Multi-functional carrier

Abstract

The utility model relates to a kind of multifunctional carriers, the carrier includes bearing frame and multiple wheel assemblies, and accommodating space is formed on the bearing frame, all the wheel assemblies are respectively detachably connected with the bearing frame, wherein, the carrier has first working mode and second working mode, in the first working mode, all the wheel assemblies are relatively fixed with the bearing frame, and the carrier is supported on support surface by the wheel assembly;In the second working mode, all the wheel assemblies are relatively separated from the bearing frame, and the carrier is supported on support surface by the bottom frame.The carrier is especially suitable for accommodating pets, so that users can carry pets by placing pets on the carrier, or directly use it as a pet cage, which can be used for multiple purposes.

Description

Technical Field

[0001] This utility model relates to the field of transportation technology, specifically to a multi-functional vehicle. Background Technology

[0002] Pet strollers are primarily designed for convenient travel with pets, allowing users to place their pets inside and push them around. While current pet strollers come in various structures, they are generally limited to pushing and pushing, with relatively simple functions and applicable scenarios. Furthermore, most pet strollers suffer from inconvenient folding mechanisms and large folded dimensions, making them unsuitable for everyday use. Utility Model Content

[0003] The purpose of this invention is to provide a multi-functional vehicle.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multifunctional vehicle, the vehicle including a support frame and multiple wheel assemblies, the support frame having an accommodating space, and all the wheel assemblies being detachably connected to the support frame, wherein the vehicle has a first working mode and a second working mode, in the first working mode, all the wheel assemblies are relatively fixed to the support frame, and the vehicle is supported on a support surface by the wheel assemblies; in the second working mode, all the wheel assemblies are relatively separated from the support frame, and the vehicle is supported on the support surface by the support frame, wherein the bottom of the accommodating space has a horizontally extending support surface, and in the first working mode and the second working mode, the extending direction of the support surface is parallel to each other.

[0005] Preferably, the load-bearing frame includes a base frame, the accommodating space is formed above the base frame, and the plurality of wheel assemblies are detachably connected to the base frame; the vehicle also includes a towing frame, the towing frame having a towing end and a connecting end disposed at opposite ends in its own length direction, the connecting end being detachably connected to the base frame, and the vehicle also has a third working mode, in which the towing frame is located in front of the load-bearing frame, and the connecting end is fixedly connected to the base frame.

[0006] In some embodiments, the plurality of wheel assemblies include a first wheel assembly disposed at the front of the support frame and a second wheel assembly disposed at the rear of the support frame, wherein, in the third operating mode, the first wheel assembly is detached from the support frame.

[0007] In some embodiments, the front of the base frame has a connector, and the connecting end is detachably plugged into the connector. The connector is provided on at least one side of the load-bearing frame in the left-right direction, and the traction frame is located outside the load-bearing frame in the left-right direction.

[0008] In some embodiments, the support frame includes a base frame and a support frame disposed on the base frame, wherein the support frame is detachably or non-detachably disposed from the base frame; And / or, the height of one end of the accommodating space is greater than or equal to the height of the other end; And / or, the size of the lower end of the accommodating space is greater than or equal to the size of the upper end.

[0009] In some embodiments, the support frame has an unfolded state and a folded state, wherein the support frame includes a first side frame and a second side frame spaced apart on the base frame along a first direction, and the first side frame and the second side frame are respectively movable relative to the base frame to approach the base frame.

[0010] In some embodiments, the support frame further includes a top frame, wherein one end of the first side frame is rotatably connected to one end of the base frame, one end of the second side frame is rotatably connected to the other end of the base frame, and the top frame is rotatably connected between the first side frame and the second side frame. In the unfolded state, the first side frame, the top frame, the second side frame, and the base frame form the accommodating space. In the folded state, the first side frame, the top frame, and the second side frame are folded together above the base frame. And / or, the heights of the first side frame and the second side frame are both less than or equal to the dimensions of the base frame along the first direction, so that in the folded state, the first side frame and the second side frame do not extend beyond the outer edge of the base frame in the first direction.

[0011] In some embodiments, in the unfolded state, the first side frame extends obliquely upward toward the second side frame, the second side frame extends obliquely forward upward, the length of the top frame is less than or equal to the length of the base frame, and / or, the top frame is arranged to extend downward gradually from the first side frame toward the second side frame; and / or, in the folded state, the second side frame, the top frame, and the first side frame rotate sequentially and fold up above the base frame.

[0012] In some embodiments, the support frame is further provided with an assist structure. The assist structure is provided at least one of the following four locations: the rotatable connection between the base frame and the first side frame, the rotatable connection between the first side frame and the top frame, the rotatable connection between the top frame and the second side frame, and the rotatable connection between the second side frame and the base frame. The assist structure is used to drive the two mutually rotatably connected components to rotate, thereby assisting the support frame to change from the unfolded state to the folded state.

[0013] In some embodiments, the assist structure includes a torsion spring, wherein the first side frame and the top frame are rotatably connected about a rotation axis, the torsion spring is sleeved on the rotation axis, and the two ends of the torsion spring abut against the first side frame and the top frame respectively to drive them to rotate relative to each other.

[0014] In some embodiments, the vehicle further includes a push-pull frame connected to the upper part of the support frame. In the first operating mode, the push-pull frame extends backward at an angle from bottom to top; in the second operating mode, the push-pull frame and the support frame retract towards each other. And / or, the support frame is further provided with a lifting member, so as to move the support frame by lifting the lifting member in the second working mode; And / or, the vehicle is a pet vehicle, and the accommodating space is configured to accommodate at least the body of a pet.

[0015] Due to the application of the above technical solution, this utility model has the following advantages: The multifunctional carrier provided in this utility model embodiment can be driven by being supported on a support surface by a wheel assembly, or it can be used independently by supporting itself on a support surface after the wheel assembly is removed. In both working modes, the extension direction of the bearing surface at the bottom of the accommodating space is parallel to each other. This carrier is particularly suitable for accommodating pets, allowing users to place their pets on the carrier for travel, or it can be used directly as a pet cage, achieving multiple uses in one item. At the same time, the comfort and stability of the pet while riding in the carrier are not affected after the working mode of the carrier is changed. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a vehicle according to an embodiment of the present invention; Figure 2This utility model Figure 1 A side view of the vehicle's structure; Figure 3 for Figure 1 An exploded view of the vehicle's structure; Figure 4 for Figure 1 A three-dimensional structural diagram of the vehicle in its first working mode; Figure 5 for Figure 4 A side view of the vehicle's structure; Figure 6 for Figure 4 A three-dimensional structural diagram of the vehicle switching to the second working mode; Figure 7 for Figure 6 A side view of the vehicle's structure; Figure 8 for Figure 6 A schematic diagram of the three-dimensional structure of the vehicle after the push-pull frame is flipped downwards; Figure 9 for Figure 8 A side view of the vehicle's structure; Figure 10 In order to be in Figure 4 Based on the vehicle, a connection diagram of the towing frame is shown; Figure 11 for Figure 10 Based on this, a side view of the structure after the traction frame is connected to the load-bearing frame; Figure 12 for Figure 11 Based on the schematic diagram of the three-dimensional structure after the first round of components have been removed, the vehicle is in the third working mode; Figure 13 for Figure 12 A side view of the vehicle's structure; Figure 14 A three-dimensional structural diagram of the load-bearing frame in its unfolded state and unfolded relative to the push-pull frame; Figure 15 for Figure 14 A schematic diagram of the side view structure; Figure 16 for Figure 14 This is a schematic diagram showing the push-pull frame after being flipped and folded relative to the load-bearing frame. Figure 17 for Figure 16 A schematic diagram of the side view structure; Figure 18 A three-dimensional structural diagram illustrating the folding process of the support frame; Figure 19 for Figure 18 A schematic diagram of the side view structure; Figure 20 A schematic diagram of the three-dimensional structure of the load-bearing frame in a folded state; Figure 21 for Figure 20 A schematic diagram of the side view structure; In the attached diagrams above: 1. Base frame; 11. Base rod; 12. First crossbar; 121. Second wheel axle; 122. Limiting plate; 13. Second crossbar; 14. First connector; 141. Insertion part; 142. First mounting hole; 143. First limiting part; 15. Second connector; 151. Second mounting hole; 152. Second limiting part; 2. Top frame; 21. Top rod; 22. Top crossbar; 3. First side frame; 31. First side rod; 32. Connecting crossbar; 4. Second side frame; 41. Second side pole; 41a. Lower pole section; 41b. Upper pole section; 5. Push-pull bracket; 51. Push rod; 6. First wheel assembly; 61. Universal joint; 62. Wheel frame; 7. Second wheel assembly; 8. Traction frame; 81. Traction end; 82. Connecting end; 9. Torsion spring; X1, First axis line; X2, Second axis line; X3, Third axis line; X4, Fourth axis line. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art. It should be noted that the description of these embodiments is for the purpose of aiding understanding the present invention, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0019] In this document, the terms “up,” “down,” “left,” “right,” etc., refer to the orientation as observed by the user when the vehicle is being pushed by the user. They are used only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] Figures 1 to 21 The diagrams are drawn to scale. To keep the instructions concise, the proportions of each component are not listed individually. However, the proportions and positions of each component should be considered part of the contents of this instruction manual.

[0021] See Figures 1 to 3The multi-functional vehicle provided in the illustrated embodiment includes a load-bearing frame, multiple wheel assemblies, a push-pull frame 5, and a towing frame 8.

[0022] The support frame has storage spaces for accommodating items or pets. All wheel assemblies are detachably connected to the support frame, allowing the support frame to be used independently or with multiple wheel assemblies installed.

[0023] The multiple wheel assemblies include a first wheel assembly 6 disposed at the front of the support frame and a second wheel assembly 7 disposed at the rear of the support frame. Specifically, the support frame includes at least a base frame 1, and an accommodating space is formed above the base frame 1. Both the first wheel assembly 6 and the second wheel assembly 7 are provided in two sets, one on the left and one on the right. The two sets of first wheel assemblies 6 are respectively installed on the left and right sides of the bottom front of the base frame 1, and the two sets of second wheel assemblies 7 are respectively installed on the left and right sides of the bottom rear of the base frame 1.

[0024] The push-pull frame 5 is rotatably connected to the upper part of the load-bearing frame. It can be opened or closed relative to the load-bearing frame. When the push-pull frame 5 is open relative to the load-bearing frame, the user can push and pull the vehicle by holding the push-pull frame 5.

[0025] The traction frame 8 has a traction end 81 and a connecting end 82 located at opposite ends along its length. The connecting end 82 can be detachably connected to the base frame 1.

[0026] The vehicle provided in this embodiment has at least a first working mode, a second working mode, and a third working mode, which are as follows: In the first working mode, such as Figure 4 , Figure 5 As shown, in this first operating mode, all wheel assemblies are mounted on and fixed relative to the support frame. The vehicle is supported on the bearing surface by two sets of first wheel assemblies 6 and two sets of second wheel assemblies 7, enabling the vehicle to be used as a mobile vehicle. In this first operating mode, the push-pull frame 5 opens relative to the support frame, specifically extending gradually backward and upward from the upper part of the support frame, allowing the user to stand behind the vehicle and hold the push-pull frame 5 to push the vehicle.

[0027] In the second working mode, such as Figure 8 , Figure 9 As shown, all wheel assemblies are separated from the support frame, and the vehicle is supported on a support surface via a base frame 1. In this second working mode, the support frame directly supports the support surface, such as the ground, and provides accommodating space, allowing it to be used as a pet cage. When switching from the first working mode to this second working mode, as... Figures 6 to 7As shown, firstly, the first wheel assembly 6 and the second wheel assembly 7 are removed from the support frame. Then, the push-pull frame 5 is flipped relative to the support frame to retract it, thus completing the switching of the working mode. In some embodiments, a lifting component (not shown in the figure) can also be provided on the support frame, so that the support frame can be moved by lifting the lifting component when the vehicle is in the second working mode.

[0028] In the third working mode, such as Figure 12 , Figure 13 As shown, the tow frame 8 is located in front of the support frame, and the connecting end 82 of the tow frame 8 is fixedly connected to the front of the base frame 1. The first wheel assembly 6 is detached from the bottom of the support frame. At this time, the towing end 81 can be fixed to the rear of a mobile vehicle such as a bicycle. When the bicycle or other mobile vehicle moves forward, the tow frame 8 will pull the vehicle, causing it to move forward synchronously. When switching from the first working mode to this third working mode, as... Figures 10 to 13 As shown, the connecting end 82 of the traction frame 8 can be fixedly connected to the front of the base frame 1 first, and then the first wheel assembly 6 on both sides can be removed to complete the switching of the working mode.

[0029] The carrier provided in this embodiment is mainly for accommodating pets, and the accommodating space is large enough to hold a pet. The bottom of the accommodating space on the support frame has a horizontally extending support surface, on which the pet is supported when it is in the accommodating space. In the first working mode, where multiple wheel assemblies jointly support the support surface, and in the second working mode, where the base frame 1 is directly supported on the same support surface, the extension directions of the aforementioned support surface are parallel to each other, maintaining stable support for the pet. The pet will not tilt to one side when in the accommodating space, and the comfort and stability of the pet while riding in the carrier will not be affected after the working mode of the carrier changes. It should be noted that the horizontal extension of the aforementioned support surface means that it extends approximately horizontally, not an absolutely horizontal plane. The portion of the bottom of the base frame 1 that supports the support surface is located in the same plane, and this plane is parallel to the support surface. Thus, when the carrier switches between the first and second working modes, only the height of the support surface changes, while the extension direction remains unchanged, and the pet's supporting state in the accommodating space remains unchanged.

[0030] Referring to the accompanying drawings, in this embodiment, the chassis 1 includes two base rods 11 located on the left and right sides and extending in the front-rear direction, a first crossbar 12 fixedly disposed between the rear parts of the two base rods 11, and a second crossbar 13 fixedly disposed between the front parts of the two base rods 11. The first crossbar 12 and the second crossbar 13 are mainly used to connect the base rods 11 on both sides, so that the chassis 1 as a whole has good rigidity and load-bearing capacity. The first crossbar 12 is also used to install the second wheel assembly 7. Specifically, the two ends of the first crossbar 12 extend outwards along the axial direction to form two second wheel axles 121. Two sets of second wheel assemblies 7 are rotatably mounted on the second wheel axles 121. A limiting piece 122 is also formed between the base rods 11 and the second wheel axles 121 to limit the axial position of the second wheel assembly 7, thereby facilitating the installation of the second wheel assembly 7.

[0031] In this vehicle, the front of the base frame 1 has a connector, and the connecting end 82 of the towing frame 8 is detachably plugged into the connector. At least one side of the load-bearing frame in the left-right direction has a connector, and after the towing frame 8 is connected to the connector, it is located outside the load-bearing frame in the left-right direction. In this embodiment, the left side of the base frame 1 has a first connector 14, and the right side has a second connector 15. Both the first connector 14 and the second connector 15 are located on the front end of the base rod 11 on their respective sides.

[0032] Both the first connector 14 and the second connector 15 are used to detachably connect the first wheel assembly 6. The first wheel assembly 6 is a caster wheel assembly, which has a wheel frame 62 and a caster shaft 61 extending vertically above the wheel frame 62. The first connector 14 has a first mounting hole 142 for axial insertion of the caster shaft 61, and the second connector 15 has a second mounting hole 151 for axial insertion of the caster shaft 61. The first wheel assembly 6 can be installed and disassembled by inserting or removing the caster shaft 61 into or from the first mounting hole 142 and the second mounting hole 151. The first mounting hole 142 and the second mounting hole 151 are located inside the corresponding side base rod 11 in the left-right direction.

[0033] The first connector 14 is also used to detachably connect the traction frame 8. Specifically, the first connector 14 is provided with a plug-in portion 141 for connecting the connecting end 82 of the traction frame 8. Here, the plug-in portion 141 is specifically a plug-in hole extending in the front-rear direction. The plug-in hole is located on the outside of the base rod 11 in the left-right direction. The connecting end 82 can be inserted into the plug-in hole axially. Then, the connecting end 82 is locked in the plug-in hole by fasteners such as screws, thereby fixing the traction frame 8 to the front of the base frame 1. Conversely, when it is necessary to remove the traction frame, it is only necessary to remove the fasteners and then pull the traction frame 8 forward.

[0034] The vehicle can be switched between the three working modes mentioned above, and the switching operation is very convenient. This allows users to push the vehicle, place it directly on the ground as a pet cage, or connect it to the rear of a mobile vehicle via the tow frame 8 for pulling. It can be used for multiple purposes and meet the different usage needs of users in different usage scenarios.

[0035] In this vehicle, the supporting frame includes a base frame 1 and a support frame mounted on the base frame 1. The support frame is detachably connected to the base frame 1 or non-detachably mounted. The support frame can independently form the accommodating space, or the support frame and the base frame 1 can cooperate to form the aforementioned accommodating space. Specifically, the height of one end of the accommodating space is greater than or equal to the height of the other end, and the lower dimension of the accommodating space is greater than or equal to the upper dimension. This configuration can accommodate the body shape characteristics of pets.

[0036] Referring to the accompanying drawings, in the carrier provided in this embodiment, the supporting frame can also be folded to have an unfolded state and a folded state. Specifically, the support frame has a first side frame 3 and a second side frame 4 spaced apart on the base frame along a first direction. The first side frame 3 and the second side frame 4 can move relative to the base frame 1 and can move closer to the base frame 1. The first direction can be a left-right direction or a front-back direction. In this embodiment, a front-back direction is used, wherein the first side frame 3 is located on the front side and the second side frame 4 is located on the rear side.

[0037] Referring to the accompanying drawings, in this embodiment, one end of the first side frame 3 is rotatably connected to the front of the base frame 1 about a first axis X1, and one end of the second side frame 4 is rotatably connected to the rear of the base frame 1 about a second axis X2. When the load-bearing frame is folded, the first side frame 3 rotates and retracts relative to the base frame 1 about the first axis X1, and the second side frame 4 rotates and retracts relative to the base frame 1 about the second axis X2. The heights of both the first side frame 3 and the second side frame 4 are less than or equal to the front-rear dimension of the base frame 1, ensuring that the first side frame 3 and the second side frame 4 do not extend beyond the outer edge of the base frame 1 in the front-rear direction when folded, thus controlling the length of the folded load-bearing frame. The first axis X1 and the second axis X2 are parallel to each other and both extend in the left-right direction. In some embodiments, the first axis X1 and the second axis X2 can also be configured to have a certain height difference in the height direction, so that the first side frame 3 and the second side frame 4 can be stacked and retracted onto the base frame 1 in a relatively flat manner.

[0038] Referring to the accompanying drawings, the support frame also includes a top frame 2, one end of which is rotatably connected to the other end of the first side frame 3 about a third axis X3, and the other end of the top frame 2 is rotatably connected to the other end of the second side frame 4 about a fourth axis X4. The load-bearing frame is in its unfolded state, as shown... Figure 14 , Figure 15 As shown, both the first side frame 3 and the second side frame 4 extend vertically, and the first side frame 3, the top frame 2, the second side frame 4, and the bottom frame 1 form an accommodating space; the load-bearing frame is in a folded state, as shown... Figure 20 , Figure 21 As shown, the first side frame 3, the top frame 2, and the second side frame 4 fold together above the base frame 1, making the structure of the folded support frame very flat, thus facilitating daily storage and carrying for users. A locking mechanism (not shown in the figure) is also provided on the support frame to lock the support frame in the unfolded state described above. This locking mechanism can be specifically located at the rotatable connection point between any two of the four components: the first side frame 3, the top frame 2, the second side frame 4, and the base frame 1.

[0039] In this embodiment, as Figure 14 , Figure 15 As shown, when the support frame is in the unfolded state, the first side frame 3 extends backward from bottom to top, and the second side frame 4 extends forward from bottom to top. The length of the top frame 2 is less than the length of the bottom frame 1, so that the support frame presents a trapezoidal structure that is smaller at the top and larger at the bottom, which is in line with the body shape of the pet when placed in it.

[0040] Specifically, see Figure 3 As shown, the first side frame 3 has two first side rods 31 respectively disposed on the left and right sides, and a connecting crossbar 32 fixed between the two first side rods 31. The lower part of the first side rod 31 is rotatably connected to the first connecting member 14 or the second connecting member 15 on the corresponding side around the first axis X1. The first connecting member 14 is provided with a first limiting part 143, and the second connecting member 15 is provided with a second limiting part 152. When the two first side rods 31 are connected to the first connecting member 14 and the second connecting member 15, they are located behind the first limiting part 143 and the second limiting part 152 respectively, so that the first limiting part 143 and the second limiting part 152 respectively limit the two first side rods 31 when they rotate forward.

[0041] The top frame 2 includes two top rods 21 disposed on the left and right sides and a top crossbar 22 fixed between the two top rods 21; the second side frame 4 includes two second side rods 41 disposed on the left and right sides. On each side, the top rod 21 is rotatably connected between the upper end of the first side rod 31 and the upper end of the second side rod 41, and the lower end of the second side rod 41 is rotatably connected to the limiting piece 122 at the rear of the bottom rod 11. The top crossbar 22 is not only used to improve the rigidity of the top frame 2, but also to lift the vehicle. For example, in the second working mode, the vehicle can be transferred by pulling the top crossbar 22.

[0042] With the support frame in its extended state, the second side bar 41 has an upper bar section 41b and a lower bar section 41a connected along its length, forming an obtuse angle between them, thus connecting the base frame 1 and the top frame 2. The support frame is also equipped with a cloth cover (not shown) to surround the outside of the accommodating space. This cloth cover is open at least rearward, allowing the pet to enter and exit the accommodating space through the space between the two second side bars 41, or to extend its head backward out of the accommodating space while inside.

[0043] The push-pull frame 5 is U-shaped and has two push rods 51 on the left and right sides respectively. The two push rods 51 are located on the outside of the second side rod 41 on the corresponding side in the left and right direction, and the lower part of the push rod 51 is rotatably connected to the upper part of the second side rod 41, so that it can be rotated upward to open or rotated downward to close relative to the second side frame 4.

[0044] See Figures 14 to 21 As shown, the support frame is also provided with an assist structure. At least one of the following four locations is provided with the aforementioned assist structure to drive the two mutually rotatably connected components to rotate, thereby assisting the support frame to change from an unfolded state to a folded state. This assists the folding operation of the support frame after it is unlocked.

[0045] In this embodiment, the aforementioned assist structure specifically employs a torsion spring 9. The first side frame 3 and the top frame 2 are rotatably connected around a rotation axis, the axis of which is the third axis X3. The torsion spring 9 is sleeved on the rotation axis, and its two ends abut against the first side frame 3 and the top frame 2 respectively, driving them to rotate relative to each other. Thus, see... Figure 14 As shown, when the load-bearing frame needs to be folded up, after the push-pull frame 5 is flipped downwards to fold together with the second side frame 4, the locking mechanism on the load-bearing frame is unlocked. Under the action of the torsion spring 9 and the gravity of each component, as shown... Figure 18 , Figure 19 As shown, the top frame 2 flips downwards relative to the first side frame 3, causing the second side frame 4 and the push-pull frame 5 to rotate downwards and retract towards the base frame 1. Subsequently, the first side frame 3 is driven to flip backwards, thus completing the folding of the load-bearing frame. In the folded state, the second side frame 4, top frame 2, and first side frame 3 are sequentially retracted above the base frame 1, presenting as shown. Figure 20 , Figure 21 As shown, its structure is very flat and compact. At the same time, the auxiliary structure makes the folding operation simpler, more convenient and faster, bringing convenience to users' daily use.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art. In the event of any contradiction or inconsistency between the definitions used herein and those contained in other published documents, the definitions used herein shall prevail.

[0047] It should also be noted that "rotational connection" in the above embodiments refers to pivot connection, unless the context clearly indicates other rotational connection methods.

[0048] As indicated in this specification and claims, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0049] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0050] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0051] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made based on the essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A multi-functional vehicle, characterized in that: The carrier includes a support frame and multiple wheel assemblies. An accommodating space is formed on the support frame. All wheel assemblies are detachably connected to the support frame. The carrier has a first operating mode and a second operating mode. In the first operating mode, all wheel assemblies are relatively fixed to the support frame, and the carrier is supported on a support surface by the wheel assemblies. In the second operating mode, all wheel assemblies are relatively separated from the support frame, and the carrier is supported on the support surface by the support frame. The bottom of the accommodating space has a horizontally extending support surface, and the extension direction of the support surface is parallel to each other in both the first and second operating modes.

2. The multi-functional vehicle according to claim 1, characterized in that: The load-bearing frame includes a base frame, the accommodating space is formed above the base frame, and the plurality of wheel assemblies are detachably connected to the base frame; the vehicle also includes a towing frame, the towing frame having a towing end and a connecting end disposed at opposite ends in its own length direction, the connecting end being detachably connected to the base frame, and the vehicle also has a third working mode, in which the towing frame is located in front of the load-bearing frame, and the connecting end is fixedly connected to the base frame.

3. The multi-functional vehicle according to claim 2, characterized in that: The plurality of wheel assemblies include a first wheel assembly disposed at the front of the load-bearing frame and a second wheel assembly disposed at the rear of the load-bearing frame, wherein, in the third operating mode, the first wheel assembly is detached from the load-bearing frame; The front of the base frame has a connector, and the connecting end is detachably plugged into the connector. The connector is provided on at least one side of the load-bearing frame in the left-right direction, and the traction frame is located outside the load-bearing frame in the left-right direction.

4. The multi-functional vehicle according to claim 1, characterized in that: The supporting frame includes a base frame and a support frame disposed on the base frame, wherein the support frame is detachably connected to the base frame or is not detachably disposed therebetween; and / or, the height of one end of the accommodating space is greater than or equal to the height of the other end; and / or, the dimension of the lower end of the accommodating space is greater than or equal to the dimension of the upper end.

5. The multi-functional vehicle according to claim 4, characterized in that: The supporting frame has an unfolded state and a folded state. The support frame includes a first side frame and a second side frame that are spaced apart on the base frame along a first direction. The first side frame and the second side frame are respectively movable relative to the base frame to move closer to the base frame.

6. The multi-functional vehicle according to claim 5, characterized in that, The support frame further includes a top frame, wherein one end of the first side frame is rotatably connected to one end of the base frame, one end of the second side frame is rotatably connected to the other end of the base frame, and the top frame is rotatably connected between the first side frame and the second side frame. In the unfolded state, the first side frame, the top frame, the second side frame, and the base frame form the accommodating space. In the folded state, the first side frame, the top frame, and the second side frame are folded together above the base frame. And / or, the heights of the first side frame and the second side frame are both less than or equal to the dimensions of the base frame along the first direction, so that in the folded state, the first side frame and the second side frame do not extend beyond the outer edge of the base frame in the first direction.

7. The multi-functional vehicle according to claim 6, characterized in that: In the unfolded state, the first side frame extends obliquely upward toward the second side frame, the second side frame extends obliquely forward upward, the length of the top frame is less than or equal to the length of the base frame, and / or, the top frame is arranged to gradually extend downward from the first side frame toward the second side frame; and / or, in the folded state, the second side frame, the top frame, and the first side frame rotate and fold together in sequence above the base frame.

8. The multi-functional vehicle according to claim 6, characterized in that: The support frame is also provided with an assist structure. The assist structure is provided at least at one of the following four locations: the rotatable connection between the base frame and the first side frame, the rotatable connection between the first side frame and the top frame, the rotatable connection between the top frame and the second side frame, and the rotatable connection between the second side frame and the base frame. The assist structure is used to drive the two rotatably connected components to rotate, thereby assisting the support frame to change from the unfolded state to the folded state.

9. The multi-functional vehicle according to claim 8, characterized in that: The assist structure includes a torsion spring, wherein the first side frame and the top frame are rotatably connected about a rotation axis, the torsion spring is sleeved on the rotation axis, and the two ends of the torsion spring abut against the first side frame and the top frame respectively to drive the two to rotate relative to each other.

10. The multi-functional vehicle according to any one of claims 1 to 9, characterized in that: The vehicle also includes a push-pull frame connected to the upper part of the support frame. In the first working mode, the push-pull frame extends backward at an angle from bottom to top; in the second working mode, the push-pull frame and the support frame retract into each other. And / or, the support frame is further provided with a lifting member, so as to move the support frame by lifting the lifting member in the second working mode; And / or, the vehicle is a pet vehicle, and the accommodating space is configured to accommodate at least the body of a pet.

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