CN211844592U - A reversible stroller seat frame structure - Google Patents

Abstract

The utility model provides a reversible baby carriage frame structure without disassembly operation during folding, which comprises two rotating connecting seats and a seat frame detachably connected with the two rotating connecting seats, wherein the rotating connecting seats are provided with bayonet locks for locking the rotating connecting seats, two sides of the seat frame are provided with mounting seats detachably connected with the rotating connecting seats, a seat locking component is arranged between the mounting seats and the rotating connecting seats, a backrest rod is arranged between the two mounting seats, a rotating seat capable of enabling the backrest rod to rotate relative to the mounting seats is arranged between the end part of the backrest rod and the mounting seats, a backrest locking component capable of locking the rotating seat is arranged between the rotating seat and the mounting seats, a backrest unlocking component for unlocking the backrest locking component is arranged on the backrest rod, the rotating seat is provided with an arc-shaped notch arranged along the rotating direction of the rotating seat for avoiding so that the bayonet locks can slide in the arc-shaped notch when the rotating seat rotates, the end part of the arc-shaped notch is provided with a guide inclined plane which enables the bayonet lock to be ejected out to unlock the rotary connecting seat.

Description

A reversible stroller seat frame structure

【Technical field】

The utility model relates to the field of baby carriages, in particular to a reversible baby carriage seat frame structure.

【Background technique】

The traditional structure of the stroller frame with reversible seat, when the seat needs to be reversed, it is often necessary to first remove the seat from the frame, then reverse the seat and then install the reversed seat on the car. on the rack to achieve seat reversal. When the frame needs to be collected, the seat needs to be removed first, and then the frame needs to be collected. When storing, the seat and frame need to be stored separately, which takes up a lot of space, and needs to be re-installed next time. It is very inconvenient to install the seat on the frame.

【Content of utility model】

The technical problem to be solved by the utility model is to provide a reversible baby carriage seat frame structure that does not need to be disassembled when the car is retracted.

The purpose of this utility model is achieved in this way:

A reversible stroller seat frame structure includes two rotating connecting bases rotatably arranged inside the joints of the two strollers, and a seat frame detachably connected to the two rotating connecting bases. A bayonet pin is inserted into the inner side of the joint of the stroller to lock the rotating connecting seat, and two sides of the seat frame are provided with a detachable connection with the rotating connecting seat so that the seat frame can be connected from the rotating connecting seat. A mounting seat from which the seat is removed and reversed, a seat locking assembly for locking the mounting seat is arranged between the mounting seat and the rotating connecting seat, and a backrest bar is arranged across the two mounting seats, Between the end of the backrest bar and the mounting seat, there is a rotating seat that can rotate the backrest bar relative to the mounting seat, and between the rotating seat and the mounting seat is a rotating seat that can rotate A backrest locking assembly for seat locking, the backrest lever is provided with a backrest unlocking assembly for unlocking the backrest locking assembly, and the rotating seat is provided with a backrest unlocking assembly arranged along its rotation direction for avoiding the bayonet The arc-shaped notch is so that the bayonet pin can slide in the arc-shaped notch when the rotating base rotates, and the end of the arc-shaped notch is provided with the bayonet pin to be pushed out to unlock the Rotate the guide slope of the connector.

The utility model adopts the above structure, through the detachable connection between the mounting seats on both sides of the seat frame and the rotating connecting seat, so that the seat frame can be reversed relative to the stroller frame. During normal deployment, the backrest locking assembly locks the swivel seat, thereby fixing the swivel seat and the backrest rod to the mounting seat, and the mounting seat is fixed on the rotating connecting seat through the seat locking assembly, and the rotating connecting seat is fixed on the rotating connecting seat through the bayonet card. The seat frame can be stably fixed on the frame of the stroller for use by entering the inner card hole of the stroller joint and locking it. When the stroller frame needs to be retracted, first unlock the backrest locking assembly through the backrest unlocking assembly, so that the swivel seat can rotate relative to the mounting seat to fold the backrest rod. During the rotation of the swivel seat, The bayonet can slide in the arc-shaped notch of the rotating seat. When the bayonet slides along the arc-shaped notch to the guide slope at the end, the rotating base pushes the bayonet out of the bayonet hole and unlocks the rotating connecting base, thereby The rotating connecting seat and the seat frame as a whole can be rotated and folded relative to the stroller frame, and finally the stroller frame can be retracted to complete the entire vehicle. Therefore, the utility model can be integrated with the stroller frame and can be integrated with the stroller frame after the seat is switched forward and reversed without the need for disassembly, which is very convenient, and the seat and the stroller frame can be stored integrally after the vehicle is closed, saving energy. Storage space, next time you use it, you don't need to install it again, which is very convenient.

A reversible stroller seat frame structure as described above, the lower end of the rotating connecting seat is provided with a convex block, and the bayonet includes a telescopic movement in the convex block so as to penetrate through the rotating connecting seat and be clamped. A pin inserted into the card hole and a pin connecting piece provided at the end of the pin, the pin connecting piece can slide relative to the arc-shaped notch when the rotating seat rotates and slide to the When guiding the inclined surface, push the pin out to get out of the card hole. In normal use, the pin shaft of the bayonet pin is inserted into the inner card hole of the stroller joint to lock the rotating connecting seat, while the pin shaft connecting piece is located in the arc-shaped notch of the rotating seat. Folded, at this time, the rotating seat rotates so that the pin shaft connecting piece slides in the arc-shaped notch of the rotating seat. When the pin shaft connecting piece slides along the arc-shaped notch to the guiding slope of the end, the rotating seat slides the pin shaft connecting piece It is pushed out together with the pin shaft to release the pin shaft from the clamping hole and unlock the rotating connecting seat, so that the rotating connecting seat and the seat frame can be rotated and folded relative to the stroller frame as a whole.

A reversible stroller seat frame structure as described above, the mounting seat is provided with a clamping sleeve, and correspondingly, the rotating connecting seat is provided with a clamping block that is clamped and connected to the clamping sleeve, and The snap connection between the snap block and the snap sleeve can realize the detachable connection between the seat frame and the rotating connecting seat, so as to realize the reversal of the seat.

In a reversible stroller seat frame structure as described above, the seat locking assembly includes bayonet openings provided on the front and rear sides of the latching block, which are provided in the mounting seat and can be opposite to the clamping sleeve. A latching post elastically stretched to be snap-connected with the bayonet and an unlocking pressing block protruding from the mounting seat and used for releasing the latching post and the bayonet. When the seat frame is installed on the rotating connecting seat, the clamping post is elastically clamped on the bayonet on the front or rear side of the clamping block, thereby locking the seat frame. When the seat frame needs to be removed, it is necessary to press Lower the unlocking pressing block to make the locking post and the bayonet release, at this time, the seat frame is unlocked and can be removed from the rotating connecting seat.

A reversible stroller seat frame structure as described above, the backrest locking assembly includes a toothed groove provided on the inner side of the mounting seat and is movably provided between the mounting seat and the rotating seat The movable block, the upper and lower ends of the movable block are provided with limiting protrusions that are respectively connected with the tooth-shaped grooves on the upper and lower sides of the mounting seat, and the backrest locking assembly also includes a An elastic pressing piece in the rod and used for pressing the movable block to make the limiting protrusion snap into the tooth-shaped groove. During normal deployment and use, under the pressing action of the elastic pressing piece, the limiting protruding column is clamped into the tooth-shaped groove, so that the rotating seat is fixed on the mounting seat.

A reversible stroller seat frame structure as described above, the inner side of the mounting seat is provided with an arc-shaped guide groove communicating with the tooth-shaped groove, so that the limiting convex column slides in it to adjust the position. The position of the limiting protruding post relative to the tooth-shaped groove. When the limit protrusion is separated from the toothed groove, the backrest rod and the rotating seat can rotate relative to the mounting seat, and at the same time, the limit protrusion slides in the arc guide groove, so that the limit protrusion can slide to other parts of the toothed groove. The angle of the backrest bar can be adjusted at the position, and at the same time, the limiting convex column can be slid in the arc guide groove to fold the backrest bar.

A reversible stroller seat frame structure as described above, the backrest unlocking assembly includes an unlocking block provided on the backrest bar and an unlocking block provided in the backrest bar and used for pulling the movable block In order to make the limiting protruding column separate from the pull rope of the tooth-shaped groove, the two ends of the pull rope are respectively connected with the unlocking block and the movable block. Bending the unlocking block can make the pull rope pull the movable block to overcome the elastic force of the elastic pressing piece and make the limiting protruding post disengage from the tooth-shaped groove, so that the angle of the backrest bar can be adjusted or retracted.

【Description of drawings】

The specific embodiments of the present utility model will be described in further detail below in conjunction with the accompanying drawings, wherein:

Fig. 1 is the structural representation of the utility model;

FIG. 2 is a schematic diagram of the connection structure between the rotating connecting seat and the baby carriage joint according to the present invention;

Fig. 3 is the structural representation of the seat frame of the utility model;

Fig. 4 is the structural schematic diagram of the rotating connecting seat of the present invention;

5 is a partial structural schematic diagram of the seat locking assembly of the present invention;

6 is a schematic diagram of the inner side structure of the mounting seat of the present invention;

7 is a schematic structural diagram of the backrest locking assembly according to the present invention;

8 is a reference diagram of the use state of the utility model when the backrest bar is folded;

Fig. 9 is the reference diagram of the use state of the stroller frame to which the utility model is applied when the whole vehicle is closed;

10 is a reference diagram of the use state when the backrest bar is folded after the reversing of the utility model;

FIG. 11 is a reference diagram of the use state of the stroller frame to which the utility model is reversed after the whole vehicle has been retracted.

【Detailed ways】

A reversible stroller seat frame structure includes two rotating connecting bases 1 rotatably arranged on the inner side of two stroller joints 10 and a seat frame 2 detachably connected with the two rotating connecting bases 1. There is a bayonet 11 that can be snapped into the inner card hole 101 of the stroller joint 10 to lock the rotating connecting base 1, and the two sides of the seat frame 2 are provided with a detachable connection with the rotating connecting base 1, so that the seat frame 2 can be connected from the rotating connection. The mounting seat 21 after the seat 1 is removed and reversed, a seat locking assembly 3 for locking the mounting seat 21 is arranged between the mounting seat 21 and the rotating connecting seat 1, and a backrest bar is arranged between the two mounting seats 21 4. Between the end of the backrest bar 4 and the mounting seat 21, there is a rotating seat 5 that can make the backrest bar 4 rotate relative to the mounting seat 21, and between the rotating seat 5 and the mounting seat 21 is provided to lock the rotating seat 5 The backrest locking assembly 6 is provided, the backrest lever 4 is provided with a backrest unlocking assembly 7 for unlocking the backrest locking assembly 6, and the rotating seat 5 is provided with an arc-shaped recess arranged along its rotation direction for avoiding the detent 11. The opening 51 enables the bayonet 11 to slide in the arc-shaped notch 51 when the rotating base 5 rotates.

The lower end of the rotating connecting base 1 is provided with a convex block 12 , and the locking pin 11 includes a pin shaft 111 which can be telescopically moved in the convex block 12 to penetrate through the rotating connecting base 1 and be clamped into the locking hole 101 , and a pin shaft 111 arranged at the end of the pin shaft 111 . The pin shaft connecting piece 112 can slide relative to the arc-shaped notch 51 when the rotating base 5 rotates and push the pin shaft 111 out of the locking hole 101 when sliding to the guide slope 52 . In normal use, the pin 111 of the bayonet 11 is inserted into the inner bay 101 of the stroller joint to lock the rotating connecting seat 1, while the pin connecting piece 112 is located in the arc-shaped recess 51 of the rotating base 5, and the car needs to be retracted. When the backrest lever 4 is folded first, the rotating base 5 rotates so that the pin shaft connecting piece 112 slides in the arc-shaped notch 51 of the rotating base 5 . When sliding to the guide slope 52 at the end, the rotating base 5 pushes out the pin shaft connecting piece 112 together with the pin shaft 111 to make the pin shaft 111 disengage from the clamping hole 101 and unlock the rotating connecting base 1, so that the rotating connecting base 1 and the The entire seat frame 2 can be rotated and folded relative to the stroller frame. In order to prevent the pin shaft 111 from falling off the bump 12 , a limiting boss (not shown in the figure) can be provided in the bump 12 .

The mounting base 21 is provided with a clamping sleeve 211. Correspondingly, the rotating connecting base 1 is provided with a clamping block 13 that is clamped and connected to the clamping sleeve 211. The seat frame can be realized by the clamping connection between the clamping block 13 and the clamping sleeve 211. The detachable connection between 2 and the rotating connecting seat 1, so as to realize the reversal of the seat.

The seat locking assembly 3 includes a bayonet 31 disposed on the front and rear sides of the latching block 13, a latching post 32 that is provided in the mounting seat 21 and can be elastically retracted relative to the latching sleeve 211 to be snap-connected with the bayonet 31, and a latching post 32 protruding from the bayonet 31. The mounting seat 21 is also an unlocking pressing block 33 used to release the clamping post 32 from the bayonet 31 . The mounting seat 21 is also provided with a pressing spring for pressing the clamping post 32 to elastically snap into the bayonet 31. When the seat frame 2 is installed on the rotating connecting seat 1, the pressing action of the pressing spring down, the clamping post 32 is elastically clamped on the bayonet 31 on the front side or the rear side of the clamping block 13 (when the seat frame 2 is not reversed, as shown in FIG. 1 or FIG. 8, the seat frame 2 faces forward, At this time, the clamping post 21 is clamped on the bayonet 31 on the front side of the clamping block 13; when the seat frame 2 is reversed, as shown in FIG. 10, the seat frame 2 faces backward, and the clamping post 21 is clamped on (on the bayonet 31 on the rear side of the latching block 13), thereby locking the seat frame 2. When the seat frame 2 needs to be removed, it is necessary to press the unlocking pressing block 33 to make the latching post 32 and the bayonet 31 release. , the seat frame 2 is unlocked and can be removed from the rotating connection base 1 at this time.

The backrest locking assembly 6 includes a toothed groove 61 arranged on the inner side of the mounting seat 21 and a movable block 62 movably arranged between the mounting seat 21 and the rotating seat 5. The upper and lower ends of the movable block 62 are respectively provided with the mounting seat. The toothed grooves 61 on the upper and lower sides of the 21 are snap-connected to the limiting protrusions (not shown in the figure), and the backrest locking assembly 6 also includes a backrest rod 4 and is used to push the movable block 62 to make the limiter. The position protruding post is snapped into the elastic pressing piece in the tooth-shaped groove 61 . During normal deployment and use, under the pressing action of the elastic pressing member, the limiting protruding column is clamped into the toothed groove 61 so that the rotating seat 5 is fixed on the mounting seat 21 . The elastic top pressing piece is preferably a spring.

The inner side of the mounting seat 21 is provided with an arc-shaped guide groove 64 communicating with the toothed groove 61 for the limiting protrusion to slide therein to adjust the position of the limiting protrusion relative to the toothed groove 61 . When the limiting protrusion is separated from the toothed groove 61, the backrest rod 4 and the rotating seat 5 can rotate relative to the mounting seat 21, and at the same time, the limiting protrusion slides in the arc-shaped guide groove 64, so that the limiting protrusion can slide to The other positions of the toothed groove 61 are used to adjust the angle of the backrest rod 4 , and at the same time, the limiting protrusion can be slid in the arc guide groove 64 to fold the backrest rod 4 .

The backrest unlocking assembly 7 includes an unlocking block 71 provided on the backrest bar 4 and a pull rope (not shown in the figure) that is provided in the backrest bar 4 and is used to pull the movable block 62 to make the limiting protruding post disengage from the toothed groove 61 . shown), the two ends of the pull rope are respectively connected with the unlocking block 71 and the movable block 62. By breaking the unlocking block 71 , the pull rope can pull the movable block 62 to overcome the elastic force of the elastic pressing member and make the limiting protruding post disengage from the tooth-shaped groove 62 , so that the angle of the backrest bar 4 can be adjusted or retracted.

When the utility model is normally deployed and used, the backrest locking assembly 6 locks the rotating seat 5, thereby fixing the rotating seat 5 and the backrest rod 4 to the mounting seat 21, and the mounting seat 21 is fixed to the rotating connecting seat through the seat locking assembly 3 1, the rotating connecting seat 1 is locked by the locking pin 11 into the inner card hole 101 of the stroller joint, so that the seat frame 2 is stably fixed on the stroller frame for use. During use, if the angle of the backrest lever 4 needs to be adjusted, the unlocking block 71 can be pulled to make the pull rope pull the movable block 62 to overcome the elastic force of the elastic pressing piece and make the limiting protruding post disengage from the tooth-shaped groove 62 . The backrest lever 4 can be rotated to adjust to an appropriate angle at the time of adjustment. During the adjustment process, the rotating seat 5 is rotated relative to the mounting seat 21, so that the limiting convex column slides in the arc-shaped guide groove 64, so that the limiting convex column slides to the corresponding position. position on the toothed groove 61 , so as to complete the angle adjustment of the backrest rod 4 . When the seat needs to be reversed, it is necessary to press the unlocking pressing block 33 to make the latching post 32 and the bayonet 31 release. At this time, the seat frame 2 is unlocked and can be removed from the rotating connection base 1 to change the direction. After completion, under the pressing action of the pressing spring, the clamping post 32 is elastically clamped on the bayonet 31 on the rear side of the clamping block 13 (when the seat frame 2 is not reversed, the seat frame 2 faces forward, and the clamping The post 21 is snapped on the bayonet 31 on the front side of the snap block 13 ), thereby re-locking the seat frame 2 .

When the stroller frame needs to be retracted, the operation is basically the same regardless of whether the seat is reversed. First, move the unlocking block 71 to make the pull rope pull the movable block 62 and make the limiting convex column detach from the toothed groove 62. At this time, the backrest lever 4 can be rotated to fold it. During the process of folding the backrest lever 4 The rotating base 5 rotates relative to the mounting base 21, so that the limiting convex column slides in the arc-shaped guide groove 64, and at the same time, the pin shaft connecting piece 112 slides in the arc-shaped notch 51 of the rotating base 5. When the arc-shaped notch 51 slides to the guide inclined surface 52 at the end, the rotating base 5 pushes out the pin shaft connecting piece 112 together with the pin shaft 111 to make the pin shaft 111 disengage from the clamping hole 101 and unlock the rotating connecting base 1 , so that the The rotating connecting seat 1 and the seat frame 2 can be rotated and folded relative to the stroller frame as a whole (when the seat is not reversed, as shown in FIG. 20 close and fold; when the seat is reversed, as shown in Figure 10, when folded, the connecting seat 1 and the seat frame 2 are folded toward the rear leg bar 30 of the stroller frame as a whole), and finally push the push rod of the stroller frame 40. The rear leg bar 30 and the front leg bar 20 can be closed and folded together to complete the whole vehicle retraction of the stroller (as shown in FIG. 9 or FIG. 11 ). Therefore, the utility model can be integrated with the stroller frame and can be integrated with the stroller frame after the seat is switched forward and reversed without the need for disassembly, which is very convenient, and the seat and the stroller frame can be stored integrally after the vehicle is closed, saving energy. The storage space can be reused by directly unfolding the hand push bar 40, rear leg bar 30, front leg bar 20, seat frame 2 and backrest bar 4 of the stroller frame when using it next time, without the need to install the seat again, which is very convenient .

Claims (7)

1. The utility model provides a children's saddle frame structure that can commutate, its characterized in that includes two rotationally locate two bassinet joints (10) inboard rotate connecting seat (1) and with two rotate connecting seat (1) can dismantle seat frame (2) of connection, it can block in bassinet joint (10) inboard card hole (101) in order to with to rotate bayonet lock (11) of connecting seat (1) locking to be equipped with on rotating connecting seat (1), the both sides of seat frame (2) be equipped with rotate connecting seat (1) can dismantle the connection so that seat frame (2) can follow rotate connecting seat (1) and pull down and installation seat (21) of switching-over, installation seat (21) with be equipped with between rotating connecting seat (1) and be used for with seat locking subassembly (3) of installation seat (21) locking, two stride between installation seat (21) and be equipped with back of leaning on pole (4), the utility model discloses a bayonet lock, including base (5), rotation seat (5) and arc recess (51), the tip of backing to pole (4) with be equipped with between mount pad (21) and make backing to pole (4) is relative mount pad (21) pivoted rotate seat (5), rotate seat (5) with be equipped with between mount pad (21) and can be with the back locking Assembly (6) that rotate seat (5) locking, be equipped with on backing to pole (4) with back unlocking Assembly (7) of back locking Assembly (6) unblock, it sets up in order to be used for dodging to rotate to be equipped with along its direction of rotation on seat (5) arc recess (51) of bayonet lock (11) so that work as when rotation seat (5) rotate bayonet lock (11) can slide in arc recess (51), the tip of arc recess (51) is equipped with and makes bayonet lock (11) are ejecting with the unblock rotate direction inclined plane (52) of connecting seat (1).

2. A reversible stroller frame structure according to claim 1, wherein the lower end of the rotating connecting base (1) is provided with a protrusion (12), the latch (11) comprises a pin (111) which can be extended and retracted in the protrusion (12) to penetrate the rotating connecting base (1) and be latched into the latching hole (101) and a pin connecting piece (112) which is arranged at the end of the pin (111), the pin connecting piece (112) can slide relative to the arc-shaped recess (51) when the rotating base (5) rotates and eject the pin (111) to be disengaged from the latching hole (101) when sliding to the guiding inclined plane (52).

3. A reversible stroller frame structure according to claim 1 or 2, wherein the mounting seat (21) is provided with a clamping sleeve (211), and correspondingly, the rotary connecting seat (1) is provided with a clamping block (13) connected with the clamping sleeve (211) in a clamping manner.

4. A reversible stroller frame structure according to claim 3, wherein said seat locking assembly (3) comprises bayonets (31) disposed on the front and rear sides of said snap block (13), snap posts (32) disposed in said mounting seat (21) and elastically stretchable relative to said snap sleeve (211) to be snap-coupled to said bayonets (31), and unlocking pressing blocks (33) protruded from said mounting seat (21) for releasing said snap posts (32) from said bayonets (31).

5. The vehicle seat frame structure for children, as claimed in claim 1 or 2, characterized in that said backrest locking assembly (6) comprises a tooth-shaped groove (61) disposed inside said mounting seat (21) and a movable block (62) movably disposed between said mounting seat (21) and said rotating seat (5), said movable block (62) is provided at its upper and lower ends with a limit protrusion connected to said tooth-shaped groove (61) at the upper and lower sides of said mounting seat (21), said backrest locking assembly (6) further comprises an elastic pressing member disposed in said backrest rod (4) and used for pressing said movable block (62) so that said limit protrusion is clamped into said tooth-shaped groove (61).

6. A reversible stroller frame structure according to claim 5, wherein said mounting seat (21) is provided at its inner side with an arc-shaped guide groove (64) communicating with said toothed groove (61) for sliding said position-restricting projection therein to adjust the position of said position-restricting projection relative to said toothed groove (61).

7. A reversible stroller frame structure according to claim 5, characterized in that said backrest unlocking assembly (7) comprises an unlocking block (71) disposed on said backrest rod (4) and a pulling rope disposed in said backrest rod (4) for pulling said movable block (62) to disengage said limiting protrusion from said tooth-shaped groove (61), and both ends of said pulling rope are connected to said unlocking block (71) and said movable block (62), respectively.

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