CN210174950U - Support for baby carriage frame and baby carriage frame with same - Google Patents

Abstract

The utility model discloses a support for a baby carriage frame and a baby carriage frame with the support, wherein the support comprises a handle, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a rear foot, and the support is formed into two four-bar mechanisms which are connected up and down; the baby carriage frame comprises a support, a front foot and a linkage mechanism, wherein the rear end of the support is pivoted to the front foot of the support, one side of the linkage mechanism is connected to the front foot, the other side of the linkage mechanism is connected to the support, when the support is folded, the linkage mechanism drives the front foot to rotate towards the support, and due to the characteristics of a four-bar linkage mechanism and the arrangement of the linkage mechanism, in the process of folding the baby carriage frame, all components of the baby carriage frame are smoothly linked, the folding operation is very easy and effortless, the folding back material volume is very small, and the storage and the transportation are convenient.

Description

Support for baby carriage frame and baby carriage frame with same

Technical Field

The utility model relates to an infant's product field especially relates to perambulator.

Background

With the wide use of the stroller, the functional requirements of people on the stroller are higher and higher, so that the stroller is comfortable and safe for infants, and is more expected to be easily folded when not in use, and the folded stroller has smaller volume and is convenient to store and transport.

The stroller generally includes a frame that can be converted between an unfolded use state and a folded state, and different strollers have different frame structures, so that during the folding process, the components of some strollers are not smoothly linked, and the volume of the folded stroller is larger.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a folding in-process linkage is smooth and easy and folding back volume of material is less be used for the support of baby carriage frame and be equipped with the baby carriage frame of this support.

In order to achieve the above object, the utility model adopts the following technical scheme:

the support for the frame of the baby carriage comprises a hand, a first connecting rod, a second connecting rod, a third connecting rod, a fourth connecting rod and a rear foot, wherein the upper side of the first connecting rod is pivoted to the hand through a first pivot, the lower side of the first connecting rod is pivoted with the upper side of the third connecting rod, the second connecting rod is pivoted with the third connecting rod in a crossed mode through a second pivot, the upper side of the second connecting rod is pivoted with the hand through a third pivot, the lower side of the second connecting rod is pivoted with the upper side of the fourth connecting rod through a fourth pivot, the lower side of the third connecting rod is pivoted with the rear foot through a fifth pivot, the lower side of the fourth connecting rod is pivoted with the rear foot through a sixth pivot, the third pivot is located on the front side of the first pivot, and the fifth pivot is located on.

A baby carriage frame comprises the support, a front foot and a linkage mechanism, wherein the rear side of the linkage mechanism is pivoted to the front foot of the support, the linkage mechanism can be used for linking the front foot to rotate towards the support when the support is folded, one side of the linkage mechanism is connected to the front foot, and the other side of the linkage mechanism is connected to the support.

The linkage mechanism comprises a linkage rod, the front side of the linkage rod is pivoted to the front foot, and the rear side of the linkage rod is pivoted to the rider, the first connecting rod, the second connecting rod, the third connecting rod or the fourth connecting rod.

The rear side of the linkage rod is pivoted to the fourth connecting rod through a ninth pivot, and the ninth pivot is located between the fourth pivot and the sixth pivot or located on the lower side of the sixth pivot.

The linkage mechanism comprises a first linkage rod, a second linkage rod and a third linkage rod, the second linkage rod is pivoted to the rear foot through a pivot in a crossed mode, the rear side of the first linkage rod and one side of the third linkage rod are respectively pivoted to the two sides of the second linkage rod, the front side of the first linkage rod is pivoted with the front foot, and the other side of the third linkage rod is pivoted with the driver, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod.

The second linkage rod is pivoted with the rear foot in a crossed mode through a tenth pivot, the rear side of the first linkage rod is pivoted to one side of the second linkage rod through a ninth pivot, one side of the third linkage rod is pivoted to the other side of the second linkage rod through an eleventh pivot, the other side of the third linkage rod is pivoted to the third connecting rod through a twelfth pivot, and the twelfth pivot is located between the second pivot and the fifth pivot; or, the other side of the third link rod is pivoted to the fourth link rod through a twelfth pivot, and the twelfth pivot is located between the fourth pivot and the sixth pivot.

The linkage mechanism comprises a first linkage rod, a second linkage rod and a third linkage rod, the front side of the first linkage rod is pivoted to the front foot, one side of the second linkage rod is pivoted to the rear foot, one side of the third linkage rod is pivoted with the rear side of the first linkage rod and the other side of the second linkage rod, and the other side of the third linkage rod is pivoted with the handlebar, the first connecting rod, the second connecting rod, the third connecting rod or the fourth connecting rod.

The upper side of the third linkage rod is pivoted with the third linkage rod through a tenth pivot, the lower side of the third linkage rod is pivoted with the rear side of the first linkage rod and the front side of the second linkage rod, and the tenth pivot is positioned between the second pivot and the fifth pivot; or the front side of the third linkage rod is mutually pivoted with the rear side of the first linkage rod and the front side of the second linkage rod, the rear side of the third linkage rod is pivoted with the fourth linkage rod through an eleventh pivot, and the eleventh pivot is positioned between the fourth pivot and the sixth pivot.

The linkage mechanism comprises a first linkage rod and a second linkage rod, the front side of the first linkage rod is pivoted to the front foot, one side of the second linkage rod and the rear side of the second linkage rod can be pivoted to the rear foot in a linkage mode and can move relative to the rear foot, and the other side of the second linkage rod is pivoted to the driver, the first connecting rod, the second connecting rod, the third connecting rod or the fourth connecting rod.

The other side of the second linkage rod is pivoted to the third linkage rod through a ninth pivot, and the ninth pivot is located between the second pivot and a fifth pivot; or, the other side of the second linkage rod is pivoted to the fourth linkage rod through a ninth pivot, and the ninth pivot is located between the third pivot and the fifth pivot; preferably, the linkage mechanism further comprises a sliding seat which can be connected to the rear foot in a relatively back-and-forth moving manner, and the rear side of the first linkage rod and one side of the second linkage rod are pivoted on the sliding seat; or the rear side of the first linkage rod and one side of the second linkage rod are movably pivoted on the rear foot together through a pivot; or the rear side of the first linkage rod can be pivoted to the rear foot relatively to the front and back movement, and one side of the second linkage rod is pivoted to the first linkage rod; or one side of the second linkage rod can be pivoted to the rear foot relatively to the front-back movement, and the rear side of the first linkage rod is pivoted to the second linkage rod.

The utility model has the advantages that:

due to the structure of the bracket, the bracket is formed into two four-bar mechanisms which are pivoted with each other, and due to the characteristics of the four-bar mechanisms, when the bracket is folded, only one rod piece of the bracket needs to be rotated randomly, other rod pieces can be linked and rotated to move until the rod pieces of the bracket are close to each other, so that the two four-bar mechanisms are folded, namely the bracket is folded, all components of the bracket are linked very smoothly in the folding process, and the whole bracket can be in a relatively flat state after being folded due to the characteristics of the four-bar mechanisms, so that the volume of the folded bracket is very small; the frame of the baby carriage is provided with the bracket and the linkage mechanism, so that when the bracket is folded, the linkage mechanism can drive the front feet to rotate towards the bracket, and the linkage of each component of the frame of the baby carriage is very smooth; and because the support can be relatively flat after being folded, the front leg still rotates to be close to the support, so that the whole volume of the folded baby carriage frame is very small, and the folded baby carriage frame is convenient to store and take.

Drawings

Fig. 1 is a schematic plan view of a stroller according to a first embodiment of the present invention in an unfolded state;

fig. 2 is a schematic plan view of the stroller of the present invention in a folding process according to a first embodiment;

fig. 3 is a schematic plan view of the stroller of the first embodiment of the present invention in a folded state;

fig. 4 is a schematic plan view of a second embodiment of the stroller of the present invention in an expanded state;

fig. 5 is a schematic plan view of a stroller in a deployed state according to a third embodiment of the present invention;

fig. 6 is a schematic plan view of a stroller according to a third embodiment of the present invention in a folding process;

fig. 7 is a schematic plan view of a stroller according to a third embodiment of the present invention in a folded state;

fig. 8 is a schematic plan view of a fourth embodiment of the stroller of the present invention in an expanded state;

fig. 9 is a schematic plan view of a stroller according to a fourth embodiment of the present invention in a folding process;

fig. 10 is a schematic plan view of a fourth embodiment of the stroller of the present invention in a folded state;

fig. 11 is a schematic plan view of a fifth embodiment of the stroller of the present invention in an expanded state;

fig. 12 is a schematic plan view of a fifth embodiment of the stroller of the present invention in a folding process;

fig. 13 is a schematic plan view of a fifth embodiment of the stroller of the present invention in a folded state;

fig. 14 is a schematic plan view of a sixth embodiment of the stroller of the present invention in a deployed state;

fig. 15 is a schematic plan view of a stroller according to a sixth embodiment of the present invention in a folding process;

fig. 16 is a schematic plan view of a stroller according to a sixth embodiment of the present invention in a folded state;

fig. 17 is a schematic plan view of a seventh embodiment of the stroller of the present invention in a deployed state;

fig. 18 is a schematic plan view of a seventh embodiment of the stroller of the present invention in a folding process;

fig. 19 is a schematic plan view of a stroller according to a seventh embodiment of the present invention in a folded state.

Detailed Description

As shown in fig. 1, 2 and 3, in this embodiment, the bracket 10 of the present invention includes a rider 1, a first link 2, a second link 3, a third link 4, a fourth link 5 and a rear leg 6, wherein an upper side of the first link 2 is pivoted to the rider 1 through a first pivot 21, and a lower side of the first link is pivoted to an upper side of the third link 4, the second link 3 is pivoted to the third link 4 through a second pivot 31, an upper side of the second link 3 is pivoted to the rider 1 through a third pivot 32, a lower side of the second link is pivoted to an upper side of the fourth link 5 through a fourth pivot 33, a lower side of the third link 4 is pivoted to the rear leg 6 through a fifth pivot 41, a lower side of the fourth link 5 is pivoted to the rear leg 6 through a sixth pivot 51, the third pivot 32 is located in front of the first pivot 21, and the fifth pivot 41 is located in front of the sixth pivot 51.

The support 10 so sets up, and its driver 1, first connecting rod 2, second connecting rod 3, third connecting rod 4 form a four-bar linkage, second connecting rod 3, third connecting rod 4, fourth connecting rod 5, back foot 6 form a four-bar linkage, promptly the utility model discloses support 10 forms two four-bar linkage of mutual pin joint. Therefore, when the support 10 is to be folded, due to the characteristics of the four-bar linkage mechanism, only one rod piece of the support 10 needs to be rotated at will, and other rod pieces are linked to rotate and move until the rod pieces of the support 10 are close to each other, so that the folding of the two four-bar linkage mechanisms is realized, and the folding of the support 10 is realized. Specifically, if the rider 1 is rotated backward and downward toward the rear leg 6, the first link 2 and the second link 3 will rotate and move downward to be close to the rear leg, the third link 4 will rotate backward to be close to the rear leg 6 using the fifth pivot 41 as a rotation point, and the fourth link 5 will rotate backward to be close to the rear leg 6 using the sixth pivot 51 as a rotation point, so that the components of the support 10 are smoothly linked during the folding process, and the whole support 10 will be in a relatively flat state after being folded due to the characteristics of the four-bar linkage mechanism, so that the volume of the support 10 after being folded is very small.

The utility model discloses baby carriage frame includes support 10, rear side pivot connect in preceding foot 20, one of support 10 can the linkage when the support is folded preceding foot 20 is towards the rotatory link gear of support 10, link gear one side connect in preceding foot 20, the opposite side is connected support 10. So that when the support 10 is folded, the linkage mechanism drives the front foot 20 to rotate towards the support 10, so that the frame is folded.

The rear side of the front foot 20 is pivoted to the third connecting rod 4 or the rear foot 6 through a seventh pivot (not shown); alternatively, the rear side of the front leg 20, the lower side of the third link 4, and the front side of the rear leg 6 are pivotally connected by the fifth pivot 41.

First embodiment

As shown in fig. 1, in the present embodiment, the linkage mechanism 30-1 includes a linkage rod 3011, the linkage rod 3011 is pivoted to the front foot 20 at the front side, and is pivoted to the rider 1, the first link 2, the second link 3, the third link 4, or the fourth link 5 at the rear side.

In this embodiment, preferably, the front side of the linkage rod 3011 is pivoted to the front foot 20 through an eighth pivot 3012, and the eighth pivot 3012 is located at the front side of the fifth pivot 41 or at the front side of the seventh pivot.

The linkage rod 3011 is pivoted to the fourth link 5 through a ninth pivot 3013 at the rear side, and the ninth pivot 3013 is located between the fourth pivot 33 and the sixth pivot 51.

When the support 10 is folded, the rider 1 can be rotationally moved towards the rear foot 6 from the lower back, the first connecting rod 2, the second connecting rod 3, the third connecting rod 4 and the fourth connecting rod 5 can all be driven to rotationally move towards the direction close to the rear foot 6, so that the rear side of the linkage rod 3011 is also driven to rotationally move backwards by the fourth connecting rod 5, the front side of the linkage rod 3011 can pull the front foot 20 to rotationally move backwards to be close to the rear foot 6 (as shown in fig. 2), until the rider 1, the first connecting rod 2, the second connecting rod 3, the third connecting rod 4, the fourth connecting rod 5, the front foot 20 and the linkage rod 3011 are rotationally close to the rear foot 6, the frame is completely folded (as shown in fig. 3), and therefore all components of the frame are smoothly linked, and the volume of the folded frame is small.

When the frame is arranged like this, the fourth link 5, the rear leg 6, the front leg 20 and the linkage rod 3011 also form a four-bar mechanism, so that the frame of the baby carriage is formed into a four-bar structure with three pivoted phases. By the arrangement, when the bicycle frame is folded, all components of the bicycle frame can be smoothly linked, and the volume of the folded bicycle frame is smaller.

In other embodiments, the eighth pivot 3012 can also be located behind the fifth pivot 41 or behind the seventh pivot. So that when the frame is folded, the front leg 20 is pivotally moved forward and upward and then pivotally moved backward to be close to the rear leg 6.

In other embodiments, the linkage rod 3011 may also be pivoted together with the lower side of the second link 3 and the upper side of the fourth link 5 through the fourth pivot 33, so that the linkage rod 3011 is pulled to rotate backwards during the frame folding process, so that the front leg 20 is also pulled to rotate closer to the rear leg 6.

Similarly, the linkage rod 3011 may be pivoted to another suitable position on the rider 1, the first link 2, the second link 3, the third link 4, or the fourth link 5, as long as the linkage rod 3011 can be driven backward during the folding process of the support.

Second embodiment

As shown in fig. 4, in the present embodiment, the linkage mechanism 30-2 is different from the first embodiment in the connection of the linkage rod 3021 to the fourth link 5. In this embodiment, the rear side of the linkage rod 3021 is pivotally connected to the fourth link 5 through a ninth pivot 3022, and the ninth pivot 3022 is located at the lower side of the sixth pivot 51.

Preferably, the lower end of the fourth link 5 extends out of the lower side of the rear foot 6, and the rear side of the first linkage rod 3021 is pivotally connected to the lower end of the fourth link 5 through the ninth pivot 3022.

In this embodiment, the portion of the fourth link 5 extending out of the lower side of the rear leg 6 is configured to be an arc shape extending downward and forward, so that during the folding process of the frame, a greater pulling force can be applied to the front leg 20, and the linkage of the front leg 20 is smoother. In other embodiments, other suitable shapes are possible.

With this arrangement, the fourth link 5, the rear leg 6, the front leg 20 and the linkage rod 3021 are also formed as a four-bar linkage, so that the frame of the stroller is also formed as three pivotally connected four-bar linkages.

Similarly, when the frame is folded, the rider 1 is rotationally moved in a direction toward the rear leg 6 toward the rear lower side, the first connecting rod 2, the second connecting rod 3, the third connecting rod 4 and the fourth connecting rod 5 can all be driven to rotationally move in a direction toward the rear leg 6, and the fourth connecting rod 5 can pull the rear side of the linkage rod 3021 to rotationally move upward in the process of rotationally moving, so that the front leg 20 is linked with the front side of the linkage rod 3021 to rotationally move backward toward the rear leg 6 until the rider 1, the first connecting rod 2, the second connecting rod 3, the third connecting rod 4, the fourth connecting rod 5 and the front leg 20 are rotationally close to the rear leg 6, and the frame is completely folded (not shown), so that all components are smoothly linked in the frame folding process, and the volume of the folded frame is small due to the characteristic of a four-bar linkage mechanism.

Third embodiment

As shown in fig. 5 to 7, the stroller frame of the present embodiment is different from the first embodiment in the arrangement of the link mechanism 30-3. In this embodiment, the linkage mechanism 30-3 includes a first linkage rod 3031, a second linkage rod 3032, and a third linkage rod 3033, the second linkage rod 3022 is pivotally connected to the rear leg 6 in a cross manner by a pivot, a rear side of the first linkage rod 3021 and one side of the third linkage rod 3033 are respectively pivotally connected to two sides of the second linkage rod 3022, a front side of the first linkage rod 3021 is pivotally connected to the front leg 20, and the other side of the third linkage rod 3033 is pivotally connected to the rider 1, the first linkage rod 2, the second linkage rod 3, or the third linkage rod 3034.

In this embodiment, preferably, the front side of the first linkage rod 3031 is pivotally connected to the front leg 20 through an eighth pivot 3034, the eighth pivot 3034 is located at the front side of the fifth pivot 41 or the seventh pivot,

the second linkage rod 3032 is pivoted with the rear foot 6 in a crossed manner through a tenth pivot 3036, the rear side of the first linkage rod 3031 is pivoted to one side of the second linkage rod 3032 through a ninth pivot 3035, one side of the third linkage rod 3033 is pivoted to the other side of the second linkage rod 3032 through an eleventh pivot 3037, and the other side of the third linkage rod 3033 is pivoted to the third link rod 4 through a twelfth pivot 3038.

Preferably, the tenth pivot 3036 is located between the fifth pivot 41 and the sixth pivot 51, so that the first linkage rod 3021, the second linkage rod 3032 and the third linkage rod 3033 do not need to be too long, and the overall frame looks more compact and has a smaller volume after being folded.

Preferably, the twelfth pivot 3038 is located between the second pivot 31 and the fifth pivot 41. So that the third link lever 3033 does not need to be set too long and the second link lever 3032 is also pushed more easily.

In this embodiment, the second linkage rod 3032 is V-shaped, and includes a first connecting rod and a second connecting rod, one end of the first connecting rod is connected to one end of the second connecting rod, and the connected end of the first connecting rod and the second connecting rod is pivoted to the rear leg 6 through the tenth shaft 3036, the rear side of the first linkage rod 3031 is pivoted to the front end of the first connecting rod, and one side of the third linkage rod 3033 is pivoted to the rear side of the second connecting rod.

In other embodiments, the second linkage rod 3032 may be provided in other suitable shapes.

When the bicycle frame is folded, the rider 1 is rotationally moved towards the rear foot 6 to the rear lower side, the first connecting rod 2, the second connecting rod 3, the third connecting rod 4 and the fourth connecting rod 5 can be all driven to rotationally move towards the direction close to the rear foot 6, the third connecting rod 4 can force the third connecting rod 3033 to move backwards in the process of rotationally moving towards the rear lower side, so that the second connecting rod 3032 is pushed to rotate around the tenth pivot 3036 relative to the rear foot, namely, the connecting ends of the second connecting rod 3032 and the third connecting rod 3033 rotate backwards and downwards, the connecting ends of the second connecting rod 3032 and the first connecting rod 303 rotate upwards, so that the rear end of one connecting rod 3021 is also rotationally moved upwards, so that the front foot 20 is pulled by the front side of the first connecting rod 3021 to rotationally move towards the rear foot 6 (as shown in fig. 6) until the rider 1, the first connecting rod 2, the second connecting rod 3 and the first connecting rod 3021 are rotationally moved upwards, The third connecting rod 4, the fourth connecting rod 5 and the front foot 20 are relatively close to the rear foot 6, and the frame is folded (as shown in figure 7).

In other embodiments, the eighth pivot 3034 may also be located behind the fifth pivot 41 or the seventh pivot.

In other embodiments, the other side of the third link 3033 may also be pivoted together with the second and third links 3 and 4 by the second pivot 31; or the other side of the third link 3033 can be pivoted with the lower side of the second link 2 and the upper side of the third link 4 together through a pivot. That is, the other side of the third link 3033 can be pivoted to the rider 1, the first link 2, the second link 3 or the third link 4 at any suitable position, because during the folding process of the support, the rider 1, the first link 2, the second link 3 and the third link 4 can rotate downward, so that the second link 3032 is forced to rotate relative to the rear foot 6 by the third link 3033 with the tenth pivot 3036 as a rotation point, and the front foot 20 is driven to rotate towards the rear foot 6 by the first link 3011.

Fourth embodiment

As shown in fig. 8 to 10, the difference between the stroller frame of the present embodiment and the fourth embodiment is the arrangement of the third link 3043 of the link mechanism 30-4, in the present embodiment, one side of the third link 3043 is pivoted to the other side of the second link 3042, the other side of the third link 3043 is pivoted to the fourth link 5 by a second pivot 3048, and the twelfth pivot 3048 is located between the fourth pivot 33 and the sixth pivot 51.

Therefore, in the process of folding the support 10, the fourth link 5 pulls the other side of the third link 3043 to move backward, thereby pulling the second link 3042 to rotate around the tenth pivot 3046 relative to the rear foot 6, so that the front foot 20 is pulled by the front side of the first link 3041 to move rotationally toward the rear foot 6 (as shown in fig. 9), until the rider 1, the first link 2, the second link 3, the third link 4, the fourth link 5, and the front foot 20 all relatively move close to the rear foot 6, and the frame is folded (as shown in fig. 10).

In other embodiments, the twelfth pivot 3048 may also be located below the sixth pivot 51; or, the rear side of the third link 3043 and the upper side of the fourth link 5 are both pivotally connected to the lower side of the second link 3 via the fourth pivot 33.

Fifth embodiment

As shown in fig. 11 to 13, the stroller frame of the present embodiment is different from the first embodiment in the arrangement of the link mechanism 30-5. In this embodiment, the linkage mechanism 30-5 includes a first linkage rod 3051, a second linkage rod 3052 and a third linkage rod 3053, the front side of the first linkage rod 3051 is pivoted to the front leg 20, one side of the second linkage rod 3052 is pivoted to the rear leg 6, one side of the third linkage rod 3053 is pivoted to the rear side of the first linkage rod 3051 and the other side of the second linkage rod 3052, and the other side of the third linkage rod 3053 is pivoted to the handlebar 1 or the first linkage rod 2 or the second linkage rod 3 or the third linkage rod 4. One side of the third linkage bar 3053 is pivoted with the rear side of the first linkage bar 3051 and the other side of the second linkage bar 3052, that is, the rear side of the first linkage bar 3051, the other side of the second linkage bar 3052 and one side of the third linkage bar 3053 can be pivoted together through a pivot, or both of them can be connected through a pivot, and the other one of them is pivoted through another pivot.

In this embodiment, preferably, the front side of the first linkage rod 3051 is pivoted to the front leg 20 through an eighth pivot 3054, and the eighth pivot 3054 is located at the front side of the fifth pivot 41 or the seventh pivot.

Preferably, the third link 3053 is pivotally connected to the third link 4 at an upper side thereof via a tenth pivot 3056, and the lower side thereof is pivotally connected to the rear side of the first link 3051 and the front side of the second link 3052, and the tenth pivot 3056 is located between the second pivot 31 and the fifth pivot 41, so that the third link 3053 does not need to be too long and can easily push the first and second links 3051 and 3052.

When the frame is folded, the driver 1 is rotationally moved towards the rear foot 6 from the rear lower side, the first connecting rod 2, the second connecting rod 3, the third connecting rod 4 and the fourth connecting rod 5 can be all driven to rotationally move towards the direction close to the rear foot 6, so that the third connecting rod 3053 can be forced to move downwards, the connecting side of the first connecting rod 3051 and the second connecting rod 3052 is pushed to rotationally move downwards, the front foot 20 is pulled to rotationally move towards the rear foot 6 (as shown in fig. 12), until the driver 1, the first connecting rod 3052, the second connecting rod 3053, the third connecting rod 4, the fourth connecting rod 5 and the front foot 20 are rotationally close to the rear foot 3056, the first connecting rod 3051, the second connecting rod 3052 and the third connecting rod 3053 are also rotationally close to each other, and the frame is folded (as shown in fig. 13). Therefore, all the components of the frame can be linked smoothly, and the volume of the folded frame is small.

In other embodiments, the eighth pivot 3054 can be disposed at the rear side of the fifth pivot 41 or the seventh pivot, so that when the connecting side of the first linkage bar 3051 and the second linkage bar 3052 rotates downward, the front foot 20 is pulled to rotate forward and upward and then backward and downward to be close to the rear foot 6.

The rear side of the second linkage rod 3052 is pivotally connected to the rear leg 6 through a ninth pivot 3055, and preferably, the ninth pivot 3055 is located between the fifth pivot 41 and the sixth pivot 51, so that the first linkage rod 3021, the second linkage rod 3052 and the third linkage rod 3053 do not need to be too long, and the volume of the folded material is small.

In other embodiments (not shown), the upper side of the third link 3053 may also be pivoted together with the second and third links 3 and 4 through the second pivot 31. Because in the process of folding the support, the rider 1, the first link 2, the second link 3 and the third link 4 can rotate downwards, so long as the other side of the third link 3053 is pivoted to any suitable position of the rider 1, the first link 2, the second link 3 or the third link 4, when the support is folded, the third link 3053 can be driven, so that the connecting side of the first link 3051 and the second link 3052 can be driven to move, and the front leg 20 is linked to rotate towards the rear leg 6.

Sixth embodiment

As shown in fig. 14 to 16, the stroller frame of the present embodiment is different from the fifth embodiment in the arrangement of the third link 3063 of the link mechanism 30-6. In this embodiment, the other side of the third link 3063 is pivotally connected to the second link 3 or the fourth link 5.

In this embodiment, the front side of the third link 3063 is pivotally connected to the rear side of the first link 3061 and the front side of the second link 3062, the rear side of the third link 3063 is pivotally connected to the fourth link 5 by an eleventh pivot 3066, and preferably, the eleventh pivot 3066 is located between the fourth pivot 33 and the sixth pivot 51.

During the folding process of the bracket 10, the fourth link 5 rotates backward to move against the rear foot 6, so that the third link 3063 is pulled to move backward, and when the third link 3063 moves backward, the connecting sides of the first link 3061 and the second link 3062 are pulled to move backward, so that the front foot 20 is pulled to rotate backward to approach the rear foot 6 (as shown in fig. 15), until the handlebar 1, the first link 2, the second link 3, the third link 4, the fourth link 5 and the front foot 20 rotate backward to approach the rear foot 6, and the frame is folded (as shown in fig. 16).

In other embodiments, the eleventh pivot 3066 can also be located on the underside of the sixth pivot 51 (not shown), such that when the fourth link 5 is rotated backward toward the rear foot 6 during folding of the stand 10, the third link 3063 is pushed upward, such that the connecting sides of the first and second links 3061 and 3062 are moved upward, and the front foot 20 is still rotated backward in a linked manner toward the rear foot 6 until the frame is folded.

Seventh embodiment

As shown in fig. 17 to 19, the difference between the present embodiment and the first embodiment lies in the arrangement of the linkage mechanism 30-7, in the present embodiment, the linkage mechanism 30-7 includes a first linkage rod 3071 and a second linkage rod 3072, the front side of the first linkage rod 3071 is pivotally connected to the front leg 20, one side of the second linkage rod 3072 and the rear side of the second linkage rod 3072 are pivotally connected to the rear leg 6 in a linkage manner and can move relative to the rear leg 6, and the other side of the second linkage rod 3072 is pivotally connected to the rider 1, the first link 2, the second link 3, the third link 4, or the fourth link 5.

The front side of the first linkage bar 3071 is pivoted to the front leg 20 by an eighth pivot 3073, and similarly, the eighth pivot 3073 may be located at the front side of the fifth pivot 41 or the seventh pivot, or located at the rear side of the fifth pivot 41 or the seventh pivot.

In this embodiment, preferably, the other side of the second link bar 3072 is pivotally connected to the third link 4 through a ninth pivot 3074, and the ninth pivot 3074 is located between the second pivot 31 and the fifth pivot 41.

When the frame is folded, the rider 1 is rotated backwards and downwards, the first connecting rod 2, the second connecting rod 3, the third connecting rod 4 and the fourth connecting rod 5 all rotate and move towards the direction that the rear foot 6 approaches, and in the process that the third connecting rod 4 rotates backwards and downwards, the rear side of the second linkage rod 3072 is forced to move backwards along the rear foot 6, so that the rear side of the first linkage rod 3071 is linked to move backwards along the rear foot 6, the front foot 20 is pulled to rotate towards the direction that the rear foot 6 approaches (as shown in fig. 18), until all the components of the support 10 and the front foot 20 approach the rear foot 6, and the frame is in a folded state (as shown in fig. 19).

In other embodiments (not shown), the other side of the second link bar 3072 is pivotally connected to the fourth link 5 by a ninth pivot shaft, and the ninth pivot shaft is located between the third pivot shaft 33 and the fifth pivot shaft 51. Therefore, when the fourth link 5 rotates backwards in the frame folding process, the second link 3072 is pulled to move backwards along the rear leg 6, so that the first link 3071 is pulled to move backwards, and the front leg 20 is driven to rotate backwards to be close to the rear leg 6.

In this embodiment, the linkage mechanism 30-7 further includes a sliding base 3075 connected to the rear leg 6 in a relatively movable manner, and the rear side of the first linkage bar 3071 and one side of the second linkage bar 3072 are pivotally connected to the sliding base 3075. Therefore, when the second linkage rod 3072 moves along the rear leg 6, the sliding base 3075 is pushed to also move along the rear leg 6, so that the first linkage rod 3071 is linked to move along the rear leg 6, thereby achieving the effect that the rear side of the first linkage rod 3071 and the side of the second linkage rod 3072 can be linked to be pivoted to the rear leg 6 and move relative to the rear leg 6. Preferably, the slide 3075 is located between the fifth pivot 41 and the sixth pivot 51, so that the first linkage bar 3071 and the second linkage bar 3072 do not need to be too long, which not only saves cost, but also makes the entire frame more compact.

In other embodiments, the rear side of the first linkage bar 3071 and one side of the second linkage bar 3072 are movably pivoted to the rear leg 6 together through a pivot (not shown); or, the back side of the first linkage rod 3071 can be pivoted to the rear foot 6 relatively to the front and back movement, and one side of the second linkage rod 3072 is pivoted to the first linkage rod; or, one side of the second linkage rod 3072 can be pivoted to the rear foot 6 in a back-and-forth movement manner relatively, and the rear side of the first linkage rod 3071 is pivoted to the second linkage rod 3072, so that the effects that the rear side of the first linkage rod 3071 and one side of the second linkage rod 3072 can be pivoted to the rear foot 6 in a linkage manner and can move relative to the rear foot 6 can also be achieved. In other embodiments, the two can be pivoted to the rear foot 6 in linkage and can move relative to the rear foot 6 in other feasible ways.

In summary, during the folding process of the stroller frame, the components of the support 10 are smoothly linked, and the front leg 20 can be driven to rotate together through the linkage mechanism 30 when the support 10 is folded, so that the components of the stroller frame of the present invention are smoothly linked; and because the two four-bar linkage pivoted brackets are relatively flat after being rotated and folded, the front foot 20 is also rotated to be close to the bracket 10, so that the overall volume of the folded baby carriage frame is very small.

The frame further includes a front wheel 40 connected to the front and lower portion of the front foot 20, and a rear wheel 50 disposed behind and below the rear foot 6 (as shown in fig. 1).

In the above description of the orientation, the front wheel 40 is located at the front, the rear wheel 50 is located at the rear, the rider 1 is located at the upper position, and the front wheel 40 and the rear wheel 50 are located at the lower position.

Claims (10)

1. A support for a stroller frame, comprising: including driver, first connecting rod, second connecting rod, third connecting rod, fourth connecting rod, back foot, first connecting rod upside passes through first pivot pin joint in driver, downside and third connecting rod upside pin joint, the second connecting rod passes through second pivot and the crossing pin joint of third connecting rod, and the second connecting rod upside passes through third pivot and driver pin joint, and the downside passes through fourth pivot and fourth connecting rod upside pin joint, third connecting rod downside passes through fifth pivot and back foot pin joint, fourth connecting rod downside passes through sixth pivot and back foot pin joint, the third pivot is located first pivot front side, the fifth pivot is located sixth pivot front side.

2. A baby carriage frame is characterized in that: the folding stand of claim 1, further comprising a front leg pivotally connected to the stand at a rear side, and a linkage capable of linking the front leg to rotate toward the stand when the stand is folded, the linkage being connected to the front leg at one side and the stand at an opposite side.

3. The stroller frame of claim 2, wherein: the linkage mechanism comprises a linkage rod, the front side of the linkage rod is pivoted to the front foot, and the rear side of the linkage rod is pivoted to the rider, the first connecting rod, the second connecting rod, the third connecting rod or the fourth connecting rod.

4. A stroller frame according to claim 3, characterized in that: the rear side of the linkage rod is pivoted to the fourth connecting rod through a ninth pivot, and the ninth pivot is located between the fourth pivot and the sixth pivot or located on the lower side of the sixth pivot.

5. The stroller frame of claim 2, wherein: the linkage mechanism comprises a first linkage rod, a second linkage rod and a third linkage rod, the second linkage rod is pivoted to the rear foot through a pivot in a crossed mode, the rear side of the first linkage rod and one side of the third linkage rod are respectively pivoted to the two sides of the second linkage rod, the front side of the first linkage rod is pivoted with the front foot, and the other side of the third linkage rod is pivoted with the driver, the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod.

6. The stroller frame of claim 5, wherein: the second linkage rod is pivoted with the rear foot in a crossed mode through a tenth pivot, the rear side of the first linkage rod is pivoted to one side of the second linkage rod through a ninth pivot, one side of the third linkage rod is pivoted to the other side of the second linkage rod through an eleventh pivot, the other side of the third linkage rod is pivoted to the third connecting rod through a twelfth pivot, and the twelfth pivot is located between the second pivot and the fifth pivot; or, the other side of the third link rod is pivoted to the fourth link rod through a twelfth pivot, and the twelfth pivot is located between the fourth pivot and the sixth pivot.

7. The stroller frame of claim 2, wherein: the linkage mechanism comprises a first linkage rod, a second linkage rod and a third linkage rod, the front side of the first linkage rod is pivoted to the front foot, one side of the second linkage rod is pivoted to the rear foot, one side of the third linkage rod is pivoted with the rear side of the first linkage rod and the other side of the second linkage rod, and the other side of the third linkage rod is pivoted with the handlebar, the first connecting rod, the second connecting rod, the third connecting rod or the fourth connecting rod.

8. The stroller frame of claim 7, wherein: the upper side of the third linkage rod is pivoted with the third linkage rod through a tenth pivot, the lower side of the third linkage rod is pivoted with the rear side of the first linkage rod and the front side of the second linkage rod, and the tenth pivot is positioned between the second pivot and the fifth pivot; or the front side of the third linkage rod is mutually pivoted with the rear side of the first linkage rod and the front side of the second linkage rod, the rear side of the third linkage rod is pivoted with the fourth linkage rod through an eleventh pivot, and the eleventh pivot is positioned between the fourth pivot and the sixth pivot.

9. The stroller frame of claim 2, wherein: the linkage mechanism comprises a first linkage rod and a second linkage rod, the front side of the first linkage rod is pivoted to the front foot, one side of the second linkage rod and the rear side of the second linkage rod can be pivoted to the rear foot in a linkage mode and can move relative to the rear foot, and the other side of the second linkage rod is pivoted to the driver, the first connecting rod, the second connecting rod, the third connecting rod or the fourth connecting rod.

10. The stroller frame of claim 9, wherein: the other side of the second linkage rod is pivoted to the third linkage rod through a ninth pivot, and the ninth pivot is located between the second pivot and a fifth pivot; or, the other side of the second linkage rod is pivoted to the fourth linkage rod through a ninth pivot, and the ninth pivot is located between the third pivot and the fifth pivot; preferably, the linkage mechanism further comprises a sliding seat which can be connected to the rear foot in a relatively back-and-forth moving manner, and the rear side of the first linkage rod and one side of the second linkage rod are pivoted on the sliding seat; or the rear side of the first linkage rod and one side of the second linkage rod are movably pivoted on the rear foot together through a pivot; or the rear side of the first linkage rod can be pivoted to the rear foot relatively to the front and back movement, and one side of the second linkage rod is pivoted to the first linkage rod; or one side of the second linkage rod can be pivoted to the rear foot relatively to the front-back movement, and the rear side of the first linkage rod is pivoted to the second linkage rod.

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