Baby carriage frame with linkage armrests capable of being folded and unfolded

Abstract

The utility model discloses a buggy frame with a linkage handrail folded and unfolded. The buggy frame comprises a front foot rod, a rear foot rod, a push rod assembly, a sliding piece, a supporting linkage assembly and a handrail rod. The sliding piece is connected to the push rod assembly in a sliding mode. The supporting linkage assembly is rotationally connected with the front foot rod, the rear foot rod and the sliding piece. The upper end of the armrest supporting rod is rotatably connected with the armrest rod, and the lower end of the armrest supporting rod is directly or indirectly rotatably connected with the lower part of the push rod assembly, so that the armrest rod, the sliding piece, the armrest supporting rod and the push rod assembly are correspondingly connected to form a crank sliding block mechanism; the sliding piece is configured to be in linkage with the frame to be correspondingly folded through the supporting linkage assembly in the process of sliding in the direction of the upper end of the push rod assembly, and is in linkage with the grab rail to be correspondingly folded, so that the whole folding operation of the frame can be in linkage only by driving the push rod assembly to overturn backwards relative to the rear foot rod, and a user does not need to additionally operate the grab rail to fold. The folding and unfolding are convenient, and the operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to children's car technical field especially a children's car frame of linkage handrail folding.

BACKGROUND

[0002] In order to facilitate the folding process of the children's car, the handrail assembly also needs to be folded or unfolded with the frame.

[0003] Chinese patent ZL201610901503.5 discloses a foldable frame, the rear of the handrail is connected with the seat side pipe, and the rear end of the handrail is connected with the connecting rod to ensure that the handrail can be folded by linkage. However, the connecting mechanism of the above-mentioned frame needs the rear end of the handrail to extend to the connecting rod position, resulting in a longer length required for the handrail, which in turn leads to an increase in production manufacturing cost, which is not conducive to market promotion and use.

[0004] In addition, some children's cars use a handrail support rod connection mechanism to fold the handrail. In order to realize the four-bar linkage mechanism, a part needs to be added to the rear end of the handrail assembly, which results in higher production manufacturing cost, complex structure, and increased installation steps.

[0005] Therefore, the utility model is proposed to solve the above-mentioned problems.

UTILITARY MODEL CONTENT

[0006] The utility model aims at overcoming the defects of the prior art, providing a children's car frame of linkage handrail folding, which can be folded and unfolded by driving the support linkage assembly to link the frame and the handrail rod, thereby completing the overall folding operation of the frame, and has the characteristics of low manufacturing cost, convenient folding and unfolding, and easy operation.

[0007] The utility model is realized by the following technical solutions:

[0008] A children's car frame of linkage handrail folding, which can be switched between an unfolded use state and a folded use state, comprises:

[0009] A front rod 1;

[0010] A rear rod 2, the upper end of the front rod 1 being rotatably connected with the upper end of the rear rod 2;

[0011] A push rod assembly 3, the lower end of the push rod assembly 3 being rotatably connected with the upper end of the rear rod 2;

[0012] A sliding part 30, which is slidably connected to the push rod assembly 3;

[0013] A support linkage assembly 4, which is rotatably connected with the front rod 1, the rear rod 2 and the sliding part 30, respectively.

[0014] A handrail rod 6 is rotatably connected to the rear of the sliding member 30, and a handrail support rod 61 is arranged between the handrail rod 6 and the lower part of the push rod assembly 3, with the upper end of the handrail support rod 61 rotatably connected to the handrail rod 6 and the lower end of the handrail support rod 61 directly or indirectly rotatably connected to the lower part of the push rod assembly 3, so that the handrail rod 6, the sliding member 30, the handrail support rod 61 and the push rod assembly 3 form a crank slider mechanism.

[0015] The sliding member 30 is configured to fold the linkage frame through the support linkage assembly 4 and fold the linkage handrail rod 6 correspondingly when sliding in the direction of the upper end of the push rod assembly 3.

[0016] The linkage handrail folding child bicycle frame as described above, when the sliding member 30 slides in the direction of the upper end of the push rod assembly 3, the handrail support rod 61 links the handrail rod 6 to turn forward to fold the handrail rod 6 inside the push rod assembly 3.

[0017] The linkage handrail folding child bicycle frame as described above, the rear of the handrail rod 6 is rotatably connected to the inner side of the outer wall of the sliding member 30, so that the handrail rod 6 is located inside the push rod assembly 3 after being folded.

[0018] The linkage handrail folding child bicycle frame as described above, further comprising a seat frame 5 and a seat support rod 53, the seat frame 5 comprising a rear seat part 51 fixedly connected to the lower part of the push rod assembly 3 and a front seat part 52 rotatably connected to the rear seat part 51, the lower end of the seat support rod 53 being rotatably connected to the upper part of the front leg rod 1, and the upper end of the seat support rod 53 extending upward and forward to be rotatably connected to the front seat part 52.

[0019] The linkage handrail folding child bicycle frame as described above, the sliding member 30 is configured to fold the linkage frame through the support linkage assembly 4 and fold the linkage handrail rod 6 correspondingly when sliding in the direction of the upper end of the push rod assembly 3, so that the front seat part 52 moves backward to be folded inside the upper part of the rear leg rod 2, and the linkage handrail rod 6 is linked by the handrail support rod 61 to turn forward to be folded to one side of the push rod assembly 3.

[0020] The linkage handrail folding child bicycle frame as described above, further comprising a backrest rod 54, the lower end of the backrest rod 54 being rotatably connected to the rear seat part 51, and a backrest adjusting mechanism 55 being arranged between the lower part of the backrest rod 54 and the rear seat part 51 for adjusting the inclination angle of the backrest rod 54 relative to the rear seat part 51.

[0021] A child's vehicle frame with a linkage handle folding mechanism as described above, the backrest adjusting mechanism 55 comprises a plurality of backrest adjusting lock portions 551 arranged at intervals on the rear seat portion 51 and a backrest adjusting lock member 552 slidably arranged at the lower portion of the backrest rod 54 and used for locking cooperation with the corresponding backrest adjusting lock portion 551, and a backrest adjusting elastic member arranged between the backrest adjusting lock member 552 and the backrest rod 54 and used for driving the elastic reset of the backrest adjusting lock member 552.

[0022] A child's vehicle frame with a linkage handle folding mechanism as described above, when the frame is in the standing folding use state, the lower end of the rear leg rod 2 and the upper end of the push rod assembly 3 are supported on the support surface.

[0023] A child's vehicle frame with a linkage handle folding mechanism as described above, the support linkage assembly 4 comprises a rear support linkage member 41 and a front support linkage member 42; the upper end of the rear support linkage member 41 is rotatably connected with the sliding member 30, the lower portion of the rear support linkage member 41 is rotatably connected with the upper portion of the rear leg rod 2, the lower end of the rear support linkage member 41 is rotatably connected with the rear end of the front support linkage member 42, and the front end of the front support linkage member 42 is rotatably connected with the middle portion of the front leg rod 1.

[0024] A child's vehicle frame with a linkage handle folding mechanism as described above, the two rear support linkage members 41 are connected by the transverse connecting rod 411.

[0025] A child's vehicle frame with a linkage handle folding mechanism as described above, the rotating pivot between the upper end of the front leg rod 1 and the upper end of the rear leg rod 2 and the rotating pivot between the lower end of the push rod assembly 3 and the upper end of the rear leg rod 2 are arranged on different shafts so that the front leg rod 1 and the push rod assembly 3 are close to the rear leg rod 2 when the frame is in the folding use state.

[0026] A child's vehicle frame with a linkage handle folding mechanism as described above, the sliding member 30 and the push rod assembly 3 are provided with a sliding member locking mechanism for locking the sliding member 30 relative to the push rod assembly 3 and a sliding member unlocking mechanism for linkage unlocking action of the sliding member locking mechanism.

[0027] A child's vehicle frame with a linkage handle folding mechanism as described above, further comprising a folding locking mechanism 7 for locking the push rod assembly 3 relative to the rear leg rod 2 when the frame is in the folding use state; the folding locking mechanism 7 comprises a folding locking portion 71 arranged on the push rod assembly 3 and a folding locking member 72 arranged on the rear leg rod 2 and used for locking cooperation with the folding locking portion 71.

[0028] A child's vehicle frame with a linkage handle folding mechanism as described above, the folding locking portion 71 is a folding locking hanging port, and the folding locking member 72 is a folding locking hook for hanging cooperation with the folding locking hanging port.

[0029] Compared with the prior art, the utility model has the advantages of the following:

[0030] 1, the utility model discloses in the operation push rod assembly relative rear foot pole backward turning folding process, the sliding piece slides along push rod assembly upper end direction, make the sliding piece cooperate support linkage assembly linkage forefoot pole one side folding to rear foot pole, sliding piece cooperation handrail support rod linkage handrail pole turns to the front and folds to push rod assembly one side, forefoot pole, seat frame support rod and rear seat portion cooperate and make the foreseat portion be folded in rear foot pole upper inside, thereby complete the overall folding operation of the frame, for this, the utility model only needs to drive push rod assembly relative rear foot pole backward turning and can linkage overall folding operation of the frame, need not that user additionally operates seat frame and handrail rod folding, has the characteristics such as convenient folding and unfolding, convenient operation.

[0031] 2, the utility model folds handrail rod in push rod assembly inside, effectively makes the overall structure of the frame after folding more compact, volume reaches minimization, and subsequent storage, carrying are convenient.

[0032] 3, the utility model in folding process, the foreseat portion is folded in rear foot pole upper inside after moving back, and handrail rod turns to push rod assembly one side and folds, solve the situation that the overall gravity of the child stroller moves forward and is prone to whole vehicle forward rollover in prior art that seat frame and handrail rod are all turned to forefoot pole one side and fold, ensure that folding proceeds smoothly.

[0033] 4, the utility model passes through sliding piece and push rod assembly sliding direction cooperation, can guide the movement path of handrail rod and rear support linkage piece and carry out guiding operation, ensure that the whole vehicle unfolds smoothly, improve the smoothness of folding.

DRAWING DESCRIPTION

[0034] The specific embodiments of the utility model are further explained in detail below in combination with the drawings, wherein:

[0035] Figure 1 It is the side view structural schematic diagram of the utility model in the unfolded use state.

[0036] Figure 2 It is the side view structural schematic diagram of the utility model in the unfolded use state.

[0037] Figure 3 It is the side view structural schematic diagram of the utility model in the folding process.

[0038] Figure 4 It is the side view structural schematic diagram of the utility model in the folding process.

[0039] Figure 5 It is the side view structural schematic diagram of the utility model in the folding use state.

[0040] Figure 6 It is a perspective view of the utility model in the folded use state.

[0041] Figure 7 It is one of the utility model's explosion structure schematic diagram.

[0042] Figure 8 It is the second of the utility model's explosion structure schematic diagram.

[0043] Figure 9 It is the third of the utility model's explosion structure schematic diagram.

CONCRETE IMPLEMENTATION

[0044] The embodiment of the utility model will be described in detail below with reference to the drawings.

[0045] As Figures 1-9 shown, the utility model discloses a children's car frame of linkage handrail folding, the car frame can switch between the unfolded use state and the folded use state and use, including front leg 1, rear leg 2, push rod assembly 3, sliding piece 30, support linkage assembly 4, handrail 6. The upper end of front leg 1 is rotatably connected with the upper end of rear leg 2, the lower end of push rod assembly 3 is rotatably connected with the upper end of rear leg 2, sliding piece 30 is slidably connected on push rod assembly 3, support linkage assembly 4 is rotatably connected with front leg 1, rear leg 2 and sliding piece 30 respectively, the rear part of handrail 6 is rotatably connected with sliding piece 30, handrail support rod 61 is arranged between handrail 6 and the lower part of push rod assembly 3, the upper end of handrail support rod 61 is rotatably connected with handrail 6, and the lower end of handrail support rod 61 is directly or indirectly rotatably connected with the lower part of push rod assembly 3, so that handrail 6, sliding piece 30, handrail support rod 61 and push rod assembly 3 are connected to form a crank slider mechanism correspondingly, sliding piece 30 is configured to fold the car frame and linkage handrail 6 correspondingly through support linkage assembly 4 linkage during the sliding process along the upper end direction of push rod assembly 3. During the operation of push rod assembly relative to rear leg and folding backward, sliding piece slides along the upper end direction of push rod assembly, so that sliding piece cooperates with support linkage assembly to fold front leg to the side of rear leg, sliding piece cooperates with handrail support rod to fold handrail 6 to the side of push rod assembly by turning forward, and front leg, seat frame support rod and rear seat part cooperate to fold front seat part to the inner side of the upper part of rear leg, so that the overall folding operation of the car frame is completed, and therefore the utility model only needs to drive push rod assembly to fold backward relative to rear leg to linkage the overall folding operation of the car frame, without the need for users to fold seat frame and handrail, which has the characteristics of convenient folding and operation.

[0046] The sliding piece 30 is configured to slide along the upper end of the push rod assembly 3, and the support linkage assembly 4 is linked to the frame to be folded correspondingly to make the front seat part 52 move backward and be folded in the upper part of the rear leg 2, and the handrail support rod 61 is linked to the handrail rod 6 to be folded to the side of the push rod assembly 3. In the folding process, the front seat part is moved backward and folded in the upper part of the rear leg, and the handrail rod is folded to the side of the push rod assembly, which solves the problem that the seat frame and the handrail rod are folded to the side of the front leg in the prior art, the overall center of gravity of the stroller moves forward, and the stroller is prone to roll to the front side, and ensures that the folding is smoothly carried out.

[0047] As shown in Figure 1 The rear part of the handrail rod 6 is rotatably connected to the inner side of the outer wall of the sliding piece 30, which is conducive to the folding of the handrail rod 6 in the inner side of the two push rod assemblies 3, makes the overall structure of the folded frame more compact, and the thickness of the folded frame is smaller.

[0048] As shown in Figures 1-9 In order to facilitate folding and unfolding, the seat frame 5 and the seat frame support rod 53 are further included, the seat frame 5 includes a rear seat part 51 fixedly connected to the lower part of the push rod assembly 3 and a front seat part 52 rotatably connected to the rear seat part 51, the lower end of the seat frame support rod 53 is rotatably connected to the upper part of the front leg 1, and the upper end of the seat frame support rod 53 extends upward and forward to be rotatably connected to the front seat part 52. In the folding process of the push rod assembly being folded backward relative to the rear leg, the push rod assembly drives the rear seat part 51 to be correspondingly rotated and folded, the front end of the rear seat part 51 drives the front seat part 52 and the seat frame support rod 53 to move backward, so that the front seat part 52 and the seat frame support rod 53 are folded in the inner side of the upper part of the two rear legs or in the inner side of the frame, and the volume of the folded frame is minimized.

[0049] The sliding piece 30 is configured to slide along the upper end of the push rod assembly 3, and the support linkage assembly 4 is linked to the frame to be folded correspondingly to make the front seat part 52 move backward and be folded in the upper part of the rear leg 2, and the handrail support rod 61 is linked to the handrail rod 6 to be folded to the side of the push rod assembly 3. In the folding process, the front seat part is moved backward and folded in the upper part of the rear leg, and the handrail rod is folded to the side of the push rod assembly, which solves the problem that the seat frame and the handrail rod are folded to the side of the front leg in the prior art, the overall center of gravity of the stroller moves forward, and the stroller is prone to roll to the front side, and ensures that the folding is smoothly carried out.

[0050] As shown in Figures 1-9 In order to facilitate adjustment, a backrest rod 54 is further included, the lower end of the backrest rod 54 is rotatably connected to the rear seat part 51, and a backrest adjustment mechanism 55 for adjusting the inclination angle of the backrest rod 54 relative to the rear seat part 51 is arranged between the lower part of the backrest rod 54 and the rear seat part 51.

[0051] As shown in Figure 9As shown, the backrest adjusting mechanism 55 comprises a plurality of backrest adjusting lock portions 551 arranged at intervals on the rear seat portion 51 and a backrest adjusting lock member 552 slidably arranged at the lower portion of the backrest rod 54 and used for locking cooperation with the corresponding backrest adjusting lock portion 551, and a backrest adjusting elastic member arranged between the backrest adjusting lock member 552 and the backrest rod 54 and used for driving the backrest adjusting lock member 552 to elastically reset. In the adjusting process, the backrest adjusting lock member 552 is driven to slide away from the side of the backrest adjusting lock portion 551 so as to separate the backrest adjusting lock member 552 from the backrest adjusting lock portion 551 and release the locking state of the backrest rod 54, and then the backrest rod 54 is operated to be flipped forward or backward relative to the rear seat portion 51 to a preset angle position, at this moment, the backrest adjusting lock member 552 is aligned with the corresponding backrest adjusting lock portion 551, and the backrest adjusting lock member 552 is locked with the corresponding backrest adjusting lock portion 551 under the elastic force of the backrest adjusting elastic member so as to lock the backrest rod 54 relative to the rear seat portion 51.

[0052] As shown in Figure 9 , the lower portion of the backrest rod 54 and the rear seat portion 51 are provided with a backrest guide mechanism used for guiding the flipping path of the backrest rod 54, which comprises but is not limited to a backrest guide arc groove and a backrest guide block arranged between the lower portion of the backrest rod 54 and the rear seat portion 51 and capable of guiding each other, so as to ensure the smooth and reliable adjustment of the backrest rod.

[0053] As shown in Figure 5 , in order to make the frame stand stably and reliably, the lower end of the rear leg rod 2 and the upper end of the push rod assembly 3 are supported on the supporting surface when the frame is in the standing folding use state.

[0054] As shown in Figures 1-8 , in order to link reliably and smoothly, the supporting linkage assembly 4 comprises a rear supporting linkage 41 and a front supporting linkage 42, the upper end of the rear supporting linkage 41 is rotatably connected with the sliding member 30, the lower portion of the rear supporting linkage 41 is rotatably connected with the upper portion of the rear leg rod 2, the lower end of the rear supporting linkage 41 is rotatably connected with the rear end of the front supporting linkage 42, and the front end of the front supporting linkage 42 is rotatably connected with the middle portion of the front leg rod 1. When the push rod assembly 3 is flipped backward and the sliding member 30 slides along the upper end of the push rod assembly 3, the sliding member 30 drives the upper portion of the rear supporting linkage 41 to flip downward about the rotation shaft between the lower portion of the rear supporting linkage 41 and the upper portion of the rear leg rod 2, and the lower end of the rear supporting linkage 41 drives the front supporting linkage 42 to flip upward about the rotation shaft between the lower portion of the rear supporting linkage 41 and the upper portion of the rear leg rod 2, so as to drive the front leg rod 1 to flip toward the side of the rear leg rod 2 and fold.

[0055] As shown in Figure 1 , 7As shown, the two rear support linkages 41 are connected synchronously by a transverse connecting rod 411, which can improve the structural strength and synchronous movement between the two rear support linkages 41.

[0056] like Figures 1-8 As shown, in order to make the frame structure more compact when folded, the rotation pivot between the upper end of the front leg 1 and the upper end of the rear leg 2 and the rotation pivot between the lower end of the push rod assembly 3 and the upper end of the rear leg 2 are set to different axes so that the front leg 1 and the push rod assembly 3 fit close to the rear leg 2 when the frame is in the folded use state.

[0057] The sliding member 30 and the push rod assembly 3 are provided with a sliding member locking mechanism for locking the sliding member 30 relative to the push rod assembly 3, and a sliding member unlocking mechanism for triggering the unlocking action of the sliding member locking mechanism, which are not shown in the figure. The sliding member locking mechanism includes, but is not limited to, a sliding member locking hole provided on the sliding member 30 and a sliding member locking shaft slidably provided on the push rod assembly 3 and elastically insertable into the sliding member locking hole. The sliding member locking shaft is unlocked by the sliding member unlocking mechanism. Figures 1-8 As shown, the push rod assembly 3 of this utility model includes a lower push rod and an upper push rod that is telescopically or rotatably connected to the upper end of the upper push rod. An upper push rod locking mechanism is provided between the upper push rod and the lower push rod for locking the upper push rod relative to the lower push rod. An upper push rod unlocking mechanism is provided on the upper push rod for unlocking the upper push rod locking mechanism. The sliding unlocking mechanism is configured to unlock the sliding locking mechanism when the upper push rod is folded to a preset position relative to the lower push rod, making unlocking convenient.

[0058] like Figures 1-8 As shown, in order to prevent the multiple rods of the frame from rotating and colliding with each other after folding, and to facilitate reliable carrying and storage of the frame, a folding locking mechanism 7 is also included to lock the push rod assembly 3 relative to the rear leg 2 when the frame is in the folded use state; the folding locking mechanism 7 includes a folding locking part 71 provided on the push rod assembly 3 and a folding locking member 72 provided on the rear leg 2 for locking and engaging with the folding locking part 71.

[0059] For reliable locking, the folding locking part 71 is a folding locking hook, and the folding locking component 72 is a folding locking hook that engages with the folding locking buckle.

Claims

1. A child's vehicle frame with a linkage handrail folding system, the frame being switchable between an unfolded use condition and a folded use condition, characterized in that It comprises: a front leg rod (1); a rear leg rod (2), the upper end of the front leg rod (1) being rotatably connected with the upper end of the rear leg rod (2); a push rod assembly (3), the lower end of the push rod assembly (3) being rotatably connected with the upper end of the rear leg rod (2); a sliding piece (30), the sliding piece (30) being slidably connected with the push rod assembly (3); a support linkage assembly (4), the support linkage assembly (4) being rotatably connected with the front leg rod (1), the rear leg rod (2) and the sliding piece (30) respectively; an armrest rod (6), the rear part of the armrest rod (6) being rotatably connected with the sliding piece (30), an armrest support rod (61) being arranged between the armrest rod (6) and the lower part of the push rod assembly (3), the upper end of the armrest support rod (61) being rotatably connected with the armrest rod (6), the lower end of the armrest support rod (61) being directly or indirectly rotatably connected with the lower part of the push rod assembly (3), so that the armrest rod (6), the sliding piece (30), the armrest support rod (61) and the push rod assembly (3) form a crank slider mechanism correspondingly; the sliding piece (30) is configured to be folded by the linkage frame through the support linkage assembly (4) and the linkage armrest rod (6) is correspondingly folded when sliding along the direction of the upper end of the push rod assembly (3).

2. The child's vehicle frame with a linkage handrail folding system according to claim 1, characterized in that when the sliding piece (30) slides along the direction of the upper end of the push rod assembly (3), the armrest support rod (61) links the armrest rod (6) to turn forward to fold the armrest rod (6) inside the push rod assembly (3), the rear part of the armrest rod (6) being rotatably connected with the inner wall of the sliding piece (30).

3. The child vehicle frame of claim 1, wherein It also comprises a seat frame (5) and a seat frame support rod (53), the seat frame (5) comprising a rear seat part (51) fixedly connected with the lower part of the push rod assembly (3) and a front seat part (52) rotatably connected with the rear seat part (51), the lower end of the seat frame support rod (53) being rotatably connected with the upper part of the front leg rod (1), the upper end of the seat frame support rod (53) extending upward and forward to be rotatably connected with the front seat part (52).

4. A child's vehicle frame having a linkage folding handle according to claim 3, wherein the sliding piece (30) is configured to be folded by the linkage frame through the support linkage assembly (4) and the front seat part (52) is moved backward to be folded inside the upper part of the rear leg rod (2) when the sliding piece (30) slides along the direction of the upper end of the push rod assembly (3), and the armrest rod (6) is folded to one side of the push rod assembly (3) by the armrest support rod (61).

5. The child's vehicle frame with linked handrail folding according to claim 3, characterized in that It also comprises a backrest rod (54), the lower end of the backrest rod (54) being rotatably connected with the rear seat part (51), a backrest adjusting mechanism (55) being arranged between the lower part of the backrest rod (54) and the rear seat part (51) to adjust the inclination angle of the backrest rod (54) relative to the rear seat part (51).

6. A child's vehicle frame having a linkage folding handle according to claim 5, wherein the backrest adjusting mechanism (55) comprises a plurality of backrest adjusting lock parts (551) arranged at intervals on the rear seat part (51) and a backrest adjusting lock piece (552) slidably arranged at the lower part of the backrest rod (54) to lock with the corresponding backrest adjusting lock part (551), a backrest adjusting elastic piece being arranged between the backrest adjusting lock piece (552) and the backrest rod (54) to drive the backrest adjusting lock piece (552) to be elastically reset.

7. A child's vehicle frame having a linkage folding handle according to any one of claims 1 to 6, wherein The support linkage assembly (4) comprises a rear support linkage (41) and a front support linkage (42); the upper end of the rear support linkage (41) is rotatably connected with the sliding member (30), the lower part of the rear support linkage (41) is rotatably connected with the upper part of the rear leg (2), the lower end of the rear support linkage (41) is rotatably connected with the rear end of the front support linkage (42), and the front end of the front support linkage (42) is rotatably connected with the middle part of the front leg (1).

8. A child's vehicle frame having a linkage folding handle according to any one of claims 1 to 6, wherein The rotating pivots between the upper end of the front leg (1) and the upper end of the rear leg (2) and between the lower end of the push rod assembly (3) and the upper end of the rear leg (2) are arranged on different axes so that the front leg (1) and the push rod assembly (3) are close to the rear leg (2) when the frame is in the folded use state.

9. A child's vehicle frame having a linkage folding handle according to any one of claims 1 to 6, wherein The sliding member (30) and the push rod assembly (3) are provided with a sliding member locking mechanism for locking the sliding member (30) relative to the push rod assembly (3) and a sliding member unlocking mechanism for linkage unlocking action of the sliding member locking mechanism.

10. A child's vehicle frame having a linkage folding handle according to any one of claims 1 to 6, characterised in that The folding locking mechanism (7) for locking the push rod assembly (3) relative to the rear leg (2) when the frame is in the folded use state is further included; the folding locking mechanism (7) comprises a folding locking part (71) arranged on the push rod assembly (3) and a folding locking member (72) arranged on the rear leg (2) and used for locking cooperation with the folding locking part (71).

Images