vehicle

Abstract

This invention relates to a vehicle comprising a vehicle support frame, the vehicle support frame including a first support frame, a second support frame, a connecting seat, and an adjusting seat, the connecting seat being fixedly disposed on the upper part of the first support frame; the upper part of the second support frame being rotatably connected to the adjusting seat, the adjusting seat being movably connected to the connecting seat, the adjusting seat having at least a first height position and a second height position on the connecting seat, the distance between the lower parts of the first support frame and the lower parts of the second support frame in the front-rear direction changing when the adjusting seat is switched from the first height position to the second height position, the vehicle support frame switching from a first form to a second form, the vehicle's usage mode is no longer limited, and the riding experience is enriched.

Description

Technical Field

[0001] This invention relates to a vehicle. Background Technology

[0002] In the existing technology, vehicles provide convenience for people's lives. For example, trolleys facilitate people's outdoor travel. However, most vehicles on the market have limited functions and single usage modes, which limits the applicable usage scenarios of the vehicles. This restricts the frequency of use of the vehicles, reduces the utilization rate of the vehicles, and causes a certain degree of resource waste. Summary of the Invention

[0003] The purpose of this invention is to provide a new vehicle.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is: a vehicle, comprising a vehicle support, wherein the vehicle support includes a first support and a second support, and the vehicle support further includes: A connecting seat is fixedly disposed on the upper part of the first bracket; An adjusting seat is provided, the upper part of the second bracket is rotatably connected to the adjusting seat, and the adjusting seat is movably connected to the connecting seat. The adjusting seat has at least a first height position and a second height position on the connecting seat. When the adjusting seat changes from the first height position to the second height position, the distance between the lower part of the first bracket and the lower part of the second bracket in the front-back direction changes, and the vehicle bracket changes from the first form to the second form.

[0005] In some embodiments, when the vehicle is in the deployed state, the length extension directions of the first bracket and the second bracket form an angle α, and the angle α changes when the adjustment seat changes from the first height position to the second height position.

[0006] In some embodiments, when the vehicle support is transformed from the first form to the second form, the angle between the first support and the horizontal plane remains unchanged, while the angle between the second support and the horizontal plane changes.

[0007] In some embodiments, the adjusting seat is slidably disposed on the connecting seat in the vertical direction, wherein when the vehicle support is transformed from the first form to the second form, the position of the connecting seat remains unchanged, and the adjusting seat slides relative to the connecting seat to transform from the first height position to the second height position.

[0008] In some embodiments, the vehicle support further includes a connecting assembly movably connected between the first support and the second support; wherein the connecting assembly includes a connecting frame, one end of which is rotatably connected to the first support, and the other end of which is rotatably connected to the second support.

[0009] In some embodiments, the adjusting seat and the connecting seat are slidably connected in the vertical direction, and a guide structure is provided between the adjusting seat and the connecting seat to provide relative sliding guidance between the two in the vertical direction.

[0010] In some embodiments, the guide structure includes a guide groove slidably disposed on the connecting seat in a vertical direction, the adjusting seat extending in a vertical direction and slidably engaging with the guide groove, wherein the guide groove is disposed through the upper part, such that the upper end of the adjusting seat protrudes upward from the guide groove.

[0011] In some embodiments, the guide groove is disposed downward through the ground, such that the lower end of the adjusting seat can be exposed downward through the guide groove.

[0012] In some embodiments, the adjusting seat and the connecting seat are slidably connected in the vertical direction, and a locking mechanism is provided between the adjusting seat and the connecting seat to lock the adjusting seat at the first height position or the second height position.

[0013] In some embodiments, the first height position is higher than the second height position in the vertical direction. When the adjustment seat is at the first height position, the lower part of the first bracket and the lower part of the second bracket have a first distance in the front-back direction. When the adjustment seat is at the second height position, the lower part of the first bracket and the lower part of the second bracket have a second distance in the front-back direction, wherein the first distance is smaller than the second distance.

[0014] In some embodiments, the adjusting seat always extends in a vertical direction, and the carrier further includes a bearing device disposed on the adjusting seat, wherein the height of the bearing device is adjusted accordingly when the height of the adjusting seat changes.

[0015] In some embodiments, the support device has a support frame rotatably connected to the adjustment seat, such that the support device can switch between a seated use mode providing sitting support and a bassinet use mode providing reclining support.

[0016] In some embodiments, the support device includes a support member connected to the support frame, the support device being in the bassinet usage mode, the support member extending at least partially in a horizontal direction to provide lying support; the carrier support also includes a support frame disposed between the first support and the second support, the support member being supported on the support frame when the adjustment seat is in the second height position.

[0017] In some embodiments, the support frame includes a first support frame, which is movably connected to or detachably connected to the first bracket. When the adjustment seat is in the second height position, the first support frame extends horizontally from the first bracket toward the second bracket. When the carrying device is in the bassinet usage mode, the carrying member is supported on the first support frame.

[0018] In some embodiments, the support frame includes a second support frame disposed on the second support, the second support frame having at least a horizontal state extending horizontally from the second support in a direction away from the first support, and the support device being in the bassinet usage mode, the support member being supported on the second support frame.

[0019] In some embodiments, the second support frame is rotatably connected to the second bracket, and the vehicle bracket is further provided with a linkage assembly to drive the second support frame to rotate and retract relative to the second bracket when the first bracket and the second bracket retract towards each other; the linkage assembly includes a connecting frame, one end of which is rotatably connected to the first bracket, and the other end of which is rotatably connected to the second bracket; the linkage assembly further includes a drive rod rotatably connected between the connecting frame and the second support frame.

[0020] In some embodiments, the vehicle further includes a first wheel assembly and a second wheel assembly, the first wheel assembly being disposed at the bottom of the first support; the second wheel assembly being disposed at the bottom of the second support.

[0021] In some embodiments, the vehicle further includes a push rod frame rotatably connected to the vehicle support, the push rod frame having a forward pushing state extending obliquely upward from front to back, and a reverse pushing state extending obliquely upward from back to front.

[0022] In some embodiments, the vehicle further includes a push rod frame, which is rotatably connected to the vehicle support about a first rotation center line. The first rotation center line is spaced apart from the connecting seat in the front-rear direction. A push rod locking structure is provided between the connecting seat and the push rod frame to cooperate with each other.

[0023] In some embodiments, the push rod holder has a first working state and a second working state. In the first working state, the push rod holder extends obliquely upward from the position of the first rotation center line toward the connecting seat, and the push rod holder is connected to the connecting seat and locked to the vehicle bracket by the push rod locking structure. In the second working state, the push rod holder disengages from the connecting seat and is able to rotate relative to the vehicle bracket, and the push rod holder extends obliquely upward from the first rotation center line in a direction away from the connecting seat.

[0024] In some embodiments, the lower part of the push rod holder is rotatably connected to the lower part of the first support about the first rotation center line, the push rod holder is in a first working state, and the length extension direction of the push rod holder is parallel or approximately parallel to the length extension direction of the first support.

[0025] In some embodiments, the push rod locking structure includes a first locking member and a mating member that can cooperate with each other. The first locking member is fixedly disposed on the connecting seat, and the mating member is movably disposed on the push rod frame. The mating member and the first rotation center line are spaced apart along the length direction of the push rod frame. The mating member is movably disposed along the length direction of the push rod frame and moves between a first position and a second position. In the first working state, when the mating member is in the first position, the first locking member and the mating member cooperate to restrict the push rod frame from rotating relative to the carrier support. When the mating member is in the second position, the mating member disengages from the first locking member so that the push rod frame can rotate and disengage from the connecting seat.

[0026] Due to the application of the above technical solution, the present invention has the following advantages: The vehicle of the present invention has a first form and a second form in its vehicle support. By driving the adjustment seat to switch between the first height position and the second height position, the distance between the lower part of the first support and the lower part of the second support can be changed, thereby enabling the vehicle to switch between the first form and the second form. The usage mode of the vehicle is no longer limited, and the conversion principle of the vehicle is simple, convenient for users, and can improve the riding experience of passengers. Attached Figure Description

[0027] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Appendix Figure 1 This is a schematic diagram of a trolley according to a specific embodiment of the present invention; Appendix Figure 2 For the appendix Figure 1 A diagram illustrating the use of the stroller in a bassinet configuration, with the carrier in place. Appendix Figure 3 For the appendix Figure 2 Side view of the cart; Appendix Figure 4 For the appendix Figure 3 A schematic diagram showing the adjusting seat at its first height position; Appendix Figure 5 For the appendix Figure 2 A schematic diagram of the stroller in the second mode; Appendix Figure 6 A schematic diagram of a trolley according to another embodiment; Appendix Figure 7 For the appendix Figure 6 A diagram illustrating the use of the stroller in a bassinet configuration, with the carrier in place. Appendix Figure 8 For the appendix Figure 7 A schematic diagram showing the adjusting seat at the second height position; Appendix Figure 9 For the appendix Figure 8 A schematic diagram of the stroller in the second mode; Appendix Figure 10 This is a schematic diagram of a connecting seat and an adjusting seat according to a specific embodiment; Appendix Figure 11 For the appendix Figure 10 A schematic diagram of the adjustment seat from another perspective; Appendix Figure 12 For the appendix Figure 3 A schematic diagram of the trolley after longitudinal sectioning along the push rod; Appendix Figure 13 For the appendix Figure 12 Enlarged view of point A in the middle; Appendix Figure 14 This is a schematic diagram showing the connection seat and push rod after partial disassembly. Appendix Figure 15 For the appendix Figure 14 A schematic diagram of the exploded structure of the middle part; Appendix Figure 16 This is a partially exploded view of the trolley canopy assembly according to a specific embodiment; Appendix Figure 17 For the appendix Figure 16 A diagram from another perspective; Appendix Figure 18 This is a schematic diagram of a trolley with a tray installed according to a specific embodiment; Appendix Figure 19 This is an exploded view of a tray assembly according to a specific embodiment; Appendix Figure 20This is a schematic diagram of a trolley according to a specific embodiment, wherein the support pad is in a second use state, and parts of the support frame are hidden. Appendix Figure 21 For the appendix Figure 20 Schematic diagram of the central support pad; Appendix Figure 22 For the appendix Figure 20 A top view of the trolley in its first use state with the support pad in place; Appendix Figure 23 For the appendix Figure 22 Schematic diagram of the central support pad; Appendix Figure 24 For the appendix Figure 23 A diagram illustrating the removal of the support pad; Appendix Figure 25 A schematic diagram of a push rod holder according to a specific embodiment; Appendix Figure 26 This is a schematic diagram of the third locking element and the unlocking mechanism in a specific embodiment; Appendix Figure 27 For the appendix Figure 26 A schematic diagram showing the unlocking mechanism moving to the third position; In the above figures: 100, frame; 200, load-bearing device; 201, mounting base; 2011, support part; 202, second locking element; 2021, second locking part; 2022, second inclined surface; 203, support pad; 2031, first pad; 2032, second pad; 2033, third pad; 2034, first connection position; 2035, second connection position; 204, load-bearing cloth cover; 210, load-bearing space; 220, accommodating space; 2201, connecting port; 300, wheel assembly; 301, first wheel assembly; 302, second wheel assembly; 1. First bracket; 2. Second bracket; 3. Connecting frame; 31. Drive rod; 4. Connecting seat; 41. Guide groove; 42. Limiting slot; 43. First locking element; 431. Locking hook; 4311. Extension; 4312. Hook; 4313. Hook groove; 4314. Pushing slope; 432. Base; 44. Connecting part; 45. Support part; 5. Adjusting seat; 51. Limiting block; 52. Unlocking element; 6. Push rod frame; 61. Push rod; 611. First push rod; 612. Second push rod; 62. Mating part; 621. First locking groove; 6211. Opening; 63. First elastic element; 64. Operating element; 65. Linkage element; 66. Grip part; 671 6711. Third locking component; 672. Locking end; 681. Limiting component; 682. Unlocking component; 683. Limiting groove; 684. Clearance groove; 685. Driving surface; 7. Enclosure frame; 81. First support frame; 82. Second support frame; 9. Canopy assembly; 91. Canopy rod; 92. Support component; 921. First end; 922. Second end; 923. Second locking groove; 9231. First inclined surface; 10. Tray assembly; 101. Handrail frame; 1011. Connecting end; 1012. Side rod; 1013. Crossbar; 1014. Slot; 1015. Second connecting structure; 1016. Third connecting structure; 102. Tray; 1021. Fourth connecting structure. Detailed Implementation

[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is for the purpose of aiding understanding the present invention, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] See Figures 1 to 5 The vehicle shown includes a vehicle support frame, which includes a first support frame 1 and a second support frame 2. In this embodiment, the vehicle support frame further includes a connecting seat 4 and an adjusting seat 5, wherein the connecting seat 4 is fixedly disposed on the upper part of the first support frame 1, the upper part of the second support frame 2 is rotatably connected to the adjusting seat 5, and the adjusting seat 5 is movably connected to the connecting seat 4.

[0031] In this embodiment, the adjusting seat 5 has at least a first height position and a second height position on the connecting seat 4. When the adjusting seat 5 changes from the first height position to the second height position, the distance between the lower part of the first support 1 and the lower part of the second support 2 in the front-rear direction changes, and the vehicle support changes from the first form to the second form. In this embodiment, the vehicle is supported by the first support 1 and the second support 2. By driving the adjusting seat 5 to move relative to the connecting seat 4, the height position of the adjusting seat 5 changes, which can drive the second support 2 to rotate relative to the adjusting seat 5, thereby adjusting the distance between the lower part of the first support 1 and the lower part of the second support 2.

[0032] In this embodiment, the vehicle support also includes a connecting assembly, which is movably connected between the first support 1 and the second support 2. The connecting assembly can maintain the relative stability of the first support 1 and the second support 2. Specifically, in this embodiment, the connecting assembly includes a connecting frame 3, one end of which is rotatably connected to the first support 1, and the other end of which is rotatably connected to the second support 2.

[0033] In this embodiment, see Figures 1 to 5 As shown, the carrier is a trolley, the carrier support is a frame 100, and the trolley also includes a wheel assembly 300 disposed at the bottom of the frame 100. Specifically, the wheel assembly 300 includes a first wheel assembly 301 and a second wheel assembly 302. The first wheel assembly 301 is disposed at the bottom of the first support 1, and the second wheel assembly 302 is disposed at the bottom of the second support 2. In this embodiment, when the adjusting seat 5 is switched from a first height position to a second height position, the distance between the first wheel assembly 301 and the second wheel assembly 302 in the front-to-back direction changes.

[0034] In some embodiments, the vehicle is a tool with a carrying function, such as a seat, cradle, or bed.

[0035] In this embodiment, the trolley also includes a support device 200 mounted on the frame 100. The support device 200 is connected to the adjustment seat 5. When the adjustment seat 5 is switched between the first height position and the second height position, the height of the support device 200 also changes, and at the same time, the distance between the first wheel assembly 301 and the second wheel assembly 302 also changes.

[0036] Specifically, in this embodiment, the first height position is higher than the second height position in the vertical direction. When the adjusting seat 5 is in the first height position, the lower part of the first support 1 and the lower part of the second support 2 have a first distance in the front-back direction. Specifically, the first wheel assembly 301 and the second wheel assembly 302 have a first distance in the front-back direction. When the adjusting seat 5 is in the second height position, the lower part of the first support 1 and the lower part of the second support 2 have a second distance in the front-back direction. Specifically, the first wheel assembly 301 and the second wheel assembly 302 have a second distance in the front-back direction. The first distance is smaller than the second distance. When the adjusting seat 5 changes from the first height position to the second height position, see [reference needed]. Figure 3 , Figure 4 As shown, when the supporting device 200 moves downward, the distance between the first wheel assembly 301 and the second wheel assembly 302 increases, thus lowering the center of gravity of the trolley and increasing its wheelbase, resulting in greater stability. When the adjusting seat 5 changes from the second height position to the first height position, the supporting device 200 moves upward, decreasing the distance between the first wheel assembly 301 and the second wheel assembly 302. This raises the center of gravity of the trolley and reduces the wheelbase, increasing the trolley's maneuverability.

[0037] In this embodiment, when the trolley is in its unfolded state, the length extension directions of the first support 1 and the second support 2 form an angle α. When the adjusting seat 5 changes from a first height position to a second height position, the angle α changes. When the adjusting seat 5 changes between different height positions, the angle α between the first support 1 and the second support 2 changes, thereby adjusting the distance between the first wheel assembly 301 and the second wheel assembly 302. Specifically, in this embodiment, when the adjusting seat changes from the first height position to the second height position, the angle α increases.

[0038] In this embodiment, when the frame 100 transitions from the first form to the second form, the angle between the first support 1 and the horizontal plane remains unchanged, while the angle between the second support 2 and the horizontal plane changes. When the frame 100 transitions between the first form and the second form, the state of the first support 1 remains unchanged, while the second support 2 moves upward or downward and rotates.

[0039] In this embodiment, the adjusting seat 5 is slidably mounted on the connecting seat 4 in the vertical direction, and the switching between the first height position and the second height position is achieved by sliding the adjusting seat 5. In this embodiment, when the frame 100 switches from the first form to the second form, the position of the connecting seat 4 remains unchanged, and the adjusting seat 5 slides relative to the connecting seat to switch from the first height position to the second height position.

[0040] In some embodiments, the adjusting seat 5 is detachably connected to the connecting seat 4, and the adjusting seat 5 is switched between a first height position and a second height position by detaching and reconnecting the adjusting seat 5 to the connecting seat 4. In other embodiments, the adjusting seat 5 is length-adjustable, such as being telescopic, so that the height position can be adjusted on the connecting seat 4.

[0041] In this embodiment, the adjusting seat 5 extends vertically; specifically, the adjusting seat 5 always extends vertically, and the adjusting seat 5 is slidably connected to the connecting seat 4 along its own length. In this embodiment, a guide structure is provided between the adjusting seat 5 and the connecting seat 4 to provide relative sliding guidance in the vertical direction. See also... Figure 10 , Figure 11 As shown, the guide structure includes a guide groove 41 disposed on the connecting seat 4 in the vertical direction, and the adjusting seat 5 is slidably engaged with the guide groove 41 in the vertical direction.

[0042] In this embodiment, the guide groove 41 is provided through upwards, so that the upper end of the adjusting seat 5 protrudes upwards through the guide groove 41. In this embodiment, the guide groove 41 is also provided through downwards, so that the lower end of the adjusting seat 5 protrudes downwards through the guide groove 41.

[0043] In this embodiment, a locking mechanism is provided between the adjusting seat 5 and the connecting seat 4 to lock the adjusting seat 5 at a first height position or a second height position. In some embodiments, one of the adjusting seat 5 and the connecting seat 4 is provided with a limiting block 51, and the other is provided with a limiting slot 42. The two can be locked together by the cooperation of the limiting block 51 and the limiting slot 42. See also Figure 10 , Figure 11 As shown, in this embodiment, the adjusting seat 5 is provided with a limiting block 51, and the connecting seat 4 is provided with a limiting slot 42. When the limiting block 51 is inserted into the limiting slot 42, the adjusting seat 5 is locked relative to the connecting seat 4.

[0044] In this embodiment, the limiting block 51 is movably disposed between a first position and a second position. When the limiting block 51 is in the first position, it is inserted into the limiting slot 42, locking the adjusting seat 5 and the connecting seat 4. When the limiting block 51 is in the second position, it retracts from the limiting slot 42, allowing the adjusting seat 5 to slide relative to the connecting seat 4. In this embodiment, the adjusting seat 5 is also provided with an unlocking member 52, which is linked to the limiting block 51. The unlocking member 52 can drive the limiting block 51 to move to the second position, thereby releasing the lock between the adjusting seat 5 and the connecting seat 4.

[0045] In this embodiment, the support device 200 includes a support frame rotatably connected to the adjustment seat 5, allowing the support device 200 to switch between a seat usage mode providing sitting support and a bassinet usage mode providing reclining support. The support device includes a support member connected to the support frame. Specifically, the support frame includes a surrounding frame 7 and a support member disposed on the surrounding frame 7, with the surrounding frame 7 rotatably connected to the adjustment seat 5. In this embodiment, two adjustment seats 5 are spaced apart on the frame 100, the surrounding frame 7 is disposed between the two adjustment seats 5, and both sides of the surrounding frame 7 are rotatably connected to the two adjustment seats 5 about a rotation center line extending in the same direction.

[0046] In this embodiment, in the bassinet usage mode, at least a portion of the support member extends horizontally to provide lying support. Specifically, see... Figure 2 , Figure 5 As shown, in the bassinet usage mode, the load-bearing component is located below the enclosure 7 and cooperates with the enclosure 7 to form an upward-facing load-bearing space. See also Figure 1 As shown, in the seating mode, the frame 7 extends obliquely in the vertical direction, forming a sitting space with an opening facing forward or backward between the frame 7 and the support member. In some embodiments, the support member is a fabric cover fixed to the frame 7. In the bassinet mode, the fabric cover surrounds the periphery and bottom of the support space; in the seating mode, the fabric cover surrounds the periphery and rear of the support space. In other embodiments, the support member is a combination of a fabric cover and a support plate. In the bassinet mode, the fabric cover surrounds the periphery of the support space, and the support plate is located below the support space.

[0047] In some embodiments, preferably, when the adjustable seat 5 is in the first height position, the carrier 200 is in seat mode, allowing the child to sit upright. Combined with the frame 100, which has a high center of gravity and a narrow wheelbase, the stroller can move flexibly. When the adjustable seat 5 is in the second height position, the carrier 200 is in bassinet mode, allowing the child to lie down. Combined with the frame 100, which has a low center of gravity and a wide wheelbase, this provides a more stable and comfortable riding experience for the child. In other embodiments, regardless of whether the adjustable seat 5 is in the first or second height position, the carrier 200 can be in either seat or bassinet mode.

[0048] In this embodiment, the frame 100 further includes a support frame disposed between the first support 1 and the second support 2. When the adjustment seat 5 is in the second height position, the load-bearing member is supported on the support frame. In some embodiments, the support frame includes a first support frame 81, wherein the first support frame 81 is movably connected to the first support 1 or detachably connected to the first support 1. When the adjustment seat 5 is in the second height position, the first support frame 81 extends horizontally from the first support 1 toward the second support 2. When the load-bearing device 200 is in the bassinet usage mode, the load-bearing member is supported on the first support frame 81. In other embodiments, the support frame includes a second support frame 82 disposed on the second support 2. The second support frame 82 has at least a horizontal state extending horizontally from the second support 2 toward a direction away from the first support 1. When the load-bearing device 200 is in the bassinet usage mode, the second support 2 is in a horizontal state, and the load-bearing member is supported on the second support frame 82.

[0049] In this embodiment, see Figure 2 , Figure 5 As shown, the support frame includes a first support frame 81 and a second support frame 82, wherein the first support frame 81 is rotatably connected to the first bracket 1, and the second support frame 82 is rotatably connected to the second bracket 2. In this embodiment, the first support frame 81 has a first position and a second position on the first bracket 1. When in the first position, the portion of the first support frame 81 used to support the load-bearing member is at the same height as the second support frame 82. When the load-bearing device 200 is in the seated use mode, see [reference needed]. Figure 1 As shown, the first support frame 81 is in the second position so that the first support frame 81 is offset from the bearing device 200, thereby avoiding interference to the passenger.

[0050] In this embodiment, both the first support frame 81 and the second support frame 82 are U-shaped rods. When the adjusting seat 5 is in the second height position, the opening of the first support frame 81 faces upward and the opening of the second support frame 82 faces forward.

[0051] In this embodiment, the vehicle support is further provided with a linkage assembly to drive the second support frame 82 to rotate and retract relative to the second support 2 when the first support 1 and the second support 2 retract together. Specifically, the linkage assembly includes the aforementioned connecting frame 3, and also includes a drive rod 31 rotatably connected between the connecting frame 3 and the second support frame 82. When the first support 1 and the second support 2 retract together in the front-back direction, the connecting frame 3 moves and drives the second support frame 82 to rotate via the drive rod 31.

[0052] In this embodiment, when the first bracket 1 and the second bracket 2 retract towards each other in the front-rear direction, the adjusting seat 5 slides upward relative to the connecting seat 4, and the end of the connecting frame 3 connected to the second bracket 2 moves upward under the drive of the second bracket 2, causing the connecting frame 3 to retract relative to the first bracket 1. Under the drive of the connecting frame 3, the driving rod 31 also moves upward, thereby causing the second support frame 82 to rotate relative to the second bracket 2 and retract relative to the second bracket 2.

[0053] In this embodiment, the trolley also includes a push rod frame 6, which is rotatably connected to the frame 100. The trolley has a first mode and a second mode. The push rod frame 6 has a forward pushing state that extends upward from front to back, and a reverse pushing state that extends upward from back to front. In the first mode, the push rod frame 6 is in the forward pushing state, and in the second mode, the push rod frame 6 is in the reverse pushing state.

[0054] In this embodiment, see Figures 1 to 5 As shown, the push rod frame 6 is rotatably connected to the first support 1, and the trolley has a first mode of pushing and moving and a second mode of dragging.

[0055] In some embodiments, see Figures 6 to 9 As shown, the push rod holder 6 is connected to the connecting seat 4; specifically, the push rod holder 6 is rotatably connected to the connecting seat 4. The push rod holder 6 can be flipped, thus enabling the trolley to have a first mode and a second mode, see [link to relevant documentation]. Figures 6 to 8 As shown, in the first mode, it is a normal trolley, capable of being moved by the push rod bracket 6. See also... Figure 9 As shown, by rotating the push rod 6 to the front in the direction of travel, the trolley is switched to the second mode, in which the user drives the trolley by dragging it using the push rod 6.

[0056] In this embodiment, the push rod holder 6 is rotatably connected to the frame 100 around a first rotation center line. The first rotation center line and the connecting seat 4 are spaced apart in the front-to-back direction. A push rod locking structure is provided between the connecting seat 4 and the push rod holder 6. The push rod holder 6 has a first working state and a second working state. In the first working state, the push rod holder 6 extends upward from the position of the first rotation center line toward the connecting seat 4, and is connected to the connecting seat 4 and locked to the frame 100 by the push rod locking structure. In the second working state, the push rod holder 6 is detached from the connecting seat 4 and can rotate relative to the frame 100. The push rod holder 6 extends upward from the first rotation center line in a direction away from the connecting seat 4. In this embodiment, the first working state is the forward pushing state, and the second working state is the reverse pushing state.

[0057] In this embodiment, the lower part of the push rod frame 6 is rotatably connected to the lower part of the first support 1 around the first rotation center line. When the push rod frame 6 is in the first working state, the length extension direction of the push rod frame 6 is parallel or approximately parallel to the length extension direction of the first support 1.

[0058] In this embodiment, the push rod locking structure includes a first locking member 43 and a mating member 62 that can cooperate with each other. The first locking member 43 is fixedly disposed on the connecting seat 4, and the mating member 62 is movably disposed on the push rod frame 6. The mating member 62 and the first rotation center line are spaced apart along the length direction of the push rod frame 6.

[0059] In this embodiment, see Figure 3 , Figure 5 As shown, the connecting seat 4 has a connecting portion 44 that connects to the frame 100, and a support portion 45 that extends outward from the connecting portion 44 in the left-right direction. The connecting seat 4 is located above the first rotation center line in the vertical direction. The push rod bracket 6 is in the first working state, supported on the support portion 45 and connected to the connecting seat 4 through a push rod locking mechanism. Specifically, the first locking member 43 is provided on the support portion 45.

[0060] In this embodiment, the push rod holder 6 includes a push rod 61, which is rotatably connected to the frame 100 about a first rotation center line. A mating part 62 is movably disposed on the push rod 61. In the first working state, the push rod 61 extends obliquely upward from front to back, and is supported on the support portion 45 of the connecting seat 4, with the push rod 61 connected to the connecting seat 4. See also [link to relevant documentation] in this embodiment. Figure 5 As shown, the support part 45 is provided with a downwardly recessed groove. In the first working state, the push rod 61 can be inserted into the groove, which can achieve accurate positioning and stable support of the push rod 61.

[0061] In this embodiment, see Figure 1 , Figure 2 As shown, the push rod bracket 6 includes two push rods 61 spaced apart in the left-right direction. The two push rods 61 are arranged in parallel. The frame 100 is provided with two connecting seats 4 spaced apart in the left-right direction. In the first working state, the two push rods 61 are respectively supported on the support parts 45 of the two connecting seats 4.

[0062] In this embodiment, the lower part of the push rod holder 6 is rotatably connected to the front part of the frame 100 about a rotation center line, and the push rod holder 6 has a gripping part 66 located at the upper part. Specifically, the lower part of the push rod 61 is rotatably connected to the front part of the frame 100, and the gripping part 66 is connected to the upper part of the push rod 61. See [reference needed] Figure 25 As shown, the grip 66 is fixed between the upper parts of the two push rods 61. The user can push or drag the cart by the grip 66 and can control the direction of movement of the cart by the grip 66.

[0063] In this embodiment, the push rod holder 6 is in the first working state, see [link / reference]. Figure 1 , Figure 3 As shown, the grip 66 is located at the rear of the frame 100. The user stands behind the frame 100 and pushes the cart forward using the grip 66. The push rod holder 6 is in its second working state, see [link to diagram]. Figure 5 As shown, the push rod frame 6 extends forward and upward from the front of the frame, and the grip part 66 is located in front of the frame 100. The user stands in front of the frame 100 and pulls the cart to move it by holding the grip part 66.

[0064] In this embodiment, the mating member 62 is movably disposed on the push rod frame 6 along its length, and the mating member 62 moves between a first position and a second position on the push rod frame 6. Specifically, when the mating member 62 is in the first position, the first locking member 43 cooperates with the mating member 62 to restrict the rotation of the push rod frame 6 relative to the frame 100. When the mating member 62 is in the second position, the mating member 62 disengages from the first locking member 43, allowing the push rod frame 6 to rotate and disengage from the connecting seat 4. In this embodiment, the push rod frame 6 is in a first working state, and the mating member 62 is in the first position. By driving the mating member 62 to move along the length of the push rod frame 6, the user can drive the push rod frame 6 to switch between the first working state and the second working state.

[0065] In this embodiment, see Figures 12 to 15 As shown, the first locking member 43 has a locking hook 431, and the mating member 62 is provided with a first locking groove 621. The locking hook 431 can be inserted into the first locking groove 621 radially along the push rod frame 6, thereby realizing the mutual cooperation between the first locking member 43 and the mating member 62. Specifically, see Figure 13 , Figure 14 As shown, when the mating part 62 is in the first position, the locking hook 431 is inserted into the first locking groove 621, and the locking hook 431 is hooked on the groove wall of the first locking groove 621, thus realizing the mutual locking of the first locking part 43 and the mating part 62, thereby realizing the mutual locking of the push rod frame 6 and the connecting seat 4, and restricting the push rod frame 6 from rotating relative to the frame 100.

[0066] In this embodiment, with the mating member 62 in the second position, the locking hook 431 disengages from the groove wall of the first locking groove 621, allowing the locking hook 431 to exit from the first locking groove 621 radially along the push rod frame 6. Specifically, when the mating member 62 is in the second position, the locking hook 431 is released from its restraint on the mating member 62, and rotating the push rod frame 6 at this time can drive the locking hook 431 to disengage from the first locking groove 621.

[0067] In this embodiment, see Figure 15As shown, the first locking member 43 includes a base 432 fixed to the connecting seat 4, and a locking hook 431 including an extension 4311 connected to the base 432, and a hook portion 4312 disposed on the end of the extension 4311 facing away from the base 432. The hook portion 4312, the extension 4311, and the base 432 cooperate with each other to form a hook groove 4313. See also Figure 13 , Figure 15 As shown, the first locking groove 621 has an opening 6211 for the locking hook 431 to be inserted into. With the mating member 62 in the first position, the extension 4311 is inserted into the opening 6211, and the hook 4312 extends into the first locking groove 621. At least a portion of the groove wall of the first locking groove 621 is engaged in the hook groove 4313. The groove wall engaged in the hook groove 4313 prevents the hook 4312 from exiting the first locking groove 621, thereby achieving mutual locking.

[0068] In this embodiment, the length of the first locking groove 621 is slightly greater than the width of the locking hook 431, allowing the locking hook 431 to extend into the first locking groove 621. When the mating member 62 is in the second position, the locking hook 431 corresponds to the first locking groove 621 along the axial direction of the push rod 61, allowing the locking hook 431 to exit from the first locking groove 621. When the mating member 62 is in the first position, the locking hook 431 and the first locking groove 621 are offset from each other along the axial direction of the push rod 61, causing one side wall of the first locking groove 621 to enter the hook groove 4313, thereby locking the first locking member 43 and the mating member 62.

[0069] In this embodiment, the locking hook 431 has two or more hooks 431 disposed on the base 432, all of which are distributed at intervals along the same straight line, and all of which have hook grooves 4313 with the same opening orientation. In this embodiment, the mating member 62 is provided with two or more first locking grooves 621, and all of which are corresponding to the locking hooks 431. In the first working state, the two locking hooks 431 are respectively inserted into the two hook grooves 4313, and the same side wall of the two first locking grooves 621 is respectively engaged in the hook grooves 4313 of the two locking hooks 431. By driving the mating member 62 to move to the second position, the two hook grooves 4313 can be disengaged by driving the groove walls of the two first locking grooves 621, and the locking of the two locking hooks 431 can be released. At this time, the push rod frame 6 can rotate, and the two locking hooks 431 can be disengaged from the first locking grooves 621.

[0070] In this embodiment, see Figure 14 , Figure 15As shown, the locking mechanism also includes a first elastic member 63 that provides the force required for the mating member 62 to move from the second position to the first position. When the locking hook 431 is inserted into the first locking groove 621, the mating member 62 automatically moves to the first position and engages with the locking hook 431 to achieve locking under the drive of the first elastic member 63. In this embodiment, the second position is located above the first position, and the first elastic member 63 is used to provide the force required to drive the mating member 62 to move downward.

[0071] In this embodiment, the locking hook 431 is also provided with a pushing inclined surface 4314. When the push rod frame 6 is in the first working state, the pushing inclined surface 4314 extends radially away from the connecting seat 4 from the second position toward the first position along the push rod frame 6. Under the action of no other external force and only the action of the first elastic member 63, the mating member 62 is in the first position. At this time, the mating member 62 is driven to move closer to the locking hook 431. The pushing inclined surface 4314 can push the mating member 62 to move it to the second position, and can make the locking hook 431 gradually enter the first locking groove 621. Thus, when locking the push rod frame 6 and the connecting seat 4, there is no need to drive the mating part 62 to the second position. Simply drive the push rod frame 6 to move closer to the connecting seat 4, so that the mating part 62 and the locking hook 431 move closer to each other. The locking hook 431 can then automatically insert into the first locking groove 621. After being inserted into the first locking groove 621, the mating part 62 can automatically switch to the first position under the action of the first elastic member 63, thereby achieving locking. This greatly simplifies the locking operation and provides convenience for the user.

[0072] In this embodiment, the push rod locking mechanism further includes an operating member 64 and a linkage member 65. The operating member 64 is movably mounted on the push rod holder 6. The linkage member 65 is connected between the operating member 64 and the mating member 62 so that when the operating member 64 moves, it drives the mating member 62 to move relative to the push rod holder 6. The user can drive the mating member 62 to move through the operating member 64, thereby causing the mating member 62 to switch to the second position and unlocking the push rod holder 6 and the connecting seat 4.

[0073] In this embodiment, the mating part 62 is disposed in the rod cavity of the push rod holder 6, and the operating part 64 is at least partially located outside the push rod holder 6 so that the user can perform the operation.

[0074] In this embodiment, the operating member 64 is slidably sleeved on the outside of the push rod frame 6 along the length direction of the push rod frame 6. Specifically, the operating member 64 is slidably sleeved on the outside of the push rod 61. The linkage member 65 is a traction member connecting the operating member 64 and the mating member 62.

[0075] In this embodiment, the first position is closer to the first rotation center line than the second position along the length extension direction of the push rod holder 6. The operating member 64 is configured to unlock the push rod locking mechanism when it slides upward relative to the push rod holder. This setting makes it more convenient for the user to operate.

[0076] In this embodiment, the trolley also includes a canopy assembly 9, which includes a canopy rod 91 and a support member 92. The support member 92 has a first end 921 and a second end 922 spaced apart along its length. The canopy rod 91 is rotatably connected to the first end 921, and the second end 922 is rotatably connected to the trolley frame 100 to support the canopy rod 91 at different heights on the frame 100. Users can adjust the canopy assembly 9 according to different usage needs. In this embodiment, a mounting seat 201 is provided on the frame 100, and the second end 922 is rotatably connected to the mounting seat 201. A locking structure is provided between the mounting seat 201 and the support member 92 to lock the support member 92 in at least two positions. In use, the user can first drive the support member 92 to rotate relative to the mounting seat 201 to adjust the canopy rod 91 to the required angle and height, and then the locking mechanism locks the support member 92, so that the canopy assembly 9 is stable in this state.

[0077] In this embodiment, the mounting base 201 and the second end 922 are rotatably connected about a second rotation center line. The locking structure includes a second locking member 202 movably disposed on one of the mounting base 201 and the second end 922, a locking engagement portion disposed on the other of the mounting base 201 and the second end 922, and an elastic member (not shown in the figure) providing the force required for the second locking member 202 to move toward the locking engagement portion. The direction of movement of the second locking member 202 is parallel to the second rotation center line. When the second locking member 202 engages with the locking engagement portion, the support member 92 is fixed relative to the mounting base 201. In this embodiment, the second locking member 202 moves parallel to the second rotation center line; this arrangement improves the locking effect and better prevents the support member 92 from rotating relative to the mounting base 201.

[0078] In this embodiment, the second locking member 202 is slidably disposed on the mounting base 201, and the locking engagement portion is disposed on the second end 922. In some embodiments, the second locking member 202 is slidably disposed on the second end 922, and the locking engagement portion is disposed on the mounting base 201.

[0079] In this embodiment, there are two or more locking engagement parts, and all the locking engagement parts are distributed at intervals on a circumference centered on the second rotation center line, thereby enabling the support member 92 to be locked in different positions. Specifically, see Figure 16 , Figure 17 As shown, in this embodiment, the locking structure includes a second locking member 202 and two locking mating parts spaced apart from each other. When the second locking member 202 engages with the two locking mating parts respectively, the support member 92 can be locked in two different positions, thereby making the canopy rod 91 at different height positions.

[0080] In this embodiment, see Figure 16 , Figure 17 As shown, the second end 922 of the support member 92 is provided with an annular connecting ring, the second rotation center line passes through the center of the connecting ring, the connecting ring is rotatably connected to the mounting base 201, and two second locking grooves 923 are provided on the connecting ring at intervals.

[0081] In some embodiments, multiple second locking members 202 are provided, and the multiple second locking members are distributed at intervals on a circumference centered on a second rotation center line. For example, the locking structure includes two second locking members 202 and a locking engagement portion, the locking engagement portion being able to correspond to the two locking members respectively, and when different second locking members 202 engage with the locking engagement portion, the support member 92 is locked in different positions.

[0082] In other embodiments, multiple second locking members 202 and locking engagement parts are provided. For example, the locking structure includes two second locking members 202 and two locking engagement parts, which are respectively a first locking engagement part and a second locking engagement part. When one of the second locking members 202 engages with the first locking engagement part, the support member 92 is locked in the first position. When the other second locking member 202 engages with the first locking engagement part, the support member 92 is locked in the second position.

[0083] In this embodiment, see Figure 16 , Figure 17 As shown, the second locking member 202 has a second locking part 2021, and the locking mating part is a second locking groove 923 into which the second locking part 2021 can be inserted. When the second locking part 2021 is inserted into the second locking groove 923, the support member 92 and the mounting base 201 are locked together. When the second locking part 2021 is disengaged from the second locking groove 923, the lock between the support member 92 and the mounting base 201 is released, and the support member 92 can rotate relative to the mounting base 201.

[0084] In this embodiment, at least one side wall of the second locking groove 923 is a first inclined surface 9231, so that when the support member 92 rotates relative to the mounting base 201 around the second rotation center line X, the second locking part 2021 cooperates with the first inclined surface 9231 and exits from the second locking groove 923, simplifying the unlocking operation. Specifically, see Figure 17 As shown, the first inclined surface 9231 extends in a direction parallel to the second rotation center line X and in a circumferential direction centered on the second rotation center line, so that when the support member 92 rotates relative to the mounting base 201 and the second locking member 202 slides circumferentially relative to the second locking groove 923, the first inclined surface 9231 can drive the second locking part 2021 out of the second locking groove 923.

[0085] In this embodiment, the opposing side walls of the second locking groove 923 are both first inclined surfaces 9231. Therefore, regardless of whether the support member 92 rotates relative to the mounting base 201 in a first rotational direction or in a second rotational direction opposite to the first rotational direction, the first inclined surfaces 9231 drive the second locking part 2021 out of the second locking groove 923. Thus, the user can rotate the support member 92 in any direction to release the lock between the support member 92 and the mounting base 201.

[0086] In this embodiment, the second locking part 2021 has a second inclined surface 2022 that cooperates with the first inclined surface 9231. When the support member 92 rotates relative to the mounting base 201, the second inclined surface 2022 slides relative to the first inclined surface 9231, causing the second locking part 2021 to disengage from the second locking groove 923. Specifically, see Figure 16 As shown, the second inclined plane 2022 extends obliquely in a direction parallel to the second rotation center line.

[0087] In this embodiment, the two sides of the second locking part 2021 are provided with a second inclined surface 2022, and the two second inclined surfaces 2022 can respectively cooperate with the two first inclined surfaces 9231.

[0088] In this embodiment, the tent assembly 9 includes multiple tent poles 91 and a tent fabric (not shown in the figure) disposed between the multiple tent poles 91. When the multiple tent poles 91 are unfolded relative to each other, a covering space is formed between them and the tent fabric, and the covering space covers part or all of the bearing space 210 from above. In this embodiment, by driving the tent poles 91 to rotate relative to the support member 92, the tent fabric can be unfolded or folded.

[0089] In this embodiment, the second end 922 of the support member 92 is rotatably connected to the bearing device 200. Specifically, the bearing device 200 is provided with a mounting base 201, and the canopy assembly 9 is mounted on the bearing device 200 through the mounting base 201. In this embodiment, the second end 922 is rotatably connected to the enclosure frame 7.

[0090] In this embodiment, the trolley further includes a tray assembly 10, which includes a handle frame 101 and a tray 102. The handle frame 101 is detachably connected to the frame 100, and the tray 102 is detachably connected to the handle frame 101 and to the frame 100. The trolley has a first state and a second state. In the first state, see [link to documentation]. Figure 1 As shown, the handrail 101 is connected to the frame 100, and the tray 102 is connected to the handrail 101. In the second state, see... Figure 18As shown, the handrail 101 is detached from the frame 100, and the tray 102 is connected to the frame 100. The tray 102 has two different ways of being fixed to the frame 100, and users can choose different methods to fix the tray 102 to the frame 100 according to different usage scenarios and different needs.

[0091] Specifically, in this embodiment, a mounting base 201 is provided on the frame 100, and the armrest 101 and the tray 102 can be detachably connected to the mounting base 201. In a first state, the armrest 101 is detachably connected to the mounting base 201, and in a second state, the tray 102 is detachably connected to the mounting base 201.

[0092] In this embodiment, in the first usage state, the tray 102 has a first mounting height on the frame 100. In the second usage state, the tray 102 has a second mounting height on the frame 100, wherein the first mounting height is higher than the second mounting height. The user can change the fixing method of the tray 102 according to the required usage height.

[0093] In this embodiment, the trolley is in the first state, see [link / reference]. Figure 1 As shown, the carrying device 200 is in seat use mode, with the tray 102 positioned at the front of the carrying device 200. In the second state, the carrying device is in bassinet use mode, with the tray 102 positioned on top of the carrying device 200. In the first state, the passenger in the carrying device 200 faces forward. Because the tray 102 is secured to the frame 100 using the armrest 101, the armrest 101 can support the tray 102 forward, placing it in front of the passenger for convenient use. In the second state, the opening of the carrying space 210 faces upward, eliminating the need for the armrest 101 to support the tray 102 forward; therefore, the tray 102 can be directly connected to the frame 100.

[0094] The stroller in this embodiment is designed for children to ride in. In the first state, the support device 200 is used as a seat for the child to sit in, with the tray 102 fixed to the front of the seat for easy use. In the second state, the support device 200 is used as a bassinet, with the tray 102 fixed above the bassinet. The child can sit up to retrieve items from the tray 102. When the child is lying in the bassinet, the tray 102 above will not disturb the child.

[0095] In this embodiment, the handrail 101 has two connecting ends 1011 respectively located on the left and right sides. The two connecting ends 1011 are detachably connected to the two mounting seats 201. With this configuration, in the first use state, the left and right sides of the handrail 101 are fixed to the two mounting seats 201 respectively, which can improve the stability of the handrail 101 and the tray 102 on it.

[0096] In this embodiment, see Figure 19 As shown, tray 102 is provided in two forms. In the first state, see [link to diagram]. Figure 1 As shown, two trays 102 are respectively mounted on the handrail frame 101; in the second state, see Figure 18 As shown, two trays 102 are respectively mounted on two mounting bases 201. Users can also install only one tray 102 on the handrail frame 101 in the first state, or only one tray 102 on the mounting base 201 in the second state, depending on their needs. Users can also replace or clean either tray 102 individually, thus offering greater flexibility and applicability to more scenarios.

[0097] In this embodiment, the handrail frame 101 has two side bars 1012 respectively disposed on the left and right sides, and a crossbar 1013 disposed between the two side bars 1012, with a connecting end 1011 disposed on the side bar 1012. In the first state, two trays 102 are respectively installed on the two side bars 1012 and are located on the same side of the crossbar 1013. The trays 102 are located within the space enclosed by the two side bars 1012 and the crossbar 1013, which can protect the trays 102.

[0098] In some embodiments, in the first state, two trays 102 are mounted on the crossbar 1013, and the trays 102 are also located within the space enclosed by the two side bars 1012 and the crossbar 1013. The installation positions of the trays 102 are different, but the side bars 1012 and the crossbar 1013 can both provide lateral protection for the trays 102.

[0099] In this embodiment, in the first state, the circumferential edge of the tray 102 overlaps the crossbar 1013. Preferably, the circumferential edge of the tray 102 overlaps the crossbar 1013 and the side bar 1012 on the same side. See also Figure 19 As shown, the upper inner side of the handrail 101 is provided with a downwardly recessed slot 1014. The slot 1014 extends from the upper part of the side bar 1012 to the upper part of the crossbar 1013. When the tray 102 is fixed on the handrail 101, the circumferential edge of the tray 102 is engaged in the slot 1014. Through the cooperation between the slot 1014 and the edge of the tray 102, the stability of the tray 102 can be improved.

[0100] In this embodiment, see Figure 19 As shown, the side rod 1012 extends obliquely in the vertical direction, and the lower part of the side rod 1012 forms a connecting end 1011. The crossbar 1013 connects the upper ends of the two side rods 1012, and the tray 102 can be fixed to the upper part of the side rod 1012. Fixing the tray 102 to the handrail frame 101 increases the fixing height of the tray 102 when the handrail frame 101 is fixed to the vehicle frame 100. In this embodiment, when the handrail frame 101 is fixed to the vehicle frame 100, the side rod 1012 extends obliquely forward from bottom to top, and the handrail frame 101 can fix the tray 102 to the front side of the mounting base 201 and the load-bearing space.

[0101] In this embodiment, in the first state, the two trays 102 have a first distance d1 in the left-right direction; in the second state, the two trays 102 have a second distance d2 in the left-right direction, where d2 > d1 ≥ 0. Different fixing methods can adjust the distance between the two trays 102, thus adapting to different usage scenarios. In some embodiments, the position of the trays 102 fixed to the handrail frame 101 is adjustable, allowing for more flexible adjustment of the distance between the two trays 102 in the first usage state.

[0102] In some embodiments, the two trays 102 are detachably connected, and the two trays 102 can be used together or separately. In some embodiments, the two trays 102 are connected to each other and cannot be separated, but the spacing between the two trays 102 is adjustable. In other embodiments, the two trays 102 are fixedly connected.

[0103] In this embodiment, the mounting base 201 has a first connecting structure (not shown in the figure), the connecting end 1011 is provided with a second connecting structure 1015, the handrail frame 101 is also provided with a third connecting structure 1016, and the tray 102 is provided with a fourth connecting structure 1021. The first connecting structure and the third connecting structure 1016 are similar in structure, and the second connecting structure 1015 and the fourth connecting structure 1021 are similar in structure, so that the second connecting structure 1015 can be detachably connected to the first connecting structure, and the fourth connecting structure 1021 can be detachably connected to both the first connecting structure and the third connecting structure 1016.

[0104] In this embodiment, see Figure 18 , Figure 19As shown, the second connecting structure 1015 and the first connecting structure, the fourth connecting structure 1021 and the third connecting structure 1016, and the fourth connecting structure 1021 and the first connecting structure are all detachably connected by a plug-in engagement. Specifically, in this embodiment, the second connecting structure 1015 and the fourth connecting structure 1021 include plug-in slots, and the first connecting structure and the third connecting structure 1016 include plug-in members. The plug-in members can be inserted into the plug-in slots to achieve connection, and driving the plug-in members out of the plug-in slots can disengage the connection. In this embodiment, see... Figure 19 As shown, the first and third connecting structures 1016 are provided with grooves on their connectors, and the fourth connecting structure 1021 is provided with protrusions in its connector slots. When the connectors are inserted into the connector slots, the protrusions are engaged in the grooves, thereby improving the stability of the connection.

[0105] In this embodiment, the handrail 101 and the tray 102 can be detachably connected to the frame 7. Specifically, the frame 7 is provided with a mounting base 201, and the handrail 101 and the tray 102 can be fixed to the frame 7 by the mounting base 201.

[0106] In this embodiment, the frame 100 is provided with two support portions 2011 that are supported below the bearing space 210. The two support portions 2011 are spaced apart along a first direction, and a downwardly recessed accommodating space 220 is formed between the two support portions 2011. The accommodating space 220 is connected to the bearing space 210 through the upper connecting port 2201.

[0107] In this embodiment, the trolley also includes a support pad 203, which comprises a first pad body 2031, a second pad body 2032, and a third pad body 2033 connected sequentially along its length. The first pad body 2031 and the second pad body 2032, and the second pad body 2032 and the third pad body 2033, are respectively arranged to be flipped relative to each other. The support pad 203 has a first usage state and a second usage state. In the first usage state, see [link to documentation]. Figure 22 , Figure 23 As shown, the support pad 203 is disposed in the carrying space 210. The first pad body 2031, the second pad body 2032, and the third pad body 2033 extend along the first direction. The support pad 203 blocks the connecting opening 2201 from above. In the first use state, the support pad 203 blocks the accommodating space 220 from above. The support pad 203 and the support part 2011 can form a support surface. Users can place items in the carrying space, and the items are supported on the support surface. Alternatively, children or pets can lie in the carrying space, and the children or pets can lie on the support surface and be transferred by a stroller.

[0108] In this embodiment, in the second usage state, see [link / reference]. Figure 20 , Figure 21As shown, the second pad 2032 is supported on one of the support portions 2011, the first pad 2031 extends vertically, and the third pad 2033 is inserted into the accommodating space 220, or the third pad 2033 is folded relative to the second pad 2032 and supported together with the second pad 2032 on the same support portion 2011. In the second usage state, the connecting port 2201 is open, and the accommodating space 220 is also open and can be used to accommodate objects.

[0109] In this embodiment, in the first usage state, the support pad 203 allows the child to lie down in the support space 210. In the second usage state, the support space 210 can accommodate two children. Specifically, the two children can sit on the two support parts 2011 respectively, facing each other, with their legs placed in the accommodating space 220. In this embodiment, in the second usage state, the first pad body 2031 extends upward from the support part 2011, forming a backrest for the child to lean against.

[0110] In some preferred embodiments, the length of the third pad 2033 is less than or equal to the length of the second pad 2032, which facilitates the folding of the third pad 2033 and the second pad 2032 in the second use state.

[0111] In this embodiment, the length of the second cushion 2032 is less than or equal to the length of the support portion 2011. On the one hand, in the second usage state, this prevents a portion of the second cushion 2032 from overhanging above the accommodating space 220, improving stability and preventing damage to the overhanging portion of the second cushion 2032. On the other hand, in the second usage state, the first cushion 2031 can extend tilted vertically, resulting in an angle greater than 90° between the first cushion 2031 and the second cushion 2032. The tilted extension of the backrest formed by the first cushion 2031 makes it more comfortable for children to lean back.

[0112] In some preferred embodiments, the length of the first cushion 2031 is greater than the lengths of the second cushion 2032 and the third cushion 2033, so that the first cushion 2031, which serves as a backrest in the second usage mode, has sufficient support range. Specifically, in this embodiment, the length of the first cushion 2031 is greater than the height of the support space 210. When the support pad 203 is in the second usage state, at least part of the first cushion 2031 extends outside the support space 210, which can increase the support height sufficiently and improve the comfort of sitting.

[0113] In this embodiment, the first pad 2031 and the second pad 2032 are connected at the first connection position 2034, and the second pad 2032 and the third pad 2033 are connected at the second connection position 2035. When the support pad 203 is in its first usage state, the first connection position 2034 is located above the accommodating space 220, and the second connection position 2035 is located on one of the support portions 2011. This arrangement avoids the first connection position 2034 and the second connection position 2035 being simultaneously located above the accommodating space 220, or located at the two side boundaries of the connecting opening 2201, thus improving the stability of the support pad 203 in the first usage state.

[0114] In this embodiment, in the first usage state, the support pad 203 completely covers the two support parts 2011 and the connecting port 2201. The support pad 203 itself constitutes a complete support surface, and the support pad 203 will not slide relative to each other, thus achieving better stability.

[0115] In this embodiment, the first cushion 2031, the second cushion 2032, and the third cushion 2033 are connected to each other by flexible connectors. This allows for folding and flipping, and ensures the flatness of the supporting surface in the first use state, preventing protrusions at the joints and improving the comfort of children lying on them. Simultaneously, in the second use state, it also prevents protrusions or other structural defects at the joints of the different cushions, improving the comfort of children sitting on them. Specifically, each of the first cushion 2031, the second cushion 2032, and the third cushion 2033 includes a rigid pad and a fabric cover covering the outside of the pad. The three fabric covers are integrally formed or fixedly connected to each other. The pad provides support, the fabric covers connect the pads, and the outer fabric covers enhance seating comfort.

[0116] In other embodiments, the first pad 2031, the second pad 2032, and the third pad 2033 can be rotatably connected to each other by a structure already existing in the prior art, such as a hinge.

[0117] In this embodiment, see Figure 24 As shown, the two support parts 2011 are of the same length and are symmetrically distributed relative to a plane. Thus, in the second usage state, the children sitting on the two support parts 2011 are symmetrically positioned, which helps maintain the stability of the stroller. Specifically, in this embodiment, the first direction is the front-to-back direction, and the two support parts 2011 are symmetrically arranged along this direction. In the second usage state, two children sit on the two support parts 2011, one in front of the other.

[0118] In some embodiments, each support portion 2011 is provided with a support plate for providing stable support.

[0119] In this embodiment, the support device 200 includes a support cover 204 disposed on the frame 7, and the frame 7 and the support cover 204 enclose the aforementioned support space 210. In some embodiments, both support portions 2011 are formed on the support cover 204, that is, both support portions 2011 are formed on the support device 200, and a support pad 203 is disposed in the support device 200. When the support pad 203 switches between a first use state and a second use state, the usage mode of the support device 200 changes. Specifically, when the support pad 203 is in the first use state, the support device 200 is used in the same way as a common bassinet. When the support pad 203 is in the second use state, the support device 200 can support two children sitting in it.

[0120] In some embodiments, the two support portions 2011 can be respectively supported on the first bracket 1 and the second bracket 2 to improve the load-bearing capacity and load-bearing stability of the two support portions 2011. See also: Figure 20 As shown, the two support parts 2011 can be supported on the first support frame 81 and the second support frame 82 respectively.

[0121] In some embodiments, both support portions 2011 are formed on the frame 100, and the support pad 203 is disposed on the frame 100 and changes the riding mode of the trolley by changing its usage state. Specifically, the two support portions 2011 can be formed on the first support 1 and the second support 2 respectively, or the two support portions 2011 can be formed on the first support frame 81 and the second support frame 82 respectively.

[0122] In some embodiments, the length of the support sleeve 204 along the first direction is adjustable, thereby forming an opening, namely the aforementioned communication port 2201, by adjusting the length of the support sleeve 204. In other embodiments, the support sleeve 204 is provided with an opening, thereby forming the aforementioned communication port 2201.

[0123] In this embodiment, see Figure 25 As shown, the push rod 61 includes a first push rod 611 and a second push rod 612 that are slidably disposed along its length. A locking assembly is provided between the first push rod 611 and the second push rod 612. The locking assembly includes a third locking member 671 that is movable on one of the first push rod 611 and the second push rod 612. The third locking member 671 is movable between a locked position and an unlocked position. When in the locked position, the third locking member 671 locks the first push rod 611 and the second push rod 612. When in the unlocked position, the first push rod 611 and the second push rod 612 are unlocked.

[0124] In this embodiment, the push rod holder 6 is provided with an unlocking mechanism for unlocking the locking component. The unlocking mechanism includes an unlocking member 681 and a third locking member 671 disposed on the same component, and the unlocking member 681 is movably disposed. A limiting mechanism is provided between the unlocking member 681 and the third locking member 671. The limiting structure includes a limiting member 672 and a limiting engagement portion respectively disposed on the unlocking member 681 and the third locking member 671. The unlocking member 681 has a first position, a second position, and a third position sequentially distributed along the direction of movement. When the unlocking member 681 is between the first and second positions, the limiting member 672 and the limiting engagement portion cooperate to prevent the third locking member 671 from moving from the locked position to the unlocked position. When the unlocking member 681 moves from the second position to the third position, the limiting member 672 disengages from the limiting engagement portion, causing the unlocking member 681 to drive the third locking member 671 toward the unlocked position.

[0125] In this embodiment, driving the unlocking member 681 to the third position drives the locking member to the unlock position, thereby unlocking the locking component. By setting a limiting structure, the unlocking member 681 will not drive the third locking member 671 to move or unlock the locking component during its movement from the first position to the second position. Only when the unlocking member 681 moves beyond the second position will the third locking member 671 be activated. This prevents accidental unlocking of the locking component by the unlocking member 681. This design creates a "protective travel" between the first and second positions. Even if someone accidentally touches the unlocking member 681, causing it to move relative to the first component, the movement of the unlocking member 681 within this "protective travel" will not cause the locking component to be accidentally locked, thus improving security.

[0126] In this embodiment, the unlocking component 681 is movable along the second direction. The first position, the second position and the third position are distributed sequentially in the second direction. The user only needs to drive the unlocking component 681 to move from the first position to the third position along the second direction to unlock the locking component. The principle is simple and the movement mode of the unlocking component 681 is simple.

[0127] In this embodiment, the limiting engagement part is a limiting groove 682 extending along the second direction. The limiting member 672 slidably engages with the limiting groove 682. When the limiting member 672 is located in the limiting groove 682, the third locking member 671 cannot move to the unlocked position. When the limiting member 672 disengages from the limiting groove 682, the third locking member 671 can move relative to the first component. Specifically, in this embodiment, the third locking member 671 has a locking end 6711. When the third locking member 671 switches between the locked position and the unlocked position, the locking end 6711 is set to move upward in a third direction perpendicular to the second direction. Through the engagement of the limiting member 672 and the limiting groove 682 extending in the second direction, the locking end 6711 can be prevented from moving along the third direction, thereby preventing the third locking member 671 from switching to the unlocked position.

[0128] In this embodiment, the component with the limiting groove 682 in both the unlocking component 681 and the third locking component 671 also has a clearance groove 683, and the limiting groove 682 and the clearance groove 683 are interconnected. When the unlocking component 681 moves from the second position to the third position, the limiting component 672 moves from the limiting groove 682 to the clearance groove 683. After being released from the limitation of the limiting groove 682, the limiting component 672 can move in the clearance groove 683, causing the third locking component 671 to move relative to the first component. In this embodiment, see... Figure 26 , Figure 27 As shown, the clearance groove 683 is disposed on one side of the limiting groove 682 along a third direction. When the limiting member 672 moves to the connection point between the limiting groove 682 and the clearance groove 683, the limiting member 672 can disengage from the limiting groove 682 along a third direction, and the third locking member 671 is released from its limiting position along a third direction, thereby allowing the locking end 6711 to move along a third direction. In this embodiment, the clearance groove 683 has a certain depth along a third direction to meet the movement distance required for the third locking member 671 to switch to the unlocked position.

[0129] In this embodiment, when the unlocking member 681 moves beyond the second position, the limiting member 672 disengages from the limiting groove 682. Subsequently, as the unlocking member 681 moves to the third position, the limiting member 672 can move in the clearance groove 683 along the second direction. At the same time, the limiting member 672 can move in the clearance groove 683 along the third direction to cooperate with the third locking member 671 to switch to the unlocking position.

[0130] In this embodiment, see Figure 26 , Figure 27As shown, the clearance groove 683 is also provided with a driving surface 6831 that slides with the limiting member 672. During the process of the unlocking member 681 moving from the second position to the third position, the limiting member 672 moves along the driving surface 6831 and drives the third locking member 671 to move from the locked position to the unlocked position. The driving surface 6831 extends obliquely along the second direction and simultaneously along the third direction, so as to drive the third locking member 671 to move to the unlocked position along the third direction during the process of the unlocking member 681 moving along the second direction.

[0131] In this embodiment, the limiting member 672 is disposed on the third locking member 671, and the limiting groove 682 and the clearance groove 683 are both disposed on the unlocking member 681. In this embodiment, both the third locking member 671 and the unlocking member 681 are disposed on the first push rod 611.

[0132] In summary, the stroller of this embodiment has a frame 100 with a first form and a second form. By driving the adjustment seat 5 to switch between the first height position and the second height position, the distance between the first wheel assembly 301 and the second wheel assembly 302 can be changed, thereby allowing the frame 100 to switch between the first form and the second form. The stroller's usage mode is no longer limited, and the stroller's switching principle is simple, convenient for users, and can improve the riding experience.

[0133] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. In the event of any contradiction or inconsistency between the definitions used herein and those contained in other published documents, the definitions used herein shall prevail.

[0134] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A vehicle, characterized in that, The vehicle includes a vehicle support frame, and the vehicle support frame includes: First support; Second support; A connecting seat is fixedly disposed on the upper part of the first bracket; An adjusting seat is provided, the upper part of the second bracket is rotatably connected to the adjusting seat, and the adjusting seat is movably connected to the connecting seat. The adjusting seat has at least a first height position and a second height position on the connecting seat. When the adjusting seat changes from the first height position to the second height position, the distance between the lower part of the first bracket and the lower part of the second bracket in the front-back direction changes, and the vehicle bracket changes from the first form to the second form.

2. The vehicle according to claim 1, characterized in that: When the vehicle is in the deployed state, the length extension directions of the first bracket and the second bracket form an angle α. When the adjustment seat changes from the first height position to the second height position, the angle α changes.

3. The vehicle according to claim 2, characterized in that: When the vehicle support is transformed from the first form to the second form, the angle between the first support and the horizontal plane remains unchanged, while the angle between the second support and the horizontal plane changes. And / or, the adjusting seat is slidably disposed on the connecting seat in the vertical direction, wherein when the vehicle support is transformed from the first form to the second form, the position of the connecting seat remains unchanged, and the adjusting seat slides relative to the connecting seat to transform from the first height position to the second height position.

4. The vehicle according to claim 1, characterized in that: The vehicle support also includes a connecting assembly, which is movably connected between the first support and the second support; The connecting assembly includes a connecting frame, one end of which is rotatably connected to the first support, and the other end of which is rotatably connected to the second support.

5. The vehicle according to claim 1, characterized in that: The adjusting seat and the connecting seat are slidably connected in the vertical direction, and a guide structure is provided between the adjusting seat and the connecting seat to provide relative sliding guidance between the two in the vertical direction.

6. The vehicle according to claim 5, characterized in that: The guiding structure includes a guide groove slidably disposed on the connecting seat in the vertical direction, and the adjusting seat extends in the vertical direction and slidably engages with the guide groove. Wherein, the guide groove is provided through upwards, so that the upper end of the adjusting seat is exposed above the guide groove; and / or, the guide groove is provided through downwards, so that the lower end of the adjusting seat is exposed below the guide groove.

7. The vehicle according to claim 1, characterized in that: The adjusting seat and the connecting seat are slidably connected in the vertical direction, and a locking mechanism is provided between the adjusting seat and the connecting seat to lock the adjusting seat at the first height position or the second height position.

8. The vehicle according to claim 1, characterized in that: The first height position is higher than the second height position in the vertical direction. When the adjustment seat is at the first height position, the lower part of the first bracket and the lower part of the second bracket have a first distance in the front-back direction. When the adjustment seat is at the second height position, the lower part of the first bracket and the lower part of the second bracket have a second distance in the front-back direction. The first distance is smaller than the second distance.

9. The vehicle according to any one of claims 1 to 8, characterized in that: The adjusting seat always extends vertically, and the carrier also includes a bearing device, which is disposed on the adjusting seat. When the height of the adjusting seat changes, the height of the bearing device is adjusted accordingly.

10. The vehicle according to claim 9, characterized in that: The support device has a support frame rotatably connected to the adjustment seat, allowing the support device to switch between a seated use mode providing sitting support and a bassinet use mode providing reclining support.

11. The vehicle according to claim 10, characterized in that: The support device includes a support member connected to the support frame. When the support device is in the bassinet usage mode, at least a portion of the support member extends horizontally to provide lying support. The vehicle support also includes a support frame, which is disposed between the first support and the second support. When the adjusting seat is at the second height position, the load-bearing member is supported on the support frame.

12. The vehicle according to claim 11, characterized in that: The support frame includes: A first support frame, movably or detachably connected to the first bracket, extends horizontally from the first bracket toward the second bracket when the adjusting seat is in the second height position. In the bassinet usage mode, the supporting device rests on the first support frame; and / or... The second support frame is disposed on the second bracket. The second support frame has at least a horizontal state extending horizontally from the second bracket in a direction away from the first bracket. When the bearing device is in the use mode of the bassinet, the bearing member is supported on the second support frame.

13. The vehicle according to claim 12, characterized in that: The second support frame is rotatably connected to the second bracket, and the vehicle bracket is also provided with a linkage assembly to drive the second support frame to rotate and retract relative to the second bracket when the first bracket and the second bracket retract towards each other; The linkage assembly includes a connecting frame, one end of which is rotatably connected to the first support, and the other end of which is rotatably connected to the second support; the linkage assembly also includes a drive rod rotatably connected between the connecting frame and the second support frame.

14. The vehicle according to claim 1, characterized in that: The vehicle also includes: The first round component is disposed at the bottom of the first bracket; The second round component is located at the bottom of the second bracket; A push rod frame, rotatably connected to the carrier support, the push rod frame having a forward pushing state extending from front to back and upward at an upward angle, and a reverse pushing state extending from back to front and upward at an upward angle.

15. The vehicle according to claim 1, characterized in that: The carrier also includes a push rod frame, which is rotatably connected to the carrier support about a first rotation center line. The first rotation center line and the connecting seat are spaced apart in the front-to-back direction. A mutually cooperating push rod locking structure is provided between the connecting seat and the push rod frame. The push rod frame has a first working state and a second working state. In the first working state, the push rod frame extends upwardly from the position of the first rotation center line toward the connecting seat. The push rod frame is connected to the connecting seat and locked to the carrier bracket through the push rod locking structure. In the second working state, the push rod bracket is detached from the connecting seat and can rotate relative to the carrier support. The push rod bracket extends upward at an angle from the first rotation center line in a direction away from the connecting seat.

16. The vehicle according to claim 15, characterized in that: The lower part of the push rod frame is rotatably connected to the lower part of the first support around the first rotation center line. When the push rod frame is in the first working state, the length extension direction of the push rod frame is parallel or approximately parallel to the length extension direction of the first support.

17. The vehicle according to claim 15, characterized in that: The push rod locking structure includes a first locking member and a mating member that can cooperate with each other. The first locking member is fixedly disposed on the connecting seat, and the mating member is movably disposed on the push rod frame. The mating member and the first rotation center line are spaced apart along the length direction of the push rod frame. The mating component is movably disposed along the length direction of the push rod frame and moves between a first position and a second position. In the first working state, when the mating component is in the first position, the first locking component cooperates with the mating component to restrict the push rod frame from rotating relative to the carrier support. When the mating component is in the second position, the mating component disengages from the first locking component so that the push rod frame can rotate and disengage from the connecting seat.

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