CN108313110B - Folding mechanism and infant carrier - Google Patents

Abstract

The invention discloses a retracting mechanism, which is suitable for a child carrier. The child carrier includes a driver, a front foot, a rear foot and a bottom tube. The front foot and the driver are pivotally connected and locked by a locking joint; the rear foot is pivotally connected to the driver The two ends of the bottom tube are pivotally connected to the front foot and the rear foot respectively; the retracting mechanism includes a retracting actuating piece, a connecting piece and a safety locking device, and the retracting actuating piece is arranged on the bottom tube; the connecting piece is connected to the retracting actuating piece and the locking joint; the safety locking device is arranged on the bottom tube, after the safety locking device is released, the retracting actuator is operated to drive the locking joint to release the locking through the connecting piece, so that the rider, the front foot and the rear foot are mutually retracted. The folding mechanism of the present invention has the advantages of convenient and quick folding, and makes the infant carrier safer to use. In addition, the present invention also discloses a child carrier.

Description

Collapsible Mechanisms and Infant Vehicles

technical field

The invention relates to a vehicle for infants, in particular to a vehicle for infants that can be folded easily and quickly and is safe to use.

Background technique

In the design of the frame structure of the stroller, in order to meet the practical needs of consumers and the convenience of carrying, the stroller is generally designed to be collapsible, so that it can be opened into a stroller when in use. When not in use, it can be folded into a smaller volume for easy collection or portability.

When folding a general stroller, the front and rear legs and the driver are folded. Therefore, joint mechanisms need to be provided between the front and rear legs and the driver respectively, so that the front, rear legs and the driver can be pivotally connected to each other; however, currently Most of the joint mechanisms of some children's vehicles are equipped with locking mechanisms, so a number of joint mechanisms need to be set in a children's vehicle. Therefore, during the folding process, both hands are required to operate and multiple operation actions or steps are required, which is inconvenient to fold. , it is troublesome to use; and the existing stroller has no safety device to further lock the joint mechanism or frame, which is prone to misoperation during use, resulting in accidental folding accidents, and the safety is prominently insufficient, and it is increasingly unable to meet the needs of use.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a folding mechanism that is convenient and quick to fold and makes the infant carrier safer to use.

Another object of the present invention is to provide a child carrier that is convenient to fold, and safe to use.

In order to achieve the above purpose, the retracting mechanism provided by the present invention is suitable for use on a child carrier. The child carrier includes a driver, a front foot, a rear foot and a bottom tube. The front foot and the driver are pivotally connected and locked by a locking joint; the rear foot is pivotally connected on the rider; the two ends of the bottom tube are pivotally connected to the front foot and the rear foot respectively; the retracting mechanism includes a retracting actuating part, a connecting part and a safety locking device, and the retracting actuating part is arranged on the bottom tube; the connecting part is connected to the retracting The safety locking device is arranged on the bottom tube. After the safety locking device is released, the retracting actuator is operated to drive the locking joint to release through the connecting piece, so that the rider, the front foot and the rear foot are mutually retracted.

Compared with the prior art, in the present invention, the retractable actuator is provided on the bottom tube, and the retractable actuator is connected with the locking joint through the connecting piece, so that the locking joint can be released by driving the retractable actuator. , to achieve the purpose of quickly folding the driver, the front foot and the rear foot, and the folding is convenient and quick; a safety locking device is also provided, and the driver, the front foot and the rear foot can be locked or released twice by using the safety locking device, thereby further improving the folding mechanism. Safety in use; enables the entire toddler carrier to fold quickly and be used more safely.

Preferably, the safety locking device includes a bayonet, which is movably connected to the bottom tube to lock or release the retractable actuating member.

Specifically, the safety locking device further includes an operation button, which is pivotally connected to the bottom tube and connected to the bayonet. Providing an operation button can make it easier for the user to operate the bayonet and improve the convenience of use.

Specifically, the safety locking device further includes an elastic restoring member, and the elastic restoring member provides an elastic force for connecting the bayonet to the retracting actuating member. The elastic reset piece can make the bayonet automatically lock the bottom tube and the retractable actuating member, so as to ensure that the retractable actuating member is in a locked state and avoid accidental unlocking.

Specifically, the retractable actuating member is pivotally connected to the bottom tube.

More specifically, one end of the retractable actuating member is connected to the connecting member, and the other end is provided with an engaging hole, and the latch can be selectively inserted into the engaging hole.

More specifically, the safety locking device further includes a button fixing seat, the button fixing seat is fixed on the bottom pipe, and the operation button is arranged on the button fixing seat.

More specifically, the button fixing seat is provided with a positioning groove for accommodating the end of the retractable actuating member.

More specifically, the edge of the positioning groove close to the opening and the end of the retractable actuator are provided with guide slopes.

Preferably, the safety locking device includes a bayonet, the bayonet is movably connected to the bottom tube to achieve locking or unlocking between the bottom tube and the rear foot.

Specifically, the safety locking device further includes a pull rod, the pull rod is provided with an inclined groove, and the detent is slidably arranged in the inclined groove through a shaft pin. By arranging a pull rod and having an inclined groove on the pull rod, the inclined groove can drive the bayonet to move by pulling the pull rod, so that the bayonet can lock or release the bottom tube and the rear foot.

More specifically, the safety locking device further includes an operating slider, which is slidably disposed on the rear foot and connected with the pull rod. Setting the operation slider can make it easier for the user to operate the bayonet and improve the convenience of use.

More specifically, the safety locking device further includes a fixing block, the fixing block is fixed on the rear foot, the fixing block has an elongated hole for accommodating and limiting the shaft pin, and a through hole for accommodating the bayonet.

More specifically, the safety locking device further includes an elastic restoring member, and the elastic restoring member provides an elastic force for the pull rod to push the bayonet to be connected to the bottom tube and the rear foot. The provision of the elastic reset piece can make the bayonet automatically lock the bottom tube and the rear foot, so as to ensure that the bottom tube and the rear foot are in a locked state and avoid accidental folding.

Specifically, the bottom tube is provided with a first locking hole, and when the infant carrier is unfolded, the locking pin is engaged with the first locking hole. The provision of the first engagement can enable the detent to be inserted into the infant carrier when the infant carrier is deployed, so as to realize the deployment and locking of the infant carrier.

More specifically, the bottom tube is provided with a second locking hole, and when the infant carrier is folded, the locking pin is engaged with the second locking hole. The second locking hole is arranged to be engaged with the locking pin, so that the infant carrier can also be in a locked state when it is folded.

More specifically, the bottom tube has a seat body, and the first clamping hole and the second clamping hole are opened on the seat body.

Preferably, the collapsing mechanism further includes an operating webbing, and the operating webbing is connected to the retracting actuating member. The operating webbing is provided to connect the two retractable actuating elements arranged on both sides of the infant carrier, so that the two retractable actuating elements on both sides of the infant carrier can be operated simultaneously with only one operation with one hand , improve the convenience of use, and make folding fast and convenient.

Preferably, the connector is a steel wire.

Preferably, the locking joint includes an upper joint, a lower joint, a driving part and a clamping part, the upper joint is pivotally connected with the lower joint, the upper joint is fixed with the driver, and the lower joint is fixed with the front foot; The upper joint and the lower joint are coaxially arranged, the engaging piece is simultaneously engaged with the upper joint and the lower joint, and the connecting piece is connected to the driving piece, so that the driving piece drives the engaging piece away from any one of the upper joint and the lower joint, so as to realize Release the lock.

Specifically, one side of the driving member surrounds the central axis and extends axially with several driving blocks, and one side of the lower joint extends corresponding to the driving block with a conflicting block.

Specifically, the engaging member is a gear, and the upper joint and the lower joint are provided with engaging teeth matched with the gear.

Specifically, the locking joint further includes a compression spring, and the compression spring provides an elastic force that enables the engaging member to engage with the upper joint and the lower joint at the same time.

Preferably, the retracting mechanism includes a first torsion spring, and the first torsion spring is disposed between the bottom tube and the retracting actuating member.

A child carrier includes a driver, a front foot, a rear foot, a bottom tube and a retracting mechanism. The front foot and the driver are pivotally connected and locked through a locking joint; the rear foot is pivotally connected to the driver; the two ends of the bottom tube are pivoted respectively connected to the front foot and the rear foot; the retracting mechanism includes a retracting actuating piece, a connecting piece and a safety locking device, the retracting actuating piece is arranged on the bottom tube; the connecting piece is connected to the retracting actuating piece and the locking joint; the safety locking device is provided On the bottom tube, after the safety locking device is released, the retracting actuating member is operated to drive the locking joint to release the locking through the connecting member, so that the rider, the front foot and the rear foot are mutually retracted.

Description of drawings

FIG. 1 is a perspective view of the infant carrier according to the first embodiment of the present invention when it is unfolded.

FIG. 2 is a side view of the infant carrier according to the first embodiment of the present invention when it is unfolded.

FIG. 3 is an enlarged view of part A in FIG. 1 .

4 is an exploded view of the safety locking device of the infant carrier according to the first embodiment of the present invention.

FIG. 5 is a sectional view of the locked state of the safety locking device according to the first embodiment of the present invention.

FIG. 6 is a cross-sectional view of the safety locking device according to the first embodiment of the present invention in a released state.

7 is another cross-sectional view of the safety locking device according to the first embodiment of the present invention.

8 is an exploded view of the locking joint of the infant carrier according to the first embodiment of the present invention.

FIG. 9 is a structural diagram of the lower joint of the infant carrier according to the first embodiment of the present invention.

FIG. 10 is a state diagram of the infant carrier according to the first embodiment of the present invention when it is half-folded.

FIG. 11 is a state diagram of the infant carrier according to the first embodiment of the present invention after being folded.

12 is a perspective view of the infant carrier according to the second embodiment of the present invention when it is unfolded.

13 is an exploded view of the safety locking device of the infant carrier according to the second embodiment of the present invention.

14 is a structural diagram of a pull rod and a fixing seat of the safety locking device according to the second embodiment of the present invention.

15 is a cross-sectional view of the safety locking device of the infant carrier according to the second embodiment of the present invention.

Detailed ways

In order to describe in detail the technical content, structural features, and achieved effects of the present invention, detailed descriptions are given below with reference to the embodiments and the accompanying drawings.

As shown in FIGS. 1 to 4 , the infant carrier 100 according to the first embodiment of the present invention includes a driver 1 , a front foot 2 , a rear foot 3 , a bottom tube 4 and a folding mechanism 5 . The front foot 2 and the driver 1 pass through a The locking joint 6 is pivotally connected, and the locking joint 6 locks the front foot 2 and the driver 1; the rear foot 3 is pivotally connected to the driver 1; the two ends of the bottom tube 4 are pivotally connected to the front foot 2 and the rear foot 3 respectively; the infant carrier 100 also includes a second The torsion spring 7 and the second torsion spring 7 are arranged between the bottom tube 4 and the rear leg 3 to assist in folding the bottom tube 4 and the rear leg 3 . The retractable mechanism 5 includes a retractable actuating member 51 , a connecting member 52 and a safety locking device 53 . The retracting actuating member 51 and the connecting member 52 are respectively disposed on both sides of the infant carrier 100 ; and the safety locking device only needs to be provided On either side, of course, it can also be arranged on both sides; the retractable actuating member 51 is pivotally connected to the bottom tube 4; the connecting member 52 is connected to the retracting actuating member 51 and the locking joint 6; the connecting member 52 is a steel wire; safety locking The device 53 is arranged on the bottom tube 4 , and the safety locking device 53 locks or releases the retracting actuating member 51 ; after the safety locking device 53 releases the retracting actuating member 51 , the retracting actuating member 51 is operated to pass the connecting member 52 . The locking joint 6 is driven to release the lock, so that the rider 1, the front foot 2 and the rear foot 3 are mutually folded.

Please refer to FIGS. 4 to 7 , the safety locking device 53 includes a bayonet 531 , an operation button 532 , an elastic restoring member 533 , a button fixing base 534 and an actuating member fixing base 535 ; the bayonet 531 is movably inserted into the The bottom tube 4 is selectively engaged with the retractable actuating member 51 to lock or release the retractable actuating member 51 . Specifically, the button fixing seat 534 is fixed to the bottom tube 4 ; the middle part of the operation button 532 is pivotally connected to the button fixing seat 534 , and one end of the operation button 532 is connected to the detent 531 . Providing the operation button 532 can make it easier for the user to operate the detent 531 and improve the convenience of use. The elastic restoring member 533 is disposed between the other end of the operation button 532 and the button fixing seat 534, and provides an elastic force for connecting the detent 531 to the bottom tube 4 and closing the actuating member 51; the elastic restoring member 533 can make the detent 531 531 automatically locks the bottom tube 4 and the retractable actuating member 51 to ensure that the retracting actuating member 51 is in a locked state to avoid accidental unlocking; in this embodiment, the elastic reset member 533 adopts a compression spring. The retractable actuating member 51 is pivotally connected to the actuating member fixing base 535 , and the actuating member fixing base 535 is fixed to the bottom tube 4 . One end of the retractable actuating member 51 is connected to the connecting member 52 , and the other end is provided with an engaging hole 51 a , and the locking pin 531 can be selectively inserted into the engaging hole 51 a . The button fixing base 534 is provided with a positioning groove 534 a for accommodating the end of the retractable actuator 51 . When the retractable actuating member 51 is located in the positioning groove 534a, the engaging hole 51a corresponds to and is coaxial with the hole of the bottom tube 4, so that the locking pin 531 can be inserted into the two holes at the same time. The edge of the positioning slot 534a near the opening and the end of the retractable actuating member 51 are provided with guide slopes 534b and 51b to facilitate the rotation of the retractable actuating member 51 into the positioning slot 534a. In addition, the retracting mechanism 5 includes a first torsion spring 55 , and the first torsion spring 55 is disposed between the bottom tube 4 and the retracting actuating member 51 . The first torsion spring 55 can provide an elastic force to automatically rotate the retractable actuating member 51 into the positioning groove 534a.

8 and 9, the locking joint 6 includes an upper joint 61, a lower joint 62, a driving member 63, an engaging member 64 and a compression spring 65. The upper joint 61 is pivotally connected to the lower joint 62, and the upper The joint 61 is fixed with the rider 1, and the lower joint 62 is fixed with the front foot 2; the upper joint 61 and the lower joint 62 have a circular pivot part, and the pivot part of the upper joint 61 and the lower joint 62 is pivoted to form an inner cavity; the driving part 63 and the engaging part 64 are built into the inner cavity, so that the driving part 63 and the engaging part 64 are arranged coaxially with the pivot part of the upper joint 61 and the pivot part of the lower joint 62; when locked, the engaging part 64 is engaged with the upper joint 61 and the lower joint 62 at the same time. The connecting member 52 is connected to the driving member 63 , so that the driving member 63 drives the engaging member 64 to disengage from any one of the upper joint 61 and the lower joint 62 , so as to release the lock. Specifically, a number of driving blocks 631 extend axially around the central axis on one side of the driving member 63 , and a counteracting block 621 extends from one side of the lower joint 62 corresponding to the driving block 631 . The driving slopes 631a, 621a. When the driving block 631 is pulled by the connecting member 52, the driving block 631 rotates to move itself in the direction of the pivoting center axis by driving the inclined surfaces 631a, 621a, thereby pushing the engaging member 64, so that the engaging member 64 is disengaged from the upper joint Any one of 61 and the lower joint 62; the engaging member 64 is a gear, and the upper joint 61 and the lower joint 62 are provided with engaging teeth that cooperate with the gears, when the engaging member 64 is separated from any one of the upper joint 61 and the lower joint 62 The upper joint 61 and the lower joint 62 are unlocked when the engaging teeth of the other person are engaged. The compression spring 65 is arranged between the engaging member 64 and the upper joint 61, and provides an elastic force that enables the engaging member 64 to engage with the upper joint 61 and the lower joint 62 at the same time, so as to ensure that the upper joint 61 and the lower joint 62 remain automatic Locked state to prevent accidental occurrence.

Referring again to FIG. 1 , the folding mechanism 5 further includes an operating webbing 54 , and the operating webbing 54 is connected to the retracting actuating member 51 . The operating webbing 54 is provided to connect the two retractable actuating members 51 disposed on both sides of the infant carrier 100, so that the two retractable actuators 51 on both sides of the infant carrier 100 can be simultaneously operated with one hand. The moving part 51 is operated, which improves the convenience of use and makes the folding quick and convenient.

1, 10 and 11, the following describes the folding principle of the infant carrier 100 of the first embodiment in detail, as follows:

When releasing the lock, manually press the operation button 532 so that one end of the operation button 532 compresses the elastic reset member 533 , and the other end of the operation button 532 rotates to drive the bayonet 531 , and the bayonet 531 moves away from the engagement hole of the retractable actuating member 51 . 51a, the retractable actuating member 51 is released relative to the bottom tube 4; at this time, the operating webbing 54 is lifted with one hand, so that the operating webbing 54 simultaneously drives the retracting actuating members 51 on both sides of the infant carrier 100, so that the retracting actuating member 51 One end rotates upward, and the other end of the retractable actuating member 51 rotates downward and pulls the connecting member 52. The connecting member 52 pulls the driving member 63 to make the driving member 63 rotate; because the driving member 63 and the lower joint 62 are provided with driving slopes 631a, 621a, therefore, the driving member 63 moves in the axial direction under the action of the driving slopes 631a, 621a during rotation; at this time, the driving member 63 pushes the engaging member 64, so that the engaging member 64 is separated from the lower joint 62 and only It is engaged with the upper joint 61; at this time, the upper joint 61 and the lower joint 62 are released relative to each other. When the operating webbing 54 is continued to be lifted, under the action of the second torsion spring 7, the front foot 2 and the rear foot 3 are relatively close to each other, thereby further driving The rider 1 and the front legs 2 are folded with each other, so that the whole child carrier 100 can be completely folded.

Compared with the prior art, in the present invention, the retractable actuating member 51 is provided on the bottom tube 4 and the retractable actuating member 51 is connected with the locking joint 6 through the connecting member 52, so that the retractable actuating member 51 can be driven by driving the retractable actuating member 51. The locking joint 6 is released to achieve the purpose of quickly folding the rider 1, the front foot 2 and the rear foot 3, which is convenient and quick to fold; a safety locking device 53 is also provided, and the safety locking device 53 is used to make the rider 1, the front foot 2 and the rear foot 3 It can be locked or unlocked twice, thereby further improving the use safety of the folding mechanism 5; so that the entire infant carrier 100 can be quickly folded and used more safely.

As shown in FIG. 12 and FIG. 13 , the figure shows the infant carrier 100 according to the second embodiment of the present invention. The infant carrier 100 of the present embodiment has the same structure as the infant carrier 100 of the first embodiment, and the difference lies in The structure of the safety locking device, therefore, the same parts as the structure of the infant carrier 100 of the first embodiment will not be repeated here, and only the structure of the safety locking device 56 will be described below:

13 , 14 and 15 , the safety locking device 56 includes a bayonet 561 , a pull rod 562 , an operating slider 563 , a fixing block 564 and an elastic reset member 565 ; the bottom tube 4 has a seat body 41 , the seat body 41 A first clamping hole 411 and a second clamping hole 412 are opened on the top. The bayonet 561 is movably disposed on the rear leg 3 and can be selectively inserted into any hole of the first bayonet 411 and the second bayonet 412. When the infant carrier is unfolded, the bayonet 561 is engaged with the first bayonet 411. When the infant carrier is folded, the locking pin 561 is engaged with the second locking hole 412 . The provision of the first latching hole 411 can enable the latching pin 561 to be inserted therein when the infant carrier 100 is deployed, so as to realize the deployment and locking of the infant carrier. The second locking hole 412 is arranged to be engaged with the locking pin 561, so that the infant carrier can also be in a locked state when it is folded. The pull rod 562 is provided with an inclined groove 562a, and the locking pin 561 is slidably disposed in the inclined groove 562a through the shaft pin. The fixing block 564 is fixed in the rear leg 3 , and the fixing block 564 has an elongated hole 564 a for accommodating and limiting the shaft pin 566 and a through hole 564 b for accommodating the locking pin 561 . By arranging the pull rod 562 and the fixing block 564, and provided with the oblique groove 562a and the long hole 564a, the pull rod 562 can be pulled by the inclined groove 562a to drive the bayonet 561 to move, and then the bayonet 561 can be connected to the bottom tube 4 and the rear foot 3. Lock or unlock. The operation slider 563 is slidably disposed outside the rear foot 3 and connected with the pull rod 562 . Providing the operation slider 563 can make it easier for the user to operate the detent 561 and improve the convenience of use. The elastic restoring member 565 provides an elastic force for the pull rod 562 to push the locking pin 561 to connect to the bottom tube 4 and the rear foot 3 . Specifically, the elastic restoring member 565 is disposed between the pull rod 562 and the rear foot 3 . The provision of the elastic reset member 565 can make the bayonet 561 automatically lock the bottom tube 4 and the rear leg 3, so as to ensure that the bottom tube 4 and the rear leg 3 are in a locked state and avoid accidental folding.

12, the folding principle of the infant carrier 100 of the second embodiment is described in detail below, as follows:

When releasing the lock, manually operate the operation slider 563, so that the operation slider 563 slides up along the rear foot 3, the operation slider 563 drives the pull rod 562 to move upward, the pull rod 562 drives the bayonet 561 through the chute, and the bayonet 561 is in the chute 562a and 562a. Under the action of the elongated hole 564a, it slides from one end to the other end along the direction of the elongated hole 564a, so that the locking pin 561 slides from the first locking hole 411 inserted in the base body 41 to the state of being separated from the first locking hole 411; this , the bottom tube 4 and the rear foot 3 are released. At this time, the operating webbing 54 is lifted with one hand, so that the operating webbing 54 simultaneously drives the retracting actuating members 51 on both sides of the infant carrier 100, so that one end of the retracting actuating member 51 is rotated upward, and the other end of the retracting actuating member 51 is Rotate down and pull the connecting piece 52, the connecting piece 52 pulls the driving piece 63, so that the driving piece 63 rotates; since the driving piece 63 and the lower joint 62 are provided with the driving slopes 631a, 621a, the driving piece 63 drives the driving piece 63 when it rotates. The inclined surfaces 631a, 621a move in the axial direction; at this time, the driving member 63 pushes the engaging member 64, so that the engaging member 64 is separated from the lower joint 62 and only engages with the upper joint 61; at this time, the upper joint 61 and the The lower joint 62 is relatively released, and when the operating webbing 54 is continued to be lifted, under the action of the second torsion spring 7, the front foot 2 and the rear foot 3 are relatively close to each other, thereby further driving the driver 1 and the front foot 2 to fold each other, thereby making the infant carrier as a whole. Achieve full discount. When the folding is completed, the locking pin 561 is inserted into the second locking hole 412 under the action of the restoring force of the elastic restoring member 565, thereby locking the bottom tube 4 and the rear leg 3, and then locking the infant carrier in the folded state.

The above disclosures are only preferred examples of the present invention, and of course, the scope of the rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the scope of the patent application of the present invention still belong to the scope covered by the present invention.

Claims (16)

1. A retractable mechanism, suitable for a toddler carrier, the toddler carrier comprising a driver, a front foot, a rear foot and a bottom tube, the front foot and the driver are pivoted and locked by a locking joint; The rear foot is pivotally connected to the rider; both ends of the bottom tube are pivotally connected to the front foot and the rear foot respectively; it is characterized in that, the retracting mechanism includes: a retractable actuating member, the retractable actuating member is disposed on the bottom tube; a connecting piece, the connecting piece connects the retracting actuating piece and the locking joint; A safety locking device, the safety locking device is arranged on the bottom tube, the safety locking device includes a bayonet and a pull rod, the bayonet is movably connected to the bottom tube, and the bottom tube is connected to the bottom tube. Locking or unlocking between the tube and the rear foot; the draw rod is provided with a chute, and the bayonet is slidably arranged in the chute through a shaft pin; when the safety locking device is released, the operating The retracting actuating member drives the locking joint to release the locking through the connecting member, so that the rider, the front foot and the rear foot are mutually retracted. 2 . The foldable mechanism according to claim 1 , wherein the safety locking device further comprises an operation slider, the operation slider is slidably disposed on the rear foot and connected with the pull rod. 3 . 3 . The foldable mechanism according to claim 1 , wherein the safety locking device further comprises a fixing block, the fixing block is fixed on the rear foot, and the fixing block has the function of accommodating and limiting the position of the an elongated hole for the shaft pin, and a through hole for accommodating the bayonet. 4 . The foldable mechanism according to claim 1 , wherein the safety locking device further comprises an elastic reset member, and the elastic reset member provides a means for the pull rod to push the bayonet to connect to the bottom. 5 . Elasticity of the tube and the rear foot. 5 . The folding mechanism of claim 1 , wherein a first locking hole is formed on the bottom tube, and the locking pin is engaged with the first locking hole when the infant carrier is unfolded. 6 . . 6 . The folding mechanism of claim 5 , wherein a second locking hole is provided on the bottom tube, and when the infant carrier is folded, the locking pin is engaged with the second locking hole. 7 . hole. 7 . The folding mechanism of claim 6 , wherein the bottom tube has a seat body, and the first clamping hole and the second clamping hole are opened on the seat body. 8 . 8 . The retracting mechanism of claim 1 , wherein the retracting mechanism further comprises an operating webbing, and the operating webbing is connected to the retracting actuating member. 9 . 9 . The folding mechanism of claim 1 , wherein the connecting piece is a steel wire. 10 . 10 . The foldable mechanism according to claim 1 , wherein the locking joint comprises an upper joint, a lower joint, a driving member and an engaging member, and the upper joint is pivotally connected with the lower joint, 11 . The upper joint is fixed with the driver, and the lower joint is fixed with the front foot; the driving member, the engaging member, the upper joint and the lower joint are coaxially arranged, and the engaging member is simultaneously engaged with For the upper joint and the lower joint, the connecting piece is connected to the driving piece, so that the driving piece drives the engaging piece away from any one of the upper joint and the lower joint, so as to release the lock. 11 . The folding mechanism according to claim 10 , wherein a plurality of driving blocks extend axially around the central axis from one side of the driving member, and one side of the lower joint extends out corresponding to the driving blocks. 12 . The interference block, the driving block and the interference block are provided with mutually matched driving inclined surfaces. 12 . The retracting mechanism according to claim 10 , wherein the engaging member is a gear, and the upper joint and the lower joint are provided with engaging teeth which are matched with the gear. 13 . 13 . The foldable mechanism of claim 10 , wherein the locking joint further comprises a compression spring, the compression spring provides a means for the engaging member to engage with the upper joint and the lower joint at the same time. 14 . elasticity. 14. The retracting mechanism of claim 1, wherein the retracting mechanism comprises a first torsion spring, and the first torsion spring is disposed between the bottom tube and the retracting actuating member . 15. A child carrier, characterized in that it comprises: a driver a front foot, the front foot and the driver are pivoted and locked through a locking joint; a rear foot, the rear foot is pivotally connected to the driver; a bottom tube, two ends of which are pivotally connected to the front leg and the rear leg respectively; and, The collapsing mechanism according to any one of claims 1 to 14. 16 . The infant carrier of claim 15 , wherein the infant carrier further comprises a second torsion spring, and the second torsion spring is disposed between the bottom tube and the rear foot. 17 .

Images