CN209833732U

CN209833732U - Foldable baby carriage

Info

Publication number: CN209833732U
Application number: CN201822176811.3U
Authority: CN
Inventors: 赵国松
Original assignee: Shaoxing Shangyu Sunstar Hardware Products Co Ltd
Current assignee: Shaoxing Shangyu Sunstar Hardware Products Co Ltd
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2019-12-24
Anticipated expiration: 2028-12-24

Abstract

The utility model discloses a collapsible children's shallow, including preceding foot pole, back foot pole and handle pole, the top of preceding foot pole is rotated with the bottom of handle pole and is connected, the top of back foot pole is rotated with the middle part of handle pole and is connected, the handle pole is for the folding rod structure including last hand (hold) and lower hand (hold), the top and the lower hand (hold) of preceding foot pole rotate to be connected, back foot pole is located the outside of frame, and shelters from basically in shallow expansion state lower hand (hold). The utility model discloses a handle pole is for rolling over the pole structure, and under the shallow expansion state, back foot bar can shelter from down the hand (hold) for whole pole type is unanimous symmetrical, has promoted the whole aesthetic feeling of shallow.

Description

Foldable baby carriage

Technical Field

The utility model relates to an infant and child's product field especially relates to a collapsible children's shallow.

Background

The existing stroller is foldable for carrying convenience, a frame of the stroller generally comprises a plurality of connecting rods, the plurality of connecting rods form at least one four-bar linkage, and one of the connecting points is provided with a locking device.

For example, CN2186194Y discloses a foldable baby carriage, which comprises a carriage body, a front wheel set, a rear wheel, a roof and a seat cloth, wherein the carriage body is provided with a foldable structure consisting of a positioning hook, a hanging spring and a large joint, the hanging spring is arranged in the positioning hook, a hook body of the positioning hook is inserted into the large joint when the carriage is opened, and when the carriage is folded, the hook body of the positioning hook is separated from the large joint and is in parallel with the large joint.

Also for example, CN2794962Y discloses a stroller, which comprises a stroller frame, a front wheel and a rear wheel, wherein the stroller frame at least comprises a push handle rod and a rod member, the end of the rod member is rotatably connected with the push handle rod, a locking mechanism is arranged between the push handle rod and the rod member, the locking mechanism comprises a traction cable, a lock pin connected with the traction cable, and a jack arranged on the rod member, the lock pin is slidably arranged in an inner cavity of the push handle rod, the lower part of the lock pin is provided with an inclined surface, when the traction cable is pulled to a limit position, the part of the lock pin with the inclined surface is still inserted into the jack, and when the push handle rod is rotated relative to the rod member later, the inclined surface abuts against an upper port of the jack.

The two trolleys are all composed of a single four-bar linkage, the handle bar and the front foot bar are on the same straight line, and the joint at the joint is obviously larger than other parts and is very abrupt, so that the appearance of the whole trolley is influenced because the locking mechanism is arranged at the joint of the handle bar and the front foot bar.

SUMMERY OF THE UTILITY MODEL

The utility model provides a collapsible children's shallow has solved traditional shallow because of the joint is great, and the whole car is not pleasing to the eye problem enough.

The utility model provides a collapsible children's shallow, includes front foot pole, back foot pole and handle pole, the top of front foot pole is rotated with the bottom of handle pole and is connected, the top of back foot pole is rotated with the middle part of handle pole and is connected, the handle pole is for the folding rod structure that includes hand (hold) and lower handle, the top and the lower handle of front foot pole are rotated and are connected, back foot pole is located the outside of frame, and shelters from basically in shallow expansion state the lower handle.

Shelter from when observing the shallow from the side, because the sheltering from of back foot pole, the user is difficult to observe inboard lower handle and its and the rotation joint of preceding foot pole for the frame pole type seems comparatively unanimous.

Preferably, a linkage rod is arranged between the front foot rod and the rear foot rod, and two ends of the linkage rod are respectively connected with the front foot rod and the rear foot rod in a rotating mode. The front connecting rod, the handle rod, the rear foot rod and the linkage rod form a four-bar mechanism, and when a certain hinged point in the four-bar mechanism is locked, the structure of the four-bar mechanism is kept stable.

The back foot rod can adopt a straight rod structure, but the bending angle of the handle rod is too large, so that the strength of the handle rod is influenced. Preferably, the rear foot bar is a folding bar structure comprising an upper rear foot and a lower rear foot, and the upper rear foot substantially covers the lower handle.

More preferably, the upper rear foot is vertically arranged.

Preferably, the top of the rear foot rod is rotatably connected with a junction point of the upper handle and the lower handle, and an included angle formed by the lower handle and the rear foot rod is not more than 10 degrees. When the back foot bar is connected with the junction in a rotating mode, the width of the back foot bar does not need to be large, the lower handle can be shielded, the lower handle and the back foot bar do not need to be completely overlapped, and partial deviation can be allowed because the width of the downward handle is smaller than the width of the back foot bar.

The rear wheel is installed at the bottom of the rear foot rod, the front wheel is installed at the bottom of the front foot rod, the diameter of the rear wheel is larger than that of the front wheel, and the rear wheel is larger than the front wheel and looks more atmosphere and attractive.

Preferably, a locking mechanism is arranged at the rotating joint of the front foot rod and the handle rod, and the lower handle substantially covers the rotating joint. The locking mechanism is used for limiting the relative rotation of the connecting rod, and the locking mechanism is arranged at the connecting joint, so that the unlocking mechanism is conveniently arranged on the handle rod.

More preferably, the connection joint comprises a first joint and a second joint which are rotatably connected with each other and fixedly connected with the front foot rod and the handle rod respectively, and the locking device comprises a locking groove arranged on the first joint, a sliding pin arranged on the second joint and a return spring for driving the sliding pin to be inserted into the locking groove during locking.

The utility model discloses a handle pole is for rolling over the pole structure, and under the shallow expansion state, back foot bar can shelter from down the hand (hold) for whole pole type is unanimous symmetrical, has promoted the whole aesthetic feeling of shallow.

Drawings

Fig. 1 is a schematic structural view of the stroller in the unfolded state.

Fig. 2 is a schematic structural view of the stroller in the middle state.

Fig. 3 is a schematic structural view of the folding state of the stroller of the present invention.

Fig. 4 is a schematic structural diagram of the locking mechanism of the present invention.

Fig. 5 is an axial sectional view of the rotary joint of the present invention.

Detailed Description

As shown in fig. 1, a children handcart comprises a handle rod 1, a front foot rod 2, a rear foot rod 3 and a linkage rod 4, wherein the top end of the rear foot rod 3 is rotatably connected with the middle part of the handle rod 1, the top end of the front foot rod 2 is rotatably connected with the bottom end of the handle rod 1, the linkage rod 4 is arranged between the front foot rod 2 and the rear foot rod 3, two ends of the linkage rod 4 are respectively rotatably connected with the front foot rod 2 and the rear foot rod 3, and the handle rod 1, the front foot rod 2, the rear foot rod 3 and the linkage rod 4 form a four-bar mechanism.

Rear wheel 33 is installed to the bottom of back foot pole, and front wheel 21 is installed to the bottom of front foot pole, the utility model discloses a rear wheel 33 obviously is greater than the front wheel, mainly is the aesthetic feeling in order to promote the shallow.

The utility model discloses children's shallow has changed the structure of handle pole 1 and preceding foot bar 2 on same straight line of traditional shallow, and handle pole 1 is for rolling over the pole structure, including last hand (hold) 11 and lower handle 12, the top of back foot bar 3 is connected with the breakpoint position rotation of hand (hold) 1, and back foot bar 3 is enough owing to be located outside and width, under frame expansion state, it can shelter from hand (hold) 12 down basically to and the rotation joint 5 between lower hand (hold) 12 and preceding foot bar 2, make the pole type of frame unanimous.

In order to avoid excessive bending of the handle bar 1, the rear leg bar 3 is also of a folding bar structure and comprises an upper rear leg 31 and a lower rear leg 32, and only the upper rear leg 31 partially covers the lower handle 12 and the rotating joint 5. Although the upper rear foot 31 is shown not covering the lower handle 12, in practice the rear foot bar 3 has a width and the lower handle 12 has a smaller width, which hides the lower handle well, thus allowing an angle between the upper rear foot 31 and the lower handle 12, which is typically not greater than 10 °.

In order to realize the frame stability, a certain hinge of the four-bar linkage is provided with a locking mechanism, the utility model discloses the revolute joint 5 department between front foot pole 2 and the handle bar 1 is provided with a locking mechanism, so alright with release lock mechanism setting on the handle bar 1. The locking mechanism is used for limiting the relative rotation between the front foot rod 2 and the handle rod 1, and when the front foot rod and the handle rod can not rotate, the four-bar linkage mechanism keeps stable, and the baby stroller is in a unfolding state.

The locking mechanism may take various forms, as shown in fig. 4 and 5, in the present embodiment, the connecting joint 5 includes a first joint 51 and a second joint 52 fixedly connected to the front foot rod 2 and the handle rod 1, respectively, the first joint 51 is provided with a locking groove 53 arranged along the radial direction, and the second joint 52 is provided therein with a sliding pin 54 and a return spring 55 for driving the sliding pin 54 to be inserted into the locking groove 53. The sliding pin 54 is also typically connected to a release device via a pull wire 56, which is often provided on the handle bar 1 for ease of operation.

Fig. 1 shows only the frame portion of the stroller and obviously should also include the seat and back portions, and prior art stroller designs typically include a cloth cover over the frame to form the seat and back portions.

The utility model discloses children's shallow's theory of operation as follows:

as shown in fig. 1, in the frame-unfolded state, the swing joint 5 is located behind the rear leg bar 3, and when unlocking is required, the slide pin 54 is pulled by the pull wire 56, so that the slide pin 54 is withdrawn from the lock groove 53, and the handle bar 1 and the front leg bar 2 can be relatively swung.

As shown in fig. 2, the handle bar 1 is rotated counterclockwise to approach the rear foot bar 3, and the bottom end is lifted up, so that the front foot bar 2 also approaches the rear foot bar 3, as shown in fig. 3, and finally the handle bar 1, the front foot bar 2 and the rear foot bar 3 are attached together to complete the folding.

Claims

1. The utility model provides a collapsible children's shallow, includes preceding foot pole, back foot pole and handle pole, the top of preceding foot pole is rotated with the bottom of handle pole and is connected, the top of back foot pole is rotated with the middle part of handle pole and is connected, its characterized in that, the handle pole is for including the folding rod structure of last hand (hold) and lower hand (hold), the top and the lower hand (hold) of preceding foot pole are rotated and are connected, back foot pole is located the outside of frame, and shelters from at shallow expansion state lower hand (hold).

2. The foldable stroller as recited in claim 1, wherein a linkage is disposed between the front leg and the rear leg, and two ends of the linkage are rotatably connected to the front leg and the rear leg respectively.

3. The foldable stroller of claim 1, wherein said rear leg bar is a folding bar structure comprising an upper rear leg and a lower rear leg, said upper rear leg covering said lower handle bar.

4. The foldable stroller of claim 3, wherein said upper rear foot is vertically disposed.

5. The foldable stroller as recited in claim 1, 3 or 4, characterized in that the top of said rear leg bar is pivotally connected to the intersection of said upper and lower handles, said lower handle forming an angle with said rear leg bar of not more than 10 °.

6. The foldable stroller of claim 1, wherein the rear leg has a rear wheel mounted to a bottom thereof, and the front leg has a front wheel mounted to a bottom thereof, the rear wheel having a diameter greater than a diameter of the front wheel.

7. The foldable stroller of claim 1, wherein a locking mechanism is provided at the pivot joint of the front foot bar and the handle bar, and the lower handle covers the pivot joint.

8. The foldable stroller of claim 7, wherein the pivot joint comprises a first joint and a second joint pivotally connected to each other and fixedly connected to the front leg bar and the handle bar, respectively, and the locking means comprises a locking groove formed in the first joint, a sliding pin formed in the second joint, and a return spring for driving the sliding pin to be inserted into the locking groove when locked.