A brake mechanism for a child's pushchair

Abstract

The application discloses a child stroller brake mechanism and belongs to the brake system field.The brake mechanism comprises a C-shaped frame, two wheel shafts welded and fixed on the frame, wheels rotatably installed on the end of the wheel shaft through a bearing seat, and a brake system arranged on the frame.The brake system comprises a first friction plate fixedly installed on one of the wheels, a friction deceleration mechanism matched with the first friction plate arranged on the wheel shaft, a pulling rod hinged on the outer side wall of the friction deceleration mechanism, two installation rods with different ground clearance fixedly installed on one end of the frame close to the pulling rod, and positioning parts fixedly sleeved on the two installation rods and detachably hinged with the pulling rod.The brake mechanism has the advantages that the pulling rod is installed on the installation rods with different heights, the height of the pulling rod is changed, the adaptability of the equipment is improved, and the brake mechanism is suitable for use of different people.

Description

Technical Field

[0001] This application relates to the field of braking system technology, specifically a brake mechanism for a child stroller. Background Technology

[0002] Strollers are a common tool for infants and toddlers when going out, and their safety performance is of paramount importance. The braking mechanism is one of the key safety components of a stroller, used to secure the stroller when stopped on ramps or flat ground to prevent it from accidentally sliding.

[0003] Existing stroller braking mechanisms mostly use caliper-type structures that act on the wheel hub. While this structure is effective, its position is relatively fixed, and braking can usually only be achieved by foot braking. It cannot provide an effective way for different users to manually operate the caliper-type structure to slow down the wheels, thus limiting its application.

[0004] Therefore, this application provides a stroller braking mechanism to solve the above problems. Utility Model Content

[0005] This application provides a stroller braking mechanism, which aims to solve the problems mentioned in the background art, such as the limitation that existing stroller deceleration braking mechanisms can only use foot brakes.

[0006] To achieve the above objectives, this application provides the following technical solution: a stroller braking mechanism, comprising a C-shaped frame, two axles welded and fixed to the frame, wheels rotatably mounted on the ends of the axles via bearing seats, and a braking system mounted on the frame. The braking system includes a first friction pad fixedly mounted on one of the wheels. A friction deceleration mechanism adapted to the first friction pad is mounted on the axle. A lever is hinged to the outer wall of the friction deceleration mechanism. Two mounting rods at different ground heights are fixedly mounted on the frame near the lever. Each mounting rod has a positioning part fixedly fitted onto it, and the positioning part is detachably hinged to the lever. In use, depending on whether manual braking or foot braking is required, the lever is mounted on the mounting rods at different heights. The positioning part connects the lever to the mounting rods. Pushing the lever away from the first friction pad moves the hinged friction deceleration mechanism towards the first friction pad, thereby pressing the first friction pad to complete deceleration and braking. This improves the adaptability of the equipment and makes it suitable for different users.

[0007] Preferably, for convenient braking, the friction deceleration mechanism includes a sleeve slidably sleeved on the wheel axle and positioned near the first friction plate. A second friction plate adapted to the first friction plate is fixedly installed on one end of the sleeve near the first friction plate, thereby achieving deceleration and braking effect through friction, which is convenient and quick.

[0008] Preferably, in order to ensure driving stability, a storage groove is provided on one end of the sleeve near the second friction plate. A return spring sleeved on the wheel axle is inserted into the storage groove. The two ends of the return spring abut against the outer walls of the sleeve and the first friction plate, respectively, so that the sleeve is always detached from the first friction plate during normal driving, thus ensuring driving stability.

[0009] Preferably, to ensure convenient actuation, the lever includes a support fixedly connected to the sleeve, a connecting block hinged to the support, a long rod fixedly installed at the end of the connecting block away from the support, a lever fixedly installed at the end of the long rod away from the support, and a positioning hole provided on the long rod for convenience and speed.

[0010] Preferably, to ensure stability and reliability during replacement, the positioning part includes a positioning ring fixedly mounted on the mounting rod, a positioning screw adapted to the positioning hole fixedly mounted on the positioning ring, the long rod being sleeved on the positioning screw through the positioning hole, the long rod being rotatably connected to the positioning screw, and a nut being screwed onto the positioning screw to ensure stable rotation of the long rod on the positioning screw and prevent it from coming off.

[0011] This braking mechanism, depending on the need for manual braking or foot braking, mounts the lever on mounting rods at different heights. By changing the height of the lever, the lever is connected to the mounting rod via a positioning part. Then, the lever is pushed away from the first friction plate, causing the hinged friction deceleration mechanism to move towards the first friction plate, thereby pressing the first friction plate to complete deceleration and braking. This improves the adaptability of the equipment and makes it suitable for use by different people.

[0012] The braking mechanism features a factory-calibrated structure where the fixed positions of the positioning rings on the two mounting rods and the orientation angle of the positioning screws are pre-set. This means that the angles are matched to the long rods to ensure stable installation and rotation. After rotating the long rods on the wheel axle via the sleeves, they are adjusted to different mounting rods. Then, the positioning holes on the long rods are aligned with the positioning screws and inserted. Finally, the long rods are screwed onto the positioning screws with nuts to secure them, ensuring stable rotation of the long rods on the positioning screws and preventing them from coming off. Attached Figure Description

[0013] Figure 1 A schematic diagram of the foot brake mode of a child stroller braking mechanism; Figure 2 A schematic diagram of the handbrake mode structure of a child stroller braking mechanism; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional schematic diagram of a child stroller braking mechanism.

[0014] In the picture: 1. Frame; 2. Axle; 3. Wheel; 4. Braking system; 41. First friction plate; 42. Friction reduction mechanism; 421. Sleeve; 422. Second friction plate; 423. Storage groove; 424. Return spring; 43. Actuating rod; 431. Support; 432. Connecting block; 433. Long rod; 434. Paddle; 435. Positioning hole; 44. Mounting rod; 45. Positioning part; 451. Positioning ring; 452. Positioning screw; 453. Nut. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] Example 1 This embodiment provides a braking mechanism for a child stroller, such as... Figure 1-4 As shown, the braking mechanism includes a C-shaped frame 1, two axles 2 welded and fixed to the frame 1, wheels 3 rotatably mounted on the ends of the axles 2 via bearing seats, and a braking system 4 mounted on the frame 1. The braking system 4 includes a first friction plate 41 fixedly installed on one of the wheels 3. A friction reduction mechanism 42 adapted to the first friction plate 41 is provided on the axle 2. A lever 43 is hinged to the outer wall of the friction reduction mechanism 42. Two mounting rods 44 with different ground heights are fixedly installed on the frame 1 near the end of the lever 43. A positioning part 45 is fixedly sleeved on each of the two mounting rods 44. The positioning part 45 is detachably hinged to the lever 43.

[0017] In use, depending on the need for manual braking or foot braking, the lever 43 is installed on the mounting rod 44 at different heights. By changing the height of the lever 43, the lever 43 is connected to the mounting rod 44 through the positioning part 45. Then, the lever 43 is pushed to the side away from the first friction plate 41, which drives the hinged friction deceleration mechanism 42 to move towards the first friction plate 41, thereby pressing the first friction plate 41 to complete deceleration and braking, improving the adaptability of the equipment and making it suitable for use by different people.

[0018] Specifically, the friction reduction mechanism 42 includes a sleeve 421 that is slidably sleeved on the axle 2 and located near the first friction plate 41. A second friction plate 422 that is adapted to the first friction plate 41 is fixedly installed on one end of the sleeve 421 near the first friction plate 41.

[0019] In use, the sleeve 421 slides on the wheel axle 2. When it gets close to the first friction plate 41, the second friction plate 422 comes into contact with the first friction plate 41. The friction achieves the deceleration and braking effect. When the sleeve 421 slides away from the first friction plate 41 on the wheel axle 2 with the second friction plate 422, the first friction plate 41 loses frictional resistance and can drive normally, which is convenient and quick.

[0020] More specifically, a storage groove 423 is provided on one end of the sleeve 421 near the second friction plate 422. A return spring 424 sleeved on the wheel axle 2 is inserted into the storage groove 423. The two ends of the return spring 424 abut against the outer walls of the sleeve 421 and the first friction plate 41, respectively.

[0021] When in use, when it is necessary to disengage from the sleeve 421, simply release the lever 43. The return spring 424 will automatically rebound and abut against the sleeve 421, causing the sleeve 421 to disengage automatically. Due to the elasticity of the return spring 424, the sleeve 421 can always be disengaged from the first friction plate 41 during normal driving, ensuring driving stability.

[0022] Furthermore, the actuating lever 43 includes a support 431 fixedly connected to the sleeve 421, a connecting block 432 hinged to the support 431, a long rod 433 fixedly installed at the end of the connecting block 432 away from the support 431, a lever 434 fixedly installed at the end of the long rod 433 away from the support 431, and a positioning hole 435 is provided on the long rod 433.

[0023] In use, the long rod 433 is moved by pushing the lever 434, thereby pushing the sleeve 421 through the hinge of the connecting block 432 and the support 431, which is convenient and quick.

[0024] Furthermore, the positioning part 45 includes a positioning ring 451 fixedly installed on the mounting rod 44. A positioning screw 452 adapted to the positioning hole 435 is fixedly installed on the positioning ring 451. A long rod 433 is sleeved on the positioning screw 452 through the positioning hole 435. The long rod 433 and the positioning screw 452 are rotatably connected. A nut 453 is screwed onto the positioning screw 452.

[0025] It should be noted that the fixed positions of the positioning rings 451 on the two mounting rods 44 and the orientation angle of the positioning screws 452 are fixed and adjusted at the factory. That is, the angle is adapted to the long rod 433 to ensure its installation and rotation stability. After the long rod 433 is rotated on the wheel axle 2 through the sleeve 421, it is adjusted to different mounting rods 44. Then, the positioning hole 435 on the long rod 433 is aligned with the positioning screw 452 and inserted. Then, the nut 453 is screwed onto the positioning screw 452 to complete the fixation of the long rod 433, ensuring that the long rod 433 rotates stably on the positioning screw 452 and preventing it from coming off.

[0026] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A stroller braking mechanism, comprising a C-shaped frame (1), two axles (2) welded and fixed to the frame (1), wheels (3) rotatably mounted on the ends of the axles (2) via bearing seats, and a braking system (4) mounted on the frame (1), characterized in that: The braking system (4) includes a first friction plate (41) fixedly installed on one of the wheels (3). A friction deceleration mechanism (42) adapted to the first friction plate (41) is provided on the axle (2). A lever (43) is hinged on the outer wall of the friction deceleration mechanism (42). Two mounting rods (44) with different ground heights are fixedly installed on one end of the frame (1) near the lever (43). A positioning part (45) is fixedly sleeved on both mounting rods (44). The positioning part (45) is detachably hinged to the lever (43).

2. A child's vehicle brake mechanism according to claim 1 wherein: The friction reduction mechanism (42) includes a sleeve (421) that is slidably sleeved on the axle (2) and located near the first friction plate (41). A second friction plate (422) that is adapted to the first friction plate (41) is fixedly installed on one end of the sleeve (421) near the first friction plate (41).

3. A child's vehicle brake mechanism according to claim 2 wherein: A storage groove (423) is provided on one end of the sleeve (421) near the second friction plate (422). A return spring (424) sleeved on the wheel axle (2) is inserted into the storage groove (423). The two ends of the return spring (424) abut against the outer walls of the sleeve (421) and the first friction plate (41), respectively.

4. A child's vehicle brake mechanism according to claim 2 wherein: The actuating lever (43) includes a support (431) fixedly connected to the sleeve (421), a connecting block (432) hinged to the support (431), a long rod (433) fixedly installed at one end of the connecting block (432) away from the support (431), a lever (434) fixedly installed at one end of the long rod (433) away from the support (431), and a positioning hole (435) is provided on the long rod (433).

5. A child's vehicle brake mechanism according to claim 4 wherein: The positioning part (45) includes a positioning ring (451) fixedly installed on the mounting rod (44). A positioning screw (452) adapted to the positioning hole (435) is fixedly installed on the positioning ring (451). The long rod (433) is sleeved on the positioning screw (452) through the positioning hole (435). The long rod (433) and the positioning screw (452) are rotatably connected. A nut (453) is screwed onto the positioning screw (452).

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