CN202429233U - Stroller retractable locking device - Google Patents

Abstract

The utility model relates to the technical field of baby products, in particular to a baby carriage folding and locking device, which comprises two carriage frame rods, two upper connecting rods, a middle connecting rod, two lower connecting rods, two connecting rods, a lock column, two lock seats and a folding pedal column, wherein the folding pedal column is arranged at the hinged part of the lower connecting rod and the middle connecting rod, the lock column is arranged at the hinged part of the upper connecting rod and the middle connecting rod, the two lock seats are slidably connected onto the middle connecting rod, the two lock seats are provided with lock holes, the lock column is clamped in the lock holes, under the unfolding condition of the baby carriage, when the first lock fails, the lock column on the upper connecting rod and the middle connecting rod is clamped by the lock holes of the two lock seats, a connecting rod mechanism cannot be folded upwards so as not to continue to fold the baby carriage, and the effect of the two locks is achieved; when needing to receive the car, earlier with the receipts of first lock receive the footboard post up the top, toward stepping down two lock seat tops outward again, the lock post just drops out from the lockhole of two lock seats, alright receipts car this moment, factor of safety is high, simple structure, convenient to use.

Description

Stroller retractable locking device

Technical field:

The utility model relates to the technical field of baby products, in particular to a folding and locking device for a stroller.

Background technique:

A stroller can have a seat, a carrycot or a car chair on the frame, and is primarily used for seating or storing items for a young child. Existing folding stroller comprises front vehicle frame, rear vehicle frame and push handle, and front wheel set is installed at the bottom of front vehicle frame, and rear wheel set is installed at the bottom of rear vehicle frame, and front vehicle frame and push handle are connected with rear vehicle frame respectively. Hinged to form a folded structure. The frame of some strollers is also a foldable structure. After the frame is unfolded, it is generally fixed by a locking device, but this locking device has only one lock. When the lock fails, the frame can be folded at will, which is easy to cause baby Injury accidents, low safety.

Utility model content:

The purpose of the utility model is to provide a baby carriage folding and locking device with high safety in view of the deficiencies in the prior art.

In order to achieve the above object, the technical solution adopted by the utility model is:

Stroller retractable locking device, including two frame rods, two upper links, middle links, two lower links, two connecting links, lock columns, two lock seats, retractable pedal columns, The first ends of the two upper links are hinged with the upper ends of the middle links, the second ends of the two upper links are respectively hinged with the two frame rods, and the first ends of the two lower links are connected with the middle links. The lower ends are hinged, the second ends of the two lower connecting rods are respectively hinged on the two frame rods, the upper ends of the two connecting rods are respectively hinged on the two lock seats, and the lower ends of the two connecting rods are connected with the two lower ends respectively. The second end of the connecting rod is hinged, the retractable pedal column is set at the hinge of the lower link and the middle link, the lock column is set at the hinge of the upper link and the middle link, and the second lock seat is slidingly connected to the middle link , the second lock seat is provided with a lock hole, and the lock cylinder is stuck in the lock hole.

The top of the secondary lock seat is bent outward to form a lug.

The material of the secondary lock seat is plastic.

The upper link is arranged parallel to the lower link.

The beneficial effects of the utility model are: the utility model includes two frame rods, two upper links, a middle link, two lower links, two connecting links, a lock cylinder, two lock seats, and a folding pedal The retractable pedal column is set at the hinge of the lower link and the middle link, and the lock column is set at the hinge of the upper link and the middle link. The second lock seat is slidably connected to the middle link, and the second lock seat is There is a lock hole, and the lock cylinder is stuck in the lock hole. When the baby carriage is unfolded, when the first lock fails, the lock cylinder on the upper link and the middle link will be stuck by the lock hole of the second lock seat. , the link mechanism cannot be retracted upwards so that the car cannot continue to be retracted, and it plays the role of the secondary lock; when the vehicle needs to be retracted, first push the retractable pedal column of the first lock upwards, and then step on the secondary lock outward At the top of the seat, the lock cylinder will come out from the lock hole of the second lock seat, and the car can be received at this time, with high safety factor, simple structure and convenient use.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

Fig. 2 is an exploded schematic view of the utility model.

Fig. 3 is a structural schematic diagram of opening the first lock of the utility model.

Fig. 4 is a structural schematic diagram of opening the second lock of the utility model.

Fig. 5 is a schematic structural view of the utility model in a folded state.

Detailed ways:

The utility model will be further described below in conjunction with the accompanying drawings, as shown in Figures 1 to 5, the folding and locking device for the stroller includes two frame rods 1, two upper connecting rods 2, an intermediate connecting rod 3, and Two lower connecting rods 4, two connecting connecting rods 5, a lock column 6, two lock seats 7, and a retractable pedal column 8 are arranged in parallel on the upper connecting rod 2. The top of the secondary lock seat 7 is bent outwards to form lugs 72, which are convenient to step on and easy to operate. The material of the secondary lock seat 7 is plastic, which can produce elastic deformation.

The first ends of the two upper links 2 are hinged to the upper ends of the middle link 3, the second ends of the two upper links 2 are respectively hinged on the two frame rods 1, and the first ends of the two lower links 4 are both hinged. It is hinged with the lower end of the middle connecting rod 3, the second ends of the two lower connecting rods 4 are respectively hinged on the two frame rods 1, and the upper ends of the two connecting rods 5 are respectively hinged on the secondary lock seats 7, and the two The lower ends of the connecting rods 5 are respectively hinged with the second ends of the two lower connecting rods 4, the retractable pedal post 8 is arranged at the hinge joint between the lower connecting rod 4 and the middle connecting rod 3, and the lock post 6 is arranged at the joint between the upper connecting rod 2 and the middle one. At the hinge of the connecting rod 3, the second lock base 7 is slidably connected to the middle connecting rod 3, and the second lock base 7 is provided with a lock hole 71, and the lock cylinder 6 is clamped in the lock hole 71.

When the baby stroller is unfolded, when the first lock fails, the lock cylinder 6 on the upper link 2 and the middle link 3 is stuck by the lock hole 71 of the second lock seat 7, and the link mechanism cannot be retracted upward. Thereby can not continue to close the car, play the effect of secondary lock; The lug 72 on the top and the lock cylinder 6 just come off from the keyhole 71 of the second lock seat 7, and now the car can be received, the safety factor is high, the structure is simple, and it is easy to use.

Of course, the above are only preferred embodiments of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the utility model patent application are included in the utility model patent application within range.

Claims (4)

1. perambulator folds Locking Device; Include two vehicle frame bars (1); It is characterized in that: also include two boxed rods (2), intermediate connecting rod (3), two lower links (4), two and connect connecting rod (5), lock (6), two road locks (7), fold pedal post (8); First end of two boxed rods (2) is all hinged with the upper end of intermediate connecting rod (3), and second end of two boxed rods (2) is hinged on respectively on two vehicle frame bars (1), and first end of two lower links (4) is all hinged with the lower end of intermediate connecting rod (3); Second end of two lower links (4) is hinged on respectively on two vehicle frame bars (1); Two upper ends that connect connecting rod (5) are hinged on respectively on the two road locks (7), and two lower ends that connect connecting rod (5) are hinged with second end of two lower links (4) respectively, fold the hinged place that pedal post (8) is arranged on lower link (4) and intermediate connecting rod (3); Lock (6) is arranged on the hinged place of boxed rod (2) and intermediate connecting rod (3); Two road locks (7) are slidingly connected on the intermediate connecting rod (3), offer lockhole (71) on the two road locks (7), and lock (6) is fastened in the lockhole (71).

2. perambulator according to claim 1 folds Locking Device, it is characterized in that: the top of said two road locks (7) outwards is bent to form lug (72).

3. perambulator according to claim 1 folds Locking Device, it is characterized in that: the material of said two road locks (7) is a plastic cement.

4. perambulator according to claim 1 folds Locking Device, it is characterized in that: said boxed rod (2) laterally arranges with lower link (4).

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