Baby carriage capable of climbing stairs

Abstract

The utility model discloses a baby carriage capable of climbing stairs, which relates to the technical field of baby carriages and comprises a carriage body and two rotating rods, the two rotating rods are arranged on two sides of the lower portion of the carriage body, the two ends of each rotating rod are rotatably connected with supporting plates, the upper ends of the supporting plates are fixedly connected with the carriage body, and the lower ends of the supporting plates are fixedly connected with the carriage body. A plurality of fixing shells are fixedly connected to the rod wall of the rotating rod in an annular array distribution mode, sliding blocks are arranged in the fixing shells in a sliding mode, movable rods are fixedly arranged on one sides of the sliding blocks, one ends of the movable rods extend to the outer sides of the fixing shells, and grooves are formed in one ends of the outer sides of the movable rods; the interior of the groove is rotationally connected with a ladder climbing wheel through a shaft pin, and a cavity is formed in the sliding block. The baby carriage has the stair climbing function, the baby carriage can be pushed to go up and down stairs in a time-saving and labor-saving mode, the size of the stair climbing wheels can be adjusted, and the baby carriage can climb stairs with different thicknesses conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriages, in particular to a baby carriage capable of climbing stairs. Background Art

[0002] Nowadays, baby strollers have wheels at the bottom, so they can move freely on flat ground. However, once they encounter stairs, they have to lift the stroller, which is not easy even for young and strong people, let alone for the elderly who are lifting the stroller.

[0003] Among them, announcement number CN103661545A discloses a baby stroller that is convenient for climbing stairs, and its structure includes a baby stroller body and baby stroller wheels, and the baby stroller wheels are composed of three circular pulleys, which are 120 degrees apart. There are still defects in this technical solution:

[0004] In this technical solution, the size of the circle formed by the multiple circular pulleys is fixed, so the thickness of the steps that the pulleys can climb is fixed. When facing stairs with thicker steps, the stair climbing function cannot be achieved. Summary of the invention

[0005] In view of the above problems existing in the existing baby stroller that is convenient for climbing stairs, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a baby stroller that can climb stairs, which solves the problem that the size of the circle formed by multiple circular pulleys in the prior art baby strollers that are convenient for climbing stairs is fixed, so the thickness of the steps that the pulleys can climb is fixed, and when faced with stairs with thicker steps, the stair climbing function cannot be realized.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A baby stroller that can climb stairs comprises a stroller body and a rotating rod, wherein two rotating rods are arranged on both sides below the stroller body, both ends of the rotating rods are rotatably connected to support plates, and the upper ends of multiple support plates are fixedly connected to the stroller body, the rod wall of the rotating rod is distributed in an annular array and fixedly connected to multiple fixed shells, a slider is slidably arranged inside the fixed shell, a movable rod is fixedly arranged on one side of the slider, one end of the movable rod extends to the outside of the fixed shell, a groove is provided at one end of the outer side of the movable rod, a stair-climbing wheel is rotatably connected to the inside of the groove through an axle pin, a cavity is provided inside the slider, and a limiting mechanism for limiting the movement of the slider relative to the fixed shell is provided inside the cavity.

[0009] Preferably, the limiting mechanism includes a stop block and a clamping block, the stop block is slidably arranged inside the cavity, the clamping block is fixedly arranged on one side of the slider, a plurality of clamping grooves are provided on the side wall of the fixed shell and located on the side close to the clamping block from top to bottom, and one end of the clamping block extends to the outside of the cavity and is clamped with the corresponding clamping groove.

[0010] Preferably, a spring is fixedly provided on one side of the stopper away from the clamping block, and the other end of the spring is fixedly connected to the inner wall of the cavity.

[0011] Preferably, the cross sections of the sliding block and the fixed shell are both rectangular.

[0012] Preferably, the longitudinal sections of the block and the cavity are both rectangular.

[0013] Preferably, an armrest is fixedly provided on one side of the upper end of the vehicle body.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] The utility model releases the limit on the slider by pushing the card block into the cavity, and then slides the slider so that the slider drives the movable rod to move relative to the fixed shell, that is, the ladder wheel moves relative to the rotating rod, and the distances between the plurality of ladder wheels and the rotating rod are adjusted one by one, that is, the radius of the ladders of the plurality of ladder wheels can be adjusted, so as to facilitate climbing of stairs of different thicknesses. After the adjustments are in place, the card block is released, and the spring elastic force pushes the card block to reset, so that the card block is engaged with the corresponding card slot, that is, the ladder wheel can be limited, and a stable ladder climbing action can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 This is a schematic structural diagram of a baby stroller capable of climbing stairs proposed by the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the internal structure;

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0020] Description of reference numerals:

[0021] 1. Vehicle body; 2. Support plate; 3. Rotating rod; 4. Fixed shell; 5. Sliding block; 6. Movable rod; 7. Ladder wheel; 8. Stop block; 9. Spring; 10. Block; 11. Axle pin; 12. Handrail. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] The utility model embodiment discloses a baby carriage capable of climbing stairs.

[0024] Reference Figure 1-3 A baby stroller that can climb stairs includes a stroller body 1 and a rotating rod 3. The two rotating rods 3 are arranged on both sides of the lower part of the stroller body 1. A handrail 12 is fixedly arranged on one side of the upper end of the stroller body 1 to facilitate pushing the stroller body 1. Both ends of the rotating rod 3 are rotatably connected to support plates 2. The upper ends of multiple support plates 2 are fixedly connected to the stroller body 1. The rod wall of the rotating rod 3 is distributed in an annular array and fixedly connected to multiple fixed shells 4. A slider 5 is slidably arranged inside the fixed shell 4. The cross-sections of the slider 5 and the fixed shell 4 are both rectangular, so that the slider 5 cannot rotate, that is, it can slide stably. A movable rod 6 is fixedly arranged on one side of the slider 5. One end of the movable rod 6 extends to the outside of the fixed shell 4. A groove is opened at one end of the outer side of the movable rod 6. The inside of the groove is rotatably connected to a ladder wheel 7 through an axle pin 11, and a cavity is opened inside the slider 5.

[0025] Reference Figure 1-3 A limiting mechanism for limiting the movement of the slider 5 relative to the fixed shell 4 is provided inside the cavity. The limiting mechanism includes a stopper 8 and a card block 10. The stopper 8 is slidably arranged inside the cavity. The card block 10 is fixedly arranged on one side of the slider 5. A plurality of card slots are provided from top to bottom on the side wall of the fixed shell 4 and on the side close to the card block 10. One end of the card block 10 extends to the outside of the cavity and is engaged with the corresponding card slot. A spring 9 is fixedly arranged on the side of the stopper 8 away from the card block 10. The other end of the spring 9 is fixedly connected to the inner wall of the cavity, so that the card block 10 can be stably engaged with the card slot. The longitudinal sections of the stopper 8 and the cavity are both rectangular, so that the stopper 8 cannot rotate, that is, it can slide stably.

[0026] When the slider 5 is in use, the block 10 is pushed into the cavity to release the limit of the slider 5, and then the slider 5 is slid, so that the slider 5 drives the movable rod 6 to move relative to the fixed shell 4, that is, the ladder wheel 7 moves relative to the rotating rod 3, and the spacing between the plurality of ladder wheels 7 and the rotating rod 3 is adjusted one by one, that is, the radius of the ladder of the plurality of ladder wheels 7 can be adjusted, so as to facilitate climbing of stairs of different thicknesses. After the adjustment is in place, the block 10 is released, and the elastic force of the spring 9 pushes the block 10 to reset, so that the block 10 is engaged with the corresponding slot, that is, the ladder wheel 7 can be limited, that is, a stable ladder climbing action can be performed.

[0027] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A baby stroller capable of climbing stairs, comprising a stroller body (1) and a rotating rod (3), characterized in that: The two rotating rods (3) are arranged on both sides below the vehicle body (1), and both ends of the rotating rods (3) are rotatably connected to support plates (2), and the upper ends of the plurality of support plates (2) are fixedly connected to the vehicle body (1). The rod wall of the rotating rod (3) is arranged in a circular array and fixedly connected to a plurality of fixed shells (4), and a slider (5) is slidably arranged inside the fixed shell (4). A movable rod (6) is fixedly arranged on one side of the slider (5), and one end of the movable rod (6) extends to the outside of the fixed shell (4). A groove is provided at one end of the outside of the movable rod (6), and a climbing wheel (7) is rotatably connected to the inside of the groove via a shaft pin (11). A cavity is provided inside the slider (5), and a limiting mechanism for limiting the movement of the slider (5) relative to the fixed shell (4) is provided inside the cavity.

2. The stair-climbing baby stroller according to claim 1, characterized in that: The limiting mechanism comprises a stopper (8) and a clamping block (10), wherein the stopper (8) is slidably arranged inside the cavity, and the clamping block (10) is fixedly arranged on one side of the slider (5). A plurality of clamping grooves are provided on the side wall of the fixed shell (4) and on a side close to the clamping block (10) from top to bottom, and one end of the clamping block (10) extends to the outside of the cavity and is clamped with the corresponding clamping groove.

3. The stair-climbing baby stroller according to claim 2, characterized in that: A spring (9) is fixedly arranged on one side of the stopper (8) away from the clamping block (10), and the other end of the spring (9) is fixedly connected to the inner wall of the cavity.

4. The stair-climbing baby stroller according to claim 1, characterized in that: The cross sections of the sliding block (5) and the fixed shell (4) are both rectangular.

5. The stair-climbing baby stroller according to claim 2, characterized in that: The longitudinal cross-sections of the stopper (8) and the cavity are both rectangular.

6. The stair-climbing baby stroller according to claim 1, characterized in that: An armrest (12) is fixedly provided on one side of the upper end of the vehicle body (1).

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