Carrier

Abstract

The invention discloses a carrier, belongs to the technical field of children products, and aims to solve the problems that an existing carrier is still large in size after being folded, inconvenient to carry and store and the like. The carrier provided by the invention comprises a frame, a seat frame and a push handle linkage piece, wherein the frame comprises a front bracket, a rear bracket and a push handle which are arranged in a relatively rotating manner; the seat frame comprises a front seat plate, a rear seat plate rotationally connected with the front seat plate and a supporting piece for supporting the front seat plate, and the supporting piece is rotationally installed on the front support or the rear support along a rotating shaft extending in the left-right direction. The push handle linkage piece is arranged on the push handle and is movably connected with the rear seat plate; when the push handle is folded towards the rear support, the push handle drives the rear seat plate to move through the push handle linkage piece, the rear seat plate drives the front seat plate to move and enables the supporting piece to rotate towards the direction close to the front support, and therefore the front seat plate and the rear seat plate are oppositely folded. By means of the structure, the carrier is neat and compact in overall structure after being folded, small in occupied space, convenient to store at home and carry outside, and good in use experience.

Description

Technical Field

[0001] This invention relates to the field of children's products technology, and more particularly to a carrier. Background Technology

[0002] Strollers are widely used as a very convenient means of transportation for children. Most existing strollers are foldable, making them easy to fold and compact in size, thus easy to store and carry, meeting consumer demand for foldable strollers. Existing foldable strollers generally include a foldable frame, wheels mounted under the frame, a locking device that locks the frame in the open position, and a seat mounted on the frame for the child to sit in.

[0003] However, existing strollers generally retain the seat in use after folding, resulting in a relatively large size even when folded. This takes up a lot of space for carrying and storing, causing great inconvenience to users in their daily organization and transportation.

[0004] Therefore, there is an urgent need for a vehicle to solve the aforementioned technical problems existing in the prior art. Summary of the Invention

[0005] The purpose of this invention is to provide a vehicle that allows for folding of the seat frame, thereby reducing the volume of the vehicle after folding.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A vehicle having an unfolded state and a folded state, comprising:

[0008] The frame includes a front support, a rear support, and a push handle that are rotatably disposed relative to each other;

[0009] A seat frame includes a front seat plate, a rear seat plate rotatably connected to the front seat plate, and a support member supporting the front seat plate. The support member is rotatably mounted on the front bracket or the rear bracket via a pivot extending in a left-right direction.

[0010] A push handle linkage component is disposed on the push handle and movably connected to the rear seat plate;

[0011] When the push handle moves toward the rear support and folds, the push handle drives the rear seat plate to move through the push handle linkage, and the rear seat plate drives the front seat plate to move and causes the support member to rotate toward the front support, so that the front seat plate and the rear seat plate fold relative to each other.

[0012] As a preferred technical solution for the aforementioned vehicle, in the deployed state, the front seat plate and the rear seat plate extend along the same plane;

[0013] In the folded state, the front seat plate flips up to be perpendicular to the rear seat plate.

[0014] As a preferred technical solution for the aforementioned vehicle, in the folded state, the front seat plate is flipped to a position parallel to the plane where the front support is located.

[0015] As a preferred technical solution for the aforementioned vehicle, in the folded state, the front seat plate extends entirely in the vertical direction, and the rear seat plate extends entirely in the horizontal direction.

[0016] As a preferred technical solution for the aforementioned vehicle, the push handle linkage is rotatably mounted on the rear seat plate, the rear seat plate having a first end rotatably connected to the front seat plate and a second end away from the front seat plate; the push handle linkage is positioned relative to the rotational position of the rear seat plate, near the second end.

[0017] As a preferred technical solution for the aforementioned vehicle, in the deployed state, the push handle has a push rod that extends upward and rearward as a whole. The push rod is rotatably mounted on the rear support via a push rod pivot. The push handle linkage is located at the end where the push rod engages with the rear support and extends downward and rearward as a whole. The position where the push handle linkage engages with the rear seat plate is located at the end of the push handle linkage away from the push rod.

[0018] As a preferred technical solution for the aforementioned vehicle, in the unfolded state, the support member includes a transverse support rod extending in the left-right direction, an oblique support rod inclined forward and upward from the transverse support rod, and a seat plate support rod connected and fixed to the oblique support rod. The transverse support rod is rotatably mounted on the front bracket or the rear bracket, and the seat plate support rod is connected and fixed to the front seat plate and used to support the front seat plate.

[0019] As a preferred technical solution for the aforementioned vehicle, the seat plate support rod extends horizontally as a whole.

[0020] As a preferred technical solution for the aforementioned vehicle, the seat frame further includes a backrest, which is disposed between the two push rods and extends upward from front to back at an angle. The backrest is rotatably connected to the rear end of the rear seat plate.

[0021] As a preferred technical solution for the aforementioned vehicle, the rotational position of the backrest and the rear seat plate is located behind the rotational position of the push handle linkage and the rear seat plate.

[0022] The beneficial effects of this invention are:

[0023] The vehicle provided by this invention includes a frame, a seat frame, and a push handle linkage. The frame includes a front support, a rear support, and a push handle that are rotatably arranged relative to each other. The seat frame includes a front seat plate, a rear seat plate rotatably connected to the front seat plate, and a support member supporting the front seat plate. The support member has a pivot extending in the left-right direction and is rotatably mounted on the front or rear support. The push handle linkage is located on the push handle and is movably connected to the rear seat plate. When the push handle folds towards the rear support, the push handle moves the rear seat plate through the push handle linkage, which in turn moves the front seat plate and causes the support member to rotate towards the front support, so that the front and rear seat plates fold relative to each other. Through the above structural design, the vehicle provided by this invention has a neat and compact overall structure after folding, occupies little space, is easy to store at home and carry when going out, and provides a good user experience. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of the vehicle provided in the deployed state according to a specific embodiment of the present invention;

[0025] Figure 2 This is a structural schematic diagram of the vehicle provided in the specific embodiment of the present invention in its unfolded state (front seat plate and rear seat plate are not shown);

[0026] Figure 3 This is a schematic diagram showing the rotational connection relationship of each component in the vehicle provided in a specific embodiment of the present invention;

[0027] Figure 4 This is an isometric view of the folding process of the vehicle (front and rear seat plates not shown) provided in a specific embodiment of the present invention.

[0028] Figure 5 This is an isometric view of the folding process of the vehicle provided in a specific embodiment of the present invention;

[0029] Figure 6 This is a side view of the folding process of the vehicle provided in a specific embodiment of the present invention.

[0030] In the picture:

[0031] 1. Rear support; 11. Side support rods;

[0032] 2. Seat frame; 21. Front seat plate; 22. Rear seat plate; 23. Lateral support rod; 24. Seat plate strut;

[0033] 3. Front support; 31. Front outrigger;

[0034] 4. Push handle; 41. Push rod; 411. Upper push rod; 412. Lower push rod; 42. Push handle linkage component;

[0035] 5. Sliding components;

[0036] 6. Backrest;

[0037] 71. First link; 72. Second link;

[0038] 8. First horizontal brace; 81. First horizontal brace rod;

[0039] 9. Second horizontal support frame; 91. Second horizontal support rod;

[0040] 101. First wheel; 102. Second wheel. Detailed Implementation

[0041] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0042] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0047] This embodiment provides a vehicle, which can be, but is not limited to, a stroller or a trailer. This embodiment uses a stroller as an example, specifically a children's stroller. The stroller has an unfolded state and a folded state, such as... Figure 1 Hezhi Figure 3 As shown, the trolley includes a frame and a seat 2. The frame includes a front support 3, a rear support 1, and a push handle 4, which are rotatably arranged relative to each other. In the unfolded state, the push handle 4 is located above the front support 3 and is used by the user to push the trolley. The front support 3, the rear support 1, and the push handle 4 can rotate in pairs, that is, any one of them can be rotatably connected to any of the other two, or the three can rotate relative to each other about the same axis. In this embodiment, the front support 3 and the push handle 4 can be folded relative to the rear support 1.

[0048] The seat frame 2 includes a front seat plate 21, a rear seat plate 22 rotatably connected to the front seat plate 21, and a support member supporting the front seat plate 21. The support member is rotatably mounted on the front bracket 3 or the rear bracket 1 via a pivot extending in the left-right direction. The trolley also includes a push handle linkage 42, which is disposed on the push handle 4 and movably connected to the rear seat plate 22. When the push handle 4 moves towards the rear bracket 1 to fold, the push handle 4 drives the rear seat plate 22 to move via the push handle linkage 42. The rear seat plate 22 drives the front seat plate 21 to move and causes the support member to rotate towards the front bracket 3, so that the front seat plate 21 and the rear seat plate 22 fold relative to each other. The rear seat plate 22 and the front seat plate 21 are rotatably connected around a first axis X1. Compared with the non-foldable seat frame 2 in the prior art, the seat frame 2 in this embodiment can be folded during the folding process of the trolley, thereby reducing the volume of the folded trolley, reducing the space occupied, facilitating home storage and carrying when going out, and providing a better user experience.

[0049] Both the front bracket 3 and the push handle 4 include two support rods located on the left and right sides, respectively. Each support rod has a first end and a second end located at opposite ends along its length. The first end is rotatably connected to the rear bracket 1. Specifically, in the front bracket 3, the first end is on top and the second end is on the bottom, while in the push handle 4, the first end is on the bottom and the second end is on top.

[0050] The rear support 1 extends obliquely from rear to front and upward. In the unfolded state, the front support 3 includes two front legs 31 located on the left and right sides, and the push handle 4 includes two push rods 41 located on the left and right sides. The front legs 31 and push rods 41 extend obliquely from front to rear and upward respectively. The upper end of the front legs 31 is rotatably connected to the lower part of the rear support 1 around the second axis X2. The push rods 41 are rotatably mounted on the rear support 1 through a push rod pivot, that is, the lower end of the push rods 41 is rotatably connected to the upper part of the rear support 1 around the third axis X3. When both the front support 3 and the push handle 4 are folded relative to the rear support 1, the second ends of the two front legs 31 approach each other, and the second ends of the two push rods 41 also approach each other.

[0051] In the unfolded state, the push handle linkage 42 is located at the end where the push rod 41 engages with the rear bracket 1 and extends downward and backward as a whole. The position where the push handle linkage 42 engages with the rear seat plate 22 is located at the end of the push handle linkage 42 away from the push rod 41. That is, the push handle linkage 42 and the rear seat plate 22 are rotatably connected around the fourth axis X4. In the front-rear direction, the fourth axis X4 is located behind the third axis X3.

[0052] Specifically, the push handle linkage 42 has a first shaft hole at the rear, and the rear two ends of the rear seat plate 22 have second shaft holes respectively. The two second shaft holes are respectively set to correspond to the two first shaft holes. The rotating part is inserted into the first shaft hole and the corresponding second shaft hole to connect the two.

[0053] In other feasible embodiments, a first shaft hole is provided at the rear of the push handle linkage 42, and a through second shaft hole is provided at the rear of the rear seat plate 22 in the left-right direction. A rotating component is sequentially inserted through the first shaft hole, the second shaft hole on one side, and the first shaft hole on the other side to connect the push handle linkage 42 and the rear seat plate 22. The aforementioned rotating component can be, but is not limited to, a rotating shaft or a pin.

[0054] The front seat plate 21 and the rear seat plate 22 are rotatably connected by a pivot shaft that extends in the left-right direction. Specifically, the rear of the front seat plate 21 is provided with a first connecting lug, and the front of the rear seat plate 22 is provided with a second connecting lug. The first and second connecting lugs are interlocked, and both the first and second connecting lugs have through holes in the left-right direction, through which the pivot shaft passes to connect the front seat plate 21 and the rear seat plate 22.

[0055] In the unfolded state, the front seat panel 21 and the rear seat panel 22 extend along the same plane and are slightly tilted downwards from front to back, making the ride more comfortable for the passenger. In the folded state, the front seat panel 21 flips over to be approximately perpendicular to the rear seat panel 22, which minimizes the size of the trolley after folding.

[0056] Specifically, in the folded state, the front seat plate 21 flips to a position approximately parallel to the plane of the front support 3. Alternatively, in the folded state, the front seat plate 21 extends vertically as a whole, while the rear seat plate 22 extends horizontally as a whole.

[0057] The front seat panel 21 has a larger load-bearing area than the rear seat panel 22. Since both the front seat panel 21 and the rear seat panel 22 in this embodiment are seat panels, the load-bearing area is the area facing the occupant's buttocks. In the unfolded state, the load-bearing area is the area of ​​the upper surface of the seat, meaning the upper surface area of ​​the front seat panel 21 is larger than the upper surface area of ​​the rear seat panel 22. This structural design provides a more comfortable riding experience for the occupant.

[0058] The push handle linkage 42 is rotatably mounted on the rear seat plate 22. The rear seat plate 22 has a first end rotatably connected to the front seat plate 21 and a second end away from the front seat plate 21. The rotational position of the push handle linkage 42 and the rear seat plate 22 is relatively set closer to the second end. Here, "closer" means that relative to the first end, the rotational position of the push handle linkage 42 and the rear seat plate 22 is closer to the second end, that is, the distance between the rotational position of the push handle linkage 42 and the second end is less than the distance between the push handle linkage 42 and the first end. This structural arrangement can increase the rotational torque of the push handle linkage 42, thereby improving the driving force.

[0059] In this embodiment, the rear support 1 includes two side support rods 11 located on the left and right sides and extending vertically. The upper end of the front support leg 31 and the lower end of the push rod 41 are rotatably connected to the upper part of the side support rod 11 on the same side. A support member is disposed between the two side support rods 11. The support member is used to support and fix the front seat plate 21 to provide sufficient support force to the front seat plate 21 and ensure riding stability.

[0060] In the unfolded state, the support includes a transverse support rod 23 extending in the left-right direction, an oblique support rod inclined forward and upward from the transverse support rod 23, and a seat plate support rod 24 connected and fixed to the oblique support rod. The transverse support rod 23 is rotatably mounted on the front bracket 3 or the rear bracket 1, and the seat plate support rod 24 is connected and fixed to the front seat plate 21 and is used to support the front seat plate 21.

[0061] Specifically, the transverse support rod 23 is fixed between the two side support rods 11 and extends in the left-right direction, while the seat plate support rod 24 is fixed to the lower surface of the front seat plate 21. The forward-extending seat support frame is fixed to the lower surface of the front seat plate 21, achieving stable support for the front seat plate 21. To improve the support stability of the front seat plate 21, the seat plate support rod 24 is U-shaped, and its two side arms are fixedly connected to the transverse support rod 23 through diagonal support rods. The seat plate support rod 24 extends horizontally as a whole. Of course, the seat plate support rod 24 can have a downward tilt angle from front to back, so that the seat plate support rod 24 extends slightly downward from front to back, so that the front seat plate 21 is in a downward tilt state from front to back when unfolded.

[0062] The side support rod 11 is T-shaped, comprising a rod body extending obliquely in the vertical direction, and a connecting part fixed to the upper part of the rod body and extending obliquely in the front-back direction. Located on the left and right sides, the upper end of the front support leg 31 is rotatably connected to the front of the connecting part about the second axis X2, and the lower end of the push rod 41 is rotatably connected to the rear of the connecting part about the third axis X3. The axis lines of the second axis X2 and the third axis X3 both extend in the left-right direction.

[0063] The lateral support rod 23 cannot be folded in the left-right direction, thus improving the stability of the rear bracket 1. (See also...) Figure 2 As shown, the transverse support rod 23 is disposed between the two connecting parts, and along the front-back direction, the transverse support rod 23 is located between the second axis X2 and the third axis X3.

[0064] The seat frame 2 also includes a backrest 6, which is positioned between the two push rods 41 for the child to lean against. The backrest 6 extends upwards from front to back and is rotatably connected to the rear end of the rear seat plate 22 about the fifth axis X5. The rotational position of the backrest 6 and the rear seat plate 22 is located behind the rotational position of the push handle linkage 42 and the rear seat plate 22, that is, in the front-back direction, the fifth axis X5 is located behind the fourth axis X4.

[0065] The backrest 6 can be a backrest panel or a backrest frame plus a flexible fabric cover fitted onto the backrest frame. The trolley is also equipped with a locking mechanism (not shown in the figure) to keep the trolley in the unfolded state.

[0066] Each side of the support rod is provided with a connecting rod and a sliding member 5 between it and the rear support 1. The sliding member 5 is slidably mounted on the rear support 1 along its length. One end of the connecting rod is rotatably connected to the support rod, and the other end of the connecting rod is rotatably connected to the sliding member 5. The sliding member 5 and the connecting rod can work together during folding to drive the support rod and the rear support 1 to fold in the front-back direction. In this embodiment, on each side of the trolley, the sliding member 5 is slidably mounted on the side support rod 11 along its length. In the unfolded state, the sliding member 5 is located on the upper part of the side support rod 11, specifically at the connection between the rod body and the connecting part. The sliding member 5 can be a sleeve fitted onto the rod body. A first connecting rod 71 is provided between the front support 3 and the sliding member 5, and a second connecting rod 72 is provided between the push handle 4 and the sliding member 5. During the folding process of the trolley, the front support leg 31, the push rod 41 and the sliding part 5 are linked by a connecting rod, so that the front support leg 31, the rear support 1 and the push rod 41 are folded in the front-back direction.

[0067] See Figures 1 to 3 As shown, in the deployed state, the first link 71 extends obliquely in the front-to-back direction and is located on the left and right sides. The front part of the first link 71 is rotatably connected to the rear part of the front support leg 31 around the sixth axis X6, and the rear part of the first link 71 is rotatably connected to the slider 5 around the seventh axis X7. The axis lines of the sixth axis X6 and the seventh axis X7 both extend in the left-to-right direction, and along the length extension direction of the front support leg 31, the sixth axis X6 is located in front of the second axis X2. In the deployed state, the second link 72 extends obliquely in the up-down direction and is located on the left and right sides. The upper part of the second link 72 is rotatably connected to the lower part of the push rod 41 around the eighth axis X8, and the lower part of the second link 72 is rotatably connected to the slider 5 around the ninth axis X9. The axis lines of the eighth axis X8 and the ninth axis X9 both extend in the left-to-right direction, and along the length extension direction of the push rod 41, the eighth axis X8 is located above the third axis X3.

[0068] The frame also includes a cross brace positioned between the two second ends and capable of folding in the left-right direction. When the trolley is folded, the cross brace folds in the left-right direction and the support rods retract, allowing the trolley to fold not only forward and backward but also left and right during the transition between the unfolded and folded states. During this process, the width of the rear support 1 in the left-right direction and the distance between the two first ends remain unchanged. The folded trolley has a compact structure, occupies little space, and is easy to store and organize.

[0069] The cross brace frame includes two cross braces that are rotatably connected to each other. One end of each cross brace is rotatably connected, and the other end is rotatably connected to a support rod on the corresponding side. When the trolley is in the unfolded state, the two cross braces extend along the same length to maintain the stability of the trolley. When the trolley is in the folded state, the two cross braces are folded together, forming an angle greater than 0 and less than 180° between them.

[0070] In this embodiment, the cross brace includes a first cross brace 8 disposed between the two front outriggers 31 and a second cross brace 9 disposed between the two push rods 41. The first cross brace 8 includes two first cross brace rods 81 rotatably connected to each other. One end of each first cross brace rod 81 is rotatably connected about the tenth axis X10, and the other end of each first cross brace rod 81 is rotatably connected about the eleventh axis X11 to the lower part of the corresponding front outrigger 31. The second cross brace 9 includes two second cross brace rods 91 rotatably connected to each other. One end of each second cross brace rod 91 is rotatably connected about the twelfth axis X12, and the other end of each second cross brace rod 91 is rotatably connected about the thirteenth axis X13 to the upper part of the corresponding push rod 41. In the unfolded state, the center lines of the tenth axis X10 and the eleventh axis X11 both extend in the vertical direction, while the center lines of the twelfth axis X12 and the thirteenth axis X13 both extend in the front-back direction. The center lines of the above axes are not parallel to each other.

[0071] In this embodiment, the push rod 41 includes an upper push rod 411 and a lower push rod 412. The lower part of the lower push rod 412 forms a first end and is rotatably connected to the rear bracket 1. A push handle linkage 42 is provided on the inner side of the lower part of the lower push rod 412. The upper part of the lower push rod 412 is rotatably connected to the lower part of the upper push rod 411. The upper part of the upper push rod 411 forms a second end. The second cross brace 9 is located between the upper parts of the two upper push rods 411. Specifically, located on the left and right sides, the upper part of the lower push rod 412 and the lower part of the upper push rod 411 are rotatably connected around the fourteenth axis X14, and the axis of the fourteenth axis X14 extends in the left-right direction. The upper parts of the two upper push rods 411 are bent towards each other, and the two second cross braces 91 are rotatably connected to the upper parts of the upper push rods 411 on the same side. In the unfolded state, the upper parts of the upper push rods 411 and the second cross braces 91 form the push handle of the cart. The user drives the cart forward by pushing the upper parts of the upper push rods 411 or the second cross braces 91.

[0072] The trolley also includes a first wheel 101 and a second wheel 102. The first wheel 101 has two sets located on the lower left and right sides of the front support 3, and the second wheel 102 has two sets located on the lower left and right sides of the rear support 1. Specifically, the two sets of first wheels 101 are respectively located on the lower part of the two front support legs 31, and the two sets of second wheels 102 are respectively located on the lower part of the two side support rods 11.

[0073] In this embodiment, in the unfolded state, the two side support rods 11 extend gradually outward from front to back along the left-right direction. The distance between the upper ends of the two side support rods 11 is greater than the distance between their lower ends, resulting in a larger distance between the two sets of first wheels 101, thus enabling the first wheels 101 to provide more stable support. When the trolley is in the unfolded state, the distance between the two sets of first wheels 101 along the left-right direction is greater than the distance between the two sets of second wheels 102 along the left-right direction. During the transition from the unfolded state to the folded state, the distance between the two sets of first wheels 101 decreases, while the distance between the two sets of second wheels 102 remains unchanged. In this embodiment, the two sets of second wheels 102 are located on the outside of the two side support rods 11. The two side support rods 11 extend obliquely downwards towards each other, and the distance between their lower ends is smaller than the distance between their upper ends. This reduces the distance between the two sets of second wheels 102, thus reducing the folded size of the trolley along the left-right direction.

[0074] When folding the stroller, see Figures 4 to 6 As shown, the locking mechanism is released. Rotating the upper push rod 411 along direction a with the fourteenth axis X14 as the rotation axis, the upper push rod 411 rotates relative to the lower push rod 412 and folds towards each other. The connection between the upper push rod 411 and the lower push rod 412 moves downwards. The upper push rod 411 drives the lower push rod 412 to flip backwards along direction b around the third axis X3 and fold towards the rear side of the rear support 1. During the flipping of the lower push rod 412, the push handle linkage 42 drives the rear seat plate 22 to flip around direction c with the first axis X1 as the rotation axis. Simultaneously, the lower part of the second link 72 drives the sliding member 5 to slide downwards along the length of the side support rod 11. The sliding member 5 drives the first link 71 to slide downwards, and the front part of the first link 71 drives the front support leg 31 to flip and fold backwards relative to the front side of the rear support 1 with the second axis X2 as the rotation axis along direction d. Folding continues until the final folded state is achieved. During the process of folding the trolley in the front-back direction, the distance between the lower ends of the front support legs 31 on both sides and the distance between the upper parts of the upper push rods 411 on both sides are reduced. The distance between the lower parts of the upper push rods 411 on both sides and the distance between the upper parts of the lower push rods 412 on both sides are also reduced, thereby driving the first cross support frame 8 and the second cross support frame 9 to fold in the left-right direction. The two sets of first wheels 101 also fold in opposite directions, so that the trolley folds in the left-right direction.

[0075] When the trolley is folded, the front support legs 31, rear support 1, lower push rod 412, and upper push rod 411 are folded together from front to back. The front seat plate 21 is flipped to a position approximately parallel to the plane of the front support 3. This can also be understood as the front seat plate 21 extending vertically and positioned between the two front support legs 31. The rear seat plate 22 extends horizontally, positioned approximately horizontally between the connecting parts on both sides. The distance between the second ends of the two front support legs 31 is less than the distance between their first ends. The two first cross braces 81 form an acute angle, as do the two second cross braces 91. The distance between the two sets of first wheels 101 is less than the distance between the two sets of second wheels 102, and the two sets of first wheels 101 are folded together between the two sets of second wheels 102 in the left-right direction. In this state, the rotating connection between the upper push rod 411 and the lower push rod 412, along with the second wheels 102, is supported on the ground. In this embodiment, the dimension of the upper part of the rear support 1 along the left and right direction determines the dimension of the upper part of the trolley along the left and right direction in the folded state, and the distance between the two sets of second wheels 102 determines the dimension of the lower part of the trolley along the left and right direction in the folded state.

[0076] In summary, the trolley structure of this embodiment is simple. The trolley can be folded not only in the front-to-back direction but also in the left-to-right direction. Simultaneously, its seat frame 2 folds during the folding process relative to the rear support 1. The folding operation is simple: just press down and push forward the upper push rod 411 to drive the support rod and rear support 1 together in the front-to-back direction. During this process, the width of the rear support 1 remains unchanged in the left-to-right direction, and the second ends of the support rods away from the rear support 1 move closer together in the left-to-right direction, thus causing the trolley to fold in the left-to-right direction. There is no linkage mechanism between the rear support 1 and the support rods to drive the support rods to fold in the left-to-right direction. In the folded state, the front seat plate 21 flips to be approximately perpendicular to the rear seat plate 22, minimizing the trolley's folded volume. The trolley has a neat and compact overall structure after folding, occupies little space, is easy to store at home and carry when going out, and provides a good user experience.

[0077] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A vehicle having an unfolded state and a folded state, characterized in that, include: The frame includes a front support, a rear support, and a push handle that are rotatably disposed relative to each other; A seat frame includes a front seat plate, a rear seat plate rotatably connected to the front seat plate, and a support member supporting the front seat plate. The support member is rotatably mounted on the front bracket or the rear bracket via a pivot extending in a left-right direction. A push handle linkage component is disposed on the push handle and movably connected to the rear seat plate; When the push handle moves toward the rear support and folds, the push handle drives the rear seat plate to move through the push handle linkage, and the rear seat plate drives the front seat plate to move and causes the support member to rotate toward the front support, so that the front seat plate and the rear seat plate fold relative to each other.

2. The vehicle according to claim 1, characterized in that, In the unfolded state, the front seat plate and the rear seat plate extend along the same plane; In the folded state, the front seat plate flips up to be perpendicular to the rear seat plate.

3. The vehicle according to claim 2, characterized in that, In the folded state, the front seat plate flips to a position parallel to the plane of the front support.

4. The vehicle according to claim 2, characterized in that, In the folded state, the front seat plate extends vertically as a whole, and the rear seat plate extends horizontally as a whole.

5. The vehicle according to claim 1, characterized in that, The push handle linkage is rotatably mounted on the rear seat plate, which has a first end that is rotatably connected to the front seat plate and a second end that is away from the front seat plate; the push handle linkage is positioned relative to the rotational position of the rear seat plate and is located near the second end.

6. The vehicle according to claim 5, characterized in that, In the unfolded state, the push handle has a push rod that extends upward and backward as a whole. The push rod is rotatably mounted on the rear bracket via a push rod pivot. The push handle linkage is located at the end where the push rod engages with the rear bracket and extends downward and backward as a whole. The position where the push handle linkage engages with the rear seat plate is located at the end of the push handle linkage away from the push rod.

7. The vehicle according to claim 1, characterized in that, In the unfolded state, the support member includes a transverse support rod extending in the left-right direction, an oblique support rod inclined forward and upward from the transverse support rod, and a seat plate support rod connected and fixed to the oblique support rod. The transverse support rod is rotatably mounted on the front bracket or the rear bracket, and the seat plate support rod is connected and fixed to the front seat plate and used to support the front seat plate.

8. The vehicle according to claim 7, characterized in that, The seat plate support rod is installed to extend horizontally as a whole.

9. The vehicle according to claim 6, characterized in that, The seat frame also includes a backrest, which is disposed between the two push rods and extends upward from front to back at an angle. The backrest is rotatably connected to the rear seat plate.

10. The vehicle according to claim 9, characterized in that, The rotational position of the backrest and the rear seat plate is located behind the rotational position of the push handle linkage and the rear seat plate.

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