CN207257741U - Children cart frame and children trolley - Google Patents

Abstract

The utility model relates to a children's cart frame and a children's cart, wherein the children's cart frame includes a front foot bar (1), a rear foot bar (2), a handle bar (3), a sliding part (4) and a folding Mechanism, the rear foot bar is rotatably connected with the front foot bar and the handle bar respectively, the slider is arranged on the handle bar, and can slide relative to the handle bar, the retractable mechanism is rotatably connected with the slider, so that the slider When sliding relative to the handle bar, the front foot bar and the handle bar are respectively moved closer to the rear foot bar through the retracting mechanism, thereby realizing the folding of the vehicle frame. Compared with the prior art where the sliding part is arranged on the front foot bar, the rear foot bar or the connection point between the front foot bar and the rear foot bar, the utility model arranges the sliding part on the handle bar, and the height of the sliding part relative to the ground is higher , It is more convenient for the operator to apply force, and the operation of unlocking the sliding part is also more convenient and faster. For the operator who can only hold a child with one hand and only operate with one hand, this structure is more operable.

Description

Children's stroller frame and children's stroller

technical field

The utility model relates to the technical field of children's pushcarts, in particular to a frame of a children's pushcart and a children's pushcart.

Background technique

With the development of society, children's strollers have become a necessary tool for infants to travel. In addition to pursuing the basic requirements of safety and stability of children's strollers, parents are paying more and more attention to the characteristics of children's strollers that are easy to fold, small in size and easy to store. In view of this, at present, children's strollers generally have a foldable function. When in use, the stroller is unfolded, and when not in use, the stroller is folded to facilitate portability and reduce the occupied space.

There are many types of foldable child stroller frames, but most of them are complicated in structure and inconvenient to fold. Some of them must be folded with the help of instructions, which is time-consuming and laborious, and poor in practical operability; Even after being folded, the volume is still very large, which is inconvenient to place and store, and cannot meet the needs of users.

Utility model content

The purpose of the utility model is to provide a child stroller frame and a child stroller, so as to improve the operation convenience of the child stroller frame when it is folded.

In order to achieve the above purpose, the utility model provides a children's stroller frame, which includes a front foot bar, a rear foot bar, a handle bar, a sliding part and a retractable mechanism, and the rear foot bar is rotatably connected with the front foot bar and the handle bar respectively. , the slider is arranged on the handlebar and can slide relative to the handlebar, and the retractable mechanism is rotatably connected with the slider so that when the slider slides relative to the handlebar, the retractable mechanism drives the front foot bar and the hand Move the rods closer to the rear foot rods respectively, so as to realize the folding of the vehicle frame.

Further, the retractable mechanism includes a driving part, which is rotatably connected between the sliding part and the rear foot bar, so that when the sliding part slides relative to the handle bar, the driving part drives the handle bar to move closer to the rear foot bar.

Further, the retractable mechanism further includes a first link, which is rotatably connected between the driving member and the front foot bar, so that when the driving member moves, the first link drives the front foot bar to move closer to the rear foot bar.

Further, the driving member includes a rigidly connected first rod and a second rod, the end of the first rod is rotatably connected with the slider, the end of the second rod is rotatably connected with the first connecting rod, and the rear foot rod is connected with the The rigid connection points of the first rod and the second rod are rotatably connected.

Further, when the vehicle frame is in the unfolded state, the angle between the second rod and the first connecting rod is 180°.

Further, the angle between the first rod and the second rod is a right angle or an obtuse angle.

Further, when the handle bar is subjected to a downward force, the slider can slide backward along the handle bar, so that the handle bar turns downward and approaches the rear foot bar.

Further, a connecting piece is also included, the handle bar and the rear foot bar are rotatably connected at the first connecting point of the connecting piece, and the front foot bar is rotatably connected at the second connecting point of the connecting piece.

Further, the connecting piece is a plastic piece.

Further, the handle bar is "L" shaped and has a short bar and a long bar, the end of the short bar is rotatably connected to the rear foot bar, and the sliding part is arranged on the long bar.

Further, a first locking mechanism is also included. When the first locking mechanism is in a locked state, the slider is fixed relative to the handlebar; when the first locking mechanism is in an unlocked state, the slider can slide relative to the handlebar.

Further, the first locking mechanism is arranged at the connection between the sliding member and the handle bar; or, the first locking mechanism is arranged at the top grip portion of the handle bar.

Further, the handle bar includes an upper section and a lower section, and the upper section and the lower section are rotatably connected so that the upper section can be turned forward relative to the lower section and folded.

Further, it also includes a second locking mechanism. When the second locking mechanism is in the locked state, the upper section is relatively fixedly connected with the lower section; when the second locking mechanism is in the unlocked state, the upper section can be flipped forward and folded relative to the lower section.

Further, the second locking mechanism includes a sliding sleeve, the upper section and the lower section are sleeved and connected through the sliding sleeve, and the upper section and the lower section can be relatively locked or unlocked by sliding the sliding sleeve.

Further, the handle bar includes an upper section and a lower section, and the vehicle frame also includes a first locking mechanism for locking the slider and the handle bar and a second locking mechanism for locking the upper section and the lower section, and the top handle portion of the upper section is provided with The unlocking device can unlock the first locking mechanism and/or the second locking mechanism by operating the unlocking device.

Further, the unlocking device is connected with the second locking mechanism through the first flexible part, and the upper section is connected with the first locking mechanism through the second flexible part, so that when the unlocking device is operated, the second locking mechanism is pulled by the first flexible part to unlock, and After the upper section is turned over and folded relative to the lower section, the first locking mechanism is pulled by the second flexible piece to be unlocked.

Further, the unlocking device is connected with the first locking mechanism and the second locking mechanism through the flexible member, so that when the unlocking device is operated, the first locking mechanism and the second locking mechanism are pulled through the flexible member to unlock simultaneously.

Further, it also includes a seat rod group and a second connecting rod, the seat rod group is rotatably connected with the slider through the second connecting rod, so that when the slider slides relative to the handle bar, the seat rod group is driven by the second connecting rod fold.

Further, the seat rod set includes a leg rest rod, a seat rod and a back rest rod, one end of the seat rod is rotatably connected to the leg rest rod, and the other end of the seat rod is rotatably connected to the back rest rod. The two connecting rods are rotatably connected with the seat bar, so that when the slider slides relative to the handle bar, the second connecting rod drives the seat bar and the leg rest bar to move closer to the back rest bar, thereby realizing the folding of the seat bar set.

To achieve the above purpose, the utility model also provides a baby stroller, including the above-mentioned child stroller frame.

Based on the above-mentioned technical scheme, the utility model is provided with a sliding part, and the sliding part is arranged on the handle bar, and when the sliding part slides relative to the handle bar, the front foot bar and the handle bar can be driven respectively to the rear foot bar through the folding mechanism. Move closer to realize the folding of the frame. Compared with the prior art where the slider is arranged on the front foot bar, the rear foot bar, or the connection point between the front foot bar and the rear foot bar, in the embodiment of the utility model, the slider is arranged on the handle bar, and the sliding part relative to the ground The height is higher, it is more convenient for the operator to apply force, and the operation of unlocking the sliding part is also more convenient and faster. For the operator who can hold a child in one hand and can only operate with one hand, this structure is more operable.

Description of drawings

The drawings described here are used to provide a further understanding of the utility model and constitute a part of the application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is a schematic structural view of an embodiment of the frame of the children's stroller of the present invention.

Fig. 2 is a structural schematic diagram of another angle of the frame of the stroller in the embodiment of Fig. 1 .

Fig. 3 is a side view of an embodiment of the frame of the children's stroller of the present invention in an unfolded state.

Fig. 4 is a structural diagram of the first state of the frame of the stroller in the embodiment of Fig. 3 during the folding process.

Fig. 5 is a schematic structural view of the second state of the frame of the stroller in the embodiment of Fig. 3 during the folding process.

Fig. 6 is a schematic structural diagram of the third state of the frame of the stroller in the embodiment of Fig. 3 during the folding process.

Fig. 7 is a schematic structural view of the frame of the stroller in the embodiment of Fig. 3 in a fully folded state.

Fig. 8 is a side view of another embodiment of the frame of the children's stroller of the present invention in an unfolded state.

Fig. 9 is a schematic structural view of the first state of the frame of the stroller in the embodiment of Fig. 8 during the folding process.

Fig. 10 is a schematic structural diagram of the second state of the frame of the stroller in the embodiment of Fig. 8 during the folding process.

Fig. 11 is a schematic structural view of the frame of the stroller in the embodiment of Fig. 8 in a fully folded state.

In the picture:

1. Front foot bar; 2. Rear foot bar; 3. Handle bar; 31. Upper section; 32. Lower section; 4. Sliding part; 5. Driving part; 6. First connecting rod; 7. Connecting part; 8. First part 9, the second locking mechanism; 10, the unlocking device; 11, the cross bar; 12, the leg rest bar; 13, the seat bar; 14, the back rest bar; 15, the second connecting rod.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.

In describing the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "rear", "left", "right", "upper", "lower", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention. The novel and simplified descriptions do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present utility model.

As shown in Figure 1 and Figure 2, in a schematic embodiment of the children's stroller frame provided by the utility model, the children's stroller frame includes a front foot bar 1, a rear foot bar 2, a handle bar 3, a sliding Part 4 and the retractable mechanism, the rear leg rod 2 is rotatably connected with the front leg rod 1 and the handle rod 3 respectively, the sliding part 4 is arranged on the handle rod 3, and can slide relative to the handle rod 3, and the retractable mechanism is connected with the handle rod 3 The sliding part 4 is rotatably connected, so that when the sliding part 4 slides relative to the handle bar 3, the front foot bar 1 and the handle bar 3 are respectively moved closer to the rear foot bar 2 through the folding mechanism, so as to realize the folding of the vehicle frame.

In the above-mentioned exemplary embodiment, by setting the slider 4 and setting the slider 4 on the handlebar 3, when the slider 4 slides relative to the handlebar 3, the front foot bar 1 and the handle can be driven by the folding mechanism. The rods 3 are moved closer to the rear foot rods 2 respectively, so as to realize the folding of the vehicle frame. Compared with the prior art where the slider is arranged on the front foot bar, the rear foot bar or the connection point between the front foot bar and the rear foot bar, the slider is arranged on the handle bar in this embodiment, and the height of the slider relative to the ground is relatively high. High, it is more convenient for the operator to apply force, and the operation of unlocking the sliding part is also more convenient and faster. For operators who can only operate with one hand while holding a child in one hand, this structure is more operable.

Specifically, the folding mechanism includes a driving part 5, which is rotatably connected between the sliding part 4 and the rear foot bar 2, so that when the sliding part 4 slides relative to the handlebar 3, the driving part 5 drives the handle Rod 3 draws closer to rear foot rod 2.

By setting the driver 5, when the slider 4 slides relative to the handle bar 3, the slider 4 can drive the driver 5 connected to it to rotate around the connection point between the driver 5 and the rear foot bar 2, and the rotation of the driver 5 It can further drive the handle bar 3 to move closer to the rear foot bar 2, which is labor-saving and convenient; in addition, when the frame of the stroller is in the unfolded state, the driving part 5 can also support the handle bar 3 to improve the stability of the frame of the stroller. Structural strength.

Further, the folding mechanism also includes a first connecting rod 6, which is rotatably connected between the driving member 5 and the front foot bar 1, so that the first connecting rod 6 drives the front foot bar when the driving member 5 moves. 1 moves closer to the rear foot bar 2.

By arranging the first connecting rod 6, when the slider 4 slides relative to the handle bar 3, the driving part 5 can be driven to rotate, and the driving part 5 can drive the first connecting rod 6 connected thereto to rotate while the driving part 5 rotates. The rotation of 6 can further drive the front foot bar 1 to move closer to the rear foot bar 2, and then realize the folding of the vehicle frame.

In the above embodiments, there are many options for the structural form of the driving member 5, as long as its function can be realized. For example, the driving member 5 may be a triangular plate structure, and the ends of the three corners of the driving member 5 are rotatably connected to the sliding member 4 , the rear foot bar 2 and the first connecting rod 6 respectively. In another embodiment, the driving member 5 includes a first rod and a second rod rigidly connected, the end of the first rod is rotatably connected with the slider 4, and the end of the second rod is rotatably connected with the first connecting rod 6. Rotationally connected, the rear foot bar 2 is rotatably connected to the rigid connection point of the first bar and the second bar.

The driving part 5 is set as two rigidly connected rods, which can reduce the occupied space, avoid the interference between the driving part 5 and other parts of the vehicle frame, and can also reduce the total weight of the vehicle frame.

Preferably, the length of the first rod is longer than that of the second rod, so that the gap between the handlebar 3 and the rear foot rod 2 is larger, and the requirement for the inclination angle of the handlebar 3 is met.

When the vehicle frame is in the unfolded state, the angle between the second rod and the first connecting rod 6 is preferably but not limited to 180°. In this way, when folding, the driving member 5 starts to rotate and drives the first connecting rod 6 to fold upwards, without the need for the first connecting rod 6 to retreat in a direction close to the front foot bar 1 in the transverse direction, which is beneficial to reduce the pressure of the first connecting rod 6. The operating space is more operable.

The included angle between the first rod and the second rod is preferably but not limited to a right angle or an obtuse angle. The angle between the first rod and the second rod is a right angle, which can better support the handlebar 3; while the angle between the first rod and the second rod is an obtuse angle, after the slider 4 is unlocked , you can press down the handle bar 3 with less effort to realize the sliding of the slider 4 relative to the handle bar 3; and when the included angle is an obtuse angle, it is not easy to cause jamming, so that the relative sliding of the slider is smoother, effectively improving the folding s efficiency.

In each of the above-mentioned embodiments, when the frame is folded, the sliding of the slider 4 relative to the handle bar 3 can be realized through a variety of different operation modes, such as pressing down the handle bar 3 or pushing the rear foot bar 2 forward, etc. ; For the folding action of the vehicle frame, there can also be multiple forms, for example, the handle bar 3 and the front foot bar 1 can move closer to the rear foot bar 2 along the same overturning direction (such as both clockwise or counterclockwise) , It is also possible to move closer to the rear foot bar 2 along the opposite turning direction (for example, the handle bar 3 is clockwise backward, and the front foot bar 1 is counterclockwise backward).

Preferably, the handle bar 3 can make the sliding member 4 slide backward along the handle bar 3 when it receives a downward force, so that the handle bar 3 turns down and approaches the rear foot bar 2 . That is to say, the handle bar 3 moves backwards towards the rear leg bar 2 in the clockwise direction, while the front leg bar 1 approaches the rear leg bar 2 in the clockwise direction. It is the contact point of the rear wheel, relatively speaking, it is easier to exert force, and the operator exerts downward pressure on the far end of the handle bar 3, the moment arm is longer and more labor-saving; if the handle bar 3 is turned forward, it is equivalent to directly Lifting the weight of the entire vehicle frame only relies on the rear foot bar 2 and the gravity of the wheels to trigger the rotation of the folding point, which is laborious.

In addition, the frame of the stroller can also include a connecting piece 7, the handle bar 3 and the rear foot bar 2 are rotatably connected at the first connecting point of the connecting piece 7, and the front foot bar 1 is rotatably connected at the first connecting point of the connecting piece 7. Two connection points. By setting the connecting piece 7, the force can be distributed, and the gap between each connecting point can also be increased. When folding, the gap between two adjacent rods will also increase, so as to prevent the clamping operation during the folding process or the fingers of children.

Preferably, the connecting part 7 is a plastic part, which can reduce the weight while satisfying the structural strength.

In the preferred embodiment of the children's stroller frame of the present utility model, the handle bar 3 is "L" shaped, and has a short bar and a long bar, wherein the length of the short bar is relatively short, the length of the long bar is longer, and the short bar The end of the rear foot bar 2 is rotatably connected, and the slider 4 is arranged on the long bar. The handlebar 3 is set in an L-shape, which facilitates the setting of the driving part 5 and is more convenient to fold.

In another embodiment of the children's stroller frame of the present invention, the children's stroller frame further includes a first locking mechanism 8, and when the first locking mechanism 8 is in a locked state, the slider 4 is fixed relative to the handle bar 3, At this time, the slider 4 cannot slide relative to the handlebar 3; when the first locking mechanism 8 is in an unlocked state, the slider 4 can slide relative to the handlebar 3. By setting the first locking mechanism 8, the locking and unlocking of the sliding member 4 can be controlled to ensure the safety of the vehicle frame.

Preferably, the first locking mechanism 8 can be arranged at the connection between the slider 4 and the handle bar 3; or, the first locking mechanism 8 can also be arranged at the top grip part of the handle bar 3, so as to facilitate the operator operation.

In yet another embodiment of the frame of the children's stroller of the present invention, the handle bar 3 includes an upper section and a lower section, and the upper section and the lower section are rotatably connected so that the upper section can be turned forward and folded relative to the lower section. The handle bar 3 is set in the form of two sections, which can realize the three-fold structure of the vehicle frame. After folding, the volume is smaller, the space occupied is smaller, and it is more convenient to carry and store.

Further, the frame of the children's stroller also includes a second locking mechanism 9. When the second locking mechanism 9 is in the locked state, the upper section 31 and the lower section 32 are relatively fixedly connected. At this time, the upper section 31 cannot be turned over relative to the lower section 32; When the mechanism 9 is in the unlocked state, the upper section 31 can be turned forward relative to the lower section 32 and folded.

Specifically, the second locking mechanism 9 may include a sliding sleeve, and the upper section 31 and the lower section 32 are sleeved and connected through the sliding sleeve, and the upper section 31 and the lower section 32 can be relatively locked or unlocked by sliding the sliding sleeve. The locking or unlocking between the upper section 31 and the lower section 32 is realized through the sliding sleeve structure, and the structure is simple and the operation is convenient.

Based on the handle bar 3 comprising an upper section 31 and a lower section 32, the vehicle frame also includes a first locking mechanism 8 for locking the slider 4 and the handle bar 3 and a second locking mechanism 9 for locking the upper section 31 and the lower section 32, the upper section The top handle portion of 31 is provided with an unlocking device 10, and the first locking mechanism 8 and/or the second locking mechanism 9 can be unlocked by operating the unlocking device 10.

Specifically, in one embodiment, the unlocking device 10 may only be used to control the unlocking of the second locking mechanism 9 . As shown in Figures 3 to 7, it is a state change diagram of the frame of the children's stroller from unfolding to fully folding. 3 approach the rear foot bar 2 as a whole, and at the same time, the front foot bar 1 also approaches the rear foot bar 2 driven by the folding mechanism, and then unlock the second locking mechanism 9 through the unlocking device 10, and then turn the upper section 31 relative to the lower section 32 to realize Folding of the handlebar 3.

In another embodiment, the unlocking device 10 is connected with the second locking mechanism 9 through the first flexible part, and the upper section 31 is connected with the first locking mechanism 8 through the second flexible part, so that when the unlocking device 10 is operated, the first flexible The first locking mechanism 8 is unlocked by pulling the second locking mechanism 9 through the second flexible piece after the upper section 31 is flipped and folded relative to the lower section 32 .

When folding, the first flexible part is first pulled by the unlocking device 10 to unlock the second locking mechanism 9. At this time, the upper section 31 can be turned forward relative to the lower section 32 and folded. After the upper section 31 is turned over and folded in place, the upper section 31 can pull the second flexible part, so that the first locking mechanism 8 is unlocked, and now the handle bar 3 can be pressed down, so that the handle bar 3 and the front foot bar 1 are all drawn towards the rear foot bar 2, so as to realize the folding of the whole vehicle frame.

In yet another embodiment, the unlocking device 10 is connected with the first locking mechanism 8 and the second locking mechanism 9 through a flexible piece, so that when the unlocking device 10 is operated, the first locking mechanism 8 and the second locking mechanism 9 are pulled by the flexible piece. unlock.

As shown in Figures 9-11, through the unlocking device 10, the first locking mechanism 8 and the second locking mechanism 9 can be unlocked at the same time. 32 and the front foot bar 1 move closer to the rear foot bar 2, which makes the unlocking faster and the folding efficiency higher.

Of course, in other embodiments, the unlocking device 10 may also be used only to control the unlocking of the first locking mechanism 8, which will not be described in detail here.

As shown in Figure 8, the child stroller frame also includes a seat bar set and a second link 15, the seat bar set is rotatably connected with the slider 4 through the second link 15, so that when the slide 4 is relative to the handle When the rod 3 slides, the second connecting rod 15 drives the seat rod group to fold.

By arranging the second connecting rod 15, when the slider 4 slides relative to the handle bar 3, in addition to driving the handle bar 3 and the front foot bar 1 to move closer to the rear foot bar 2, it can also simultaneously drive the seat bar group to fold, Make the folding action more coherent and the folding efficiency higher.

Specifically, the seat bar set includes a leg rest bar 12, a seat bar 13 and a back rest bar 14. One end of the seat bar 13 is rotatably connected with the leg rest bar 12, and the other end of the seat bar 13 is connected to the back rest bar. The rod 14 is rotatably connected, and the second connecting rod 15 is rotatably connected with the seat rod 13, so that the seat rod 13 and the leg rest rod 12 are driven by the second connecting rod 15 when the slider 4 slides relative to the handle bar 3 The backrest bar 14 is moved closer to realize the folding of the seat bar group.

In addition, in order to ensure the overall stability of the vehicle frame, a cross bar 11 can be provided between the two front foot bars 1 on the left and right sides, and a cross bar 11 can also be provided between the two rear foot bars 2 to improve the structural stability of the vehicle frame. .

In each of the above embodiments, the rods in the frame of the children's stroller may all be solid rods to enhance the structural strength; each rod may also be a hollow pipe to reduce the overall weight of the frame.

In each of the above-mentioned embodiments, any "rotatable connection" can be made in a hinged connection, which is easy to implement and has high reliability.

Based on the above child stroller frame, the utility model also proposes a child stroller, which includes the above child stroller frame. The positive technical effects of the children's stroller frame in the above embodiments are also applicable to the children's stroller, and will not be repeated here.

The specific structure and folding process of an embodiment of the children's stroller frame and the children's stroller of the present invention will be described in detail below in conjunction with accompanying drawings 1 to 11:

As shown in Figures 1 and 2, the child stroller frame includes a front foot bar 1, a rear foot bar 2, a handle bar 3, a sliding part 4, a driving part 5, a first connecting rod 6 and a connecting part 7, wherein the handle The rod 3 includes an upper section 31 and a lower section 32, the lower section 32 of the handle bar 3 is L-shaped, and has a short rod and a long rod; the driving member 5 is also L-shaped, including a first rod and a second rod; the sliding member 4 is sleeved On the long rod of the lower section 32 of the handle bar 3, the slider 4 can slide relative to the handle bar 3; one end of the first bar of the driver 5 is rotatably connected with the slider 4, and the first bar and the second bar The connection point is rotatably connected with the rear foot rod 2, and the end of the second rod of the driving member 5 is rotatably connected with the front foot rod 1 through the first connecting rod 6, wherein the first connecting rod 6 can be connected to the middle and upper part of the front foot rod 1 The upper end of the front foot bar 1 is rotatably connected to the rear foot bar 2; the rear foot bar 2 is rotatably connected to the short bar end of the lower section 32 of the handle bar 3; At the second connection point, the rear foot bar 2 and the handle bar 3 are connected at the first connection point of the connecting piece 7 .

The first locking mechanism is arranged on the slider 4 , the second locking mechanism is arranged between the upper section 31 and the lower section 32 , and the unlocking device 10 is arranged at the top grip of the upper section 31 of the handle bar 3 to facilitate operation by the operator. The two front foot bars 1 are connected by a cross bar 11, and the handle bar 3 is U-shaped, which can form a stable vehicle frame seat space.

As shown in Figure 8, the seat bar set includes a leg rest bar 12, a seat bar 13 and a back rest bar 14, one end of the seat bar 13 is rotatably connected with the leg rest bar 12, and the other end of the leg rest bar 12 It is a free end, and the leg leaning rod 12 can be folded freely relative to the seat rod 13; the other end of the seat rod 13 is rotatably connected with the back leaning rod 14, and the other end of the back leaning rod 14 is connected with the vehicle through other connecting rods. frame connection, to ensure the fixation of the backrest bar 14; Folding; the second link 15 is rotatably connected with the seat post 13 .

As shown in Figure 3, it is a side view when the frame of the children's stroller is in the unfolded state, in which structures such as the seat bar group are omitted; as shown in Figure 4, when the first locking mechanism 8 is unlocked, the handlebar is pressed down Rod 3 can make the slider 4 slide towards the direction of the upper section 31 relative to the lower section 32 of the handle bar 3, so that the handle bar 3 can be further moved closer and folded towards the rear foot bar 2; as shown in Figure 5, the handle During the pressing process of the rod 3, the rotation of the driving member 5 can drive the first connecting rod 6 to rotate, thereby driving the front foot rod 1 to move closer and fold toward the rear foot rod 2; The state diagram after all are moved closer to the rear foot bar 2 and folded; as shown in Figure 7, when the second locking mechanism 9 is unlocked, the upper section 31 of the handle bar 3 can be further folded relative to the lower section 32, thereby realizing a three-fold structure , to realize the complete folding of the frame, the folding volume is small, easy to store and carry.

As shown in Figure 8, it is a side view of the frame of the children's stroller in an unfolded state. In this figure, the structure of the seat bar group is included; as shown in Figure 9, when the first locking mechanism 8 and the second locking mechanism 9 are simultaneously When unlocking, the upper section 31 can be flipped forward and folded. At the same time, the upper section 31 of the handle bar 3 can be pressed down to make the slider 4 slide relative to the lower section 32. The lower section 32 and the lower section 32 can be driven by the driver 5 and the first connecting rod 6. The front foot bar 1 draws closer to the rear foot bar 2 clockwise and counterclockwise respectively; at the same time, through the second connecting rod 15, the seat bar 13 and the leg rest bar 12 can be driven to move closer to the back rest bar 14 and folded; as shown in Figure 10 As shown, it is a folded state diagram in which the handle bar 3 is further pressed down, and the back rest bar 14 is also closer to the rear foot bar 2; as shown in Figure 11, it is a fully folded state view. It can be rotated relative to the seat post 13, so the operator can directly push the leg rest bar 12 to fold relative to the seat post 13 by hand.

Through the description of multiple embodiments of the children's stroller frame and the children's stroller of the present invention, it can be seen that the embodiments of the children's stroller frame and the children's stroller of the present invention have at least one or more of the following advantages:

1. The sliding part is set on the handle bar, and the height from the ground is higher. It is more convenient for the operator to apply force, and the unlocking of the sliding part is more convenient and fast;

2. The handle bar includes the upper section and the lower section, which can make the frame fold in three, and the volume is smaller after folding, which is convenient for storage and carrying;

3. By setting the unlocking device, a variety of unlocking methods can be realized, and the folding is more convenient.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit it; although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should understand that: still The specific implementation of the utility model can be modified or some technical features can be equivalently replaced; without departing from the spirit of the technical solution of the utility model, all of them should be included in the scope of the technical solution claimed by the utility model.

Claims (21)

1. A children's stroller frame, characterized in that it comprises a front foot bar (1), a rear foot bar (2), a handle bar (3), a sliding part (4) and a retractable mechanism, and the rear foot bar (2) ) are rotatably connected with the front foot bar (1) and the handle bar (3) respectively, the slider (4) is arranged on the handle bar (3), and can be relative to the hand The lever (3) is slid, and the retracting mechanism is rotatably connected with the slider (4), so that when the slider (4) slides relative to the handle lever (3), the retractable The closing mechanism drives the front foot bar (1) and the handle bar (3) to move closer to the rear foot bar (2), thereby realizing the folding of the vehicle frame. 2. The frame of the children's stroller according to claim 1, characterized in that, the folding mechanism comprises a driving part (5), and the driving part (5) is rotatably connected to the sliding part (4) and the rear foot rod (2), so that when the slider (4) slides relative to the handle rod (3), the driving member (5) drives the handle rod (3) to Described rear foot bar (2) draws close to. 3. The frame of the children's stroller according to claim 2, characterized in that, the folding mechanism further comprises a first connecting rod (6), and the first connecting rod (6) is rotatably connected to the between the driving member (5) and the front foot bar (1), so that when the driving member (5) moves, the first connecting rod (6) drives the front foot bar (1) to the rear foot bar (2) Closer. 4. The children's stroller frame according to claim 3, characterized in that, the driving member (5) comprises a rigidly connected first rod and a second rod, and the end of the first rod is in contact with the sliding rod. member (4) is rotatably connected, the end of the second rod is rotatably connected with the first link (6), and the rear foot rod (2) is connected with the first rod and the second rod The rigid connection points of the rods are rotatably connected. 5. The frame of the children's stroller according to claim 4, characterized in that, when the frame is in the unfolded state, the included angle between the second rod and the first connecting rod (6) is 180° °. 6. The stroller frame according to claim 4, wherein the angle between the first rod and the second rod is a right angle or an obtuse angle. 7. The frame of the children's stroller according to claim 1, characterized in that, when the handle bar (3) is subjected to a downward force, the sliding member (4) can move along the handle bar (3) Slide back so that the handle bar (3) flips down and close to the rear foot bar (2). 8. The frame of the children's stroller according to claim 1, further comprising a connecting piece (7), the handle bar (3) and the rear foot bar (2) are rotatably connected to the At the first connecting point of the connecting piece (7), the front foot bar (1) is rotatably connected at the second connecting point of the connecting piece (7). 9. The frame of the children's stroller according to claim 8, characterized in that, the connecting piece (7) is a plastic piece. 10. The children's stroller frame according to claim 1, characterized in that, the handle bar (3) is "L" shaped and has a short bar and a long bar, and the end of the short bar is connected to the The rear foot bar (2) is rotatably connected, and the slider (4) is arranged on the long bar. 11. The frame of the children's stroller according to claim 1, further comprising a first locking mechanism (8), when the first locking mechanism (8) is in a locked state, the sliding member (4) It is fixed relative to the handle bar (3); when the first locking mechanism (8) is in an unlocked state, the slider (4) can slide relative to the handle bar (3). 12. The frame of the children's stroller according to claim 11, characterized in that, the first locking mechanism (8) is provided at the connection between the slider (4) and the handle bar (3) or, the first locking mechanism (8) is arranged at the top grip portion of the handle bar (3). 13. The children's stroller frame according to claim 1, characterized in that, the handle bar (3) comprises an upper section (31) and a lower section (32), and the upper section (31) and the lower section (32) ) are rotatably connected so that the upper section (31) can be turned forward and folded relative to the lower section (32). 14. The stroller frame according to claim 13, further comprising a second locking mechanism (9), when the second locking mechanism (9) is in a locked state, the upper section (31) and The lower section (32) is relatively fixedly connected; when the second locking mechanism (9) is in an unlocked state, the upper section (31) can be flipped forward and folded relative to the lower section (32). 15. The stroller frame according to claim 14, characterized in that, the second locking mechanism (9) comprises a sliding sleeve, and the upper section (31) and the lower section (32) pass through the sliding sleeve If the connection is provided, the upper section (31) and the lower section (32) can be relatively locked or unlocked through the sliding of the sliding sleeve. 16. The stroller frame according to any one of claims 1-15, characterized in that the handle bar (3) includes an upper section (31) and a lower section (32), and the frame also includes a The first locking mechanism (8) for locking the slider (4) and the handle bar (3) and the second locking mechanism (9) for locking the upper section (31) and the lower section (32) ), the top handle portion of the upper section (31) is provided with an unlocking device (10), and by operating the unlocking device (10), the first locking mechanism (8) and/or the second locking mechanism can be (9) UNLOCKED. 17. The stroller frame according to claim 16, characterized in that, the unlocking device (10) is connected to the second locking mechanism (9) through a first flexible member, and the upper section (31) Connected with the first locking mechanism (8) through the second flexible piece, so that when the unlocking device (10) is operated, the second locking mechanism (9) is pulled to be unlocked by the first flexible piece, and the After the upper section (31) is turned over and folded relative to the lower section (32), the second flexible member pulls the first locking mechanism (8) to unlock. 18. The frame of the children's stroller according to claim 16, characterized in that, the unlocking device (10) is connected with the first locking mechanism (8) and the second locking mechanism (9) through a flexible piece , so that when the unlocking device (10) is operated, the first locking mechanism (8) and the second locking mechanism (9) are pulled by the flexible member to unlock simultaneously. 19. The stroller frame according to any one of claims 1-15, characterized in that it further comprises a seat rod set and a second connecting rod (15), and the seat rod set passes through the second connecting rod (15) is rotatably connected with the slider (4), so that when the slider (4) slides relative to the handle bar (3), the second connecting rod (15) drives the Seat post set folds. 20. The stroller frame according to claim 19, characterized in that, the seat bar set comprises a leg rest bar (12), a seat bar (13) and a back rest bar (14), and the seat bar One end of the rod (13) is rotatably connected with the leg rest bar (12), the other end of the seat bar (13) is rotatably connected with the back rest bar (14), and the second The connecting rod (15) is rotatably connected with the seat rod (13), so as to be driven by the second connecting rod (15) when the slider (4) slides relative to the handle rod (3). The seat bar (13) and the leg rest bar (12) move closer to the backrest bar (14), thereby realizing the folding of the seat bar set. 21. A stroller for children, characterized by comprising the frame of the stroller for children as claimed in any one of claims 1-20.