CN201258004Y - Baby carriage braking structure - Google Patents

Abstract

The utility model discloses a brake structure for a stroller, which comprises a brake hole and a brake column. The wheel joint is rotatably provided with an operating part and a pressure piece. The protrusions in the brake hole form a recess between two adjacent protrusions for accommodating the brake column and separating it from the brake hole. The pressing part is equipped with a ratchet, and the operating part is equipped with a ratchet for inserting between the ratchet teeth. The pawl used to push the ratchet to rotate in one direction. The operating part rotates downward, the ratchet pushes the ratchet to rotate, and the rotation of the ratchet drives the rotation of the pressure piece. When the pressure piece rotates to the position where the convex part or the concave part faces the brake column, the convex part can press against the brake column to make it The brake column is inserted into the brake hole, or the brake column enters the concave part to separate from the brake hole, and the brake and brake release operations can be realized by turning the operating part downward, which is convenient and simple to operate.

Description

Baby carriage brake structure

technical field

The utility model relates to a brake structure of a baby carriage.

Background technique

The brake structure of the baby carriage in the prior art includes a brake disc installed on the wheel of the baby carriage, a brake hole provided on the brake disc, a chute provided on the wheel joint, and a chute slidably arranged in the chute for insertion into the brake hole. The brake column is equipped with an operating part on the wheel joint. One side of the operating part has a convex part and a concave part that is smooth and adjacent to the convex part. When the foot is pressed down to rotate the operating part, when the convex part touches the brake column and then pushes the brake When the column is inserted into the brake hole, the brake is realized, and the foot is hooked upward to rotate the operating part. When the convex part is separated from the brake column, under the action of the elastic restoring force between the brake column and the wheel joint, the brake column enters the concave part, and the brake column and the brake column The holes are separated to realize the release of the brake. The braking and release operations of the existing brake structure are completed by the operation in the opposite direction. It is easy to cause inconvenient operation when the brake is released by the operating part.

Contents of the invention

The purpose of this utility model is to provide a brake structure for baby carriages, in which the brake and brake release operations are completed through operations in the same direction.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a brake structure of a stroller, including a brake disc installed on the wheel of the stroller, a brake hole opened on the brake disc, and a sliding hole set on the wheel joint. Slots, brake columns slidably arranged in the chute for inserting into the brake holes, the wheel joints are rotatably provided with operating parts, and the wheel joints are also rotatably provided with press pieces, the press There are a plurality of protrusions arranged in a ring at intervals and used to push the brake column to be inserted into the brake hole on the piece, and a concave part is formed between two adjacent protrusions to accommodate the brake column so that it is separated from the brake hole , between the brake column and the wheel joint, there is a first elastic member for providing an elastic restoring force of the brake column to separate it from the brake hole, a ratchet is mounted on the pressing member, and the operation There is a pawl inserted between the teeth of the ratchet to push the ratchet to rotate in one direction, and there is a device between the operating part and the wheel joint to provide an elastic restoring force of the operating part to drive the pawl along the The second elastic member that slides on the tooth back of the ratchet.

The stop pawl inserted between the teeth of the ratchet to prevent the ratchet from rotating in the opposite direction is installed on the wheel joint.

There are two ratchets, which are installed on both sides of the pressing piece respectively. The ratchet is inserted between the teeth of one ratchet, and the stop pawl is inserted between the teeth of the other ratchet.

The wheel joint is provided with a stopper for preventing excessive rotation of the operating member.

Because the utility model adopts the above technical scheme, its advantage is: operate the operating part, overcome the elastic force of the second elastic part, the operating part rotates downward, the ratchet pushes the ratchet to rotate, and the rotation of the ratchet drives the rotation of the pressing part. When the pressing part rotates to the position where the raised part faces the brake column, the elastic force of the first elastic part is overcome, the raised part presses against the brake column, and the brake column is pushed into the brake hole. At this time, the brake column is in the braking state ; Loosen the operating part, under the action of the elastic restoring force of the second elastic part, the operating part returns to its original position. When the pressure piece rotates to the position where the concave part faces the brake column, under the elastic restoring force of the first elastic part, the brake column returns to the concave part, so that the brake column is separated from the brake hole. At this time, the brake column In the state of releasing the brake, release the operating part, and under the action of the elastic restoring force of the second elastic part, the operating part returns to its original position. Convenient and simple.

Description of drawings

Accompanying drawing 1 is an exploded perspective view of parts of the utility model one;

Accompanying drawing 2 is the exploded perspective view two of parts of the present utility model;

Accompanying drawing 3 is a front view of the utility model, wherein the brake column is separated from the brake hole;

Accompanying drawing 4 is the sectional view along A-A direction of accompanying drawing 3;

Accompanying drawing 5 is the sectional view along B-B direction of accompanying drawing 3;

Accompanying drawing 6 is the front view of the utility model, wherein the brake column is inserted into the brake hole;

Accompanying drawing 7 is the sectional view of accompanying drawing 6 along C-C direction;

Accompanying drawing 8 is the sectional view of accompanying drawing 6 along D-D direction;

Accompanying drawing 9 is the perspective view that has intermodal braking structure of the present utility model;

Among them: 1. Wheel joint; 2. Chute; 3. Brake column; 4. Pressure piece; 5. Raised part; 6. Recessed part; 7. Operating part; 1. Elastic part; 12. Blocking part; 13. Second elastic part; 14. Rotation shaft; 15. Pedal.

Detailed ways

The specific structure of the utility model will be further set forth below in conjunction with the accompanying drawings.

Referring to Figures 1-8, a brake structure for a stroller includes a brake disc mounted on the wheel of the stroller, a circle of brake holes set on the brake disc with the wheel axle as the center, and a circle of brake holes set on the brake disc along the length direction of the wheel axle. The chute 2 on the wheel joint 1 is slidably arranged in the chute 2 along the length direction of the wheel shaft to insert the brake column 3 into the brake hole. Since the matching structure of the brake column 3 and the brake hole is a common structure , so it is not shown in the drawings, there is a first elastic member 11 between the brake column 3 and the wheel joint 1 to provide an elastic restoring force for the brake column 3 to separate from the brake hole , the brake column 3 has a braking state and a brake release state. When the brake column 3 is in the brake state, the brake column 3 is inserted into a brake hole, and the rotation of the wheel is prevented by preventing the rotation of the brake disc. When the brake column 3 is in the release state , the brake column 3 is separated from the brake hole, the wheel joint 1 is rotatably provided with an operating member 7 through a rotating shaft 14, and the wheel joint 1 is also rotatably provided with a pressure piece 4 through a rotating shaft 14, and each attachment In the figure, the rotating shaft 14 is a pin bar that passes through the wheel joint 1, the pressing piece 4, and the operating piece 7 in turn, wherein the pin bar is fixed on the wheel joint 1, and the pressing piece 4 has a plurality of rings arranged at intervals. It is also used to push the brake column 3 into the protrusion 5 in the brake hole, and a recess 6 for accommodating the brake column 3 to separate it from the brake hole is formed between two adjacent protrusions 5, and the protrusion 5 is connected to the brake hole. There is a smooth transition between the depressions 6. The pressing member 4 is equipped with a ratchet 8, which is also sleeved on the rotating shaft 14. The operating part 7 is equipped with a device inserted between the teeth of the ratchet 8 to push the ratchet 8 toward The ratchet 9 that rotates in one direction is provided between the operating member 7 and the wheel joint 1 for providing an elastic restoring force of the operating member 7 to drive the ratchet 9 to slide along the tooth back of the ratchet 8 The second elastic part 13, the second elastic part 13 selects torsion spring for use, the torsion spring is sleeved on the rotating shaft 14, one end is connected on the operating part 7, and the other end is inserted in the fixing hole 15 on the wheel joint 1.

In each accompanying drawing, there are two ratchet wheels 8, which are installed on both sides of the pressure piece 4 respectively, and are respectively opposite to the operation member 7 and the wheel joint 1, and the ratchet 9 is inserted between the teeth of one of the ratchet wheels 8. The said wheel joint 1 is equipped with a stop pawl inserted between the teeth of the ratchet 8 to prevent the ratchet 8 from rotating in the opposite direction, the stop pawl is inserted between the teeth of another ratchet 8, and a plurality of protrusions 5 are distributed on The pressure piece 4 is on the side opposite to the wheel joint 1, and is distributed on the outer circumference of the ratchet 8, as shown in FIG. 2 .

A pedal 15 for stepping on is extended from the operating part 7. During operation, refer to accompanying drawings 3-8, step on the pedal 15 downwards to overcome the elastic force of the second elastic part 13, and the operating part 7 moves downward. Rotate, the ratchet 9 pushes the ratchet 8 to rotate around the rotating shaft 14, the rotation of the ratchet 8 drives the rotation of the pressure piece 4, when the pressure piece 4 rotates to the position where the protrusion 5 faces the brake column 3, it overcomes the first elastic piece 11 The elastic force of the raised part 5 presses against the brake column 3 and pushes the brake column 3 into the brake hole. At this time, the brake column 3 is in the braking state; Rotating blocking member 12, relying on the blocking of blocking member 12, plus relying on the stop pawl to prevent ratchet 8 from rotating, operating member 7 can stably make brake column 3 in the braking state, unclamp pedal 15, in the second Under the action of the elastic recovery force of the elastic member 13, the operating member 7 returns to the original position. When the brake is to be released, the pedal 15 is stepped on again, and the ratchet 9 pushes the ratchet 8 to continue to rotate around the rotating shaft 14, and the rotation of the ratchet 8 drives The rotation of the pressure piece 4, when the pressure piece 4 rotates to the position where the concave portion 6 faces the brake column 3, under the elastic restoring force of the first elastic piece 11, the brake column 3 returns to the concave portion 6, so that the brake column 3 Separated from the brake hole, now the brake column 3 is in the brake release state. Similarly, relying on the blocking of the stopper 12 and relying on the stop pawl to prevent the ratchet 8 from rotating, the operating part 7 can stably make the brake column 3 in the release state. In the braking state, the pedal 15 is released, and under the action of the elastic restoring force of the second elastic member 13, the operating member 7 returns to its original position. To achieve, the operation is convenient and simple.

When the above-mentioned brake structure is applied to a stroller, a brake structure is installed on each of the rear wheels on the left and right sides, and the linkage between the two brake structures is realized through the brake linkage. The brake of side wheel and unbrake, as shown in accompanying drawing 9.

Claims (4)

1. A brake structure for a stroller, comprising a brake disc mounted on the wheel of the stroller, a brake hole provided on the brake disc, a chute (2) provided on the wheel joint (1), slidingly located on the The chute (2) is used to insert the brake column (3) into the brake hole, and the wheel joint (1) is rotatably provided with an operating part (7), which is characterized in that: the wheel joint (1 ) is also rotatably provided with a pressure piece (4), which has a plurality of ring-shaped protrusions (5) arranged at intervals and used to push the brake column (3) into the brake hole, A recess (6) for accommodating the brake column (3) to separate it from the brake hole is formed between two adjacent protrusions (5), and the brake column (3) is connected to the wheel joint ( 1) There is a first elastic piece (11) for providing an elastic restoring force of the brake column (3) to separate it from the brake hole, and the pressure piece (4) is equipped with a ratchet (8). The operating part (7) is equipped with a pawl (9) inserted between the teeth of the ratchet (8) to push the ratchet (8) to rotate in one direction, the operating part (7) and the wheel joint (1) A second elastic member (13) for providing an elastic restoring force of the operating member (7) to drive the ratchet (9) to slide along the tooth back of the ratchet (8) is disposed therebetween. 2. The brake structure of baby carriage according to claim 1, characterized in that: the wheel joint (1) is equipped with a stopper inserted between the teeth of the ratchet (8) to prevent the ratchet (8) from rotating in the opposite direction claw. 3. The brake structure of baby carriage according to claim 2, characterized in that there are two said ratchet wheels (8), which are mounted on both sides of said pressure piece (4) respectively, and said ratchet wheels (9) ) is inserted between the teeth of one of the ratchets (8), and the stop pawl is inserted between the teeth of the other ratchet (8). 4. The brake structure of baby carriage according to claim 1, characterized in that: said wheel joint (1) is provided with a blocking member (12) for preventing said operating member (7) from excessive rotation.

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