Baby stroller capable of being folded left and right

Abstract

A child stroller capable of being folded left and right comprises a stroller frame with an unfolded state and a folded state, a front wheel assembly, a rear wheel assembly, a locking device used for locking the stroller frame in the unfolded state and a supporting device arranged on the stroller frame and capable of supporting a child. The rear wheel support comprises a left support body, a right support body, a left connecting rod and a right connecting rod, the upper end of the left support body is connected with the upper end of the right support body through a first rotating shaft in a pivot mode, and when the stroller frame is in an unfolded state, the left support body and the right support body are in a regular splayed shape. The rear wheel assemblies are fixedly arranged at the lower end of the left support and the lower end of the right support respectively, one end of the left connecting rod is in pivot connection with one end of the right connecting rod through a second rotating shaft, the other end of the left connecting rod is in pivot connection with the left support, and the other end of the right connecting rod is in pivot connection with the right support.

Description

Technical Field

[0001] The utility model relates to the technical field of push carts. Background Art

[0002] A baby carriage is a very convenient means of transportation for children. Easy folding and small volume after folding for easy storage are the usage requirements of consumers for baby carriages. In the prior art, for baby carriages, either very few parts on the left and right can participate in folding or they cannot stand independently. Summary of the Invention

[0003] The purpose of the utility model is to provide a baby carriage that can be folded left and right and can stand independently, with a smaller overall volume after folding, so as to solve the problems that the traditional push cart occupies a large space after folding and is inconvenient to carry and store.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a baby carriage that can be folded left and right, including a push cart frame having an unfolded state and a folded state, a front wheel assembly, a rear wheel assembly, a locking device for locking the push cart frame in the unfolded state, and a support device arranged on the push cart frame for supporting a child. The push cart frame includes:

[0005] A rear wheel bracket, which includes: a left bracket, a right bracket, a left connecting rod, and a right connecting rod. The upper ends of the left bracket and the right bracket are pivotally connected by a first rotating shaft. When the push cart frame is in the unfolded state, the left bracket and the right bracket form a positive eight-shaped configuration. The lower ends of the left bracket and the right bracket are respectively fixed with the rear wheel assembly. One end of the left connecting rod and one end of the right connecting rod are pivotally connected by a second rotating shaft. The other end of the left connecting rod is pivotally connected with the left bracket, and the other end of the right connecting rod is pivotally connected with the right bracket;

[0006] A front rotating joint assembly, which is pivotally connected with the rear wheel bracket through the first rotating shaft;

[0007] A rear rotating joint assembly, which is pivotally connected with the rear wheel bracket through the second rotating shaft;

[0008] A front wheel bracket, the lower end of which is fixed with the front wheel assembly, and the other end of which is pivotally connected with the front rotating joint assembly through a third rotating shaft along the left-right direction;

[0009] A first connecting rod, one end of which is pivotally connected with the rear rotating joint assembly through a fourth rotating shaft along the left-right direction; the other end of the first connecting rod is pivotally connected with the front wheel bracket through a fifth rotating shaft along the left-right direction;

[0010] Push handle rod, the push handle rod includes: an upper push handle rod and a lower push handle rod, the upper push handle rod can slide along the lower push handle rod, and the lower end of the lower push handle rod is pivotally connected to the rear rotating joint assembly through a fourth rotating shaft in the left-right direction or other rotating shafts parallel thereto;

[0011] The second connecting rod, one end of the second connecting rod is pivotally connected to the push handle rod through a sixth rotating shaft in the left-right direction, and the other end of the second connecting rod is pivotally connected to the front rotating joint assembly through a third rotating shaft in the left-right direction or other rotating shafts parallel thereto.

[0012] In some embodiments, the stroller frame further includes:

[0013] A left sliding sleeve, pivotally connected to the left bracket and rotatable relative to the left bracket, and a right sliding sleeve, pivotally connected to the right bracket and rotatable relative to the right bracket;

[0014] Seat support rods, the seat support rods include a left seat support rod and a right seat support rod; when the stroller frame is in the unfolded state, the left seat support rod and the right seat support rod are in an inverted V shape, the left seat support rod is slidably arranged in the left sliding sleeve along the direction of the left seat support rod, the rear end of the left seat support rod is pivotally connected to the left connecting rod or the right connecting rod through a seventh rotating shaft, the right seat support rod is slidably arranged in the right sliding sleeve along the direction of the right seat support rod, the rear end of the right seat support rod is pivotally connected to the right connecting rod or the left connecting rod through an eighth rotating shaft; the seventh rotating shaft and the eighth rotating shaft are coaxial, and are coaxial with the second rotating shaft.

[0015] Further, the locking device is arranged between the left connecting rod and the right connecting rod, and operating the push handle rod can unlock the locking device.

[0016] In some embodiments, the first connecting rod is provided with a shock absorption device.

[0017] In some embodiments, when the stroller frame is in the folded state, the rear wheel assembly and the lower end of the push handle rod can make the stroller frame stand on its own.

[0018] Due to the adoption of the above technical solutions, for the children's stroller of the present invention, when the frame is opened and folded, the left and right directions of the frame can be opened and folded simultaneously, so that the overall size of the stroller after folding is smaller in the left and right directions, and there is no need for separate operation steps to open or fold in the left and right directions. Only need to open or fold the whole stroller, which is very simple and fast, and the structure is very simple and reliable. Description of the Drawings

[0019] Attached Figure 1 is a side view of the children's stroller in the present invention in the opened state.

[0020] Appendix Figure 2 This is a three-dimensional schematic diagram of the stroller in the present utility model when it is in the open state.

[0021] Appendix Figure 3 This is a three-dimensional schematic diagram of the stroller in the present utility model when it is in the semi-folded state.

[0022] Appendix Figure 4 This is a side view of the stroller in the present utility model when it is standing independently in the folded state.

[0023] Appendix Figure 5 This is a front view of the rear wheel bracket of the stroller in the present utility model.

[0024] The reference numerals in the figure are: 1, rear wheel bracket; 1a, left bracket; 1b, right bracket; 1c, right connecting rod; 1d, left connecting rod; 2, front rotating joint assembly; 3, rear rotating joint assembly; 4, front wheel bracket; 5, connecting rod one; 6, push handle rod; 6a, upper push handle rod; 6b, lower push handle rod; 7, connecting rod two; 8, sliding sleeve; 8a, left sliding sleeve. 8b, right sliding sleeve; 9, seat bracket rod; 9a, left seat bracket rod; 9b, right seat bracket rod; 10, third rotating shaft; 11, fourth rotating shaft; 12, first rotating shaft; 13, second rotating shaft; 14, sixth rotating shaft; 15, fifth rotating shaft; 16, front wheel assembly; 17, rear wheel assembly; 18, ninth rotating shaft; 19 tenth rotating shaft. Detailed implementation manners

[0025] The technical solution of the present utility model will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0026] The descriptions of the upper, lower, left, right, front, rear and other directions in this article are all defined according to the specific posture of the stroller during normal use. These direction words are for the convenience of description and simplification of description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, so it should not be construed as a limitation to the present invention.

[0027] From the schematic diagrams in Appendix Figure 1 to Appendix Figure 5 it can be seen that the stroller in this embodiment includes a stroller frame in the unfolded state and the folded state, a front wheel assembly 16, a rear wheel assembly 17, a locking device for locking the stroller frame in the unfolded state, and a support device provided on the stroller frame for supporting a child. There is no schematic diagram of the support device, and the support device can be a cloth bag, a child seat pocket, a carrycot, a car seat, etc.

[0028] The trolley frame includes: a rear wheel bracket 1, and the rear wheel bracket 1 includes: a left bracket 1a, a right bracket 1b, a left connecting rod 1d, a right connecting rod 1c. The upper ends of the left bracket 1a and the right bracket 1b are pivotally connected by a first rotating shaft 12. When the trolley frame is in the unfolded state, the left bracket 1a and the right bracket 1b form a positive V shape. The lower ends of the left bracket 1a and the right bracket 1b are respectively fixed with rear wheel assemblies 17. One end of the left connecting rod 1d and one end of the right connecting rod 1c are pivotally connected by a second rotating shaft 13. The other end of the left connecting rod 1d is pivotally connected to the left bracket 1a, and the other end of the right connecting rod 1c is pivotally connected to the right bracket 1b;

[0029] A front rotating joint assembly 2, and the front rotating joint assembly 2 is pivotally connected to the rear wheel bracket 1 through the first rotating shaft 12;

[0030] A rear rotating joint assembly 3, and the rear rotating joint assembly 3 is pivotally connected to the rear wheel bracket 1 through the second rotating shaft 13;

[0031] A front wheel bracket 4, the lower end of the front wheel bracket 4 is fixed with a front wheel assembly 16, and the other end of the front wheel bracket 4 is pivotally connected to the front rotating joint assembly 2 through a third rotating shaft 10 along the left - right direction;

[0032] A first connecting rod 5, one end of the first connecting rod 5 is pivotally connected to the rear rotating joint assembly 3 through a fourth rotating shaft 11 along the left - right direction; the other end of the first connecting rod 5 is pivotally connected to the front wheel bracket 4 through a fifth rotating shaft 15 along the left - right direction;

[0033] A push handle rod 6, and the push handle rod 6 includes: an upper push handle rod 6b and a lower push handle rod 6a. The upper push handle rod 6b can slide along the lower push handle rod 6a. In this embodiment, the lower end of the lower push handle rod 6a is pivotally connected to the rear rotating joint assembly 3 through a ninth rotating shaft 18 along the left - right direction and parallel to the fourth rotating shaft 11;

[0034] A second connecting rod 7, one end of the second connecting rod 7 is pivotally connected to the push handle rod 6 through a sixth rotating shaft 14 along the left - right direction. In this embodiment, the other end of the second connecting rod 7 is pivotally connected to the front rotating joint assembly 2 through a tenth rotating shaft 19 along the left - right direction and parallel to the third rotating shaft 10;

[0035] As Figure 5 shown, in this embodiment, the trolley frame further includes: a left sliding sleeve 8a, which is pivotally connected to the left bracket 1a and can rotate relative to the left bracket 1a, and a right sliding sleeve 8b, which is pivotally connected to the right bracket 1b and can rotate relative to the right bracket 1b;

[0036] Seat support rod 9, which includes a left seat support rod 9a and a right seat support rod 9b; when the stroller frame is in the unfolded state, the left seat support rod 9a and the right seat support rod 9b are in an inverted V shape. The left seat support rod 9a is slidably arranged in the left sliding sleeve 8a along the direction of the left seat support rod 9a. The rear end of the left seat support rod 9a is pivotally connected to the left connecting rod 1d or the right connecting rod 1c through a seventh rotating shaft. The right seat support rod 9b is slidably arranged in the right sliding sleeve 8b along the direction of the right seat support rod 9b. The rear end of the right seat support rod 9b is pivotally connected to the right connecting rod 1c or the left connecting rod 1d through an eighth rotating shaft; in this embodiment, the seventh rotating shaft and the eighth rotating shaft are coaxial and coaxial with the second rotating shaft 13.

[0037] The locking device is arranged between the left connecting rod 1d and the right connecting rod 1c. Operating the push handle rod 6 can unlock the locking device. The locking device is a conventional general structure and will not be introduced in detail here.

[0038] In this embodiment, the first connecting rod 5 is provided with a shock absorption device. There is no schematic diagram of the shock absorption device. The first connecting rod 5 is a rod that can extend under force and return to its original length when not under force, and will not be introduced in detail here.

[0039] As Figure 4 shown, in this embodiment, when the stroller frame is in the folded state, the rear wheel assembly 17 and the lower end of the push handle rod 6 can make the stroller frame stand on its own.

[0040] The above embodiments are only used to illustrate the technical concept and characteristics of the present invention and cannot be used to limit the protection scope of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description, such as the front wheel assembly 16 is arranged at the front end of the first connecting rod 5, the rear wheel assembly 17 is arranged on the left connecting rod 1d and the right connecting rod 1c, the second connecting rod 7 is set as the push handle, etc. It is not necessary and impossible to list all the implementation manners here. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A foldable stroller for children, comprising a stroller frame having an unfolded state and a folded state, a front wheel assembly, a rear wheel assembly, a locking device for locking the stroller frame in the unfolded state, and a supporting device arranged on the stroller frame and capable of supporting a child, characterized in that: The cart frame comprises: A rear wheel bracket, the rear wheel bracket comprising: a left bracket, a right bracket, a left connecting rod, and a right connecting rod, the upper end of the left bracket is pivotally connected to the upper end of the right bracket through a first rotating shaft, when the cart frame is in an unfolded state, the left bracket and the right bracket are in a regular eight-shaped shape, the lower ends of the left bracket and the lower ends of the right bracket are respectively fixed with the rear wheel assembly, one end of the left connecting rod is pivotally connected to one end of the right connecting rod through a second rotating shaft, the other end of the left connecting rod is pivotally connected to the left bracket, and the other end of the right connecting rod is pivotally connected to the right bracket; A front rotating joint assembly, wherein the front rotating joint assembly is pivotally connected to the rear wheel support via the first rotating shaft; a rear rotating joint assembly, the rear rotating joint assembly being pivotally connected to the rear wheel support via the second rotating shaft; A front wheel bracket, the front wheel assembly is fixedly mounted at the lower end of the front wheel bracket, and the other end of the front wheel bracket is pivotally connected to the front rotating joint assembly via a third rotating shaft along the left-right direction; A connecting rod 1, one end of which is pivotally connected to the rear rotating joint assembly via a fourth rotating shaft along the left-right direction; the other end of which is pivotally connected to the front wheel bracket via a fifth rotating shaft along the left-right direction; A push handle rod, the push handle rod comprising: an upper push handle rod and a lower push handle rod, the upper push handle rod can slide along the lower push handle rod, and the lower end of the lower push handle rod is pivotally connected to the rear rotating joint assembly via a fourth rotating shaft along the left-right direction or other rotating shafts parallel thereto; Connecting rod 2, one end of the connecting rod 2 is pivotally connected to the push handle rod via a sixth rotating shaft along the left-right direction, and the other end of the connecting rod 2 is pivotally connected to the front rotating joint assembly via a third rotating shaft along the left-right direction or other rotating shafts parallel thereto.

2. The foldable stroller according to claim 1, characterized in that: The cart frame also includes: A left sliding sleeve is pivotally connected to the left bracket and is rotatable relative to the left bracket; a right sliding sleeve is pivotally connected to the right bracket and is rotatable relative to the right bracket; A seat support rod, the seat support rod comprises a left seat support rod and a right seat support rod; when the cart frame is in the unfolded state, the left seat support rod and the right seat support rod are in an inverted eight-shape, the left seat support rod is arranged in the left sliding sleeve and can slide along the direction of the left seat support rod, the rear end of the left seat support rod is pivotally connected to the left connecting rod or the right connecting rod through a seventh rotating shaft, the right seat support rod is arranged in the right sliding sleeve and can slide along the direction of the right seat support rod, the rear end of the right seat support rod is pivotally connected to the right connecting rod or the left connecting rod through an eighth rotating shaft; the seventh rotating shaft is coaxial with the eighth rotating shaft or the second rotating shaft.

3. The foldable stroller according to claim 1, characterized in that: The locking device is arranged between the left connecting rod and the right connecting rod, and the locking device can be unlocked by operating the push handle rod.

4. The left-right foldable stroller according to claim 1, characterized in that: The connecting rod may be provided with a shock absorbing device.

5. The left-right foldable stroller according to claim 1, characterized in that: When the pushcart frame is in a folded state, the rear wheel assembly and the lower end of the push handle can enable the pushcart frame to be self-standing.

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