WO2023103588A1

WO2023103588A1 - Folding outdoor cart

Info

Publication number: WO2023103588A1
Application number: PCT/CN2022/125607
Authority: WO
Inventors: 赵晨鹿
Original assignee: 赵晨鹿
Priority date: 2021-12-07
Filing date: 2022-10-17
Publication date: 2023-06-15
Also published as: CN216805504U

Abstract

A folding outdoor cart, comprising a base (1), fixing rotating shafts, support arm units, wheel shaft fixing pieces (5), and wheels (9), wherein the folding outdoor cart comprises a plurality of support arm units; each support arm unit comprises a support arm; each support arm unit is connected to the base (1) and each wheel shaft fixing piece (5) by means of the fixing rotating shafts; the wheels (9) are fixed on the wheel shaft fixing pieces (5); when in a use state, the wheels (9) support the whole folding outdoor cart; and in the unfolding and folding processes of the folding outdoor cart, linkage is formed between the support arms of each support arm unit.

Description

foldable outdoor cart

technical field

The utility model relates to an outdoor cart in the mechanical field, and in particular to a foldable outdoor cart.

Background technique

Outdoor trolleys are currently widely used tools that facilitate people's daily life, and are often used in outdoor camping activities. In outdoor activities such as camping, there are high requirements on the luggage handling tool, not only requiring it to be able to adapt to the outdoor environment, but also requiring the tool to be durable, have a large capacity, and be suitable for storage to save storage space.

At present, most outdoor carts adopt a lateral cross-bar support method, that is, side support assemblies are arranged in parallel, and cross-bar assemblies are arranged between the side support assemblies. In this way, the volume of the outdoor trolley is relatively large after storage, excessively occupying the interior space of the car, and reducing the utilization rate of the interior space of the car.

How to improve the outdoor carts so as to reduce the space occupied by the stored outdoor carts, thereby improving the utilization rate of the interior space of the car, has become an urgent problem to be solved. Therefore, be badly in need of developing a kind of outdoor stroller that takes up the interior space of automobile and takes up the interior space utilization ratio of automobile after a kind of storage.

Utility model content

In order to solve the above-mentioned problems of the prior art, the utility model provides the following technical solutions:

A foldable outdoor cart, which includes: a base, a fixed rotating shaft, a support arm unit, a wheel axle fixture, and wheels, wherein the foldable outdoor cart includes a plurality of the above-mentioned support arm units, and the above-mentioned support arm unit includes Supporting arms, each of the above-mentioned supporting arm units is connected to the base and the axle fixing part through the above-mentioned fixed rotating shaft; the above-mentioned wheels are fixed on the above-mentioned wheel axle fixing part, and when in use, the above-mentioned wheels support the entire foldable outdoor cart, In the process of opening and storing the foldable outdoor cart, the above-mentioned support arms of each of the above-mentioned support arm units form a linkage.

Preferably, there are four support arm units, and the four support arm units are arranged in an X shape when in use.

Preferably, each of the above-mentioned support arm units is connected to the base and the wheel shaft fixing member through four fixed rotation shafts, and the above-mentioned fixed rotation shaft or its extension forms four intersection points with a plane perpendicular to the fixed rotation shaft. Secondary connect these intersections to form a parallelogram.

Preferably, when each of the above-mentioned support arm units includes two support arms, the above-mentioned two support arms are respectively an upper support arm and a lower support arm; when each of the above-mentioned support arm units includes multiple support arms, the above-mentioned multiple support arms The arm includes an upper support arm, a lower support arm and other support arms, and the other support arms are longitudinally arranged side by side between the above-mentioned upper support arm and the above-mentioned lower support arm, or, the above-mentioned other support arms are arranged side by side laterally between the above-mentioned upper support arm and/or Or on the horizontal extension plane of the respective planes of the above-mentioned lower support arms.

Preferably, during the opening process, when the support arm unit is fully opened, the upper surface of the support arm unit and the upper surface of the base are basically kept on the same level, so that the structure of the foldable outdoor cart remains stable; During the storage process, an upward pulling force is applied to the base, and the structure of the support arm unit starts to be retracted. When fully retracted, the support arm unit and the axle fixing member are in a vertical state.

Preferably, the above-mentioned support arm unit is a yoke unit and/or a connecting rod.

Preferably, the above-mentioned support arm unit is a yoke unit, each of the above-mentioned yoke units includes two yokes, and is arranged in two layers. The upper layer of the foldable outdoor cart includes four upper yokes, and the lower layer includes four lower yokes. The yoke, the two ends of the upper yoke are respectively connected to the base and the axle fixing piece through the upper yoke fixed rotating shaft, and the two ends of the lower yoke are respectively connected to the above base and the wheel axle fixing piece through the lower yoke fixed rotating shaft , the above-mentioned upper yoke and the above-mentioned lower yoke in each of the above-mentioned yoke units are connected to the corresponding above-mentioned fixed rotation shafts, and these fixed rotation shafts or their extension lines form a plurality of intersection points with the plane perpendicular to these fixed rotation shafts, sequentially These intersections are connected to form a parallelogram; wherein during the opening and storage process of the above-mentioned foldable outdoor cart, linkage is formed between the above-mentioned upper yoke and the above-mentioned lower yoke of each of the above-mentioned yoke units; A slanting rod is arranged between the upper yoke and the lower yoke of the unit, and the slanting rod includes an upper end, a lower end of the slanting rod and a sliding shaft.

Preferably, during the opening process, the structure of the four sets of double wishbone is opened, the lower end of the above-mentioned oblique rod in each set of double wishbone and the above-mentioned sliding shaft in the chute move along the above-mentioned chute, when fully opened, the above-mentioned sliding The shaft drives the lower end of the above-mentioned inclined rod to move to the outer end of the above-mentioned chute and withstand the outer end of the above-mentioned chute, and plays a supporting role when the above-mentioned base is subjected to downward pressure.

Preferably, during the storage process, an upward pulling force is applied to the base, and the four sets of double wishbone are retracted under the action of gravity, and the lower end of the above-mentioned oblique rod in each set of double wishbone and the above-mentioned sliding shaft in the chute are aligned along the above-mentioned The chute moves to the inner end of the chute, and when fully withdrawn, the above-mentioned oblique rod and the above-mentioned sliding shaft move to the inner end of the chute, and the above-mentioned four sets of double wishbone are in a vertical state.

Preferably, in a state of use, the edge of the base abuts against a portion of the yoke unit close to the base.

The foldable outdoor cart of the utility model adopts the X-shaped arrangement of the support arm unit structure to replace the existing lateral cross bar support mode, which has the functions of the existing similar products; at the same time, under the premise of ensuring the function and stability, The volume of the foldable outdoor cart is reduced after being stored, thereby reducing the occupied interior space of the car by the foldable outdoor cart after being stored, and improving the utilization rate of the interior space of the car.

Description of drawings

Below, the utility model is described in detail through specific embodiments and in conjunction with the accompanying drawings, but the utility model is not limited thereby. Moreover, the structure of the foldable outdoor cart of the present invention is not strictly limited by the proportions shown in the accompanying drawings, and its structural proportions can be appropriately adjusted as required, as long as the purpose of the present invention can be achieved. in:

Fig. 1 shows the structural representation of a foldable outdoor cart in an open state according to an embodiment of the present invention;

Fig. 2 shows a partial structural schematic diagram of a single set of double wishbone in an open state of a foldable outdoor cart according to an embodiment of the present invention;

Fig. 3 shows a schematic structural diagram of a foldable outdoor cart in a storage state according to an embodiment of the present invention.

Fig. 4 shows a schematic structural view of the foldable outdoor cart according to an embodiment of the present invention in actual use.

Fig. 5 shows a schematic structural view of a foldable outdoor cart in an open state according to another embodiment of the present invention.

Explanation of reference signs:

1. Base;

2. Upper wishbone;

3. Lower wishbone;

4. Inclined rod;

4.1, the upper end of the inclined rod;

4.2, the lower end of the inclined rod;

5. Axle fixing parts;

6 and 6.2, the upper wishbone fixed rotation axis;

6.1 and 6.3, lower wishbone fixed rotation axis;

6.4. Sliding shaft;

7. Axle socket;

7.1. Accessory socket;

8. Chute;

9. Wheels;

10. Accessories;

11. Telescopic pull rod;

12. Telescopic cross bar;

13. Lock cap.

14. Connecting rod

The same or similar reference numerals represent the same or similar structural parts and/or assemblies.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. implementation plan. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that the terms "upper", "middle", "lower", "left", "right", "upward", "downward", "upper", "lower" used in the present utility model ", "horizontal", "longitudinal", "lateral", "both ends", "upper", "lower", "inner", "outer", "distal", "near", "side by side " and "parallel" have the meanings commonly understood by those skilled in the art, and will not be repeated here. In addition, the scientific and technological terms "connection", "fixation", "insertion", "linkage", "opening", "storage", "retraction", "vertical state" and "vertical state" used in the utility model have The meaning generally understood by those skilled in the art will not be described in detail here. In the utility model, "use state", "open state" or "working state" all refer to the state presented when the foldable outdoor cart is fully opened.

The utility model provides a foldable outdoor cart, wherein "foldable" means that it can be easily folded or disassembled when stored, and can be easily reassembled or opened when used again, but it is not limited to this meaning , It also includes a broad concept, for example, the outdoor cart can be opened to an appropriate degree (not fully opened) according to actual needs during use, and in addition, the outdoor cart is "foldable" as a whole or partial parts are "foldable".

The foldable outdoor cart of the utility model comprises: a base, a fixed rotating shaft, a support arm unit, a wheel shaft fixing part, and wheels.

The above-mentioned base is used to connect each support arm unit, and the number of the base is not particularly limited, as long as it can facilitate the opening of each support arm unit and can support the cargo carried by the cart, it can be 1 or more than 2.

The shape of the above-mentioned base is not particularly limited, as long as the technical effect of the utility model can be realized, it can be adjusted appropriately according to the width of the support arm unit, etc. From the perspective of looking down, the shape of the base of the outdoor cart of the utility model includes But not limited to octagon (such as irregular octagon, regular octagon), hexagon (such as irregular hexagon, regular hexagon), pentagon (such as irregular pentagon, regular pentagon ) and quadrilaterals (such as parallelograms, rectangles, squares), etc. When the outdoor cart of the present invention has four support arm units, the shape of the base can be quadrangular or hexagonal, preferably hexagonal. In addition, it can also be in a shape such as a circle, as long as the support arm unit can be firmly connected. There is no special limitation on the size of the base, as long as the technical effect of the utility model can be realized. In addition, the size of the base can be suitably large to replace the slanting rod to support the fully opened X-shaped support arm unit.

The number of the above-mentioned support arm units is not particularly limited, as long as it can be opened smoothly and the entire outdoor cart is stabilized, there is no special limit, and it can be odd or even. From the perspective of stability, the number is preferably even. Specifically, the support arm unit The number can be four, six, eight, etc., and is preferably four in terms of simple structure, light weight, and convenience for storage.

The lengths of the above-mentioned support arm units can be different or completely the same, as long as the whole cart can be stabilized in the use state, there is no special limitation. For example, when the number of the above-mentioned support arm units is four, in the state of use, preferably the four support arm units are arranged in an X shape (here, also including the situation of "ten" shape); when the length of the support arm units is not At the same time, it is preferable that the two opposing support arm units have the same length, wherein one set of opposing two supporting arm units is relatively long, and the other set of opposing supporting arm units is relatively short, but it is not limited thereto. More preferably, the lengths of the support arm units are exactly the same. At this time, when the outdoor cart of the present utility model is in use, each support arm unit is fully opened, if the far end (the end away from the base) of each support arm unit is connected, it is preferably to form a square, rectangle, parallelogram, etc. .

Each support arm unit includes two or more support arms (for example, 3, 4, 5, 6, 7, 8, 9, 10, etc.). The arrangement position between each support arm that each support arm unit comprises is not particularly limited, for example, when each support arm unit comprises 2 support arms, these 2 support arms are arranged up and down or parallel (arranged side by side) On the horizontal extension plane of the plane where the support arm is located), when the two support arms are arranged up and down, two of the support arms are respectively the upper support arm and the lower support arm; when each support arm unit contains 3 support arms, The 3 support arms can be arranged up, middle and down; when each support arm unit includes 4 support arms, the 4 support arms can be arranged up, down, left and right. However, the way of arrangement is not limited to this.

In the foldable outdoor cart of the present utility model, the support arm contained in the support arm unit is respectively connected to the base and the axle fixing part through the fixed rotating shaft, wherein the supporting arm is connected to the fixed rotating shaft to form a connection point, and each connection point Connected in sequence to form an internal space, the space can be in the same plane or three-dimensional, the shape of the space is not particularly limited, it can be random or regular, as long as the foldable The outdoor cart can be opened and stored smoothly.

As a preferred embodiment, the above-mentioned support arm unit is connected to the base and the wheel axle fixing member respectively through four fixed rotation axes, and the fixed rotation axes or their extension lines form four intersection points with the plane perpendicular to the fixed rotation axes, in order Connecting these intersections forms a parallelogram. However, the number of fixed rotating shafts is not limited thereto, as long as the fixed connection with the support arm unit can be ensured, and the cart can be opened and stored smoothly.

The shape of the support arm of each support arm unit is not particularly limited, as long as the upper surface of each support arm unit and the upper surface of the above-mentioned base can be basically kept on the same level when each support arm unit is opened, when the utility model When the outdoor cart includes a tilt bar, in order to make the tilt bar smoothly linked with the support arm when the outdoor cart is opened and stored, it is necessary to reserve a certain linkage space for the tilt bar. Preferably, the supporting arm unit is a fork arm, and the shape of the fork arm is a "Y" shape, but it is not limited thereto.

For the support arms of each support arm unit of the present utility model are kept in a fixed position when opened, a chute can be set on each support arm, so that the sliding shaft at the lower end of the diagonal bar can move freely in the chute. At this time, The length of the chute is such that when the support arm unit is fully opened, the sliding shaft at the lower end of the slant bar just abuts against the end of the chute, thereby fixing the entire support arm unit, but it is not limited to this method. For example, it is also possible to appropriately increase the surface area of the base so that the edge of the base abuts against the part of the support arm unit close to the base, thereby preventing the support arm unit from further tilting upward.

The upper end of the oblique rod is connected to the base, and the specific connection method is not particularly limited, as long as the upper end of the oblique rod can be fixed and the lower end of the oblique rod can abut against the end of the chute. For example, the upper end of the oblique rod can be fixed on the base, or on the fixed rotating shaft of the upper wishbone, but it is not limited thereto.

For the foldable outdoor stroller of the present invention, the positional relationship between the above-mentioned support arm unit and the above-mentioned base is not particularly limited when in use, as long as it can be opened and stored smoothly, and the support arm unit can fully support the The base will do. When in use, the above-mentioned support arm unit can be located below the plane where the base is located, or can be on the same plane as the base. As a preferred embodiment, for example, the upper surface of the support arm unit and the upper surface of the base are kept on almost the same level.

For the foldable outdoor cart of the present invention, the supporting arm unit is preferably a fork arm unit and/or a connecting rod. The support arm units can all be yoke units, or all can be connecting rods, or one part can be yoke units and the other part can be connecting rods. There is no particular limitation on the structure of each link above, for example, it may be a single link or a double link, as long as it can ensure the smooth opening and storage of the foldable outdoor cart.

For example, for each connecting rod of the present utility model to be kept in a fixed position when opened, a chute can be set on each connecting rod, so that the sliding shaft at the lower end of the oblique rod can move freely in the chute, at this time, the chute The length of the connecting rod is such that when the connecting rod is fully opened, the sliding shaft at the lower end of the slanting rod just abuts against the end of the chute, thereby fixing the entire connecting rod, but it is not limited to this method. For example, it is also possible to appropriately increase the surface area of the base, so that the edge of the base abuts against the part of the connecting rod close to the base, thereby preventing the connecting rod from further tilting upward.

As a preferred mode of the utility model, the utility model provides a foldable outdoor cart, which includes four yoke units arranged in an X shape, and each yoke unit is respectively connected to the base and the wheel shaft through a fixed rotating shaft. The fixing parts are connected; during the opening and storage process of the foldable outdoor cart, linkage is formed between the fork arms of each fork arm unit.

In particular, when the foldable outdoor cart is opened, the structure of the yoke unit is opened, and the upper surface of the aforementioned yoke unit and the upper surface of the aforementioned base are basically kept on the same level, and when fully opened, the foldable outdoor cart The structure of the car remains stable; in the storage process, an upward pulling force is applied to the base, and the structure of the yoke unit begins to retract. When fully retracted, the yoke unit and the wheel axle fixture are in a vertical state, preferably a vertical state.

According to a preferred embodiment of the present utility model, as shown in Figures 1 and 2, the foldable outdoor cart comprises eight fork arms, which are arranged in an upper and lower two-layer layout, and are arranged in an X shape as a whole when fully opened, wherein, The upper layer is four upper yokes (2), the lower layer is four lower yokes (3), and each upper yoke (2) and each corresponding lower yoke (3) form a group of double yokes (that is, one wishbone unit), a total of four sets of double wishbone (that is, four wishbone units), and the two ends of the upper wishbone (2) respectively fix the rotating shaft (6, 6.2) and the base (1) and the axle fixing parts through the upper wishbone (5) mutual shaft connection, the two ends of the lower wishbone (3) are respectively axially connected with the base (1) and the wheel shaft fixing member (5) through the lower wishbone fixed rotating shaft (6.1, 6.3), so that each wishbone can be moved along the axis rotation, the upper yoke (2) and lower yoke (3) in each yoke unit are connected with the corresponding fixed rotation shafts (6, 6.2) and fixed rotation shafts (6.1, 6.3), these fixed rotation shafts or The extension line and the plane perpendicular to the fixed rotation axis respectively form 4 intersection points, and the 4 intersection points are connected in sequence to form a parallelogram (in the same plane).

The foldable outdoor cart of the utility model includes two states: an open state (or a working state) and a storage state. As shown in Figures 1 to 3, during the opening and storage process of the foldable outdoor cart, a linkage is formed between the upper fork (2) and the lower fork (3) of each fork unit; A slanting rod (4) is arranged between the upper yoke (2) and the lower yoke (3) of the arm unit, the upper end (4.1) of the slanting rod is connected to the fixed rotating shaft (6) of the upper yoke, and the lower end (4.2) of the slanting rod It is connected with the sliding shaft (6.4) in the chute (8), so that the sliding shaft (6.4) can move freely in the chute (8); the wheels (9) and accessories (10) are respectively inserted into the wheel shaft fixing parts (5 ) on the axle socket (7) and accessories socket (7.1), and the wheel (9) is fixed on the axle fixture (5).

According to a preferred embodiment of the present utility model, during the opening process of the foldable outdoor cart, as shown in Figures 1 and 2, the structures of four sets of double wishbone are opened, and the lower ends of the diagonal bars in each set of double wishbone ( 4.2) and the sliding shaft (6.4) move along the chute (8), when fully opened, the sliding shaft (6.4) drives the lower end of the inclined rod (4.2) to move to the outer end of the chute (8) (the end away from the base (1)) And abut against the outer end of the chute (8), and play a supporting role when the base (1) is under downward pressure; during its storage, as shown in Figure 3, an upward pulling force is applied to the base (1), four groups The double wishbone is withdrawn under the action of gravity, and the lower end (4.2) and the sliding shaft (6.4) of each set of double wishbone move toward its inner end (the end close to the base (1)) along the chute (8), completely When retracting, the oblique rod (4) and the slide shaft (6.4) move to the inner end of the chute (8), and the four sets of double wishbone are roughly parallel.

According to a preferred embodiment of the present utility model, wherein, the wheel (9) is integrally formed with the wheel shaft fixing part (5), and the accessories (10) are fixed on the wheel shaft fixing part (5) in other detachable ways, detachably fixed Ways include but are not limited to screw tightening, buckle locking, and the like. In addition, brakes and/or braking devices can also be installed on the wheels (9) to play the role of making the outdoor cart brake and stop smoothly.

As a preferred embodiment of the present utility model, wherein the accessory (10) is an elongated rod, bar or plate (such as an elongated narrow plate), a shelter, preferably a tarpaulin, is arranged around the accessory (10).

The space size range of the items contained in the foldable outdoor cart is properly selected according to the size of the base of the present invention, the yoke unit, and the accessories (10), for example, it can be 600mm×300mm×300mm to 2000mm×1000mm×1000mm, Wherein as an embodiment, its size is 830mm×460mm×500mm, but not limited thereto.

The material of the accessories (10) is not particularly limited, as long as it does not affect the portability of the utility model outdoor cart, its material includes but not limited to plastics, metals (such as aluminum alloy, etc.). The material of the tarpaulin is not particularly limited, and those skilled in the art can select a suitable tarpaulin according to needs. The tarpaulin may include but not limited to woven and non-woven fabrics, and may include but not limited to polyvinyl chloride (PVC) plastic or nylon-like materials.

According to a preferred embodiment of the present invention, wherein, the number of slanting bars (4) is 1 to 4, but it is not limited thereto.

According to a preferred embodiment of the present invention, wherein the foldable outdoor cart is a foldable outdoor cart, such as an outdoor camping cart/trailer, a supermarket shopping cart/trailer, a portable grocery shopping cart/trailer, etc. .

According to the utility model, in addition to the functions of similar products on the market, the foldable outdoor cart adopts a multi-yoke structure to replace the traditional lateral cross support structure; on the premise of ensuring the function and stability, the outdoor cart can be compressed The volume after storage improves the space utilization rate of the car, especially the camping vehicle, occupied by the outdoor cart after storage.

In actual use, with reference to Fig. 4, the foldable outdoor cart of the present invention also includes a telescopic pull rod (11) for manpower driving, in addition, the accessories (10) and the telescopic cross bar (12) form a supporting structure, It is fixed by the lock cap (13), and the whole supporting structure is surrounded by a tarpaulin etc. to form an internal storage space.

Fig. 5 is a structural schematic diagram of another embodiment of a foldable outdoor cart in an open state, wherein the foldable outdoor cart uses four sets of connecting rods (14) (double connecting rods), and in the use state, Four groups of connecting rods are fully opened and abut against the base, thereby fixing four groups of connecting rods (14).

The utility model has been described in detail above through preferred embodiments. On the premise of not departing from the spirit and purpose of the present utility model, those skilled in the art can make various modifications, improvements and equivalent replacements to these embodiments. Those skilled in the art understand that the embodiments after these modifications, improvements and equivalent replacements still fall within the protection scope of the present invention.

Claims

A foldable outdoor cart, characterized in that it comprises: a base (1), a fixed rotating shaft, a support arm unit, a wheel shaft fixing member (5), and wheels (9), wherein,

The foldable outdoor cart includes a plurality of support arm units, the support arm unit includes a support arm, each of the support arm units is connected to the base (1) and the wheel axle fixing member (5) through the fixed rotating shaft interconnected;

The wheels (9) are fixed on the axle fixing member (5), and when in use, the wheels (9) support the entire foldable outdoor cart,

During the opening and storage process of the foldable outdoor cart, the support arms of each support arm unit form a linkage.
The foldable outdoor cart according to claim 1, characterized in that, each of the support arm units is connected to the base (1) and the axle fixing member (5) through four fixed rotating shafts, and the The fixed rotation axis or its extension line forms four intersections with the plane perpendicular to the fixed rotation axis, and these intersections are connected in sequence to form a parallelogram.
The foldable outdoor cart according to claim 1, characterized in that there are four support arm units, and the four support arm units are arranged in an X shape when in use.
The foldable outdoor cart according to claim 3, characterized in that,

When each of the support arm units includes two support arms, the two support arms are respectively an upper support arm and a lower support arm;

When each of the support arm units includes a plurality of support arms, the plurality of support arms include an upper support arm, a lower support arm and other support arms, and the other support arms are longitudinally arranged side by side between the upper support arm and the support arms. Between the lower support arms, or, the other support arms are laterally arranged side by side on a plane extending laterally to the plane where the upper support arm and/or the lower support arm are respectively located.
The foldable outdoor cart according to claim 1, characterized in that, during the opening process, when the support arm unit is fully opened, the upper surface of the support arm unit and the base (1) The upper surface is basically kept on the same level, so that the structure of the foldable outdoor cart remains stable; during the storage process, an upward pulling force is applied to the base (1), and the structure of the support arm unit starts retracted, when fully retracted, the support arm unit and the axle fixing member (5) are basically in a vertical state.
The foldable outdoor cart according to any one of claims 1 to 5, wherein the support arm unit is a fork arm unit and/or a connecting rod.
The foldable outdoor stroller according to claim 6, wherein the support arm unit is a yoke unit, and each yoke unit includes two yokes in a layout of upper and lower layers, and the foldable The upper layer of the type outdoor cart includes four upper yokes (2), and the lower layer includes four lower yokes (3), and the two ends of the upper yoke (2) respectively fix the rotation shafts (6, 6.2) through the upper yokes. It is connected with the base (1) and the axle fixing part (5), and the two ends of the lower wishbone (3) are respectively fixed to the base (1) and the axle through lower wishbone fixed rotation shafts (6.1, 6.3) The parts (5) are connected to each other, the upper yoke (2) and the lower yoke (3) are connected with the corresponding fixed rotation shafts (6, 6.2) and the fixed rotation shafts (6.1, 6.3), The fixed rotation axes (6, 6.2) and the fixed rotation axes (6.1, 6.3) or their extensions form four intersection points with the plane perpendicular to these fixed rotation axes, and the four intersection points are connected in sequence to form a parallelogram;

Wherein, during the opening and storage process of the foldable outdoor cart, linkage is formed between the upper fork (2) and the lower fork (3) of each of the fork units; A slanting rod (4) is arranged between the upper yoke (2) and the lower yoke (3) of the yoke unit, and the slanting rod (4) includes a slanting rod upper end (4.1), a slanting rod lower end (4.2) and sliding shaft (6.4).
The foldable outdoor cart according to claim 7, characterized in that:

During the opening process, the structure of four sets of double wishbone is opened, and the lower end (4.2) of the inclined rod in each set of double wishbone is connected with the sliding shaft (6.4) in the slide groove (8) along the When the chute (8) is fully opened, the sliding shaft (6.4) drives the lower end (4.2) of the inclined rod to move to the outer end of the chute (8) and withstand the outer end of the chute (8). end, which plays a supporting role when the base (1) is under downward pressure.
The foldable outdoor cart according to claim 7, characterized in that:

During the storage process, an upward pulling force is applied to the base (1), and the four sets of double wishbone are retracted under the action of gravity, and the lower end (4.2) of the inclined rod in each set of double wishbone is connected to the sliding slot The sliding shaft (6.4) in (8) moves along the chute (8) to the inner end of the chute (8), and when fully retracted, the inclined rod (4) and the sliding shaft ( 6.4) Moving to the inner end of the chute (8), the four sets of double wishbone are basically in a vertical state.
The foldable outdoor cart according to any one of claims 1 to 5, characterized in that, in the state of use, the edge of the base (1) and the edge of the fork arm unit close to the base (1) partly touch.