CN100519296C - Bassinet - Google Patents

Abstract

A baby carriage, which includes a vehicle frame with an unfolded state and a folded state, a front wheel assembly arranged at the bottom front of the vehicle frame, and a rear wheel assembly arranged at the bottom rear of the vehicle frame, the The vehicle frame has a front wheel bracket, a connecting end slidably arranged on the front wheel bracket along the length direction of the front wheel bracket, and a push rod whose lower end is rotatably arranged on the connecting end, The extension direction of the rotation axis of the push rod is consistent with the sliding direction of the connecting end, the connecting end is slidably provided with a lock, and the front wheel bracket is provided with a lock. hole, when the frame changes from the unfolded state to the folded state, first turn the push rod to make the eccentric shift block move the lock head, so that the lock head is out of the lock hole, and then push the push rod down to fold the frame of the stroller . When the vehicle frame is converted from the folded state to the unfolded state, due to the elastic force of the spring, the lock head is positioned in the lock hole to lock the vehicle frame of the baby carriage, and the operation is relatively convenient.

Description

stroller

technical field

The invention relates to a baby carriage.

Background technique

In the prior art, baby carriages generally include a vehicle frame, a front wheel assembly arranged at the lower front portion of the vehicle frame, a rear wheel assembly arranged at the lower rear portion of the stroller frame, and a locking mechanism for locking the vehicle frame. mechanism, usually the locking mechanism includes a lock hole arranged on the frame, a lock block and a button for unlocking, the locking mechanism has two states of unlocking and locking, and the button must be pressed to make the The lock block described above switches between the locked state and the unlocked state, and the operation is relatively cumbersome.

Contents of the invention

The object of the present invention is to provide a baby carriage with an easy-to-operate frame locking mechanism.

In order to achieve the above-mentioned purpose, the technical solution of the present invention is: a baby carriage, which includes a vehicle frame with an unfolded state and a folded state, a front wheel assembly arranged at the bottom front of the vehicle frame, and a front wheel assembly arranged at the bottom front of the vehicle frame. The rear wheel assembly at the bottom rear of the vehicle frame, the vehicle frame has a front wheel bracket, a connecting end that is slidably arranged on the front wheel bracket along the length direction of the front wheel bracket, and the lower end is rotatable The push rod arranged on the connecting end, the extension direction of the rotation axis of the push rod is consistent with the sliding direction of the connecting end, and the connecting end is slidably provided with The lock head has a lock hole on the front wheel bracket. The lock head has two states of locking and unlocking. When the lock head is in the locked state, the lock head is inserted into the lock head In the hole; when the lock head is in the unlocked state, the lock head is out of the lock hole, and the lower end of the push rod is fixed with an eccentric shift block. During the transition of the folded state, the eccentric shift block is used to shift the lock head.

The lock head is slidably arranged on the connecting end in a direction perpendicular to the axis of the front wheel bracket.

A spring is provided between the lock head and the connecting end, and the spring makes the lock head have a tendency to be in a locked state stably.

The front wheel bracket is arranged parallel to the push rod.

The upper top end of the front wheel support is fixedly provided with an upper connecting piece, and the upper connecting piece is provided with a guide hole, and the push rod is axially slidably inserted into the guide hole.

The lock head is provided with an arc-shaped slot matched with the eccentric shift block, and the eccentric shift block is rotatably inserted in the arc-shaped slot.

The advantage of the present invention is: since the lower end of the push rod of the present invention has an eccentric shift block, when the vehicle frame is converted from the unfolded state to the folded state, the push rod is first rotated to make the eccentric shift block move the lock head, so that the lock head is disengaged from the lock. hole, then push down on the push lever to fold the frame of the stroller. When the frame is converted from the folded state to the unfolded state, you only need to push the push rod upwards. When the lock head in the connecting end of the lower end of the push rod is aligned with the lock hole, the lock head is locked in the lock hole due to the elastic force of the spring. The frame of the stroller is more convenient to operate.

Description of drawings

Accompanying drawing 1 is the folding state figure of the present invention;

Accompanying drawing 2 is the expanded state diagram of the present invention;

Accompanying drawing 3 is the sectional view that the lock head of the present invention is located in the lock hole;

Accompanying drawing 4 is the sectional view that the lock head of the present invention breaks away from the lock block;

Accompanying drawing 5 is the structural representation of push rod;

Accompanying drawing 6 is the sectional view of accompanying drawing 5;

Accompanying drawing 7 is A-A direction sectional view among accompanying drawing 3;

Accompanying drawing 8 is the sectional view of B-B direction in accompanying drawing 4;

Among them: 1. Push rod; 2. Upper connector; 3. Frame; 4. Front wheel support; 5. Arc groove; 6. Connecting end; 7. Eccentric shift block; 8. Lock head; 9. Spring ; 10, keyhole; 11, front wheel assembly; 12, rear wheel assembly; 13, rear wheel bracket; 14, connecting rod; 15, sliding sleeve.

Detailed ways

A stroller as shown in accompanying drawing 1 to accompanying drawing 8, it comprises the vehicle frame 3 that has expanded state and folded state, the front wheel assembly 11 that is arranged on the bottom front part of described vehicle frame 3, is arranged on described The rear wheel assembly 12 at the bottom rear part of the vehicle frame 3, the vehicle frame 3 has a front wheel support 4, a connecting end that can be slidably arranged on the front wheel support 4 along the length direction of the front wheel support 4 The head 6 and the push rod 1 whose lower end is rotatably arranged on the connecting head 6, the extension direction of the rotation axis of the pushing rod 1 is consistent with the sliding direction of the connecting head 6 , the connecting end 6 is slidably provided with a lock head 8, and the front wheel bracket 4 is provided with a lock hole 10, and the lock head 8 has two states of locking and unlocking, when the lock When the head 8 is in the locked state, the lock head 8 is inserted into the lock hole 10; when the lock head 8 is in the unlocked state, the lock head 8 is separated from the lock hole 10, so The lower end of the push rod 1 is fixed with an eccentric shift block 7. When the frame 3 is transformed from the unfolded state to the folded state, the eccentric shift block 7 is used to shift the lock head 8 .

The lock head 8 is slidably arranged on the connecting end 6 along a direction perpendicular to the axis of the front wheel bracket 4 .

A spring 9 is provided between the lock head 8 and the connection end 6, and the spring 9 makes the lock head 8 have a tendency to be in a locked state stably.

The front wheel bracket 4 is arranged parallel to the push rod 1 .

The upper top end of the front wheel bracket 4 is fixedly provided with an upper connecting piece 2, and the upper connecting piece 2 has a guide hole, and the push rod 1 is axially slidably inserted into the guide hole.

The lock head 8 is provided with an arc-shaped slot 5 matched with the eccentric shift block 7 , and the eccentric shift block 7 is rotatably inserted in the arc-shaped slot 5 .

When the stroller is converted from the unfolded state to the folded state, first turn the push rod 1, and the eccentric shift block 7 fixed on the lower end of the push rod 1 will also rotate accordingly, and the eccentric shift block 7 will be pressed against the lock head 8 when rotating. On, toggle the lock head 8 to break away from the lock hole 10, even if the locking mechanism is unlocked, push the push rod 1 downward at this time, and drive the connecting end 6 at the end of the push rod 1 to move downward, because the connecting end 6 and the rear wheel bracket Connecting rod 14 is connected between 13, and connecting rod 14 moves down along with connecting terminal 6, makes front wheel bracket 4 and rear wheel bracket 13 fold, and now baby carriage is in folded state.

When the stroller is converted from the folded state to the unfolded state, first pull the push rod 1 upwards, so that the connecting terminal 6 at the end of the push rod 1 moves upwards, because the connecting rod 14 is connected between the connecting terminal 6 and the rear wheel bracket 13 , so that the front wheel bracket 4 and the rear wheel bracket 13 are relatively expanded. When the lock head 8 in the connecting end 6 at the end of the push rod 1 slides to align with the lock hole 10, the elastic force of the spring 9 pushes the lock head 8 to insert In the lock hole 10, that is, the locking mechanism is locked, and the stroller is in the unfolded state at this time.

Claims (6)

1. A stroller, comprising a frame (3) in an unfolded state and a folded state, a front wheel assembly (11) arranged at the bottom front of the frame (3), a front wheel assembly (11) arranged on the frame (3) The rear wheel assembly (12) at the bottom rear part is characterized in that: the vehicle frame (3) has a front wheel support (4), which can slide along the length direction of the front wheel support (4) The connection end (6) that is arranged on the front wheel bracket (4), the push rod (1) that the lower end is rotatably arranged on the connection end (6), and the push rod (1) The extension direction of the axis of rotation of the connecting head (6) is consistent with the sliding direction of the connecting end (6), and the locking head (8) is slidably arranged on the connecting end (6), and the front wheel bracket (4) has a lock hole (10), and the lock head (8) has two states of locking and unlocking. When the lock head (8) is in the locked state, the lock head (8) Inserted in the lock hole (10); when the lock head (8) is in the unlocked state, the lock head (8) breaks away from the lock hole (10), and the push rod ( The lower end of 1) is fixed with an eccentric shift block (7), and when the frame (3) is converted from the unfolded state to the folded state, the eccentric shift block (7) is used to shift the Lock (8). 2. The stroller according to claim 1, characterized in that: said lock head (8) is slidably arranged on said connecting end (6) in a direction perpendicular to the axis of the front wheel bracket (4) superior. 3. The stroller according to claim 1, characterized in that: a spring (9) is arranged between the lock head (8) and the connecting end (6), and the spring (9) makes The lock head (8) has a tendency to be in a locked state stably. 4. The stroller according to claim 1, characterized in that: said front wheel support (4) is arranged parallel to said push rod (1). 5. The stroller according to claim 4, characterized in that: the upper top end of the front wheel bracket (4) is fixedly provided with an upper connector (2), and the upper connector (2) is provided with a guide hole , the push rod (1) can be axially slidably inserted into the guide hole. 6. The stroller according to claim 1, characterized in that: said lock head (8) is provided with an arc-shaped groove (5) matching with said eccentric shift block (7), and said eccentric The shifting block (7) is rotatably inserted in the arc-shaped groove (5).

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