Baby carriage

Abstract

The utility model relates to a baby carriage, which belongs to the technical field of baby carriages and comprises a front carriage body and a rear carriage body which are connected with each other, the front carriage body comprises a rotating seat, a handlebar and two wheels, the handlebar is arranged on the rotating seat, and the two wheels are controlled to synchronously swing left and right through a left parallelogram connecting rod structure and a right parallelogram connecting rod structure. The left parallelogram connecting rod structure and the right parallelogram connecting rod structure comprise supporting rods, supporting seats, rotating rods and auxiliary plates, the supporting rods, the supporting seats, the rotating rods and the auxiliary plates are hinged to one another, the two wheels are rotationally arranged on the supporting seats respectively, and the two parallelogram connecting rod structures share one auxiliary plate. The parallelogram connecting rods are simple in structure, the front stroller body can be folded, the distance between the two wheels can be adjusted, and the overall occupied area of the baby stroller is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of baby carriages, and particularly refers to a baby carriage. Background Art

[0002] Baby carriages are a major category of children's toys, including children's bicycles, baby strollers, baby walkers, children's tricycles, children's electric vehicles, etc. Among them, children's electric vehicles generally have four wheels and imitate the shapes of go-karts, cars, sports cars, etc.

[0003] In the prior art, manual adjustment of the direction is required for use, which is time-consuming and laborious. At the same time, the overall structure is installed in a welded one-piece manner, making it difficult to disassemble quickly, increasing the labor intensity during later maintenance and repair. Therefore, a chassis steering structure needs to be designed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a baby carriage with a simple and reasonable structure, a simple parallelogram link structure, a foldable front body, and the ability to adjust the distance between two wheels to reduce the overall occupied volume.

[0005] The purpose of the utility model is achieved as follows:

[0006] A baby carriage includes a front body and a rear body connected to each other. The front body includes a rotating seat, a handlebar, and two wheels. The handlebar is arranged on the rotating seat and controls the synchronous left and right swing of the two wheels through two left and right parallelogram link structures. The two left and right parallelogram link structures include a support rod, a support seat, a rotating rod, and an auxiliary plate that are hinged to each other. The two wheels are respectively rotatably arranged on the support seats, and the two parallelogram link structures share one auxiliary plate.

[0007] In the above baby carriage, a rotating shaft is arranged in the rotating seat. The two ends of the support rod are respectively hinged to the rotating shaft and the support seat. The lower end of the handlebar is connected with a swing plate through a universal coupling. One end of the swing plate away from the universal coupling is rotatably connected with one end of the rotating rod through a connecting shaft, and the other end of the rotating rod is rotatably connected with the support seat.

[0008] In the above baby carriage, the universal coupling includes an upper rotating rod, a lower rotating rod, and a connecting body. The upper rotating rod and the lower rotating rod are connected to each other through the connecting body. The upper rotating rod is fixedly connected with the handlebar. A rotating shaft is arranged in the lower rotating rod. A rotating hole for accommodating the rotating shaft is arranged on the rotating seat. One end of the swing plate is connected with the rotating shaft, and the rotation of the handlebar can drive the swing plate to swing.

[0009] In the above-mentioned baby carriage, the front body and the rear body are connected to each other by a connecting rod. The handlebar is rotatably arranged on a rotating seat. A sliding adjustment device is slidably arranged on the connecting rod. The handlebar and two parallelogram link structures are movably connected to the sliding adjustment device by a link. When the sliding adjustment device approaches the rear body, the handlebar and the two wheels both approach the connecting rod; when the sliding adjustment device moves away from the rear body, the handlebar and the two wheels both move away from the connecting rod.

[0010] In the above-mentioned baby carriage, the sliding adjustment device includes a housing, a left locking seat, a right locking seat and an unlocking seat. The left locking seat and the right locking seat are both located inside the housing, and a spring is arranged between the left locking seat and the right locking seat. The left locking seat and the right locking seat are always pushed away from each other by the elastic force of the spring. The left locking seat and the right locking seat are both provided with locking shafts for extending out of the housing. The upper end of the unlocking seat extends out of the housing, and its lower end cooperates with the left locking seat and the right locking seat. By pressing the unlocking seat, the left locking seat and the right locking seat can be controlled to approach each other. The connecting rod is provided with locking holes for the locking shafts to be inserted into.

[0011] In the above-mentioned baby carriage, driving inclined grooves are arranged on the left locking seat and the right locking seat, and driving inclined blocks for cooperating with the driving inclined grooves are arranged on the unlocking seat.

[0012] In the above-mentioned baby carriage, a locking button for blocking the left locking seat and the right locking seat from approaching each other is arranged inside the housing. A spring is arranged between the locking button and the housing, and the upper end of the locking button extends out of the housing.

[0013] In the above-mentioned baby carriage, a blocking block is arranged on one side of the locking button close to the unlocking seat. There is a gap between the left locking seat and the right locking seat. The blocking block is located in the gap. By pressing the locking button, the blocking block can leave the gap between the left locking seat and the right locking seat.

[0014] In the above-mentioned baby carriage, the extending ends of the locking button and the unlocking seat are both located on the same side of the housing.

[0015] The prominent and beneficial technical effects of the present utility model compared with the prior art are as follows:

[0016] 1. The handlebar of the present utility model can directly control the rotation of the wheels through the parallelogram link structure, and the overall structure is relatively simple and the steering is flexible.

[0017] 2. The support rod and the faucet of the front vehicle body are matched with the sliding adjustment device and the connecting rod through a connecting rod, so that the two wheels of the front vehicle body can be close to the connecting rod. At the same time, the faucet pipe and the faucet can also be arranged close to the connecting rod. When not in use, the overall floor area can be reduced, which is convenient for packaging and transportation. When in use, the two wheels of the front vehicle body and the faucet can be unfolded by pushing the sliding adjustment device, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is one of the structural schematic diagrams of the present utility model;

[0019] Figure 2 is the second structural schematic diagram of the present utility model;

[0020] Figure 3 is the sectional view of the present utility model;

[0021] Figure 4 is the enlarged view at A of the present utility model;

[0022] Figure 5 is the structural schematic diagram of the rotating seat, the connecting rod and the link structure of the present utility model;

[0023] Figure 6 is the exploded view of the rotating seat, the connecting rod and the link structure of the present utility model;

[0024] Figure 7 is the structural schematic diagram of the universal coupling of the present utility model;

[0025] Figure 8 is the sectional view of the sliding adjustment device of the present utility model;

[0026] Figure 9 is the internal structural schematic diagram of the sliding adjustment device of the present utility model;

[0027] The meanings represented by the reference numerals in the drawings:

[0028] 1 - Front vehicle body; 2 - Rear vehicle body; 3 - Connecting rod; 4 - Sliding adjustment device; 5 - Link structure; 6 - Link;

[0029] 11 - Rotating seat; 13 - Faucet; 14 - Wheel; 15 - Rotating shaft; 41 - Housing; 42 - Left locking seat; 43 - Right locking seat; 44 - Unlocking seat; 45 - Locking shaft; 46 - Locking hole; 47 - Driving inclined groove; 48 - Driving inclined block; 49 - Locking button; 51 - Support rod; 53 - Support seat; 55 - Rotating rod; 57 - Swing plate; 58 - Universal coupling; 59 - Connecting shaft; 151 - Auxiliary plate; 491 - Blocking block; 492 - Gap; 581 - Upper rotating rod; 582 - Lower rotating rod; 583 - Connecting body; 584 - Rotating shaft; 585 - Rotating hole. Detailed implementation manners

[0030] The following further describes the present utility model in conjunction with specific embodiments:

[0031] As Figures 1-9 shown: A baby carriage includes a front body 1 and a rear body 2 connected to each other. The front body 1 includes a rotating seat 11, a handlebar 13 and two wheels 14. The handlebar 13 is arranged on the rotating seat 11 and controls the synchronous left - and - right swing of the two wheels 14 through two left - and - right parallelogram link structures 5. The two left - and - right parallelogram link structures 5 include a support rod 51, a support seat 53, a rotating rod 55 and an auxiliary plate 151 that are hinged to each other. The two wheels 14 are respectively rotatably arranged on the support seat 53, and the two parallelogram link structures 5 share an auxiliary plate 151. A rotating shaft 15 is arranged in the rotating seat 11. The two ends of the support rod 51 are respectively hinged to the rotating shaft 15 and the support seat 53. The lower end of the handlebar 13 is connected with a swing plate 57 through a universal coupling 58. One end of the swing plate 57 away from the universal coupling 58 is rotatably connected to one end of the rotating rod 55 through a connecting shaft 59, and the other end of the rotating rod 55 is rotatably connected to the support seat 53. Specifically, this is to ensure the normal use of the parallelogram while reducing materials and costs. At the same time, when the handlebar rotates, it can drive the swing plate to swing. The swing plate is connected to the rotating rod, thereby driving the rotation of the two wheels. The structure is simple and reasonable.

[0032] In the above - mentioned baby carriage, the universal coupling 58 includes an upper rotating rod 581, a lower rotating rod 582 and a connecting body 583. The upper rotating rod 581 and the lower rotating rod 582 are connected to each other through the connecting body 583. The upper rotating rod 581 is fixedly connected to the handlebar 13. A rotating shaft 584 is arranged in the lower rotating rod 582. A rotating hole 585 for accommodating the rotating shaft 584 is arranged on the rotating seat 11. One end of the swing plate 57 is connected to the rotating shaft 584, and the rotation of the handlebar 13 can drive the swing plate 57 to swing. Specifically, when the handlebar rotates, it can drive the upper rotating rod to rotate. The upper rotating rod drives the lower rotating rod to rotate through the connecting body. The connecting body is a cube structure, which can improve the bearing capacity of the connecting body. The rotating hole arranged on the rotating seat is used to cooperate with the rotating shaft, which can ensure that the lower end of the universal coupling is always positioned by the rotating hole, ensuring the stability of the handlebar rotation.

[0033] In the above-mentioned baby carriage, the front body 1 and the rear body 2 are connected to each other by a connecting rod 3. The front handle 13 is rotatably arranged on a rotating seat 11. A sliding adjustment device 4 is slidably arranged on the connecting rod 3. The front handle 13 and two parallelogram link structures 5 are movably connected to the sliding adjustment device 4 by a connecting rod 6. When the sliding adjustment device 4 approaches the rear body 2, the front handle 13 and the two wheels 14 both approach the connecting rod 3. When the sliding adjustment device 4 moves away from the rear body 2, the front handle 13 and the two wheels 14 both move away from the connecting rod 3. There are two connecting rods 3. The sliding adjustment device 4 includes a housing 41, a left locking seat 42, a right locking seat 43 and an unlocking seat 44. The left locking seat 42 and the right locking seat 43 are both located inside the housing 41. A spring is arranged between the left locking seat 42 and the right locking seat 43. The left locking seat 42 and the right locking seat 43 are always pushed away from each other by the elastic force of the spring. The left locking seat 42 and the right locking seat 43 are both provided with locking shafts 45 for protruding out of the housing 41. The upper end of the unlocking seat 44 protrudes out of the housing 41, and its lower end cooperates with the left locking seat 42 and the right locking seat 43. By pressing the unlocking seat 44, the left locking seat 42 and the right locking seat 43 can be controlled to approach each other. Locking holes 46 for inserting the locking shafts 45 are arranged on the connecting rod 3. The two connecting rods are respectively provided with locking holes.

[0034] In the above-mentioned baby carriage, driving inclined grooves 47 are arranged on the left locking seat 42 and the right locking seat 43. Driving inclined blocks 48 which are matched with the driving inclined grooves 47 are arranged on the unlocking seat 44. Specifically, there are two driving inclined blocks, and both are located in the driving inclined grooves. When the unlocking seat is pressed down, the left locking seat and the right locking seat can be controlled to approach each other simultaneously.

[0035] In the above-mentioned baby carriage, a locking button 49 for blocking the left locking seat 42 and the right locking seat 43 from approaching each other is arranged inside the housing 41. A spring is arranged between the locking button 49 and the housing 41. The upper end of the locking button 49 protrudes out of the housing 41. A blocking block 491 is arranged on one side of the locking button 49 close to the unlocking seat 44. There is a gap 492 between the left locking seat 42 and the right locking seat 43. The blocking block 491 is located in the gap 492. By pressing the locking button 49, the blocking block 491 can leave the gap 492 between the left locking seat 42 and the right locking seat 43. Specifically, in use, the locking button needs to be pressed first to make the blocking block disengage from the gap, and then the unlocking seat is pressed to make the locking shafts on the left locking seat and the right locking seat disengage from the locking holes on the connecting rod. Then the housing can be pushed to the set position. By adopting a double locking function, the risk of accidental operation by children can be avoided.

[0036] In the above-mentioned baby carriage, the protruding ends of the locking button 49 and the unlocking seat 44 are both located on the same side of the housing 41. Specifically, this is to facilitate the operator to unlock.

[0037] The above embodiments are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A baby carriage, comprising a front body (1) and a rear body (2) which are connected to each other, characterized in that: The front vehicle body (1) includes a rotating seat (11), a faucet (13) and two wheels (14). The faucet (13) is arranged on the rotating seat (11) and controls the synchronous left - right swing of the two wheels (14) through two left - right parallelogram link structures (5). The two left - right parallelogram link structures (5) include support rods (51), support seats (53), rotating rods (55) and auxiliary plates (151) that are hinged to each other. The two wheels (14) are respectively rotatably arranged on the support seats (53), and the two parallelogram link structures (5) share one auxiliary plate (151).

2. The stroller according to claim 1, wherein: A rotating shaft (15) is arranged inside the rotating seat (11). The two ends of the support rod (51) are respectively hinged to the rotating shaft (15) and the support seat (53). The lower end of the faucet (13) is connected with a swing plate (57) through a universal coupling (58). One end of the swing plate (57) away from the universal coupling (58) is rotatably connected to one end of the rotating rod (55) through a connecting shaft (59), and the other end of the rotating rod (55) is rotatably connected to the support seat (53).

3. The stroller according to claim 2, wherein: The universal coupling (58) includes an upper rotating rod (581), a lower rotating rod (582) and a connecting body (583). The upper rotating rod (581) and the lower rotating rod (582) are connected to each other through the connecting body (583). The upper rotating rod (581) is fixedly connected to the faucet (13). A rotating shaft (584) is arranged inside the lower rotating rod (582). A rotating hole (585) for accommodating the rotating shaft (584) is arranged on the rotating seat (11). One end of the swing plate (57) is connected to the rotating shaft (584), and the rotation of the faucet (13) can drive the swing plate (57) to swing.

4. The stroller according to claim 1 or 2 or 3, characterized in that: The front vehicle body (1) and the rear vehicle body (2) are connected to each other through a connecting rod (3). The faucet (i3) is rotatably arranged on the rotating seat (11). A sliding adjustment device (4) is slidably arranged on the connecting rod (3). The faucet (13) and the two parallelogram link structures (5) are movably connected to the sliding adjustment device (4) through a connecting rod (6). When the sliding adjustment device (4) approaches the rear vehicle body (2), the faucet (13) and the two wheels (14) both approach the connecting rod (3); when the sliding adjustment device (4) moves away from the rear vehicle body (2), the faucet (13) and the two wheels (14) both move away from the connecting rod (3).

5. The stroller according to claim 4, wherein: The sliding adjustment device (4) includes a housing (41), a left locking seat (42), a right locking seat (43) and an unlocking seat (44). The left locking seat (42) and the right locking seat (43) are both located inside the housing (41), and a spring is provided between the left locking seat (42) and the right locking seat (43). The left locking seat (42) and the right locking seat (43) are always pushed away from each other by the elastic force of the spring. Both the left locking seat (42) and the right locking seat (43) are provided with locking shafts (45) for protruding out of the housing (41). The upper end of the unlocking seat (44) protrudes out of the housing (41), and its lower end cooperates with the left locking seat (42) and the right locking seat (43). By pressing the unlocking seat (44), the left locking seat (42) and the right locking seat (43) can be controlled to approach each other. A locking hole (46) for inserting the locking shaft (45) is provided on the connecting rod (3).

6. The stroller according to claim 5, wherein: Drive inclined grooves (47) are provided on the left locking seat (42) and the right locking seat (43), and drive inclined blocks (48) cooperating with the drive inclined grooves (47) are provided on the unlocking seat (44).

7. The stroller according to claim 6, wherein: A locking button (49) for blocking the left locking seat (42) and the right locking seat (43) from approaching each other is provided inside the housing (41). A spring is provided between the locking button (49) and the housing (41). The upper end of the locking button (49) protrudes out of the housing (41).

8. The stroller according to claim 7, wherein: A blocking block (491) is provided on one side of the locking button (49) close to the unlocking seat (44). There is a gap (492) between the left locking seat (42) and the right locking seat (43). The blocking block (491) is located in the gap (492). By pressing the locking button (49), the blocking block (491) can leave the gap (492) between the left locking seat (42) and the right locking seat (43).

9. The stroller according to claim 8, wherein: The protruding ends of the locking button (49) and the unlocking seat (44) are both located on the same side of the housing (41).

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