Outdoor multifunctional portable vehicle and use method thereof

Abstract

The invention relates to the technical field of portable hand trailers, in particular to an outdoor multifunctional portable vehicle and a using method thereof.The outdoor multifunctional portable vehicle comprises a vehicle frame, oxford cloth and a handle, a bearing mechanism is installed below the vehicle frame through a bottom frame, and the bearing mechanism comprises a torsional spring shaft rotationally connected to the bottom frame; a U-shaped rod for supporting the oxford fabric is mounted on the surface of the torsional spring shaft; a first-stage stone blocking rod is installed below the front end of the vehicle frame, a first gear is connected to the side, facing the vehicle frame, of the first-stage stone blocking rod, and the first gear is rotationally connected to the bottom frame. Through the linkage design of the self-adaptive torsion spring shaft and the U-shaped rod, the falling gravity of the oxford fabric is automatically counteracted through the elastic force of the torsion spring, so that stable supporting of the oxford fabric is formed, and the situation that the oxford fabric rubs with or is cut apart from a ground obstacle in the moving process of a vehicle body after falling is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of portable hand trailers, and in particular to an outdoor multifunctional portable vehicle and a use method thereof. Background Art

[0002] With the increasing popularity of outdoor activities, camping, picnics, beach trips, etc. have become important ways for people to relax and have fun. In these scenarios, carrying a large amount of equipment and supplies is often a problem that cannot be ignored. In order to meet this demand, camping carts, as a portable and multi-functional means of transportation, have gradually gained favor among users. Its main features are simple structure, easy folding, strong carrying capacity, and the ability to adapt to a variety of terrains. However, the existing camping carts still have some technical deficiencies during use. For example, during the use of the foldable camping cart, the foldable alloy structure is unfolded to form a body, and Oxford cloth is installed in the frame of the body to form a carrying container; although this camping cart has the advantages of being portable and easy to store.

[0003] However, Oxford cloth is prone to falling when carrying a large amount of items, causing the cloth to directly contact the ground or objects on the ground. Although Oxford cloth has certain wear resistance and load-bearing capacity, when driving on rugged terrain (such as gravel roads), protruding stones may pierce or cut the Oxford cloth, reducing its service life.

[0004] To this end, a kind of outdoor multifunctional portable vehicle and its use method are proposed to solve the above-mentioned problems Summary of the invention

[0005] Technical issues solved

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides an outdoor multifunctional portable vehicle and a method for using the same, which can solve the problem that the Oxford cloth in the prior art is prone to falling when carrying a large number of items, resulting in the Oxford cloth being pierced or cut by stones on the ground when in contact with the ground.

[0007] Technical Solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] The present invention provides an outdoor multifunctional portable vehicle, comprising a vehicle frame, an oxford cloth and a handle; a supporting mechanism is installed below the vehicle frame through a bottom frame, the supporting mechanism comprises a torsion spring shaft rotatably connected to the bottom frame, a U-shaped rod for supporting the oxford cloth is installed on the surface of the torsion spring shaft; a primary stone-blocking rod is installed below the front end of the vehicle frame, a first gear is connected to the side of the primary stone-blocking rod facing the vehicle frame, and the first gear is rotatably connected to the bottom frame; a second gear is connected to the surface of the U-shaped rod in the supporting mechanism close to one side of the primary stone-blocking rod, and the U-shaped rod is connected to the torsion spring shaft through the second gear; the second gear is meshingly connected to the first gear.

[0010] Furthermore, a cut-proof net is installed on the surface of the U-shaped rod.

[0011] Furthermore, three groups of underframes are arranged below the frame, and two groups of symmetrically distributed supporting mechanisms are arranged between two adjacent groups of the underframes.

[0012] Furthermore, two U-shaped rods close to one side of the primary stone retaining rod are provided with a slide groove inside, a slider is inserted inside the slide groove, a first spring is connected to the surface of the slider, and the other end of the first spring is connected to the inner wall of the slide groove;

[0013] An anti-cut mechanism is installed under the supporting mechanism, and the anti-cut mechanism includes a hinged rod rotatably connected to the sliding block, the other end of the hinged rod passes through the interior of the sliding groove and is rotatably connected to a mounting sleeve, and the surface of the mounting sleeve is connected to an insertion rod; the lower surface of the U-shaped rod away from the primary stone-blocking rod is rotatably connected to a sleeve, and the other end of the insertion rod is inserted in the sleeve; one end of the insertion rod inserted in the sleeve is connected to a second spring, and the other end of the second spring is connected to the inner wall of the sleeve, and a secondary stone-blocking rod is connected between the two groups of hinged rods.

[0014] Furthermore, the handle is arranged as a T-shaped structure and is hollow inside, a sliding rod is inserted inside the upper horizontal part of the handle, an opening is arranged on the lower end surface of the vertical part of the handle, the opening faces one side of the primary stone-blocking rod, and a guide wheel is rotatably connected to the opening; a steel cable is wrapped around the surface of the sliding rod located inside the handle, and the lower end of the steel cable passes through the vertical part of the handle, and bypasses the guide wheel to be connected to the primary stone-blocking rod.

[0015] Furthermore, one end of the slide bar passes through the outside of the handle and is connected to a rotating handle, and the slide bar can be controlled to rotate in the handle by rotating the handle.

[0016] Furthermore, a limit block is provided on the surface of the upper horizontal portion of the handle, and a limit groove matched with the limit block is provided on the surface of the rotating handle.

[0017] A method for using an outdoor multifunctional portable vehicle comprises the following steps:

[0018] Step 1: Expand and lock the frame, and install the Oxford cloth inside the frame;

[0019] Step 2: Place the goods inside the Oxford cloth and fix them. After loading, let them stand for several seconds until the torsion spring shaft completes the adaptive adjustment.

[0020] Step 3: Observe the falling degree of the Oxford cloth, and use the steel cable to adjust the support degree of the U-shaped rod on the Oxford cloth;

[0021] Step 4: Confirm that the primary and secondary rock retaining bars form continuous protection;

[0022] Step 5: Use the handle to pull or push the vehicle to move.

[0023] Beneficial Effects

[0024] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0025] 1. This solution uses an adaptive torsion spring shaft and U-shaped rod linkage design to automatically offset the gravity of the Oxford cloth falling through the torsion spring elastic force, thereby forming a stable support for the Oxford cloth, preventing the Oxford cloth from rubbing against or cutting against ground obstacles during the movement of the vehicle body after it falls;

[0026] Second, this solution can effectively block obstacles on the road surface by setting up the first-level stone-blocking rod and the second-level stone-blocking rod, so as to prevent the Oxford cloth loaded with goods from moving over the obstacles after falling, causing friction or cutting. The first-level stone-blocking rod adjusts its height synchronously with the supporting mechanism through gear linkage to form the first line of defense; the spring of the second-level stone-blocking rod automatically adjusts the protective gap through the rotating structure to provide secondary protection; and the anti-cutting net serves as the last barrier to prevent sharp objects from directly contacting the Oxford cloth;

[0027] 3. This solution integrates a steel cable retracting and releasing device through a handle, supports manual and precise adjustment of the supporting strength of the supporting mechanism, and reduces the intensity of continuous operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a schematic top view of the overall structure in an embodiment of the present invention;

[0030] Figure 2 It is a bottom view schematic diagram of the overall structure in an embodiment of the present invention;

[0031] Figure 3 It is a schematic front view of the overall structure in an embodiment of the present invention;

[0032] Figure 4 It is a schematic diagram of the structural installation of the supporting mechanism and the anti-cutting mechanism in an embodiment of the present invention;

[0033] Figure 5 It is a schematic diagram of the installation of the supporting mechanism and the stone retaining rod structure in an embodiment of the present invention;

[0034] Figure 6 It is a schematic diagram of the structural composition of the supporting mechanism in an embodiment of the present invention;

[0035] Figure 7 It is a schematic diagram of the handle structure composition in an embodiment of the present invention;

[0036] Figure 8 for Figure 7 A schematic diagram of the enlarged structure in the middle.

[0037] The numbers in the figure represent: 1. frame; 101. base frame; 2. Oxford cloth; 3. handle; 301. slide bar; 302. guide wheel; 303. rotating handle; 304. limit block; 305. limit slot; 4. primary stone retaining rod; 401. first gear; 5. supporting mechanism; 501. torsion spring shaft; 502. U-shaped rod; 503. anti-cut net; 504. second gear; 505. slide slot; 506. slider; 507. first spring; 6. anti-cut mechanism; 601. articulated rod; 602. mounting sleeve; 603. insertion rod; 604. sleeve; 605. second spring; 606. secondary stone retaining rod; 7. steel cable. DETAILED DESCRIPTION

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, the terms "upper", "lower", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0042] The present invention will be further described below in conjunction with the embodiments.

[0043] Embodiment 1:

[0044] Please refer to the attached Figure 1-8 This solution proposes an outdoor multifunctional portable vehicle, including a frame 1, Oxford cloth 2 and a handle 3.

[0045] The frame 1 is made of metal material, usually steel or aluminum alloy, and adopts a foldable structure, which is convenient for storage and carrying; when folded, the volume is small and suitable for being placed in the trunk or storage space of a car; when unfolded, it forms the body of the camping trailer, providing overall support and stability; when unfolded, there are crossed metal support rods on both sides, which enhance the stability of the camping trailer and provide support for the oxford cloth 2; and the frame 1 may be equipped with a folding locking device for fixing the unfolded or folded state of the camping trailer to ensure that it will not be accidentally folded during use.

[0046] After the frame 1 is unfolded, the Oxford cloth 2 is installed inside the frame of the frame 1 to form a loading container that can hold items needed for camping; after the frame 1 is folded, the Oxford cloth 2 can also be removed and folded, thereby facilitating the carrying and transportation of the portable vehicle as a whole. Universal wheels are installed at the four corners below the frame 1 to provide the camping trailer with mobility, suitable for driving on flat ground, grass or sandy terrain. At the same time, a handle 3 is rotatably installed at the front end of the frame 1. When the frame 1 is unfolded, the handle 3 is used to pull or push the vehicle body. The handle design is ergonomic and improves the comfort of use.

[0047] Specifically, three groups of bottom frames 101 are arranged below the frame 1 to connect the overall structure of the frame 1 to facilitate folding and unfolding of the frame 1 .

[0048] When the Oxford cloth 2 is installed on the unfolded frame 1, the support force provided by the bottom frame 101 in the middle position to the Oxford cloth 2 is limited. When a large number of items are loaded in the Oxford cloth 2, the Oxford cloth 2 is affected by the weight of the items, and both sides of the Oxford cloth 2 will fall, causing both sides of the Oxford cloth 2 to protrude from the bottom of the frame 1 and directly contact the ground, thereby causing the lower surface of the Oxford cloth 2 to be worn when the frame 1 moves, resulting in damage to the Oxford cloth 2. For this reason, a supporting mechanism 5 is installed below the frame 1, and the Oxford cloth 2 can be supported by the supporting mechanism 5, so that when a large number of items are loaded in the Oxford cloth 2 and fall, the supporting mechanism 5 can reduce the falling range of the Oxford cloth 2, thereby providing safe support for the Oxford cloth 2, and avoiding the lower surface of the Oxford cloth 2 from contacting the ground and causing wear.

[0049] More specifically, a supporting mechanism 5 is installed below the frame 1 to adjust the degree of the Oxford cloth 2 and ensure the stability of the Oxford cloth 2 .

[0050] The supporting mechanism 5 includes a torsion spring shaft 501 rotatably connected to the base frame 101, and a U-shaped rod 502 is installed on the surface of the torsion spring shaft 501; the U-shaped rod 502 always has a tendency to rotate toward the side of the Oxford cloth 2 under the action of the torsion spring inside the torsion spring shaft 501, so that the U-shaped rod 502 can lift the Oxford cloth 2 upward. When a large amount of goods are loaded in the Oxford cloth 2 and it falls, the gravity of the goods on the Oxford cloth 2 needs to overcome the torsion spring elastic force in the torsion spring shaft 501, thereby forming a force cancellation, effectively reducing the falling amplitude of the Oxford cloth 2, and effectively protecting the lower surface of the Oxford cloth 2 from friction. The U-shaped rod 502 is set as a U-shaped structure, and an anti-cutting net 503 is installed on the surface of the U-shaped rod 502. The anti-cutting net 503 can increase the contact area between the supporting mechanism 5 and the bottom of the Oxford cloth 2, thereby more effectively supporting the Oxford cloth 2.

[0051] Two groups of symmetrically distributed supporting mechanisms 5 are arranged between two adjacent groups of bottom frames 101 to share the gravity of the Oxford cloth 2 caused by the weight of the goods, thereby providing stable support for the lower sides of the Oxford cloth 2 .

[0052] The difference is that a first-level stone-blocking rod 4 is installed at the lower front end of the frame 1, and the first-level stone-blocking rod 4 is also set to a U-shaped structure, and the first-level stone-blocking rod 4 is connected to the side of the frame 1 with a first gear 401, and the first gear 401 is rotatably connected to the base frame 101; and the surface of the U-shaped rod 502 in the supporting mechanism 5 close to the side of the first-level stone-blocking rod 4 is connected to the second gear 504, and the U-shaped rod 502 is connected to the torsion spring shaft 501 through the second gear 504; the second gear 504 and the first gear 401 are meshingly connected.

[0053] When the Oxford cloth 2 falls due to a large amount of cargo, it will push the U-shaped rod 502 connected to the torsion spring shaft 501 to rotate on the base frame 101, thereby driving the second gear 504 to rotate; when the second gear 504 rotates, it will mesh with the first gear 401 to rotate, thereby pushing the first-level stone-blocking rod 4 to rotate on the base frame 101; and the U-shaped rod 502 and the first gear 401 rotate in opposite directions, while the rotation amplitude is the same. Then, after the Oxford cloth 2 falls a certain distance due to the gravity of the cargo, it will synchronously push the U-shaped rod 502 and the first-level stone-blocking rod 4 to rotate at the same angle, thereby keeping the first-level stone-blocking rod 4 and the bottom of the U-shaped rod 502 flush.

[0054] At this time, when the frame 1 is moving, if there are protruding stones on the road surface and the height of the stones will cause friction or cutting on the bottom of the Oxford cloth 2, the protruding stones will also cause friction on the first-level stone-blocking rod 4. Conversely, the lower plane of the first-level stone-blocking rod 4 will contact the protruding stones, so that when the frame 1 is moving, the first-level stone-blocking rod 4 will be blocked and limited by the protruding stones, thereby preventing the frame 1 from moving over the protruding stones, which will cause friction or cutting on the bottom of the Oxford cloth 2. And through the meshing action of the second gear 504 and the first gear 401, the gap between the first-level stone-blocking rod 4 and the ground after rotation is always the same as the distance between the Oxford cloth 2 and the ground after falling, so that when the Oxford cloth 2 is allowed, no matter how much cargo is loaded, during the movement of the frame 1, the stones on the ground that will cause friction or cutting on the bottom surface of the Oxford cloth 2 will be blocked by the first-level stone-blocking rod 4.

[0055] Furthermore, an anti-cutting mechanism 6 is installed below the supporting mechanism 5. When the frame 1 is moving, the ground is uneven, resulting in the four universal wheels below the frame 1 having different heights. For example, when the universal wheel at the left front of the frame 1 is tilted, some protruding stones will pass over the primary stone-blocking rod 4, and then the Oxford cloth 2 will be rubbed or cut by the stones passing over the primary stone-blocking rod 4 while the frame 1 continues to move. The anti-cutting mechanism 6 can prevent the stones passing over the primary stone-blocking rod 4 from rubbing or cutting the lower surface of the Oxford cloth 2.

[0056] Furthermore, the two U-shaped rods 502 in the supporting mechanism 5 close to the side of the first-level stone-blocking rod 4 are provided with a slide groove 505 inside, and a slider 506 is inserted into the slide groove 505. The surface of the slider 506 is connected to a first spring 507, and the other end of the first spring 507 is connected to the inner wall of the slide groove 505; under the elastic force of the slide groove 505, the slider 506 is always pushed to the side close to the first-level stone-blocking rod 4. The anti-cutting mechanism 6 includes a hinged rod 601 rotatably connected to the slider 506, the other end of the hinged rod 601 penetrates from the inside of the slide slot 505 and is rotatably connected to a mounting sleeve 602, and a plug rod 603 is connected to the surface of the mounting sleeve 602; a sleeve 604 is rotatably connected to the lower surface of the U-shaped rod 502 away from the primary stone-blocking rod 4, and the other end of the plug rod 603 is inserted into the sleeve 604; at the same time, one end of the plug rod 603 inserted into the sleeve 604 is connected to a second spring 605, and the other end of the second spring 605 is connected to the inner wall of the sleeve 604. A secondary stone-blocking rod 606 is connected between the two sets of hinged rods 601.

[0057] When the Oxford cloth 2 is not loaded with a large amount of goods, the U-shaped rod 502 will rotate upward and remain horizontal under the action of the torsion spring in the torsion spring shaft 501; when the Oxford cloth 2 is loaded with a part of the goods, the U-shaped rod 502 will overcome the elastic force of the torsion spring in the torsion spring shaft 501 under the action of the weight of the goods, and then rotate, so that the U-shaped rod 502 tilts at a certain angle. At this time, the plug rod 603 will always push the hinge rod 601 to rotate on the slider 506 under the elastic force of the second spring 605, so that the lower end of the hinge rod 601 protrudes from the lower end of the U-shaped rod 502, so that when the frame 1 moves on an uneven ground, even if some stones will pass over the first stone blocking rod 4, they will be blocked by the second stone blocking rod 606, because the gap between the second stone blocking rod 606 and the ground is smaller than the gap between the U-shaped rods 502, thereby forming a second level of anti-friction and cutting protection for the lower surface of the Oxford cloth 2.

[0058] And as the weight of the goods in the Oxford cloth 2 increases, the falling amplitude of the Oxford cloth 2 will also increase, thereby increasing the downward rotation angle of the U-shaped rod 502; at this time, the slider 506 will overcome the elastic force of the first spring 507 under the action of gravity, and slide downward a distance inside the slide groove 505, thereby controlling the upper end of the hinged rod 601 to rotate clockwise on the slider 506; and push the insertion rod 603 to slide into the sleeve 604 through the installation sleeve 602, and squeeze the second spring 605, and finally control the sleeve 604 to rotate counterclockwise on the U-shaped rod 502; thereby making the installation sleeve 602 gradually approach the hinge point of the sleeve 604 and the U-shaped rod 502, and always keep the gap between the bottom of the secondary stone retaining rod 606 and the ground smaller than the gap between the sleeve 604 and the U-shaped rod 502 and the ground, thereby forming an effective support and protection for the Oxford cloth 2.

[0059] It is worth noting that the arrangement of the U-shaped rod 502, the primary stone-blocking rod 4 and the secondary stone-blocking rod 606 enables the frame 1 to completely block the stones in the gap between the wheels below during driving, thereby improving the comprehensiveness of the anti-cut protection of the Oxford cloth 2; at the same time, the anti-cut net 503 can not only effectively support the Oxford cloth 2, but also increase the anti-cut protection capability of the lower surface of the Oxford cloth 2, thereby providing the final safety guarantee for the Oxford cloth 2.

[0060] The handle 3 is arranged as a T-shaped structure with a hollow interior, a sliding rod 301 is inserted into the interior of the upper horizontal part of the handle 3, one end of the sliding rod 301 passes through the outside of the handle 3 and is connected to a rotating handle 303, and the sliding rod 301 can be controlled to rotate inside the handle 3 by rotating the handle 303; an opening is arranged on the lower end surface of the vertical part of the handle 3, the opening faces one side of the primary stone-blocking rod 4, and a guide wheel 302 is rotatably connected to the opening; a steel cable 7 is wound around the surface of the sliding rod 301 located inside the handle 3, and the lower end of the steel cable 7 passes through the vertical part of the handle 3, and bypasses the guide wheel 302 to be connected to the primary stone-blocking rod 4.

[0061] When the frame 1 is moving and a large amount of goods are loaded in the Oxford cloth 2 and fall, the handle 303 is turned to control the slide bar 301 to rotate, and then the steel cable 7 is wound and rolled up, so that the steel cable 7 can pull the first-level stone-blocking rod 4 to rotate counterclockwise, and then the U-shaped rod 502 is controlled to rotate toward the side of the Oxford cloth 2 and support the Oxford cloth 2; and then the falling amplitude of the Oxford cloth 2 is reduced by manual force, thereby facilitating the rapid movement of the frame 1 and reducing the friction between the lower surface of the Oxford cloth 2 and the ground. A limit block 304 is provided on the surface of the upper horizontal part of the handle 3, and a limit slot 305 matched with the limit block 304 is provided on the surface of the rotating handle 303; the handle 3 can not only control the slide bar 301 to rotate in the handle 3, but also pull the slide bar 301 to slide in the handle 3, so that the slide bar 301 can reel the steel cable 7 to a certain length, and when the U-shaped rod 502 is pulled to support the Oxford cloth 2, the limit block 304 can be inserted into the limit slot 305, so that the slide bar 301 can be limited and fixed, so as to maintain the continuous support of the U-shaped rod 502 to the Oxford cloth 2, without manual operation, thereby improving the functionality of the cart.

[0062] Embodiment 2:

[0063] Based on the first embodiment, this solution proposes a method for using an outdoor multifunctional portable vehicle, comprising the following steps:

[0064] Step 1: unfold and lock the frame 1, and install the Oxford cloth 2 inside the frame of the frame 1;

[0065] Step 2: Place the goods inside the Oxford cloth 2 and fix them. After loading, let them stand for several seconds until the torsion spring shaft 501 completes the adaptive adjustment.

[0066] Step 3: Observe the falling degree of the bottom of the Oxford cloth 2, and use the steel cable 7 to adjust the support degree of the U-shaped rod 502 on the Oxford cloth 2;

[0067] Step 4: Confirm that the primary rock retaining rod 4 and the secondary rock retaining rod 606 form a continuous protection;

[0068] Step 5: Use the handle 3 to pull or push the vehicle body to move.

[0069] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. An outdoor multifunctional portable vehicle, comprising a frame (1), Oxford cloth (2) and a handle (3), characterized in that: A supporting mechanism (5) is installed below the frame (1) through a bottom frame (101), the supporting mechanism (5) comprising a torsion spring shaft (501) rotatably connected to the bottom frame (101), a U-shaped rod (502) for supporting the Oxford cloth (2) being installed on the surface of the torsion spring shaft (501); a first-level stone-blocking rod (4) is installed below the front end of the frame (1), a first gear (401) is connected to the first-level stone-blocking rod (4) on the side facing the frame (1), the first gear (401) is rotatably connected to the bottom frame (101); a second gear (504) is connected to the surface of the U-shaped rod (502) in the supporting mechanism (5) close to the first-level stone-blocking rod (4), the U-shaped rod (502) is connected to the torsion spring shaft (501) through the second gear (504); the second gear (504) is meshingly connected to the first gear (401).

2. The outdoor multifunctional portable vehicle according to claim 1, characterized in that: An anti-cutting net (503) is installed on the surface of the U-shaped rod (502).

3. The outdoor multifunctional portable vehicle according to claim 1, characterized in that: Three groups of bottom frames (101) are arranged below the vehicle frame (1), and two groups of symmetrically distributed supporting mechanisms (5) are arranged between two adjacent groups of bottom frames (101).

4. The outdoor multifunctional portable vehicle according to claim 3, characterized in that: The two U-shaped rods (502) close to one side of the primary stone retaining rod (4) are both provided with a slide groove (505), a slider (506) is inserted into the slide groove (505), a first spring (507) is connected to the surface of the slider (506), and the other end of the first spring (507) is connected to the inner wall of the slide groove (505); An anti-cutting mechanism (6) is installed below the supporting mechanism (5), and the anti-cutting mechanism (6) includes a hinged rod (601) rotatably connected to the slider (506), the other end of the hinged rod (601) penetrates through the interior of the slide groove (505) and is rotatably connected to a mounting sleeve (602), and the surface of the mounting sleeve (602) is connected to an insertion rod (603); the lower surface of the U-shaped rod (502) away from the primary stone-blocking rod (4) is rotatably connected to a sleeve (604), and the other end of the insertion rod (603) is inserted into the sleeve (604); at the same time, one end of the insertion rod (603) inserted in the sleeve (604) is connected to a second spring (605), and the other end of the second spring (605) is connected to the inner wall of the sleeve (604), and a secondary stone-blocking rod (606) is connected between the two groups of hinged rods (601).

5. The outdoor multifunctional portable vehicle according to claim 1, characterized in that: The handle (3) is configured as a T-shaped structure with a hollow interior, a sliding rod (301) is inserted into the interior of the upper horizontal portion of the handle (3), an opening is provided on the lower end surface of the vertical portion of the handle (3), the opening faces one side of the primary stone-blocking rod (4), and a guide wheel (302) is rotatably connected to the opening; a steel cable (7) is wound around the surface of the sliding rod (301) located inside the handle (3), the lower end of the steel cable (7) passes through the vertical portion of the handle (3), and bypasses the guide wheel (302) to be connected to the primary stone-blocking rod (4).

6. The outdoor multifunctional portable vehicle according to claim 5, characterized in that: One end of the slide bar (301) passes through the outside of the handle (3) and is connected to a rotating handle (303). The slide bar (301) can be controlled to rotate inside the handle (3) by rotating the handle (303).

7. The outdoor multifunctional portable vehicle according to claim 6, characterized in that: A limit block (304) is provided on the surface of the upper horizontal portion of the handle (3), and a limit slot (305) matching the limit block (304) is provided on the surface of the rotating handle (303).

8. A method for using an outdoor multifunctional portable vehicle according to any one of claims 1 to 7, characterized in that: The following steps are involved: Step 1: unfold and lock the frame (1), and install the Oxford cloth (2) inside the frame of the frame (1); Step 2: Place the goods inside the Oxford cloth (2) and fix them. After loading, let them stand for several seconds until the torsion spring shaft (501) completes the adaptive adjustment. Step 3: Observe the falling degree of the Oxford cloth (2) below, and use the steel cable (7) to adjust the support degree of the U-shaped rod (502) on the Oxford cloth (2); Step 4: Confirm that the primary rock retaining rod (4) and the secondary rock retaining rod (606) form a continuous protection; Step 5: Use the handle (3) to pull or push the vehicle body to move.

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