CN201258003Y - Locking mechanism of foldable children's barrow - Google Patents

Abstract

A locking mechanism for a foldable stroller, comprising: a first rod composed of a first rod and a first tip; a second rod composed of a second rod and a second tip, the first The outer end of a tip is rotatably connected with the second rod; a locking hook provided on the first rod is rotated, and the locking hook is provided with a locking groove for accommodating the second tip. The locking hook has a locking position for receiving the second tip in the locking groove and an unlocking position for disengaging the second tip from the locking groove. The first rod is the push rod, and the second rod is the front foot rod. The utility model is convenient to operate, compact and beautiful.

Description

A locking mechanism for a foldable baby stroller

technical field

The utility model relates to a locking mechanism of a foldable children's stroller.

Background technique

In the prior art, the unfolding and locking of the foldable umbrella handle car is usually achieved by using a cross bar configured to fix the width between a pair of rear leg bars. Such as the utility model patent that the patent No. is 03259606.5 has just disclosed such an umbrella handle car. This method is inconvenient to operate, and there are relatively few implementations that can be changed.

Contents of the invention

The purpose of the utility model is to provide an easy-to-operate, compact and beautiful locking mechanism for a foldable children's stroller.

For achieving the above object, the technical scheme that the utility model adopts is:

A locking mechanism for a foldable children's stroller. The frame of the children's stroller includes: a pair of left and right push rods; The upper ends are rotatably connected; a locking mechanism for fixing the vehicle frame in the deployed position. The locking mechanism includes: a first rod composed of a first rod and a first tip; a second rod composed of a second rod and a second tip, and the outer end of the first tip The part is rotatably connected with the second rod part; the locking hook provided on the first rod part is rotated, and the locking hook is provided with a locking groove for accommodating the second tip part. The locking hook has a locking position for receiving the second tip in the locking groove and an unlocking position for disengaging the second tip from the locking groove. The first rod is any part of the push rod or the front foot rod, and the second rod is the push rod or another part of the front foot rod.

The first rod is the push rod, and the second rod is the front foot rod.

The wrapping angle of the locking groove is greater than 180 degrees and less than 230 degrees.

The locking hook is a ring-shaped component that is sleeved on the outer surface of the first rod, and the locking hook is provided with a hook bent into a U shape at an end far away from the first rod, and the locking groove It is the inner side of the U shape surrounded by this hook part. On the outer side of the U-shape surrounded by the hook portion, a handle for user's operation protrudes.

The vehicle frame also includes: a pair of left and right rear legs, the lower end of the push rod on the same side is rotatably connected to the upper end of the rear legs; a pair of left and right seat posts, the seat posts bridge Between the middle part of the front foot rod and the middle part of the rear foot rod; a bottom cross strut formed by a pair of rods hinged to each other in the middle, the four ends of the bottom cross strut are respectively connected with a pair of the front foot rods and a The rear foot rods are rotatably connected; the rear cross brace is composed of a pair of rods hinged at the middle, and the four ends of the rear cross brace are respectively connected with a pair of the rear foot rods and a pair of push rods. Phase rotation connection.

Due to the application of the above technical solution, the utility model has the advantages of convenient operation, small size and beautiful appearance.

Description of drawings

Accompanying drawing 1 is the three-dimensional view that has used the vehicle frame of the children's stroller of the present utility model in the unfolded state;

Accompanying drawing 2 is the front view of the utility model under locked state;

Accompanying drawing 3 is the front view of the utility model in the unlocked state;

Among them: 1. Frame; 2. Front foot bar; 3. Rear foot bar; 4. Seat post; 5. Bottom cross brace; 6. Rear cross brace; 7. Push rod; 10. First rod; 11. 12, the first tip; 20, the second rod; 21, the second rod; 22, the second tip; 30, the first connector; 40, the locking hook; 41, the locking groove; 42. Hook; 43. Handle; 50. Second connecting piece; 70. Locking mechanism.

Detailed ways

Specific embodiments of the present utility model are described below in conjunction with accompanying drawings.

As shown in accompanying drawing 1, this baby stroller is a foldable umbrella handle car, and its vehicle frame 1 comprises:

A pair of left and right front foot rods 2;

A pair of left and right rear foot poles 3;

A pair of push rods 7 on the left and right, and the push rods 7 are rotationally connected with the front foot rod 2 and the rear foot rod 3 at the same time;

A pair of seatposts 4 on the left and right, the seatposts 4 bridge between the middle part of the front footbar 2 and the middle part of the rear footbar 3;

A bottom cross strut 5 composed of a pair of rods hinged to each other in the middle, the four ends of the bottom cross strut 5 are respectively rotatably connected to a pair of front leg rods 2 and a pair of rear leg rods 3;

The rear cross strut 6 is composed of a pair of rods hinged in the middle, and the four ends of the rear cross strut 6 are rotatably connected to a pair of rear foot rods 3 and a pair of push rods 7 respectively.

The locking mechanism 70 implemented according to the utility model is arranged on the connection point between the push rod 7 and the front foot bar 2, and its specific structure is shown in accompanying drawing 2 and accompanying drawing 3 .

Locking mechanism 70 includes:

A first rod 10 divided into a first rod 11 and a first tip 12, in this embodiment, the first rod 10 is a push rod 7;

A second rod 20 divided into a second rod 21 and a second tip 22, in this embodiment, the second rod 20 is the front foot rod 2;

A ring-shaped locking hook 40 sleeved on the first rod portion 11, the locking hook 40 can rotate around the first rod portion 11;

A locking slot 41 is provided on an end of the locking hook 40 away from the first rod 11 , and the locking slot 41 is used to accommodate the second tip 22 .

One end of the lock hook 40 away from the first rod 11 is bent toward one side to form a U-shaped hook portion 42 , and the inner space of the U-shape is the locking groove 41 . The wrapping angle of the locking groove 41 is 225 degrees, which is just enough to ensure that the second tip 22 will not escape from the locking groove 41 . During the rotation around the first rod 11 , the locking hook 40 has a locking position where the second tip 22 is embedded in the locking slot 41 and an unlocking position where the second tip 22 is disengaged from the locking slot 41 .

On the outside of the hook portion 42, a bar-shaped handle protrudes to facilitate the user's operation.

As shown in accompanying drawing 1, the first tip 12 of the push rod 7, the second rod portion 21 of the front foot rod 2, the seat post 4, and the rear foot rod 3 form a four-bar linkage mechanism. Through the folding of the four-bar linkage mechanism, as well as the folding of the bottom cross brace 5 and the rear cross brace 6, the vehicle frame 1 can be changed from the unfolded state to the folded state. And by fixing the angle between the push rod 7 and the front foot bar 2, the fixing of the whole vehicle frame 1 can be realized. Therefore, the locking mechanism 70 is installed between the push rod 7 and the front foot rod 2, and by fixing the angle between the push rod 7 and the front foot rod 2 at 180 degrees, the vehicle frame 1 can be fixed in the unfolded state. .

As mentioned above, we have fully described according to the purpose of the utility model, but the utility model is not limited to the above-mentioned embodiment and implementation method. Practitioners in the relevant technical fields can make different changes and implementations within the scope permitted by the technical ideas of the present utility model.

Claims (7)

1, a kind of lockout mechanism of folding children's barrow, the vehicle frame of described children trolley (1) comprises: pair of right and left push rod (7); Foot lever (2) before the pair of right and left, the bottom that is positioned at the described push rod (7) of homonymy rotates with the upper end of described preceding foot lever (2) and is connected; Be used for described vehicle frame (1) is fixed on the lockout mechanism (70) of expanded position, it is characterized in that:

Described lockout mechanism (70) comprises:

First rod member (10) by the first bar portion (11) and first taper (12) formation;

By second rod member (20) that the second bar portion (21) and second taper (22) constitute, the outer end of described first taper (12) rotates with the described second bar portion (21) and is connected;

Rotation is arranged on the latch hook (40) in the described first bar portion (11), and this latch hook (40) possesses the lock slots (41) that is used to hold described second taper (22),

Described latch hook (40) possesses the unlocked position that described second taper (22) is contained in the latched position in the described lock slots (41) and makes described second taper (22) break away from the described lock slots (41),

Described first rod member (10) is the arbitrary parts in described push rod (7) or the described preceding foot lever (2), and described second rod member (20) is another parts in described push rod (7) or the described preceding foot lever (2).

2, the lockout mechanism of a kind of folding children's barrow according to claim 1 is characterized in that: described first rod member (10) is a described push rod (7), and described second rod member (20) is described preceding foot lever (2).

3, the lockout mechanism of a kind of folding children's barrow according to claim 1 is characterized in that: the cornerite of described lock slots (41) is greater than 180 degree, less than 230 degree.

3, the lockout mechanism of a kind of folding children's barrow according to claim 1 is characterized in that: the turning cylinder that described latch hook (40) parallels around the axial line with the described first bar portion (11) rotates with the described first bar portion (11) and is connected.

4, the lockout mechanism of a kind of folding children's barrow according to claim 3 is characterized in that: described turning cylinder overlaps with the axial line of the described first bar portion (11).

5, the lockout mechanism of a kind of folding children's barrow according to claim 4, it is characterized in that: described latch hook (40) is for being enclosed within the endless member on described first bar portion (11) outside face, possesses the hook portion (42) that is bent into the U font at described latch hook (40) at a end, the serve as reasons inboard of the U font that this hook portion (42) surrounds of described lock slots (41) away from the described first bar portion (11).

6, the lockout mechanism of a kind of folding children's barrow according to claim 5 is characterized in that: in the outside of the U font that is surrounded by described hook portion (42), protrude the handle that is provided with for user's operation.

7, the lockout mechanism of a kind of folding children's barrow according to claim 1, it is characterized in that: described vehicle frame (1) also comprises: foot lever after the pair of right and left (3), and the bottom that is positioned at the described push rod (7) of homonymy rotates with the upper end of described back foot lever (3) and is connected; Pair of right and left seat bar (4), this bar (4) be connected across described before between the middle part of the middle part of foot lever (2) and described back foot lever (3); The end cross strut (5) that a pair of rod member that is hinged by the middle part constitutes, 4 ends of this end cross strut (5) rotate with a pair of described preceding foot lever (2) and a pair of described back foot lever (3) respectively and are connected; The back cross strut (6) that a pair of rod member that is hinged by the middle part constitutes, 4 ends of this back cross strut (6) rotate with a pair of described back foot lever (3) and a pair of described push rod (7) respectively and are connected.

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