Adjustable reversing seat frame connecting mechanism and stroller frame thereof

Abstract

The utility model discloses an adjustable reversing seat frame connecting mechanism and a stroller frame thereof, the adjustable reversing seat frame connecting mechanism comprises a seat connecting frame which is transversely arranged along the front and back, a seat frame connector is movably connected with the seat connecting frame, and the seat frame connector has a use state and a non-use state; in the using state, the seat frame connector can be turned over to be higher than the upper plane of the seat connecting frame to be connected with the seat frame; in the non-use state, the seat frame connector is turned to be lower than the upper plane of the seat connecting frame, so that after the seat connecting frame is removed from the seat frame and the seat frame connector is turned to the non-use state, the seat connecting frame can well carry shopping baskets, vegetable baskets or other articles, and the use of a user is facilitated; the stroller frame can be converted into a common frame according to the requirements of use scenes, and has the advantages of being simple in structural design, convenient and fast to operate and diversified in function.

Description

Technical Field

[0001] The utility model relates to the field of children's safety travel products, in particular to an adjustable and reversible seat frame connection mechanism and a child stroller frame thereof. Background Art

[0002] Strollers typically consist of a frame and a seat. To facilitate disassembly, the seat is connected to the frame via a corresponding seat connector. Currently, many strollers have this design. However, once the seat is removed from the frame, the frame cannot be easily converted into a standard stroller, such as one used to carry a shopping basket, vegetable basket, or other items. Furthermore, even when used as a standard stroller, the seat connector, due to its fixed structure relative to the frame, can interfere with the shopping basket, vegetable basket, or other items placed therein, thus affecting its usability.

[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 deficiencies of the prior art and provide an adjustable and reversible seat frame connection mechanism and a child stroller frame thereof, comprising a seat connecting frame arranged transversely along the front and rear, the seat frame connector being movably connected to the seat connecting frame, and the seat frame connector having an in-use state and a non-use state; when in the in-use state, the seat frame connector can be flipped above the upper plane of the seat connecting frame and connected to the seat frame; when in the non-use state, the seat frame connector is flipped below the upper plane of the seat connecting frame, so that when the seat connecting frame removes the seat frame and the seat frame connector is flipped to the non-use state, the seat connecting frame can well carry a shopping basket, a vegetable basket or other items, which is convenient for users to use, so that the child stroller frame can be converted into an ordinary frame according to the needs of the use scenario, and has the characteristics of simple structural design, convenient operation and diverse functions.

[0005] In order to solve the above technical problems, the utility model provides an adjustable and reversible seat frame connection mechanism, including a seat connecting frame 1 and a seat frame connector 2, the seat connecting frame 1 is horizontally arranged along the front and rear direction, the seat frame connector 2 is movably connected to the seat connecting frame 1, the seat frame connector 2 has a use state and a non-use state, the state in which the seat frame connector 2 is flipped above the upper plane of the seat connecting frame 1 and is used to connect to the seat frame is the use state, and the state in which the seat frame connector 2 is flipped below the upper plane of the seat connecting frame 1 is the non-use state, an adjustment locking assembly 3 is provided between the seat frame connector 2 and the seat connecting frame 1 for locking the seat frame connector 2 relative to the seat connecting frame 1 at least in the use state.

[0006] As described above, an adjustable and reversible seat frame connection mechanism, the seat frame connector 2 includes a seat frame connector 21 and a frame connector 22, the seat frame connector 21 is synchronously connected to the frame connector 22 for connecting the seat frame, and the frame connector 22 is movably connected to the seat connecting frame 1 through an adjustable locking assembly 3.

[0007] As described above, in an adjustable and reversible seat frame connection mechanism, the seat frame connection member 21 is arranged upward when in use, and is arranged downward when in non-use state, and the seat frame connector 2 is locked relative to the seat connection frame 1 by the adjustable locking assembly 3 in both the use state and the non-use state.

[0008] As described above, an adjustable and reversible seat frame connection mechanism, the adjustment locking assembly 3 includes an adjustment locking portion 31 for being provided on the seat connection frame 1 and an adjustment locking portion 32 movably provided on the frame connection member 22 and for lockingly cooperating with the adjustment locking portion 31, and an adjustment locking elastic member 33 for keeping the adjustment locking portion 32 locked and cooperating with the adjustment locking portion 31 is provided between the adjustment locking portion 32 and the frame connection member 22.

[0009] As described above, in the adjustable and reversible seat frame connection mechanism, the frame connection member 22 is provided with a T-shaped slot 221, and the side of the adjustment locking member 32 has a limiting connection portion 321 that is inserted into the T-shaped slot 221 for sliding connection, and the two ends of the adjustment locking elastic member 33 are respectively in contact with the opposite sides of the T-shaped slot 221 and the adjustment locking member 32.

[0010] As described above, an adjustable and reversible seat frame connection mechanism, the frame connection member 22 is rotatably connected to the seat connection frame 1 through a pivot 222, and a guide mechanism 4 for guiding and limiting the movable path of the frame connection member 22 is provided between the frame connection member 22 and the seat connection frame 1, the guide mechanism 4 includes a guide arc groove 41 centered on the pivot 222 and a guide pin 42 guided and matched with the guide arc groove 41, the guide arc groove 41 is used to be provided on the seat connection frame 1 or the frame connection member 22, and correspondingly the guide pin 42 is provided on the frame connection member 22 or the seat connection frame 1.

[0011] As described above, in the adjustable reversing seat frame connection mechanism, the guide arc groove 41 has a use limit end 411 and a non-use limit end 412, and when the guide protruding pin 42 abuts against the use limit end 411, the seat frame connector 2 is in use state, and when the guide protruding pin 42 abuts against the non-use limit end 412, the seat frame connector 2 is in non-use state.

[0012] The present invention also provides a child stroller frame, which adopts the adjustable and reversible seat frame connecting mechanism as described above, including a front foot rod 5, a rear foot rod 6 and a push rod assembly 7, the seat connecting frame 1 includes a seat rear connecting rod 11 and a seat front connecting rod 12 slidably connected to the seat rear connecting rod 11; the lower end of the front foot rod 5 is connected to the front wheel assembly, the upper part of the front foot rod 5 is connected relative to the front part of the seat rear connecting rod 11, and the upper end of the front foot rod 5 is connected to the push rod assembly 7; the lower end of the rear foot rod 6 is connected to the rear wheel assembly, the middle part of the rear foot rod 6 is connected relative to the middle or rear part of the seat rear connecting rod 11, and the upper end of the rear foot rod 6 is directly or indirectly connected to the lower part of the push rod assembly 7.

[0013] As described above, a child stroller frame is provided with a connecting rod locking mechanism 13 between the front seat connecting rod 12 and the rear seat connecting rod 11 for locking the front seat connecting rod 12 relative to the rear seat connecting rod 11; a locking blocking mechanism 14 is provided between the seat frame connector 2 and the front seat connecting rod 12 for blocking the connecting rod locking mechanism 13 from locking the front seat connecting rod 12 when the seat frame connector 2 is adjusted to the use state and the front seat connecting rod 12 is retracted relative to the rear seat connecting rod 11.

[0014] As described above, in a child stroller frame, the locking blocking mechanism 14 is further configured such that when the seat frame connector 2 is adjusted to a non-use state and the front seat connecting rod 12 is retracted relative to the rear seat connecting rod 11, the blocking of the locking blocking mechanism 14 is limited, so that the connecting rod locking mechanism 13 locks the front seat connecting rod 12 relative to the rear seat connecting rod 11.

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

[0016] 1. The utility model includes a seat connecting frame arranged transversely along the front and back, the seat frame connector is movably connected to the seat connecting frame, and the seat frame connector has an in-use state and a non-use state; when in the use state, the seat frame connector can be flipped above the upper plane of the seat connecting frame and connected to the seat frame; when in the non-use state, the seat frame connector is flipped below the upper plane of the seat connecting frame. Therefore, when the seat connecting frame removes the seat frame and flips the seat frame connector to the non-use state, the seat connecting frame can be well used to carry shopping baskets, vegetable baskets or other items, which is convenient for users to use, so that the child stroller frame can be converted into an ordinary frame according to the needs of the use scenario, and has the characteristics of simple structural design, convenient operation and diverse functions.

[0017] 2. A guide mechanism is provided between the frame connector and the seat connector to guide and limit the movable path of the frame connector. This ensures that the frame connector rotates smoothly along the set path, and can quickly and accurately switch the seat connector to the use state or non-use state, making it easy to use.

[0018] 3. The utility model uses a locking blocking mechanism to block the connecting rod locking mechanism to lock the front seat connecting rod when the seat frame connector is adjusted to the use state and the front seat connecting rod is retracted relative to the rear seat connecting rod. The user can directly extend the front seat connecting rod relative to the rear seat connecting rod to use it as a child stroller frame without additional unlocking action. Therefore, it has the characteristics of diverse functions, reliable structural design and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a three-dimensional diagram of the seat frame connection mechanism of Example 1 of the present invention connected to the child stroller frame.

[0021] Figure 2 This is one of the exploded views of the seat frame connection mechanism in Example 1 of the present utility model.

[0022] Figure 3 This is the second exploded view of the seat frame connection mechanism in Example 1 of the present utility model.

[0023] Figure 4 This is an exploded view of the connecting rod locking mechanism in Example 1 of the present utility model.

[0024] Figure 5 This is one of the three-dimensional views of the seat frame connection mechanism of Example 2 of the present invention when connected to the child stroller frame.

[0025] Figure 6 This is the second stereoscopic view of the seat frame connection mechanism of Example 2 of the present invention connected to the child stroller frame.

[0026] Figure 7 This is one of the partial explosion diagrams of Example 2 of the present utility model.

[0027] Figure 8 This is the second partial explosion diagram of Example 2 of the present utility model. DETAILED DESCRIPTION

[0028] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings.

[0029] like Figure 1-8As shown, the utility model is an adjustable and reversible seat frame connection mechanism, including a seat connecting frame 1 and a seat frame connector 2, the seat connecting frame 1 is horizontally arranged along the front-to-back direction, the seat frame connector 2 is movably connected to the seat connecting frame 1, the seat frame connector 2 has a use state and a non-use state, the state in which the seat frame connector 2 is flipped above the upper plane of the seat connecting frame 1 and is used to connect with the seat frame is the use state, and the state in which the seat frame connector 2 is flipped below the upper plane of the seat connecting frame 1 is the non-use state, an adjustment locking assembly 3 is provided between the seat frame connector 2 and the seat connecting frame 1 for locking the seat frame connector 2 relative to the seat connecting frame 1 at least in the use state. When the present invention is in use, the seat frame connector can be flipped over to be higher than the upper plane of the seat connecting frame and connected to the seat frame; when it is not in use, the seat frame connector is flipped below the upper plane of the seat connecting frame. Therefore, when the seat connecting frame is removed from the seat frame and the seat frame connector is flipped to the non-use state, the seat connecting frame can be well used to carry shopping baskets, vegetable baskets or other items, which is convenient for users to use. The stroller frame can be converted into an ordinary frame according to the needs of the use scenario, and has the characteristics of simple structural design, convenient operation and diverse functions.

[0030] like Figure 1-3 As shown in 5-8, for the convenience of use and the realization of switching between multiple usage modes, the seat frame connector 2 includes a seat frame connector 21 and a frame connector 22. The seat frame connector 21 is movably connected to the frame connector 22 for connecting the seat frame, and the frame connector 22 is movably connected to the seat connecting frame 1 by adjusting the locking assembly 3.

[0031] like Figure 1-3 As shown in Figures 5-8, for ease of use and to achieve switching between multiple usage modes, the seat frame connector 21 is set upward when in use, and is set downward when in non-use, and the seat frame connector 2 is locked relative to the seat connecting frame 1 by the adjustable locking assembly 3 in both the use and non-use states.

[0032] like Figure 2 、 3 As shown in Figures 7 and 8, in order to facilitate adjustment and reliable locking, the adjustment locking assembly 3 includes an adjustment locking portion 31 for being arranged on the seat connecting frame 1 and an adjustment locking portion 32 movably arranged on the frame connecting member 22 and for locking with the adjustment locking portion 31. An adjustment locking elastic member 33 is provided between the adjustment locking portion 32 and the frame connecting member 22 for keeping the adjustment locking portion 32 locked with the adjustment locking portion 31.

[0033] like Figure 2 、 3As shown in Figures 7 and 8, to facilitate the installation and connection of the adjustment locking member 32, the frame connecting member 22 is provided with a T-shaped slot 221. The side of the adjustment locking member 32 has a limiting connection portion 321 that is inserted into the T-shaped slot 221 for sliding connection. The two ends of the adjustment locking elastic member 33 respectively abut against the facing sides of the T-shaped slot 221 and the adjustment locking member 32. The limiting connection portion 321 cooperates with the T-shaped slot 221 to guide the sliding path of the adjustment locking member 32, ensuring that the adjustment locking member 32 is accurately inserted into the corresponding adjustment locking portion 31.

[0034] like Figure 2 、 3 As shown in Figures 7 and 8, the frame connector 22 is rotatably connected to the seat connector 1 via a pivot 222. A guide mechanism 4 for guiding and limiting the movable path of the frame connector 22 is provided between the frame connector 22 and the seat connector 1. The guide mechanism 4 includes a guide arc groove 41 centered on the pivot 222 and a guide pin 42 guided and matched with the guide arc groove 41. The guide arc groove 41 is used to be provided on the seat connector 1 or the frame connector 22, and the guide pin 42 is correspondingly provided on the frame connector 22 or the seat connector 1, which can ensure that the frame connector rotates smoothly along the set path while quickly and accurately switching the seat connector to a use state or a non-use state, and is easy to use.

[0035] like Figure 2 、 3 As shown in Figures 7 and 8, in order to improve the stability and reliability of the structure and facilitate positioning and simplify the structure, the guide arc groove 41 has a use limit end 411 and a non-use limit end 412, and when the guide protruding pin 42 abuts against the use limit end 411, the seat bracket connector 2 is in use state, and when the guide protruding pin 42 abuts against the non-use limit end 412, the seat bracket connector 2 is in non-use state.

[0036] like Figure 1-8As shown, the utility model provides a child stroller frame, which adopts the adjustable and reversible seat frame connection mechanism as described above, including a front foot rod 5, a rear foot rod 6 and a push rod assembly 7, the seat connection frame 1 includes a seat rear connection rod 11 and a seat front connection rod 12 slidably connected to the seat rear connection rod 11; the lower end of the front foot rod 5 is connected to the front wheel assembly, the upper part of the front foot rod 5 is connected relative to the front of the seat rear connection rod 11, and the upper end of the front foot rod 5 is connected to the push rod assembly 7; the lower end of the rear foot rod 6 is connected to the rear wheel assembly, the middle part of the rear foot rod 6 is connected relative to the middle or rear of the seat rear connection rod 11, and the upper end of the rear foot rod 6 is directly or indirectly connected to the lower part of the push rod assembly 7. In this embodiment, the front seat connecting rod 12 is slidably connected to the rear seat connecting rod 11. When the stroller frame is folded, the front seat connecting rod 12 is operated to slide relative to the rear seat connecting rod 11 and retract into the inner side of the stroller frame, making the stroller frame structure more compact and the volume minimized after folding, which is convenient for subsequent transportation, storage, and packaging.

[0037] like Figure 4 、 7 As shown in Figures 8 and 9, a connecting rod locking mechanism 13 is provided between the front seat connecting rod 12 and the rear seat connecting rod 11 for locking the front seat connecting rod 12 relative to the rear seat connecting rod 11. A locking blocking mechanism 14 is provided between the seat frame connector 2 and the front seat connecting rod 12 for blocking the connecting rod locking mechanism 13 from locking the front seat connecting rod 12 when the seat frame connector 2 is adjusted to the use state and the front seat connecting rod 12 is retracted relative to the rear seat connecting rod 11. The locking blocking mechanism 14 is further configured such that when the seat frame connector 2 is adjusted to the non-use state and the front seat connecting rod 12 is retracted relative to the rear seat connecting rod 11, the blocking of the locking blocking mechanism 14 is limited, causing the connecting rod locking mechanism 13 to lock the front seat connecting rod 12 relative to the rear seat connecting rod 11. In this embodiment, when the seat frame connector 2 on the front seat connecting rod 12 is in a non-use state and the front seat connecting rod 12 is retracted relative to the rear seat connecting rod 11, the front seat connecting rod 12 is locked relative to the rear seat connecting rod 11, so that the stroller frame is converted into a rear ordinary frame. Figure 6 As shown, the seat connecting frame makes it more convenient and reliable to load corresponding items. When the seat frame connector 2 located on the front seat connecting rod 12 is in use and the front seat connecting rod 12 is retracted relative to the rear seat connecting rod 11, the front seat connecting rod 12 cannot be locked relative to the rear seat connecting rod 11. The user can directly extend the front seat connecting rod relative to the rear seat connecting rod to use it as a child stroller frame without the need for additional unlocking. Therefore, it has the characteristics of diverse functions, reliable structural design and convenient operation.

[0038] like Figure 4As shown, to ensure reliable locking, the connecting rod locking mechanism 13 includes, but is not limited to, a connecting rod locking portion 131 provided on the front seat connecting rod 12 and a connecting rod locking member 132 slidably provided on the rear seat connecting rod 11 and configured to engage with the corresponding connecting rod locking portion 131. A connecting rod locking elastic member 133 is provided between the connecting rod locking member 132 and the rear seat connecting rod 11 for driving the connecting rod locking member 132 to maintain engagement with the connecting rod locking portion 131. In this embodiment, one connecting rod locking portion 131 is located at the rear end or portion of the front seat connecting rod 12 (used when the front seat connecting rod 12 is extended), and the other connecting rod locking portion 131 is located at the front end or portion of the front seat connecting rod 12 (used when the front seat connecting rod 12 is retracted).

[0039] like Figure 4 As shown, to facilitate unlocking, the rear seat connecting rod 11 is provided with a connecting rod unlocking mechanism 15 for coordinating the unlocking action of the connecting rod locking mechanism 13. The connecting rod unlocking mechanism 15 includes, but is not limited to, a connecting rod unlocking slider 151 slidably disposed on the rear seat connecting rod 11. The connecting rod unlocking slider 151 and the connecting rod locking member 132 are each provided with a connecting rod unlocking inclined surface that cooperates with each other. A connecting rod unlocking elastic member 152 is provided between the connecting rod unlocking slider 151 and the rear seat connecting rod 11 to elastically reset the connecting rod unlocking slider 151. To unlock, the connecting rod unlocking slider 151 is operated to slide relative to the rear seat connecting rod 11. At this point, the connecting rod unlocking slider 151 and the connecting rod unlocking inclined surface of the connecting rod locking member 132 cooperate to drive the connecting rod locking member 132 downward relative to the rear seat connecting rod 11, causing the locking end of the connecting rod locking member 132 to exit the connecting rod locking portion 131.

[0040] like Figure 7 、 8 As shown, the locking blocking mechanism 14 includes a locking blocking rod 141 which is slidably provided on the front seat connecting rod 12 and is used to prevent the connecting rod locking mechanism 13 from locking the front seat connecting rod 12 relative to the rear seat connecting rod 11. A locking blocking elastic member 142 is provided between the locking blocking rod 141 and the front seat connecting rod 12 for driving the locking blocking rod 141 to elastically reset. The locking blocking mechanism 14 also includes a locking blocking pushing protrusion 143 provided on the frame connecting member 22 of the seat frame connector 2 for pushing the locking blocking rod 141. When the seat frame connector is in use (the seat frame connector is set upward), the locking blocking pushing protrusion 143 is aligned with the locking blocking rod 141 and pushes the locking blocking rod 141, so that the blocking end of the locking blocking rod 141 extends into the connecting rod locking portion 131 located in front of the seat front connecting rod 12. At this moment, when the seat front connecting rod 12 is retracted relative to the seat rear connecting rod 11, the connecting rod locking piece 132 cannot be stuck in the connecting rod locking portion 131, that is, the seat front connecting rod 12 cannot be locked.

[0041] When the seat frame connector is in the non-use state (the seat frame connector is set downward), the locking blocking pushing protrusion 143 is misaligned with the locking blocking rod 141. The locking blocking rod 141 is automatically reset under the elastic force of the locking blocking elastic member 142, so that the blocking end of the locking blocking rod 141 exits the connecting rod locking portion 131. At this time, when the front seat connecting rod 12 is retracted relative to the rear seat connecting rod 11, the connecting rod locking member 132 is stuck in the connecting rod locking portion 131.

Claims

1. A seat frame connection mechanism with adjustable reversing, characterized in that The utility model comprises a seat connecting frame (1) and a seat frame connector (2), wherein the seat connecting frame (1) is arranged transversely along the front-back direction, the seat frame connector (2) is movably connected to the seat connecting frame (1), and the seat frame connector (2) has an in-use state and a non-use state. The state in which the seat frame connector (2) is flipped above the upper plane of the seat connecting frame (1) and used for connecting with the seat frame is the in-use state, and the state in which the seat frame connector (2) is flipped below the upper plane of the seat connecting frame (1) is the non-use state. An adjustment locking assembly (3) for locking the seat frame connector (2) relative to the seat connecting frame (1) at least in the in-use state is provided between the seat frame connector (2) and the seat connecting frame (1).

2. The adjustable reversing seat frame connection mechanism according to claim 1, characterized in that The seat frame connector (2) comprises a seat frame connector (21) and a vehicle frame connector (22), wherein the seat frame connector (21) is synchronously connected to the vehicle frame connector (22) for connecting the seat frame, and the vehicle frame connector (22) is movably connected to the seat connecting frame (1) via an adjustable locking assembly (3).

3. The adjustable reversing seat frame connection mechanism according to claim 2, characterized in that The seat frame connector (21) is arranged upward when in use, and is arranged downward when in non-use. The seat frame connector (2) is locked relative to the seat connection frame (1) by the adjustment locking assembly (3) in both the use and non-use states.

4. The adjustable reversing seat frame connection mechanism according to claim 2 or 3, characterized in that The adjustment locking assembly (3) comprises an adjustment locking portion (31) for being arranged on the seat connecting frame (1) and an adjustment locking portion (32) movably arranged on the frame connecting member (22) and for lockingly cooperating with the adjustment locking portion (31); an adjustment locking elastic member (33) for keeping the adjustment locking portion (32) lockedly cooperating with the adjustment locking portion (31) is provided between the adjustment locking portion (32) and the frame connecting member (22).

5. The adjustable reversing seat frame connection mechanism according to claim 4, characterized in that The frame connecting member (22) is provided with a T-shaped sliding groove (221), the side of the adjusting locking member (32) has a limiting connection portion (321) that is inserted into the T-shaped sliding groove (221) and is slidably connected, and the two ends of the adjusting locking elastic member (33) respectively abut against the opposite sides of the T-shaped sliding groove (221) and the adjusting locking member (32).

6. The adjustable reversing seat frame connection mechanism according to claim 2, characterized in that The frame connecting member (22) is rotatably connected to the seat connecting frame (1) via a pivot (222). A guide mechanism (4) for guiding and limiting the movable path of the frame connecting member (22) is provided between the frame connecting member (22) and the seat connecting frame (1). The guide mechanism (4) includes a guide arc groove (41) centered on the pivot (222) and a guide convex pin (42) guided and matched with the guide arc groove (41). The guide arc groove (41) is used to be provided on the seat connecting frame (1) or the frame connecting member (22), and the guide convex pin (42) is correspondingly provided on the frame connecting member (22) or the seat connecting frame (1).

7. The adjustable reversing seat frame connection mechanism according to claim 6, characterized in that The guide arc groove (41) has a use limit end (411) and a non-use limit end (412), and when the guide protruding pin (42) abuts against the use limit end (411), the seat frame connector (2) is in a use state, and when the guide protruding pin (42) abuts against the non-use limit end (412), the seat frame connector (2) is in a non-use state.

8. A child stroller frame, characterized in that A seat frame connection mechanism with adjustable reversing function as claimed in any one of claims 1 to 7 is adopted, comprising a front foot rod (5), a rear foot rod (6) and a push rod assembly (7), wherein the seat connection frame (1) comprises a seat rear connection rod (11) and a seat front connection rod (12) slidably connected to the seat rear connection rod (11); The lower end of the front foot rod (5) is connected to the front wheel assembly, the upper part of the front foot rod (5) is connected to the front part of the seat rear connecting rod (11), and the upper end of the front foot rod (5) is connected to the push rod assembly (7); The lower end of the rear foot rod (6) is connected to the rear wheel assembly, the middle portion of the rear foot rod (6) is connected relative to the middle portion or rear portion of the seat rear connecting rod (11), and the upper end of the rear foot rod (6) is directly or indirectly connected to the lower portion of the push rod assembly (7).

9. A child stroller frame according to claim 8, characterized in that A connecting rod locking mechanism (13) for locking the front seat connecting rod (12) relative to the rear seat connecting rod (11) is provided between the front seat connecting rod (12) and the rear seat connecting rod (11); and a locking blocking mechanism (14) for blocking the connecting rod locking mechanism (13) from locking the front seat connecting rod (12) when the seat frame connector (2) is adjusted to a use state and the front seat connecting rod (12) is retracted relative to the rear seat connecting rod (11).

10. A child stroller frame according to claim 9, characterized in that The locking and blocking mechanism (14) is further configured such that when the seat frame connector (2) is adjusted to a non-use state and the front seat connecting rod (12) is retracted relative to the rear seat connecting rod (11), the blocking of the locking and blocking mechanism (14) is limited so that the connecting rod locking mechanism (13) locks the front seat connecting rod (12) relative to the rear seat connecting rod (11).

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