Single-hand adjusting mechanism for angle of backrest of baby stroller

Abstract

The utility model relates to the technical field of baby strollers, and discloses a baby stroller backrest angle single-hand adjusting mechanism which comprises two supporting seats, a supporting rod is arranged on the two supporting seats, a spraying head is arranged on one side of the supporting rod, a backrest assembly for supporting the back of a baby is arranged on one side of the supporting rod, and a handle is arranged on the other side of the supporting rod. One side of the backrest assembly is provided with an adjusting assembly which enables a person to adjust the inclination angle of the backrest assembly with one hand; by arranging the backrest assembly, the adjusting assembly and the fixing assembly, when the angle of the backrest assembly is adjusted, an adjusting line of the adjusting assembly can be wound by rotating the adjusting assembly, so that the backrest assembly is pulled to move, the angle of the backrest assembly can be adjusted, and the adjusting assembly can be fixed after adjustment is completed through the fixing assembly; in this way, the angle of the backrest assembly can be adjusted, and the angle of the backrest assembly can be adjusted by one hand of a person.

Description

Technical Field

[0001] The utility model relates to the technical field of baby strollers, in particular to a one-handed adjustment mechanism for a backrest angle of a baby stroller. Background Art

[0002] At present, with the continuous improvement of economic level and the increase in the number of newborns, the demand for baby products is growing, the number of brands is increasing, the health and care of pregnant women and babies are receiving more and more attention from the society, and the quality requirements for daily necessities for pregnant women and babies are getting higher and higher. As a result, the market for strollers has higher and higher requirements for the quality of baby strollers.

[0003] A baby stroller is disclosed in the Chinese utility model patent publication number CN218777585U. Although the above-mentioned prior art is convenient for users to operate and has a small volume after folding, which is easy to store, the baby's sitting posture is extremely unstable and basically needs to lie down or adjust the tilt angle for a period of time. Because the baby's spine is relatively flexible and cannot support the baby's sitting posture for a long time, the baby stroller needs to be able to adjust the angle of the backrest. However, adjusting the backrest of the baby stroller outdoors is more troublesome because the objects held in both hands need to be put down. The baby's personal items cannot be placed on the ground because they will be contaminated with bacteria. Therefore, the baby can only be held with one hand and the other hand can be used to adjust the backrest. This makes the adjustment speed of the baby stroller backrest slow, affecting the normal use of the baby stroller. Therefore, it is necessary to design a baby stroller with a backrest angle that can be quickly adjusted with one hand. Utility Model Content

[0004] In order to solve the technical problem that it is inconvenient to adjust the backrest angle of a baby stroller with one hand, the utility model provides a one-handed adjustment mechanism for the backrest angle of a baby stroller.

[0005] The utility model is implemented by the following technical solutions: a one-hand adjustment mechanism for the backrest angle of a baby stroller, comprising two support seats, support rods being provided on the two support seats, a shower head being provided on one side of the support rod, a backrest assembly for supporting the back of the baby being provided on one side of the support rod, an adjustment assembly being provided on one side of the backrest assembly so that a person can adjust the inclination angle of the backrest assembly with one hand, a fixing assembly being provided inside the adjustment assembly for fixing the adjustment assembly, the backrest assembly comprising a rotating shaft rotatably mounted between the two support seats and a backrest plate fixedly mounted on one side of the rotating shaft, the adjustment assembly comprising a rotating column rotatably mounted on one side of the backrest plate, a cord reel fixedly sleeved on the rotating column and an adjustment cord wound on the cord reel, both ends of the adjustment cord extending to one side of the support rod and fixedly connected to the support rod.

[0006] With the above technical solution, the adjustment line can be tightened by twisting the adjustment assembly with one hand, thereby driving the backrest assembly to move, so that the inclination angle of the backrest assembly can be adjusted.

[0007] As a further improvement of the above solution, the outer portion of the rotating column is provided with a protective ring fixedly mounted on the backrest plate, and one side of the protective ring is fixedly mounted with a cover plate rotatably mounted on the rotating column.

[0008] Through the above technical solution, the protective ring can keep the internal parts tightly fitted to prevent loosening.

[0009] As a further improvement of the above solution, rope threading holes are provided on both sides of the protection ring, and both of the rope threading holes are adapted to the adjustment wire.

[0010] With the above technical solution, when the adjustment line is pulled, it will be retracted into the protective ring to prevent the adjustment line from loosening.

[0011] As a further improvement of the above solution, a supporting plate fixedly mounted on the inner wall of the protective ring is provided on the rotating sleeve of the rotating column.

[0012] Through the above technical solution, the support plate will separate the reel to prevent parts from affecting the reeling of the reel.

[0013] As a further improvement of the above solution, the fixing assembly includes a ratchet fixedly mounted on the rotating column, a rotating block with a torsion spring inside and mounted on one side of the support plate, and a stopper mounted on one side of the rotating block, and the stopper is adapted to the ratchet.

[0014] Through the above technical solution, the rotating block and the stop block cooperate with the ratchet to fix the rotating column after rotation, preventing the rotating column from reversing and causing the winding of the adjustment line to fail.

[0015] As a further improvement of the above solution, a sliding opening is provided on one side of the cover plate, and a sliding bar with one end passing through the sliding opening is fixedly mounted on one side of the stopper.

[0016] With the above technical solution, the stopper can be moved by moving the sliding bar at the sliding opening, thereby releasing the restrictive effect on the ratchet.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model provides a backrest component, an adjustment component and a fixing component. When adjusting the angle of the backrest component, the adjustment line of the adjustment component can be wound by rotating the adjustment component, thereby pulling the backrest component to move, so that the angle of the backrest component can be adjusted. The fixing component can fix the adjustment component after the adjustment is completed, so that the baby can lean on the backrest component very stably. This arrangement can not only adjust the angle of the backrest component, but also allow people to adjust it with one hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model having an adjustment component;

[0021] Figure 3 It is a structural schematic diagram of the utility model with fixed components.

[0022] Description of main symbols:

[0023] 1. Support seat; 2. Support rod; 3. Shower head; 401. Rotating shaft; 402. Backrest; 501. Rotating column; 502. Reel; 503. Adjusting line; 601. Ratchet; 602. Rotating block; 603. Stop block; 7. Protective ring; 8. Cover plate; 9. Support plate; 10. Sliding bar. DETAILED DESCRIPTION

[0024] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Please combine Figure 1-Figure 3, a one-hand adjustment mechanism for the backrest angle of a baby stroller of the present embodiment includes two support seats 1, a support rod 2 is provided on the two support seats 1, a shower head 3 is provided on one side of the support rod 2, and a backrest component for supporting the back of the baby is provided on one side of the support rod 2. An adjustment component is provided on one side of the backrest component so that a person can adjust the inclination angle of the backrest component with one hand, and a fixing component is provided inside the adjustment component to fix the adjustment component. The backrest component includes a rotating shaft 401 rotatably mounted between the two support seats 1 and a backrest plate 402 fixedly mounted on one side of the rotating shaft 401. The adjustment component includes a rotating column 501 rotatably mounted on one side of the backrest plate 402, a reel 502 fixedly sleeved on the rotating column 501, and an adjustment line 503 wound on the reel 502. Both ends of the adjustment line 503 extend to one side of the support rod 2 and are fixedly connected to the support rod 2. By twisting the adjustment component with one hand, the adjustment line 503 can be tightened, thereby driving the backrest component to move, so that the inclination angle of the backrest component can be adjusted.

[0026] Combine Figure 1 and Figure 2 The outer part of the rotating column 501 is provided with a protective ring 7 fixedly mounted on the backrest plate 402, and a cover plate 8 is fixedly mounted on one side of the protective ring 7 and rotatably mounted on the rotating column 501. Rope holes are provided on both sides of the protective ring 7, and the two rope holes are adapted to the adjustment line 503. When the adjustment line 503 is pulled, it will be retracted into the protective ring 7 to prevent the adjustment line 503 from loosening.

[0027] Combine Figure 1-Figure 3 The rotating column 501 is provided with a supporting plate 9 fixedly mounted on the inner wall of the protective ring 7. The fixing assembly includes a ratchet 601 fixedly mounted on the rotating column 501, a rotating block 602 with a torsion spring inside and mounted on one side of the support plate 9, and a stopper 603 mounted on one side of the rotating block 602. The stopper 603 is adapted to the ratchet 601. A sliding opening is provided on one side of the cover plate 8. A sliding bar 10 with one end passing through the sliding opening is fixedly mounted on one side of the stopper 603. The rotating block 602 and the stopper 603 cooperate with the ratchet 601 to fix the rotating column 501 after rotation, thereby preventing the rotating column 501 from reversing and causing the winding of the adjustment line 503 to fail.

[0028] The implementation principle of a one-hand adjustment mechanism for the backrest angle of a baby stroller in the embodiment of the present application is as follows: when the angle of the stroller backrest board 402 needs to be adjusted, the rotating column 501 can be rotated to allow the reel 502 to reel up the adjustment line 503, and the adjustment line 503 will be straightened when it is reeled up, thereby pulling the backrest board 402 to adjust the angle. When the adjustment is completed, the baby leans against the backrest board 402, and the backrest board 402 is under pressure and pulls the adjustment line 503. However, due to the cooperation between the ratchet 601, the rotating block 602 and the stop block 603, the rotating column 501 cannot complete the reverse rotation, so the position of the backrest board 402 will not be pushed. Although the backrest 402 cannot be tilted backward, it can still be tilted forward. However, the baby will not pull the backrest 402 when leaning on it, so the backrest 402 will not automatically tilt forward. When the backrest 402 needs to be tilted backward, you only need to manually move the sliding bar 10 to move the block 603, so that the fixing effect of the ratchet 601 can be cancelled, so that the backrest 402 can be adjusted to any angle. In this way, you only need to turn the rotating column 501 with one hand to complete the angle adjustment of the backrest 402. When there is a shielding cloth behind the backrest 402, you only need to expose the rotating column 501.

[0029] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A one-handed adjustment mechanism for the backrest angle of a baby stroller, comprising two support seats (1), wherein the two support seats (1) are provided with support rods (2), and a shower head (3) is provided on one side of the support rod (2), characterized in that: A backrest assembly for supporting the back of an infant is provided on one side of the support rod (2), an adjustment assembly for enabling a person to adjust the tilt angle of the backrest assembly with one hand is provided on one side of the backrest assembly, a fixing assembly for fixing the adjustment assembly is provided inside the adjustment assembly, the backrest assembly comprises a rotating shaft (401) rotatably mounted between two support seats (1) and a backrest plate (402) fixedly mounted on one side of the rotating shaft (401), the adjustment assembly comprises a rotating column (501) rotatably mounted on one side of the backrest plate (402), a reel (502) fixedly sleeved on the rotating column (501), and an adjustment line (503) wound around the reel (502), both ends of the adjustment line (503) extending to one side of the support rod (2) and fixedly connected to the support rod (2).

2. A baby stroller backrest angle one-hand adjustment mechanism according to claim 1, characterized in that: The outer portion of the rotating column (501) is provided with a protective ring (7) fixedly mounted on the backrest plate (402), and one side of the protective ring (7) is fixedly mounted with a cover plate (8) rotatably mounted on the rotating column (501).

3. A one-handed adjustment mechanism for the backrest angle of a baby stroller according to claim 2, characterized in that: Rope holes are provided on both sides of the protection ring (7), and both of the rope holes are adapted to the adjustment line (503).

4. A baby stroller backrest angle one-hand adjustment mechanism according to claim 2, characterized in that: A support plate (9) is rotatably sleeved on the rotating column (501) and is fixedly mounted on the inner wall of the protective ring (7).

5. A baby stroller backrest angle one-hand adjustment mechanism according to claim 4, characterized in that: The fixing assembly comprises a ratchet (601) fixedly sleeved on the rotating column (501), a rotating block (602) provided with a torsion spring inside and mounted on one side of the support plate (9), and a stopper (603) mounted on one side of the rotating block (602), wherein the stopper (603) is adapted to the ratchet (601).

6. A one-handed adjustment mechanism for the backrest angle of a baby stroller according to claim 5, characterized in that: A sliding opening is provided on one side of the cover plate (8), and a sliding bar (10) with one end passing through the sliding opening is fixedly mounted on one side of the stop block (603).

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