a folding position by the limiting mechanism 320 in a non-use state so as to reduce the folding volume.

Fig. 8-10 show another alternative embodiment of the force-bearing mechanism 310:

as in the first embodiment of the automatic pop-up side impact protection device shown in fig. 1-7, the backrest side wing 200 is provided with an arc-shaped limit block 340 using a pivot shaft 350 of the force-bearing mechanism 310 as a center of a circle, the outer edge side of the arc-shaped limit block 340 is provided with a limit slot 341, the force-bearing mechanism 310 pivots relative to the pivot shaft 350 of the backrest side wing 200, and the force-bearing mechanism 310 includes a clamping structure 312 capable of moving in a direction perpendicular to the pivot shaft 350; when the force-bearing mechanism 310 pivots to the pop-up position relative to the backrest side wings 200, the engaging structure 312 moves in a direction perpendicular to the pivot axis 350 and is engaged in the position-limiting engaging groove 341 to limit the force-bearing mechanism 310 to maintain the pop-up position.

In this embodiment, further, the outer edge side of the arc-shaped limiting block 340 is further provided with a limiting surface 342, and the limiting surface 342 is correspondingly disposed between the pop-up position and the retracted position of the force-bearing mechanism 310; the limiting surface 342 is used for limiting the force-bearing mechanism 310 pivoted to the pop-up position so that the force-bearing mechanism 310 keeps a half-open state until the force-bearing mechanism 310 is driven by an external force to continue to pivot to the pop-up position.

Fig. 11-13 illustrate yet another alternative embodiment of the force-bearing mechanism 310:

as in the first embodiment of the automatic pop-up side impact protection device shown in fig. 1-7, the backrest side wing 200 is provided with an arc-shaped limit block 340 using a pivot shaft of the force-bearing mechanism 310 as a center of a circle, the outer edge side of the arc-shaped limit block 340 is provided with a limit slot 341, the force-bearing mechanism 310 pivots relative to the pivot shaft of the backrest side wing 200, and the force-bearing mechanism 310 includes a clamping structure 312 capable of moving in a direction perpendicular to the pivot shaft; when the force-bearing mechanism 310 pivots to the pop-up position relative to the backrest side wings 200, the engaging structure 312 moves in a direction perpendicular to the pivot axis and is engaged in the limiting groove 341 to limit the force-bearing mechanism 310 to maintain the pop-up position.

In this embodiment, a tension spring 312c is further disposed between the engaging structure 312 and the side impact protection block 311, and the tension spring 312c makes the engaging structure 312 constantly have an action tendency of moving toward the arc-shaped limit block 340 along a direction perpendicular to the pivot axis, so that when the engaging structure 312 pivots to be opposite to the limit slot 341 along with the force-bearing mechanism 310, the engaging structure 312 is driven by the tension spring 312c to be locked into the limit slot 341.

Referring now to fig. 14-16, another alternative embodiment of an automatic control portion 330 in a first embodiment of an automatic ejection side impact protection device is shown.

In the present embodiment, the automatic control portion 330 includes a control member 331, a linking member 332 and a reset member 333. The control element 331 is slidably disposed on the backrest 110 of the child safety seat 100 and connected to one end of the linking element 332, a portion of the control element 331 protrudes from the front surface of the backrest 110, the reset element 333 is abutted between the control element 331 and the backrest 110, and the reset element 333 is always inclined to allow the control element 331 to protrude from the backrest 110. Thus, when a child sits in the child safety seat 100, the back of the child abuts against the control member 331 to apply a pressing force to slide the control member 331 toward the inside of the backrest 110 (see fig. 16), thereby pulling the linkage 332, and then pulling the limiting mechanism 320 by the linkage 332 to unlock. Furthermore, in the process of sliding the control member 331 into the back rest portion 110, the reset member 333 is compressed and deformed, and when the control member 331 loses the pressing force, the reset member 333 is deformed again to drive the control member 331 to protrude out of the back rest portion 110 (see fig. 15).

It is to be understood that the automatic control portion 330 is not limited to the above arrangement, and may be disposed in other portions of the child safety seat 100, as shown in fig. 17 to 18, which is yet another alternative embodiment of the automatic control portion 330.

Referring to fig. 14, 17-18, in the present embodiment, the automatic control portion 330 also includes a control member 331, a linking member 332, and a reset member 333, which is different from the above embodiments in that: the control member 331 is slidably disposed in the seat portion 120 of the child safety seat 100 and is engaged with the five-direction belt 130 disposed on the child safety seat 100, and since the five-direction belt 130 is inevitably pulled to be adjusted when the five-direction belt 130 is used, the control member 331 is driven to move by the adjustment of the five-direction belt 130.

More specifically, the control member 331 is disposed at the front end of the seat portion 120 and above the webbing 131a of the reverse locking buckle 131, and the control member 331 is fixedly connected to one end of the pulling member 332, and the restoring member 333 abuts against the space between the control member 331 and the inner wall of the seat portion 120. In use, by pulling the reverse locking buckle 131 to move the webbing 131a connected thereto, a force can be applied to the control member 331 through the webbing 131a to slide the control member, thereby pulling the pulling member 332 to further pull the limiting mechanism 320 to release the lock. In the process, the resetting piece 333 is compressed to generate deformation, and the control piece 331 can be driven to reset when the resetting piece 333 restores the deformation.

It is to be understood that the control member 331 is not limited to the engagement with the webbing 131a of the reverse lock buckle 131 in the embodiment, and may be provided at other portions of the child safety seat 100 to engage with other portions of the five-direction seat belt 130 without affecting the implementation of the present solution.

Referring to fig. 19-26, a second embodiment of the self-ejecting side impact protection device of the present invention is shown.

In the second embodiment of the automatic ejection side impact protection device of the present invention, the same as the first embodiment, the automatic ejection side impact protection device 300 ' includes a force bearing mechanism 310 ', a limit mechanism 320 ', and an automatic control portion. The functions of the respective components and the functions to be realized are the same as those of the first embodiment, but the specific structures thereof are different. Specifically, the method comprises the following steps:

as shown in fig. 20-22, in the second embodiment of the automatic ejection side impact protection device of the present invention, the automatic control portion includes a control member 331 'disposed at the bottom of the child safety seat 100, and a linking member 332' having two ends respectively connected to the control member 331 'and the limiting mechanism 320'. The control element 331 ' protrudes from the bottom of the child safety seat 100, and when the child safety seat 100 is connected to the base 400, the control element 331 ' protruding from the bottom of the child safety seat 100 is constantly pressed by the base 400, so as to drive the driving element 322 ' through the linking element 332 ', so that the force-bearing mechanism 310 ' is automatically ejected, thereby ensuring that the infant seated in the child safety seat 100 is not injured, and improving the seating safety. Specifically, the control element 331 'is pivotally connected to the bottom of the child safety seat 100 via a pivot shaft 331 a', and a driving surface 331b 'is disposed on a side of the control element 331' extending out of the bottom of the seat 100, when the child safety seat 100 is connected to the base 400, the base 400 presses the control element 331 'to pivot relative to the child safety seat 100 via the driving surface 331 b', and further drives the driving element 322 'via the linking element 332'.

For the stop mechanism 320', as shown in fig. 23-26: the limiting member 321 ' is movably disposed at an outer side of an end of the force-bearing mechanism 310 ' away from the pivot, and the limiting member 321 ' and the force-bearing mechanism 310 ' are respectively and correspondingly provided with limiting surfaces 321a ' and 311a ' at opposite sides, the limiting member 321 ' constantly has an action tendency of moving towards the force-bearing mechanism 310 ' to limit the force-bearing mechanism 310 ' at the retracted position through the limiting surfaces 321a ' and 311a ', and the driving member 322 ' drives the limiting member 321 ' to move towards a direction away from the force-bearing mechanism 310 ' to release the limiting of the force-bearing mechanism 310 '.

Specifically, in the present embodiment, as shown in fig. 23 to fig. 26, the lower end side of the force-bearing mechanism 310 'is pivoted to the back-rest lateral wing 200, and the upper side of the force-bearing mechanism 310' can be pivoted to the pop-up position or the retracted position relative to the back-rest lateral wing 200 by taking the lower end side as the center; the limiting part 321 'is arranged at the upper side of the force bearing mechanism 310' and is positioned at the outer side of one end of the force bearing mechanism 310 'far away from the pivot joint, and the limiting mechanism 320' can move up and down relative to the force bearing mechanism 310 'so as to be close to or far away from the force bearing mechanism 310'; the opposite sides of the limiting member 321 'and the force-bearing mechanism 310' are correspondingly provided with limiting surfaces, when the limiting mechanism 320 'moves downwards to be close to the force-bearing mechanism 310', the force-bearing mechanism 310 'is limited by the limiting surfaces to keep the folded position, and when the limiting mechanism 320' moves upwards to be far away from the force-bearing mechanism 310 ', the force-bearing mechanism 310' can automatically pivot to the pop-up position after being separated from the limiting of the limiting surfaces. It will be appreciated that the stop member 321 ' should have a constant tendency to move downwardly closer to the force-bearing mechanism 310 ' to limit the tendency of the force-bearing mechanism 310 ' to assume the stowed position.

Preferably, as shown in fig. 24-26, the limiting surfaces 321a ', 311 a' are disposed in an inclined manner from a position close to the back-rest wing 200 to a position away from the back-rest wing 200, that is, the highest point of the inclined surface is close to the back-rest wing 200, and the downward pressing force of the limiting member 321 'generates a component force for limiting the pop-up of the force-bearing mechanism 310' through the inclined surface.

As shown in fig. 24-26, the driving member 322 'is pivoted to the back-rest wing 200' and located at the opposite inner side of the ejecting direction of the force-bearing mechanism 310 ', and the pivoting position of the driving member 322' and the back-rest wing 200 'is approximately located at the middle position of the driving member 322'; the end of the driving element 322 'away from the force bearing mechanism 310' is connected to the driving end of the automatic control portion 330 ', that is, one end of the linkage 332' shown in fig. 24-26, the limiting element 321 'is fixedly connected with a locking pin 321 b', the other end of the driving element 322 'near the force bearing mechanism 310' is provided with a locking groove 322b 'corresponding to the locking pin 321 b', and the driving element 322 'is driven by the linkage 332' to move the limiting element 321 'in the direction away from the force bearing mechanism 310' through the locking groove 322b 'and the locking pin 321 b'. It can be understood that the driving member 322 ' has a constant action tendency to drive the limiting member 321 ' to move toward the force bearing mechanism 310 '.

In the second embodiment of the automatic pop-up side impact protection device of the present invention, when the child safety seat 100 is mounted on the base 400, the limiting mechanism 320 'releases the force-bearing mechanism 310'. The restraining mechanism 320 ' remains engageable with the load bearing mechanism 310 ' when the child safety seat 100 ' is removed from the base 400 or is otherwise not engaged with the base 400.

Referring to fig. 27-33, a third embodiment of the automatic ejection side impact protection device of the present invention will be described in detail.

In the third embodiment of the automatic ejection side impact protection device of the present invention, the same as the first and second embodiments, the automatic ejection side impact protection device 300 "also includes a force-bearing mechanism 310", a limiting mechanism 320 "and an automatic control portion 330", and the structure of the automatic control portion 330 "is preferably the same as that of the second embodiment, and will not be described again, and the functions of other parts and the functions to be realized are the same as those of the first embodiment, but the specific structure is different. Specifically, the method comprises the following steps:

in this embodiment, the limiting mechanism 320 "is pivoted to the back-rest side wing 200, and the limiting mechanism 320" is in an arc-shaped structure with the back-rest side wing 200 as a circle center; the bearing mechanism 310 "is also pivoted to the backrest side wing 200, and the bearing mechanism 310" is pivoted to the same pivoting shaft as the limiting mechanism 320 "and the backrest side wing 200. The force bearing mechanism 310 "comprises a clamping structure 315 which can move along the direction vertical to the pivot axes of the limiting mechanism 320" and the backrest lateral wings 200 "; the arc-shaped outer edge side of the limiting mechanism 320 ' is provided with a first limiting position 324 ' for limiting the clamping structure 315 ' to keep the force bearing mechanism 310 ' at the folding position, and a second limiting position 325 ' for limiting the clamping structure 316 ' to keep the force bearing mechanism 310 ' at the opening position; the automatic control portion drives the limiting mechanism 320 "to pivot so that the engaging structure is switched between the first limiting position 324" and the second limiting position 325 ".

Preferably, the engaging structure 315 "has a constant action tendency to move toward the direction of the pivot axis of the limiting mechanism 320" and the backrest side wings 200, and can be realized by an elastic member 315a "as shown in fig. 30-33. As shown in fig. 31-33, at least a portion of the engaging structure 315 "is exposed from the force-bearing mechanism 310" so that the engaging structure 315 "can be operated by external force. Furthermore, as shown in fig. 31-33, the position-limiting guide surface 326 "is further disposed between the first limiting position 324" and the second limiting position 325 "of the limiting mechanism 320', and the first limiting position 324" is further away from the pivot axis of the limiting mechanism 320 "and the backrest wing 200 than the second limiting position 325", so that the engaging structure 315 "is easier to disengage from the first limiting position 324" and to reach the second limiting position 325 "through the limiting guide surface 326", and the engaging structure 315 "limited by the second limiting position 325" is not easy to disengage.

Referring to fig. 29 to 33, the end of the engaging structure 315 "for engaging with the first limiting bit 324" or the second limiting bit 325 "includes a straight surface 3152 and an inclined surface 3151. The first limiting position 324 "and the second limiting position 325" are arranged at intervals in the circumferential direction of the limiting mechanism 320', the first limiting position 324 "is provided with a first surface 3241 used for being abutted against the straight surface 3152, the second limiting position 325" is provided with a second surface 3251 used for being abutted against the straight surface 3152, and the limiting guide surface 326 "is connected between the outer edge of the first surface 3241 and the inner edge of the second surface 3251. The depth of the first surface 3241 is smaller than the depth of the second surface 3251, such that the first limiting position 324 "is further away from the limiting mechanism 320" and the pivot axis of the back-rest wings 200 than the second limiting position 325 ".

The engaging structure 315 ″ is driven by the elastic element 315a ″ to have a movement tendency toward the direction of the pivot axes of the limiting mechanism 320 ″ and the back-rest side wings 200, and when the force-bearing mechanism 310 ″ pivots relative to the back-rest side wings 200 until the engaging structure 315 ″ is opposite to the first limit position 324 ', the engaging structure 315 ″ is driven by the elastic element 315a ″ to move toward the direction of the pivot axes of the limiting mechanism 320 ″ and the back-rest side wings 200 and is clamped into the first limit position 324', so that the force-bearing mechanism 310 ″ is kept at the retracted position; when the automatic control part 330 "drives the limiting mechanism 320" to pivot, under the driving of the external force, along with the pivoting of the limiting mechanism 320 ", the engaging structure 315" is disengaged from the first limit position 324 "and goes to the second limit position 325" through the limit guide surface 326 ", so that the force-bearing mechanism 310" is reliably limited and is located at the pop-up position, and at this time, if part of the engaging structure 315 "of the force-bearing mechanism 310" is exposed under the driving of no external force, the engaging structure 315 "cannot be disengaged from the second limit position 325 by itself.

Referring to fig. 34-37, an alternative embodiment of the automatic control portion is shown:

in this embodiment, the force-bearing mechanism may be the force-bearing mechanism 310 of the first embodiment or the force-bearing mechanism 310 'of the second embodiment, or may be the force-bearing mechanism 310 ″ of the third embodiment, and the limiting mechanism may be the limiting mechanism 320 of the first embodiment or the limiting mechanism 320' of the second embodiment, or may be the limiting mechanism 320 ″ of the third embodiment, which corresponds to the force-bearing mechanism. Specifically, the force-bearing mechanism 310 'and the limiting mechanism 320' in the second embodiment are taken as examples. The functions of the respective components and the functions to be realized are the same as those of the first and second embodiments, and the differences are only in the structure of the automatic control portion 330' ″. Specifically, the method comprises the following steps:

referring to fig. 23-30, in the present embodiment, the child safety seat 100 is provided with pivot portions 600 at left and right sides thereof, and two ends of a U-shaped handle 500 are pivotally connected to the child safety seat 100 via the pivot portions 600. The automatic control portion 330 "' only includes a linking member 332" ', the linking member 332 "' may be a rigid wire, and one end of the linking member 332" ' extends into the pivot portion 600 and moves relative to the pivot portion 600 along with the pivot of the handle portion 500, so as to drive the force-bearing mechanism 310 '.

Further, one end of the linkage 332 "' is connected to the driving member 320 ', and the other end of the linkage 332" ' extends into the pivot 600. The linkage member 332 "'has a terminal 332 a"' at an end thereof extending into the pivot portion 600, the terminal 332a "'is disposed at an outer side of an end portion of the handle portion 500 extending into the pivot portion 600, and when the handle portion 500 pivots relative to the pivot portion 600, the end portion of the handle portion 500 extending into the pivot portion 600 abuts against the terminal 332 a"' to drive the linkage member 332 "'via the terminal 332 a"' and further drive the driving member 320 'connected to the other end of the linkage member 332 "'. It is understood that the terminal 332a '"can also be connected to the end of the handle 500 extending into the pivot portion 600, so as to drive the terminal 332 a'" during the pivoting process of the handle 500 relative to the pivot portion 600.

In the third embodiment of the automatic ejection side impact protection device, the operating part 700 and the handle part 500 are driven by external force to control whether the limiting mechanism 320 'is clamped with the force bearing mechanism 310'. It will be appreciated that the relative positions of the end knob 332a ' "and the operating member 700 may be configured such that the restraining mechanism 320 '" remains to release the attachment mechanism 310 ' when the handle portion 500 is pivoted to the middle use position relative to the seat 100, and the restraining mechanism 320 ' "remains to engage the attachment mechanism 310 ' when the handle portion 500 is pivoted to one side of the seat 100.

Referring now to fig. 14, 38-43, alternative embodiments of the automatic control portion of the automatic ejection side impact protection device of the present invention are shown. The force-bearing mechanism and the position-limiting mechanism of this embodiment may be the structures in any of the above embodiments, and will not be described again, and the structure of the automatic control portion 330 "" in this alternative embodiment will be described below by taking the automatic pop-up side impact protection device in the first embodiment as an example.

In this alternative embodiment, the automatic control portion 330 "" cooperates with the adjustable five-direction seat belt 130 provided on the child safety seat 100, and the automatic control portion 330 "" is driven by the adjustment of the five-direction seat belt 130 (see fig. 14).

As shown in fig. 38 to 43, the five-direction harness 130 provided on the child safety seat 100 generally further includes a crotch strap 132 and a waist strap 133, wherein the crotch strap 132 is connected to the seat portion 120 of the child safety seat 100 by a crotch strap fastener 132a, the waist strap 133 is connected to the seat portion 120 of the child safety seat 100 by a waist strap fastener 133a, and the crotch strap fastener 132a and the waist strap fastener 133a are both located in the seat portion 120, and when the five-direction harness 130 is used, the crotch strap 132 and the waist strap 133 are necessarily pulled directly, or the crotch strap 132 and the waist strap 133 are pulled indirectly by the webbing 131a below the reverse locking buckle 131.

In the embodiment shown in fig. 38 to 40, the automatic control part 330 "" includes a linking member 332 "" and a restoring member 333 ', one end of the linking member 332 "" is connected to the crotch strap fixing member 132a, and the restoring member 333' abuts between the crotch strap fixing member 132a and the inner wall of the seat part 120. In use, when the crotch strap 132 is pulled directly or the crotch strap 132 is pulled indirectly through the woven strap 131a below the reverse locking buckle 131, the crotch strap fixing member 132a is driven to move, so as to pull the linkage member 332 'to move, and then the linkage member 332' drives the limiting mechanism 320 to release the lock, so as to pivot the force bearing mechanism 310 to the pop-up position. In the above process, the restoring member 333' is compressed to be deformed.

In the using process, the five-direction seat belt 130 is always in the locked state, so the force-bearing mechanism 310 can always be kept in the pop-up position, and only after the five-direction seat belt 130 is unlocked, the reset piece 333' can restore the deformation to drive the crotch belt fixing piece 132a to reset, so that the force-bearing mechanism 310 can pivot to the folding position.

In the embodiment shown in fig. 41-43, the automatic control portion 330 "" also includes a linking member 332 "" and a restoring member 333 ', one end of the linking member 332 "" is connected to the belt fixing member 133a, and the restoring member 333' abuts between the belt fixing member 133a and the inner wall of the seat portion 120. In the using process, when the waistband 133 is pulled directly or the waistband 133 is pulled indirectly through the webbing 131a below the reverse locking buckle 131, the waistband fixing piece 133a is driven to move, so that the linkage piece 332 "" is pulled to move, and then the linkage piece 332 "" drives the limiting mechanism 320 to release the lock, so that the bearing mechanism 310 pivots to the pop-up position.

It is understood that the linkage 332 "" is not limited to the above arrangement, and may be connected to other portions of the five-way seat belt 130 for control.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.

Claims (10)

1. An auto-eject side impact protection device adapted for use with a child safety seat, comprising:

the force bearing mechanism is pivoted at a pivoting shaft of a backrest wing of the child safety seat, and the force bearing mechanism pivots relative to the backrest wing to have an ejecting position and a folding position; the force bearing mechanism comprises a clamping structure which can move along the direction vertical to the pivoting shaft;

the limiting mechanism is pivoted with the pivoting shaft; the outer edge side of the limiting mechanism is provided with a first limiting position, a second limiting position and a limiting guide surface between the first limiting position and the second limiting position, the first limiting position is used for limiting the clamping structure so as to keep the force bearing mechanism at the folding position, and the second limiting position is used for limiting the clamping structure so as to keep the force bearing mechanism at the ejecting position; the limiting mechanism is driven to pivot so that the clamping structure is switched between the first limiting position and the second limiting position through the limiting guide surface.

2. The auto-eject side-impact protection device of claim 1, wherein the first limit position is further from the pivot axis than the second limit position.

3. The self-ejecting side-impact protection device of claim 2,

the clamping structure has an action trend of moving towards the direction of the pivot shaft;

the end part of the clamping structure, which is used for being matched with the first limit position or the second limit position, comprises a straight surface part and an inclined surface part;

the first limiting position and the second limiting position are arranged at intervals in the circumferential direction of the limiting mechanism, the first limiting position is provided with a first surface used for being abutted against the straight surface part, the second limiting position is provided with a second surface used for being abutted against the straight surface part, and the limiting guide surface is connected between the outer edge of the first surface and the inner edge of the second surface.

4. The self-ejecting side-impact protection device of claim 3, wherein the depth of said first face is less than the depth of said second face.

5. The self-ejecting side-impact protection device of claim 3, wherein an elastic member is disposed between said snap-fit structure and said force-bearing mechanism.

6. The self-ejecting side-impact protection device as claimed in any one of claims 1 to 5, wherein at least a portion of the engaging structure is exposed out of the force-bearing mechanism for an external force to operate the engaging structure to disengage from the limit.

7. The self-ejecting side impact protection device of any one of claims 2 to 5, further comprising an automatic control portion that is forced to pivot the restraining mechanism when the child safety seat is in use.

8. The auto-eject side-impact protection device as claimed in claim 7, wherein the auto-control portion includes a control member and a linkage member, the linkage member is connected between the control member and the limit mechanism, and the control member is pressed and drives the limit mechanism to pivot by the linkage member when the child safety seat is connected to the base or when a child sits on the child safety seat.

9. The self-ejecting side-impact protection device of claim 7, wherein said child safety seat includes a crotch strap fastener for connecting a crotch strap, said automatic control portion including a linkage, said crotch strap fastener being connected to said restraint mechanism via said linkage, said crotch strap fastener moving said crotch strap fastener when pulled, said crotch strap fastener pivoting said restraint mechanism via said linkage.

10. The auto-eject side-impact protection device as claimed in claim 7, wherein the child safety seat includes a handle portion having two ends pivotally connected to the child safety seat via a pivot portion, respectively, the auto-control portion includes a linkage member, one end of the linkage member extends into the pivot portion and moves relative to the pivot portion along with the pivot of the handle portion, and the other end of the linkage member is used to drive the limiting mechanism to pivot.

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