Stroller

Abstract

The utility model relates to a baby carriage technical field discloses a child's push car, including front support, rear support, push rod, support rod and basket pole. The front support bottom is equipped with front wheel, the rear support includes with the rear support rod of front support rotary connection and with the extension link of rear support rod swing joint, and the extension link end is equipped with rear wheel, the push rod is rotatively connected with at least one of front support and rear support, the support rod supports between rear support rod and push rod, the basket pole swing is equipped in support rod, the wheel distance of rear wheel and front wheel increases when the child's push car converts from first use state to second use state, the extension link moves to the direction of extension rear support rod, still have linkage mechanism, when the extension link moves to the direction of extension rear support rod, the extension link drives the basket pole swing through linkage mechanism to adjust the basket pole. The utility model can realize the following linkage of basket pole when carrying out single, doublet car state switching, guarantees the attitude of basket pole unchanged before and after conversion, and simple structure, convenient operation, low in cost.

Description

Technical Field

[0001] This utility model relates to the field of children's vehicle technology, and in particular to a children's stroller. Background Technology

[0002] To facilitate outdoor activities with two children at the same time, strollers with both single and double seating modes have appeared on the market. In double seating mode, two seats can be installed for two children; in single seating mode, one seat can be installed for one child.

[0003] However, when existing strollers switch from single-person to double-person mode, the wheelbase between the front and rear wheels often widens. This causes the basket handle mounted on the rear support to tilt simultaneously, affecting its normal use and causing inconvenience to the user. Furthermore, the mechanisms used for switching between single and double-person modes in existing strollers are relatively complex, cumbersome to operate, and costly.

[0004] Therefore, there is an urgent need for a children's stroller to solve the above-mentioned technical problems. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide a children's stroller that can adjust the wheel distance between the front and rear wheels while simultaneously moving the basketball hoop in tandem, ensuring that the posture of the basketball hoop remains unchanged before and after switching between single and double-person modes. Moreover, it has a simple structure, is easy to operate, and is low in cost.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Strollers, including:

[0008] The front bracket has a front wheel at its bottom;

[0009] The rear support includes a rear support rod rotatably connected to the front support and an extension rod movably connected to the rear support rod, wherein a rear wheel is provided at the end of the extension rod away from the rear support rod;

[0010] The push rod is rotatably connected to at least one of the front bracket and the rear bracket;

[0011] A support rod is provided between the rear support rod and the push rod.

[0012] The basketball hoop pole is movably mounted on the support pole.

[0013] The stroller has a first usage state and a second usage state. When switching from the first usage state to the second usage state, the wheelbase between the rear wheel and the front wheel increases; the extension rod moves in the direction of extending the rear support rod.

[0014] The stroller also has a linkage mechanism that links the extension rod and the basket rod. When the extension rod moves in the direction of extending the rear support rod, the extension rod drives the basket rod to move through the linkage mechanism to adjust the basket rod.

[0015] In some possible implementations, the basket pole is rotatably mounted on the support pole, and the basket pole has a connecting end that is rotatably connected to the linkage mechanism;

[0016] As the extension rod slides away from the rear support rod, the linkage mechanism drives the basket rod to rotate so that the connecting end moves downward.

[0017] In some possible implementations, the linkage mechanism includes a connecting rod rotatably connected to the basket pole, with one end of the connecting rod away from the basket pole being a movable end. The movable end is movably connected to the extension rod so that when the extension rod moves away from the rear support rod, it drives the connecting rod to move downward as a whole.

[0018] In some possible implementations, the rear support rod is sleeved outside the extension rod, and the extension rod is provided with an oblique guide groove, the extension direction of the oblique guide groove being oblique to the sliding direction of the extension rod; the extension rod has a stretching direction that slides away from the rear support rod and a shortening direction that slides towards the rear support rod, and the oblique guide groove is inclined away from the stretching direction of the extension rod.

[0019] The rear support rod is provided with a movable slide groove, which has a first end and a second end. The first end is higher than the second end in the vertical direction. The movable end of the connecting rod is slidably connected to the movable slide groove and the inclined guide groove simultaneously by a connecting pin. When switching from the first use state to the second use state, the connecting pin moves from the first end to the second end.

[0020] In some possible implementations, the cart further includes:

[0021] The control lever is rotatably connected to the rear support rod;

[0022] A linkage component is disposed between the control lever and the extension rod, and the linkage component is rotatably connected to both the control lever and the extension rod.

[0023] When the control lever is rotated, the linkage drives the extension rod to move in the direction of extending the rear support rod.

[0024] In some possible implementations, the first end of the support rod is rotatably mounted to the push rod, and the second end of the support rod is rotatably mounted to the back of the control lever via a second shaft. When switching from the first use state to the second use state, the control lever rotates along with the second end of the support rod to move the second shaft downward.

[0025] In the first use state, the back of the control lever is positioned facing out of the vehicle body; in the second use state, the back of the control lever is rotated to face inwards towards the vehicle body.

[0026] In some possible implementations, the rear support rod is provided with a first locking hole and a second locking hole, and the stroller also has a locking tongue, a reset member and an unlocking member; in a first use state, the reset member can lock the locking tongue with the first locking hole, and in a second use state, the reset member can lock the locking tongue with the second locking hole; the unlocking member is used to unlock the locking tongue.

[0027] In some possible implementations, the joystick further includes:

[0028] The housing is plate-shaped and supported between the two rear struts;

[0029] A rotating shaft is disposed inside the housing. Both ends of the rotating shaft are rotatably connected to the rear support rods on both sides. The rotating shaft is located below the second shaft, and the first locking hole is located above the rotating shaft, while the second locking hole is located below the rotating shaft.

[0030] The locking part is rotatably connected to the upper end of the linkage member, and the locking tongue is retractably disposed at both ends of the locking part. The locking tongue can pass through the upper end of the linkage member and lock with the rear support rod.

[0031] The reset element is an elastic element, which is disposed at the rear end of the locking tongue and is used to allow the locking tongue to extend out of the locking part;

[0032] The unlocking component is an unlocking lever, which is connected to the latch via a pull cord and is used to retract the latch back into the locking part.

[0033] In some possible implementations, the rear support also includes an inner sleeve fixed inside the rear support rod, the extension rod being slidably connected inside the inner sleeve, and the inner sleeve having a first fixing hole and a second fixing hole, the first fixing hole corresponding to the position of the first locking hole, the second fixing hole corresponding to the position of the second locking hole, and the first fixing hole and the second fixing hole being used to lock with the locking tongue respectively.

[0034] In some possible implementations, the extension rod is provided with a guide groove that extends along the axial direction of the extension rod, and the inner sleeve is provided with a sliding part that is slidably connected to the guide groove.

[0035] The beneficial effects of this utility model are:

[0036] The stroller provided by this utility model features an extension rod movably connected to the rear support rod, and a basket arm movably connected to the support rod. A linkage mechanism links the extension rod and the basket arm. When the stroller transitions from a first usage state to a second usage state, the wheelbase between the rear and front wheels increases, causing the extension rod to move towards extending the rear support rod. Simultaneously, the extension rod, through the linkage mechanism, moves the basket arm to adjust its position. This design ensures that the basket arm moves in tandem with the adjustment of the wheelbase, maintaining its posture before and after switching between single and double stroller modes, preventing tilting and ensuring normal use of the basket arm. This utility model is simple in structure, easy to operate, and low in cost, simultaneously adjusting the posture of the basket arm while switching between single and double stroller modes. Attached Figure Description

[0037] Figure 1 This is a structural diagram of the stroller provided in this embodiment of the present invention when it is in single-person stroller mode;

[0038] Figure 2 This is a structural diagram of the stroller provided in this embodiment of the present invention when it is in the form of a double stroller;

[0039] Figure 3 This is a structural schematic diagram from another perspective of the child stroller provided in this embodiment of the present invention when it is in single-person stroller mode;

[0040] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0041] Figure 5 This is a partial structural diagram of the stroller provided in this embodiment of the present invention when it is in single-person stroller mode;

[0042] Figure 6 This is a schematic diagram showing the connection of the rear support, rear wheels, linkage, support rod, and basket rod of the children's stroller in single-person mode according to an embodiment of this utility model.

[0043] Figure 7 This is a schematic diagram showing the connection of the rear support, rear wheels, linkage, support rod, and basket rod when the stroller is in double-person mode, as provided in this embodiment of the utility model.

[0044] Figure 8 This is a schematic diagram of the extension rod and rear wheel involved in an embodiment of this utility model;

[0045] Figure 9 This is a schematic diagram of the control lever according to an embodiment of the present utility model;

[0046] Figure 10 This is a schematic diagram of the linkage component involved in an embodiment of the present utility model;

[0047] Figure 11 This is a schematic diagram of the support rod according to an embodiment of the present utility model;

[0048] Figure 12 This is a schematic diagram of the structure of the basket pole according to an embodiment of the present utility model;

[0049] Figure 13 This is a schematic diagram of the connecting rod involved in an embodiment of the present utility model;

[0050] Figure 14 This is a schematic diagram of the connecting pin involved in an embodiment of the present utility model.

[0051] In the picture:

[0052] 1. Front bracket;

[0053] 2. Front wheels;

[0054] 3. Rear bracket; 31. Rear support rod; 311. Moving slide; 3111. First end; 3112. Second end; 312. First locking hole; 32. Extension rod; 321. Angled guide groove; 322. Guide slide; 33. Inner sleeve; 331. First fixing hole; 332. Second fixing hole;

[0055] 4. Rear wheels;

[0056] 5. Push rod; 51. Second connecting lug;

[0057] 6. Control lever; 61. Locking tongue; 62. Housing; 621. First connecting ear; 63. Rotating shaft; 64. Locking part; 65. Unlocking handle; 66. Pull cord;

[0058] 7. Linkage components;

[0059] 8. Support rod; 81. Second shaft; 82. Third shaft;

[0060] 9. Basketball hoop pole; 91. First axle; 92. Connecting rod; 921. Connecting pin;

[0061] 10. Handrails. Detailed Implementation

[0062] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0063] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0064] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0065] In the description of this utility model, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0066] like Figures 1 to 14As shown, this embodiment provides a stroller, including a front support 1, front wheels 2, a rear support 3, rear wheels 4, a push rod 5, a support rod 8, and a basket rod 9. The front support 1 is located on the front side of the stroller, and the front wheels 2 are mounted on the bottom of the front support 1. The rear support 3 is located on the rear side of the stroller, and includes a rear support rod 31 rotatably connected to the front support 1 and an extension rod 32 movably connected to the rear support rod 31. The rear wheels 4 are located at the end of the extension rod 32 away from the rear support rod 31. When the extension rod 32 extends rearward relative to the rear support rod 31, the wheelbase between the rear wheels 4 and the front wheels 2 increases; when the extension rod 32 shortens forward relative to the rear support rod 31, the wheelbase between the rear wheels 4 and the front wheels 2 decreases. The push rod 5 is rotatably connected to at least one of the front support 1 and the rear support 3, and the push rod 5 facilitates the user to push the stroller. It should be noted that, without considering folding, the push rod 5 can be rotatably mounted on the rear bracket 3, or the push rod 5 can be coaxially rotatably configured with the front bracket 1 and the rear bracket 3; however, considering the convenience of folding the frame, in this embodiment, the push rod 5 is preferably rotatably connected to the front bracket 1. The support rod 8 is supported between the rear support rod 31 and the push rod 5, the upper end of the support rod 8 is rotatably connected to the push rod 5, and the lower end of the support rod 8 can rotate relative to the rear support rod 31. The basket rod 9 is located on the lower rear side of the vehicle body and is used to place accompanying items; the basket rod 9 is movably configured on the support rod 8.

[0067] This stroller has a first usage state and a second usage state. When switching from the first usage state to the second usage state, the wheelbase between the rear wheel 4 and the front wheel 2 increases, and the extension rod 32 moves towards the extended rear support rod 31. The stroller also has a linkage mechanism that links the extension rod 32 and the basket pole 9. When the extension rod 32 moves towards the extended rear support rod 31, the extension rod 32 drives the basket pole 9 to move through the linkage mechanism to adjust the posture of the basket pole 9. Specifically, the first usage state in this embodiment is a single-person stroller state, and the second usage state is a two-person stroller state. In this embodiment, when adjusting the wheelbase between the front wheel 2 and the rear wheel 4, the stroller can simultaneously achieve the following linkage of the basket pole 9, ensuring that the posture of the basket pole 9 remains unchanged before and after the single-person and two-person stroller state transitions, preventing the basket pole 9 from tilting, and ensuring the normal use of the basket pole 9. This utility model has a simple structure, is easy to operate, and has low cost. It simultaneously achieves the posture adjustment of the basket pole 9 while switching between single-person and two-person stroller states.

[0068] Optionally, in this embodiment, the rim rod 9 is rotatably mounted on the support rod 8 via a first shaft 91. The rim rod 9 has a connecting end rotatably connected to the linkage mechanism. When the extension rod 32 slides away from the rear support rod 31, the linkage mechanism drives the rim rod 9 to rotate, causing the connecting end to move downwards. Further, the linkage mechanism includes a connecting rod 92 rotatably connected to the connecting end of the rim rod 9. The end of the connecting rod 92 away from the rim rod 9 is a movable end, which is movably connected to the extension rod 32, so that when the extension rod 32 moves away from the rear support rod 31, it drives the connecting rod 92 to move downwards as a whole. This embodiment has a simple structure and ingenious design. The movement of the connecting rod 92 achieves the pulling of the rim rod 9, thereby changing the posture of the rim rod 9. It should be noted that in this embodiment, the frame includes two sets of side supports, left and right. Each set of side supports includes a front support 1, a front wheel 2, a rear support 3, a rear wheel 4, a push rod 5, and a support rod 8. The basket pole 9 includes a U-shaped frame and a basket mounted on the U-shaped frame. One open end of the U-shaped frame faces the front of the stroller. The two arms of the U-shaped frame are rotatably connected to two support rods 8, and two connecting rods 92 are rotatably connected to the connecting ends of the two arms of the U-shaped frame. Specifically, the connecting rods 92 are strip-shaped connecting pieces.

[0069] Furthermore, in this embodiment, the rear support rod 31 is sleeved outside the extension rod 32. The extension rod 32 is provided with an oblique guide groove 321, the extension direction of which is oblique to the sliding direction of the extension rod 32. The extension rod 32 has a stretching direction that slides away from the rear support rod 31 and a shortening direction that slides towards the rear support rod 31. The oblique guide groove 321 is inclined away from the stretching direction of the extension rod 32. The rear support rod 31 is provided with a movable slide groove 311, which has a first end 3111 and a second end 3112. The first end 3111 is higher than the second end 3112 in the vertical direction. Specifically, in this embodiment, the movable slide groove 311 is perpendicular to the extension direction of the rear support rod 31. The movable end of the connecting rod 92 is simultaneously slidably connected to the movable slide groove 311 and the inclined guide groove 321 via the connecting pin 921. When the trolley is switched from a single-person trolley state to a double-person trolley state, the connecting pin 921 moves from the first end 3111 to the second end 3112. In this embodiment, the movable slide groove 311 and the inclined guide groove 321 jointly limit the connecting rod 92, thus guiding and limiting the rotation of the basket rod 9, allowing the basket rod 9 to remain in a horizontal position for easy placement of items inside the basket.

[0070] The trolley in this embodiment also includes a control lever 6 and a linkage 7. The control lever 6 is rotatably connected to the rear support rod 31, and the linkage 7 is disposed between the control lever 6 and the extension rod 32. The upper end of the linkage 7 is rotatably connected to the control lever 6, and the lower end of the linkage 7 is rotatably connected to the extension rod 32. When the trolley is switched from a single-person trolley state to a double-person trolley state, rotating the control lever 6 can drive the extension rod 32 to move in the direction of extending the rear support rod 31. In this embodiment, rotating the control lever 6 facilitates the extension rod 32 to extend or retract relative to the rear support rod 31. Specifically: when the control lever 6 is rotated to the first position, the extension rod 32 shortens forward relative to the rear support rod 31. At this time, the wheelbase between the front wheel 2 and the rear wheel 4 is relatively small, and the stroller is in single-person mode, where one seat can be installed, which helps save the overall space occupied by the stroller and is convenient for use in smaller spaces. When the control lever 6 is rotated to the second position, the extension rod 32 extends backward relative to the rear support rod 31. At this time, the wheelbase between the front wheel 2 and the rear wheel 4 is larger, and the stroller is in double-person mode, with enough space on the frame to install two seats, so that children can ride comfortably without feeling crowded.

[0071] It should be noted that when the rear support 3 flips backward, the middle support rod 8 needs to make way. The reason for this is that if the front and rear wheelbase of the trolley increases, the tilt angle of the entire front support 1 will decrease, meaning the front support 1 will tilt backward. This would cause the axle of the front wheel 2 to change from an upright state to a tilted state, making it more susceptible to damage. Furthermore, the tilting of the front support 1 backward would also make the frame more prone to tipping over. One objective of this invention is to maintain a constant tilt angle of the front support 1 when the wheelbase changes. To maintain this constant tilt angle, the support rod 8 needs to make way when the rear support 3 flips backward. This can be achieved by shortening the length of the support rod 8, moving the lower end of the support rod 8 downward, or moving the upper end of the support rod 8 upward. The shortening of the support rod 8 can be achieved through sliding retraction or rotational folding. Preferably, in this embodiment, when the trolley transitions from a single-person trolley to a double-person trolley, the lower end of the support rod 8 is moved downward by flipping.

[0072] Specifically, the lower end of the support rod 8 is rotatably mounted on the back of the control lever 6 via the second shaft 81. This allows the control lever 6 to rotate the lower end of the support rod 8 when the stroller is switched from a single-person to a double-person configuration, causing the second shaft 81 to move downwards. This adapts the support rod 8 to the change in the stroller's configuration, ensuring stable support for the stroller and improving its safety. Specifically, in the single-person configuration, the back of the control lever 6 faces outwards (i.e., the rear of the stroller); in the double-person configuration, the back of the control lever 6 rotates to face inwards (i.e., the front of the stroller).

[0073] In this embodiment, the control lever 6, when rotated, simultaneously drives the extension rod 32, support rod 8, and basket pole 9. This ensures that when the wheelbase between the front wheels 2 and rear wheels 4 is adjusted, the basket pole 9 moves in tandem, maintaining its posture before and after switching between single and double stroller modes. This prevents the basket pole 9 from tilting and ensures its proper use. This invention features a simple structure, convenient operation, and low cost. Users can switch between single and double stroller modes with one hand, and the operation is completed in one step, simultaneously adjusting the posture of the basket pole 9.

[0074] In this embodiment, the rear support rod 31 is provided with a first locking hole 312 and a second locking hole. The control lever 6 also includes a locking tongue 61, a reset member, and an unlocking member. In single-person stroller mode, the reset member can lock the locking tongue 61 with the first locking hole 312 to lock the control lever 6 in a first position relative to the rear support rod 31. In double-person stroller mode, the reset member can lock the locking tongue 61 with the second locking hole to lock the control lever 6 in a second position relative to the rear support rod 31. The unlocking member is used to unlock the locking tongue 61 to facilitate rotation of the control lever 6. When switching between single-person and double-person stroller modes, the child stroller provided in this embodiment first unlocks the control lever 6, then rotates the control lever 6 to change the wheelbase between the front wheel 2 and the rear wheel 4. When the control lever 6 moves to the desired position, it is then locked again by the locking tongue 61 to ensure the reliability of the child stroller.

[0075] It should be noted that when the control lever 6 drives the extension rod 32 to slide upwards or downwards relative to the rear support rod 31, the connecting pin 921 slides relative to the inclined guide groove 321, and simultaneously the connecting pin 921 slides along the movable slide groove 311, thereby driving the basket pole 9 to adjust its posture. When the control lever 6 is locked in the first or second position, the extension rod 32 cannot slide relative to the rear support rod 31, and at this time the connecting pin 921 cannot slide within the inclined guide groove 321 and the movable slide groove 311. This achieves the locking of the positions of the connecting rod 92 and the basket pole 9, ensuring that the basket pole 9 remains in a horizontal posture regardless of whether it is in single-person or two-person vehicle mode, so as to facilitate the user to place items. Of course, in other embodiments, the positions of the control lever 6 and the connecting rod 92 can also be locked in other ways, and are not limited to this embodiment.

[0076] Furthermore, the control lever 6 also includes a housing 62, a pivot 63, a locking part 64, and a pull rope 66. The housing 62 is plate-shaped and supported between two rear support rods 31 on both sides, with the length direction of the housing 62 perpendicular to the rear support rods 31 on both sides. The pivot 63 is disposed on one side of the housing 62 along its width direction, and both ends of the pivot 63 are rotatably connected to the rear support rods 31 on both sides via pivots. In this embodiment, the pivot 63 is located below the second shaft 81, and the first locking hole 312 is located above the pivot 63, while the second locking hole is located below the pivot 63. The locking part 64 is disposed on the other side of the housing 62 along its width direction, with the upper ends of the two linkages 7 rotatably connected to the two ends of the locking part 64, and two latches 61 are retractably disposed at both ends of the locking part 64, with each latch 61 able to pass through the upper end of the corresponding linkage 7 and lock with the corresponding rear support rod 31. The reset element is an elastic element connected to the locking tongue 61, and the elastic element has a tendency to cause the locking tongue 61 to extend out of the locking part 64. Specifically, the elastic element is a compression spring. The unlocking element is an unlocking handle 65, which is located on the housing 62 and on the same side as the locking part 64. The unlocking handle 65 is connected to the pull rope 66, which is connected to the locking tongue 61. By operating the unlocking handle 65, the locking tongue 61 can overcome the elastic force of the elastic element and retract into the locking part 64, thereby unlocking the locking tongue 61 from the rear bracket 3. At this time, the entire control lever 6 can rotate around the pivot in the pivot part 63. When the unlocking handle 65 is released, under the elastic force of the elastic element, the locking tongue 61 pops out of the locking part 64, thereby locking with the first locking hole 312 or the second locking hole, so that the entire control lever 6 is locked and cannot rotate.

[0077] In this embodiment, when switching between single and double-rider vehicle modes, the unlocking lever 65 is first operated to unlock the locking tongue 61 from the rear support 3. Then, the control lever 6 is rotated around the pivot within the pivot section 63 to extend or retract the extension rod 32, thereby changing the wheelbase between the front wheel 2 and the rear wheel 4. Simultaneously, the basket pole 9 follows suit to maintain its posture. Afterward, the unlocking lever 65 is released, and the locking tongue 61 is locked back into the rear support 3, thus completing the entire switching process. This embodiment has a simple structure, convenient adjustment process, and is easy to operate, enabling rapid switching between single and double-rider vehicle modes and saving user time. Of course, in other embodiments, the unlocking structure is not limited to the unlocking lever 65, pull rope 66, and elastic element described in this embodiment; a telescopic rod or other structure can also be used, as long as it can control the extension and retraction of the locking tongue 61.

[0078] Optionally, the rear support 3 further includes an inner sleeve 33, which is fixed inside the rear support rod 31. The extension rod 32 is slidably connected inside the inner sleeve 33. The inner sleeve 33 is provided with a first fixing hole 331 and a second fixing hole 332, wherein the first fixing hole 331 corresponds to the position of the first locking hole 312, and the second fixing hole 332 corresponds to the position of the second locking hole. When the control lever 6 is rotated to the first position, the locking tongue 61 can pass through the first locking hole 312 and the first fixing hole 331 in sequence to lock with the rear support 3; when the control lever 6 is rotated to the second position, the locking tongue 61 can pass through the second locking hole and the second fixing hole 332 in sequence to lock with the rear support 3. In this embodiment, by setting the inner sleeve 33, the sliding of the extension rod 32 relative to the rear support rod 31 is smoother, and the locking of the locking tongue 61 with the rear support 3 is more reliable. Optionally, the extension rod 32 is also provided with a guide groove 322, which extends along the axial direction of the extension rod 32. Meanwhile, the inner sleeve 33 is provided with a sliding part, which is slidably connected to the guide groove 322, thereby further increasing the sliding stability between the inner sleeve 33 and the extension rod 32.

[0079] Optionally, in this embodiment, the back of the housing 62 is provided with a first connecting ear 621, and the lower end of the support rod 8 is hinged to the first connecting ear 621 via a second shaft 81. This improves the connection reliability between the control lever 6 and the support rod 8. That is, in the single-person vehicle mode, the side of the housing 62 with the first connecting ear 621 faces the rear of the vehicle body; in the two-person vehicle mode, the side of the housing 62 with the first connecting ear 621 is rotated to face the front of the vehicle body. Furthermore, the push rod 5 is provided with a second connecting ear 51, and the upper end of the support rod 8 is hinged to the second connecting ear 51 via a third shaft 82. This improves the connection reliability between the support rod 8 and the push rod 5, thereby increasing the safety of the stroller. It should be noted that in some embodiments, the upper end of the support rod 8 can also be slidably connected to the push rod 5, and the upper end of the support rod 8 can rotate relative to the push rod 5 about the third axis 82; in addition, in some embodiments, the lower end of the support rod 8 can also be slidably connected to the rear support rod 31, and the lower end of the support rod 8 can rotate about the second axis 81.

[0080] In this embodiment, the stroller is also equipped with a first seat connector, which is detachably installed at the connection between the front support 1 and the push rod 5, for installing the first seat. When the stroller is switched to single-person mode, the first seat connector can fix the first seat to the stroller, facilitating the riding of a single child. Furthermore, the stroller is also equipped with a second seat connector and a third seat connector. The second seat connector is detachably installed on the front support 1 and located below the first seat connector, for installing the second seat; the third seat connector is detachably installed on the push rod 5 and located above the first seat connector, for installing the third seat. When the stroller is switched to double-person mode, the second and third seat connectors can fix the second and third seat to the stroller, facilitating the riding of two children simultaneously. It should be noted that the first, second, and third seat connectors in this embodiment can all be pre-installed on the stroller, or the corresponding seat connectors can be installed on the stroller when single or double mode is required, or the seat connectors can be directly set on the corresponding seat for assembly with the stroller.

[0081] Furthermore, to facilitate user operation, a handle 10 is provided above and behind the push rod 5 in this embodiment. The handle 10 is slidably connected to the push rod 5, and can be pulled outward or retracted inward relative to the push rod 5. When the stroller is switched to a double stroller mode, pulling out the handle 10 further increases the length of the stroller, providing more space for the installation of two seats and making it easier for the user to push the stroller. Specifically, a latching structure is provided between the handle 10 and the push rod 5. When the stroller is in normal single or double stroller mode, the handle 10 is latched and fixed to the push rod 5. When the length of the handle 10 needs to be adjusted, the latching structure is unlocked, and the handle 10 can be pulled outward or pushed inward.

[0082] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A stroller, characterized in that, include: The front bracket has a front wheel at its bottom; The rear support includes a rear support rod rotatably connected to the front support and an extension rod movably connected to the rear support rod, wherein a rear wheel is provided at the end of the extension rod away from the rear support rod; The push rod is rotatably connected to at least one of the front bracket and the rear bracket; A support rod is provided between the rear support rod and the push rod. The basketball hoop pole is movably mounted on the support pole. The stroller has a first usage state and a second usage state. When switching from the first usage state to the second usage state, the wheelbase between the rear wheel and the front wheel increases; the extension rod moves in the direction of extending the rear support rod. The stroller also has a linkage mechanism that links the extension rod and the basket rod. When the extension rod moves in the direction of extending the rear support rod, the extension rod drives the basket rod to move through the linkage mechanism to adjust the basket rod.

2. The stroller according to claim 1, characterized in that, The basket pole is rotatably mounted on the support pole, and the basket pole has a connecting end that is rotatably connected to the linkage mechanism; As the extension rod slides away from the rear support rod, the linkage mechanism drives the basket rod to rotate so that the connecting end moves downward.

3. The stroller according to claim 2, characterized in that, The linkage mechanism includes a connecting rod that is rotatably connected to the basket pole. The end of the connecting rod away from the basket pole is a movable end, which is movably connected to the extension rod so that when the extension rod moves away from the rear support rod, it drives the connecting rod to move downward as a whole.

4. The stroller according to claim 3, characterized in that, The rear support rod is sleeved outside the extension rod, and the extension rod is provided with an oblique guide groove. The extension direction of the oblique guide groove is oblique to the sliding direction of the extension rod. The extension rod has a stretching direction that slides away from the rear support rod and a shortening direction that slides closer to the rear support rod. The oblique guide groove is inclined away from the stretching direction of the extension rod. The rear support rod is provided with a movable slide groove, which has a first end and a second end. The first end is higher than the second end in the vertical direction. The movable end of the connecting rod is slidably connected to the movable slide groove and the inclined guide groove simultaneously by a connecting pin. When switching from the first use state to the second use state, the connecting pin moves from the first end to the second end.

5. The stroller according to claim 3, characterized in that, The cart also includes: The control lever is rotatably connected to the rear support rod; A linkage component is disposed between the control lever and the extension rod, and the linkage component is rotatably connected to both the control lever and the extension rod. When the control lever is rotated, the linkage drives the extension rod to move in the direction of extending the rear support rod.

6. The stroller according to claim 5, characterized in that, The first end of the support rod is rotatably mounted on the push rod, and the second end of the support rod is rotatably mounted on the back of the control lever via a second shaft. When switching from the first use state to the second use state, the control lever rotates along with the second end of the support rod to move the second shaft downward. In the first usage state, the back of the control lever is positioned facing out of the vehicle body; in the second usage state, the back of the control lever is rotated to face inwards towards the vehicle body.

7. The stroller according to claim 6, characterized in that, The rear support rod is provided with a first locking hole and a second locking hole. The stroller also has a locking tongue, a reset member, and an unlocking member. In the first use state, the reset member can lock the locking tongue with the first locking hole. In the second use state, the reset member can lock the locking tongue with the second locking hole. The unlocking member is used to unlock the locking tongue.

8. The stroller according to claim 7, characterized in that, The joystick also includes: The housing is plate-shaped and supported between the two rear struts; A rotating shaft is disposed inside the housing. Both ends of the rotating shaft are rotatably connected to the rear support rods on both sides. The rotating shaft is located below the second shaft, and the first locking hole is located above the rotating shaft, while the second locking hole is located below the rotating shaft. The locking part is rotatably connected to the upper end of the linkage member, and the locking tongue is retractably disposed at both ends of the locking part. The locking tongue can pass through the upper end of the linkage member and lock with the rear support rod. The reset element is an elastic element, which is disposed at the rear end of the locking tongue and is used to allow the locking tongue to extend out of the locking part; The unlocking component is an unlocking lever, which is connected to the locking tongue via a pull cord and is used to retract the locking tongue back into the locking part.

9. The stroller according to claim 7, characterized in that, The rear support also includes an inner sleeve, which is fixed inside the rear support rod. The extension rod is slidably connected inside the inner sleeve. The inner sleeve is provided with a first fixing hole and a second fixing hole. The first fixing hole corresponds to the position of the first locking hole, and the second fixing hole corresponds to the position of the second locking hole. The first fixing hole and the second fixing hole are respectively used to lock with the locking tongue.

10. The stroller according to claim 9, characterized in that, The extension rod is provided with a guide groove, which extends along the axial direction of the extension rod. The inner sleeve is provided with a sliding part, which is slidably connected to the guide groove.

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