CN212709630U

CN212709630U - Seat easy and convenient to fold and operate and baby carriage with same

Info

Publication number: CN212709630U
Application number: CN202020964132.7U
Authority: CN
Inventors: 彭水毅; 祝军旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-03-16
Anticipated expiration: 2030-05-28

Abstract

The utility model discloses a seat easy and convenient to fold and operate and a baby carriage provided with the seat, the seat comprises a sitting part, a handrail with the lower side pivoted on the back of the sitting part and the rear side pivoted with the rear side of the sitting part, a back locking mechanism for limiting the relative rotation of the back and the sitting part is arranged between the lower side of the back and the rear side of the sitting part, a handrail locking mechanism for limiting the relative rotation of the back and the sitting part is arranged between the rear side of the handrail and the rear side of the sitting part, the handrail locking mechanism comprises a locking groove arranged at the rear side of the handrail and a locking piece arranged between the handrail and the sitting part in a relatively up-and-down moving way, when the upper side of the locking piece is clamped into the locking groove, the handrail can not rotate relative to the sitting part, the back locking mechanism is unlocked, the back leaning of the forward rotation can push the locking piece to move downwards to separate from the locking groove, thereby the handrail locking mechanism, thus, the folding operation of the seat is simple.

Description

Seat easy and convenient to fold and operate and baby carriage with same

Technical Field

The utility model relates to an infant product field especially relates to a folding easy and simple to handle's seat and be equipped with perambulator of this seat.

Background

A seat, especially a seat for a child, generally includes a seat portion, a backrest whose lower side is pivotally connected to the rear side of the seat portion, an armrest whose rear side is connected to the rear side of the seat portion or/and the lower side of the backrest, a backrest locking mechanism for limiting the rotation of the backrest and the seat portion is disposed between the lower side of the backrest and the rear side of the seat portion, when the seat is folded, the backrest locking mechanism is unlocked first, and then the backrest is rotated toward the seat portion until the backrest and the seat portion are relatively close to each other. As for the armrests, some are detachably connected with the sitting portion or/and the backrest, so that the armrests are detached after the backrest and the sitting portion are folded; the back rest locking mechanism and the armrest locking mechanism are unlocked twice in sequence when the seat is folded, so that the seat, the armrest and the back rest can be completely folded, and the folding operation of the whole seat is complicated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned shortcoming, provide a folding easy and simple to handle's seat and be equipped with perambulator of this seat, but leaning against of seat rotatory in-process unblock handrail locking mechanical system.

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

the utility model provides a seat that folding operation is simple and convenient, including riding portion, downside pin joint in back, the rear side of riding portion rear side with the handrail of riding portion rear side pin joint, be provided with between back downside and the riding portion rear side and be used for restricting both relative rotation's back locking mechanical system, be provided with between handrail rear side and the riding portion rear side and be used for restricting both relative rotation's handrail locking mechanical system, handrail locking mechanical system sets up including setting up in the locking groove of handrail rear side, can reciprocating relatively locking piece between handrail and the riding portion, when locking inslot is gone into to locking piece upside card, the handrail can not be relative the riding portion rotation, and the unblock is backed to locking mechanical system, and the back of rotating forward can promote the locking piece and move down and break away from the locking groove to handrail locking mechanical system unblock.

The lower end of the backrest is provided with a left backrest pivoting seat and a right backrest pivoting seat; the lower side of the fixing seat is fixedly connected with the sitting part, the two backrest pin-joint seats are respectively pin-jointed at the left end and the right end of the upper side of the fixing seat, and the rear sides of the left side and the right side of the handrail are respectively pin-jointed at the outer sides of the two backrest pin-joint seats.

The middle of the rear side of the sitting part is provided with a first accommodating groove which is sunken downwards, and the lower side of the fixing seat is relatively and fixedly arranged in the first accommodating groove.

The locking piece includes a main part, certainly main part upper end up extended driven part and locking portion, just driven part and locking portion interval set up, when locking groove was gone into to the locking portion card, handrail locking mechanical system was in the locking state.

The outer side of the backrest pivoting seat is provided with a driving groove with a downward opening, when the locking part is clamped into the locking groove, the driven part is positioned in the driving groove, and the front-back width of the driving groove is greater than the front-back width of the driven part; the front side of the driven part is provided with a first driven inclined surface, and correspondingly, the front side wall of the driving groove is provided with a first driving inclined surface.

A second accommodating groove which is sunken downwards is further formed in the rear side of the sitting part, and the locking piece main body can be arranged in the second accommodating groove in a relatively up-and-down moving mode; the armrest locking mechanism further comprises a first spring, the first spring is arranged between the lower side of the locking piece main body and the bottom wall of the second accommodating groove, and under the action of the first spring, the driven part and the upper side of the locking piece can extend out of the second accommodating groove and respectively extend into the driving groove and the locking groove.

The backrest locking mechanism comprises a first tooth groove and a second tooth groove which are respectively arranged on the opposite sides of the backrest pivoting seat and the fixed seat, a gear which can be relatively arranged between the first tooth groove and the second tooth groove in a left-right moving mode, and a second spring which is arranged between the gear and the bottom wall of 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, so that the backrest and the sitting part cannot rotate relatively.

A backrest unlocking mechanism used for unlocking the backrest locking mechanism is arranged on the backrest; the backrest comprises a body and a cover plate connected to the front side of the body, the backrest pivoting seats are fixedly arranged on the left side and the right side of the lower end of the body, wiring grooves are formed between the body and the cover plate, and the lower ends of the wiring grooves are communicated with a first tooth groove of the backrest pivoting seats; the backrest locking mechanism comprises an operating part, a driving part and a steel wire, wherein the operating part can be connected between the body and the upper side of the cover plate in a relatively up-and-down moving mode, the driving part can rotate relatively and can be arranged in the first tooth groove in a relatively left-and-right moving mode, the upper end and the lower end of the steel wire are respectively connected with the operating part and the driving part, the steel wire is arranged in the wire distributing groove, the driving part is located between the bottom wall of the first tooth groove and the gear, the operating part is moved up, the steel wire is pulled to move up.

And the opposite sides of the bottom wall of the driving piece and the first tooth groove are respectively provided with a corresponding second driving inclined plane and a corresponding second driven inclined plane.

A baby carriage comprises the seat which is easy and convenient to fold.

The utility model has the advantages that:

the backrest locking mechanism is unlocked and then the backrest is rotated, so that the armrest can also rotate towards the sitting part towards the lower front part, namely, the backrest and the armrest are rotated to be close to the sitting part to fold the seat only by carrying out the unlocking operation of the backrest locking mechanism once, and thus the folding operation of the whole seat and the baby carriage with the seat is simple and convenient.

Drawings

Fig. 1 is a schematic plan view of the stroller of the present invention in an unfolded state;

FIG. 2 is a schematic perspective view of the chair of the present invention;

FIG. 3 is a schematic cross-sectional view of the seat of the present invention in the unfolded state, taken along the line A-A of FIG. 1;

FIG. 4 is an enlarged schematic view of section C of FIG. 3;

FIG. 5 is an exploded view according to part B of FIG. 2;

fig. 6 is a schematic view of the seat of the present invention in a deployed state (without showing the armrests);

FIG. 7 is an enlarged view of the portion D in FIG. 6;

FIG. 8 is an enlarged schematic view of section C from FIG. 3 after the backrest locking mechanism and the armrest locking mechanism are unlocked;

fig. 9 is another enlarged perspective view of the chair of the present invention;

fig. 10 is a first schematic view of the seat back according to the present invention;

fig. 11 is a second schematic diagram of the seat back according to the present invention;

fig. 12 is a schematic plan view of the stroller of the present invention in a folded state.

Detailed Description

As shown in fig. 1 to 8, the present invention discloses a seat 10 with simple folding operation, which comprises a sitting portion 1, a backrest 2 whose lower side is pivoted to the rear side of the sitting portion 1, a handrail 3 whose rear side is pivoted to the rear side of the sitting portion 1, a backrest locking mechanism for limiting the relative rotation between the lower side of the backrest 2 and the rear side of the sitting portion 1, a handrail locking mechanism for limiting the relative rotation between the rear side of the handrail 3 and the rear side of the sitting portion 1, wherein the handrail locking mechanism comprises a locking groove 31 arranged at the rear side of the handrail 3 and a locking piece 32 arranged between the handrail 3 and the sitting portion 1 and capable of moving up and down relatively, when the upper side of the locking piece 32 is clamped into the locking groove 31, the handrail 3 cannot rotate relative to the sitting portion 1, and the handrail locking mechanism is in a locking state; when the backrest 2 is rotated forward, the locking member 32 is pushed downward to be disengaged from the locking groove 31, so that the armrest locking mechanism is unlocked and the armrest 3 can be rotated relative to the seat 1.

The lower end of the backrest 2 is provided with a left backrest pivoting seat and a right backrest pivoting seat 21; the lower side of the fixing seat 11 is fixedly connected to the sitting portion 1, the two backrest pivoting seats 21 are respectively pivoted to the left and right ends of the upper side of the fixing seat 11, and the rear sides of the left and right sides of the armrest 3 are respectively pivoted to the outer sides of the two backrest pivoting seats 21 (as shown in fig. 2 and 5). In this embodiment, the rear sides of the armrests 3, the two backrest pivoting seats 21, and the upper side of the first fixing seat 11 are pivoted together by a pivot 110.

In this embodiment, a first receiving groove 12 recessed downward is formed in the middle of the rear side of the seat portion 1, and the lower side of the fixing seat 11 is relatively and fixedly disposed in the first receiving groove 12, that is, the lower side of the fixing seat 11 is disposed in the first receiving groove 12, and then the seat portion 1 and the fixing seat 11 are fixedly connected from the bottom of the seat portion 1 upward by screws or other similar connecting members.

The locking member 32 includes a main body 321, a driven portion 322 extending upward from the upper end of the main body 321, and a locking portion 323, the driven portion 322 and the locking portion 323 are disposed at an interval, when the locking portion 323 is inserted into the locking groove 31, the armrest locking mechanism is in a locked state, and the armrest 3 cannot rotate relative to the seating portion 1. When the backrest 2 rotates forward, the backrest pivot joint seat 21 drives the driven member to move downward, that is, the locking member 32 moves downward, so that the locking portion 323 is separated from the locking groove 31, the armrest locking mechanism is unlocked, and the armrest 3 can rotate relative to the seating portion 1.

A driving groove 211 which is opened downwards is arranged on the outer side of the backrest pivoting seat 21, when the locking part 323 is clamped in the locking groove 31, the driven part 322 is positioned in the driving groove 211, and the front-back width of the driving groove 211 is larger than the front-back width of the driven part 322; the front side of the driven part 322 is provided with a first driven inclined surface 3221, and correspondingly, the front side wall of the driving groove 211 is provided with a first driving inclined surface 2111 (as shown in fig. 6 and 7). When the backrest 2 is rotated forward to a predetermined angle, the first driving inclined surface 2111 at the front side of the driving groove 211 contacts the first driven inclined surface 3221 at the front side of the driven portion 322, the backrest 2 is rotated further, and the driven portion 322 moves downward, that is, the locking member 32 moves downward, due to the interaction between the first driving inclined surface 2111 and the first driven inclined surface 3221, so that the locking portion 323 is disengaged from the locking groove 31. (as shown in fig. 8).

A second receiving groove 13 which is recessed downwards is further formed in the rear side of the seat part 1, and the main body 321 of the locking piece 32 is placed in the second receiving groove 13 in a manner of relatively moving up and down; the armrest locking mechanism further includes a first spring 33, the first spring 33 is disposed between the lower side of the main body 321 of the locking element 32 and the bottom wall of the second receiving groove 13, under the action of the first spring 33, the driven portion 322 and the upper side of the locking portion 323 of the locking element 32 can extend out of the second receiving groove 13 and respectively extend into the driving groove 211 and the locking groove 31, the armrest locking mechanism is in a locked state, and the armrest 3 cannot rotate relative to the seating portion 1 (as shown in fig. 3 and 4).

In this embodiment, preferably, a frame-type guide sleeve 131 penetrating up and down is further disposed in the second accommodating groove 13, the second accommodating groove 13 includes an upper accommodating groove and a lower accommodating groove, and a width of the upper accommodating groove is greater than that of the lower accommodating groove, so that a step is formed between the upper accommodating groove and the lower accommodating groove, and a lower end of the guide sleeve 131 is disposed on the step. The locking member 32 moves up and down in the guide sleeve 131, so that the movement is smoother and the movement position is more determined.

In the present embodiment, the armrest locking mechanism is provided between at least the rear side of one side of the armrest 3 and the seating portion 1, that is, the armrest locking mechanism is not provided between the rear side of the other side of the armrest 3 and the seating portion 1, so that the armrest 3 can be rotated after the armrest locking mechanism on one side is unlocked. In the present embodiment, the armrest locking mechanism is provided between the rear side of both sides of the armrest 3 and the seating portion 1, so that the locking is more stable.

The backrest locking mechanism is disposed between at least one of the backrest pivoting seats 21 and the fixed seat 11, and includes a first tooth groove 212 and a second tooth groove 111 respectively disposed on opposite sides of the backrest pivoting seat 21 and the fixed seat 11, a gear 112 disposed between the first tooth groove 212 and the second tooth groove 111 and capable of moving left and right, and a second spring (not shown) disposed between the gear 112 and a bottom wall of the second tooth groove 111, under the action of the second spring, the gear 112 is engaged with the first tooth groove 212 and the second tooth groove 111 at the same time, so that the backrest 2 and the seat 1 cannot rotate relatively, and the backrest locking mechanism is in a locked state.

Preferably, in order to lock more reliably, in this embodiment, the backrest locking mechanisms are disposed between the backrest pivoting seats 21 and the fixing seats 11 on the left and right sides of the lower end of the backrest 2.

As shown in fig. 5 and 9 to 11, a backrest unlocking mechanism for unlocking the backrest locking mechanism is provided on the upper side of the backrest 2. In this embodiment, the backrest 2 includes a body 22 and a cover plate 23 connected to the front side of the body 22, the backrest pivot seats are fixedly disposed on the left and right sides of the lower end of the body 22, a wire slot 24 is disposed between the body 22 and the cover plate 23, and the lower end of the wire slot 24 is communicated with the first tooth slot 212 of the backrest pivot seat 21; the backrest locking mechanism comprises an operating element 25 which is connected between the body 22 and the upper side of the cover plate in a relatively up-and-down moving manner, a driving element 26 which is arranged in the first tooth groove 212 in a relatively rotating manner and in a relatively left-and-right moving manner, and a steel wire (not shown) which is connected to the operating element 25 and the driving element 26 at the upper end and the lower end respectively, the steel wire is routed in the wire routing groove 24, the driving element 26 is positioned between the bottom wall of the first tooth groove 212 and the gear, the operating element 25 is moved upwards, and the steel wire is pulled to move upwards, so that the driving element 26 moves towards the direction of.

Specifically, the lower end of the steel wire extends into the first slot 212 to connect with the driving element 26, and the opposite sides of the bottom wall of the driving element 26 and the first slot 212 are respectively provided with a corresponding second driving bevel 261 and a corresponding second driven bevel (not shown). When the operating element 25 is moved upwards, the steel wire is pulled to move upwards, so that the driving element 26 is pulled to rotate, and under the interaction between the second driving inclined plane 261 and the second driven inclined plane, the driving element 26 moves towards the direction of the gear, so that the gear is pushed to move towards the direction of the second tooth groove 111 until the gear completely disengages from the first tooth groove 212 and is only meshed with the second tooth groove 111, and at the moment, the backrest locking mechanism is unlocked.

In this embodiment, the backrest body 22 is provided with a front-rear through avoiding hole 221 at a position corresponding to the operating element 25, and the operating element 25 is provided with a groove 251 at a rear side thereof, so that an operator can move the operating element 25 upward.

The backrest body 22 is provided with a blocking plate 223 at an upper side of the operating member 25, and a third spring (not shown) is provided between the operating member 25 and the blocking plate 223 to help the operating member 25 to return. Preferably, the upper end of the operating member 25 is provided with a spring hole 253, and the lower end of the third spring is disposed in the spring hole 253, so as to prevent the third spring from being displaced.

The operating member 25 is provided with engaging lugs 251 at the left and right ends of the front side thereof, the engaging lugs 251 are provided with slots 252 extending vertically, and correspondingly, the backrest body 22 is provided with two bolts 222 at the front side thereof, and the bolts are inserted into the slots 252. So that the operating member 25 can only move up and down after the body 22 of the backrest 2 is coupled with the cover plate 23.

In other embodiments, the backrest unlocking mechanism may be any other known and feasible structure, and is not the focus of the present invention.

The utility model discloses the folding principle of seat does:

when the backrest locking mechanism and the armrest locking mechanism are in a locked state, the backrest and the armrest cannot rotate relative to the sitting part.

When the backrest 2 and the seat part 1 can rotate relatively, the backrest pivoting seat 21 rotates along with the backrest 2, the locking member 32 is pushed to move downwards by the interaction between the first driving inclined surface 2111 on the outer side of the backrest pivoting seat 21 and the first driven inclined surface 3221 of the locking part 322, so that the locking part 323 is separated from the locking groove 31 of the armrest 3, and the armrest locking mechanism is unlocked, and the armrest 3 naturally rotates downwards due to the weight of the armrest 3, so that the armrest 3 and the backrest 2 rotate together in the direction of the seat part 1 until the backrest 2, the armrest 3 and the seat part 1 are relatively close to each other, and the seat is folded (as shown in fig. 12).

When the folded seat is unfolded, the backrest 2 and the armrest 3 are rotated upward, and when the folded seat is rotated to a certain angle, the gear and the locking piece 32 are reset under the action of the first spring 33 and the second spring, so that the backrest 2 and the armrest 3 are automatically locked in the unfolded state.

With reference to fig. 1 and 12, the present invention also discloses a stroller, which comprises the seat 10 with simple folding operation.

In this embodiment, preferably, the stroller further includes a frame 4, the frame 4 includes a connecting seat 41, a front leg 42 fixedly connected to the front side of the connecting seat 41 at the rear end, a rear leg 43 pivotally connected to the rear side of the connecting seat 41 at the front end, a push handle rod 44 pivotally connected to the connecting group at the lower side, a sliding seat 45 relatively movably connected to the front leg 42, a first connecting member 46 pivotally connected to the sliding seat 45 at the lower end, a second connecting member 47 pivotally connected to the upper end of the first connecting member 46 and the connecting seat 41 at the front end and the rear end, and a third connecting member 48 pivotally connected to the sliding seat 45 and the rear leg 43 at the front end and the rear end, and the seat is connected to the second connecting member 47.

When the frame 4 is folded, the sliding member moves downwards along the front leg 42, that is, the front end of the third connecting member 48 at the lower end of the first connecting member 46 is pulled to move forwards and downwards in a rotating way, and the upper end of the first connecting member 46 pulls the front side of the second connecting member 47 to move downwards, so that the seat 10 is also pulled to move together; the push handle rod rotates forwards and downwards; the backrest locking mechanism can be unlocked before the frame 4 is folded or after the frame 4 is folded, so that the seat and the frame 4 are both folded, the whole volume of the baby carriage is small, and the baby carriage is convenient to carry and store.

In other embodiments, the frame 4 may be any other known structure, and the connection with the seat may be any known scheme.

Claims

1. A seat easy and simple to handle is folded to a folding, its characterized in that: including riding seat, downside pin joint in back, the rear side of riding seat rear side with the handrail of riding seat rear side pin joint, be provided with between back downside and the riding seat rear side and be used for restricting both relative rotation's back locking mechanical system, be provided with between handrail rear side and the riding seat rear side and be used for restricting both relative rotation's handrail locking mechanical system, handrail locking mechanical system sets up including setting up in the locking groove of handrail rear side, can reciprocating relatively locking piece between handrail and the riding seat, when locking piece upside card goes into the locking inslot, the handrail can not be rotatory in the relative riding seat, and the unblock is backed to locking mechanical system, and the back of forward rotation can promote the locking piece and down remove and break away from the locking groove to handrail locking mechanical system unblock.

2. The seat facilitating a folding operation according to claim 1, wherein: the lower end of the backrest is provided with a left backrest pivoting seat and a right backrest pivoting seat; the lower side of the fixing seat is fixedly connected with the sitting part, the two backrest pin-joint seats are respectively pin-jointed at the left end and the right end of the upper side of the fixing seat, and the rear sides of the left side and the right side of the handrail are respectively pin-jointed at the outer sides of the two backrest pin-joint seats.

3. The seat facilitating a folding operation according to claim 2, wherein: the middle of the rear side of the sitting part is provided with a first accommodating groove which is sunken downwards, and the lower side of the fixing seat is relatively and fixedly arranged in the first accommodating groove.

4. A seat easy to fold according to claim 1, 2 or 3, wherein: the locking piece includes a main part, certainly main part upper end up extended driven part and locking portion, just driven part and locking portion interval set up, when locking groove was gone into to the locking portion card, handrail locking mechanical system was in the locking state.

5. The seat easy to fold operation of claim 4, wherein: the outer side of the backrest pivoting seat is provided with a driving groove with a downward opening, when the locking part is clamped into the locking groove, the driven part is positioned in the driving groove, and the front-back width of the driving groove is greater than the front-back width of the driven part; the front side of the driven part is provided with a first driven inclined surface, and correspondingly, the front side wall of the driving groove is provided with a first driving inclined surface.

6. The seat easy to fold operation of claim 5, wherein: a second accommodating groove which is sunken downwards is further formed in the rear side of the sitting part, and the locking piece main body can be arranged in the second accommodating groove in a relatively up-and-down moving mode; the armrest locking mechanism further comprises a first spring, the first spring is arranged between the lower side of the locking piece main body and the bottom wall of the second accommodating groove, and under the action of the first spring, the driven part and the upper side of the locking piece can extend out of the second accommodating groove and respectively extend into the driving groove and the locking groove.

7. A seat easy to fold operation according to claim 2 or 3 or 5 or 6 wherein: the backrest locking mechanism comprises a first tooth groove and a second tooth groove which are respectively arranged on the opposite sides of the backrest pivoting seat and the fixed seat, a gear which can be relatively arranged between the first tooth groove and the second tooth groove in a left-right moving mode, and a second spring which is arranged between the gear and the bottom wall of 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, so that the backrest and the sitting part cannot rotate relatively.

8. The seat facilitating a folding operation according to claim 7, wherein: a backrest unlocking mechanism used for unlocking the backrest locking mechanism is arranged on the backrest; the backrest comprises a body and a cover plate connected to the front side of the body, the backrest pivoting seats are fixedly arranged on the left side and the right side of the lower end of the body, wiring grooves are formed between the body and the cover plate, and the lower ends of the wiring grooves are communicated with a first tooth groove of the backrest pivoting seats; the backrest locking mechanism comprises an operating part, a driving part and a steel wire, wherein the operating part can be connected between the body and the upper side of the cover plate in a relatively up-and-down moving mode, the driving part can rotate relatively and can be arranged in the first tooth groove in a relatively left-and-right moving mode, the upper end and the lower end of the steel wire are respectively connected with the operating part and the driving part, the steel wire is arranged in the wire distributing groove, the driving part is located between the bottom wall of the first tooth groove and the gear, the operating part is moved up, the steel wire is pulled to move up.

9. The seat facilitating a folding operation according to claim 8, wherein: and the opposite sides of the bottom wall of the driving piece and the first tooth groove are respectively provided with a corresponding second driving inclined plane and a corresponding second driven inclined plane.

10. A stroller, characterized in that: a seat comprising the folding operator of any one of claims 1 to 9.