vehicle

Abstract

The utility model relates to a kind of carriers, including upper frame, bottom support assembly and side support assembly, the first chassis is rotatably connected with the end portion of second chassis in bottom support assembly, and rotatably arranged between the lower portion of first support and second support of side support assembly, the upper portion of first support and the upper portion of second support and the upper frame are rotatably connected;The carrier further includes connecting frame, the connecting frame is movably connected with the upper frame, the bottom support assembly and the side support assembly respectively, so that the connecting frame moves to drive the carrier between the unfolded state and the folding state conversion.When user drives connecting frame to move, it can drive the relative rotation between upper frame, bottom support assembly and side support assembly, so that the carrier is converted between the unfolded state and the folding state, and it is more convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of transportation devices, specifically to a vehicle. Background Technology

[0002] Vehicles such as strollers and trailers have brought great convenience to people traveling with children and belongings. Currently, there are various structures of vehicles on the market, and their folding methods and folded shapes are also different. However, most still have problems such as inconvenient folding operation and an uneven and compact structure after folding. Utility Model Content

[0003] The purpose of this invention is to provide a carrier with a novel structure.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A vehicle having an unfolded state and a folded state, the vehicle comprising:

[0006] upper frame;

[0007] The bottom support assembly includes a first base frame and a second base frame, wherein one end of the first base frame and the second base frame are rotatably connected;

[0008] The side support assembly includes a first bracket and a second bracket. The bottom support assembly is disposed between the first bracket and the second bracket. The other end of the first base frame is rotatably connected to the lower part of the first bracket. The other end of the second base frame is rotatably connected to the lower part of the second bracket. The upper part of the first bracket is rotatably connected to the upper part of the second bracket and the upper frame.

[0009] When the vehicle is in a folded state, the upper frame and the side support assembly are folded together, and the first base frame and the second base frame are folded together between the first bracket and the second bracket.

[0010] The vehicle also includes a connecting frame, which is movably connected to the upper frame, the bottom support assembly and the side support assembly, so that the connecting frame can move the vehicle between an unfolded state and a folded state.

[0011] In some embodiments, the connecting frame is movably connected between the first support, the first base frame and the upper frame. When the connecting frame is movable, it drives the upper frame, the first support and the first base frame to rotate relative to each other, thereby allowing the vehicle to switch between an unfolded state and a folded state.

[0012] In some embodiments, the connecting frame and the first support are intersected and rotatably connected at the intersection. When the connecting frame rotates relative to the first support, it causes the upper frame and the first base frame to rotate relative to the first support and retract or expand simultaneously.

[0013] In some embodiments, a first sliding member is rotatably connected to one end of the connecting frame, the first sliding member being slidably disposed on the first base frame along the length extension direction of the first base frame; a second sliding member is rotatably connected to the upper frame, the second sliding member being slidably disposed on the connecting frame along the length extension direction of the connecting frame.

[0014] In some embodiments, the carrier further includes a push rod frame that is foldably connected to the connecting frame. A first locking member is provided between the connecting frame, the upper frame, the first bracket, and the first base frame for locking the two together. The first locking member is linked to the push rod frame to drive the first locking member to unlock when the push rod frame is retracted relative to the connecting frame.

[0015] In some embodiments, the vehicle further includes an upper side frame, which is connected to the upper enclosure frame and / or the side support assembly. When the vehicle is in the unfolded state, the upper enclosure frame can cooperate with the upper side frame to form a circumferentially closed frame structure. The upper enclosure frame, the upper side frame, and the bottom support assembly cooperate to form a load-bearing space.

[0016] In some embodiments, one end of the upper side frame is rotatably connected to the upper frame or the side support assembly, such that when the upper side frame is flipped downward toward the second base frame, an access passage is formed on the upper side frame that connects to the carrying space and allows passengers to pass through.

[0017] In some embodiments, the vehicle further includes a foot pedal assembly, the foot pedal assembly including a foot pedal support member, the foot pedal support member being movably connected to the bottom support assembly, such that the foot pedal support member has a first state suspended below the bottom support assembly, and a second state retracted with the bottom support assembly.

[0018] In some embodiments, the foot support is connected to the first base frame and the second base frame respectively via flexible connectors. When the foot support is in the first state, the flexible connector and the foot support define a foot space below the base support assembly that allows the rider's feet to be placed. When the foot support is in the second state, the foot support is fixedly connected to the first base frame and / or the second base frame.

[0019] In some embodiments, the vehicle further includes a tow bar movably connected to the second base frame, such that the tow bar has a retracted state where it is folded up at the bottom of the side support assembly, and an open state where it extends out to one side of the bottom support assembly and is rotatable relative to the second base frame.

[0020] In some embodiments, the bottom of the bottom support assembly is provided with a connecting seat for detachable connection with the traction rod, and an adapter seat is rotatably connected to the second base frame. The traction rod includes a rod body, a handle at one end of the rod body, and a limiting end at the other end of the rod body. The rod body is slidably mounted on the adapter seat along its own length direction. When the traction rod is in the retracted state, the traction rod is engaged with the connecting seat. When the traction rod is in the open state, the traction rod is disengaged from the connecting seat, and the limiting end abuts against the adapter seat.

[0021] In some embodiments, the vehicle further includes a first wheel assembly and a second wheel assembly, the first wheel assembly being disposed at the lower part of the first support and the second wheel assembly being disposed at the lower part of the second support. When the vehicle is in a folded state, the first wheel assembly and the second wheel assembly are retracted to each other, enabling the vehicle to stand upright on the support surface.

[0022] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: The carrier provided by the present invention allows the user to drive the upper frame, bottom support assembly and side support assembly to rotate relative to each other when driving the connecting frame to move, thereby enabling the carrier to switch between unfolded and folded states, which is more convenient to operate. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a three-dimensional structural diagram of the vehicle in the unfolded state according to a specific embodiment of the present invention.

[0025] Figure 2 for Figure 1 A side view of the vehicle's structure;

[0026] Figure 3 for Figure 1 A three-dimensional structural diagram of the vehicle in its deployed state, with the tow bar in its retracted state;

[0027] Figure 4 for Figure 3 A side view of the vehicle's structure;

[0028] Figure 5 In order to be in Figure 3 A three-dimensional structural diagram showing the traction rod detached from the connecting seat;

[0029] Figure 6 for Figure 5 A side view of the vehicle's structure;

[0030] Figure 7 for Figure 3 A three-dimensional structural diagram showing the pull rod being pulled out to open the pull rod;

[0031] Figure 8 for Figure 7 A side view of the vehicle's structure;

[0032] Figure 9 for Figure 1 A three-dimensional structural diagram of the vehicle in its deployed state, with the upper frame in a horizontal position;

[0033] Figure 10 for Figure 9 A side view of the vehicle's structure;

[0034] Figure 11 for Figure 9 A three-dimensional structural diagram of the vehicle after flipping the upper side frame to an inclined state;

[0035] Figure 12 for Figure 11 A side view of the vehicle's structure;

[0036] Figure 13 for Figure 1 A three-dimensional structural diagram of the vehicle in its unfolded state, wherein the foot pedal support of the foot pedal assembly is in the first state;

[0037] Figure 14 for Figure 13 A schematic diagram of the side view structure;

[0038] Figure 15 for Figure 13 Based on this, a three-dimensional structural diagram of the vehicle after the awning is closed and the foot pedal support of the foot pedal assembly is switched to the second state;

[0039] Figure 16 for Figure 15 A side view of the vehicle's structure;

[0040] Figure 17 for Figure 1A three-dimensional structural diagram of the vehicle, in which the vehicle is in an unfolded state;

[0041] Figure 18 for Figure 17 A side view of the vehicle's structure;

[0042] Figure 19 for Figure 17 A three-dimensional structural diagram of the vehicle, in which the vehicle is in the process of folding;

[0043] Figure 20 for Figure 19 A side view of the vehicle's structure;

[0044] Figure 21 for Figure 19 A three-dimensional structural diagram of the vehicle, in which the vehicle is in a folded state;

[0045] Figure 22 for Figure 21 A side view of the vehicle's structure;

[0046] Figure 23 for Figure 21 A schematic diagram of the rear view structure of the vehicle;

[0047] In the attached diagrams above:

[0048] 1. Enclosure frame; 11. Upper enclosure frame; 111. First enclosure rod; 112. First horizontal bar; 12. Upper side frame; 121. Second enclosure rod; 122. Second horizontal bar; 13. First awning rod; 14. Second awning rod; 15. Awning;

[0049] 2. Bottom support assembly; 21. First base frame; 211. First base rod; 212. First connecting rod; 22. Second base frame; 221. Second base rod; 222. Second connecting rod; 23. Adapter seat; 24. Connecting seat;

[0050] 3. Side support assembly; 31. First bracket; 311. First support rod; 32. Second bracket; 321. Second support rod;

[0051] 4. Connecting frame; 41. Connecting rod;

[0052] 5. Pulley holder; 51. Pulley; 52. Handlebar;

[0053] 6. First sliding member; 7. Second sliding member; 8. Foot pedal assembly; 81. Foot pedal support member; 82. Flexible connector; 83. Foot pedal space; 84. Fixing member; 9. Tow bar; 91. Bar body; 92. Handle; 93. Limiting end; 10. First wheel assembly; 20. Second wheel assembly; 30. Enclosure member;

[0054] X1, First axis line; X2, Second axis line; X3, Third axis line; X4, Fourth axis line; X5, Fifth axis line; X6, Sixth axis line. Detailed Implementation

[0055] 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 intended to aid in understanding the present invention, but does not constitute a limitation thereof.

[0056] The following descriptions of front, back, left, right, up, and down directions are defined with reference to the orientation observed by the user when pushing the vehicle in its unfolded state. Their purpose is solely to clearly illustrate the relative positional relationships of the various rods / components within the vehicle. Specifically, as shown below... Figure 1 , Figure 2 Indicative markings.

[0057] Figures 1 to 23 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.

[0058] See Figures 1 to 23 The vehicle shown has an unfolded state and a folded state. The vehicle includes a frame 1, a bottom support assembly 2, and a side support assembly 3. The frame 1 includes an upper frame 11. The bottom support assembly 2 includes a first base frame 21 and a second base frame 22, with one end of the first base frame 21 and the second base frame 22 rotatably connected. The side support assembly 3 includes a first bracket 31 and a second bracket 32. The bottom support assembly 2 is located between the first bracket 31 and the second bracket 32. The other end of the first base frame 21 is rotatably connected to the lower part of the first bracket 31, and the other end of the second base frame 22 is rotatably connected to the lower part of the second bracket 32. The upper part of the first bracket 31 is rotatably connected to the upper part of the second bracket 32 ​​and the upper frame 11.

[0059] When the vehicle is in the unfolded state, the first support 31 and the second support 32 unfold relative to each other, and the first base frame 21 and the second base frame 22 extend in the front-back direction and are supported between the first support 31 and the second support 32. The enclosure frame 1 is supported above the side support assembly 3, and the side support assembly 3 and the bottom support assembly 2 form an approximately triangular structure that can provide stable support. When the vehicle is in the folded state, the upper enclosure frame 11 and the side support assembly 3 retract towards each other, and the first base frame 21 and the second base frame 22 rotate towards each other and retract between the first support 31 and the second support 32. Specifically, the first base frame 21 and the second base frame 22 are converted to extend in the vertical direction, and in the front-back direction, the first support 31, the first base frame 21, the second base frame 22 and the second support 32 retract towards each other, and the upper enclosure frame 11 and the first support 31 retract towards each other.

[0060] Referring to the accompanying drawings, the vehicle also includes a connecting frame 4, which is movably connected to the upper frame 11, the bottom support assembly 2, and the side support assembly 3, respectively. This allows the connecting frame 4 to move, enabling the vehicle to switch between an unfolded and folded state, thus simplifying the folding and unfolding operations and making the vehicle more convenient for daily use. Specifically, the connecting frame 4 is movably connected between the first support 31, the first base frame 21, and the upper frame 11. When the connecting frame 4 moves, it causes the upper frame 11, the first support 31, and the first base frame 21 to rotate relative to each other, thus allowing the vehicle to switch between an unfolded and folded state. In this embodiment, the connecting frame 4 and the first support 31 intersect and are rotatably connected at the intersection. When the connecting frame 4 rotates relative to the first support 31, it causes the upper frame 11 and the first base frame 21 to simultaneously rotate relative to the first support 31 to fold or unfold, and further causes the second base frame 22 to rotate relative to the first base frame 21 to fold or unfold, thereby enabling the entire vehicle to fold or unfold.

[0061] Referring to the accompanying drawings, in this embodiment, a first sliding member 6 is rotatably connected to one end of the connecting frame 4. The first sliding member 6 is slidably disposed on the first base frame 21 along the length extension direction of the first base frame 21. A second sliding member 7 is rotatably connected to the upper frame 11. The second sliding member 7 is slidably disposed on the connecting frame 4 along the length extension direction of the connecting frame 4. When the connecting frame 4 rotates relative to the first support 31, the first sliding member 6 slides along the first base frame 21, and the second sliding member 7 slides along the upper frame 11, thereby driving the upper frame 11 and the first base frame 21 to rotate relative to the first support 31, respectively.

[0062] In this embodiment, the upper frame 11, the first support 31, and the first base frame 21 are located on the same side of the vehicle in the front-rear direction, specifically the rear side of the vehicle. The vehicle also includes a push rod frame 5, which is foldably connected to the connecting frame 4. When the vehicle is in the unfolded state, the push rod frame 5 extends relative to the connecting frame 4, allowing the vehicle to be pushed forward by gripping the push rod frame 5 when used as a transport vehicle; when not being pushed, the push rod frame 5 can be folded relative to the connecting frame 4 to reduce its size and space occupation. Simultaneously, when opening or folding the vehicle, the operator can apply force to the push rod frame 5 to drive the connecting frame 4 to rotate relative to the first support 31, thereby causing the various components within the vehicle to rotate relative to each other, thus enabling the unfolding and folding of the vehicle.

[0063] The vehicle in this embodiment is specifically a transport vehicle, which also includes a first wheel assembly 10 and a second wheel assembly 20. The first wheel assembly 10 is located at the lower part of the first support 31, and the second wheel assembly 20 is located at the lower part of the second support 32. When the vehicle is in the unfolded state, the first wheel assembly 10 and the second wheel assembly 20 are spaced apart in the front-to-back direction. When the vehicle is folded, the first support 31 and the second support 32 rotate and retract relative to each other, causing the first wheel assembly 10 and the second wheel assembly 20 to move closer together in the front-to-back direction. When the vehicle is in the folded state, the first wheel assembly 10 and the second wheel assembly 20 retract relative to each other, enabling the vehicle to stand upright on a supporting surface such as the ground.

[0064] In the carrier provided in this embodiment, a first locking member (not shown in the figure) is provided between two of the connecting frame 4, the upper frame 11, the first support 31, and the first base frame 21 to lock them together. When the first locking member is locked, the carrier is locked in the unfolded state. The first locking member can be located at the rotatable connection between the upper frame 11 and the first support 31, between the first sliding member 6 and the first base frame 21, between the second sliding member 7 and the connecting frame 4, or at the rotatable connection between the connecting frame 4 and the first support 31, etc. The first locking member is configured to be linked with the push rod frame 5 so that when the push rod frame 5 is retracted relative to the connecting frame 4, the first locking member is unlocked, which further simplifies the folding operation of the carrier. Specifically, in this embodiment, the lower part of the push rod frame 5 is rotatably connected to the upper part of the connecting frame 4. A second locking member (not shown in the figure) is provided at the rotatable connection between the two for locking them together. A linkage structure is provided between the push rod frame 5 and the first locking member. This linkage structure can specifically include components such as a traction cable, and can specifically adopt a structure in the prior art. In this way, after the second locking member is unlocked, the first locking member can be unlocked during the process of driving the push rod frame 5 to rotate and retract relative to the connecting frame 4. Continuing to apply force to the push rod frame 5 can drive the connecting frame 4 to rotate relative to the first support 31, thereby driving the upper frame 11 and the first base frame 21 to rotate and retract relative to the first support 31.

[0065] Referring to the accompanying drawings, the vehicle's enclosure frame 1 also includes an upper side frame 12, which is connected to the upper enclosure frame 11 or the side support assembly 3. When the vehicle is in the deployed state, the upper enclosure frame 11 and the upper side frame 12 can cooperate to form a circumferentially closed frame structure. The upper side frame 12, the upper enclosure frame 11, and the bottom support assembly 2 cooperate to form a load-bearing space. In a specific configuration, a barrier 30 is also provided between the enclosure frame 1 and the bottom support assembly 2. The barrier 30 can be a flexible fabric cover, and it defines the aforementioned load-bearing space in the circumferential direction.

[0066] In this embodiment, one end of the upper side frame 12 is rotatably connected to the upper frame 11 or the side support assembly 3. This allows an access passage connecting the above-mentioned carrying space to be formed on the upper side frame 12 when the vehicle is in the unfolded state and the upper side frame 12 is flipped downward toward the second base frame 22. Passengers can enter the carrying space or get off the vehicle from the carrying space through this access passage.

[0067] Referring to the accompanying drawings, the vehicle also includes a foot pedal assembly 8, which includes a foot pedal support 81 that is movably connected to the bottom support assembly 2 in the vertical direction, such that the foot pedal support 81 has a first state in which it is suspended below the bottom support assembly 2, and a second state in which it is folded up with the bottom support assembly 2. In the first state, the foot pedal support 81 can provide support for the feet of the occupant sitting in the carrying space.

[0068] Specifically, the footrest support 81 is connected to the first base frame 21 and the second base frame 22 via a flexible connector 82. In the first state, the flexible connector 82 and the footrest support 81 cooperate to define a footrest space 83 below the base support assembly 2, allowing the rider's feet to be placed. In the second state, the footrest support 81 is fixedly connected to the first base frame 21 and / or the second base frame 22, and can provide load-bearing support together with the base support assembly 2. Here, the footrest support 81 is also provided with a fixing member 84. When changing the footrest support 81 from the first state to the second state, it is only necessary to pull the footrest support 81 upward until it is folded together with the base support assembly 2, and then lock the footrest support 81 to the first base frame 21 and / or the second base frame 22 by the fixing member 84.

[0069] Referring to the accompanying drawings, the vehicle also includes a tow bar 9, which is movably connected to the second base frame 22. The tow bar 9 has a retracted state (folded at the bottom of the base support assembly 2) and an open state (rotatable relative to the second base frame 22). This allows the tow bar 9 to be folded at the bottom of the base support assembly 2 when not in use, and opened when the vehicle needs to be towed using the tow bar 9. Specifically, the bottom of the base support assembly 2 is provided with a connecting seat 24 for detachable connection to the tow bar 9. An adapter seat 23 is rotatably connected to the second base frame 22. The tow bar 9 includes a bar body 91, a handle 92 at one end of the bar body 91, and a limiting end 93 at the other end of the bar body 91. The bar body 91 is slidably mounted on the adapter seat 23 along its length. When the tow bar 9 is in the retracted state, it engages with the connecting seat 24 to securely retract to the bottom of the bottom support assembly 2. When the tow bar 9 is in the open state, it disengages from the connecting seat 24, and the bar 91 slides out along the adapter 23, causing the limiting end 93 to abut against the adapter 23. At this time, the handle 92 can be held to drag the vehicle forward.

[0070] The following describes in detail the specific configuration of each component in the vehicle provided in this embodiment, with reference to the vehicle being in the deployed state:

[0071] Referring to the accompanying drawings, in the enclosure frame 1, both the upper enclosure frame 11 and the upper side frame 12 are U-shaped frames. The upper enclosure frame 11 includes two first enclosure rods 111 respectively located on the left and right sides and extending in the front-back direction, and a first crossbar 112 connected between one end of the two first enclosure rods 111. The upper side frame 12 includes two second enclosure rods 121 respectively located on the left and right sides and extending in the front-back direction, and a second crossbar 122 connected between one end of the two second enclosure rods 121.

[0072] The first support 31 includes two first support rods 311 respectively located on the left and right sides; the second support 32 includes two second support rods 321 respectively located on the left and right sides; the first base frame 21 and the second base frame 22 are also U-shaped frames. Specifically, the first base frame 21 includes two first base rods 211 respectively located on the left and right sides and extending in the front-back direction, and a first connecting rod 212 connecting one end of the two first base rods 211; the second base frame 22 includes two second base rods 221 respectively located on the left and right sides and extending in the front-back direction, and a second connecting rod 222 connecting one end of the two second base rods 221. Connecting crossbars (not shown in the figure) extending in the left-right direction are also fixedly connected between the two first base rods 211 and between the two second base rods 221 to improve the overall load-bearing capacity of the first base frame 21 and the second base frame 22.

[0073] The connecting frame 4 includes two connecting rods 41 located on the left and right sides and extending in the vertical direction; the push rod frame 5 is U-shaped and has two push rods 51 located on the left and right sides and extending in the vertical direction, as well as a handle rod 52 fixed between the upper parts of the two push rods 51.

[0074] The upper frame 11, the first bracket 31, the first base frame 21, the connecting frame 4, and the push rod frame 5 are all located on the same side in the front-rear direction of the vehicle, specifically the rear side; the upper side frame 12, the second bracket 32, and the second base frame 22 are located on the front side of the vehicle.

[0075] On each of the left and right sides of the vehicle, the front part of the first base rod 211 and the rear part of the second base rod 221 are rotatably connected around a first axis X1; the upper parts of the first support rod 311, the upper parts of the second support rod 321, the rear parts of the first surrounding rod 111, and the front parts of the second surrounding rod 121 are rotatably connected around a second axis X2. A rotating joint is provided at this rotating connection to allow the upper parts of the first support rod 311, the upper parts of the second support rod 321, the rear parts of the first surrounding rod 111, and the front parts of the second surrounding rod 121 to be rotatably connected and mutually locked. The internal structure of this rotating joint is not the focus of this application; it can adopt a structure from the prior art, and its internal structure will not be described in detail here.

[0076] The rear part of the first base rod 211 is rotatably connected to the lower part of the first support rod 311 around the third axis X3, and the front part of the second base rod 221 is rotatably connected to the lower part of the second support rod 321 around the fourth axis X4. The aforementioned first axis X1, second axis X2, third axis X3, and fourth axis X5 are parallel to each other and all extend horizontally in the left-right direction. In a specific configuration, the aforementioned first axis X1 is located directly below the second axis X2, and the plane between them is a vertical plane.

[0077] The connecting frame 4 is located between the two sets of first support rods 311 in the left-right direction, and the upper frame 11 is located between the two sets of connecting rods 41 in the left-right direction. The connecting rods 41 and the first support rods 311 intersect each other and are rotatably connected around the fifth axis X5 at the intersection. A first sliding member 6 is slidably provided on the first bottom rod 211 on each side. The first sliding member 6 is a sliding sleeve and is rotatably connected to the lower part of the connecting rod 41. A second sliding member 7 is rotatably connected to the first frame 111 on each side. The second sliding member 7 is also a sliding sleeve and is slidably fitted on the connecting rod 41, and it is above the fifth axis X5 on the connecting rod 41. The upper end of the connecting rod 41 extends above the upper frame 11, and the lower part of the push rod 51 is rotatably connected to the lower end of the connecting rod 41 around the sixth axis X6.

[0078] Each side of the first support rod 31 is provided with a first wheel assembly 10 at its lower part, and each side of the second support rod 32 is provided with a second wheel assembly 20 at its lower part. Here, the first wheel assembly 10 is specifically a directional wheel assembly, and the second wheel assembly 20 is specifically a swivel wheel assembly.

[0079] The enclosure frame 1 also includes a first canopy rod 13 rotatably connected to the upper enclosure frame 11 and a second canopy rod 14 rotatably connected to the upper side frame 12. A sunshade 15 is provided between the upper enclosure frame 11 and the first canopy rod 13, and between the upper side frame 12 and the second canopy rod 14. By rotating the first canopy rod 13 or the second canopy rod 14, the corresponding sunshade 15 can be opened or closed accordingly.

[0080] The foot pedal assembly 8 is located in the middle of the bottom support assembly 2 in the front-to-back direction. It is located between the first wheel assembly 10 and the second wheel assembly 20, and can provide a place for two passengers sitting opposite each other on the vehicle to place their feet. The flexible connector 82 of the foot pedal assembly 8 is connected to the first base frame 21 and the second base frame 22 respectively. When the foot pedal support 81 and the bottom support assembly 2 are folded up, they can be locked to the connecting crossbar on the first base frame 21 or the second base frame 22 by the fastener 84.

[0081] A transition seat 23 is rotatably mounted at the center of the front side of the second base frame 22, specifically at the center of the second connecting rod 222. A connecting seat 24 is fixedly mounted on the connecting crossbar of the second base frame 22. This connecting seat 24 is a locking seat that can engage with the rod body 91 of the traction rod 9, thereby fixing the traction rod 9 relative to the second base frame 22. The rod body 91 of the traction rod 9 is designed to be telescopic, with its larger diameter section engaging with the connecting seat 24 and sliding with the transition seat 23.

[0082] In this embodiment, the vehicle is in the deployed state, such as Figures 1 to 2 As shown, the first base frame 21 and the second base frame 22 of the base support assembly 2 extend horizontally in the front-to-back direction, and the upper frame 11 and the upper side frame 12 extend along the same length direction and are located above the base support assembly 2, forming a carrying space between the frame 1 and the base support assembly 2 for sitting or placing items. The push rod frame 5 extends obliquely backward and upward from the upper part of the connecting frame 4, and the user can hold the upper part of the push rod frame 5 from the rear of the vehicle to push the vehicle.

[0083] When the user needs to tow the vehicle from the front, see [reference needed]. Figures 3 to 8 As shown, disengage the traction rod 9 from the connecting seat 24, then grasp the handle 92 of the traction rod 9 and pull the traction rod 9 forward and upward, causing the traction rod 9 to slide relative to the adapter seat 23 and drive the rod body 91 to extend along its length, while simultaneously causing the adapter seat 23 to rotate, thus switching the traction rod 9 to the position shown. Figure 7 , Figure 8 As shown, the user can hold the handle 92 at the front of the vehicle to tow it.

[0084] See Figures 9 to 12 As shown, when a passenger needs to enter or exit the vehicle, the user can flip the upper side frame 12 so that the upper side frame 12 rotates downward toward the second base frame 22. The second crossbar 122 of the upper side frame 12 lowers in height, so that the U-shaped opening of the upper side frame 12 turns upward. At this time, an entry and exit passage is formed on the upper side frame 12, which can facilitate the passenger to enter or exit the vehicle.

[0085] See Figures 13 to 16 As shown, when the passenger is sitting in the vehicle, the foot pedal support 81 in the foot pedal assembly 8 can be opened and suspended below the bottom support assembly 2 to facilitate the passenger's foot placement and make sitting more comfortable; the foot pedal support 81 can also be folded up and fixed to the bottom support assembly 2 to provide flat support together with the bottom support assembly 2. At this time, the vehicle can also be used for smaller infants and young children to lie down. The sunshade 15 can be opened or closed as needed to provide more comprehensive protection for infants and young children.

[0086] When it is necessary to fold up the vehicle, see [link to relevant documentation]. Figures 17 to 23As shown, the tow bar 9 is retracted to the bottom of the second base frame 22. Then, the push rod frame 5 is driven to flip and fold forward relative to the connecting frame 4, and the push rod frame 5 and the connecting frame 4 are driven to flip backward and downward as a whole. The connecting frame 4 rotates relative to the first support 31, causing the upper frame 11 and the first base frame 21 to rotate and retract relative to the first support 31 respectively. Subsequently, the second base frame 22 and the first base frame 21 flip relative to each other, and the second support 32 rotates relative to the first support 31 and gradually retracts in the front-to-back direction. The upper side frame 12 rotates and retracts relative to the second support 32 under its own weight and / or external force. Finally, all the rods on the vehicle retract together in the front-to-back direction, presenting as shown. Figures 21 to 23 The state shown is such that the first wheel assembly 10 and the second wheel assembly 20 move closer together in the front-to-back direction, causing the vehicle to stand upright on the ground.

[0087] When the vehicle needs to be opened, the upper part of the push rod frame 5 can be pulled directly to drive the connecting frame 4 to move upward and rotate relative to the first support 31, thereby causing the various rods on the vehicle to move relative to each other and thus unfold the vehicle. The unfolding operation is also very convenient.

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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 vehicle having an unfolded state and a folded state, characterized in that, The vehicle includes: upper frame; The bottom support assembly includes a first base frame and a second base frame, wherein one end of the first base frame and the second base frame are rotatably connected; The side support assembly includes a first bracket and a second bracket. The bottom support assembly is disposed between the first bracket and the second bracket. The other end of the first base frame is rotatably connected to the lower part of the first bracket. The other end of the second base frame is rotatably connected to the lower part of the second bracket. The upper part of the first bracket is rotatably connected to the upper part of the second bracket and the upper frame. When the vehicle is in a folded state, the upper frame and the side support assembly are folded together, and the first base frame and the second base frame are folded together between the first bracket and the second bracket. The vehicle also includes a connecting frame, which is movably connected to the upper frame, the bottom support assembly and the side support assembly, so that the connecting frame can move the vehicle between an unfolded state and a folded state.

2. The vehicle according to claim 1, characterized in that: The connecting frame is movably connected between the first support, the first base frame and the upper frame. When the connecting frame is moved, it drives the upper frame, the first support and the first base frame to rotate relative to each other, so that the vehicle can switch between an unfolded state and a folded state.

3. The vehicle according to claim 2, characterized in that: The connecting frame intersects with the first support and is rotatably connected at the intersection. When the connecting frame rotates relative to the first support, it causes the upper frame and the first base frame to rotate and retract or expand relative to the first support at the same time.

4. The vehicle according to claim 3, characterized in that: One end of the connecting frame is rotatably connected to a first sliding member, which is slidably disposed on the first base frame along the length extension direction of the first base frame; a second sliding member is rotatably connected to the upper frame, which is slidably disposed on the connecting frame along the length extension direction of the connecting frame.

5. The vehicle according to claim 2, characterized in that: The vehicle also includes a push rod frame, which is foldably connected to the connecting frame. A first locking member is provided between the connecting frame, the upper frame, the first bracket, and the first base frame for locking the two together. The first locking member is linked to the push rod frame so as to drive the first locking member to unlock when the push rod frame is retracted relative to the connecting frame.

6. The vehicle according to claim 1, characterized in that: The vehicle also includes an upper side frame, which is connected to the upper enclosure frame or the side support assembly. When the vehicle is in the unfolded state, the upper enclosure frame can cooperate with the upper side frame to form a circumferentially closed frame structure. The upper enclosure frame, the upper side frame, and the bottom support assembly cooperate to form a load-bearing space.

7. The vehicle according to claim 6, characterized in that: One end of the upper side frame is rotatably connected to the upper enclosure frame and / or the side support assembly, such that when the upper side frame is flipped downward toward the second base frame, an access passage is formed on the upper side frame that connects to the carrying space and allows passengers to pass through.

8. The vehicle according to claim 1, characterized in that: The vehicle also includes a foot pedal assembly, which includes a foot pedal support member. The foot pedal support member is vertically movable and connected to the bottom support assembly, such that the foot pedal support member has a first state of being suspended below the bottom support assembly and a second state of being retracted with the bottom support assembly. The foot pedal support is connected to the first base frame and the second base frame respectively through flexible connectors. When the foot pedal support is in the first state, the flexible connector and the foot pedal support define a foot space below the base support assembly, which can accommodate the rider's feet. When the foot pedal support is in the second state, the foot pedal support is fixedly connected to the first base frame and / or the second base frame.

9. The vehicle according to claim 1, characterized in that: The vehicle also includes a tow bar movably connected to the second base frame, such that the tow bar has a retracted state (folded back at the bottom of the side support assembly) and an open state (extending out to one side of the bottom support assembly and rotatable relative to the second base frame). The bottom of the bottom support assembly is provided with a connecting seat for detachable connection with the traction rod. An adapter seat is rotatably connected to the second base frame. The traction rod includes a rod body, a handle at one end of the rod body, and a limiting end at the other end of the rod body. The rod body is slidably mounted on the adapter seat along its own length. When the traction rod is in the retracted state, the traction rod is engaged with the connecting seat. When the traction rod is in the open state, the traction rod is disengaged from the connecting seat, and the limiting end abuts against the adapter seat.

10. The vehicle according to any one of claims 1 to 9, characterized in that: The vehicle also includes a first wheel assembly and a second wheel assembly. The first wheel assembly is located at the lower part of the first support, and the second wheel assembly is located at the lower part of the second support. When the vehicle is in a folded state, the first wheel assembly and the second wheel assembly are retracted to each other, enabling the vehicle to stand upright on the support surface.

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