CN111483506A - Braking mechanism of baby carriage and baby carriage - Google Patents

Abstract

The invention discloses a braking mechanism of a baby carriage and a baby carriage. The baby carriage includes a frame and a wheel assembly, the wheel assembly includes a wheel seat for connecting with the frame, and a wheel rotatably mounted on the wheel seat, and the braking mechanism includes a fixed The brake disc arranged on the wheel, the brake assembly arranged on the wheel base, the brake assembly at least includes a brake pad, the brake pad is an annular member with two ends and its own elasticity, and the brake pad ring is arranged on the On the outer side of the brake disc in the circumferential direction, between the brake pad and the wheel base, a limit structure for limiting the brake pad in the circumferential direction is also arranged. When the brake mechanism is in the braking state, the brake pad Deformation, and the brake pads are tightly held on the outer periphery of the brake disc; when the brake mechanism is in the release state, the brake pads are separated from the brake disc. The braking mechanism is simple in structure and convenient in operation, and can quickly realize braking to achieve the purpose of parking.

Description

Braking mechanism of baby carriage and baby carriage

technical field

The invention relates to a braking mechanism of a baby carriage and a baby carriage.

Background technique

The stroller provides greater convenience for people to carry small children for outdoor activities. In order to eliminate the safety hazard when the stroller is parked, a braking mechanism is generally provided on the stroller. In the prior art, the brake mechanism on the stroller usually includes a brake lever and a brake disc with a plurality of brake grooves. The braking can be realized when the brake lever is driven into the brake groove by the driving mechanism, and the brake lever can be driven out of the brake groove. Braking can be achieved. However, most of the current brake mechanisms have a large number of lever components, the structure is relatively complex, and the brake operation is not very convenient.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a brake mechanism for a stroller with a simple structure and convenient operation.

In order to achieve the above object, the technical solution adopted in the present invention is: a braking mechanism for a baby carriage, the baby carriage includes a frame and a wheel assembly arranged at the bottom of the frame, and the wheel assembly includes a wheel assembly for connecting with the frame. A connected wheel base, and a wheel rotatably mounted on the wheel base through a wheel axle, the brake mechanism includes a brake disc fixedly arranged on the wheel, a brake assembly arranged on the wheel base, the The brake assembly at least includes a brake pad, wherein the brake pad is a ring-shaped member with two ends and its own elasticity, the brake pad ring is arranged on the outer circumferential side of the brake disc, and the brake pad is connected to the A limit structure for limiting the brake pads in the circumferential direction is also arranged between the wheel bases. When the brake mechanism is in the braking state, the two ends of the brake pads move simultaneously to make all the brake pads move. The brake pads are deformed, and the brake pads are held tightly on the outer peripheral portion of the brake disc; when the brake mechanism is in a brake release state, the brake pads are separated from the brake disc.

Preferably, the brake pad includes an open ring portion arranged around the outer circumferential side of the brake disc, and a connecting end portion extending outward from both ends of the open ring portion, the open ring portion is connected to the two The connecting end is an integral member formed from the same material.

Further, the brake assembly also includes a friction pad fixedly arranged on the inner side of the brake pad, when the braking mechanism is in a braking state, the friction pad is in contact with the outer peripheral surface of the brake disc. .

Furthermore, the friction plate is detachably mounted on the inner side surface of the split ring portion.

Further, when the brake mechanism is switched from the unbraking state to the braking state, the two connecting ends of the brake pads are close to each other, so that the brake pads are deformed, and the opening of the split ring portion is reduced, The brake mechanism further includes a brake driving member for driving the two connecting ends of the brake pads to approach each other.

Preferably, the brake pads are made of spring steel.

Preferably, the limit structure includes a plurality of limit parts arranged on the brake pads at intervals in the circumferential direction, and a plurality of matching parts arranged on the wheel base to cooperate with the limit parts, and the The limiting portion corresponds to the matching portion one-to-one, and the limiting portion and the matching portion cooperate with each other to limit the displacement of the brake pad along the radial direction of the brake disc.

Further, the limiting portion is a limiting pin fixedly arranged on the brake pad, the matching portion is a limiting groove opened on the wheel base, and the limiting pin can slide relatively in the axial direction. And/or relatively rotatably penetrated in the limiting groove.

An object of the present invention is to provide a baby carriage having the above-mentioned braking mechanism.

In order to achieve the above object, the technical solution adopted in the present invention is: a baby carriage, comprising a frame and a wheel assembly arranged at the bottom of the frame, and the above-mentioned braking mechanism is arranged between the wheel assembly and the frame.

Preferably, the wheel assembly includes two groups of rear wheel assemblies respectively arranged on the left and right sides of the bottom rear of the frame, and the braking mechanism is provided between the two groups of the rear wheel assemblies and the frame, Each group of the brake mechanisms further includes a brake wire that can drive the two ends of the brake pad to be relatively close to each other when tensioned, and the frame is provided with a brake wire for driving the brake wires on both sides to be synchronously tensioned brake lever.

Due to the application of the above-mentioned technical solutions, the present invention has the following advantages compared with the prior art: the braking mechanism of the stroller of the present invention can achieve the purpose of braking and parking by driving the two ends of the brake pads to be relatively close, and The position limitation of the brake pad is realized by the limiting structure, so that the brake pad overcomes the problem of shaking and displacement relative to the wheel base in the prior art, and the structure is simple and the operation is convenient.

Description of drawings

Accompanying drawing 1 is the perspective view of the baby carriage of a specific embodiment of the present invention;

Accompanying drawing 2 is the schematic diagram of the stroller of accompanying drawing 1 after removing the wheel;

Accompanying drawing 3 is the structural representation of brake assembly;

Accompanying drawing 4 is the front view of wheel seat;

Accompanying drawing 5 is the three-dimensional schematic diagram of wheel seat;

Accompanying drawing 6 is the three-dimensional schematic diagram of the wheel that is installed with brake disc;

Accompanying drawing 7 is the structure exploded view of accompanying drawing 6;

Fig. 8 is the top view of the stroller of Fig. 1, wherein the brake mechanism is in the release brake state;

Accompanying drawing 9 is the schematic cross-sectional view along A-A direction in accompanying drawing 8;

Accompanying drawing 10 is the enlarged schematic diagram of M place in accompanying drawing 9;

Fig. 11 is a top view of the stroller of Fig. 1, wherein the braking mechanism is in a braking state;

Figure 12 is a schematic cross-sectional view along the direction B-B in Figure 11;

Figure 13 is an enlarged schematic view of N in Figure 12;

Among them: 100, frame; 200, rear wheel assembly; 300, front wheel assembly;

1. Wheel seat; 11. Limit groove; 2. Brake assembly; 21. Brake pad; 21a, split ring; 21b, connecting end; 22, friction plate; 23, limit pin; 3, brake disc; 4 , wheels; 5, brake lines; 6, brake levers; 7, axles.

Detailed ways

The technical solutions of the present invention will be further elaborated below with reference to the accompanying drawings and specific embodiments.

Referring to the stroller shown in FIGS. 1 to 13 , it includes a frame 100 and a wheel assembly disposed at the bottom of the frame 100 , the wheel assembly includes two sets of rear wheel assemblies 200 disposed on the left and right sides of the bottom rear of the frame 100 , and a front wheel assembly 300 disposed at the bottom and front of the frame 100 , wherein a braking mechanism is provided between the rear wheel assemblies 200 on both sides and the frame 100 .

Referring to the drawings, the rear wheel assembly 200 includes a wheel base 1 for fixedly connecting with the vehicle frame 100 , and a wheel 4 rotatably mounted on the wheel base 1 through an axle 7 . The brake mechanism includes a brake disc 3 fixedly arranged on the wheel 4, and a brake assembly 2 arranged on the wheel base 1. The brake assembly 2 at least includes a brake pad 21, wherein the brake pad 21 is an annular shape with two ends. As a component, the brake pads 21 are annularly arranged on the outer side of the brake disc 3 in the circumferential direction. A limiting structure for limiting the position of the brake pad 21 in the circumferential direction is also provided between the brake pad 21 and the wheel base 1 . When the brake mechanism is in the release state, the brake pads 21 are separated from the brake disc 3 and the wheels 4 can rotate freely; when the brake mechanism is in the brake state, the brake pads 21 are deformed, and the brake pads 21 are tightly held on the outer periphery of the brake disc 3 , so as to achieve rapid braking, so that the stroller can be stopped quickly to achieve the purpose of parking.

Specifically, as shown in FIG. 3 , FIG. 10 and FIG. 13 , the brake pad 21 is an integral component with its own elasticity, which is preferably made of spring steel. When the braking mechanism is switched from the release state to the braking state, the two ends of the brake pads 21 are close to each other, so that the brake pads 21 are deformed, so that the brake pads 21 are tightly held on the brake disc 3 .

The brake assembly 2 also includes a friction plate 22 that is fixedly arranged on the inner side of the brake pad 21. The friction plate 22 is preferably made of rubber material. When the braking mechanism brakes, the friction plate 22 is in contact with the outer periphery of the brake disc 3. The brake is realized on the surface, and the friction plate 22 can be replaced after wear.

In this embodiment, as shown in FIG. 3 , the brake pad 21 includes an open ring portion 21 a that is arranged around the outer circumferential side of the brake disc 3 , and a connecting end portion 21 b that is bent and extended outward from both ends of the open ring portion 21 a respectively. , the split ring portion 21a and the two connecting end portions 21b are integral components formed of the same material (here, spring steel), and the friction plate 22 is detachably mounted on the inner side of the split ring portion 21a. The opening angle of the split ring portion 21a is preferably not more than 150°. When the two connecting end portions 21b are driven relatively close, the opening of the split ring portion 21a is gradually reduced, and the brake pads 21 are deformed to hug the brake disc 3 to achieve braking.

The brake mechanism further includes a brake driving member for driving the two connecting ends 21b of the brake pad 21 to approach each other. Here, as shown in FIGS. 8 to 13 , the brake driver includes a brake wire 5 disposed between the two connecting ends 21 b , and a brake lever 6 for tensioning the brake wire 5 is also provided on the frame 100 , by operating the brake lever 6, the brake wire 5 can be tensioned to drive the two connecting ends 21b to be relatively close to realize braking.

Referring to the drawings, the limit structure includes a plurality of limit parts arranged on the brake pad 21 at intervals in the circumferential direction, a plurality of matching parts arranged on the wheel base 1 and matched with the limit parts, and the limit part Corresponding one-to-one with the matching portions, the limiting portion and the matching portion limit the displacement of the brake pads 21 along the radial direction of the brake disc 3 when they cooperate with each other. In this embodiment, the limiting portion is a limiting pin 23 that is fixedly arranged on the brake pad 21 . The limiting pin 23 is specifically arranged on the open ring portion 21 a of the brake pad 21 and extends along the radial direction of the split ring portion 21 a , the matching portion is the limiting slot 11 opened on the wheel base 1 , and the limiting pin 23 can be relatively slidable and/or rotatably inserted in the limiting slot 11 along the axial direction. Here, the limit pins 23 have three groups spaced along the extending direction of the length of the brake pad 21 , and correspondingly, the limit grooves 11 on the wheel base 1 are also provided with three groups. Regardless of whether the braking mechanism is in the braking state or the releasing state, the limiting groove 11 of the limiting structure and the limiting pin 23 are kept in cooperation. In this embodiment, the wheel base 1 has a disc-shaped base and an annular baffle extending toward one side in the circumferential direction of the base, and all the limiting grooves 11 are opened on the annular baffle. An accommodation space is formed between the base and the annular baffle, and the brake disc 3 is accommodated in the accommodation space.

Referring to FIG. 10 , the brake mechanism is in the release state, the inner side of the friction plate 22 in the brake assembly 2 is spaced from the brake disc 3 , the wheel 4 and the brake disc 3 can rotate relative to the frame 100 , that is, the stroller can run normally . When the brake lever 6 is operated to tension the brake wire 5, as shown in FIG. 13, the two connecting ends 21b of the brake pad 21 in the brake assembly 2 are relatively close, so that the opening of the split ring portion 21a gradually decreases, and the split ring The diameter of the portion 21a is reduced, so that the inner friction plate 22 gradually touches the outer peripheral portion of the brake disc 3, and finally the brake assembly 2 hugs the brake disc 3 from the circumferential direction, so that the brake disc 3 together with the wheel 4 cannot continue. Rotate, the stroller stops quickly to achieve the purpose of parking. When there is no need to continue braking, the operator releases the brake lever 6 and the brake wire 5 is released. Under the action of the elastic force of the brake pad 21 and the limit action of the limit pin 23 and the limit groove 11, the brake pad 21 Return to the original state, the brake assembly 2 is separated from the brake disc 3, and the brake is released.

To sum up, the braking mechanism of the present invention has a simple structure and convenient operation, and can quickly realize braking to achieve the purpose of parking.

The above-mentioned embodiments are only intended to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly, and cannot limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. A braking mechanism for a baby carriage, the baby carriage comprising a frame and a wheel assembly provided at the bottom of the frame, the wheel assembly comprising a wheel seat for connecting with the frame, and rotatably installed through a wheel axle The wheel on the wheel base is characterized in that: the braking mechanism includes a brake disc fixedly arranged on the wheel, a brake assembly arranged on the wheel base, and the brake assembly at least includes a brake pad, Wherein, the brake pad is a ring-shaped member with two ends and its own elasticity, the brake pad ring is arranged on the outer circumferential side of the brake disc, and there is also a function between the brake pad and the wheel base For the limit structure for limiting the brake pad in the circumferential direction, when the brake mechanism is in the braking state, the two ends of the brake pad move at the same time to deform the brake pad. The brake pads are tightly held on the outer peripheral portion of the brake disc; when the brake mechanism is in the release state, the brake pads are separated from the brake disc. 2 . The brake mechanism of the baby carriage according to claim 1 , wherein the brake pad comprises an open ring portion arranged around the outer circumferential side of the brake disc, and two ends of the open ring portion are respectively directed to the outer side of the open ring portion. For the connecting end portion extending outward, the open ring portion and the two connecting end portions are integral components formed from the same material. 3. The brake mechanism of the baby carriage according to claim 2, wherein the brake assembly further comprises a friction pad fixedly arranged on the inner side of the brake pad, when the brake mechanism is in a braking state, the The friction sheet is in contact with the outer peripheral surface of the brake disc. 4 . The brake mechanism of the baby carriage according to claim 3 , wherein the friction plate is detachably mounted on the inner side surface of the open ring portion. 5 . 5 . The braking mechanism of the stroller according to claim 2 , wherein when the braking mechanism is switched from the unbraking state to the braking state, the two connecting ends of the brake pads are close to each other so that all the The brake pad is deformed, the opening of the split ring portion is reduced, and the brake mechanism further includes a brake driving member for driving the two connecting ends of the brake pad to approach each other. 6 . The brake mechanism of the baby carriage according to claim 1 , wherein the brake pads are made of spring steel. 7 . 7 . The braking mechanism of the stroller according to claim 1 , wherein the limiting structure comprises a plurality of limiting portions arranged on the brake pads at intervals in the circumferential direction, and a plurality of limiting portions arranged on the wheel seat. 8 . a plurality of matching parts matched with the limit parts, the limit parts and the matching parts are in one-to-one correspondence, and the limit parts and the matching parts cooperate with each other to limit the brake pads along the brake disc displacement in the radial direction. 8 . The braking mechanism of the baby carriage according to claim 7 , wherein the limiting portion is a limiting pin fixedly arranged on the brake pad, and the matching portion is a locking pin provided on the wheel seat. 9 . A limit slot, the limit pin can be relatively slidable and/or relatively rotatable in the axial direction and pass through the limit slot. 9. A baby carriage, comprising a frame and a wheel assembly disposed at the bottom of the frame, wherein a brake according to any one of claims 1 to 8 is arranged between the wheel assembly and the frame mechanism. 10 . The stroller according to claim 9 , wherein the wheel assembly comprises two groups of rear wheel assemblies respectively disposed on the left and right sides of the bottom rear of the frame, and the two groups of the rear wheel assemblies are connected to the vehicle. 11 . The brake mechanism is provided between the frames, and each group of the brake mechanism also includes a brake wire that can drive the two ends of the brake pads to be relatively close to each other when tensioned. The brake lever is used to drive the brake lines on both sides to be tensioned synchronously.

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