CN210634621U - Baby carriage with seat capable of being reversed front and back - Google Patents

Abstract

The utility model discloses a baby carriage with a seat capable of being reversed front and back, which comprises a carriage frame and a seat capable of being reversed front and back relative to the carriage frame, wherein the carriage frame comprises a handle, a front foot and a back foot, the lower side of the handle is pivoted with the rear side of the front foot, the rear foot of the carriage frame is provided with a connecting seat for connecting the seat, a reversing device capable of positioning the seat in front or back direction is arranged between the seat and the connecting seat, the seat comprises a sitting part and a backrest with the lower end pivoted with the rear side of the sitting part, the backrest can rotate to a position where the included angle between the backrest and the upper end surface of the sitting part is more than 180 degrees, thereby the rotation of the handle and the front foot relative to the back foot can not be interfered no matter whether the seat is arranged in front or back direction, and the backrest can rotate to be close to the front foot or the back foot to a folding state, the whole folding material volume of the baby carriage is not influenced, therefore, the seat does not need to be detached when the baby carriage frame is folded, and the whole folding operation of the baby carriage is very simple and convenient.

Description

Baby carriage with seat capable of being reversed front and back

Technical Field

The utility model relates to an infant's product field especially relates to a perambulator.

Background

A stroller generally includes a frame and a seat mounted on the frame, wherein the frame is convertible between an unfolded state and a folded state. In order to increase the interaction between the child and the parents and to more conveniently see the condition of the child in real time, some seats are arranged in a front-back direction-changeable mode, namely, a connecting seat for connecting the seat is arranged on the frame, and then a direction-changing device which can enable the seat to be positioned in a front-direction arrangement or a rear-direction arrangement is arranged between the seat and the connecting seat, namely, the seat can be positioned in a front-direction, namely the seat is arranged in a front-direction arrangement, or the seat can be positioned in a rear-direction, namely the seat is arranged in a rear-direction arrangement through the direction.

Some seats on the market can reverse the perambulator from beginning to end, because the position relation of connecting seat on the frame and the design of seat itself for when will receive the frame, no matter the seat is setting up forward or setting backward, when will receive the frame, all must pull down the seat earlier, then with the frame after receiving the receipts together with the seat and receive, this kind of setting makes the whole operation of receiving of perambulator very troublesome.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a baby carriage that seat can commutate from beginning to end, and no matter its seat is preceding to placing or to placing backward, when closing the frame, need not pull down the seat all.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a perambulator of switching-over around seat can, it includes frame and one can be relative the seat that the switching-over set up around the frame, the frame includes handlebar hand, front foot, rear foot, handlebar hand downside and front foot rear side pin joint in the rear foot, be provided with the connecting seat that supplies the seat to connect on the frame, be provided with between seat and the connecting seat can with the seat is located relative frame forward to setting up or to the switching-over device who sets up behind, the connecting seat set up in on the rear foot, the seat include one take portion and lower extreme pin joint in taking the portion rear side lean against, just lean against can rotate to and take the portion up the contained angle between the up end and be greater than 180 degrees positions.

The seat is provided with a fixing seat, the outer side of the backrest is provided with an installation part, the installation part is located above the fixing seat, and a limiting device used for limiting the backrest rotation range is arranged between the installation part and the upper side of the fixing seat.

The limiting device comprises a limiting groove, a first spring and a limiting block, wherein the limiting groove is formed in the upper end of the fixing seat and extends upwards and forwards, the limiting groove can be connected with the limiting block of the installation part in a vertically movable mode, the first spring is arranged between the limiting block and the installation seat and used for driving the limiting block to move downwards, and the lower end of the limiting block is inserted into the limiting groove downwards under the action of the first spring.

The limiting groove sets up the arc limiting groove that extends around to, the fixing base up end sets up the arcwall face that extends around, and is corresponding, the installation portion down the terminal surface also set up to be able with fixing base up end complex arcwall face, the installation portion down the terminal surface paste in the fixing base up end.

The mounting part is provided with an accommodating space, the upper end of the limiting part can be connected in the accommodating space in a relatively up-and-down moving mode, the lower end of the accommodating space is provided with a through hole for the lower end of the limiting part to pass through, and the first spring is arranged between the top end of the limiting part and the top wall of the accommodating space; the installation department including an organic whole in the installation department main part of back outside, connect in the enclosing cover in the installation department main part outside, be formed with between installation department main part and the outside accommodation space.

The seat is characterized in that the lower end of the backrest is pivoted to the inner side of the fixed seat, a backrest locking device used for limiting the relative rotation of the lower end of the backrest and the inner side of the installation part is arranged between the lower end of the backrest and the inner side of the installation part, a backrest unlocking device used for unlocking the backrest locking device is further arranged on the seat, and the backrest unlocking device and the limiting device are arranged on different positions of the seat.

The backrest locking device comprises a first tooth groove and a second tooth groove which are arranged on opposite sides of the fixed seat and the lower end of the backrest, a gear arranged between the first tooth groove and the second tooth groove, and a second spring, the second spring is arranged between the gear and the bottom wall of the first tooth groove or the second tooth groove, and under the action of the second spring, the gear is simultaneously meshed with the first tooth groove and the second tooth groove; the backrest unlocking device comprises an operating part, a driven part and a linkage part, wherein two ends of the linkage part are respectively connected with the driving part of the operating part, and the operating part is connected to the upper side of the backrest; the second spring is arranged between the bottom wall of the first tooth socket and the gear, the driven piece can be arranged between the gear and the bottom wall of the second tooth socket in a relatively rotating and relatively moving manner, and wave-shaped grooves and wave-shaped bulges which are matched with each other are respectively arranged on the opposite sides of the driven piece and the bottom wall of the second tooth socket; or, the backrest lock releasing device is provided with a button, the button can be connected to the inner side of the lower end of the backrest in a relatively left-right moving mode, one end of the button is inserted into the second tooth groove, the gear is meshed with the first tooth groove and the second tooth groove simultaneously under the action of the second spring, and the gear is abutted against one end, inserted into the second tooth groove, of the button.

The frame comprises a left side bracket and a right side bracket, each side bracket comprises the handle, a front foot and a rear foot, and the rear foot of each side bracket is provided with the connecting seat; the left side and the right side of the seat are respectively provided with the fixing seats, the outer sides of the fixing seats on the left side and the right side of the seat are respectively connected with the connecting seats on the supports on the left side and the right side, and the reversing devices are arranged in two groups and are respectively arranged between the outer sides of the fixing seats on the left side and the right side of the seat and the connecting seats on the supports on the left side and the right.

The connecting seat is provided with an accommodating groove which is provided with an upward opening and used for inserting the outer side of the fixing seat, a driving groove which extends up and down is arranged in the outer side of each fixing seat, and through holes are respectively arranged on the front side wall and the rear side wall of each driving groove; every a set of switching-over device all include two set up respectively in the locking hole of lateral wall around the storage tank, two interval settings around and can set up in relative back-and-forth movement ground in the locking piece of driving inslot, with two locking pieces are connected and can drive driving piece, a third spring of two locking piece relative movement, the third spring both ends support respectively lean on in two locking piece opposite sides around or the third spring set up in between driving piece and the fixing base, the driving piece can connect in with moving up and down relatively in the driving inslot, the fixing base outside is inserted in the storage tank under the effect of third spring, the one end that two locking pieces deviate from back and forth passes respectively in the locking hole that inserts the front and back of storage tank behind the through-hole.

The lower side of the driving piece is provided with two vertical ribs arranged at intervals, two oblique ribs extending obliquely in opposite directions from the lower ends of the two vertical walls respectively, correspondingly, the two locking blocks are provided with elongated slots extending forwards and backwards respectively, the lower ends of the opposite sides of the two locking blocks are provided with inclined planes respectively, the two vertical ribs of the driving piece penetrate through the elongated slots of the two locking blocks respectively downwards, and the inclined planes of the two locking blocks are matched with the two oblique ribs respectively; under the action of the third spring, the ends of the two locking blocks which are deviated from each other respectively penetrate through the through holes and then are inserted into the two locking holes of the accommodating groove.

Compared with the prior art, the utility model, following beneficial effect has:

1. because the rider and the front foot of the frame are pivoted to the rear foot, when the frame is folded, the rider and the front foot relatively rotate to be close to the rear foot, and the connecting seat detachably connected with the seat is arranged on the rear foot, so that the rotation of the rider and the front foot relative to the rear foot cannot be interfered no matter the seat is placed forwards or backwards; furthermore, because the backrest can rotate to a position where the included angle between the backrest and the upper end surface of the sitting part is larger than 180 degrees, namely, when the seat is arranged in the forward direction, the backrest can rotate towards the direction of the rear foot until the backrest cannot rotate, and when the seat is arranged in the backward direction, the backrest can rotate towards the direction of the front foot until the backrest cannot rotate, so that the backrest can rotate to a folding position close to the front foot or/and the rear foot no matter the seat is arranged in the forward direction or the backward direction, the folded volume of the baby carriage is not influenced, and the seat does not need to be detached when the frame is folded;

2. the limiting device is arranged between the mounting seat of the seat backrest and the fixing seat of the sitting part, and the backrest unlocking device for unlocking the backrest locking device and the limiting device are arranged at different positions of the seat, so that when the seat backrest is rotated to form an included angle with the upper end surface of the sitting part, the backrest unlocking device and the limiting device must be operated in sequence and respectively operated at different positions, and thus, the backrest is prevented from being operated by mistake to rotate to a folding state under the use state of the seat, children on the seat are prevented from being injured, and the use safety is improved;

3. the utility model discloses a seat, including the fixing base, the fixing base upside, the fixing base of seat back, the fixing base upside of portion of taking a seat, the mount pad sets up in the fixing base upside, stop device sets up between the mount pad that the seat backed and the fixing base upside of portion of sitting, it is inboard in the fixing base to lean against the lower extreme pin joint, lean against locking mechanical system set up in between the fixing base is inboard and the lower extreme of leaning against, and the fixing base outside with connecting seat releasable connection, switching-over device set up between the fixing base outside and connecting seat, this kind of setting for most mechanism all concentrates on the fixing base of seat, thereby.

Drawings

Fig. 1 is a schematic view of the unfolded plan of the stroller of the present invention with the seat in the forward configuration;

FIG. 2 is a schematic perspective view of the stroller of the present invention in a forward position;

FIG. 3 is a schematic view of the stroller of the present invention in an expanded plan view with the seat in a rearward disposition;

FIG. 4 is a schematic view of the stroller seat of the present invention;

fig. 5 is a first exploded view of the stroller seat of the present invention;

FIG. 6 is an enlarged schematic view of portion A of FIG. 4;

fig. 7 is an exploded view of the stroller spacing device of the present invention;

fig. 8 is a first schematic diagram of the locking device for a backrest of a baby carriage according to the present invention;

fig. 9 is a second schematic diagram of the stroller backrest locking device according to the present invention;

fig. 10 is a schematic plan view of the stroller of the present invention folded when the seat is in the forward position;

fig. 11 is a perspective view of the stroller of the present invention folded when the seat is in the forward position;

fig. 12 is a schematic plan view of the stroller of the present invention folded when the seat is in a backward orientation;

fig. 13 is a partial perspective view of the stroller of the present invention;

FIG. 14 is a first schematic view of an explosion magnification according to section B of FIG. 13;

FIG. 15 is a second schematic view of the explosion magnification according to section B of FIG. 13;

fig. 16 is a first schematic exploded view of the reversing device of the stroller of the present invention;

fig. 17 is an exploded view of the reversing device of the stroller of the present invention.

Detailed Description

As shown in fig. 1 to 3, the utility model discloses but seat baby carriage of seat switching-over from beginning to end includes frame 1 and the seat 2 that the frame 1 front-back switching-over set up relatively, frame 1 includes handlebar 11, preceding leg 12, back foot 13, handlebar 11 downside and preceding leg 12 rear side pivoted in back foot 13, be provided with the connecting seat 14 that supplies seat 2 to connect on the frame 1, be provided with between seat 2 and the connecting seat 14 can with seat 2 is located the preceding switching-over device 3 that sets up or backward setting of relative frame 1, connecting seat 14 set up in on the back foot 13, seat 2 include a seat portion 21 and lower extreme pivoted in the back 22 of seat portion 21 rear side, just back 22 can rotate to and seat portion 21 up end between the contained angle be greater than 180 degrees position.

As shown in fig. 4 to 7, a fixing seat 23 is provided on the sitting portion 21, an installation portion 24 is provided outside the backrest 22, the installation portion 24 is located above the fixing seat 23, and a limiting device for limiting the rotation range of the backrest 22 is provided between the installation portion 24 and the upside of the fixing seat 23. The limiting device comprises a limiting groove 231, a limiting part 41 and a first spring (not shown), wherein the limiting groove 231 is arranged at the upper end of the fixing seat 23, the limiting groove 231 extends upwards and forwards, the limiting part 41 is connected to the installation part 24 in a vertically movable manner, the first spring (not shown) is arranged between the limiting part 41 and the installation seat 131 and is used for driving the limiting part 41 to move downwards, and the lower end of the limiting part 41 is inserted into the limiting groove 231 downwards under the action of the first spring.

The installation portion 24 is provided with an accommodating space 241, the upper end of the limiting member 41 can be relatively connected to the accommodating space 241 in a vertically moving manner, the lower end of the accommodating space 241 is provided with a via hole 242 through which the lower end of the limiting member 41 passes, and the first spring is arranged between the top end of the limiting member 41 and the top wall of the accommodating space 241. Under the action of the first spring, the lower end of the limiting member 41 extends out of the lower end of the through hole 242 and then is inserted into the limiting groove 231.

In this embodiment, the mounting portion 24 includes a mounting portion main body 243 integrally formed at an outer side of the backrest 22, and an outer cover 244 connected to an outer side of the mounting portion main body 243, and the accommodating space 241 is formed between the mounting portion main body 243 and the outer cover 244. So set up, be convenient for the installation of locating part 41 and first spring.

The enclosing cover 244 outside is provided with dodges the hole 2441, the locating part 41 upside is provided with operating space 411 in the position that corresponds dodges the hole to the operator can pass with the finger stretch into operating space 411 behind the dodging hole 2441, again up carry locating part 41, thereby can make locating part 41 upwards remove its lower extreme and break away from spacing groove 231 realizes stop device's unblock. The operation space 411 may be in a groove shape, or may be in a hollow hole shape or other shapes suitable for finger operation.

In this embodiment, the position-limiting member 41 includes an upper operating portion 412 and a lower position-limiting portion 413, the operating portion 412 is disposed in the accommodating space 241 to be capable of moving up and down relatively, and the lower end of the position-limiting portion 413 passes through the through hole 242 and is inserted into the position-limiting groove 231. The operation part 412 and the limiting part 413 may be integrally formed, or may be connected together by a connector such as a screw.

Preferably, the limiting groove 231 is an arc-shaped limiting groove extending in the front and back direction, the upper end face of the fixing seat 23 is an arc-shaped face 230 extending in the front and back direction, correspondingly, the lower end face of the installation part 24 is also arranged to be capable of being matched with the upper end face of the fixing seat 23, and the lower end face of the installation part 24 is attached to the upper end face of the fixing seat 23. So set up, at the rotatory in-process around backrest 22, the terminal surface can laminate in fixing base 23 up end always under the installation department 24 to avoid the tong clearance to lead to the fact the injury to the child of sitting in seat 2.

Referring to fig. 8 and 9, the lower end of the backrest 22 is pivotally connected to the inner side of the mounting portion 24, a backrest locking device 5 for limiting the relative rotation between the lower end of the backrest 22 and the inner side of the mounting portion 24 is disposed between the lower end of the backrest 22 and the inner side of the mounting portion 24, the backrest locking device 5 includes a first tooth groove 232, a second tooth groove 221 disposed on the fixing seat 23 and the opposite side of the lower end of the backrest 22, a gear 51 disposed between the first tooth groove 232 and the second tooth groove 221, and a second spring 52 disposed between the gear 51 and the bottom wall of the first tooth groove 232 or the second tooth groove 221, under the action of the second spring 52, the gear 51 is simultaneously engaged with the first tooth groove 232 and the second tooth groove 221, and the backrest locking device 5 is in a locking state, so that the backrest 22 cannot rotate relative to the seating portion 21.

The seat 2 is also provided with a backrest unlocking device for unlocking the backrest locking device 5, and the backrest unlocking device and the limiting device are arranged on different positions of the seat. In this embodiment, the backrest release lock device includes an operating member 61 (shown in fig. 4), a driven member 62, and a linkage member (not shown, the linkage member may be configured as a steel wire or other similar component) having two ends respectively connected to the driving member of the operating member 61, wherein the operating member 61 is connected to the upper side of the backrest 22; the second spring 52 is disposed between the bottom wall of the first tooth slot 232 and the gear 51, the follower 62 is disposed between the gear 51 and the bottom wall of the second tooth slot 221 in a relatively rotatable and relatively movable manner, and the opposite sides of the bottom walls of the follower 62 and the second tooth slot 221 are respectively provided with a wavy groove 621 and a wavy protrusion 2211 which are matched with each other. When the operating member 61 is operated, the steel wire is pulled upwards to drive the driven member 62 to rotate, and under the cooperation of the wavy protrusion 2211 and the wavy groove 621, the driven member 62 moves away from the bottom wall of the first tooth slot 232, so as to push the gear 51 to move towards the first tooth slot 232 and disengage from the second tooth slot 221, thereby unlocking the backrest locking device 5.

In this embodiment, the backrest 22, the follower 62, the gear 51, the second spring 52 and the fixing base 23 are sequentially connected by a pivot, so as to pivot the above components together.

In other embodiments, the backrest release device may be a button (not shown) which is connected to the inner side of the lower end of the backrest 22 in a relatively left-right movement manner, and one end of the button is inserted into the second tooth groove 221, under the action of the second spring 52, the gear 51 is simultaneously engaged with the first tooth groove 232 and the second tooth groove 221, and the gear 51 abuts against one end of the button inserted into the second tooth groove 221. When the backrest locking device 5 is to be unlocked, the push button is pressed to push the gear 51 to move in the direction of the first tooth groove 232 and disengage from the second tooth groove 221, thereby unlocking the backrest locking device 5.

When the stroller is in the unfolded state, the backrest 22 can be rotated back and forth by operating the backrest lock release device to release the backrest lock device 5, during the rotation of the backrest 22, the lower end of the limiting member 41 slides in the limiting groove 231, and when the limiting member 41 abuts against the front side wall or the rear side wall of the limiting groove 231, the backrest 22 cannot rotate any more. Therefore, the backrest 22 is limited to be adjustable in angle within a certain angle range by the arrangement of the limiting device.

When the stroller is to be folded, the backrest 22 can be rotated toward the ground before the frame 1 is folded (i.e. the backrest 22 is rotated backward when the seat 2 is disposed forward; and the backrest 22 is rotated forward when the seat 2 is disposed backward). Specifically, the backrest locking device 5 is unlocked by operating the backrest unlocking device, then the backrest 22 is rotated towards the direction towards the ground, when the backrest 22 is rotated until the limiting block abuts against the side wall of the arc-shaped limiting groove 231, the backrest 22 cannot rotate any more, at the moment, the limiting part 41 is moved upwards, the lower end of the limiting part 41 is separated from the limiting groove 231, at the moment, the backrest 22 can be rotated towards the direction of the ground again until the backrest 22 abuts against the front leg 12 or the rear leg 13 and cannot rotate any more; then, the stroller frame 1 is folded until the handle 11, the front leg 12 and the rear leg 13 rotate to approach each other, the backrest 22 also approaches the front leg 12 or the rear leg 13 to be in the folded state, and the stroller is in the folded state (as shown in fig. 10, 11 and 12). Or the frame 1 can be folded first and then the backrest 22 can be rotated.

Therefore, the limiting device is equivalent to a second safety lock when the backrest 22 is folded, the backrest 22 can be folded in a rotating mode only by unlocking the second safety lock, and the limiting device and the backrest unlocking device are arranged on different positions of the seat, so that two operation actions are required to be carried out when the backrest 22 is rotated to the folded state, and thus, the situation that the backrest 22 rotates to an included angle between the backrest 22 and the upper end face of the sitting portion 21 to be larger than 180 degrees due to misoperation of the backrest unlocking device under the use state of the seat 2 can be prevented, children in the seat 2 are prevented from being injured, and safety is greatly improved.

The teeth of the gear 51 may be configured to have the same size, and correspondingly, the grooves of the first tooth groove and the second tooth groove are also configured to have the same size, so that no matter what angle the backrest rotates, after the operation of the backrest release device is released, as long as the teeth and the grooves are paired up, the gear 51 can be engaged with the first tooth groove 232 and the second tooth groove 221 at the same time again under the action of the second spring 52, that is, the backrest 22 is locked at the inclination angle of the opposite sitting portion 21, thereby realizing the backrest angle adjustment. In order to facilitate the operation of the backrest rotating and folding, it can be configured that when the backrest is rotated to a position where it cannot rotate, i.e. the limiting block abuts against the side wall of the arc-shaped limiting groove 231, the gear 51 is only engaged with the first tooth groove 232, i.e. the backrest 22 can rotate relative to the seat 21, so that after the limiting device is unlocked, the backrest 22 can automatically rotate towards the ground, thereby avoiding the need to operate the backrest unlocking device all the time during the backrest rotating and folding process. The teeth of the gear 51 may be a combination of one or more large teeth and a plurality of small teeth with the same size, and correspondingly, the first tooth groove and the second tooth groove are provided with a plurality of large grooves capable of being matched with the large teeth, so that the gear 51 can be simultaneously meshed with the first tooth groove 232 and the second tooth groove 221 to position the backrest 22 at the inclined angle only when the large teeth correspond to one of the large grooves, and when the large teeth do not correspond to the large grooves, the backrest 22 is still in a state of being capable of rotating relative to the seat 21 even if the backrest release device is released.

The left side and the right side of the sitting part 21 are provided with the fixing seats 23, and the limiting devices can be arranged in a left group and a right group, or can be arranged in one group on one side of the seat 2.

Still be provided with on seat 2 and prevent slow-witted device, just prevent that slow-witted device is set up to: when the seat 2 is set forward, the lower end of the limiting member 41 abuts against the front side wall of the limiting groove 231, and the backrest cannot rotate forward after the limiting device and the backrest locking device are unlocked.

In this embodiment, the seat 2 is further provided with a front blocking member 7, and the front blocking member 7 may be an armrest or a dinner plate. The rear ends of the left and right sides of the front blocking member 7 are respectively connected to the front sides of the left and right side fixing seats 23 of the sitting portion 21. With this arrangement, even after the seat locking device 5 and the position limiting device are unlocked, the backrest 22 cannot rotate toward the sitting portion 21 and approach the sitting portion, because the installation portion 24 of the backrest 22 is blocked by the front blocking member 7 when the backrest 22 rotates, the operator can only rotate the backrest 22 toward the ground to rotate the backrest 22 to approach the front legs 12 and the rear legs 13, thereby completing the folding of the stroller. In this way, the positioning of the front barrier 7 is formed as a foolproof design. In other embodiments, a blocking member may also be directly disposed on the upper end of the fixing seat 23 to extend upward, and the blocking member is configured such that when the lower end of the limiting member 41 abuts against the front sidewall of the limiting groove 231 when the seat 2 is disposed in the forward direction, the front end of the mounting portion 24 abuts against the rear end of the blocking member. The blocking element is thus also formed as a foolproof design. In other embodiments, the position-limiting member 41 and the position-limiting groove 231 are configured such that when the seat 2 is disposed in the forward direction, and the lower end of the position-limiting member 41 abuts against the front sidewall of the position-limiting groove, the position-limiting member 41 is moved upward, and the lower end of the position-limiting member 41 cannot be disengaged from the position-limiting groove 231; when the lower end of the limiting member 41 abuts against the rear side wall of the limiting groove, the limiting member 41 is moved upwards, and the lower end of the limiting member 41 can be separated from the limiting groove 231. With such an arrangement, when the backrest is rotated and folded, the backrest 22 can only be rotated towards the ground, but the backrest 22 cannot be rotated towards the sitting portion 21, thereby forming a foolproof device.

In this embodiment, the frame 1 includes left and right side brackets 10, each side bracket 10 includes the rider 11, a front leg 12 and a rear leg 13, and the rear leg 13 of each side bracket 10 is provided with the connecting seat 14; the outer sides of the left and right fixed seats of the seat are respectively connected with the connecting seats on the left and right brackets, and the reversing devices 3 are arranged in two groups and respectively arranged between the outer sides of the left and right fixed seats of the seat and the connecting seats on the left and right brackets.

Referring to fig. 13 to 17, in this embodiment, the connecting seat 14 is provided with an accommodating groove 141 which is provided with an upward opening and into which the outer side of the fixing seat 23 is inserted, a driving groove 233 which extends up and down is provided in the outer side of each fixing seat 23, and the front and rear side walls of the driving groove 233 are respectively provided with a through hole; each set of the reversing device 3 includes two locking holes 142 respectively disposed on the front and rear side walls of the accommodating groove 141, two locking blocks 31 disposed at intervals in the front and rear direction and disposed in the driving groove 233 in a relatively movable manner, a driving member 32 connected to the two locking blocks 31 and capable of driving the two locking blocks 31 to move relatively, and a third spring (not shown), both ends of the third spring respectively abut against the opposite sides of the front and rear locking blocks 31 or the third spring is disposed between the driving member 32 and the fixing seat 23, the driving member 32 is connected to the driving groove 233 in a relatively movable manner in the up and down direction, the outer side of the fixing seat 23 is inserted into the accommodating groove 141, under the action of the third spring, the end of the front and rear locking blocks 31 departing from each other is inserted into the front and rear locking holes 142 of the accommodating groove 141 after passing through the through hole, respectively, and the seat 2 cannot move relative to the frame 1, so that the seat 2 is positioned in the oriented state. Preferably, an installation groove 234 extending forward and backward is further disposed in the outer side of the fixing seat 23, the installation groove 234 is communicated with the driving groove 233, the front side and the rear side of the installation groove 234 are respectively communicated with the through holes of the front side wall and the rear side wall of the driving groove 233, and the two locking blocks 31 are disposed in the installation groove 233 in a manner of being capable of moving forward and backward relatively. In this way, a guiding action can be given to the movement of the locking block 31.

Preferably, two vertical ribs 321 and two oblique ribs 322 are disposed at an interval on a lower side of the driving member 32, the two oblique ribs 322 extend obliquely from lower ends of the two vertical walls to opposite directions, correspondingly, the two locking blocks 31 are respectively provided with elongated slots 311 extending forward and backward, a lower end of one side of the two locking blocks 31 opposite to each other is respectively provided with an inclined surface 312, the two vertical ribs 321 of the driving member 32 respectively penetrate the elongated slots 311 of the two locking blocks 31 downward, the inclined surfaces 312 of the two locking blocks 31 are respectively matched with the two oblique ribs 322, so that the two oblique ribs 322 form driving inclined surfaces, the inclined surfaces of the two locking blocks 31 form driven inclined surfaces, and the driving member 32 and the locking blocks 31 form an inclined surface and inclined surface matching manner. Under the action of the third spring, the two locking blocks 31 move in the opposite directions, when the locking blocks move to a certain distance, the ends of the two locking blocks 31 that are away from each other are respectively inserted into the two locking holes 142 of the accommodating groove 141, and the side walls of the long grooves 311 of the two locking blocks are respectively abutted against the two vertical ribs 321, so that the two locking blocks 31 cannot move any more.

Preferably, the lower end of the driving member 32 is further provided with a connecting section 324 having a front end and a rear end connected to the lower ends of the two diagonal ribs 322, respectively, so as to prevent the diagonal ribs 322 from being separated from the locking block inclined surfaces 312 when the driving member 32 is moved upwards.

The third spring can be arranged between the top end of the driving member 32 and the top wall of the driving groove 233, so that under the action of the third spring, the driving member 32 keeps the trend of moving downwards at any time, and through the matching of the driving inclined surface and the driven inclined surface, the two locking blocks 31 also keep the trend of moving towards opposite directions at any time.

The third spring can also be arranged between the two locking blocks 31, so that under the action of the third spring, the two locking blocks 31 also keep the trend of moving towards opposite directions at any time, and the driving piece 32 keeps the trend of moving downwards at any time through the matching of the driving inclined plane and the driven inclined plane.

In this embodiment, an operation avoiding hole 235 is formed in the outer side of the fixing seat 23 (i.e., the side facing the connecting seat 14) to communicate with the driving groove 233, and an operation position 323 corresponding to the operation avoiding hole 235 is formed on the upper side of the driving member 32, where the operation position may be a hollow hole or a recessed groove. When the seat 2 is to be reversed, the fingers of the operator pass through the operation avoiding holes 235 and then extend into the driving grooves 233 of the fixing seat 23, and are buckled into the operation positions of the driving pieces 32, the driving pieces 32 are moved upwards, the two locking pieces 31 are simultaneously driven to move relatively close under the interaction of the driving inclined surfaces of the driving pieces 32 and the driven inclined surfaces of the locking pieces 31, so that the ends of the two locking pieces 31, which are opposite to each other, are respectively disengaged from the locking holes 142, and at the moment, the seat 2 can be moved upwards to be disengaged from the connecting seat 14; then, the seat 2 is rotated by 180 degrees, the outer sides of the fixing seats 23 on the left and right sides of the seat 2 are inserted into the accommodating grooves 141 of the rear foot connecting seats 14 of the left and right side brackets of the frame, the two locking blocks 31 are moved again and inserted into the corresponding locking holes 142 under the action of the third springs, and the seat 2 is positioned in the direction of the orientation. Thus, the reversing operation of the seat 2 is simple and convenient. Preferably, the sides of the two locking blocks 31 facing away from each other are respectively provided with an inclined surface, so that the fixing seat 23 of the seat can be conveniently inserted into the receiving groove 141 of the connecting seat 14.

In other embodiments, the fixing seat 23 may be provided with an operation avoiding hole extending up and down on one side facing the connecting seat 14, the operation avoiding hole is communicated with the driving groove 233, the driving member 32 extends toward one side facing the connecting seat 14 to be provided with an operation end, and an outer end of the operation end extends out of the operation avoiding hole, so that the operation end is moved up to drive the two locking blocks 31 to move, i.e., the operation is convenient.

In this embodiment, preferably, the fixing base 23 includes a base 236 and a cover plate 237 connected to an outer side of the base 236, the driving slot 233 is formed between the base 236 and the cover plate 237, the limiting slot 231 and the first tooth slot 232 are disposed on the base 236, and the driving avoiding hole 235 is disposed on an outer side of the cover plate 237. Preferably, the base 236 is integrally formed with the seat 21.

The rear leg 13 is fixedly connected with a mounting seat 131, and the connecting seat 14 is relatively fixedly connected with the mounting seat 131.

In this embodiment, the connecting seat 14 and the mounting seat 131 are pivotally connected through a pivot, and a positioning mechanism for limiting the relative rotation between the connecting seat 14 and the mounting seat 131 is disposed therebetween. The positioning mechanism includes a positioning flange 144 and a positioning groove 132 respectively disposed on opposite sides of the connecting seat 14 and the mounting seat 131, and the positioning flange 144 is inserted into the positioning groove 132, so that the fixing seat 23 and the fixing seat 23 of the rear leg 13 cannot rotate relatively and are relatively fixed, that is, the fixing seat 23 and the rear leg 13 are relatively fixed. The positioning flange 144 and the positioning groove 132 can be selected to have any feasible shape, and the positioning mechanism can also have any feasible structure.

In the above orientation definition, the forward-facing arrangement of the seat 2 is used as a reference, the front, rear, left, right, up and down directions are defined based on the visual sense of a child sitting in the seat 2, and the opposite sides of the two fixed seats 23 of the seat are defined as the inner sides, and vice versa.

Claims (15)

1. The utility model provides a baby carriage that seat can commutate from beginning to end, its includes the frame and one can be relative the seat that the frame commutates the setting from beginning to end, the frame includes handlebar hand, front foot, rear foot, handlebar hand downside and front foot rear side pivot connect in rear foot, its characterized in that: be provided with the connecting seat that supplies the seat to connect on the frame, be provided with between seat and the connecting seat can with the seat is located relative frame and to the switching-over device that sets up or to setting up backward, the connecting seat set up in on the back foot, the seat include one take portion and lower extreme pin joint in take the portion rear side lean on, just lean on can rotate to and take the portion up end between the contained angle be greater than 180 degrees positions.

2. The stroller of claim 1, wherein the seat is reversible: the seat is provided with a fixing seat, the outer side of the backrest is provided with an installation part, the installation part is located above the fixing seat, and a limiting device used for limiting the backrest rotation range is arranged between the installation part and the upper side of the fixing seat.

3. The stroller of claim 2, wherein the seat is reversible: the limiting device comprises a limiting groove, a first spring and a limiting block, wherein the limiting groove is formed in the upper end of the fixing seat and extends upwards and forwards, the limiting groove can be connected with the limiting block of the installation part in a vertically movable mode, the first spring is arranged between the limiting block and the installation seat and used for driving the limiting block to move downwards, and the lower end of the limiting block is inserted into the limiting groove downwards under the action of the first spring.

4. The stroller of claim 3, wherein the seat is reversible: the limiting groove sets up the arc limiting groove that extends around to, the fixing base up end sets up the arcwall face that extends around, and is corresponding, the installation portion down the terminal surface also set up to be able with fixing base up end complex arcwall face, the installation portion down the terminal surface paste in the fixing base up end.

5. The stroller of claim 4, wherein the seat is reversible: the installation department is provided with the accommodation space, locating part upper end relatively connect with reciprocating in the accommodation space, just the accommodation space lower extreme is provided with the confession the via hole that the locating part lower extreme passes through, first spring set up in between locating part top and the accommodation space roof.

6. The stroller of claim 5, wherein the seat is reversible: the installation department including an organic whole in the installation department main part of back outside, connect in the enclosing cover in the installation department main part outside, be formed with between installation department main part and the outside accommodation space.

7. The stroller of claim 2 or 3 or 4 or 5 or 6, wherein the seat is reversible, and wherein: the seat is characterized in that the lower end of the backrest is pivoted to the inner side of the fixed seat, a backrest locking device used for limiting the relative rotation of the lower end of the backrest and the inner side of the installation part is arranged between the lower end of the backrest and the inner side of the installation part, a backrest unlocking device used for unlocking the backrest locking device is further arranged on the seat, and the backrest unlocking device and the limiting device are arranged on different positions of the seat.

8. The stroller of claim 7, wherein the seat is reversible: the backrest locking device comprises a first tooth groove and a second tooth groove which are arranged on the opposite sides of the lower end of the backrest and the fixed seat respectively, a gear arranged between the first tooth groove and the second tooth groove, and a second spring, wherein the second spring is arranged between the gear and the bottom wall of the first tooth groove or the second tooth groove, and under the action of the second spring, the gear is meshed with the first tooth groove and the second tooth groove simultaneously.

9. The stroller of claim 8, wherein the seat is reversible: the backrest unlocking device comprises an operating part, a driven part and a linkage part, wherein two ends of the linkage part are respectively connected with the driving part of the operating part, and the operating part is connected to the upper side of the backrest; the second spring is arranged between the bottom wall of the first tooth socket and the gear, the driven piece can be arranged between the gear and the bottom wall of the second tooth socket in a relatively rotating and relatively moving manner, and wave-shaped grooves and wave-shaped bulges which are matched with each other are respectively arranged on the opposite sides of the driven piece and the bottom wall of the second tooth socket; or the backrest lock releasing device is provided with a button, the button can be connected to the inner side of the lower end of the backrest in a relatively left-right moving mode, one end of the button is inserted into the second tooth groove, and the gear is abutted to one end, inserted into the second tooth groove, of the button.

10. The stroller of claim 7, wherein the seat is reversible: the frame comprises a left side bracket and a right side bracket, each side bracket comprises the handle, a front foot and a rear foot, and the rear foot of each side bracket is provided with the connecting seat; the left side and the right side of the seat are respectively provided with the fixing seats, the outer sides of the fixing seats on the left side and the right side of the seat are respectively connected with the connecting seats on the supports on the left side and the right side, and the reversing devices are arranged in two groups and are respectively arranged between the outer sides of the fixing seats on the left side and the right side of the seat and the connecting seats on the supports on the left side and the right.

11. The stroller of any of claims 2 to 6, 8, and 9, wherein the seat is reversible: the frame comprises a left side bracket and a right side bracket, each side bracket comprises the handle, a front foot and a rear foot, and the rear foot of each side bracket is provided with the connecting seat; the left side and the right side of the seat are respectively provided with the fixing seats, the outer sides of the fixing seats on the left side and the right side of the seat are respectively connected with the connecting seats on the supports on the left side and the right side, and the reversing devices are arranged in two groups and are respectively arranged between the outer sides of the fixing seats on the left side and the right side of the seat and the connecting seats on the supports on the left side and the right.

12. The stroller of claim 10, wherein the seat is reversible: the connecting seat is provided with an accommodating groove which is provided with an upward opening and used for inserting the outer side of the fixing seat, a driving groove which extends up and down is arranged in the outer side of each fixing seat, and through holes are respectively arranged on the front side wall and the rear side wall of each driving groove; every a set of switching-over device all include two set up respectively in the locking hole of lateral wall around the storage tank, two interval settings around and can set up in relative back-and-forth movement ground in the locking piece of driving inslot, with two locking pieces are connected and can drive driving piece, a third spring of two locking piece relative movement, the third spring both ends support respectively lean on in two locking piece opposite sides around or the third spring set up in between driving piece and the fixing base, the driving piece can connect in with moving up and down relatively in the driving inslot, the fixing base outside is inserted in the storage tank under the effect of third spring, the one end that two locking pieces deviate from back and forth passes respectively in the locking hole that inserts the front and back of storage tank behind the through-hole.

13. The stroller of claim 12, wherein the seat is reversible: the lower side of the driving piece is provided with two vertical ribs arranged at intervals, two oblique ribs extending obliquely in opposite directions from the lower ends of the two vertical walls respectively, correspondingly, the two locking blocks are provided with elongated slots extending forwards and backwards respectively, the lower ends of the opposite sides of the two locking blocks are provided with inclined planes respectively, the two vertical ribs of the driving piece penetrate through the elongated slots of the two locking blocks respectively downwards, and the inclined planes of the two locking blocks are matched with the two oblique ribs respectively; under the action of the third spring, the ends of the two locking blocks which are deviated from each other respectively penetrate through the through holes and then are inserted into the two locking holes of the accommodating groove.

14. The stroller of claim 11, wherein the seat is reversible: the connecting seat is provided with an accommodating groove which is provided with an upward opening and used for inserting the outer side of the fixing seat, a driving groove which extends up and down is arranged in the outer side of each fixing seat, and through holes are respectively arranged on the front side wall and the rear side wall of each driving groove; every a set of switching-over device all include two set up respectively in the locking hole of lateral wall around the storage tank, two interval settings around and can set up in relative back-and-forth movement ground in the locking piece of driving inslot, with two locking pieces are connected and can drive driving piece, a third spring of two locking piece relative movement, the third spring both ends support respectively lean on in two locking piece opposite sides around or the third spring set up in between driving piece and the fixing base, the driving piece can connect in with moving up and down relatively in the driving inslot, the fixing base outside is inserted in the storage tank under the effect of third spring, the one end that two locking pieces deviate from back and forth passes respectively in the locking hole that inserts the front and back of storage tank behind the through-hole.

15. The stroller of claim 14, wherein the seat is reversible: the lower side of the driving piece is provided with two vertical ribs arranged at intervals, two oblique ribs extending obliquely in opposite directions from the lower ends of the two vertical walls respectively, correspondingly, the two locking blocks are provided with elongated slots extending forwards and backwards respectively, the lower ends of the opposite sides of the two locking blocks are provided with inclined planes respectively, the two vertical ribs of the driving piece penetrate through the elongated slots of the two locking blocks respectively downwards, and the inclined planes of the two locking blocks are matched with the two oblique ribs respectively; under the action of the third spring, the ends of the two locking blocks which are deviated from each other respectively penetrate through the through holes and then are inserted into the two locking holes of the accommodating groove.

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