Linkage seat connector folding mechanism and baby carriage frame thereof

Abstract

The utility model discloses a linkage seat connector folding mechanism and a baby carriage frame thereof. The push rod body, the rear foot rod, the seat connector and the seat linkage piece are correspondingly connected to form a four-connecting-rod connecting mechanism, so that the seat connector can be linked to be correspondingly folded in the process that the frame containing the push rod body and the rear foot rod is switched from an unfolded use state to a folded use state, and the whole structure of the folded frame is more compact; the size is minimized, and packaging, outdoor carrying and storage are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of safe travel for children, in particular to a linked seat connector folding mechanism and a baby carriage frame thereof. Background Art

[0002] Strollers typically include a frame and a seat. To facilitate disassembly, the seat is connected to the frame via a corresponding seat connector. However, some existing seat connectors are fixedly attached to the frame, preventing the seat connector from folding in unison with the frame. This can cause interference and affect folding, or the seat may remain exposed after folding, hindering packaging, carrying, and storage.

[0003] For this reason, the present invention is studied and proposed in view of the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a linked seat connector folding mechanism and a baby carriage frame thereof, wherein the push rod body, the rear foot rod, the seat connector and the seat linkage are correspondingly connected to form a four-link connection mechanism so that the frame containing the push rod body and the rear foot rod can be linked to the seat connector and folded accordingly when switching from an unfolded use state to a folded use state, so that the overall structure of the frame after folding is more compact and the volume is minimized, which is convenient for packaging, carrying and storage.

[0005] In order to solve the above technical problems, the utility model provides a folding mechanism for a linked seat connector 5, comprising a push rod body 42, a rear foot rod 3, a seat connector 5 and a seat linkage 6. The push rod body 42, the rear foot rod 3, the seat connector 5 and the seat linkage 6 are correspondingly connected to form a four-bar connection mechanism so that the frame 100 containing the push rod body 42 and the rear foot rod 3 can be linked to the seat connector 5 to be folded accordingly when switching from an unfolded use state to a folded use state.

[0006] As described above, a folding mechanism of a linked seat connector 5 is provided, wherein the lower portion of the push rod body 42 is directly or indirectly rotatably connected to the rear foot rod 3, the front end of the seat connector 5 is directly or indirectly rotatably connected to the push rod body 42, the upper end of the seat linkage 6 is rotatably connected to the middle or rear portion of the seat connector 5, and the lower end of the seat linkage 6 is directly or indirectly rotatably connected to the rear foot rod 3.

[0007] As described above, a folding mechanism for linking the seat connector 5 is provided, wherein the seat linking member 6 is configured to link the seat connector 5 to be folded toward the rear leg rod 3 during the process of switching the vehicle frame 100 including the push rod body 42 and the rear leg rod 3 from the unfolded use state to the folded use state.

[0008] As described above, a folding mechanism for a linked seat connector 5 is provided, wherein a blocking and limiting structure 7 is provided between the seat connector 5 and the seat linkage 6 for blocking and limiting the seat connector 5 when the vehicle frame 100 including the push rod body 42 and the rear leg rod 3 is in the unfolded use state.

[0009] In the above-mentioned folding mechanism of the linked seat connector 5 , the blocking and limiting structure 7 includes blocking and limiting portions 71 respectively provided on the seat connector 5 and the seat linkage 6 and configured to block and cooperate with each other.

[0010] As described above, a folding mechanism of a linked seat connector 5 is provided, wherein the seat connector 5 includes a seat connecting seat 51 and a seat connecting member 52 for connecting to a seat frame, wherein the front end of the seat connecting seat 51 is rotatably connected to the push rod body 42, the middle or rear portion of the seat connecting seat 51 is rotatably connected to the upper end of the seat linking member 6, the lower end of the seat linking member 6 is rotatably connected to the rear foot rod 3, and the lower portion of the push rod body 42 is rotatably connected to the rear foot rod 3 directly or indirectly; a connecting member locking mechanism 8 for locking the seat connecting member 52 relative to the seat connecting seat 51 and a connecting member unlocking mechanism 9 for unlocking the linked connecting member locking mechanism 8 are provided between the seat connecting member 52 and the seat connecting seat 51.

[0011] As described above, a linked seat connector 5 folding mechanism, the connector locking mechanism 8 includes a connecting locking portion 81 provided on the seat connector 52 and a connecting locking portion 82 movably provided on the seat connecting seat 51 and used for locking with the connecting locking portion 81, and a connecting locking elastic member for elastically driving the connecting locking portion 82 to maintain locking with the connecting locking portion 81 is provided between the connecting locking portion 82 and the seat connecting seat 51; the connecting locking portion 82 is configured to be linked to its unlocking action by the connecting portion unlocking mechanism 9.

[0012] As described above, a folding mechanism of a linked seat connector 5 is provided, wherein the connecting member unlocking mechanism 9 is located on the seat connecting seat 51, and the connecting member unlocking mechanism 9 includes a connecting unlocking member 91 movably provided on the seat connecting seat 51 for directly or indirectly linking the unlocking action of the connecting locking member 82.

[0013] The present invention also provides a baby carriage frame, which can be switched between an unfolded use state and a folded use state, and adopts a folding mechanism of a linkage seat connector 5, including a lower seat connecting frame 1, a front foot rod 2, a push rod assembly 4, a frame locking mechanism and a frame folding and unlocking mechanism; the lower seat connecting frame 1 is arranged in a front-to-back direction and in a transverse direction, and is used to connect the seat frame; the lower end of the front foot rod 2 is connected to the front wheel assembly, and the upper part of the front foot rod 2 is movably connected to the lower seat connecting frame 1; the lower end of the rear foot rod 3 is connected to the rear wheel assembly, and the middle part of the rear foot rod 3 is movably connected to the lower seat connecting frame 1 The push rod assembly 4 includes a push rod body 42 and an extension rod 41, the lower end of the extension rod 41 is movably connected to the upper end of the front foot rod 2, the upper end of the extension rod 41 is connected to the lower end of the push rod body 42, and the lower part of the push rod body 42 is directly or indirectly rotatably connected to the upper end of the rear foot rod 3; the frame locking mechanism is located on the frame 100 and is used to lock the frame 100 in the expanded use state; the frame folding unlocking mechanism is located on the frame 100 and is used to link the frame locking mechanism to unlock the locked state of the frame 100 so that the frame 100 can be switched from the expanded use state to the folded use state.

[0014] In the above-mentioned baby carriage frame, during the rotation and folding process of the push rod body 42 relative to the lower seat connecting frame 1, the corresponding linked front leg rod 2 and the rear leg rod 3 are respectively folded backward and folded towards the lower seat connecting frame 1.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. In the present invention, the push rod body, the rear foot rod, the seat connector and the seat linkage are connected to form a four-bar connection mechanism so that the frame including the push rod body and the rear foot rod can be linked to the seat connector to fold when switching from the unfolded use state to the folded use state, so that the overall structure of the folded frame is more compact and the volume is minimized, which is convenient for packaging, carrying and storage.

[0017] 2. In the present invention, a blocking and limiting structure is provided between the seat connector and the seat linkage member, thereby improving the reliability of the position determination when the seat connector is connected to the seat frame, and facilitating the connection of the seat frame.

[0018] 3. During the folding process of the push rod body rotating relative to the lower seat connecting frame, the corresponding linked front foot rod and rear foot rod are respectively folded backward and folded toward the lower seat connecting frame, which has the characteristics of fast folding and unfolding.

[0019] 4. The seat connector includes a seat connector and a seat connector that are rotatably connected to each other. The user can individually operate the connector unlocking mechanism as needed to make the connector locking mechanism release the locking relationship between the seat connector and the seat connector, and then the seat connector can be folded relative to the seat connector, which can adapt to the different usage needs of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is one of the three-dimensional structural diagrams of the vehicle frame of the present invention when it is in the unfolded use state.

[0022] Figure 2 This is the second schematic diagram of the three-dimensional structure of the frame of the present invention when it is in the unfolded use state.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the frame of the present invention during the folding process.

[0024] Figure 4 It is a side structural schematic diagram of the frame of the present invention when it is in a folded state.

[0025] Figure 5 It is a schematic diagram of the exploded structure of the vehicle frame in the present utility model.

[0026] Figure 6 This is a schematic diagram of the exploded structure of the seat connector in the present invention. DETAILED DESCRIPTION

[0027] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings.

[0028] like Figure 1-6 As shown, the present invention provides a folding mechanism for a linked seat connector 5, comprising a push rod body 42, a rear foot rod 3, a seat connector 5, and a seat linkage 6. The push rod body 42, the rear foot rod 3, the seat connector 5, and the seat linkage 6 are connected to form a four-bar linkage mechanism, so that the frame 100 including the push rod body 42 and the rear foot rod 3 can be linked to the seat connector 5 and folded accordingly when the frame is switched from an expanded use state to a folded use state. In the present invention, the push rod body, the rear foot rod, the seat connector, and the seat linkage are connected to form a four-bar linkage mechanism, so that the frame including the push rod body and the rear foot rod can be linked to the seat connector and folded accordingly when the frame is switched from an expanded use state to a folded use state. This makes the overall structure of the folded frame more compact and minimizes its volume, making it easier to pack, carry, and store. It also prevents the seat connector from interfering with other components when the frame is in the folded use state.

[0029] like Figure 1-5 As shown, in order to ensure efficient and reliable linkage, the lower part of the push rod body 42 is directly or indirectly rotatably connected to the rear foot rod 3, the front end of the seat connector 5 is directly or indirectly rotatably connected to the push rod body 42, the upper end of the seat linkage 6 is rotatably connected to the middle or rear part of the seat connector 5, and the lower end of the seat linkage 6 is directly or indirectly rotatably connected to the rear foot rod 3.

[0030] In order to make the overall structure of the folded frame more compact, the seat linkage 6 is configured to link the seat connector 5 to the side of the rear leg rod 3 when the frame 100 including the push rod body 42 and the rear leg rod 3 is switched from the unfolded use state to the folded use state.

[0031] like Figure 1-5 As shown, in order to ensure reliable positioning of the seat connector when connected to the seat frame and facilitate seat frame connection, a blocking and limiting structure 7 is provided between the seat connector 5 and the seat linkage 6. The blocking and limiting structure 7 is used to block and limit the seat connector 5 when the vehicle frame 100 including the push rod body 42 and the rear leg rod 3 is in the deployed state. The blocking and limiting structure 7 includes blocking and limiting portions 71 provided on the seat connector 5 and the seat linkage 6, respectively, and interlocking with each other.

[0032] like Figure 1-6 As shown, in order to make the seat connector fold more compact, the seat connector 5 includes a seat connecting seat 51 and a seat connecting member 52 for connecting the seat frame. The front end of the seat connecting seat 51 is rotatably connected to the push rod body 42, the middle or rear part of the seat connecting seat 51 is rotatably connected to the upper end of the seat linkage 6, the lower end of the seat linkage 6 is rotatably connected to the rear foot rod 3, and the lower part of the push rod body 42 is rotatably connected to the rear foot rod 3 directly or indirectly; a connecting member locking mechanism 8 for locking the seat connecting member 52 relative to the seat connecting seat 51 and a connecting member unlocking mechanism 9 for unlocking the linkage connecting member locking mechanism 8 are provided between the seat connecting member 52 and the seat connecting seat 51. The user can operate the connecting member unlocking mechanism separately as needed to make the connecting member locking mechanism release the locking relationship between the seat connecting seat and the seat connector, and then the seat connector can be folded relative to the seat connecting seat, which can adapt to the different usage needs of the user.

[0033] like Figure 6 As shown, in order to ensure reliable locking, the connecting member locking mechanism 8 includes a connecting locking portion 81 provided on the seat connecting member 52 and a connecting locking member 82 movably provided on the seat connecting seat 51 and used for locking with the connecting locking portion 81, and a connecting locking elastic member for elastically driving the connecting locking member 82 to maintain locking cooperation with the connecting locking portion 81 is provided between the connecting locking member 82 and the seat connecting seat 51; the connecting locking member 82 is configured to be linked to its unlocking action by the connecting member unlocking mechanism 9.

[0034] like Figure 6 As shown, for convenient unlocking, the connector unlocking mechanism 9 is located on the seat connector 51. The connector unlocking mechanism 9 includes a connector unlocking member 91 movably mounted on the seat connector 51 for directly or indirectly interlocking the unlocking action of the connector locking member 82. To unlock, the user operates the connector unlocking member 91 to cause the connector locking member 82 to slide relative to the seat connector 51 until the locking end of the connector locking member 82 separates from the connector locking portion 81, thereby releasing the seat connector 52 from the seat connector 51. At this point, the seat connector 52 can be rotated and retracted relative to the seat connector 51.

[0035] like Figure 1-6 As shown, the utility model provides a baby carriage frame, which can be switched between an unfolded use state and a folded use state, and adopts a folding mechanism of a linkage seat connector 5, including a lower seat connecting frame 1, a front foot rod 2, a push rod assembly 4, a frame locking mechanism and a frame folding and unlocking mechanism; the lower seat connecting frame 1 is arranged in a front-to-back direction and in a transverse direction for connecting the seat frame; the lower end of the front foot rod 2 is connected to the front wheel assembly, and the upper part of the front foot rod 2 is movably connected to the lower seat connecting frame 1; the lower end of the rear foot rod 3 is connected to the rear wheel assembly, and the middle part of the rear foot rod 3 is movably connected to the lower seat connecting frame 1 The push rod assembly 4 includes a push rod body 42 and an extension rod 41, the lower end of the extension rod 41 is movably connected to the upper end of the front foot rod 2, the upper end of the extension rod 41 is connected to the lower end of the push rod body 42, and the lower part of the push rod body 42 is directly or indirectly rotatably connected to the upper end of the rear foot rod 3; the frame locking mechanism is located on the frame 100 and is used to lock the frame 100 in the expanded use state; the frame folding unlocking mechanism is located on the frame 100 and is used to link the frame locking mechanism to unlock the locked state of the frame 100 so that the frame 100 can be switched from the expanded use state to the folded use state. When folding, the frame folding unlocking mechanism is operated to link the frame locking mechanism to release the locked state of the frame, and then the upper part of the push rod body is operated to flip downward and fold toward the side of the lower seat connecting frame. The push rod body acts to flip the upper end of the rear foot rod downward and flip the lower end of the rear foot rod upward to fold toward the side of the lower seat connecting frame. At the same time, the push rod body drives the upper end of the front foot rod to flip forward through the extension rod, so that the lower end of the front foot rod flips backward and folds toward the side of the lower seat connecting frame.

[0036] In the utility model, the frame locking mechanism is located between the upper end of the front leg rod and the lower end of the extension rod for locking the extension rod relative to the front leg rod, and the frame folding and unlocking mechanism is located on the push rod assembly.

[0037] To ensure reliable locking and convenient unlocking, the frame locking mechanism includes, but is not limited to, a frame locking portion disposed at the upper end of the front foot bar and a frame locking member movably disposed on the extension rod 41 for locking engagement with the frame locking portion. A frame locking elastic member is disposed between the frame locking member and the extension rod 41 for elastically urging the frame locking member to maintain locking engagement with the frame locking portion. The frame folding and unlocking mechanism includes, but is not limited to, a frame unlocking member movably disposed on the push rod body 42 and a frame unlocking linkage member interposed between the extension rod 41 and the push rod body 42, the frame unlocking linkage member connecting the frame unlocking member to the frame locking member. To unlock, the frame unlocking member is operated to slide relative to the push rod body. The frame unlocking member, via the frame unlocking linkage member, drives the frame locking member to move accordingly, causing the locking end of the frame locking member to separate from the frame locking portion, thereby releasing the extension bar from its locked state relative to the front foot bar.

[0038] In order to facilitate folding and unfolding, the push rod body 42 rotates relative to the lower seat connecting frame 1 during folding and correspondingly links the front leg rod 2 and the rear leg rod 3 to fold backward and move closer to the lower seat connecting frame 1.

Claims

1. A folding mechanism for a linked seat connector (5), characterized in that The invention comprises a push rod body (42), a rear foot rod (3), a seat connector (5) and a seat linkage (6). The push rod body (42), the rear foot rod (3), the seat connector (5) and the seat linkage (6) are connected to form a four-link connection mechanism so that when the frame (100) including the push rod body (42) and the rear foot rod (3) is switched from an unfolded use state to a folded use state, the seat connector (5) can be linked to be folded accordingly.

2. A folding mechanism for a linked seat connector (5) according to claim 1, characterized in that The lower portion of the push rod body (42) is directly or indirectly rotatably connected to the rear foot rod (3), the front end of the seat connector (5) is directly or indirectly rotatably connected to the push rod body (42), the upper end of the seat linkage (6) is rotatably connected to the middle or rear portion of the seat connector (5), and the lower end of the seat linkage (6) is directly or indirectly rotatably connected to the rear foot rod (3).

3. A folding mechanism for a linked seat connector (5) according to claim 1, characterized in that The seat linkage (6) is configured to link the seat connector (5) to be folded toward one side of the rear foot rod (3) when the vehicle frame (100) including the push rod body (42) and the rear foot rod (3) is switched from an unfolded use state to a folded use state.

4. A folding mechanism for a linked seat connector (5) according to claim 1, characterized in that A blocking and limiting structure (7) is provided between the seat connector (5) and the seat linkage (6) for blocking and limiting the seat connector (5) when the vehicle frame (100) including the push rod body (42) and the rear foot rod (3) is in an unfolded use state.

5. A folding mechanism for a linked seat connector (5) according to claim 4, characterized in that The blocking and limiting structure (7) comprises blocking and limiting parts (71) respectively provided on the seat connector (5) and the seat linkage (6) and blocking and cooperating with each other.

6. A folding mechanism for a linked seat connector (5) according to any one of claims 1 to 5, characterized in that The seat connector (5) comprises a seat connecting seat (51) and a seat connecting member (52) for connecting to a seat frame, wherein the front end of the seat connecting seat (51) is rotatably connected to the push rod body (42), the middle or rear part of the seat connecting seat (51) is rotatably connected to the upper end of the seat linkage member (6), the lower end of the seat linkage member (6) is rotatably connected to the rear foot rod (3), and the lower part of the push rod body (42) is directly or indirectly rotatably connected to the rear foot rod (3); a connecting member locking mechanism (8) for locking the seat connecting member (52) relative to the seat connecting seat (51) and a connecting member unlocking mechanism (9) for unlocking the linkage connecting member locking mechanism (8) are provided between the seat connecting member (52) and the seat connecting seat (51).

7. A folding mechanism for a linked seat connector (5) according to claim 6, characterized in that The connecting member locking mechanism (8) comprises a connecting locking portion (81) provided on the seat connecting member (52) and a connecting locking member (82) movably provided on the seat connecting seat (51) and used for locking with the connecting locking portion (81); a connecting locking elastic member for elastically driving the connecting locking member (82) to maintain locking with the connecting locking portion (81) is provided between the connecting locking member (82) and the seat connecting seat (51); and the connecting locking member (82) is configured to be linked to an unlocking action of the connecting member by a connecting member unlocking mechanism (9).

8. A folding mechanism for a linked seat connector (5) according to claim 7, characterized in that The connecting member unlocking mechanism (9) is located on the seat connecting seat (51), and the connecting member unlocking mechanism (9) comprises a connecting unlocking member (91) movably arranged on the seat connecting seat (51) for directly or indirectly linking the unlocking action of the connecting locking member (82).

9. A baby carriage frame, which can be switched between an unfolded state and a folded state, characterized in that A folding mechanism of a linked seat connector (5) according to any one of claims 1 to 8 is adopted, comprising a lower seat connecting frame (1), a front foot rod (2), a push rod assembly (4), a frame locking mechanism and a frame folding and unlocking mechanism; The lower seat connecting frame (1) is arranged in a front-to-back direction and in a transverse direction, and is used for connecting the seat frame; The lower end of the front foot rod (2) is connected to the front wheel assembly, and the upper part of the front foot rod (2) is movably connected to the lower seat connecting frame (1); The lower end of the rear foot rod (3) is connected to a rear wheel assembly, and the middle portion of the rear foot rod (3) is movably connected to the lower seat connecting frame (1); The push rod assembly (4) includes a push rod body (42) and an extension rod (41), wherein the lower end of the extension rod (41) is movably connected to the upper end of the front foot rod (2), the upper end of the extension rod (41) is connected to the lower end of the push rod body (42), and the lower part of the push rod body (42) is directly or indirectly rotatably connected to the upper end of the rear foot rod (3); The frame locking mechanism is located on the frame (100) and is used to lock the frame (100) in an unfolded use state; The frame folding and unlocking mechanism is located on the frame (100) and is used to link with the frame locking mechanism to unlock the locked state of the frame (100) so that the frame (100) can be switched from an unfolded use state to a folded use state.

10. A baby carriage frame according to claim 9, characterized in that During the rotation and folding process of the push rod body (42) relative to the lower seat connecting frame (1), the corresponding linked front foot rod (2) and the rear foot rod (3) are respectively folded backward and folded close to the lower seat connecting frame (1).

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