One-step double-brake structure for baby carriage

Abstract

The utility model discloses a one-step double-brake structure for a baby carriage, and relates to the technical field of baby carriage brakes, the one-step double-brake structure comprises a first wheel, a second wheel, a rotating shaft structure and a pedal limiting structure, the pedal limiting structure comprises a brake pedal, a limiting clamping block and a limiting lantern ring, and the limiting lantern ring is fixedly sleeved in the middle of the rotating shaft structure. A plurality of limiting clamping protrusions arranged at equal intervals are arranged on the outer portion of the limiting lantern ring, the brake pedal is rotatably arranged on the outer portion of the limiting lantern ring in a sleeving mode, and the middle of the limiting clamping block is rotatably installed in the brake pedal. During use, a user treads the plate block with the foot, so that the tail end of the limiting clamping block abuts against the limiting clamping protrusion of the limiting lantern ring, rotation of the limiting lantern ring is limited, the one-treading double-brake function is achieved, when braking needs to be unlocked, the plate block is treaded downwards again, the unlocking push block will push the limiting lantern ring forwards at the moment, the limiting clamping block is made to rotate, and therefore the user can unlock the brake. And therefore, the one-step double-unlocking function is realized, and convenience is brought to the use of a user.

Description

Technical Field

[0001] The utility model relates to the technical field of baby carriage brakes, in particular to a one-step double-brake structure for a baby carriage. Background Art

[0002] Existing baby strollers generally have a brake mechanism. When the stroller stops, simply pressing the brake mechanism locks the stroller's wheels, preventing the stroller from moving, avoiding accidents, and improving safety. Currently, there are two main types of rear wheel brake mechanisms in umbrella-type baby strollers. One type is equipped with separate brake mechanisms on each of the stroller's rear wheels. These mechanisms can only be operated individually, requiring two actions to achieve safe braking. This is inconvenient for the user and poses a safety hazard. The other type is to connect the brake mechanisms of the two rear wheels of the stroller via a single brake rope, so that the two rear wheel brake mechanisms brake in tandem. However, this mechanism has two different operating modes during use. One is that the operator can only operate a specific set of rear wheel mechanisms to achieve simultaneous braking or release of both rear wheels. The other is a structure that uses one set of rear wheel mechanisms for braking and releasing the brakes simultaneously, while the other uses a structure that uses one set of rear wheel mechanisms for braking and releasing the brakes simultaneously. Although these two structures achieve the functional requirement of achieving simultaneous braking or releasing of both rear wheels with a single action, they require the user to selectively operate the brakes, which is inconvenient for the user. Utility Model Content

[0003] The purpose of the utility model is to provide a one-step double-brake structure for a baby carriage, aiming to solve the above technical problems.

[0004] A one-pedal dual-brake structure for a handcart includes a first wheel and a second wheel, a rotating shaft structure is provided between the first wheel and the second wheel, a pedal limiting structure that can limit its rotation is provided in the middle of the rotating shaft structure, the pedal limiting structure includes a brake pedal, a limiting block and a limiting collar, the limiting collar is sleeved on the middle of the rotating shaft structure and is fixedly connected to the rotating shaft structure, the outside of the limiting collar is provided with a plurality of equidistant limiting protrusions, the brake pedal can be rotatably sleeved on the outside of the limiting collar, and the middle part of the limiting block can be rotatably installed inside the brake pedal.

[0005] Preferably, the rotating shaft structure includes an inner shaft, both ends of the inner shaft are fixedly connected to a first wheel and a second wheel respectively. An outer first shaft and an outer second shaft are sleeved outside the inner shaft. One end of the outer first shaft is fixedly connected to the first wheel through a wheel adapter, and the other end is fixedly sleeved on a first outer shaft adapter. The first outer shaft adapter is fixedly sleeved on the inner shaft. One end of the outer second shaft is fixedly connected to the second wheel through a wheel adapter, and the other end is fixedly sleeved on a second outer shaft adapter. The second outer shaft adapter is fixedly sleeved on the inner shaft. The first outer shaft adapter and the second outer shaft adapter are arranged on both sides of the brake pedal.

[0006] Preferably, a first outer shaft mounting portion is provided on the first outer shaft adapter. One end of the outer first shaft is sleeved outside the first outer shaft mounting portion. One end of the first outer shaft adapter close to the brake pedal is provided with a pedal clamping portion.

[0007] Preferably, a second outer shaft mounting portion and a pedal sleeving portion are provided on the second outer shaft adapter. The end of the outer second shaft is sleeved outside the second outer shaft mounting portion. One side of the brake pedal is sleeved outside the pedal sleeving portion, and a part of the limit collar is clamped inside the pedal sleeving portion.

[0008] Preferably, the brake pedal is provided with a pedal collar portion. The brake pedal is sleeved outside the limit collar through the pedal collar portion. One side of the pedal collar portion extends outwards to form a pedal plate. On one side of the upper surface of the pedal plate, a push block mounting position is provided. Below the pedal plate, a block mounting position is provided. A block rotating shaft mounting hole is provided in the block mounting position. The limit block is rotatably mounted in the block mounting position through a block rotating shaft.

[0009] Preferably, an unlocking push block is provided in the push block mounting position.

[0010] Preferably, a torsion spring mounting position is provided at one end of the brake pedal. A return torsion spring is provided in the torsion spring mounting position. The return torsion spring is sleeved on the inner shaft and is located between the second outer shaft adapter and the brake pedal. The end of the return torsion spring close to the brake pedal is inserted into the brake pedal and can drive the brake pedal.

[0011] Preferably, the limit block is in a "7" - shaped configuration. A rotating shaft mounting hole is provided at its turning portion. The limit block is rotatably mounted in the block mounting position through a rotating shaft.

[0012] Preferably, both ends of the limit collar are provided with collar clamping portions. Collar limit grooves are provided on the collar clamping portions. The limit collar is fixedly sleeved on the inner shaft through the collar limit grooves by fixing members.

[0013] The one - step double - brake structure of the baby carriage of the present utility model has the following beneficial effects:

[0014] The utility model relates to a one-step double-brake structure for a baby carriage. When in use, the user steps on a plate with the foot, causing the pedal sleeve part to rotate by 45 degrees, so that the end part of the limit block just abuts against one of the limit convexes of the limit sleeve ring, thereby restricting the rotation of the limit sleeve ring, and further restricting the rotation of the inner shaft, so as to achieve the effect of simultaneously restricting the rotation of the first wheel and the second wheel, realizing the function of braking both wheels at the same time. When it is necessary to unlock the brake, step on the plate downward again, causing the pedal sleeve part to rotate by 45 degrees. At this time, the unlocking push block will push the limit sleeve ring forward, causing the limit block to rotate, and the restriction of the limit block on the limit sleeve ring can be released. In this way, the limit sleeve ring can be restored to be rotatable, and the first wheel and the second wheel can be driven by the inner shaft, realizing the function of one-step double-unlocking. In this way, the user can achieve double braking with one step and double unlocking with one step, which is convenient for the user to use. Brief Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the one-step double-brake structure for the baby carriage of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the one-step double-brake structure for the baby carriage of the utility model;

[0017] Figure 3 is Figure 2 The enlarged schematic diagram of part A in

[0018] Figure 4 It is a schematic diagram of the pedal limit structure of the one-step double-brake structure for the baby carriage of the utility model;

[0019] Figure 5 It is a schematic diagram of the limit sleeve ring structure of the one-step double-brake structure for the baby carriage of the utility model;

[0020] Reference numerals: 1, the first wheel; 2, the second wheel; 3, the rotating shaft structure; 301, the inner shaft; 302, the first outer shaft; 303, the second outer shaft; 304, the first outer shaft adapter; 3041, the first outer shaft installation part; 3042, the pedal clamping part; 305, the second outer shaft adapter; 3051, the second outer shaft installation part; 3052, the pedal sleeve part; 4, the pedal limit structure; 5, the brake pedal; 501, the pedal sleeve ring part; 502, the pedal plate; 503, the block installation position; 504, the block rotating shaft installation hole; 505, the push block installation position; 506, the torsion spring installation position; 6, the limit block; 7, the limit sleeve ring; 701, the limit convex; 702, the sleeve ring clamping part; 703, the sleeve ring limit groove; 8, the unlocking push block; 9, the return torsion spring; 10, the wheel adapter. Detailed Embodiment

[0021] To enable those skilled in the art to better understand the technical solution of the present utility model, the following further details the products of the present utility model in conjunction with embodiments and drawings.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element; when an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present utility model. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] As Figures 1 to 5 shown, a one-step double-brake structure for a trolley includes a first wheel 1, a second wheel 2, a rotating shaft structure 3 and a pedal limiting structure 4. The first wheel 1 is fixed to one end of the rotating shaft structure 3, and the second wheel 2 is fixed to the other end of the rotating shaft structure 3. The pedal limiting structure 4 is arranged in the middle of the rotating shaft structure 3.

[0025] As Figures 1 to 5 shown, the rotating shaft structure 3 includes an inner shaft 301. The two ends of the inner shaft 301 are respectively fixedly connected to the first wheel 1 and the second wheel 2. A first outer shaft 302 and a second outer shaft 303 are sleeved outside the inner shaft 301. One end of the first outer shaft 302 is fixedly connected to the first wheel 1 through a wheel adapter 10, and the other end is fixedly sleeved on a first outer shaft adapter 304. The first outer shaft adapter 304 is fixedly sleeved on the inner shaft 301. One end of the second outer shaft 303 is fixedly connected to the second wheel 2 through a wheel adapter 10, and the other end is fixedly sleeved on a second outer shaft adapter 305. The second outer shaft adapter 305 is fixedly sleeved on the inner shaft 301. The first outer shaft adapter 304 and the second outer shaft adapter 305 are arranged on both sides of the pedal limiting structure 4.

[0026] As Figure 2 and Figure 3As shown, a first outer shaft mounting portion 3041 is provided on the first outer shaft adapter 304. One end of the first outer shaft 302 is sleeved outside the first outer shaft mounting portion 3041. One end of the first outer shaft adapter 304 close to the brake pedal 5 is provided with a pedal clamping portion 3042. A second outer shaft mounting portion 3051 and a pedal sleeving portion 3052 are provided on the second outer shaft adapter 305. The end of the second outer shaft 303 is sleeved outside the second outer shaft mounting portion 3051. One side of the brake pedal 5 is sleeved outside the pedal sleeving portion 3052, and a part of the limit collar 7 is clamped inside the pedal sleeving portion 3052.

[0027] It should be noted that during installation, first install and fix the pedal limiting structure 4 in the middle of the inner shaft 301, and then sleeve the first outer shaft adapter 304 and the second outer shaft adapter 305 inside the inner shaft 301, so that the first outer shaft adapter 304 and the second outer shaft adapter 305 are respectively located on both sides of the pedal limiting structure 4. Then use screws to fix the first outer shaft adapter 304 and the second outer shaft adapter 305 to the inner shaft 301. Then sleeve the first outer shaft 302 and the second outer shaft 303 on both sides of the inner shaft 301 respectively, so that one end of the first outer shaft 302 is clamped outside the first outer shaft mounting portion 3041 of the first outer shaft adapter 304, and one end of the second outer shaft 303 is clamped outside the second outer shaft mounting portion 3051 of the second outer shaft adapter 305. Then fix the first wheel 1 and the second wheel 2 to both ends of the inner shaft 301 respectively. Use screws to fix the wheel adapter 10, the first outer shaft 302 and the inner shaft 301 of the first wheel 1, and use screws to fix the wheel adapter 10, the second outer shaft 303 and the inner shaft 301 of the second wheel 2, so that a part of the mounting portion of the wheel adapter 10 is located between the inner side of the first outer shaft 302 or the second outer shaft 303 and the outer side of the inner shaft 301. The wheel adapter 10 is pre-installed and fixed on the inner sides of the first wheel 1 and the second wheel 2, and the installation of the rotating shaft structure 3 can be completed.

[0028] As Figures 1 to 5 As shown, the pedal limiting structure 4 includes a brake pedal 5, a limit block 6 and a limit collar 7. The limit collar 7 is sleeved in the middle of the rotating shaft structure 3 and forms a fixed connection with the rotating shaft structure 3. A number of equally spaced limit convexes 701 are provided on the outside of the limit collar 7. The brake pedal 5 is rotatably sleeved outside the limit collar 7. The middle of the limit block 6 is rotatably installed inside the brake pedal 5.

[0029] As Figures 1 to 5As shown in the figure, the brake pedal 5 is provided with a pedal collar portion 501. The brake pedal 5 is sleeved outside the limit collar 7 through the pedal collar portion 501. One side of the pedal collar portion 501 extends outward to be provided with a pedal plate 502. On one side of the upper surface of the pedal plate 502, there is a push block installation position 505. Below the pedal plate 502, there is a block installation position 503. On the block installation position 503, there is a block rotating shaft installation hole 504. The limit block 6 is rotatably installed in the block installation position 503 through a block rotating shaft. The push block installation position 505 is internally provided with an unlocking push block 8. One end of the brake pedal 5 is provided with a torsion spring installation position 506. The torsion spring installation position 506 is internally provided with a return torsion spring 9. The return torsion spring 9 is sleeved on the inner shaft 301 and is located between the second outer shaft adapter 305 and the brake pedal 5. The end of the return torsion spring 9 close to the brake pedal 5 is inserted into the brake pedal 5 and can drive the brake pedal 5. The limit block 6 is in the shape of the word "limit collar 7", and a rotating shaft installation hole is provided at its turning portion. The limit block 6 is rotatably installed in the block installation position 503 through a rotating shaft. Both ends of the limit collar 7 are provided with collar clamping portions 702. The collar clamping portions 702 are provided with collar limit grooves 703. The limit collar 7 is fixedly sleeved on the inner shaft 301 through the collar limit grooves 703 by fixing parts.

[0030] It should be noted that during installation, the limit collar 7 is sleeved in the middle of the inner shaft 301, and the limit collar 7 and the inner shaft 301 are fixed by screws. Then, the limit block 6 is installed in the block installation position 503 of the brake pedal 5. Then, the rotating shaft is passed through the block rotating shaft installation hole 504 so that the limit block 6 can be rotatably installed in the block installation position 503. Then, the unlocking push block 8 is installed on the push block installation position 505 of the brake pedal 5. Then, the assembled brake pedal 5 is sleeved outside the limit block 6. Then, the return torsion spring 9 is installed and sleeved on the torsion spring installation position 506. Then, the second outer shaft adapter 305 is sleeved so that the return torsion spring 9 is located between the second outer shaft adapter 305 and the end of the limit collar 7. Then, the second outer shaft adapter 305 is installed on the other side of the end of the limit collar 7 so that the limit collar 7 is clamped between the first outer shaft adapter 304 and the second outer shaft adapter 305, and the installation of the pedal limit structure 4 can be completed.

[0031] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model; any ordinary technician in the industry can smoothly implement the present utility model according to what is shown in the accompanying drawings of the specification and the above description; however, any minor changes, modifications and equivalent variations made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are all equivalent embodiments of the present utility model; at the same time, any changes, modifications and equivalent variations made to the above embodiments based on the substantial technology of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A baby stroller with a one-step double brake structure, comprising a first wheel (1) and a second wheel (2), wherein a rotating shaft structure (3) is provided between the first wheel (1) and the second wheel (2), and characterized in that: In the middle of the rotating shaft structure (3), there is a pedal limit structure (4) that can limit its rotation. The pedal limit structure (4) includes a brake pedal (5), a limit block (6), and a limit collar (7). The limit collar (7) is sleeved on the middle of the rotating shaft structure (3) and is fixedly connected to the rotating shaft structure (3). A number of equally spaced limit convexes (701) are provided on the outside of the limit collar (7). The brake pedal (5) is rotatably sleeved on the outside of the limit collar (7), and the middle of the limit block (6) is rotatably installed inside the brake pedal (5).

2. The one-step double-brake structure for a baby carriage according to claim 1, characterized in that: The rotating shaft structure (3) includes an inner shaft (301). The two ends of the inner shaft (301) are respectively fixedly connected to the first wheel (1) and the second wheel (2). The outside of the inner shaft (301) is sleeved with a first outer shaft (302) and a second outer shaft (303). One end of the first outer shaft (302) is fixedly connected to the first wheel (1) through a wheel adapter (10), and the other end is fixedly sleeved on the first outer shaft adapter (304). The first outer shaft adapter (304) is fixedly sleeved on the inner shaft (301). One end of the second outer shaft (303) is fixedly connected to the second wheel (2) through a wheel adapter (10), and the other end is fixedly sleeved on the second outer shaft adapter (305). The second outer shaft adapter (305) is fixedly sleeved on the inner shaft (301). The first outer shaft adapter (304) and the second outer shaft adapter (305) are arranged on both sides of the brake pedal (5).

3. The one-step double-brake structure for a baby carriage according to claim 2, characterized in that: The first outer shaft adapter (304) is provided with a first outer shaft mounting portion (3041). One end of the first outer shaft (302) is sleeved on the outside of the first outer shaft mounting portion (3041). One end of the first outer shaft adapter (304) close to the brake pedal (5) is provided with a pedal clamping portion (3042).

4. The one-step double-brake structure for a baby carriage according to claim 3, wherein: The second outer shaft adapter (305) is provided with a second outer shaft mounting portion (3051) and a pedal sleeving portion (3052). The end of the second outer shaft (303) is sleeved on the outside of the second outer shaft mounting portion (3051). One side of the brake pedal (5) is sleeved on the outside of the pedal sleeving portion (3052), and a part of the limit collar (7) is clamped inside the pedal sleeving portion (3052).

5. The one-step dual-brake structure for a baby stroller according to claim 4, characterized in that: The brake pedal (5) is provided with a pedal collar portion (501). The brake pedal (5) is sleeved on the outside of the limit collar (7) through the pedal collar portion (501). One side of the pedal collar portion (501) extends outward to form a pedal plate (502). On one side of the upper surface of the pedal plate (502), there is a push block mounting position (505). Below the pedal plate (502), there is a block mounting position (503). A block rotating shaft mounting hole (504) is provided in the block mounting position (503). The limit block (6) is rotatably installed in the block mounting position (503) through a block rotating shaft.

6. The one-step double-brake structure for a baby carriage according to claim 5, wherein: An unlocking push block (8) is arranged in the push block mounting position (505).

7. The one-step double-brake structure for a baby carriage according to claim 6, wherein: One end of the brake pedal (5) is provided with a torsion spring mounting position (506). A return torsion spring (9) is arranged in the torsion spring mounting position (506). The return torsion spring (9) is sleeved on the inner shaft (301) and is located between the second outer shaft adapter (305) and the brake pedal (5). The end of the return torsion spring (9) close to the brake pedal (5) is inserted into the brake pedal (5) and can drive the brake pedal (5).

8. The one-step double-brake structure for a baby carriage according to claim 7, characterized in that: The limit block (6) is in a "7" shape, and a rotating shaft mounting hole is provided at its turning part. The limit block (6) is rotatably mounted in the block mounting position (503) through a rotating shaft.

9. The one-step double-brake structure for a baby carriage according to claim 8, characterized in that: Both ends of the limit collar (7) are provided with collar clamping parts (702). Collar limiting grooves (703) are provided on the collar clamping parts (702). The limit collar (7) is fixedly sleeved on the inner shaft (301) through the collar limiting grooves (703) by fixing parts.

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