CN220147404U - Child car capable of preventing handle from being excessively operated - Google Patents

Abstract

The baby carrier capable of preventing excessive operation of the handle comprises a frame, a seat and a handle mechanism; a seat reversing mechanism; a locking mechanism; an unlocking mechanism; when the seat is switched from forward placement to reverse placement, triggering the unlocking mechanism to unlock so as to enable the handle mechanism to continuously overturn from a transitional state to a preposed state; when the seat is switched from reverse placement to forward placement, the unlocking mechanism is triggered to unlock, so that the handle mechanism is continuously turned over from a transitional state to a rear state. The baby carrier capable of preventing the excessive operation of the handle is characterized in that the handle mechanism is in a transition state when being overturned, and the locking mechanism locks the handle mechanism when the handle mechanism is in the transition state, so that the handle mechanism is limited to continue to overturned, and the baby in the seat is prevented from being dangerous due to the fact that the handle mechanism is directly overturned without obstacle when the handle mechanism is directly switched from a front state to a rear state.

Description

Child car capable of preventing handle from being excessively operated

[ field of technology ]

The utility model relates to the field of infant products, in particular to a baby carrier capable of preventing excessive operation of a handle.

[ background Art ]

In a stroller frame with a seat rotation function, when the seat changes direction, the handle is inadvertently pushed to the opposite direction, i.e. from the parent end to the opposite direction, which not only causes inconvenience in use, but also consumes the cost of adding a front wheel brake system or related mechanism to meet safety regulations.

[ utility model ]

In order to solve the technical problem that the existing baby carriage handle is easy to push to the opposite direction due to carelessness, the utility model provides a baby carriage capable of preventing the handle from being excessively operated.

The utility model is realized by the following technical scheme:

a baby carrier for preventing excessive operation of handle comprises a frame, a seat and a seat

A handle mechanism which turns over relative to the seat and has a front state, a transition state and a rear state relative to the seat; the handle mechanism comprises a front handle group and a rear handle group;

a seat reversing mechanism for enabling the seat to rotate relative to the frame;

a locking mechanism for locking the position of the handle mechanism to restrict the handle mechanism from continuing to turn over when the handle mechanism turns over from a front state or a rear state to a transition state;

an unlocking mechanism for releasing the restriction of the locking mechanism to the handle mechanism so that the handle mechanism continues to turn over from a transitional state to a front state or a rear state;

when the seat is switched from forward placement to reverse placement, triggering the unlocking mechanism to unlock so as to enable the handle mechanism to continuously overturn from a transitional state to a preposed state;

When the seat is switched from reverse placement to forward placement, the unlocking mechanism is triggered to unlock, so that the handle mechanism is continuously turned over from a transitional state to a rear state.

The child car with the handle overoperation prevention function comprises a seat reversing mechanism, wherein the seat reversing mechanism comprises a fixed seat arranged on the frame and a rotating piece arranged on the handle mechanism, and the rotating piece is matched with the fixed seat so as to enable the seat to be placed forward or reversely relative to the frame.

The child car for preventing excessive operation of the handles, wherein the front handle group comprises a front telescopic tube and a front rotating tube pivoted on the front side of the rotating piece, and the front telescopic tube is sleeved with the front rotating tube so as to enable the front handle group to have a telescopic state; and/or

The rear handle group comprises a rear telescopic pipe and a rear rotating pipe pivoted on the rear side of the rotating piece, and the rear telescopic pipe is sleeved with the rear rotating pipe so that the rear handle group has a telescopic state;

the locking mechanism is used for locking the front handle group or the rear handle group to limit the extension of the front handle group or the rear handle group when the front handle group or the rear handle group rotates to the rear side of the fixed seat along with the rotating piece.

The child car for preventing excessive operation of the handle as described above, the locking mechanism comprises a front limit connecting piece arranged in the front rotating tube and connected with the front telescopic tube, and a front locking piece;

the locking mechanism further comprises a rear limiting connecting piece and a rear locking piece, wherein the rear limiting connecting piece is arranged in the rear rotating tube and connected with the rear telescopic tube;

the fixing seat is used for limiting the protrusion of the front locking piece positioned on the rear side of the fixing seat so as to enable the front locking piece to be buckled with the front limiting connecting piece and limit the extension of the front telescopic tube; or (b)

The fixing seat is used for limiting the protrusion of the rear locking piece positioned on the rear side of the fixing seat so as to enable the rear locking piece to be buckled with the rear limiting connecting piece and limit the extension of the rear telescopic tube.

The child car capable of preventing excessive operation of the handle, as described above, the unlocking mechanism comprises a yielding space arranged on the front side of the fixing seat, and the yielding space is provided for the front locking piece or the rear locking piece to protrude so as to release the buckling with the front locking piece or the rear locking piece.

A baby carrier for preventing excessive operation of handle comprises a frame, a seat and a seat

A handle mechanism which turns over relative to the seat and has a front state, a transition state and a rear state relative to the seat;

The seat reversing mechanism comprises a fixed seat arranged on the frame and a rotating piece arranged on the handle mechanism, and the rotating piece is matched with the fixed seat so as to enable the seat to be placed forward or reversely relative to the frame;

the locking mechanism comprises a front locking component and a rear locking component, and when the handle mechanism is turned from a front state or a rear state to a transition state, the positions of a pair of handle mechanisms of the front locking component and the rear locking component are locked so as to limit the handle mechanism to continue turning;

an unlocking mechanism that releases the restriction of the locking mechanism to the handle mechanism by the seat reversing mechanism so that the handle mechanism continues to be turned over from a transitional state to a front state or a rear state;

when the seat is switched from forward placement to reverse placement, triggering the unlocking mechanism to unlock so as to enable the handle mechanism to continuously overturn from a transitional state to a preposed state;

when the seat is switched from reverse placement to forward placement, the unlocking mechanism is triggered to unlock, so that the handle mechanism is continuously turned over from a transitional state to a rear state.

A stroller as described above that prevents handle overoperation, the handle mechanism includes a front handle set that cooperates with the front latch assembly and a rear handle set that cooperates with the rear latch assembly; and/or the number of the groups of groups,

When the front locking component or the rear locking component rotates to the rear side of the fixed seat along with the rotating piece, the front locking component or the rear locking component positioned on the rear side of the fixed seat is used for locking the handle mechanism so as to limit the change length.

The above described child car for preventing excessive handle operation, said handle mechanism comprising a front handle set and a rear handle set, wherein

The front handle group is in operable fit with the front locking assembly and comprises a front telescopic pipe and a front rotating pipe pivoted on the front side of the rotating piece, and the front telescopic pipe is sleeved with the front rotating pipe so as to enable the front handle group to have a telescopic state; and/or

The rear handle group is in operable fit with the rear locking assembly and comprises a rear telescopic pipe and a rear rotating pipe pivoted on the rear side of the rotating piece, and the rear telescopic pipe is sleeved with the rear rotating pipe so as to enable the rear handle group to have a telescopic state;

the locking mechanism is used for locking the front handle group or the rear handle group on the rear side of the fixed seat so as to limit the extension of the front handle group or the rear handle group when the front handle group or the rear handle group rotates to the rear side of the fixed seat along with the rotating piece.

The stroller for preventing excessive handle operation as described above or further comprising a front restraint mechanism for positioning the front handle set in an extended or retracted state;

a rear restraining mechanism for positioning the rear handle group in an expanded state or a contracted state;

the front handle group rotates to the rear side of the fixed seat along with the rotating piece, and when the front handle group is in a contracted state, the locking mechanism is used for locking the front handle group or the front limiting mechanism positioned on the rear side of the fixed seat, so that the front handle group or the front limiting mechanism is kept in a contracted state to limit the extension of the front handle group or the front limiting mechanism; or (b)

The locking mechanism is used for locking the rear handle group or the rear limiting mechanism positioned on the rear side of the fixed seat when the rear handle group rotates to the rear side of the fixed seat along with the rotating piece and is in a contracted state, so that the rear handle group or the rear limiting mechanism is kept in the contracted state to limit the extension of the rear handle group or the rear limiting mechanism.

The child car for preventing excessive operation of the handle as described above further includes a handle unlocking mechanism for releasing the positioning effect of the front limiting mechanism and the rear limiting mechanism;

the locking mechanism is matched with the handle unlocking mechanism so that when the front handle group is locked by the locking mechanism and kept in a contracted state, the handle unlocking mechanism only releases the positioning effect of the rear limiting mechanism; or (b)

The locking mechanism cooperates with the handle unlocking mechanism to release only the positioning effect of the front limiting mechanism when the locking mechanism locks the rear handle group and keeps it in a contracted state.

The stroller as described above for preventing handle overoperation, the handle mechanism comprises an upper handle set coupled to the front handle set and/or the rear handle set;

the handle unlocking mechanism comprises an operating piece arranged on the upper handle group, a split piece, a main traction rope used for connecting the operating piece with the middle part of the split piece, a front traction rope used for connecting one end of the split piece with the front limiting mechanism, and a rear traction rope used for connecting the other end of the split piece with the rear limiting mechanism.

The child car capable of preventing excessive operation of the handles, wherein the rear rotating tube is provided with two positioning holes, the rear limiting mechanism comprises a limiting assembly and a locking piece which is matched with the two positioning holes to enable the rear handle group to be positioned in an unfolding state or a shrinking state, and the rear traction rope drives the locking piece to exit from the positioning holes through the limiting assembly;

the locking mechanism comprises a lower stop block arranged on the rear rotating tube and an upper stop block arranged on the limiting assembly;

When the rear handle group is positioned in a contracted state, the lower stop block pushes against the upper stop block so that the upper stop block stops the locking piece from exiting the positioning hole.

The child car with the handle overoperation prevention function comprises the locking mechanism, wherein the locking mechanism comprises the sliding piece and the yielding area, the sliding piece is used for pulling the lower stop block to move away from the upper stop block, the yielding area is arranged on the rear side of the fixing seat and used for yielding the sliding piece to move so as to release the pulling effect of the sliding piece on the lower stop block, and the lower stop block is ejected out from the direction of the upper stop block under the action of the spring.

The child car capable of preventing excessive operation of the handle comprises the limiting part arranged on the front side of the fixed seat, the sliding part rotates along with the rotating part until the sliding part corresponds to the limiting part, and the limiting part pushes the sliding part to rotate so as to pull the lower stop block and the upper stop block to be separated from the pushing.

The child car as defined above or in which the handle mechanism further comprises an upper handle set, the front and rear telescoping tubes being pivotally connected together at a lower end of the upper handle set, the locking mechanism being adapted to lock the front or rear handle set on a rear side of the fixed seat to limit extension thereof.

Compared with the prior art, the utility model has the following advantages:

the baby carrier capable of preventing excessive operation of the handle can rotate the seat through the seat reversing mechanism, so that the seat is switched between forward and backward, and meanwhile, the state of the handle mechanism relative to the seat also needs to be correspondingly adjusted. When the seat rotates, the unlocking mechanism triggers and releases the restriction of the handle mechanism, the handle mechanism needs to pass through a transition state no matter the handle mechanism is overturned from a front state to a rear state or from the rear state to the front state, and when the handle mechanism is in the transition state, the locking mechanism can lock the handle mechanism, so that the handle mechanism is restricted from continuously overturned, and the handle mechanism is prevented from being directly switched from the front state to the rear state, so that the trouble-free direct overturned handle mechanism can cause danger to infants in the seat.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a handle mechanism of a first embodiment in a reclined position relative to a seat;

FIG. 2 is a schematic view of the handle mechanism of FIG. 1 in a transitional state relative to the seat;

FIG. 3 is a schematic view of the handle mechanism of FIG. 1 in a forward position relative to the seat;

FIG. 4 is a schematic view of the handle mechanism of FIG. 1;

FIG. 5 is a cross-sectional view at A of FIG. 4;

FIG. 6 is a cross-sectional view at B of FIG. 4;

FIG. 7 is a schematic diagram of the structure of the unlocking mechanism;

FIG. 8 is an internal block diagram of FIG. 1;

fig. 9 is a schematic structural view of a second embodiment;

FIG. 10 is a right side view of FIG. 9;

FIG. 11 is a cross-sectional view taken at C-C of FIG. 10;

FIG. 12 is an internal structural view of the handle mechanism of FIG. 9;

FIG. 13 is an internal structural view of the rear handle set;

FIG. 14 is an internal structural view of the front handle set;

fig. 15 is a sectional view at D-D of fig. 10.

[ detailed description ] of the utility model

In order to make the technical scheme and beneficial effects of the technical problem solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Embodiment one: as shown in fig. 1-8, the child car capable of preventing excessive operation of the handle comprises a frame 1, a seat 2 and a seat

A handle mechanism 3 which is turned over with respect to the seat 2 and has a front state, a transition state, and a rear state with respect to the seat 2; the handle mechanism 3 comprises a front handle group 32 and a rear handle group 33;

a seat reversing mechanism 6 for enabling the seat 2 to rotate relative to the frame 1;

a locking mechanism 4 for locking the position of the handle mechanism 3 to restrict the handle mechanism 3 from continuing to turn over when the handle mechanism 3 turns over from the front state or the rear state to the transition state;

an unlocking mechanism 5 for releasing the restriction of the handle mechanism 3 by the locking mechanism 4 so that the handle mechanism 3 is continuously turned over from the transitional state to the front state or the rear state;

when the seat 2 is switched from forward placement to reverse placement, the unlocking mechanism 5 is triggered to unlock, so that the handle mechanism 3 is continuously turned over from a transitional state to a front state;

when the seat 2 is switched from the reverse placement to the forward placement, the unlocking mechanism 5 is triggered to unlock, so that the handle mechanism 3 continues to overturn from the transitional state to the rear state.

The baby carrier capable of preventing excessive operation of the handle can rotate the seat through the seat reversing mechanism, so that the seat is switched between forward and backward, and meanwhile, the state of the handle mechanism relative to the seat also needs to be correspondingly adjusted. When the seat rotates, the unlocking mechanism triggers and releases the restriction of the handle mechanism, the handle mechanism needs to pass through a transition state no matter the handle mechanism is overturned from a front state to a rear state or from the rear state to the front state, and when the handle mechanism is in the transition state, the locking mechanism can lock the handle mechanism, so that the handle mechanism is restricted from continuously overturned, and the handle mechanism is prevented from being directly switched from the front state to the rear state, so that the trouble-free direct overturned handle mechanism can cause danger to infants in the seat. In this embodiment, when the seat needs to be switched from the forward position to the reverse position, the handle mechanism is pushed from the rear position to the transitional position, then the seat is switched by the seat reversing mechanism, and after the seat is switched to the reverse position, the handle mechanism is pushed from the transitional position to the front position. In the process, the handle mechanism cannot be directly turned from the rear side to the front side of the seat, so that the risk of danger to infants is reduced.

Further, as a preferred embodiment of the present invention, but not limited to, the seat reversing mechanism 6 includes a fixed seat 61 provided on the frame 1, and a rotating member 62 provided on the handlebar mechanism 3, wherein the rotating member 62 cooperates with the fixed seat 61 to allow the seat 2 to be placed forward or backward with respect to the frame 1. The seat reversing mechanism 6 is used to effect steering and positioning of the seat.

Further, as a preferred embodiment of the present invention, but not limited thereto, the front handle group 32 includes a front extension pipe 321 and a front rotation pipe 322 pivotally connected to the front side of the rotation member 62, and the front extension pipe 321 is sleeved with the front rotation pipe 322 to enable the front handle group 32 to have a telescopic state; and/or

The rear handle set 33 includes a rear telescopic tube 331 and a rear rotating tube 332 pivotally connected to the rear side of the rotating member 62, and the rear telescopic tube 331 is sleeved with the rear rotating tube 332 so that the rear handle set 33 has a telescopic state;

the locking mechanism 4 is used to lock the front handle group 32 or the rear handle group 33 to restrict the extension thereof when the front handle group 32 or the rear handle group 33 rotates to the rear side of the fixing base 61 with the rotating member 62. In this embodiment, when the handle mechanism 3 is pushed forward from the rear position to the front of the seat, after the locking mechanism 4 locks the rear handle group 33 located on the rear side of the fixing base 61, the rear telescopic tube 331 is limited to extend relative to the rear rotating tube 332 by the locking mechanism 4, so that the handle mechanism 3 is pushed forward to a certain extent to the front of the seat 2, that is, in the transitional state, the handle mechanism 3 cannot be pushed forward continuously due to the limited length of the rear handle group 33, thereby achieving the effect of preventing the handle from being transitionally operated.

Further, as a preferred embodiment of the present invention, but not limited thereto, the locking mechanism 4 includes a front limit connector 41 provided in the front rotating tube 322 and connected to the front extension tube 321, and a front locking member 42; the two constitute a front locking component;

the locking mechanism 4 further comprises a rear limit connector 43 and a rear locking member 44, wherein the rear limit connector 43 is arranged in the rear rotating tube 332 and connected with the rear telescopic tube 331; the two constitute a rear locking component;

the fixing seat 61 is used for limiting the protrusion of the front locking piece 42 positioned on the rear side of the front locking piece 42 so as to enable the front locking piece 42 to be buckled with the front limiting connecting piece 41 and limit the extension of the front telescopic pipe 321; or (b)

The fixing base 61 is used for limiting the protrusion of the rear locking piece 44 on the rear side thereof, so that the rear locking piece 44 is buckled with the rear limiting connecting piece 43, and the extension of the rear telescopic tube 331 is limited. In this embodiment, the fixing base 6 limits the front locking member 42 or the rear locking member 43 from protruding, so that the front locking member 42 or the rear locking member 43 can be buckled, and the buckled front telescopic tube 321 or rear telescopic tube 331 is correspondingly pulled by the front limiting connecting member 41 or the rear limiting connecting member 43 so as not to extend, thereby achieving the locking effect.

Further, as a preferred embodiment of the present invention, but not limited thereto, the unlocking mechanism 5 includes a relief space 51 provided on the front side of the fixing base 61, and the relief space 51 is provided for the front locking member 42 or the rear locking member 44 to protrude so as to release the engagement with the front locking member 42 or the rear locking member 44. In this embodiment, the relief space 51 is provided for the front locking member 4 or the rear locking member 44 to protrude, so that the front telescopic tube 321 or the rear telescopic tube 331 can extend, and the handle mechanism 3 can be turned over.

Further, as a preferred embodiment of the present solution, but not limiting, a front limiting mechanism 7 is further included for positioning said front handle set 32 in an expanded state or in a contracted state;

a rear restriction mechanism 8 for positioning the rear handle group 33 in an expanded state or a contracted state;

when the front handle group 32 rotates to the rear side of the fixed seat 61 along with the rotating member 62 and is in a contracted state, the locking mechanism 4 is used for locking the front handle group 32 or the front limiting mechanism 7 positioned on the rear side of the fixed seat 61 so as to keep the front handle group 32 or the front limiting mechanism 7 in a contracted state to limit the extension thereof; or (b)

The locking mechanism 4 is configured to lock the rear handle group 33 or the rear restricting mechanism 8 located on the rear side of the fixing base 61 in a contracted state to restrict the extension thereof when the rear handle group 33 rotates to the rear side of the fixing base 61 with the rotating member 62.

Further, as a preferred embodiment of the present invention, but not limited thereto, the handle mechanism 3 further comprises an upper handle group 31, the front telescopic tube 321 and the rear telescopic tube 331 are pivoted to the lower end of the upper handle group 31 together, and the locking mechanism 4 is used to lock the front handle group 32 or the rear handle group 33 on the rear side of the fixing base 61 to restrict the extension thereof.

Embodiment two: as shown in fig. 9 to 15, it is different from the first embodiment in that: a baby carrier for preventing excessive operation of a handle comprises a frame 1, a seat 2 and a seat

A handle mechanism 3 which is turned over with respect to the seat 2 and has a front state, a transition state, and a rear state with respect to the seat 2; the handle mechanism 3 comprises a front handle group 32 and a rear handle group 33;

the seat reversing mechanism 6 comprises a fixed seat 61 arranged on the frame 1 and a rotating piece 62 arranged on the handle mechanism 3, wherein the rotating piece 62 is matched with the fixed seat 61 so as to enable the seat 2 to be placed forward or backward relative to the frame 1;

a locking mechanism 4, comprising a front locking assembly 401 and a rear locking assembly 402, wherein when the handle mechanism 3 is turned from a front state or a rear state to a transition state, the front locking assembly and the rear locking assembly lock the positions of a pair of the handle mechanisms 3 so as to limit the handle mechanism 3 to continue turning;

An unlocking mechanism 5 for releasing the restriction of the handle mechanism 3 by the locking mechanism 4 by the seat reversing mechanism 6 so that the handle mechanism 3 is continuously turned over from the transitional state to the front state or the rear state;

when the seat 2 is switched from forward placement to reverse placement, the unlocking mechanism 5 is triggered to unlock, so that the handle mechanism 3 is continuously turned over from a transitional state to a front state;

when the seat 2 is switched from the reverse placement to the forward placement, the unlocking mechanism 5 is triggered to unlock, so that the handle mechanism 3 continues to overturn from the transitional state to the rear state. When the seat 2 is placed forward, the rear locking component 402 locks the handle mechanism 3, when an infant needs to be changed from forward sitting to backward sitting, namely, when the seat 2 is switched from forward placing to reverse placing, the handle mechanism 3 is turned over to the transition device from the rear state, then the seat 2 is turned through the seat reversing mechanism 6, so that the seat 2 is placed reversely relative to the frame 1, at the moment, the unlocking structure 5 unlocks the rear locking component 402, the handle mechanism 3 is turned over to the front state, the front locking component 401 in the locking mechanism 4 locks the position of the handle mechanism 3, and the operation step of switching the seat 2 from reverse placing to forward placing is completed.

Further, as a preferred embodiment of the present solution, and not by way of limitation, the handle mechanism 3 comprises a front handle set 32 cooperating with the front locking assembly 401, and a rear handle set 33 cooperating with the rear locking assembly 402; and/or, when the front locking assembly 401 or the rear locking assembly 402 rotates to the rear side of the fixing base 61 with the rotating member 62, the front locking assembly 401 or the rear locking assembly 402 located on the rear side of the fixing base 61 is used to lock the handle mechanism 3 to limit the variation length. After the handle mechanism 3 is limited to be stretched, the handle mechanism 3 is limited by the length and can only be turned to a transitional state at most.

Further, as a preferred embodiment of the present invention, but not by way of limitation, the handle mechanism 3 comprises a front handle set 32 and a rear handle set 33, wherein

The front handle group 32, which is operatively engaged with the front locking assembly 401, includes a front extension pipe 321, and a front rotation pipe 322 pivotally connected to the front side of the rotation member 62, and the front extension pipe 321 is sleeved with the front rotation pipe 322 to enable the front handle group 32 to have a telescopic state; and/or

The rear handle set 33 operatively engaged with the rear locking assembly 402 and including a rear telescopic tube 331 and a rear rotating tube 332 pivotally connected to the rear side of the rotating member 62, the rear telescopic tube 331 being sleeved with the rear rotating tube 332 to provide the rear handle set 33 with a telescopic state;

The locking mechanism 4 is used to lock the front handle group 32 or the rear handle group 33 located on the rear side of the fixing base 61 to restrict the extension thereof when the front handle group 32 or the rear handle group 33 rotates to the rear side of the fixing base 61 with the rotating member 62.

Further, as a preferred embodiment of the present invention, not limited thereto, a handle unlocking mechanism 9 for releasing the positioning effect of the front limiting mechanism 7 and the rear limiting mechanism 8 is further included;

the locking mechanism 4 cooperates with the handle unlocking mechanism 9 so that when the locking mechanism 4 locks the front handle group 32 and keeps it in a contracted state, the handle unlocking mechanism 9 releases only the positioning effect of the rear limiting mechanism 8; or (b)

The lock mechanism 4 cooperates with the handle unlocking mechanism 9 so that the handle unlocking mechanism 9 releases only the positioning effect of the front limiting mechanism 7 when the lock mechanism 4 locks the rear handle group 33 and keeps it in the contracted state.

Further, as a preferred embodiment of the present solution, but not limiting, the handle mechanism 3 comprises an upper handle set 31 connected to the front handle set 32 and/or the rear handle set 33;

The handle unlocking mechanism 9 comprises an operating member 91 arranged on the upper handle group 31, a split member 92, a main traction cable 93 for connecting the operating member 91 with the middle part of the split member 92, a front traction cable 94 for connecting one end of the split member 92 with the front limiting mechanism 7, and a rear traction cable 95 for connecting the other end of the split member 92 with the rear limiting mechanism 8. In this embodiment, pressing the operating member drives the main traction cable to pull the split member, and at this time, if the rear handle set is in the retracted state, the rear traction cable cannot be pulled, but the front traction cable will be pulled, so as to unlock the front handle set, so that it can be switched from the unfolded state to the retracted state.

Further, as a preferred embodiment of the present invention, but not limited to, two positioning holes 3321 are provided on the rear rotation tube 332, the rear limiting mechanism 8 includes a limiting assembly 81, and a locking member 82 cooperating with the two positioning holes 3321 to position the rear handle group 33 in the unfolded state or the contracted state, and the rear traction cable 95 drives the locking member 82 to exit the positioning holes 3321 through the limiting assembly 81; the positioning hole 3321 near the rear rotation tube 332 corresponds to a contracted state.

The locking mechanism 4 comprises a lower stop 45 provided on the rear rotation tube 332, and an upper stop 46 provided on the limiting assembly 81;

when the rear handle group 33 is positioned in the contracted state, the lower stopper 45 presses against the upper stopper 46, so that the upper stopper 46 blocks the locking member 82 from exiting the positioning hole 3321. The effect of the front limiting mechanism 7 is the same as that of the rear limiting mechanism 8, except that the front limiting mechanism 7 is provided on the front handle group and the rear limiting mechanism 8 is provided on the rear handle group.

Further, as a preferred embodiment of the present invention, but not limited to, the locking mechanism 4 includes a slider 47 for pulling the lower stopper 45 to move away from the upper stopper 46, and a yielding area 48 provided on the rear side of the fixing seat 61, where the yielding area 48 yields the slider 47 for the slider 47 to move so as to release the pulling effect of the slider 47 on the lower stopper 45, so that the lower stopper 45 is ejected toward the upper stopper 46 under the action of a spring. In the present embodiment, the pushing member 471 is kept in a rotation trend by the torsion spring, and pushes the sliding member 47 to move toward the yielding region 48, and the yielding region 48 provides a space for the sliding member 47. The lower stopper 45 is pushed out by the spring to the direction approaching the upper stopper, thereby blocking the upper stopper 46 from ejecting, and when the upper stopper 46 fails to eject, the blocking locking piece 82 is retracted, so that the rear handle group is kept in a contracted state.

Further, as a preferred embodiment of the present solution, but not limited to, the unlocking mechanism 5 includes a limiting portion 52 provided on the front side of the fixing base 61, and when the sliding member 47 rotates with the rotating member 62 to correspond to the limiting portion 52, the limiting portion 52 pushes the sliding member 47 to rotate so as to pull the lower stopper 45 to be separated from the upper stopper 46. In this embodiment, the limiting part 52 pushes the pushing member 471 to rotate, the pull cable 472 pulls the lower stop block 45 to approach in the direction of the pushing member, so as to provide a pop-up space for the upper stop block 46, and after the upper stop block 46 pops up, a retracting space is provided for the locking member 82, and the unlocking mechanism 9 can be used to pull the locking member 82 to retract, so that the state is switched to the expanding state or the contracting state.

Further, as a preferred embodiment of the present solution, but not limiting, a front limiting mechanism 7 is further included for positioning said front handle set 32 in an expanded state or in a contracted state;

a rear restriction mechanism 8 for positioning the rear handle group 33 in an expanded state or a contracted state;

when the front handle group 32 rotates to the rear side of the fixed seat 61 along with the rotating member 62 and is in a contracted state, the locking mechanism 4 is used for locking the front handle group 32 or the front limiting mechanism 7 positioned on the rear side of the fixed seat 61 so as to keep the front handle group 32 or the front limiting mechanism 7 in a contracted state to limit the extension thereof; or (b)

The locking mechanism 4 is configured to lock the rear handle group 33 or the rear restricting mechanism 8 located on the rear side of the fixing base 61 in a contracted state to restrict the extension thereof when the rear handle group 33 rotates to the rear side of the fixing base 61 with the rotating member 62.

Further, as a preferred embodiment of the present invention, but not limited thereto, the handle mechanism 3 further comprises an upper handle group 31, the front telescopic tube 321 and the rear telescopic tube 331 are pivoted to the lower end of the upper handle group 31 together, and the locking mechanism 4 is used to lock the front handle group 32 or the rear handle group 33 on the rear side of the fixing base 61 to restrict the extension thereof.

In other words, the present embodiment achieves the effect of preventing excessive handle operation by limiting the front limiting mechanism 7 of the front handle group 32 and the rear limiting mechanism 8 of the rear handle group 33 by the up-and-down stoppers of the front locking assembly 401 and the rear locking assembly 402.

The front handle group 32 is moved to an expanded state or a contracted state by the front limiting mechanism 7; the rear handle group 33 is moved to an expanded state or a contracted state by the rear limiting mechanism 8;

the front locking assembly 401 comprises a lower stop 45 provided on the front rotation tube 322 and an upper stop 46 provided on the front limiting mechanism 7;

The rear lock assembly 402 includes a lower stopper 45 provided on the rear rotation tube 332, and an upper stopper 46 provided on the rear restriction mechanism 8;

when the front handle group 32 or the rear handle group 33 is positioned in the contracted state at the rear side of the vehicle frame, the lower stopper 45 presses the upper stopper 46 so that the upper stopper 46 blocks the release of the corresponding front limiting mechanism 7 or rear limiting mechanism 8.

Both the front locking assembly 401 and the rear locking assembly 402 comprise a slider 47 for pulling the respective lower stopper 45 to move away from the respective upper stopper 46; the yielding area 48 provided on the rear side of the fixed seat 61 yields the sliding member 47 for the sliding member 47 to move so as to release the pulling effect of the sliding member 47 on the lower stop block 45, so that the lower stop block 45 is pushed out in the direction of the upper stop block 46 under the action of the spring, and the locking member of the front limiting mechanism 7 or the rear limiting mechanism 8 positioned on the rear side of the frame is limited to retract to the releasing position.

The unlocking mechanism 5 comprises a limiting part 52 arranged on the front side of the fixed seat 61, when the sliding piece 47 rotates along with the rotating piece 62 to correspond to the limiting part 52, the limiting part 52 pushes the sliding piece 47 to rotate so as to pull the lower stop block 45 and the upper stop block 46 to be separated from the pushing pressure, so that the upper stop block 46 can not block the corresponding front limiting mechanism 7 or the corresponding rear limiting mechanism 8 to unlock, and the front handle group 32 or the rear handle group 33 can be extended and retracted.

The stroller for preventing handle overoperation further comprises a handle unlocking mechanism 9. The front handle group 32 and the rear handle group 33 are controlled to be kept locked by the cooperation of the locking mechanism 4 and the handle unlocking mechanism 9, and the other is controlled to be released. Specifically, the handle unlocking mechanism 9 includes an operating member 91 disposed on the upper handle group 31, a split member 92, a main traction cable 93 for connecting the operating member 91 with the middle part of the split member 92, a front traction cable 94 for connecting one end of the split member 92 with the front limiting mechanism 7, and a rear traction cable 95 for connecting the other end of the split member 92 with the rear limiting mechanism 8.

Wherein, the rear rotation tube 332 is provided with two positioning holes 3321, the rear limiting mechanism 8 comprises a limiting component 81 connected with the rear traction lock 95, and a locking piece 82 matched with the two positioning holes 3321 to position the rear handle group 33 in an unfolding state or a shrinking state; the front rotation pipe 322 has the same configuration as the front limiting mechanism 7. The front rotation tube 322 is provided with two positioning holes, and the front limiting mechanism 7 includes a limiting assembly connected with the front traction lock 94, and a locking member cooperating with the two positioning holes to position the front handle group 32 in an expanded state or a contracted state.

When the front position is to be replaced to the rear position, the rear limiting mechanism 8 positioned at the rear side of the fixed seat cannot be unlocked due to the blocking of the rear locking component 402 and is kept in a contracted state, so that when the handle unlocking mechanism 9 is operated, only the front limiting mechanism 7 of the front handle group 32 can be unlocked to unlock the front handle group, so that the handle mechanism 3 can move forwards but cannot move forwards excessively and is kept in an excessive position; further, when the handle mechanism 3 is rotated at the over position, the front handle group 32 is rotated to the rear side of the fixing seat 61, the rear handle group 33 is rotated to the front side of the fixing seat 61, and at the same time, the sliding parts of the front locking component 401 and the rear locking component 402 are matched with the limiting parts 52 and the yielding areas 48 on the front side and the rear side of the fixing seat 61, so that the rear locking component 402 rotated to the front does not limit the rear limiting mechanism 8 any more, the rear handle group 33 stretches and contracts, and the front locking component 401 rotated to the rear limits the unlocking of the front limiting mechanism 7, and the front handle group 32 keeps the contracted state, so that the handle mechanism 3 cannot be excessively operated forward and can only move backward, and the reverse to the rear setting position is achieved. And the reversing operation is circularly performed.

The working principle of this embodiment is as follows:

the handle overoperation prevention is achieved by a release limit of the front handle set 32 and the rear handle set 33, or by the way of the front locking assembly and the rear locking assembly respectively acting and not acting on the handle mechanism 3. When the handle mechanism 3 is pushed forward of the seat from the rear position, after the locking mechanism 4 locks the rear handle group 33 located on the rear side of the fixed seat 61, the rear telescopic tube 331 is restricted from being extended relative to the rear rotating tube 332 by the locking mechanism 4, so that the handle mechanism 3 is pushed forward of the seat 2 to a certain extent, namely, in the transitional state, the handle mechanism 3 cannot be pushed forward continuously due to the length restriction of the rear handle group 33, and the effect of preventing the transition operation of the handle is achieved. The same operation is also possible when the front handle group 32 is located at the rear side of the fixing base 61, and excessive operation of the handles can be prevented.

The embodiments provided above in connection with the specific disclosure are not intended to limit the practice of the application to those descriptions. The present application should be considered as the protection scope of the present application, if the structure of the method is similar to that of the present application, or if several technical deductions or substitutions are made on the premise of the present application.

Claims (15)

1. Prevent bassinet of excessive operation of handlebar, including frame (1) and seat (2), its characterized in that: and also comprises

A handle mechanism (3) which is turned over relative to the seat (2) and has a front state, a transition state and a rear state relative to the seat (2); the handle mechanism (3) comprises a front handle group (32) and a rear handle group (33);

a seat reversing mechanism (6) for enabling the seat (2) to rotate relative to the frame (1);

a locking mechanism (4) for locking the position of the handle mechanism (3) to limit the continuous turning of the handle mechanism (3) when the handle mechanism (3) is turned from a front state or a rear state to a transition state;

an unlocking mechanism (5) for releasing the restriction of the locking mechanism (4) on the handle mechanism (3) so that the handle mechanism (3) continues to turn over from a transitional state to a front state or a rear state;

when the seat (2) is switched from forward placement to reverse placement, the unlocking mechanism (5) is triggered to unlock, so that the handle mechanism (3) is continuously turned over from a transitional state to a front state;

When the seat (2) is switched from reverse placement to forward placement, the unlocking mechanism (5) is triggered to unlock, so that the handle mechanism (3) is continuously turned from a transitional state to a rear state.

2. The anti-handle overoperation stroller of claim 1, wherein: the seat reversing mechanism (6) comprises a fixed seat (61) arranged on the frame (1) and a rotating piece (62) arranged on the handle mechanism (3), wherein the rotating piece (62) is matched with the fixed seat (61) so as to enable the seat (2) to be placed forward or reversely relative to the frame (1).

3. The anti-handle overoperation stroller of claim 2, wherein: the front handle group (32) comprises a front telescopic pipe (321) and a front rotating pipe (322) pivoted on the front side of the rotating piece (62), and the front telescopic pipe (321) is sleeved with the front rotating pipe (322) so as to enable the front handle group (32) to have a telescopic state; and/or

The rear handle group (33) comprises a rear telescopic tube (331) and a rear rotating tube (332) pivoted on the rear side of the rotating piece (62), and the rear telescopic tube (331) is sleeved with the rear rotating tube (332) so that the rear handle group (33) has a telescopic state;

The locking mechanism (4) is used for locking the front handle group (32) or the rear handle group (33) to limit the extension of the front handle group (32) or the rear handle group (33) when the front handle group (32) or the rear handle group (33) rotates to the rear side of the fixed seat (61) along with the rotating piece (62).

4. A stroller for preventing excessive handle operation according to claim 3, wherein: the locking mechanism (4) comprises a front limiting connecting piece (41) and a front locking piece (42), wherein the front limiting connecting piece (41) is arranged in the front rotating tube (322) and connected with the front telescopic tube (321);

the locking mechanism (4) further comprises a rear limiting connecting piece (43) and a rear locking piece (44), wherein the rear limiting connecting piece (43) is arranged in the rear rotating tube (332) and connected with the rear telescopic tube (331);

the fixing seat (61) is used for limiting the protrusion of the front locking piece (42) positioned on the rear side of the fixing seat so as to enable the front locking piece (42) to be buckled with the front limiting connecting piece (41) and limit the extension of the front telescopic pipe (321); or (b)

The fixing seat (61) is used for limiting the protrusion of the rear locking piece (44) positioned on the rear side of the fixing seat so as to enable the rear locking piece (44) to be buckled with the rear limiting connecting piece (43) and limit the extension of the rear telescopic tube (331).

5. The anti-handle overoperation stroller of claim 4, wherein: the unlocking mechanism (5) comprises a yielding space (51) arranged on the front side of the fixed seat (61), and the yielding space (51) is used for the front locking piece (42) or the rear locking piece (44) to protrude so as to release the buckling with the front locking piece (42) or the rear locking piece (44).

6. Prevent bassinet of excessive operation of handlebar, including frame (1) and seat (2), its characterized in that: and also comprises

A handle mechanism (3) which is turned over relative to the seat (2) and has a front state, a transition state and a rear state relative to the seat (2);

the seat reversing mechanism (6) comprises a fixed seat (61) arranged on the frame (1) and a rotating piece (62) arranged on the handle mechanism (3), wherein the rotating piece (62) is matched with the fixed seat (61) so as to enable the seat (2) to be placed forward or reversely relative to the frame (1);

the locking mechanism (4) comprises a front locking assembly (401) and a rear locking assembly (402), and when the handle mechanism (3) is turned from a front state or a rear state to a transition state, the front locking assembly (401) and the rear locking assembly lock the positions of a pair of the handle mechanisms (3) so as to limit the handle mechanism (3) from being turned continuously;

an unlocking mechanism (5) for releasing the restriction of the locking mechanism (4) on the handle mechanism (3) by the seat reversing mechanism (6) so as to enable the handle mechanism (3) to continuously turn over from a transitional state to a front state or a rear state;

when the seat (2) is switched from forward placement to reverse placement, the unlocking mechanism (5) is triggered to unlock, so that the handle mechanism (3) is continuously turned over from a transitional state to a front state;

When the seat (2) is switched from reverse placement to forward placement, the unlocking mechanism (5) is triggered to unlock, so that the handle mechanism (3) is continuously turned from a transitional state to a rear state.

7. The anti-handle overoperation stroller of claim 6, wherein: the handle mechanism (3) comprises a front handle group (32) cooperating with the front locking assembly (401), and a rear handle group (33) cooperating with the rear locking assembly (402); and/or the number of the groups of groups,

when the front locking assembly (401) or the rear locking assembly (402) rotates to the rear side of the fixed seat (61) along with the rotating piece (62), the front locking assembly (401) or the rear locking assembly (402) positioned on the rear side of the fixed seat (61) is used for locking the handle mechanism (3) so as to limit the change length.

8. The anti-handle overoperation stroller of claim 7, wherein: the handle mechanism (3) comprises a front handle group (32) and a rear handle group (33), wherein

The front handle group (32) is operatively matched with the front locking assembly (401) and comprises a front telescopic pipe (321) and a front rotating pipe (322) pivoted on the front side of the rotating piece (62), and the front telescopic pipe (321) is sleeved with the front rotating pipe (322) so as to enable the front handle group (32) to have a telescopic state; and/or

The rear handle set (33) is operatively engaged with the rear locking assembly (402) and comprises a rear telescopic tube (331) and a rear rotating tube (332) pivoted to the rear side of the rotating member (62), and the rear telescopic tube (331) is sleeved with the rear rotating tube (332) so as to enable the rear handle set (33) to have a telescopic state;

the locking mechanism (4) is used for locking the front handle group (32) or the rear handle group (33) on the rear side of the fixed seat (61) to limit the extension of the front handle group (32) or the rear handle group (33) when the front handle group (32) or the rear handle group (33) rotates to the rear side of the fixed seat (61) along with the rotating piece (62).

9. A stroller for preventing excessive handle operation according to claim 3 or 8, wherein: further comprising a front limiting mechanism (7) for positioning said front handle set (32) in an expanded state or in a contracted state;

a rear restriction mechanism (8) for positioning the rear handle group (33) in an expanded state or a contracted state;

the front handle group (32) rotates to the rear side of the fixed seat (61) along with the rotating piece (62), and when the front handle group is in a contracted state, the locking mechanism (4) is used for locking the front handle group (32) or the front limiting mechanism (7) positioned on the rear side of the fixed seat (61) to keep the front handle group or the front limiting mechanism in a contracted state so as to limit the extension of the front handle group or the front limiting mechanism; or (b)

The rear handle group (33) rotates to the rear side of the fixed seat (61) along with the rotating piece (62), and when the rear handle group is in a contracted state, the locking mechanism (4) is used for locking the rear handle group (33) or the rear limiting mechanism (8) positioned on the rear side of the fixed seat (61) to keep the rear handle group or the rear limiting mechanism in a contracted state so as to limit the extension of the rear handle group or the rear limiting mechanism.

10. The anti-handle overoperation stroller of claim 9, wherein: the device also comprises a handle unlocking mechanism (9) for releasing the positioning effect of the front limiting mechanism (7) and the rear limiting mechanism (8);

the locking mechanism (4) is matched with the handle unlocking mechanism (9) so that when the front handle group (32) is locked by the locking mechanism (4) and kept in a contracted state, the handle unlocking mechanism (9) only releases the positioning effect of the rear limiting mechanism (8); or (b)

The locking mechanism (4) cooperates with the handle unlocking mechanism (9) so that the handle unlocking mechanism (9) releases only the positioning effect of the front limiting mechanism (7) when the locking mechanism (4) locks the rear handle group (33) and keeps it in a contracted state.

11. The anti-handle overoperation stroller of claim 10, wherein: the handle mechanism (3) comprises an upper handle group (31) connected with the front handle group (32) and/or the rear handle group (33);

The handle unlocking mechanism (9) comprises an operating piece (91) arranged on the upper handle group (31), a split piece (92), a main traction rope (93) used for connecting the operating piece (91) with the middle part of the split piece (92), a front traction rope (94) used for connecting one end of the split piece (92) with the front limiting mechanism (7), and a rear traction rope (95) used for connecting the other end of the split piece (92) with the rear limiting mechanism (8).

12. The anti-handle overoperation stroller of claim 11, wherein: the rear rotating tube (332) is provided with two positioning holes (3321), the rear limiting mechanism (8) comprises a limiting assembly (81) and a locking piece (82) which is matched with the two positioning holes (3321) to enable the rear handle group (33) to be positioned in an unfolding state or a shrinking state, and the rear traction rope (95) drives the locking piece (82) to withdraw from the positioning holes (3321) through the limiting assembly (81);

the locking mechanism (4) comprises a lower stop (45) arranged on the rear rotary tube (332) and an upper stop (46) arranged on the limiting assembly (81);

when the rear handle group (33) is positioned in a contracted state, the lower stop block (45) pushes against the upper stop block (46) so that the upper stop block (46) stops the locking piece (82) from exiting the positioning hole (3321).

13. The anti-handle overoperation stroller of claim 12, wherein: the locking mechanism (4) comprises a sliding piece (47) used for pulling the lower stop block (45) to move away from the upper stop block (46), and a yielding area (48) arranged on the rear side of the fixing seat (61), wherein the yielding area (48) yields the sliding piece (47) for the sliding piece (47) to move so as to relieve the pulling effect of the sliding piece (47) on the lower stop block (45), and the lower stop block (45) is ejected out from the upper stop block (46) under the action of a spring.

14. The anti-handle overoperation stroller of claim 13, wherein: the unlocking mechanism (5) comprises a limiting part (52) arranged on the front side of the fixed seat (61), and when the sliding piece (47) rotates along with the rotating piece (62) to correspond to the limiting part (52), the limiting part (52) pushes the sliding piece (47) to rotate so as to pull the lower stop block (45) and the upper stop block (46) to be separated from the pushing.

15. A stroller for preventing excessive handle operation according to claim 3 or 8, wherein: the handle mechanism (3) further comprises an upper handle group (31), the front telescopic pipe (321) and the rear telescopic pipe (331) are pivoted at the lower end of the upper handle group (31) together, and the locking mechanism (4) is used for locking the front handle group (32) or the rear handle group (33) on the rear side of the fixing seat (61) so as to limit the extension of the front handle group or the rear handle group.