CN206155523U - Baby's handcart of wholly folding up - Google Patents

Abstract

The utility model discloses an integrally folded baby trolley, which comprises a front foot bar, a rear foot bar and a push handle bar. The tops of the front foot bar and the rear foot bar are connected by a hinge mechanism, and a The front support bar and the rear support bar form a foldable vehicle frame; a car retraction linkage is connected between the front foot bar and the rear foot bar, and a driving member for driving the car retraction linkage to deform is provided on the rear support bar. The utility model has the following advantages: the linkage folding design of the car receiving frame and the car receiving linkage parts optimizes the folding process and is more convenient to use; Stability; the design of the support vertical bar can easily adjust the force arm of the four-bar linkage mechanism and the car receiving linkage to adapt to different usage situations.

Description

An integrally foldable baby trolley

technical field

The utility model relates to the field of children's products, in particular to an integrally foldable baby trolley.

Background technique

Stroller is a tool cart designed for the convenience of baby's outdoor activities. It is the baby's favorite means of transportation for walking, and it is also a must-have for mothers when they take their baby to the street for shopping. With the progress of production and life, there are more and more usage scenarios of baby carriages.

The Chinese patent document with publication number CN101544242 discloses a foldable stroller, which belongs to the technical field of folding mechanism structure. A foldable stroller, comprising a push rod and a front wheel bracket and a rear wheel bracket with wheels at the bottom, characterized in that the front wheel bracket and the rear wheel bracket are movably connected to the upper push rod through a center plate, and the middle part of the push rod is connected to the push rod through a side support The rear end of the base is movably connected, the middle part of the front wheel support is movably connected with the front end of the base, the rear wheel support is movably connected with the middle part of the base through the rear wheel support pull rod, and the base is locked with the rear wheel support by a folding locking device.

The Chinese patent document with the publication number CN201347112 discloses a foldable stroller frame, which includes a front bracket, a rear bracket rotatably connected to the front bracket, a push rod slidingly connected to the front bracket, two ends connected to the front bracket and the push rod respectively. The rod is rotatably connected to the first connecting rod, one end is rotatably connected to the push rod, one end is rotatably connected to the push rod, and the other end is at least one folding lock hook in the shape of a hook. Locking pin that fits the shackle. After the folding knob is unlocked and the folding lock hook is unlocked, push the push rod down, and its front end moves in a plane under the action of the connecting rod. Through the seat rod, pull the rear bracket forward and push the rod close to complete the folding process. When it is necessary to support the stroller , the above process can be completed in reverse.

The above technical solution realizes the folding of the stroller, but the folding process is relatively cumbersome, and at the same time, multiple exposed joint mechanisms are likely to cause injury to children.

The Chinese patent document with publication number CN201257998 discloses a collapsible stroller folding joint, which involves a foldable stroller, including a front wheel bracket, a rider bracket, a functional handle and a functional latch, and the end of the front wheel bracket is fixedly connected to a lower seat. The front end of the driver's bracket is fixedly connected to the upper seat, and the lower seat is connected to the upper seat in rotation. The driver's bracket is threaded with a pull wire, and the front wheel bracket and the upper connection seat have accommodating holes for accommodating functional pins. Connection, the function pin is provided with a spring, and the function pin can partly enter the accommodation hole of the front wheel bracket under the action of the function handle, spring and pull wire, and partly cooperate with the accommodation hole connecting the upper seat, or with the accommodation of the front wheel bracket The holes are disengaged and all cooperate with the accommodating holes connecting the upper seat. This technical solution optimizes the position of the switch through the pull wire and improves safety, but the folding process is still relatively cumbersome.

Utility model content

Aiming at the deficiencies in the prior art, the utility model provides an integrally folded baby trolley which realizes integrally linked folding through linkage of rods.

The technical scheme of the utility model is:

An integrally folded baby trolley, comprising a front foot bar, a rear foot bar and a push handle bar, the tops of the front foot bar and the rear foot bar are swingingly connected by a hinge mechanism, and a front support bar and a rear support bar are connected between the front foot bar and the push handle bar. The support rod constitutes a foldable vehicle frame; a car receiving linkage is connected between the front foot bar and the rear foot bar, and a driving member for driving the car receiving linkage to deform is provided on the rear support bar.

The foldable frame of the baby trolley that is folded as a whole forms a four-bar linkage mechanism through the front foot bar, push handle bar, front support bar and rear support bar. The four-bar link mechanism can fold the main body of the frame. In the action, the car closing linkage is connected with the driving part. During the movement of the four-bar linkage, the driving part is driven by the rear support rod to drive the closing link to complete the movement of the rear foot bar. The advantage of this design is that it can conveniently realize the linkage folding of the whole vehicle. Moreover, the connection of multi-dimensional rods can improve the structural rigidity of the vehicle frame in the unfolded state and ensure safety.

Wherein, during the folding process of the four-bar linkage mechanism, the moving direction of the rod is not kept on a straight line, and multi-angle changes may occur. In order to ensure the effectiveness of the linkage with the rear foot rod, as a preference, the driving part is Rod-shaped, one end is hinged with the rear support rod, and the other end is connected with the car receiving linkage. The rod-shaped driving part means that the driving part is a rigid rod such as a driving rod, which can transmit force in different directions to the retracting linkage, so as to ensure the stability of the rear foot rod's linkage folding.

Similarly, the car receiving linkage can also choose flexible fabrics, multi-link mechanisms, etc., but from the perspective of the manufacturing process of baby strollers, the processing of the rods is more in line with the requirements of the flow operation of baby strollers. Preferably, the vehicle receiving linkage is a deformable link mechanism. The advantage of this design is that it can provide a more stable folding process. The degree of freedom of the link mechanism is lower, and the movement process is stable. Therefore, when the baby stroller is folded, the movement of each rod is more certain, which can more effectively resist external interference and improve the stability of the frame.

As a further preference, the connecting rod mechanism is a first connecting rod and a second connecting rod sequentially hinged between the front leg rod and the rear leg rod. The first connecting rod and the second connecting rod are connected end to end on the front leg rod and the rear leg rod, and preferably, the driving rod is hinged on a rotating shaft between the first connecting rod and the second connecting rod. When the four-bar linkage moves, the driving part squeezes the rotating shaft of the first link and the second link, and the first link and the second link can draw the front foot bar and the rear foot bar together to complete the linkage process. This design is relatively Compared with other linkage mechanisms, the structure is simpler, the weight is less, and the cost is lower.

Preferably, when the stroller is in the folded state, the push handle bar and the rear leg bar are respectively attached to the two sides of the front leg bar.

Preferably, the hinge mechanism includes a first pivot shaft and a second pivot shaft arranged in parallel, the middle part of the push handle rod is hinged on the first pivot shaft through the rear support rod, and the middle part of the front foot rod is provided with a third pivot shaft. pivot, the bottom of the push handle bar is hinged on the third pivot through the front support bar, and the top of the rear foot bar is hinged on the second pivot. The advantage of this solution is that while reducing mutual interference, the moment arm of the four-bar linkage mechanism is optimized, and the stroller can be folded and folded more easily.

Preferably, the hinge mechanism further includes a support vertical bar fixed on the top of the front foot bar, the support vertical bar and the front foot bar form a T-shaped structure, and the first pivot and the second pivot are respectively located at both ends of the support vertical bar .

For a better layout of the first pivot and the second pivot, a support vertical bar is set on the top of the front foot bar. The first pivot and the second pivot are respectively located at the two ends of the support vertical bar, which can be adjusted by adjusting the support vertical bar The distance between the first pivot and the second pivot thereby adjusts the four-bar linkage.

The utility model has the following advantages:

(1) The linkage folding design of the retractable frame and the retractable linkage parts optimizes the folding process and makes it more convenient to use;

(2) The rods of the whole vehicle are connected, the structure is simple, and the stability of the product is improved while reducing parts and costs;

(3) The design of the support vertical bar can easily adjust the force arm of the four-bar linkage mechanism and the car receiving linkage to adapt to different usage conditions.

Description of drawings

Fig. 1 is the schematic diagram of the overall folded baby trolley of the present embodiment;

FIG. 2 is a schematic diagram of folding the stroller as a whole in FIG. 1 .

detailed description

The specific embodiment of the utility model is described below in conjunction with the accompanying drawings.

As shown in Fig. 1 and Fig. 2, a kind of overall folding baby trolley comprises front foot bar 104, rear foot bar 105 and push handle bar 101, and the top of front foot bar 104 and rear foot bar 105 is connected by hinge mechanism swing, front foot bar 104 and A front support bar 103 and a rear support bar 102 are connected between the push handle bars 101 to form a foldable vehicle frame; a car receiving linkage is connected between the front foot bar 104 and the rear foot bar 105, and the rear support bar 102 is provided with a driving car closing linkage. The driver 107 deformed, the driver 107 is rod-shaped, one end is hinged with the rear support rod 102, and the other end is connected with the car linkage.

The car linkage is a deformable link mechanism, which is a first link 109 and a second link 108 successively hinged between the front foot bar 104 and the rear foot bar 105, and the driving rod is hinged on the first link. On the rotating shaft 110 between the rod 109 and the second connecting rod 108 .

When the baby stroller is in the folded state, the push handle bar 101 and the rear foot bar 105 are respectively attached to both sides of the front foot bar 104 . The hinge mechanism includes a first pivot 111 and a second pivot 112 arranged in parallel, the middle part of the push handle bar 101 is hinged on the first pivot 111 through the rear support bar 102, and the middle part of the front foot bar 104 is provided with a third pivot, The bottom of the push handle bar 101 is hinged on the third pivot through the front support bar 103, and the top of the rear foot bar 105 is hinged on the second pivot shaft 112. The hinge mechanism also includes a support vertical bar 106 fixed on the top of the front foot bar 104. The vertical bar 106 and the front leg bar 104 form a T-shaped structure, and the first pivot 111 and the second pivot 112 are respectively located at two ends of the supporting vertical bar 106 .

The usage process is as follows:

During the folding operation, release the locking mechanism, push the push handle bar 101 forward, and drive the four-bar linkage mechanism composed of the push handle bar 101, the front support bar 103, the rear support bar 102 and the front foot bar 104 to fold, and the rear support bar 102 moves At this time, the driving member 107 hinged on the rear support rod 102 will act on the vehicle closing linkage composed of the first connecting rod 109 and the second connecting rod 108, thereby synchronously folding the rear foot rod 105 to complete the folding of the whole vehicle.

The unfolding process can be reversed.

The above descriptions are only preferred embodiments of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (6)

1. A baby stroller that is folded as a whole, comprising a front foot bar, a rear foot bar and a push handle bar, it is characterized in that the tops of the front foot bar and the rear foot bar are swingingly connected by a hinge mechanism, and the front foot bar and the push handle bar are connected There are front support rods and rear support rods, which form a foldable vehicle frame; a car receiving linkage is connected between the front foot rod and the rear foot rod, and a driving member that drives the deformation of the car receiving linkage is provided on the rear support rod; The hinge mechanism includes a first pivot and a second pivot arranged in parallel, the middle part of the push handle rod is hinged on the first pivot through the rear support rod, and the middle part of the front foot rod is provided with a third pivot, The bottom of the push handle bar is hinged on the third pivot through the front support bar, and the top of the rear foot bar is hinged on the second pivot; The hinge mechanism also includes a support vertical bar fixed on the top of the front foot bar, the support vertical bar and the front foot bar form a T-shaped structure, and the first pivot and the second pivot are respectively located at two ends of the support vertical bar. 2 . The integrally foldable baby trolley according to claim 1 , wherein the driving member is rod-shaped, one end of which is hinged to the rear support rod, and the other end is connected to the linkage for retracting the cart. 3 . 3 . The integrally foldable baby trolley according to claim 2 , wherein the retractable linkage is a deformable link mechanism. 4 . 4 . The integrally foldable baby trolley according to claim 3 , wherein the link mechanism is a first link and a second link sequentially hinged between the front leg bar and the rear leg bar. 5 . The integrally foldable baby trolley according to claim 4 , wherein the driving rod is hinged on a rotating shaft between the first connecting rod and the second connecting rod. 5 . 6 . The integrally foldable baby trolley according to claim 5 , wherein when the baby stroller is in a folded state, the push handle bar and the rear foot bar are respectively attached to two sides of the front foot bar. 6 .