CN216805504U

CN216805504U - Foldable outdoor cart

Info

Publication number: CN216805504U
Application number: CN202123049948.0U
Authority: CN
Inventors: 赵晨鹿
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-06-24
Anticipated expiration: 2031-12-07
Also published as: WO2023103588A1

Abstract

The utility model relates to a foldable outdoor cart, comprising: the foldable outdoor cart comprises a base (1), a support arm fixing rotating shaft, support arm units, a wheel shaft fixing piece (5) and wheels (9), wherein the foldable outdoor cart comprises a plurality of support arm units, each support arm unit comprises a support arm, and each support arm unit is mutually connected with the base (1) and the wheel shaft fixing piece (5) through the support arm fixing rotating shaft; the wheels (9) are fixed on the wheel shaft fixing piece (5), when the foldable outdoor cart is in a use state, the wheels (9) support the whole foldable outdoor cart, and linkage is formed between the supporting arms of each supporting arm unit in the opening and storage processes of the foldable outdoor cart. This outdoor shallow of folded cascade adopts many supporting arm structures, reduces the inside space utilization of the volume of shallow after accomodating and improvement car.

Description

Foldable outdoor cart

Technical Field

The present invention relates to outdoor carts in the field of machinery, and in particular to foldable outdoor carts.

Background

The outdoor cart is a tool which is widely used at present and is convenient for people to live in daily life, and is often applied to outdoor camping activities. In outdoor activities such as camping, the requirement for luggage handling tools is high, not only is it required to be able to adapt to the outdoor environment, but also the tools are required to be strong and durable, have a large capacity, and be suitable for storage in order to save storage space.

At present most outdoor shallow all adopts the side direction crossbar support mode, parallel arrangement lateral part supporting component promptly, is provided with the crossbar assembly between the lateral part supporting component. Like this, it is great to lead to outdoor shallow to accomodate the back volume, excessively occupies the car inner space, reduces the inner space utilization of this car.

How to improve the outdoor shallow and occupy the car inner space with the outdoor shallow that reduces after accomodating to improve the inner space utilization of car, become the problem that awaits the solution at present. Therefore, it is urgently needed to develop an outdoor cart which occupies a small space inside a vehicle after being stored so as to improve the utilization rate of the space inside the vehicle.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems in the prior art, the present invention provides the following technical solutions:

a foldable outdoor cart, comprising: the foldable outdoor cart comprises a plurality of support arm units, each support arm unit comprises a support arm, and each support arm unit is mutually connected with the base and the wheel axle fixing part through the support arm fixing rotating shaft; the wheels are fixed on the wheel shaft fixing piece, when the foldable outdoor cart is in a use state, the wheels support the whole foldable outdoor cart, and linkage is formed between the supporting arms of each supporting arm unit in the opening and containing processes of the foldable outdoor cart.

Preferably, the number of the support arm units is four, and the four support arm units are arranged in an X-shape in the use state.

Preferably, each of the support arm units is connected to the base and the axle holder by 4 support arm fixing rotation shafts, and the support arm fixing rotation shafts or extension lines thereof form 4 intersections with a plane perpendicular to the support arm fixing rotation shafts, and the intersections are sequentially connected to form a parallelogram.

Preferably, when each of the support arm units includes two support arms, the two support arms are an upper support arm and a lower support arm, respectively; when each of the support arm units includes a plurality of support arms, the plurality of support arms includes an upper support arm, a lower support arm, and other support arms, the other support arms being longitudinally juxtaposed between the upper support arm and the lower support arm, or the other support arms being transversely juxtaposed on a transversely extending plane of a plane in which each of the upper support arm and/or the lower support arm is located.

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 kept on the same horizontal plane, so that the structure of the foldable outdoor cart is kept stable; in the process of storage, an upward pulling force is applied to the base, the structure of the supporting arm unit begins to retract, and when the supporting arm unit and the wheel axle fixing piece are completely retracted, the supporting arm unit and the wheel axle fixing piece are in a vertical state.

Preferably, the support arm unit is a yoke unit and/or a link.

Preferably, the support arm unit is a yoke unit, each of the yoke units includes two yokes and is disposed in an upper-lower two-layer layout, an upper layer of the foldable outdoor cart includes four upper yokes, a lower layer of the foldable outdoor cart includes four lower yokes, two ends of each of the upper yokes are connected to the base and the axle fixing member through a first upper yoke fixing rotating shaft and a second upper yoke fixing rotating shaft, two ends of each of the first lower yoke and the second lower yoke are connected to the base and the axle fixing member through a first lower yoke fixing rotating shaft and a second lower yoke fixing rotating shaft, the upper yoke and the lower yoke in each of the yoke units are connected to the corresponding first upper yoke fixing rotating shaft and the corresponding second upper yoke fixing rotating shaft, the first upper yoke fixing rotating shaft, the second upper yoke fixing rotating shaft, the first lower yoke fixing rotating shaft, or an extension line of the first upper yoke fixing rotating shaft and the second lower yoke fixing rotating shaft, and the extension line of the first upper yoke fixing rotating shaft, The extension lines of the first lower fork arm fixed rotating shaft and the second lower fork arm fixed rotating shaft and a plane vertical to the first upper fork arm fixed rotating shaft and the second upper fork arm fixed rotating shaft and the first lower fork arm fixed rotating shaft form a plurality of intersection points which are sequentially connected to form a parallelogram; wherein said upper yoke and said lower yoke of each said yoke unit are interlocked during opening and closing of said foldable outdoor cart; an inclined rod is arranged between the upper yoke and the lower yoke of each yoke unit, and the inclined rod comprises an upper end and a lower end of the inclined rod and a sliding shaft.

Preferably, during the opening process, the four sets of double-forked arms are opened, the lower end of the inclined rod in each set of double-forked arms and the sliding shaft in the sliding chute move along the sliding chute, and when the double-forked arms are completely opened, the sliding shaft drives the lower end of the inclined rod to move to the outer end of the sliding chute and prop against the outer end of the sliding chute, so that the base plays a supporting role when being pressed downwards.

Preferably, in the storage process, an upward pulling force is applied to the base, the four sets of double-forked arms retract under the action of gravity, the lower end of the inclined rod and the sliding shaft in the sliding chute in each set of double-forked arms move to the inner end of the sliding chute along the sliding chute, and when the inclined rod and the sliding shaft are completely retracted, the inclined rod and the sliding shaft move to the inner end of the sliding chute, and the four sets of double-forked arms are all in a vertical state.

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

The foldable outdoor cart adopts an X-shaped supporting arm unit structure to replace the existing lateral cross rod supporting mode, and has the functions of the existing like products; meanwhile, on the premise of ensuring the functions and the stability, the volume of the folded cascade outdoor cart after being stored is reduced, so that the internal space of the automobile occupied by the folded cascade outdoor cart after being stored is reduced, and the utilization rate of the internal space of the automobile is improved.

Drawings

The utility model will be described in detail hereinafter with reference to specific embodiments and with reference to the accompanying drawings, but the utility model is not limited thereto. Moreover, the structure of the foldable outdoor cart is not strictly limited by the proportion shown in the structure of the attached drawings, and the structural proportion can be properly adjusted according to needs as long as the purpose of the foldable outdoor cart can be achieved. Wherein:

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

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

fig. 3 shows a schematic structural view of a foldable outdoor cart according to an embodiment of the present invention in a stowed state.

Fig. 4 shows a schematic structural view of a 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 according to another embodiment of the present invention in an unfolded state.

Description of reference numerals:

1. a base;

2. an upper yoke;

3. a lower yoke;

4. a diagonal bar;

4.1, the upper end of the inclined rod;

4.2, the lower end of the inclined rod;

5. an axle fixing member;

6. the first upper fork arm fixes the rotating shaft;

6.2, the second upper fork arm fixes the rotating shaft;

6.1, the first lower fork arm fixes the rotating shaft;

6.3, the second lower fork arm fixes the rotating shaft;

6.4, a sliding shaft;

7. a wheel shaft jack;

7.1, fitting jacks;

8. a chute;

9. a wheel;

10. an accessory;

11. a telescopic pull rod;

12. a telescopic cross bar;

13. and (4) locking the cap.

14. Connecting rod

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

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, fall within the scope of the present invention.

It should be noted that the terms "upper", "middle", "lower", "left", "right", "upward", "downward", "upper", "lower", "transverse", "longitudinal", "lateral", "both ends", "upper", "lower", "inner end", "outer end", "distal", "proximal", "side by side" and "parallel" used in the present invention have the meanings commonly understood by those skilled in the art, and thus, will not be described herein. In addition, the scientific and technical terms "connect", "fix", "insert", "interlock", "open", "store", "retract", "vertical state", "upright state", and the like used in the present invention have meanings that are generally understood by those skilled in the art, and are not described in detail herein. In the present invention, the "use state", "open state" or "working state" refers to the state that the foldable outdoor cart is fully opened.

The utility model provides a foldable outdoor cart, wherein the foldable outdoor cart is capable of being simply folded or disassembled during storage and conveniently recombined or unfolded during reuse, but the foldable outdoor cart is not limited to the meaning and also comprises a broad concept, for example, the foldable outdoor cart can be unfolded to a proper degree (not completely unfolded) according to actual needs during use, and in addition, the foldable outdoor cart is wholly foldable or partially foldable.

The foldable outdoor cart of the present invention comprises: the base, the support arm fixing rotating shaft, the support arm unit, the wheel shaft fixing piece and the wheel.

The number of the above-mentioned bases for connecting the respective support arm units is not particularly limited, and may be 1 or 2 or more as long as the bases can facilitate the opening of the respective support arm units and can support the goods carried by the cart.

The shape of the base is not particularly limited as long as the technical effects of the present invention can be achieved, and may be appropriately adjusted according to the width of the support arm unit, and the like, and the shape of the base of the outdoor cart of the present invention includes, but is not limited to, octagons (e.g., irregular octagons, regular octagons), hexagons (e.g., irregular hexagons, regular hexagons), pentagons (e.g., irregular pentagons, regular pentagons), and quadrigons (e.g., parallelograms, rectangles, squares), and the like, when viewed from the top. When the outdoor cart of the present invention has four support arm units, the base shape may be a quadrilateral or a hexagon, preferably a hexagon. Further, the shape may be circular or the like as long as the support arm unit can be firmly connected. There is no particular limitation on the size of the base as long as the technical effects of the present invention can be achieved. Further, the size of the base may be appropriately large to function as a support arm unit supporting the X-shaped arrangement after the fully opened, instead of the diagonal bar.

The number of the support arm units is not particularly limited as long as the entire outdoor cart can be smoothly opened and stabilized, and may be singular or even plural, and is preferably even plural from the viewpoint of stability, and specifically, the number of the support arm units may be four, six, eight, and the like, and is preferably four from the viewpoint of simple structure, light weight, and easy storage.

The length of the support arm unit may be different from each other or may be the same as each other, and is not particularly limited as long as the entire cart can be stabilized in the use state. For example, when the number of the above-described support arm units is four, in the use state, it is preferable that the four support arm units are arranged in an X shape (here, the case of "cross" is also included); when the lengths of the support arm units are different, it is preferable that the lengths of the opposite support arm units are the same, wherein one set of the opposite support arm units is longer and the other set of the opposite support arm units is shorter, but not limited thereto. More preferably, the length of each support arm unit is identical. In this case, when the outdoor cart of the present invention is in a use state, the support arm units are fully opened, and if the distal ends (ends far from the base) of the support arm units are connected, it is preferable that the support arm units form a square, a rectangle, a parallelogram, or the like.

Each of the support arm units described above includes two or more support arms (e.g., 3, 4, 5, 6, 7, 8, 9, 10, etc.). There is no particular limitation on the arrangement position between the support arms included in each support arm unit, for example, when each support arm unit includes 2 support arms, the 2 support arms are arranged up and down or in parallel (juxtaposed on a plane extending transversely to the plane on which the support arms are located), and when the 2 support arms are arranged up and down, the two support arms are an upper support arm and a lower support arm, respectively; when each support arm unit comprises 3 support arms, the 3 support arms can be arranged in an upper, middle and lower row; when each support arm unit includes 4 support arms, the 4 support arms may be arranged up, down, left, and right. But the arrangement manner is not limited thereto.

According to the foldable outdoor cart, the supporting arms contained in the supporting arm units are respectively connected with the base and the wheel axle fixing piece through the supporting arm fixing rotating shafts, the supporting arms and the supporting arm fixing rotating shafts are connected to form connecting points, the connecting points are sequentially connected to form an internal space, the space can be in the same plane or can be three-dimensional, the shape of the space is not particularly limited, and the space can be random or regular, and the foldable outdoor cart can be opened and stored smoothly as long as the foldable outdoor cart can be guaranteed.

As a preferred embodiment, the support arm unit is connected to the base and the axle holder by 4 support arm fixing rotation shafts, respectively, and the support arm fixing rotation shafts or their extended lines form 4 intersections with a plane perpendicular to the support arm fixing rotation shafts, and these intersections are connected in sequence to form a parallelogram. However, the number of the support arm fixing rotation shafts is not limited to this, as long as the fixing connection with the support arm unit can be ensured, and the opening and storage of the cart can be smoothly achieved.

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 base are substantially maintained at the same level when the support arm units are opened. Preferably, the support arm unit is a yoke having a shape of "Y", but is not limited thereto.

In order to keep the support arm of each support arm unit of the present invention in a fixed position when it is opened, a slide groove may be provided on each support arm so that the slide shaft of the lower end of the diagonal rod can move freely in the slide groove, and at this time, the length of the slide groove is such that the slide shaft of the lower end of the diagonal rod just abuts on the end of the slide groove when the support arm unit is fully opened, thereby fixing the entire support arm unit, but it is not limited to this manner. For example, the surface area of the base may be increased appropriately, so that the edge of the base abuts against the portion of the support arm unit close to the base, thereby preventing the support arm unit from tilting upward further.

The upper end of the diagonal rod is connected with the base, and the specific connection mode is not particularly limited as long as the upper end of the diagonal rod can be fixed and the lower end of the diagonal rod can be abutted against the tail end of the sliding groove. For example, the upper end of the diagonal rod may be fixed to the base, or may be fixed to the upper yoke fixed rotation shaft, but is not limited thereto.

In the foldable outdoor cart according to the present invention, the positional relationship between the support arm unit and the base in the use state is not particularly limited as long as the support arm unit can be smoothly opened and stored and the support arm unit can fully support the base after being fully opened. In the use state, the support arm unit may be located below the plane of the base or on the same plane as the base. In a preferred embodiment, for example, the upper surface of the support arm unit and the upper surface of the base are held at substantially the same level.

For the foldable outdoor stroller of the present invention, the support arm unit is preferably a yoke unit and/or a link. The support arm unit may be entirely a yoke unit, may be entirely a link, or may be partly a yoke unit and partly a link. The structure of each link is not particularly limited, and may be, for example, a single link or a double link, as long as the foldable outdoor cart can be smoothly opened and stored.

For example, in order to maintain each link of the present invention in a fixed position when the link is opened, a sliding groove may be provided on each link such that the sliding shaft of the lower end of the diagonal rod is freely movable in the sliding groove, and at this time, the length of the sliding groove is such that the sliding shaft of the lower end of the diagonal rod just abuts against the end of the sliding groove when the link is fully opened, thereby fixing the entire link, but not limited thereto. For example, the surface area of the base can be increased appropriately, so that the edge of the base abuts against the portion of the connecting rod close to the base, thereby blocking the connecting rod from tilting further upwards.

As a preferred mode of the present invention, the present invention provides a foldable outdoor cart, comprising four yoke units arranged in an X-shape, each yoke unit being connected to a base and an axle fixing member respectively through a yoke fixing rotation shaft; wherein linkage is formed between the yoke of each yoke unit during opening and storage of the foldable outdoor stroller.

Particularly, in the opening process of the foldable outdoor cart, the structure of the fork arm unit is opened, the upper surface of the fork arm unit and the upper surface of the base are basically kept on the same horizontal plane, and the structure of the foldable outdoor cart is kept stable when the foldable outdoor cart is completely opened; in the process of storing the fork arm unit, an upward pulling force is applied to the base, the structure of the fork arm unit starts to retract, and when the fork arm unit and the wheel shaft fixing piece are completely retracted, the fork arm unit and the wheel shaft fixing piece are in a vertical state, preferably a vertical state.

According to a preferred embodiment of the utility model, as shown in fig. 1 and 2, the foldable outdoor cart comprises eight forks which are arranged in an upper and lower two-layer layout and arranged in an X-shape when fully opened, wherein the upper layer comprises four upper forks (2) and the lower layer comprises four lower forks (3), each upper fork (2) and each corresponding lower fork (3) form a set of double forks (i.e. a fork unit) and four sets of double forks (i.e. four fork units), two ends of the upper forks (2) are respectively connected with the base (1) and the axle fixing member (5) through a first upper fork fixing rotating shaft (6) and a second upper fork fixing rotating shaft (6.2), two ends of the lower forks (3) are respectively connected with the base (1) and the axle fixing member (5) through a first lower fork fixing rotating shaft (6.1) and a second lower fork fixing rotating shaft (6.3), so that the yokes can rotate along the shaft, the upper yoke (2) and the lower yoke (3) in each yoke unit are connected with a corresponding first upper yoke fixed rotating shaft (6), a second upper yoke fixed rotating shaft (6.2), a first lower yoke fixed rotating shaft (6.1) and a second lower yoke fixed rotating shaft (6.3), the first upper yoke fixed rotating shaft (6), the second upper yoke fixed rotating shaft (6.2), the first lower yoke fixed rotating shaft (6.1), the second lower yoke fixed rotating shaft (6.3) or the extension line of the first upper yoke fixed rotating shaft (6), the extension line of the second upper yoke fixed rotating shaft (6.2), the extension line of the first lower yoke fixed rotating shaft (6.1), the extension line of the first lower yoke fixed rotating shaft (6.3) and the first upper yoke fixed rotating shaft (6), the second upper yoke fixed rotating shaft (6.2), the first lower yoke fixed rotating shaft (6.1), The planes of the fixed rotating shafts (6.3) of the second lower fork arms respectively form 4 intersection points, and the 4 intersection points are sequentially connected to form a parallelogram (in the same plane).

The foldable outdoor cart of the present invention comprises two states: an open state (or an operating state) and a storage state. As shown in fig. 1-3, in the opening and storage process of the foldable outdoor cart, the upper fork arm (2) and the lower fork arm (3) of each fork arm unit form linkage; an inclined rod (4) is arranged between an upper fork arm (2) and a lower fork arm (3) of each fork arm unit, the upper end (4.1) of the inclined rod is connected with a first upper fork arm fixed rotating shaft (6), and the lower end (4.2) of the inclined rod is connected with a sliding shaft (6.4) in a sliding groove (8), so that the sliding shaft (6.4) can freely move in the sliding groove (8); the wheel (9) and the accessory (10) are respectively inserted into the wheel shaft inserting hole (7) and the accessory inserting hole (7.1) on the wheel shaft fixing piece (5), and the wheel (9) is fixed on the wheel shaft fixing piece (5).

According to a preferred embodiment of the utility model, in the opening process of the foldable outdoor cart, as shown in fig. 1 and 2, the structure of four groups of double-fork arms is opened, the lower end (4.2) of the inclined rod in each group of double-fork arms and the sliding shaft (6.4) move along the sliding chute (8), when the foldable outdoor cart is completely opened, the sliding shaft (6.4) drives the lower end (4.2) of the inclined rod to move to the outer end (the end far away from the base (1)) of the sliding chute (8) and abut against the outer end of the sliding chute (8), and the foldable outdoor cart plays a supporting role when the base (1) is pressed downwards; in the process of containing the telescopic arm, as shown in fig. 3, upward pulling force is applied to the base (1), the four groups of double-fork arms are retracted under the action of gravity, the lower end (4.2) of the inclined rod and the sliding shaft (6.4) in each group of double-fork arms move towards the inner end (the end close to the base (1)) of the inclined rod along the sliding groove (8), when the two groups of double-fork arms are completely retracted, the inclined rod (4) and the sliding shaft (6.4) move to the inner end of the sliding groove (8), and the four groups of double-fork arms are in a roughly parallel state.

According to a preferred embodiment of the utility model, wherein the wheel (9) is integrally formed with the axle holder (5), the fitting (10) is secured to the axle holder (5) in other removable manners including, but not limited to, screwing, snap-locking, etc. In addition, the wheels (9) can be provided with a brake and/or braking device to play a role in braking and stably parking the outdoor cart.

As a preferred embodiment of the utility model, wherein the fitting (10) is an elongated bar, rod or plate (e.g. an elongated narrow plate), a shade, preferably a tarpaulin, is arranged around the circumference of the fitting (10).

The size range of the space for the articles accommodated by the foldable outdoor cart is suitably selected according to the size of the base, the yoke unit and the fitting (10) of the present invention, and may be, for example, 600mm × 300mm × 300mm to 2000mm × 1000mm × 1000mm, wherein the size is, as one embodiment, 830mm × 460mm × 500mm, but is not limited thereto.

The material of the fitting (10) is not particularly limited as long as the portability of the outdoor cart of the present invention is not affected, and the material includes, but is not limited to, plastic, metal (e.g., aluminum alloy, etc.). The material of the tarpaulin is not particularly limited, and those skilled in the art can select a proper tarpaulin according to the need. The tarpaulin may include, but is not limited to, woven cloth and non-woven cloth, and may include, but is not limited to, a material manufactured with polyvinyl chloride (PVC) plastic or nylon type.

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

According to a preferred embodiment of the utility model, wherein the foldable outdoor cart is a foldable outdoor dolly, such as an outdoor camping dolly/trailer, a supermarket shopping dolly/trailer, a portable shopping dolly/trailer or the like.

According to the utility model, the foldable outdoor cart has the functions of similar products on the market, and adopts a multi-fork-arm structure to replace the traditional lateral cross supporting structure; under the prerequisite of assurance function and stability, the volume after the outdoor shallow is accomodate is compressed, improves the space utilization of the shared car of the outdoor shallow after accomodating, especially camping vehicle.

In actual use, referring to fig. 4, the foldable outdoor cart of the present invention further comprises a telescopic pull rod (11) for manual driving, and in addition, the fittings (10) and the telescopic cross rod (12) form a support structure, which is fixed by a locking cap (13), and the whole support structure is surrounded by tarpaulin and the like to form an inner storage space.

Fig. 5 is a schematic structural view of another embodiment of a foldable outdoor cart in an unfolded state, wherein the foldable outdoor cart uses four sets of links (14) (two links), and in a use state, the four sets of links are completely unfolded and abut against a base, thereby fixing the four sets of links (14).

The present invention has been described in detail above by means of preferred embodiments. Various modifications, adaptations, and equivalents may occur to those embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Those skilled in the art will appreciate that such modifications, improvements and equivalents may still fall within the scope of the utility model.

Claims

1. Foldable outdoor cart, characterized in that it comprises: a base (1), a supporting arm fixing rotating shaft, a supporting arm unit, a wheel shaft fixing piece (5) and wheels (9),

the foldable outdoor cart comprises a plurality of support arm units, wherein each support arm unit comprises a support arm, and each support arm unit is mutually connected with a base (1) and a wheel axle fixing piece (5) through a support arm fixing rotating shaft;

the wheels (9) are fixed on the wheel axle fixing part (5), when in use, the wheels (9) support the whole foldable outdoor cart,

in the process of opening and accommodating the foldable outdoor cart, the support arms of each support arm unit are linked.

2. Foldable outdoor trolley according to claim 1, characterized in that each of said support arm units is interconnected with the base (1) and the axle fixture (5) by 4 support arm fixed rotation axes, said support arm fixed rotation axes or extensions thereof forming 4 intersection points with a plane perpendicular to said support arm fixed rotation axes, which intersection points are connected in sequence forming a parallelogram.

3. Foldable outdoor cart according to claim 1, wherein said support arm units are four, the four support arm units being arranged in an X-shape in use-state.

4. Foldable outdoor cart according to claim 3,

when each support arm unit comprises two support arms, the two support arms are an upper support arm and a lower support arm respectively;

when each of the support arm units includes a plurality of support arms, the support arms include an upper support arm, a lower support arm, and other support arms, and the other support arms are longitudinally juxtaposed between the upper support arm and the lower support arm, or the other support arms are transversely juxtaposed on a transversely extending plane of a plane in which the upper support arm and/or the lower support arm are respectively located.

5. Foldable outdoor cart according to any of claims 1 to 4, wherein the support arm units are yoke units and/or links.

6. Foldable outdoor cart according to claim 5, wherein said support arm units are yoke units, each of said yoke units comprising two yokes, being in a two-layer layout, the upper layer of the foldable outdoor cart comprising four upper yokes (2) and the lower layer comprising four lower yokes (3), the two ends of said upper yokes (2) being interconnected to the base (1) and to the axle fixture (5) via a first upper yoke fixed rotation axis and a second upper yoke fixed rotation axis, respectively, the two ends of said lower yokes (3) being interconnected to said base (1) and to said axle fixture (5) via a first lower yoke fixed rotation axis and to said first upper yoke fixed rotation axis, to a second upper yoke fixed rotation axis and to said first lower yoke fixed rotation axis, respectively, said upper yokes (2) and said lower yokes (3), A second lower yoke fixed rotating shaft is connected, the first and second upper yoke fixed rotating shafts and the first and second lower yoke fixed rotating shafts or the extension lines of the first and second upper yoke fixed rotating shafts, the extension lines of the first and second lower yoke fixed rotating shafts and a plane perpendicular to the first and second upper yoke fixed rotating shafts and the first and second lower yoke fixed rotating shafts form 4 intersection points, and the 4 intersection points are sequentially connected to form a parallelogram;

wherein during opening and storage of the foldable outdoor stroller, a linkage is formed between the upper yoke (2) and the lower yoke (3) of each yoke unit; an inclined rod (4) is arranged between the upper fork arm (2) and the lower fork arm (3) of each fork arm unit, and each inclined rod (4) comprises an inclined rod upper end (4.1), an inclined rod lower end (4.2) and a sliding shaft (6.4).

7. Foldable outdoor trolley according to any of the claims 1-4, characterized in that the edge of the base (1) abuts against the part of the support arm unit close to the base (1) in the use position.