CN106184331B

CN106184331B - Infant car seat chair frame and perambulator

Info

Publication number: CN106184331B
Application number: CN201510212388.6A
Authority: CN
Inventors: 刘修平
Original assignee: SUNNYLOVE BABY PRODUCTS ZHUHAI CO Ltd
Current assignee: SUNNYLOVE BABY PRODUCTS ZHUHAI CO Ltd
Priority date: 2015-04-29
Filing date: 2015-04-29
Publication date: 2018-07-06
Anticipated expiration: 2035-04-29
Also published as: CN106184331A

Abstract

The invention discloses a kind of infant car seat chair frame and perambulators.Infant car seat chair frame includes the first frame body, the second frame body, intermediate connecting seat, the first pivot and the second pivot, the first end of first frame body and intermediate connecting seat is rotatably coupled by the first pivot, the second end of second frame body and intermediate connecting seat is rotatably coupled by the second pivot, infant car seat chair frame has unfolded state and folded state, in folded state, the first frame body and the second frame body are located at the homonymy of intermediate connecting seat and have finger gap between the first frame body and the second frame body.The present invention can prevent infant car seat chair frame from jamming a finger during folding folds, and improve infant car seat chair frame and the security performance of perambulator.

Description

Baby carriage seat frame and baby carriage

Technical Field

The invention relates to the field of manual vehicles, in particular to a baby carriage seat frame and a baby carriage.

Background

In the prior art, many strollers are foldable, and their stroller seat frames are also foldable, in order to reduce the packaging volume during storage and transportation.

Chinese patent application No. 201310743731.0 discloses a foldable stroller seat frame. As shown in fig. 1, the foldable stroller seat frame disclosed in the chinese patent application comprises an upper seat frame tube 2 ', a lower seat frame tube 3 ', and a grab bar 1 ', wherein the upper seat frame tube 2 ', the lower seat frame tube 3 ', and the grab bar 1 ' are hinged to each other, and a folding control device is disposed at the hinged position to enable the upper seat frame tube 2 ', the lower seat frame tube 3 ', and the grab bar 1 ' to be freely rotated, folded and retracted around the hinged position.

In the process of implementing the invention, the inventor finds that the prior art has the following defects: in the folding process of the baby carriage seat frame in the prior art, the areas which are easy to clamp and hurt fingers are formed between the upper seat tube 2 'and the grab bar 1' and between the lower seat frame tube 3 'and the grab bar 1'.

Disclosure of Invention

The invention aims to provide a baby carriage seat frame and a baby carriage, which can prevent fingers from being injured by the baby carriage seat frame in the folding and folding process and improve the safety performance of the baby carriage seat frame and the baby carriage.

The invention provides a baby carriage seat frame, which comprises a first frame body, a second frame body, an intermediate connecting seat, a first pivot and a second pivot, wherein the first frame body is rotatably connected with the first end of the intermediate connecting seat through the first pivot, the second frame body is rotatably connected with the second end of the intermediate connecting seat through the second pivot, the baby carriage seat frame has an unfolding state and a folding state, in the folding state, the first frame body and the second frame body are positioned on the same side of the intermediate connecting seat, and a hand clamping preventing gap is formed between the first frame body and the second frame body.

Further, perambulator seat frame still including set up in handrail on the intermediate junction seat fold condition, first support body the second support body with the handrail all is located intermediate junction seat's homonymy, just prevent that tong clearance is including being located first support body with first between the handrail prevent tong clearance and be located the second support body with the second between the handrail prevents tong clearance.

Further, the baby carriage seat frame further comprises a first locking mechanism and a second locking mechanism, wherein the first locking mechanism is provided with a locking position and an unlocking position, the first frame body and the intermediate connecting seat are fixed relatively at the locking position of the first locking mechanism, and the first frame body is rotatably arranged relative to the intermediate connecting seat at the unlocking position of the first locking mechanism; the second locking mechanism is provided with a locking position and an unlocking position, the second frame body and the intermediate connecting seat are relatively fixed in the locking position of the second locking mechanism, and the second frame body is rotatably arranged relative to the intermediate connecting seat in the unlocking position of the second locking mechanism.

Further, baby carriage seat frame still includes the transient state, the first support body with relative position between the intermediate junction seat with fold the state the same and the second support body with relative position between the intermediate junction seat with expand the state the same, wherein, second locking mechanism with first support body sets up in linkage, expand the state, second locking mechanism is in its latched position, in the transient state, second locking mechanism is in its unblock position under the drive of first support body.

Further, the first frame body comprises a first pipe frame and a first pipe frame connecting seat, a first end of the first pipe frame connecting seat is fixedly connected with the first pipe frame, and a second end of the first pipe frame connecting seat is rotatably connected with the middle connecting seat through the first pivot; the second support body includes second pipe support and second pipe support connecting seat, the first end of second pipe support connecting seat with the intermediate junction seat passes through the second pivot is rotationally connected, the second end of second pipe support connecting seat with second pipe support fixed connection.

Furthermore, first locking mechanism includes first locking piece, first elastic element, first piece and the first locking groove of drawing, first locking groove set up in the first end of intermediate junction seat, the first end of first locking piece with first piece is drawn and is connected, the second end of first locking piece include with first locking head of first locking groove complex, first elastic element to first locking piece exert make first locking head towards the first elastic force in first locking groove first locking mechanism's latched position, first locking head with first locking groove grafting cooperation, in first locking mechanism's unblock position, first locking head with first locking groove is relieved the cooperation.

Further, second locking mechanical system includes that second locking block, second elastic element, second pull and second locking groove, the second locking groove set up in on the second pipe support connecting seat, the first end of second locking block with the second pulls the piece and connects, the second end of second locking block include with second locking groove complex second locking head, second elastic element is right the second locking block is applyed and is made the orientation of second locking head the second elastic force of second locking groove the latched position of second locking mechanical system, second locking head with the cooperation is pegged graft to second locking groove the unblock position of second locking mechanical system, second locking head with the second locking groove is uncooled.

Further, the second end of first pipe support connecting seat has around the first curve groove of first pivot setting, be equipped with first pin on the second traction piece, first pin be located first curve inslot and with first curve groove sliding fit, first curve groove sets up to make the state of expanding the axis of first pin with distance between the axis of first pivot is greater than fold condition the axis of first pin with distance between the axis of first pivot.

Further, in the unfolded state, the first pin abuts against a first end of the first curved groove, and in the folded state, the first pin abuts against a second end of the first curved groove.

Further, the second end of intermediate junction seat is provided with the centre on the curved second curve groove of the concentric setting of second pivot, be provided with the second pin on the second pipe support connecting seat, the second pin is located the second curve inslot and with second curve groove sliding fit the state of expanding, the second pin with the first end butt in second curve groove fold condition, the second pin with the second end butt in second curve groove.

In a second aspect, the present invention provides a stroller comprising a stroller seat frame, wherein the stroller seat frame is the stroller seat frame of any one of the first aspect of the present invention.

The invention provides a baby carriage seat frame and a baby carriage. Baby carriage seat frame includes first support body, the second support body, the intermediate junction seat, first pivot and second pivot, first support body is rotationally connected through first pivot with the first end of intermediate junction seat, the second support body passes through the second pivot with the second end of intermediate junction seat rotationally to be connected, baby carriage seat frame has expansion state and fold condition, at fold condition, first support body and second support body lie in the homonymy of intermediate junction seat and have between first support body and the second support body and prevent pressing from both sides the hand clearance. According to the invention, the direct hinging between the first frame body and the second frame body in the prior art is changed into the hinging between the first frame body and the second frame body which are respectively hinged with different parts of the intermediate connecting seat, so that in a folded state, a certain interval is formed between the first frame body and the second frame body, a hand clamping prevention gap can be arranged, the arrangement of the hand clamping prevention gap can prevent fingers of the baby carriage seat frame from being clamped in the folding and folding process, and the safety performance of the baby carriage seat frame and the baby carriage is improved.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

fig. 1 is a perspective view of a foldable stroller seat frame according to the prior art.

Fig. 2 is a perspective view of the stroller seat frame of the first embodiment of the present invention in a deployed state.

Fig. 3 is a perspective view of the stroller seat frame of the first embodiment of the present invention in a folded state.

Fig. 4 is an exploded perspective view of the stroller seat frame of the first embodiment of the present invention in a deployed state.

Fig. 5 is a schematic exploded view of the stroller seat frame of the first embodiment of the present invention in the deployed state.

Fig. 6 is a schematic view of the stroller seat frame of the first embodiment of the present invention in a deployed state with a partial perspective view.

Fig. 7 is a schematic view of the stroller seat frame of the first embodiment of the present invention in a transitional state with a partial perspective view.

Fig. 8 is a schematic view of the stroller seat frame of the first embodiment of the present invention in a folded state with a partial perspective view.

Fig. 9 is a partial perspective schematic view of the stroller seat frame of the first embodiment of the present invention with the first locking device in a locked position in a deployed state.

Fig. 10 is a partial perspective schematic view of the stroller seat frame of the first embodiment of the present invention with the first locking device in an unlocked position in a deployed condition.

Fig. 11 is a partial perspective view of the stroller seat frame of the first embodiment of the present invention in a transitional state.

Fig. 12 is a partial perspective view of the stroller frame in a folded configuration in accordance with the first embodiment of the present invention.

Fig. 13 is a perspective view of the stroller according to the first embodiment of the present invention in a deployed state of the stroller seat frame.

Fig. 14 is a perspective view illustrating the stroller according to the first embodiment of the present invention in a folded state of the stroller seat frame.

Fig. 15 is a perspective view of a stroller seat frame according to a second embodiment of the present invention in a deployed state.

Fig. 16 is a perspective view of a stroller seat frame according to a second embodiment of the present invention in a folded state.

Fig. 17 is a perspective view of a stroller seat frame according to a third embodiment of the present invention in a deployed state.

Fig. 18 is a perspective view of a stroller seat frame according to a third embodiment of the present invention in a folded state.

In fig. 2 to 18, each reference numeral represents:

1. a first pivot;

2. a second pivot;

3. a first pipe frame;

4. a second pipe frame;

5. a handrail;

6. a middle connecting seat;

7. a first locking block;

8. a first locking groove;

9. a second locking block;

10. a second locking slot;

11. a first pipe frame connecting seat;

12. a second pipe frame connecting seat;

13. a first elastic element;

14. a first traction member;

15. a second elastic element;

16. a second traction member;

17. a first curved slot;

18. a first pin;

19. an operation section;

21. a supporting seat;

30. baby carriage frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 2 to 18, the stroller seat frame of the present invention includes a first frame body, a second frame body, an intermediate connection seat 6, a first pivot 1 and a second pivot 2. The first frame body is rotatably connected with the first end of the middle connecting seat 6 through a first pivot 1. The second frame body is rotatably connected with the second end of the middle connecting seat 6 through a second pivot 2. The stroller seat frame has an unfolded state and a folded state. In fold condition, first support body and second support body are located the homonymy of intermediate junction seat 6 and have between first support body and the second support body and prevent tong clearance.

The number of the anti-pinch gaps can be one or more. The areas between the two relatively movable parts, which are likely to be pinched by hand, can be provided with anti-pinch gaps. The anti-pinch gap is defined as the minimum distance between two adjacent parts that move relative to each other, which is greater than or equal to the minimum safety pinch gap specified in the safety standards for strollers. The safety hand clamping gap specified in the current national standard GB14748-2006 Children's barrow safety requirement is greater than or equal to 12 mm.

According to the invention, the direct hinging between the first frame body and the second frame body in the prior art is changed into the hinging between the first frame body and the second frame body which are respectively hinged with different parts of the intermediate connecting seat, so that in a folded state, a certain interval is formed between the first frame body and the second frame body, a hand clamping prevention gap can be arranged, the arrangement of the hand clamping prevention gap can prevent fingers of the baby carriage seat frame from being clamped in the folding and folding process, and the safety performance of the baby carriage seat frame and the baby carriage is improved.

First embodiment

Fig. 2 to 12 show a stroller seat frame according to a first embodiment of the present invention.

As shown in fig. 2 to 12, the stroller seat frame includes a first frame body, a second frame body, an intermediate connecting seat 6, a first pivot 1 and a second pivot 2.

The first frame body is rotatably connected with the first end of the middle connecting seat 6 through a first pivot 1. The second frame body is rotatably connected with the second end of the middle connecting seat 6 through a second pivot 2. Thus, the first and second frame bodies may perform relatively close rotation or relatively distant rotation with respect to the intermediate link base 6 about the first and second pivot shafts 1 and 2, respectively.

The stroller seat frame has an unfolded state and a folded state. In fold condition, first support body and second support body are located the homonymy of intermediate junction seat 6 and have between first support body and the second support body and prevent tong clearance. In this embodiment, in folded state, first support body and the equal perpendicular to intermediate junction seat 6 of second support body. In the unfolded state, the first frame body, the second frame body and the intermediate connecting seat 6 are positioned on the same plane.

In addition, in the first embodiment, the stroller frame further includes an armrest 5 disposed on the intermediate connection seat 6. In fold condition, first support body, second support body and handrail 5 all are located the homonymy of intermediate junction seat 6. The anti-pinch gap in the first embodiment includes a first anti-pinch gap between the first frame and the armrest 5 and a second anti-pinch gap between the second frame and the armrest 5.

Because set up the first anti-pinch gap between first support body and handrail 5, set up the second between second support body and handrail 5 and prevented the tong gap, consequently, even set up under the condition of handrail 5, also can prevent that the perambulator seat frame from pressing from both sides the finger in-process of folding receipts to close.

In this embodiment, the armrest 5 and the intermediate connecting seat 6 are preferably detachably connected and relatively fixed. In addition, the armrest 5 is preferably perpendicular to the intermediate connection seat 6.

As shown in fig. 4 to 12, in the present embodiment, the stroller seat frame further includes a first locking mechanism and a second locking mechanism.

First locking mechanical system has latched position and unblock position, and in first locking mechanical system's latched position, first support body and intermediate junction seat 6 are relatively fixed, and at first locking mechanical system's unblock position, first support body rotationally sets up for intermediate junction seat 6.

The second locking mechanism has a locking position and an unlocking position, the second frame body is relatively fixed with the intermediate connecting base 6 at the locking position of the second locking mechanism, and the second frame body is rotatably arranged relative to the intermediate connecting base 6 at the unlocking position of the second locking mechanism.

As shown in fig. 7 and 11, the stroller seat frame preferably further includes a transition state. In the transitional state, the relative position between the first frame body and the intermediate connection seat 6 is the same as in the folded state and the relative position between the second frame body and the intermediate connection seat 6 is the same as in the unfolded state.

The second locking mechanism is arranged in linkage with the first frame body, and is in a locking position in an unfolding state, and is in an unlocking position in a transition state under the driving of the first frame body.

In the first embodiment, the first frame body includes the first pipe frame 3 and the first pipe frame connecting seat 11. The first end of first pipe support connecting seat 11 and first pipe support 3 fixed connection, the second end of first pipe support connecting seat 11 and intermediate junction seat 6 are connected through first pivot 1 rotationally. In this embodiment, the first frame body is a backrest frame body, and the first pipe frame 3 is a backrest pipe.

As shown in fig. 4 to 12, the first locking mechanism is disposed in the first frame body and the intermediate connecting seat 6. The first locking mechanism comprises a first locking block 7, a first elastic element 13, a first pulling member 14 and a first locking groove 8. The first locking groove 8 is disposed at a first end of the intermediate connection holder 6. A first end of the first locking piece 7 is connected with the first pulling member 14 and a second end of the first locking piece 7 comprises a first locking head cooperating with the first locking groove 8. The first elastic element 13 exerts a first elastic force on the first locking piece 7 that causes the first locking head to face the first locking groove 8. In the locked position of the first locking mechanism, the first locking head is in plug-in fit with the first locking groove 8, and in the unlocked position of the first locking mechanism, the first locking head is disengaged from the first locking groove 8.

In this embodiment, the first pulling element 14 is a pulling rope, and the pulling rope is operated by an operation unit 19 provided in the first pipe rack 3. In addition, one first locking mechanism is provided at each end of the armrest 5. The operating part 19 may be a press block connected to each of the pulling ropes 14 of the two first locking mechanisms. In the unfolded state of the baby carriage seat frame, if the pressing block is not operated, the first elastic force of the first elastic element 13 acting on the first locking block 7 enables the first locking head of the first locking block 7 to be inserted into the first locking groove 8, the first locking mechanism is in a locked state, and the first frame body is fixed relative to the middle connecting seat 6; when the pressing block is pressed down, the two hauling ropes are simultaneously pulled, the pulling force of the hauling ropes overcomes the first elastic force of the corresponding first elastic element 13 acting on the first locking block 7, the first locking head is pulled out from the first locking groove 8, so that the first locking mechanism is in an unlocking state, at the moment, the first frame body is changed into a rotatable state relative to the intermediate connecting seat 6, the first frame body rotates relative to the intermediate connecting seat 6 around the first pivot 1 to be close to the armrest 5, and the switching operation of the baby carriage seat frame from the unfolding state to the transition state can be carried out.

Meanwhile, the second rack body includes a second rack 4 and a second rack coupling seat 12. The first end of second pipe support connecting seat 12 is rotatably connected with intermediate connecting seat 6 through second pivot 2, and the second end of second pipe support connecting seat 12 is fixedly connected with second pipe support 4. In this embodiment, the second frame body is a seat frame body, and the second pipe frame 4 is a seat frame pipe.

As shown in fig. 4 to 12, the second locking mechanism is disposed in the second frame body and the intermediate connecting seat 6. The second locking mechanism comprises a second locking block 9, a second resilient element 15, a second pulling member 16 and a second locking groove 10. Second locking groove 10 is provided on second pipe rack connecting seat 12. A first end of the second locking block 9 is connected with the second pulling member 16 and a second end of the second locking block 9 comprises a second locking head cooperating with the second locking groove 10. The second elastic element 13 applies a second elastic force to the second locking block 9 to make the second locking head face the second locking groove 10. In the locked position of the second lock mechanism, the second lock head is fitted into the second lock groove 10, and in the unlocked position of the second lock mechanism, the second lock head is disengaged from the second lock groove 10.

A specific linkage structure between the second locking mechanism and the first frame body will be described below with reference to fig. 4 to 12. As shown in fig. 4 to 12, the second end of the first pipe frame connecting seat 11 has a first curved slot 17 arranged around the first pivot 1, and the first end of the second pulling member 16 has a first pin 18, and the first pin 18 is located in the first curved slot 17 and is in sliding fit with the first curved slot 17. The first curved slot 17 is arranged so that the distance between the axis of the first pin 18 and the axis of the first pivot 1 in the unfolded state is greater than the distance between the axis of the first pin 18 and the axis of the first pivot 1 in the folded state. In this embodiment, the first curved groove 17 gradually approaches the axis of the first pivot shaft 1 from the first end to the second end thereof. The cooperation of the first pin 18 and the first curved slot 17 can realize the linkage between the second locking mechanism and the first frame body.

It is also preferred that in the extended state the first pin 18 abuts a first end of the first curved slot 17 and in the collapsed state the first pin 18 abuts a second end of the first curved slot 17. Thus, the engagement of the first pin 18 with the first curved slot 17 also provides a limit to the degree of rotation of the first housing relative to the intermediate connector block 6.

In this embodiment the second traction element 16 is a traction block, the first pin 18 being arranged at a first end of the traction block, a second end of the traction block being connected with a first end of the second locking block 9 by means of a hook portion cooperating with each other. As shown in fig. 9 to 12, in the unfolded state of the stroller frame, the second elastic force of the second elastic element 15 acting on the second locking block 9 causes the second locking head of the second locking block 9 to be inserted into the second locking slot 10, the second locking mechanism is in the locked state, and the second frame body is fixed relative to the intermediate connecting seat 6; when the first frame body rotates around the first pivot 1 relative to the intermediate connecting seat 6, the first curved groove 17 rotates around the first pivot 1, the first pin 18 slides relatively in the first curved groove 17, because the first curved groove 17 gradually approaches to the axis of the first pivot 1 from the first end to the second end, in the process of the rotation of the first frame body, the first pin 18 overcomes the second elastic force of the second elastic element 15 to the second locking block 9 under the driving of the first curved groove 17 and gradually approaches to the axis of the first pivot 1, the traction block and the second locking block 9 gradually approach to the axis of the first pivot 1, the second locking head gradually escapes from the second locking groove 10 until the baby carriage seat frame reaches a transition state, the second locking head is disengaged from the second locking groove 10, so that the second locking mechanism is in an unlocking state, at this time, the second frame body is converted into a rotatable state relative to the intermediate connecting seat 6, the second frame body rotates around the second pivot 2 relative to the intermediate connecting seat 6 to approach the armrest 5, so that the baby carriage seat frame can be switched from the transition state to the folding state.

Further preferably, the second end of intermediate connection seat 6 is provided with an arc-shaped second curved groove concentrically arranged around second pivot 2, the first end of second pipe support connection seat 12 is provided with a second pin, the second pin is located in the second curved groove and is in sliding fit with the second curved groove, the second pin abuts against the first end of the second curved groove in the unfolded state, and the second pin abuts against the second end of the second curved groove in the folded state.

The cooperation of the second pin and the second curved slot provides a limit to the angle of rotation of the second frame relative to the intermediate connecting base 6.

The stroller frame further comprises a support base 21 which is connected to the frame of the stroller. In this embodiment, the support seat 21 is fixedly connected to the second pipe rack connecting seat 12. Therefore, when the stroller seat frame is switched from the unfolded state to the folded state, the first frame body is firstly rotated to be perpendicular to the intermediate connecting seat 6 to reach the transition state, and then the intermediate connecting seat 6 is rotated to be perpendicular to the second frame body and the intermediate connecting seat 6 to reach the folded state around the second pivot 2 relative to the second frame body under the condition that no relative motion exists between the first frame body and the intermediate connecting seat 6.

The first embodiment of the invention also provides a baby carriage which comprises the baby carriage seat frame. Fig. 13 and 14 show a stroller having the aforementioned stroller seat frame according to a first embodiment of the present invention. In fig. 13 and 14, structures other than the stroller seat frame and the stroller frame are not shown in the drawings in order to clearly express the structures of the stroller seat frame and the connection relationship thereof to the stroller frame. As shown in fig. 13 and 14, the stroller frame is coupled to the stroller frame 30 through the support base 21 thereof.

Second embodiment

Fig. 15 and 16 show a stroller seat frame according to a second embodiment of the present invention.

As shown in fig. 15 to 16, the main difference between the second embodiment and the first embodiment is that in the second embodiment, the intermediate connecting seat 6 is fixedly connected with the supporting seat 21. Therefore, when the stroller seat frame is switched from the unfolded state to the folded state, the first frame body is firstly rotated around the first pivot 1 to be perpendicular to the intermediate connecting seat 6 to reach the transition state under the condition that the intermediate connecting seat 6 and the second frame body are not moved, and then the second frame body is rotated around the second pivot 2 to be perpendicular to the intermediate connecting seat 6 to reach the folded state under the condition that the intermediate connecting seat 6 and the first frame body are not moved.

Other parts of the second embodiment not illustrated may refer to relevant parts of the first embodiment.

Third embodiment

Fig. 17 and 18 show a stroller seat frame according to a third embodiment of the present invention.

As shown in fig. 17 to 18, the main difference between the third embodiment and the first embodiment is that the third embodiment is not provided with a handrail, and in the folded state, there is only one anti-pinch gap between the first frame body and the second frame body, i.e. the gap between the first frame body and the second frame body.

Other parts of the third embodiment not illustrated may refer to relevant parts of the first embodiment.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.

Claims

1. The utility model provides a baby carriage seat frame, its characterized in that, baby carriage seat frame includes first support body, second support body, intermediate junction seat (6), first pivot (1), second pivot (2) and second locking mechanical system, first support body with the first end of intermediate junction seat (6) is passed through first pivot (1) rotationally connects, the second support body with the second end of intermediate junction seat (6) is passed through second pivot (2) rotationally connects, baby carriage seat frame has expansion state, fold condition and transition state, in fold condition, first support body with the second support body is located the homonymy of intermediate junction seat (6) and first support body with have between the second support body and prevent pressing from both sides the hand clearance; wherein,

the second locking mechanism is provided with a locking position and an unlocking position, the second frame body and the intermediate connecting seat (6) are relatively fixed in the locking position of the second locking mechanism, and the second frame body is rotatably arranged relative to the intermediate connecting seat (6) in the unlocking position of the second locking mechanism;

the transition state, first support body with relative position between intermediate junction seat (6) with fold condition is the same and second support body with relative position between intermediate junction seat (6) with the expansion state is the same, second locking mechanism with first support body sets up in the linkage the expansion state, second locking mechanism is in its latched position transition state, second locking mechanism is in its unblock position under the drive of first support body.

2. The stroller seat frame according to claim 1, further comprising an armrest (5) disposed on the intermediate connecting seat (6), wherein the folded state comprises a first frame body, a second frame body and the armrest (5) both located on the same side of the intermediate connecting seat (6), and the anti-pinch gap comprises a first anti-pinch gap located between the first frame body and the armrest (5) and a second anti-pinch gap located between the second frame body and the armrest (5).

3. Baby carriage seat frame according to claim 1 or 2, characterized in that it further comprises a first locking mechanism having a locked position in which it is fixed with respect to the intermediate connection seat (6) and an unlocked position in which it is rotatably arranged with respect to the intermediate connection seat (6), and a support seat (21).

4. A stroller seat frame according to claim 1, wherein the first frame body comprises a first tube frame (3) and a first tube frame connecting seat (11), a first end of the first tube frame connecting seat (11) is fixedly connected with the first tube frame (3), and a second end of the first tube frame connecting seat (11) is rotatably connected with the intermediate connecting seat (6) through the first pivot (1); the second support body includes second pipe support (4) and second pipe support connecting seat (12), the first end of second pipe support connecting seat (12) with intermediate junction seat (6) pass through second pivot (2) rotationally connect, the second end of second pipe support connecting seat (12) with second pipe support (4) fixed connection.

5. Baby carriage seat frame according to claim 3, characterized in that the first locking mechanism comprises a first locking block (7), a first elastic element (13), a first pulling member (14) and a first locking groove (8), the first locking groove (8) being provided at a first end of the intermediate connection seat (6), the first end of the first locking block (7) being connected with the first pulling member (14), a second end of the first locking block (7) comprising a first locking head cooperating with the first locking groove (8), the first elastic element (13) exerting a first elastic force on the first locking block (7) to make the first locking head face the first locking groove (8), in a locking position of the first locking mechanism the first locking head cooperating with the first locking groove (8) in a plugging-in, in an unlocking position of the first locking mechanism, the first locking head is disengaged from the first locking groove (8).

6. Infant car seat frame according to claim 4, characterized in that said second locking mechanism comprises a second locking block (9), a second elastic element (15), a second pulling element (16) and a second locking groove (10), said second locking groove (10) being provided on said second frame connecting seat (12), a first end of said second locking block (9) being connected with said second pulling element (16), a second end of said second locking block (9) comprising a second locking head cooperating with said second locking groove (10), said second elastic element (15) exerting a second elastic force on said second locking block (9) to make said second locking head face said second locking groove (10), in a locking position of said second locking mechanism, said second locking head is in plugging cooperation with said second locking groove (10), in an unlocking position of said second locking mechanism, the second locking head is disengaged from the second locking groove (10).

7. A stroller seat frame according to claim 6, wherein the second end of the first frame connecting seat (11) has a first curved slot (17) arranged about the first pivot (1), and the second pulling member (16) is provided with a first pin (18), the first pin (18) being located in the first curved slot (17) and slidably engaged with the first curved slot (17), the first curved slot (17) being arranged such that the distance between the axis of the first pin (18) and the axis of the first pivot (1) in the unfolded state is greater than the distance between the axis of the first pin (18) and the axis of the first pivot (1) in the folded state.

8. Infant car seat frame according to claim 7, characterized in that in said unfolded condition said first pin (18) abuts a first end of said first curvilinear slot (17), and in said folded condition said first pin (18) abuts a second end of said first curvilinear slot (17).

9. A stroller seat frame according to claim 6, wherein the second end of the intermediate connection seat (6) is provided with a curved second curved slot concentrically arranged around the second pivot (2), and the second frame connection seat (12) is provided with a second pin which is located in the second curved slot and is in sliding engagement with the second curved slot, the second pin abutting a first end of the second curved slot in the unfolded state, and the second pin abutting a second end of the second curved slot in the folded state.

10. A stroller comprising a stroller seat frame, wherein the stroller seat frame is according to any one of claims 1 to 9.