CN223821759U - Carrier tool - Google Patents

Abstract

The utility model discloses a carrier, belongs to the technical field of children products, and aims to solve the problems that an existing carrier is large in size after being folded and inconvenient to carry and store. The carrier comprises a frame, a seat frame and a push handle linkage piece, wherein the frame comprises a front support, a rear support and a push handle which are arranged in a rotating way, the seat frame comprises a front seat plate, a rear seat plate which is connected with the front seat plate in a rotating way and a support piece for supporting the front seat plate, the support piece is rotatably arranged on the front support or the rear support along a rotating shaft which extends 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, and the rear seat plate drives the front seat plate to move and enables the support piece to rotate towards the direction of the front support, so that the front seat plate and the rear seat plate are folded relatively. Through the structure, the whole structure of the carrier after being folded is neat and compact, the occupied space is small, the carrier is convenient to house and store and carry out, and the use experience is good.

Description

Carrier tool

Technical Field

The utility model relates to the technical field of children products, in particular to a carrier.

Background

Child strollers are widely used as a very convenient child walker. Most of the existing child carts have folding functions, are convenient to fold, have small size after folding, are easy to store and convenient to carry, and are the use demands of consumers on the folding child carts. The foldable stroller in the prior art generally comprises a foldable frame, wheels mounted below the frame, a locking device capable of locking the frame in an open state, and a seat pocket mounted on the frame for riding a child.

However, the existing child cart is generally kept in a use state after the back seat pocket is folded, so that the volume of the cart is still large after being folded, and the volume is relatively occupied for carrying and storing, so that great inconvenience is caused to daily arrangement, storage and travel carrying of a user.

Therefore, a carrier is needed to solve the above-mentioned technical problems in the prior art.

Disclosure of utility model

The utility model aims to provide a carrier which can realize the folding of a seat frame and reduce the volume of the folded carrier.

To achieve the purpose, the utility model adopts the following technical scheme:

a carrier having an unfolded state and a folded state, comprising:

The frame comprises a front bracket, a rear bracket and a push handle which are arranged in a relative rotation manner;

A seat frame comprising 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, a rotating shaft extending in the left-right direction of the supporting piece is rotationally arranged on the front bracket or the rear bracket, and

The pushing handle linkage piece is arranged on the pushing handle and is movably connected with the rear seat board;

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, and the rear seat plate drives the front seat plate to move and enables the supporting piece to rotate towards the direction of being folded towards the front support, so that the front seat plate and the rear seat plate are folded relatively.

As a preferable technical solution of the carrier, in the unfolded state, the front seat plate and the rear seat plate are arranged along the same plane in an extending manner;

in the folded state, the front seat plate is turned over to be perpendicular to the rear seat plate.

As a preferable technical solution of the above carrier, in the folded state, the front seat plate is turned to a position parallel to a plane where the front bracket is located.

As a preferable technical solution of the above carrier, in the folded state, the front seat plate is integrally extended in a vertical direction, and the rear seat plate is integrally extended in a horizontal direction.

As the preferable technical scheme of the carrier, the push handle linkage piece is rotatably arranged on the rear seat plate, the rear seat plate is provided with a first end part rotatably connected with the front seat plate and a second end part far away from the front seat plate, and the push handle linkage piece and the rotating position of the rear seat plate are oppositely arranged at a position close to the second end part.

As a preferable mode of the above-mentioned vehicle, in the deployed state, the push handle has a push rod integrally extending rearward and upward, the push rod is rotatably mounted on the rear bracket via a push rod rotation shaft, the push handle linkage is provided at one end of the push rod engaged with the rear bracket and integrally extending rearward and downward, and a position where the push handle linkage engages with the rear seat plate is provided at an end of the push handle linkage remote from the push rod.

In the above-mentioned preferred technical solution of the carrier, in the unfolded state, the supporting member includes a transverse supporting rod extending in the left-right direction, an inclined supporting rod inclined upward and forward from the transverse supporting rod, and a seat board supporting rod connected and fixed to the inclined supporting rod, where the transverse supporting rod is rotatably mounted on the front bracket or the rear bracket, and the seat board supporting rod is connected and fixed to the front seat board and used for supporting the front seat board.

As a preferable technical scheme of the carrier, the seat board stay bar is integrally arranged in a horizontally extending manner.

As the preferable technical scheme of the carrier, the seat frame further comprises a backrest, the backrest is arranged between the two push rods, the backrest extends obliquely from front to back, and the backrest is rotationally connected with the rear end of the rear seat plate.

As a preferable mode of the carrier, the rotational position of the backrest and the rear seat plate is located rearward of the rotational position of the handle linkage and the rear seat plate.

The utility model has the beneficial effects that:

The utility model provides a carrier, which comprises a frame, a seat frame and a push handle linkage piece, wherein the frame comprises a front support, a rear support and a push handle which are arranged in a rotating way, the seat frame comprises a front seat plate, a rear seat plate which is connected with the front seat plate in a rotating way and a support piece for supporting the front seat plate, the support piece is rotatably arranged on the front support or the rear support along a rotating shaft which extends 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, and the rear seat plate drives the front seat plate to move and enables the support piece to rotate towards the direction of the front support, so that the front seat plate and the rear seat plate are folded relatively. Through the arrangement of the structure, the carrier provided by the utility model has the advantages that the whole structure is neat and compact after being folded, the occupied space is small, the carrier is convenient to house and carry out, and the use experience is good.

Drawings

FIG. 1 is a schematic view of a carrier according to an embodiment of the present utility model in an unfolded state;

FIG. 2 is a schematic view of a carrier according to an embodiment of the present utility model in an unfolded state (front and rear seat plates are not shown);

FIG. 3 is a schematic diagram of a rotational connection of components in a carrier according to an embodiment of the present utility model;

FIG. 4 is an isometric view of a folding process of a carrier (front and rear seat panels not shown) provided in accordance with an embodiment of the present utility model;

FIG. 5 is an isometric view of a folding process of a carrier according to an embodiment of the present utility model;

fig. 6 is a side view of a folding process of a carrier according to an embodiment of the present utility model.

In the figure:

1. a rear bracket, 11, side struts;

2. a mounting; 21, a front seat board, 22, a rear seat board, 23, a transverse supporting rod, 24 and a seat board supporting rod;

3. Front support 31, front support leg;

4. Push handle 41, push rod 411, upper push rod 412, lower push rod 42, push handle linkage;

5. A slider;

6. A backrest;

71. a first link, 72, a second link;

8. 81, the first cross brace;

9. 91, second cross braces;

101. first wheel, 102, second wheel.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit or scope of the utility model, which is therefore not limited to the specific embodiments disclosed below.

In the description of the present utility model, 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", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The present embodiment provides a carrier, which may be, but not limited to, a cart or a trailer, and the present embodiment is described by taking a cart as an example, and may be a stroller. The cart has an unfolded state and a folded state, as shown in fig. 1 and 3, the cart comprises a frame and a seat frame 2, wherein the frame comprises a front bracket 3, a rear bracket 1 and a push handle 4 which are arranged in a relatively rotating manner, and in the unfolded state, the push handle 4 is positioned above the front bracket 3, and the push handle 4 is used for pushing the cart by a user. The front bracket 3, the rear bracket 1 and the push handle 4 rotate in pairs, namely any one of the front bracket 3, the rear bracket 1 and the push handle 4 is connected with any one of the other two, or the front bracket, the rear bracket and the push handle rotate relatively around the same rotating shaft. In the present embodiment, the front bracket 3 and the push handle 4 can be folded with respect to the rear bracket 1.

The seat frame 2 comprises a front seat plate 21, a rear seat plate 22 rotationally connected with the front seat plate 21 and a supporting piece for supporting the front seat plate 21, a rotating shaft extending in the left-right direction of the supporting piece is rotationally arranged on the front support 3 or the rear support 1, the trolley also comprises a push handle linkage piece 42, the push handle linkage piece 42 is arranged on the push handle 4 and is movably connected with the rear seat plate 22, when the push handle 4 is folded towards the rear support 1, the push handle 4 drives the rear seat plate 22 to move through the push handle linkage piece 42, and the rear seat plate 22 drives the front seat plate 21 to move and enables the supporting piece to rotate towards the direction of the front support 3 so as to enable the front seat plate 21 and the rear seat plate 22 to be folded relatively. The rear seat plate 22 is rotatably connected to the front seat plate 21 about the first axis X1. Compared with the seat frame 2 in the prior art, the seat frame 2 in the embodiment can be folded in the folding process of the cart, so that the folded volume of the cart is reduced, the occupied space is reduced, the storage and the outgoing carrying in the house are facilitated, and the use experience is good.

The front bracket 3 and the pushing handle 4 respectively comprise two supporting rods which are respectively arranged at the left side and the right side, each supporting rod is provided with a first end part and a second end part which are respectively arranged at the two different ends of the supporting rods in the length direction, and the first end parts are rotationally connected with the rear bracket 1. Specifically, in the front bracket 3, the first end is up and the second end is down, and in the push handle 4, the first end is down and the second end is up.

The rear bracket 1 extends obliquely from back to front upwards, in the unfolded state, the front bracket 3 comprises two front supporting legs 31 which are respectively arranged at the left side and the right side, the push handle 4 comprises two push rods 41 which are respectively arranged at the left side and the right side, the front supporting legs 31 and the push rods 41 respectively extend obliquely from front to back upwards, the upper end parts of the front supporting legs 31 are rotatably connected with the lower parts of the rear bracket 1 around a second axis X2, the push rods 41 are rotatably arranged on the rear bracket 1 through push rod rotating shafts, namely, the lower end parts of the push rods 41 are rotatably connected with the upper parts of the rear bracket 1 around a third axis X3. When the front bracket 3 and the push handle 4 are folded relative to the rear bracket 1, the second ends of the two front legs 31 are close to each other, and the second ends of the two push rods 41 are also close to each other.

In the unfolded state, the push-handle linkage 42 is provided at one end of the push rod 41 where it engages with the rear bracket 1 and extends downward rearward as a whole, and the position where the push-handle linkage 42 engages with the rear seat plate 22 is provided at the end of the push-handle linkage 42 that is away from the push rod 41. That is, the push handle link 42 is rotatably connected to the rear seat plate 22 about the fourth axis X4, and the fourth axis X4 is located rearward of the third axis X3 in the front-rear direction.

Specifically, the rear portion of the push handle linkage member 42 is provided with a first shaft hole, two ends of the rear portion of the rear seat plate 22 are respectively provided with a second shaft hole, the two second shaft holes are respectively and correspondingly arranged with the two first shaft holes, and the rotating member is inserted into the first shaft holes and the corresponding second shaft holes to connect the two first shaft holes and the corresponding second shaft holes.

In other possible embodiments, the rear portion of the push handle linkage member 42 is provided with a first shaft hole, the rear portion of the rear seat plate 22 is provided with a second shaft hole therethrough in the left-right direction, and a rotating member sequentially penetrates the first shaft hole on one side, the second shaft hole and the first shaft hole on the other side to connect the push handle linkage member 42 with the rear seat plate 22. The rotating member may be, but not limited to, a rotating shaft or a pin.

The front seat board 21 and the rear seat board 22 are rotatably connected through a rotating shaft, and the rotating shaft extends in the left-right direction. Specifically, the rear portion of the front seat board 21 is provided with a first connection lug, the front portion of the rear seat board 22 is provided with a second connection lug, the first connection lug and the second connection lug are arranged in a penetrating way, through holes are formed in the first connection lug and the second connection lug along the left-right direction, and the rotating shaft penetrates through the through holes to realize connection between the front seat board 21 and the rear seat board 22.

In the unfolded state, the front seat plate 21 and the rear seat plate 22 are arranged to extend along the same plane and are arranged to incline slightly downwards from the front to the rear, so that the passengers feel more comfortable when sitting. In the folded state, the front seat plate 21 is turned over to be approximately perpendicular to the rear seat plate 22, so that the folded volume of the cart can be reduced to the greatest extent.

Specifically, in the folded state, the front seat plate 21 is flipped to a position approximately parallel to the plane in which the front bracket 3 lies. It is also understood that in the folded state, the front seat plate 21 is integrally extended in the vertical direction, and the rear seat plate 22 is integrally extended in the horizontal direction.

The bearing area of the front seat plate 21 is larger than the bearing area of the rear seat plate 22. Since the front seat plate 21 and the rear seat plate 22 in the present embodiment are both seat plate structures, the load bearing area is the area facing the buttocks of the occupant. In the unfolded state, the carrying area is the area of the upper surface of the seat, i.e. the area of the upper surface of the front seat pan 21 is larger than the area of the upper surface of the rear seat pan 22. This structural arrangement can bring more comfortable riding experience for the occupant.

The push handle linkage 42 is rotatably mounted on the rear seat plate 22, the rear seat plate 22 has a first end portion rotatably connected with the front seat plate 21 and a second end portion distant from the front seat plate 21, and the rotational position of the push handle linkage 42 and the rear seat plate 22 is relatively arranged at a position close to the second end portion, wherein 'close' means that the rotational position of the push handle linkage 42 and the rear seat plate 22 is closer to the second end portion than the first end portion, i.e. the distance between the rotational position of the push handle linkage 42 and the rear seat plate 22 and the second end portion is smaller than the distance between the push handle linkage 42 and the first end portion. This structural arrangement can increase the rotational moment of the push handle linkage 42, thereby improving the driving force.

In the present embodiment, the rear bracket 1 includes two side struts 11 which are provided on both left and right sides and extend in the up-down direction, and the upper end portion of the front leg 31 and the lower end portion of the push rod 41 are both rotatably connected to the upper portions of the side struts 11 on the same side. The supporting member is provided between the two side struts 11 for supporting and fixing the front seat plate 21 to provide a sufficient supporting force to the front seat plate 21, ensuring seating stability.

In the unfolded state, the support member comprises a transverse support rod 23 extending in the left-right direction, an inclined support rod obliquely arranged from the transverse support rod 23 forward and upward and a seat plate support rod 24 fixedly connected with the inclined support rod, wherein the transverse support rod 23 is rotatably arranged on the front bracket 3 or the rear bracket 1, and the seat plate support rod 24 is fixedly connected with the front seat plate 21 and is used for supporting the front seat plate 21.

Specifically, the lateral support bar 23 is fixed between the two side struts 11 and extends in the left-right direction, and the seat plate stay 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 to realize stable support of the front seat plate 21. To improve the stability of the support for the front seat plate 21, the seat plate stay 24 is U-shaped, and its two side arms are fixedly connected to the transverse support rod 23 by means of diagonal stays. The seat stay 24 is integrally extended in the horizontal direction. Of course, the seat stay 24 may have a front-to-rear downward inclination angle such that the seat stay 24 extends slightly downward from front to rear, such that the front seat 21 assumes a front-to-rear downward inclined condition in the deployed condition.

The side strut 11 is T-shaped and includes a rod body extending obliquely in the up-down direction, and a connecting portion fixed to the upper portion of the rod body and extending obliquely in the front-rear direction. The upper end of the front leg 31 is rotatably connected to the front of the connection portion about the second axis X2, and the lower end of the push rod 41 is rotatably connected to the rear of the connection portion about the third axis X3, both the axis of the second axis X2 and the axis of the third axis X3 extending in the left-right direction.

The lateral support bar 23 cannot be folded in the left-right direction, and stability of the rear bracket 1 is improved. Referring to fig. 2, the lateral support bar 23 is disposed between the two connection parts, and the lateral support bar 23 is located between the second axis X2 and the third axis X3 in the front-rear direction.

The seat frame 2 further comprises a backrest 6, which backrest 6 is arranged between the push rods 41 on both sides for the child to lean backwards. The backrest 6 extends obliquely upward from the front and rear, and the backrest 6 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 rearward of the rotational position of the push handle linkage 42 and the rear seat plate 22, i.e., in the front-rear direction, and the fifth axis X5 is located rearward of the fourth axis X4.

The backrest 6 can be a backrest plate or a backrest frame and a flexible cloth sleeve sleeved on the backrest frame. The cart is also provided with a locking mechanism (not shown) for maintaining the cart in the deployed state.

A connecting rod and a sliding piece 5 are arranged between each side of the supporting rod and the rear bracket 1, the sliding piece 5 can be slidably arranged on the rear bracket 1 along the length extending direction of the rear bracket 1, one end part of the connecting rod is rotationally connected to the supporting rod, and the other end part of the connecting rod is rotationally connected to the sliding piece 5. The sliding piece 5 and the connecting rod can play a linkage role in the folding process, and are used for driving the supporting rod and the rear bracket 1 to fold along the front-rear direction. In the present embodiment, on each side of the cart, the slider 5 is slidably provided on the side strut 11 in the length extending direction of the side strut 11, and in the deployed state, the slider 5 is located at an upper portion of the side strut 11, specifically, at a junction of the rod main body and the connecting portion. The sliding piece 5 can be a sliding sleeve sleeved on the rod main body, a first connecting rod 71 is arranged between the front bracket 3 and the sliding piece 5, and a second connecting rod 72 is arranged between the pushing handle 4 and the sliding piece 5. During folding of the cart, the front leg 31, the push rod 41 and the slider 5 are linked through the link, so that the front leg 31, the rear bracket 1 and the push rod 41 are folded in the front-rear direction.

Referring to fig. 1 to 3, in the unfolded state, the first link 71 extends obliquely in the front-rear direction, is located on each of the left and right sides, and the front portion of the first link 71 is rotatably connected to the rear portion of the front leg 31 about the sixth axis X6, and the rear portion of the first link 71 is rotatably connected to the slider 5 about the seventh axis X7. The axis of the sixth axis X6 and the axis of the seventh axis X7 both extend in the left-right direction, and the sixth axis X6 is located in front of the second axis X2 in the length extending direction of the front leg 31. In the unfolded state, the second link 72 extends obliquely in the up-down direction, is located on each side of the left and right, the upper portion of the second link 72 is rotatably connected to the lower portion of the push rod 41 about the eighth axis X8, the lower portion of the second link 72 is rotatably connected to the slider 5 about the ninth axis X9, the axis of the eighth axis X8 and the axis of the ninth axis X9 both extend in the left-right direction, and the eighth axis X8 is located above the third axis X3 in the length extending direction of the push rod 41.

The frame also comprises a cross bracket which is arranged between the two second end parts and can be folded along the left-right direction. The trolley is in a folded state, the transverse support frames are folded along the left and right directions, and the support rods are mutually folded, so that the trolley is folded along the front and rear directions and can be folded along the left and right directions in the process of switching between the unfolded state and the folded state, and the width of the rear support 1 along the left and right directions and the distance between the two first ends are unchanged in the process. The folded trolley is compact in structure, small in occupied space and convenient to store and arrange.

The cross frame comprises two cross bars which are connected with each other in a rotating way, one end parts of the two cross bars are connected with each other in a rotating way, and the other end parts of the two cross bars are connected with the support bars on the corresponding sides in a rotating way. The trolley is in an unfolding state, the two transverse supporting rods extend along the same length direction and are used for maintaining the stability of the trolley, the two transverse supporting rods are mutually folded in a folding state, and an included angle larger than 0 and smaller than 180 degrees is formed between the two transverse supporting rods.

In the present embodiment, the cross frame includes a first cross frame 8 provided between the two front legs 31, and a second cross frame 9 provided between the two push rods 41. The first cross frame 8 includes two first cross bars 81 rotatably connected to each other, and one end portions of the two first cross bars 81 are rotatably connected about a tenth axis X10, and the other end portions of the two first cross bars 81 are rotatably connected to lower portions of the front legs 31 on the respective sides about eleventh axes X11, respectively. The second cross frame 9 includes two second cross bars 91 rotatably connected to each other, one end portions of the two second cross bars 91 are rotatably connected about a twelfth axis X12, and the other end portions of the two second cross bars 91 are rotatably connected to upper portions of the push rods 41 on the respective sides about thirteenth axes X13, respectively. In the unfolded state, the axis of the tenth axis X10 and the axis of the eleventh axis X11 extend in the vertical direction, the axis of the twelfth axis X12 and the axis of the thirteenth axis X13 extend in the front-rear direction, and the axes of the axes are not parallel to each other.

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 with the rear bracket 1, a push handle linkage member 42 is disposed 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 with the lower part of the upper push rod 411, the upper part of the upper push rod 411 forms a second end, and the second cross bracket 9 is disposed between the upper parts of the upper push rods 411 on both sides. Specifically, on each of the left and right sides, the upper portion of the lower push rod 412 is rotatably connected to the lower portion of the upper push rod 411 about a 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 oppositely bent, the two second cross braces 91 are respectively rotatably connected with the upper parts of the upper push rods 411 on the same side, and in the unfolded state, the upper parts of the upper push rods 411 and the second cross braces 91 form a push handle of the cart, so that a user drives the cart to advance by pushing the upper parts of the upper push rods 411 or the second cross braces 91.

The cart further comprises a first wheel 101 and a second wheel 102, wherein the first wheel 101 is provided with two groups which are respectively arranged at the lower parts of the left side and the right side of the front bracket 3, and the second wheel 102 is provided with two groups which are respectively arranged at the lower parts of the left side and the right side of the rear bracket 1. Specifically, two sets of first wheels 101 are provided at the lower portions of the two front legs 31, respectively, and two sets of second wheels 102 are provided at the lower portions of the two side stays 11, respectively.

In this embodiment, in the unfolded state, the two side struts 11 gradually extend outwards from front to back along the left-right direction, and the distance between the upper ends of the two side struts 11 is greater than the distance between the lower ends, so that the distance between the two sets of first wheels 101 is greater, and the first wheels 101 can provide more stable support. In the unfolded state of the cart, the distance between the two first wheels 101 in the left-right direction is larger than the distance between the two second wheels 102 in the left-right direction. During the transition of the cart from the unfolded state to the folded state, the distance between the two first wheels 101 is reduced, and the distance between the two second wheels 102 is unchanged. In this embodiment, the two second wheels 102 are disposed outside the two side struts 11, the two side struts 11 extend obliquely from top to bottom, and the distance between the lower ends is smaller than the distance between the upper ends, so that the distance between the two second wheels 102 is reduced, and the size of the folded trolley in the left-right direction is reduced.

When the cart is folded, as shown in fig. 4 to 6, the locking of the locking mechanism is released, and the upper push rod 411 is rotated in the direction a by using the fourteenth axis X14 as a rotation axis, so that the upper push rod 411 rotates relative to the lower push rod 412 and is folded in opposite directions, and the joint of the upper push rod 411 and the lower push rod 412 moves downward. The upper push rod 411 drives the lower push rod 412 to turn backwards around the third axis X3 along the direction b and fold towards the rear side of the rear bracket 1, in the process of turning the lower push rod 412, the push handle linkage 42 drives the rear seat plate 22 to turn around the first axis X1 as a rotation axis along the direction c, and simultaneously the lower part of the second connecting rod 72 drives the sliding part 5 to slide downwards along the length direction of the side supporting rod 11. The sliding piece 5 drives the first connecting rod 71 to slide downwards, and the front part of the first connecting rod 71 drives the front supporting leg 31 to fold back relative to the front side of the rear bracket 1 along the direction d by taking the second shaft X2 as a rotating shaft. Continuing to fold to reach a final folded state. In the process of folding the cart in the front-rear direction, the space between the lower ends of the front legs 31 at both sides and the space between the upper parts of the upper push rods 411 at both sides are reduced, and the space between the lower parts of the upper push rods 411 at both sides and the space between the upper parts of the lower push rods 412 at both sides are also reduced, so that the first cross bracket 8 and the second cross bracket 9 are driven to fold in the left-right direction, and the two groups of first wheels 101 are also folded in opposite directions, so that the cart is folded in the left-right direction.

When the cart is in a folded state, the front supporting legs 31, the rear bracket 1, the lower push rod 412 and the upper push rod 411 are folded together from front to back, the front seat board 21 is turned over to a position approximately parallel to the plane where the front bracket 3 is located, and it can be understood that the front seat board 21 is integrally extended in the vertical direction and positioned between the front supporting legs 31 on both sides, and the rear seat board 22 is integrally extended in the horizontal direction, that is, the rear seat board 22 is approximately horizontally positioned between the connecting parts on both sides. The distance between the second ends of the two front legs 31 is smaller than the distance between the first ends, an acute included angle is formed between the two first cross braces 81, and an acute included angle is also formed between the two second cross braces 91. The distance between the two first wheels 101 is smaller than the distance between the two second wheels 102, and the two first wheels 101 are folded between the two second wheels 102 in the left-right direction. In this state, the rotational joint of the upper push rod 411 and the lower push rod 412 is supported on the ground together with the second wheel 102. In the present embodiment, the dimension of the upper portion of the rear bracket 1 in the left-right direction determines the dimension of the upper portion of the cart in the folded state in the left-right direction, and the pitch between the two sets of second wheels 102 determines the dimension of the lower portion of the cart in the folded state in the left-right direction.

In summary, the cart of the present embodiment has a simple structure, and the cart can be folded not only in the front-rear direction but also in the left-right direction, and at the same time, the seat frame 2 is folded in the process of folding the frame relative to the rear bracket 1. The folding operation of the cart is simple, and the supporting rod and the rear bracket 1 can be driven to be folded together along the front-rear direction only by pressing down and pushing the push rod 411 forwards. In the process, the width of the rear bracket 1 along the left-right direction is kept unchanged, and the second ends of the support rods far away from the rear bracket 1 are mutually close along the left-right direction, so that the trolley is folded along the left-right direction. No linkage mechanism for driving the support rod to fold along the left-right direction is arranged between the rear support 1 and the support rod. In the folded state, the front seat plate 21 is turned over to be approximately perpendicular to the rear seat plate 22, so that the folded volume of the cart can be reduced to the greatest extent. The whole structure of the cart is compact after being folded, the occupied space is small, the cart is convenient for house storage and outgoing carrying, and the use experience is good.

It should be understood that the above-described embodiments of the present utility model are provided by way of example only and are not intended to limit the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A carrier having an unfolded state and a folded state, comprising:

The frame comprises a front bracket, a rear bracket and a push handle which are arranged in a relative rotation manner;

A seat frame comprising 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, a rotating shaft extending in the left-right direction of the supporting piece is rotationally arranged on the front bracket or the rear bracket, and

The pushing handle linkage piece is arranged on the pushing handle and is movably connected with the rear seat board;

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, and the rear seat plate drives the front seat plate to move and enables the supporting piece to rotate towards the direction of being folded towards the front support, so that the front seat plate and the rear seat plate are folded relatively.

2. The carrier of claim 1, wherein the carrier comprises a plurality of support members,

In the unfolding state, the front seat board and the rear seat board are arranged in an extending mode along the same plane;

in the folded state, the front seat plate is turned over to be perpendicular to the rear seat plate.

3. The carrier of claim 2, wherein the carrier comprises a plurality of support members,

In the folded state, the front seat plate is turned over to a position parallel to the plane where the front bracket is located.

4. The carrier of claim 2, wherein the carrier comprises a plurality of support members,

In the folded state, the front seat plate integrally extends in the vertical direction, and the rear seat plate integrally extends in the horizontal direction.

5. The carrier of claim 1, wherein the carrier comprises a plurality of support members,

The push handle linkage piece is rotatably arranged on the rear seat board, the rear seat board is provided with a first end part which is rotatably connected with the front seat board and a second end part which is far away from the front seat board, and the push handle linkage piece and the rotating position of the rear seat board are oppositely arranged at a position which is close to the second end part.

6. The carrier of claim 5, wherein the carrier comprises a plurality of pins,

In the unfolding state, the push handle is provided with a push rod which is integrally arranged in an extending mode along the rear upper direction, the push rod is rotatably installed on the rear support through a push rod rotating shaft, the push handle linkage piece is arranged at one end of the push rod, which is connected with the rear support, and is integrally arranged in an extending mode towards the rear lower direction, and the position, where the push handle linkage piece is connected with the rear seat plate, is arranged at the end portion, away from the push rod, of the push handle linkage piece.

7. The carrier of claim 1, wherein the carrier comprises a plurality of support members,

Under the expansion state, the support piece comprises a transverse support rod which is arranged in an extending mode along the left-right direction, an inclined support rod which is obliquely arranged from the transverse support rod to the front upper side and a seat board support rod which is fixedly connected with the inclined support rod, the transverse support rod is rotatably installed on the front support or the rear support, and the seat board support rod is fixedly connected with the front seat board and is used for supporting the front seat board.

8. The carrier of claim 7, wherein the carrier comprises a plurality of pins,

The whole seat board stay bar is arranged in an extending mode along the horizontal direction.

9. The carrier of claim 6, wherein the carrier comprises a plurality of support members,

The seat frame also comprises a backrest, the backrest is arranged between the two push rods, the backrest extends obliquely upwards from front to back, and the backrest is rotationally connected with the rear seat board.

10. The carrier of claim 9, wherein the carrier comprises a plurality of pins,

The rotational positions of the backrest and the rear seat plate are located behind the rotational positions of the push handle linkage and the rear seat plate.