Child carrier capable of locking steering of wheel assembly

Abstract

The utility model discloses a child carrier capable of locking a wheel assembly to steer, the child carrier can be switched between an unfolded state and a folded state for use, the child carrier can be a child cart or a child safety seat capable of being pushed to move or an infant basket capable of being pushed to move, and the child carrier comprises a carrier body, a supporting assembly and the wheel assembly, the supporting assembly is connected with the carrier body and can be folded or unfolded relative to the carrier body. The wheel set locking mechanisms are triggered in the folding process of the supporting assemblies so that the corresponding wheel assemblies can be locked relative to the supporting assemblies, the situation that the folding effect is affected due to the fact that the wheel assemblies interfere with other rod pieces of the child carrier can be avoided, and the child carrier can be folded smoothly.

Description

[Technical field]

[0001] The utility model relates to the technical field of children's safety travel products, in particular to a children's carrier with a lockable wheel assembly for steering. [Background technology]

[0002] The child carrier may be a child stroller or a pushable child safety seat. When the existing child carrier is placed upright, the wheels may rotate relative to the frame, which may cause the folded child carrier to tip over or become unstable. In particular, when the child carrier is temporarily folded for a short period of time, the folded child carrier cannot be placed upright stably, which may cause many inconveniences.

[0003] In addition, some child carriers have wheel locking mechanisms between the wheels and the frame to lock the wheels from a state where they can rotate around the frame to a state where they cannot rotate around the frame when needed or desired. However, the wheel locking mechanisms of conventional child carriers usually have the disadvantages of being complex in structure and not being able to automatically orientate; and when folding and folding the child carrier, it is difficult to orient the front wheels, and the front wheels need to be manually aligned for folding and folding, which is very inconvenient to operate.

[0004] For this reason, the present invention is studied and proposed in view of the above-mentioned problems. [Contents of the utility model]

[0005] The utility model aims to overcome the shortcomings of the prior art and provide a child carrier with a lockable wheel assembly for steering. The wheel assembly locking mechanism is triggered during the folding process of the support assembly so that the corresponding wheel assembly is locked relative to the support assembly, which can avoid interference between the wheel assembly and other rods of the child carrier to affect the folding effect, so that the child carrier can be folded smoothly.

[0006] The utility model is realized by the following technical solutions:

[0007] A child carrier with a lockable wheel assembly for steering, the child carrier being switchable between an unfolded state and a folded state, comprising:

[0008] Vehicle body 1;

[0009] A support assembly, the support assembly is connected to the carrier body 1 and can be folded or unfolded relative to the carrier body 1;

[0010] a wheel assembly connected to the support assembly;

[0011] A wheel assembly locking mechanism 5 is provided between at least one of the wheel assemblies and the support assembly. The wheel assembly locking mechanism 5 is triggered during the folding process of the support assembly so that the corresponding wheel assembly is locked relative to the support assembly.

[0012] As described above, a child carrier with a lockable wheel assembly for steering, the support assembly comprises a front foot rod 2 and a rear foot rod 3, the upper end of the front foot rod 2 is connected to the carrier body 1; the upper end of the rear foot rod 3 is connected to the carrier body 1;

[0013] The wheel assembly includes a front wheel set 21, which is connected to the lower end of the front foot rod 2 through a pivot, and the front wheel set 21 can rotate relative to the front foot rod 2 around the central axis of the pivot;

[0014] The wheel set locking mechanism 5 is located between the front leg rod 2 and the front wheel set 21, and the wheel set locking mechanism 5 is triggered during the folding process of the support assembly so that the front wheel set 21 is locked relative to the front leg rod 2 to limit the front wheel set 21 from rotating around the pivot center axis.

[0015] In the child carrier with lockable wheel assembly steering as described above, the wheel assembly locking mechanism 5 is configured to drive the front wheel assembly 21 to rotate to a preset angle relative to the front leg rod 2 when the support assembly switches from unfolding to folding relative to the carrier body 1, and when the front wheel assembly 21 is at the preset angle, the front wheel assembly 21 is locked relative to the front leg rod 2.

[0016] As described above, for a child carrier with lockable wheel assembly steering, when the wheel assembly locking mechanism 5 locks the front wheel assembly 21 relative to the front leg rod 2 , the two front wheel assemblies 21 are turned to be parallel to the side surface of the carrier body 1 .

[0017] As described above, a children's carrier with lockable wheel assembly steering, the support assembly includes a linkage assembly 4 located between a front leg rod 2 and a rear leg rod 3; the wheel assembly locking mechanism 5 is configured to be triggered by the linkage assembly 4 and actuated when the support assembly switches from an unfolded state to a folded state relative to the carrier body 1.

[0018] In the child carrier with lockable wheel assembly steering as described above, when the wheel locking mechanism 5 locks the front wheel 21 relative to the front leg rod 2, the front wheel 21 is located in front of or in front of the carrier body 1, and the front wheel 21 and the carrier body 1 can simultaneously contact the support plane.

[0019] As described above, a child carrier with a lockable wheel assembly for steering is described, wherein the front wheel assembly 21 includes a front wheel seat 211 rotatably connected to the front leg rod 2 via a pivot and a front wheel 212 arranged on the front wheel seat 211; the wheel assembly locking mechanism 5 includes a locking portion 51 arranged on the front wheel seat 211, a locking piece 52 movably arranged on the front leg rod 2, a driving piece 53 placed between the locking piece 52 and the linkage assembly 4, and a reset elastic piece 56 for driving the locking piece 52 to elastically reset, the locking portion 51 is eccentrically arranged to the pivot, and the locking piece 52 can be inserted to lock the front wheel seat 211 relative to the front leg rod 2.

[0020] As described above, in a child carrier with a lockable wheel assembly for steering, the wheel assembly locking mechanism 5 also includes a guide bevel 54 provided on the front wheel seat 211, and the locking portion 51 is located at the bottom of the guide bevel 54. When the support assembly is folded relative to the carrier body, the lower end of the locking member 52 slidably contacts the guide bevel 54 to allow the front wheel seat 211 to rotate relative to the front leg rod 2.

[0021] In the child carrier with a lockable wheel assembly for steering as described above, the driving member 53 is a rigid rod movably arranged in the front leg rod 2, and the lower end of the driving member 53 abuts against the upper end of the locking member 52. The upper end of the driving member 53 can be abutted by the linkage assembly 4 when the support assembly is folded relative to the carrier body, so that the lower end of the driving member 53 abuts against the locking member 52, and the locking member 52 is inserted into the locking portion 51 to lock the front wheel seat 211 relative to the front leg rod 2; and when the support assembly is unfolded relative to the carrier body, the reset elastic member 56 elastically presses the locking member 52 to disengage from the locking portion 51 and reset it.

[0022] In the child carrier with a lockable wheel assembly for steering as described above, the driving member 53 is a flexible rope movably arranged in the front leg rod 2, the lower end of the driving member 53 is connected to the upper end of the locking member 52, and the upper end of the driving member 53 is connected to the linkage assembly 4. When the support assembly is folded relative to the carrier body, the linkage assembly 4 loosens the driving member 53, and the locking member 52 is inserted into the locking portion 51 under the elastic resetting action of the resetting elastic member 56 to lock the front wheel seat 211 relative to the front leg rod 2; and when the support assembly is unfolded relative to the carrier body, the linkage assembly 4 pulls the driving member 53, and the lower end of the driving member 53 pulls the locking member 52 out of the locking portion 51 to release the locking state of the front wheel seat 211 relative to the front leg rod 2.

[0023] Compared with the prior art, the utility model has the following advantages:

[0024] 1. The utility model uses a wheel assembly locking mechanism that is triggered during the folding process of the support assembly to lock the corresponding wheel assembly relative to the support assembly, thereby preventing the wheel assembly from interfering with other rods of the child carrier and affecting the folding effect, and making the child carrier fold smoothly.

[0025] 2. Furthermore, the wheel locking mechanism is triggered during the folding process of the support assembly to lock the front wheel set at a preset angle relative to the front leg rod and limit the rotation of the front wheel set around the pivot center axis, thereby preventing the front wheel set from interfering with other rods of the child carrier and affecting the folding effect; in addition, it can also prevent the front wheel set of the child carrier in the folded state from rotating and colliding with other rods of the child carrier, thereby affecting its service life.

[0026] 3. When the support assembly of the utility model switches from unfolding to folding relative to the vehicle body, the wheel locking mechanism drives the front wheel assembly to automatically rotate to a preset angle relative to the front leg rod, without the need for the user to manually rotate the front wheel assembly to the preset angle, and the utility model has the characteristic of convenient folding.

[0027] 4. For the convenience of operation, when the support assembly switches from unfolding to folding relative to the vehicle body, the wheel locking mechanism is triggered by the linkage assembly and operates, which has the characteristics of simple structure and stable and reliable operation.

Brief Description of the Drawings

[0028] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0029] Figure 1 It is a side view structural schematic diagram of Example 1 of the utility model in an unfolded state.

[0030] Figure 2 This is a cross-sectional view of the wheel set locking mechanism in Example 1 of the utility model in an unlocked state.

[0031] Figure 3 This is one of the side structural schematic diagrams of Example 1 of the utility model when it is in a folded state.

[0032] Figure 4 This is the second side structural schematic diagram of the utility model embodiment 1 in the folded state.

[0033] Figure 5 This is a cross-sectional view of the wheel set locking mechanism in Example 1 of the utility model in a locked state.

[0034] Figure 6 It is a schematic diagram of the exploded structure of the wheel set locking mechanism in Example 1 of the utility model.

[0035] Figure 7 It is a side view structural schematic diagram of embodiment 2 of the utility model in an unfolded state. [Specific implementation method]

[0036] The implementation modes of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0037] Embodiment 1:

[0038] like Figure 1-6As shown, the utility model is a child carrier with a lockable wheel assembly for steering, the child carrier can be switched between an unfolded state and a folded state, the child carrier can be a child stroller or a pushable child safety seat or a pushable infant carrier, comprising: a carrier body 1, a support assembly, a wheel assembly, the support assembly is connected to the carrier body 1 and can be folded or unfolded relative to the carrier body 1; the wheel assembly is connected to the support assembly; a wheel assembly locking mechanism 5 is provided between at least one of the wheel assemblies and the support assembly, the wheel assembly locking mechanism 5 is triggered during the folding process of the support assembly so that the corresponding wheel assembly is locked relative to the support assembly. The utility model can avoid interference between the wheel assembly and the other rods of the child carrier to affect the folding effect by triggering the wheel assembly locking mechanism during the folding process of the support assembly so that the corresponding wheel assembly is locked relative to the support assembly, so that the child carrier can be folded smoothly.

[0039] Among them, the specific structure of the child carrier of the utility model can be found in: a child carrier with application number CN202222908888.1 submitted by the applicant on November 2, 2022, which will not be repeated here.

[0040] Furthermore, the support assembly includes a front foot rod 2 and a rear foot rod 3, the upper end of the front foot rod 2 is connected to the carrier body 1; the upper end of the rear foot rod 3 is connected to the carrier body 1; the wheel assembly includes a front wheel group 21, the front wheel group 21 is connected to the lower end of the front foot rod 2 through a pivot, and the front wheel group 21 can rotate relative to the front foot rod 2 around the pivot center axis; the wheel group locking mechanism 5 is located between the front foot rod 2 and the front wheel group 21, and the wheel group locking mechanism 5 is triggered during the folding process of the support assembly so that the front wheel group 21 is locked relative to the front foot rod 2 and the front wheel group 21 is restricted from rotating around the pivot center axis. In this embodiment, the wheel group locking mechanism is triggered during the folding process of the support assembly to lock the front wheel group at a preset angle relative to the front foot rod and restrict the front wheel group from rotating around the pivot center axis, so as to avoid interference between the front wheel group and the child carrier body and other rods and affect the folding effect.

[0041] The wheel locking mechanism 5 is configured to drive the front wheel set 21 to automatically rotate to a preset angle relative to the front leg rod 2 when the support assembly switches from unfolding to folding relative to the vehicle body 1, without the user having to manually operate the front wheel set to rotate to the preset angle. In order to drive the front wheel set to rotate to the preset angle accordingly, specifically, Figure 2 , 5 As shown in Figures 6 and 7, the wheel group locking mechanism 5 further includes a guide inclined portion 54 provided on the front wheel seat 211, and the locking portion 51 is located at the bottom of the guide inclined portion 54. When the support assembly is folded relative to the vehicle body, the lower end of the locking member 52 slides against the guide inclined portion 54 to allow the front wheel seat 211 to rotate relative to the front leg rod 2. In this embodiment, the bottom of the guide inclined portion 54 is located on the front of the front wheel seat 211, as shown in Figures 6 and 7. Figure 1shown.

[0042] like Figure 6 As shown, the two guiding bevels 54 are symmetrically arranged on the front wheel seat 211, the upper ends of the two guiding bevels 54 are connected, and the lower ends of the two guiding bevels 54 are connected. Therefore, during the folding process, no matter how the front wheel assembly 21 swings, the symmetrically designed guiding bevels 54 can guide the locking member 52 to cooperate with the locking portion 51, ensuring that the front wheel assembly can smoothly rotate to a preset angle and be locked.

[0043] like Figure 3 As shown, in order to make the folding more compact and the overall appearance of the child carrier neatly arranged, when the wheel group locking mechanism 5 locks the front wheel group 21 relative to the front leg rod 2, the two front wheel groups 21 turn to be parallel to the side of the carrier body 1, making the folded structure more compact.

[0044] like Figure 1 , 3 As shown in Figure 4, for easy operation, the support assembly includes a linkage assembly 4 located between the front leg rod 2 and the rear leg rod 3; the wheel locking mechanism 5 is configured to be triggered by the linkage assembly 4 and actuated when the support assembly switches from an unfolded state to a folded state relative to the vehicle body 1.

[0045] like Figure 3 , 4 As shown, in order to ensure that the vehicle can stand stably after being folded, when the wheel locking mechanism 5 locks the front wheel 21 relative to the front leg rod 2, the front wheel 21 is located in front of or in front of the vehicle body 1, and the front wheel 21 and the vehicle body 1 can contact the support plane at the same time. Figure 3 , 4 As shown, when the child carrier is folded and placed in an upright position, the bottom of the carrier body 1 and the bottom sides of the two front wheel sets 21 are respectively against the support plane, thereby forming a three-point support structure, ensuring that the child carrier stands stably and reliably, and avoiding the child carrier from standing unsteadily and tilting, rolling over, etc.

[0046] This embodiment also includes but is not limited to a retractable or rotatable handlebar connected to the carrier body. When the child carrier is in the folded state, the user can directly pull up the handlebar to make the front wheel set 21 contact the ground alone to roll and drag the child carrier. At this time, the bottom of the carrier body is separated from the support surface, which increases the diversity and applicability of use in different occasions.

[0047] like Figure 2 , 5As shown in Figures 6 and 7, for reliable locking and convenient resetting, the front wheel assembly 21 includes a front wheel seat 211 rotatably connected to the front foot rod 2 through a pivot and a front wheel 212 arranged on the front wheel seat 211; the wheel assembly locking mechanism 5 includes a locking portion 51 arranged on the front wheel seat 211, a locking member 52 movably arranged on the front foot rod 2, a driving member 53 placed between the locking member 52 and the linkage assembly 4, and a resetting elastic member 56 for driving the locking member 52 to resiliently reposition, the locking portion 51 is eccentrically arranged on the pivot, and the locking member 52 can be inserted to lock the front wheel seat 211 relative to the front foot rod 2. Among them, the resetting elastic member 56 adopts a tension spring or a compression spring according to the different setting positions. In this embodiment, the locking member 52 is a plug-in rod, and the locking portion 51 is a plug-in groove or a plug-in hole plugged with the plug-in rod.

[0048] like Figure 1 , 4 As shown, for the convenience of operation, the driving member 53 is a rigid rod movably arranged in the front foot rod 2, and the lower end of the driving member 53 abuts against the upper end of the locking member 52. The upper end of the driving member 53 can be abutted by the linkage assembly 4 when the support assembly is folded relative to the vehicle body, so that the lower end of the driving member 53 abuts against the locking member 52, and the locking member 52 is inserted into the locking portion 51 to lock the front wheel seat 211 relative to the front foot rod 2; and when the support assembly is unfolded relative to the vehicle body, the reset elastic member 56 elastically presses or elastically pulls the locking member 52 away from the locking portion 51 to reset. Among them, the driving member 53 is a rigid rod, which is conducive to improving the linkage response effect between the linkage assembly 4 and the locking member 52, while ensuring that the realized function is stable and reliable.

[0049] like Figure 1 , 4 As shown, the linkage assembly 4 is a linkage rod, the front end of which is eccentrically rotatably connected to the upper end of the front foot rod 2, the lower end of the linkage rod is rotatably connected to the rear foot rod, and the upper end of the front foot rod 2 is provided with a movable space for the linkage rod to rotate. The upper end of the driving member 53 extends into the movable space and is resisted by the linkage assembly 4 when the supporting assembly is folded relative to the carrier body.

[0050] Folding principle of embodiment 1: When the child carrier switches from the unfolded state to the folded state, the linkage assembly 4 presses the driving member 53 to slide downward relative to the front leg rod 2, and the lower end of the driving member 53 pushes the upper end of the locking member 52 to make the locking member 52 slide downward relative to the front leg rod 2. The lower end of the locking member 52 cooperates with the corresponding guiding inclined portion 54 to drive the front wheel assembly 21 to rotate around the central axis of the pivot to a preset angle. When the front wheel assembly 21 rotates to the preset angle, the lower end of the locking member 52 inserts into the locking portion 51 to lock the front wheel assembly 21 relative to the front leg rod 2. Figure 5 shown.

[0051] The unfolding principle of Example 1: When the child carrier switches from the folded state to the unfolded state, the linkage assembly 4 gradually cancels the force applied to the driving member 53. At this moment, the driving member 53 and the locking member 52 slide upward relative to the front leg rod under the elastic force of the reset elastic member 56 until the lower end of the locking member 52 is separated from the locking portion 51 and the guiding inclined portion 54, thereby releasing the locking state of the front wheel assembly relative to the front leg rod.

[0052] Embodiment 2:

[0053] The difference between Example 2 and Example 1 is that Figure 7 As shown, the driving member 53 is a flexible rope movably arranged in the front leg rod 2, and the lower end of the driving member 53 is connected to the upper end of the locking member 52, and the upper end of the driving member 53 is connected to the linkage component 4. When the support assembly is folded relative to the vehicle body, the linkage component 4 loosens the driving member 53, and the locking member 52 is inserted into the locking portion 51 under the elastic resetting action of the resetting elastic member 56 to lock the front wheel seat 211 relative to the front leg rod 2; and when the support assembly is unfolded relative to the vehicle body, the linkage component 4 pulls the driving member 53, and the lower end of the driving member 53 pulls the locking member 52 out of the locking portion 51 to release the locking state of the front wheel seat 211 relative to the front leg rod 2.

[0054] Folding principle 2 of the embodiment: When the child carrier is switched from the unfolded state to the folded state, the linkage assembly 4 loosens the driving member 53, and the locking member 52 slides downward relative to the front leg rod 2 under the elastic force of the reset elastic member 56, and the lower end of the locking member 52 cooperates with the corresponding guiding inclined portion 54 to drive the front wheel assembly 21 to rotate to a preset angle around the central axis of the pivot. When the front wheel assembly 21 rotates to the preset angle, the lower end of the locking member 52 is inserted into the locking portion 51 to lock the front wheel assembly 21 relative to the front leg rod 2.

[0055] The unfolding principle of Example 2: When the child carrier switches from the folded state to the unfolded state, the linkage assembly 4 pulls the locking member 52 to slide upward relative to the front leg rod 2 through the flexible rope, so that the lower end of the locking member 52 is separated from the locking portion 51 and the corresponding guiding inclined portion 54, thereby releasing the locking state of the front wheel group relative to the front leg rod.

Claims

1. A child carrier with a lockable wheel assembly for steering, the child carrier being switchable between an unfolded state and a folded state, characterized in that include: Vehicle body (1); A support assembly, the support assembly is connected to the carrier body (1) and can be folded or unfolded relative to the carrier body (1); a wheel assembly connected to the support assembly; A wheel assembly locking mechanism (5) is provided between at least one of the wheel assemblies and the support assembly, and the wheel assembly locking mechanism (5) is triggered during the folding process of the support assembly so that the corresponding wheel assembly is locked relative to the support assembly.

2. A child carrier with lockable wheel assembly steering according to claim 1, characterized in that The support assembly comprises a front foot rod (2) and a rear foot rod (3), the upper end of the front foot rod (2) being connected to the carrier body (1); the upper end of the rear foot rod (3) being connected to the carrier body (1); The wheel assembly comprises a front wheel group (21), the front wheel group (21) is connected to the lower end of the front foot rod (2) via a pivot, and the front wheel group (21) can rotate relative to the front foot rod (2) around the central axis of the pivot; The wheel set locking mechanism (5) is located between the front foot rod (2) and the front wheel set (21), and the wheel set locking mechanism (5) is triggered during the folding process of the support assembly so that the front wheel set (21) is locked relative to the front foot rod (2) to limit the front wheel set (21) from rotating around the pivot center axis.

3. A child carrier with lockable wheel assembly steering according to claim 2, characterized in that The wheel set locking mechanism (5) is configured to drive the front wheel set (21) to rotate to a preset angle relative to the front leg rod (2) when the support assembly switches from unfolding to folding relative to the vehicle body (1), and when the front wheel set (21) is at the preset angle, the front wheel set (21) is locked relative to the front leg rod (2).

4. A child carrier with lockable wheel assembly steering according to claim 3, characterized in that When the wheel set locking mechanism (5) locks the front wheel set (21) relative to the front leg rod (2), the two front wheel sets (21) turn to be parallel to the side of the vehicle body (1).

5. A child carrier with lockable wheel assembly steering according to claim 2, characterized in that The support assembly comprises a linkage assembly (4) located between a front foot rod (2) and a rear foot rod (3); the wheel set locking mechanism (5) is configured to be triggered by the linkage assembly (4) and actuated when the support assembly switches from an unfolded state to a folded state relative to the vehicle body (1).

6. A child carrier with lockable wheel assembly steering according to claim 2, characterized in that When the wheel set locking mechanism (5) locks the front wheel set (21) relative to the front leg rod (2), the front wheel set (21) is located at the front side or front of the vehicle body (1), and the front wheel set (21) and the vehicle body (1) can simultaneously contact the support plane.

7. A child carrier with lockable wheel assembly steering according to claim 5, characterized in that The front wheel assembly (21) comprises a front wheel seat (211) rotatably connected to the front foot rod (2) via a pivot, and a front wheel (212) disposed on the front wheel seat (211); The wheel set locking mechanism (5) comprises a locking portion (51) arranged on the front wheel seat (211), a locking piece (52) movably arranged on the front foot rod (2), a driving piece (53) disposed between the locking piece (52) and the linkage assembly (4), and a resetting elastic piece (56) for driving the locking piece (52) to resiliently reposition. The locking portion (51) is eccentrically arranged with respect to the pivot and can be inserted into the locking piece (52) to lock the front wheel seat (211) relative to the front foot rod (2).

8. A child carrier with lockable wheel assembly steering according to claim 7, characterized in that The wheel group locking mechanism (5) also includes a guiding inclined portion (54) arranged on the front wheel seat (211), and the locking portion (51) is located at the bottom position of the guiding inclined portion (54). When the support assembly is folded relative to the vehicle body, the lower end of the locking member (52) slidably contacts the guiding inclined portion (54) so ​​that the front wheel seat (211) rotates relative to the front foot rod (2).

9. A child carrier with lockable wheel assembly steering according to claim 7 or 8, characterized in that The driving member (53) is a rigid rod member movably arranged in the front foot rod (2), and the lower end of the driving member (53) abuts against the upper end of the locking member (52). When the support assembly is folded relative to the vehicle body, the upper end of the driving member (53) can be abutted by the linkage assembly (4), thereby causing the lower end of the driving member (53) to abut against the locking member (52), and the locking member (52) is inserted into the locking portion (51) to lock the front wheel seat (211) relative to the front foot rod (2); and when the support assembly is unfolded relative to the vehicle body, the reset elastic member (56) elastically presses the locking member (52) to disengage from the locking portion (51) and reset.

10. A child carrier with lockable wheel assembly steering according to claim 7 or 8, characterized in that The driving member (53) is a flexible rope movably arranged in the front foot rod (2); the lower end of the driving member (53) is connected to the upper end of the locking member (52); the upper end of the driving member (53) is connected to the linkage assembly (4); when the supporting member is folded relative to the vehicle body, the linkage assembly (4) loosens the driving member (53); the locking member (52) is inserted into the locking portion (51) under the elastic resetting action of the resetting elastic member (56) to lock the front wheel seat (211) relative to the front foot rod (2); and when the supporting member is unfolded relative to the vehicle body, the linkage assembly (4) pulls the driving member (53); the lower end of the driving member (53) pulls the locking member (52) out of the locking portion (51) to release the locking state of the front wheel seat (211) relative to the front foot rod (2).

Images