WO2024050980A1 - 便携式车辆 - Google Patents

便携式车辆 Download PDF

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Publication number
WO2024050980A1
WO2024050980A1 PCT/CN2022/133853 CN2022133853W WO2024050980A1 WO 2024050980 A1 WO2024050980 A1 WO 2024050980A1 CN 2022133853 W CN2022133853 W CN 2022133853W WO 2024050980 A1 WO2024050980 A1 WO 2024050980A1
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WO
WIPO (PCT)
Prior art keywords
support
rod
portable vehicle
base
support section
Prior art date
Application number
PCT/CN2022/133853
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English (en)
French (fr)
Inventor
徐东亮
Original Assignee
河北星火马科途五金制造有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 河北星火马科途五金制造有限公司 filed Critical 河北星火马科途五金制造有限公司
Priority to CN202280005033.8A priority Critical patent/CN117177896A/zh
Publication of WO2024050980A1 publication Critical patent/WO2024050980A1/zh

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/02Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving parts being adjustable, collapsible, attachable, detachable or convertible

Definitions

  • the present application generally relates to portable vehicles including trolleys, hand trailers, campers, campers, and beach buggies, and more specifically to a portable vehicle that can be switched between an unfolded state and a folded state, generally by human power (also by human power). Small portable vehicles powered by electricity or other energy sources.
  • portable vehicles have a certain depth to form a space to accommodate cargo. Therefore, the carrying capacity of portable vehicles is also limited by the size of their frames. This is one of the biggest differences between portable vehicles using the above design and ordinary flatbed trucks. one.
  • the metal material and the height limit of the X-shaped structure can ensure the strength and stability of the body frame, such portable vehicles often fail when faced with larger volumes of cargo. The inability to fully accommodate such cargo results in the cargo falling, which limits the application range of portable vehicles.
  • Chinese utility model patent CN215752484U discloses a folding trailer.
  • the folding trailer does not have an X-shaped structure on the side, but is replaced by a longer support rod in the length direction that can be folded around a folding switch.
  • this support rod with a considerable length is very easy to be deformed and damaged when subjected to downward force, which reduces the body stability of the entire folding trailer and also reduces the stability of the folding trailer. Load capacity.
  • Chinese utility model patent CN208760679U discloses a folding trolley, which also uses a longer support rod in the length direction that can be folded around the rotating member. In order to improve the force-bearing capacity of the support rod in the length direction, it introduces four inclined Pole. However, the introduction of diagonal braces also inevitably increases the weight of the campervan.
  • Chinese utility model patent CN208760679U also discloses that a longer support rod is composed of two support sections, and the two support sections are connected by a rotation limiter.
  • the rotation limiter device is circular in shape as a whole and includes a rotating base and a rotating body. The rotating base and the rotating body can rotate relative to each other. A limiting structure is provided inside the rotating limiting device to limit the rotation angle between the rotating base and the rotating body. .
  • the two support sections that make up the support rod are respectively connected to the rotating seat and the rotating body of the rotation limiter.
  • the support section can rotate inward under the drive of the rotation limiter to present a "V"-shaped folded state, which is convenient for portable vehicles. fold.
  • Such a rotation limiter can only realize one-way limit and cannot realize two-way limit.
  • the support rod can only limit the support rod from being folded further upward from the unfolded state into an inverted "V” shape, but cannot limit the support rod from being folded from the unfolded state into an inverted "V” shape. folded state. In this case, the stability of the portable vehicle frame in the unfolded state cannot be guaranteed.
  • the support rod has a certain length, and the rotation limiter is equivalent to a fulcrum, which corresponds to a longer moment arm. When the support rod is stressed, the torsion the rotation limiter bears increases exponentially, which affects the rotation limiter. The strength and reliability of the bit device itself put forward very high requirements.
  • the portable vehicle of the present invention is proposed.
  • the present invention discloses a portable vehicle that can be switched between an unfolded state and a folded state, including: a chassis assembly for providing bottom support; a frame assembly for forming an accommodation space for the portable vehicle; and a handle assembly. , used to provide driving force to the chassis component and/or frame component; the wheel component is used to support the chassis component and/or frame component, and drive the movement of the chassis component and/or frame component; the frame component includes a first support rod, a second support rod and a longitudinal support rod, the longitudinal support rod is arranged between the chassis assembly and the first support rod and the second support rod; the first support rod, the second support rod and the longitudinal support rod are connected through the upper corner The coupling piece is connected; the chassis assembly and the longitudinal support rod are connected through the lower corner coupling piece; the first support rod includes a first support section and a second support section, and the first support section is connected to the second support section through a rotational connection piece; A support reinforcement is provided on the first support rod, and the length of the support reinforcement is shorter than
  • the rotating connecting piece is a rotating shaft.
  • the rotating connecting member is a shaft
  • the shaft includes shaft holes provided at both ends of the shaft.
  • the first support section and the second support section are respectively connected to the shaft through the shaft holes.
  • the ratio of the length of the shaft to the length of the first support rod ranges from 1/20 to 1/3.
  • the ratio of the length of the shaft to the length of the first support rod ranges from 1/5 to 1/4.
  • the chassis assembly includes a base and a base rod.
  • the base has a base extension part, and the base rod is rotationally connected to the base extension part and the lower corner coupling piece; the base rod is provided with a support connector;
  • the base frame also includes: a bottom support device, It includes a fixed base and a traction piece.
  • the fixed base is connected to the base and can move with the base.
  • One end of the traction piece is connected to the fixed base, and the other end of the traction piece is connected to the support connector.
  • the traction piece In the unfolded state, the traction piece provides the first power to the fixed base. Traction force; in the folded state, the traction component provides a second traction force to the fixed seat, and the second traction force is smaller than the first traction force.
  • the fixed seat and the base are integrally formed.
  • the second traction force is equal to zero.
  • the support reinforcement is a support sleeve, which is sleeved on the first support rod and can slide along the first support rod; in the unfolded state, the support sleeve is sleeved on the first support section and the second support section at the same time. part; in the folded state, the support sleeve is sleeved on the first support section.
  • the support reinforcement is a limit rod, and a limit buckle is provided on the limit rod.
  • One end of the limit rod is rotatably installed on the first support section; the second support section is provided with a first fixing groove; expand In the folded state, the limiting buckle of the limiting rod is engaged with the first fixing groove; in the folded state, the limiting buckle of the limiting rod is disengaged from the first fixing groove.
  • the second support section is also provided with a second fixing groove; in the folded state, the limiting buckle of the limiting rod is snapped into the second fixing groove.
  • the support reinforcement is a bolt
  • the bolt includes a bolt
  • the first support section and the second support section are provided with bumps, and the bumps can cooperate with the bolt to fix the position of the bolt
  • first The support section is provided with at least two fasteners, and the bolt tongue is provided between the at least two fasteners
  • the second support section is provided with at least one fastener; in the unfolded state, the bolt rod passes through the first support section at the same time
  • the bolt and the bolt on the second support section the bolt tongue is fixed to the convex block of the second support section; in the folded state, the bolt rod passes through the bolt on the first support section at the same time, and the bolt tongue is fixed to the first support segment bumps.
  • Figure 1 shows a schematic diagram of a portable vehicle in an unfolded state according to the first embodiment of the present invention
  • Figure 2 shows a schematic diagram of the portable vehicle in a folded state according to the first embodiment of the present invention
  • Figure 3 shows a schematic diagram of the bottom structure of a portable vehicle according to the first embodiment of the present invention
  • Figure 4 shows a schematic structural diagram of an angle coupling of a portable vehicle according to the first embodiment of the present invention
  • Figure 5 shows a structural schematic diagram of the corner coupling of the portable vehicle from another perspective according to the first embodiment of the present invention
  • Figure 6 shows a schematic structural diagram of a portable vehicle from a top view according to the first embodiment of the present invention
  • Figure 7 shows a schematic structural diagram of a portable vehicle frame according to the first embodiment of the present invention.
  • Figure 8 shows a schematic diagram of the portable vehicle in a deployed state according to the second embodiment of the present invention.
  • Figure 9 shows a detailed structural view of the support rod of the portable vehicle according to the second embodiment of the present invention.
  • Figure 10 shows a schematic diagram of the portable vehicle in a folded state according to the second embodiment of the present invention.
  • Figure 11 shows a schematic diagram of the bottom structure of a portable vehicle according to the second embodiment of the present invention.
  • Figure 12 shows a detailed structural diagram of the support rod of the portable vehicle according to the second embodiment of the present invention.
  • Figure 13 shows a schematic diagram of the portable vehicle in the unfolded state according to the third embodiment of the present invention.
  • Figure 14 shows a schematic view of a partially detailed structure of a support rod of a portable vehicle according to the third embodiment of the present invention from different viewing angles;
  • Figure 15 shows a schematic diagram of a partially detailed structure of a support rod of a portable vehicle according to the third embodiment of the present invention from different viewing angles;
  • Figure 16 shows a schematic structural view of the lower corner coupling in the dotted box of Figure 13;
  • Figure 17 shows a schematic diagram of the portable vehicle in the unfolded and frame-detached state according to the third embodiment of the present invention.
  • Figure 18 shows a schematic assembly diagram of the lower corner coupling and the longitudinal support rod of the portable vehicle according to the third embodiment of the present invention.
  • Figure 19 shows a schematic diagram of the portable vehicle in the unfolded and frame-detached state according to the third embodiment of the present invention.
  • Figure 20 shows a schematic diagram of the portable vehicle in a state of unfolding into a flatbed vehicle according to the third embodiment of the present invention
  • Figure 21 shows a schematic cross-sectional view of a portable vehicle front handle according to a fourth embodiment of the present invention.
  • Figure 22 shows a schematic cross-sectional view of the handle telescopic locking mechanism in one state within the dotted line frame of Figure 21;
  • FIG. 23 shows a schematic cross-sectional view of the handle telescopic locking mechanism in another state within the dotted line frame of FIG. 21 .
  • connection includes various connection methods including direct connection and indirect connection, and does not require physical contact between the various parts being connected.
  • Various specific connection methods include snap connection, screw connection, connection without fixed device, welding, riveting, and one-piece molding.
  • component fit it includes various types of fit relationships such as clearance fit, transition fit, interference fit or variable clearance.
  • FIGS. 1 to 2 are schematic diagrams of the first embodiment of the present invention, wherein Fig. 1 is a schematic diagram of the portable vehicle of the present invention in an unfolded state, and Fig. 2 is a schematic diagram of the portable vehicle of the present invention in a folded state.
  • the portable vehicle 10 includes a frame assembly 110, a front handle assembly 120, a chassis assembly 140, a wheel assembly 150, and a tailgate assembly 160.
  • the frame assembly 110 includes an upper frame and a lower frame and a longitudinal support rod 1109 disposed between the upper and lower frames.
  • the upper frame includes a first support rod in the length direction and a second support rod in the width direction. The first support rod and the second support rod are connected through an upper corner coupling 1001 to form a rectangular frame.
  • the first support rod includes two first support sections 1102. One end of the first support section 1102 is connected to the upper corner coupling 1001, and the other end is directly or indirectly connected to the adjacent first support section.
  • the first support rod includes three or more first support segments. The first support segments located at both ends of the first support rod are connected to the upper corner couplings, and the other first support segments are directly connected to each other. or indirectly connected.
  • the two first support sections 1102 are connected through a rotational connection.
  • the rotational connection is a shaft 1107 .
  • Axis holes are provided at both ends of the shaft 1107.
  • the first support sections 1102 provided on both sides of the shaft 1107 are rotationally connected to the shaft through the shaft holes provided on the shaft, so that the two first support sections 1102 can rotate relative to each other.
  • This enables switching between folded and unfolded states.
  • the two first support sections 1102 are basically in a straight line, so that the length of the first support rod is the longest; when the portable vehicle is in the folded state, the two first support sections 1102 are folded in a "V" shape. status, which reduces the space occupied by the entire portable vehicle and improves portability performance.
  • the first support segments can be directly connected through a rotating shaft. This connection method does not introduce independent rotating connection components, which reduces the structural complexity of the portable vehicle.
  • the first support rod is provided with a support reinforcement.
  • the support reinforcement is a support sleeve 1103.
  • the support sleeve 1103 is sleeved on the first support rod and can slide along the first support rod. When the portable vehicle is in the unfolded state, the support sleeve 1103 slides to the connecting part of the two first support sections 1102.
  • the support sleeve 1103 spans the shaft 1107 and the first support sections 1102 provided at both ends of the shaft to provide support.
  • the functions of the shaft rod and the two left and right first support sections keep the first support rod in a substantially linear unfolded state.
  • the support sleeve 1103 has a certain length and spans the shaft and the first support sections provided at both ends of the shaft.
  • the first support rod can be kept in a substantially straight state through the rigid sleeve;
  • the fulcrum of the first support section is located at the rotation axis of the shaft in the folded or free movement state, when the support sleeve 1103 has a certain length and spans the shaft and adjacent support sections, the first support section The fulcrum of the support section will move from the rotation axis position of the shaft to the end position of the support sleeve, which is equivalent to moving the fulcrum of the first support section 1102 toward the angle coupling 1001, reducing the moment on the first support section 1102, thereby reducing the moment on the first support section 1102. Reduce the deformation of the first support section.
  • the length of the support sleeve 1103 is greater than the length of the shaft but less than the length of the at least one first support section 1102.
  • the shaft 1107 of this embodiment has a certain length.
  • the length of the first support section can be reduced while the overall length of the first support rod of the portable vehicle remains unchanged. Since the bending resistance of shorter rod-shaped objects is higher than that of longer rod-shaped objects, such an arrangement can improve the bending resistance of the first support section, thereby improving the bending resistance of the entire first support rod. strength.
  • the lower limit values of the ratio of the length of the shaft to the length of the first support rod include 1/20, 1/10, 1/8, and 1 /5, when the ratio of the length of the shaft to the length of the first support rod is above the above lower limit, the length of the first support section can be effectively reduced and the ability of the first support section to resist bending is improved; in this embodiment
  • the upper limit of the ratio between the length of the shaft and the length of the first support rod includes 1/3, 3/10, 4/15, and 1/4. Due to the bending state The lower shaft is placed horizontally, and the length of the shaft will affect the folding compactness of the portable vehicle.
  • the length of the shaft is 1/20-1/3 of the length of the first support rod.
  • the length of the shaft ranges from 5 cm to 33 cm.
  • the length of the shaft is 1/8 to 3/10 of the length of the first support rod.
  • the length of the shaft is 1/5 to 1/4 of the length of the first support rod.
  • the second support rod in the width direction, it has two second support sections 1105, and the two second support sections 1105 can switch to each other in a folded or unfolded state.
  • the two second support sections 1105 are connected through a connecting shaft.
  • the two second support sections can also be connected through other connecting components such as shafts.
  • a support sleeve 1106 is also provided on the second support rod. When the portable vehicle is in the unfolded state, the support sleeve moves to the connection part of the two second support sections 1105 and spans the two second support sections, so that the second The support rod is generally straight. When the portable vehicle is in a folded state, the support sleeve is stored on any second support section to ensure that the portable vehicle can be folded smoothly.
  • the upper corner coupling 1001 is used to connect the first support rod and the second support rod of the upper frame, and to connect the longitudinal support rod 1108.
  • the upper corner coupling 1001 has three extension parts, and these three extension parts respectively form receiving grooves for accommodating the first support rod, the second support rod and the longitudinal support rod, and each two extension parts are perpendicular to each other.
  • the upper corner coupling piece is provided with a rotation shaft hole, and the corresponding connecting sections of the first support rod and the second support rod are rotationally connected to the upper corner coupling piece 1001 through the rotation shaft hole.
  • the upper corner coupling 1001 is used to accommodate the first and second support rods.
  • the lower part of the accommodation groove is open and the upper part is closed. It is used to limit the rotation direction of the first and second support rods.
  • the upper corner coupling has a limiting function. downward, the folding directions of the first support rod and the second support rod are limited to only move downward for folding.
  • the extension portion of the upper corner coupling piece in the vertical direction is provided with a fixing groove, and the longitudinal support rod 1108 is disposed in the fixing groove to achieve connection and fixation with the upper corner coupling piece.
  • the method for fixing the longitudinal support rod can be screws, bolts, buckles, etc., or the upper corner coupling piece and the longitudinal support rod can even be integrally formed to ensure the stability of the connection between the upper corner coupling piece and the longitudinal support rod.
  • the upper corner coupling is provided with only one or two extension parts.
  • the upper corner coupling is only provided with the first extension part for accommodating the length-direction support rod, or is only provided with the first extension part for accommodating the width-direction extension.
  • the second extension part of the rod, or the first and second extension parts are provided at the same time. In the case where only one extension part or two extension parts are provided, the overall weight of the upper corner coupling can be reduced as much as possible.
  • the lower frame includes a third support rod 1113 in the length direction and a fourth support rod 1114 in the width direction.
  • the third support rod and the fourth support rod are respectively connected to the lower corner couplings 1002 and 1003 to form the lower frame.
  • the lower corner couplings 1002 and 1003 are provided with receiving grooves in the length direction and the width direction. The upper part of the receiving groove is open and used to limit the third support rod and the fourth support rod.
  • the third support rod 1113 and the fourth support rod 1114 detachable connection between the end and the receiving groove of the lower corner coupling. When the portable vehicle is in the folded state, the third support rods 1113, 1114 can be detached from the receiving groove of the lower corner coupling, so that the portable vehicle can Folds smoothly to reduce the space occupied in portable vehicles.
  • the third and fourth support rods can increase the strength of the lower frame, and when it is necessary to install a base plate at the bottom of the portable vehicle, the third support rod can provide a base plate support structure to improve the stability of the base plate installation.
  • the material of the third and fourth support rods There is no special restriction on the material of the third and fourth support rods. Metal materials or plastic materials can be used. When the third and fourth support rods are made of plastic materials, the weight of the third and fourth support rods can be reduced. , making portable vehicles lightweight.
  • the third support rod 1113 and the fourth support rod 1114 are folding rods.
  • the third and fourth support rods are in a "V" shaped folding state. With such a design, there is no need to remove the third and fourth support rods when the portable vehicle is folded, making the folding of the portable vehicle more convenient.
  • the portable vehicle further includes a chassis assembly 140 that includes a base 1401 having a base extension 1404 extending along the diagonal line of the chassis.
  • the base 1401 is provided with a base rod installation groove, and the base rod installation groove is provided with a mounting hole.
  • One end of the base rod 1402 is rotatably installed to the base rod installation groove through the installation hole.
  • the base rod installation groove opens downward to limit the upward rotation of the base rod 1402.
  • the base rod 1402 can provide an upward reaction force through the rotating shaft and the base extension to prevent the base 1401 from moving downward and causing the bottom of the portable vehicle to dent.
  • the base extension 1401 has a certain length.
  • the diagonal length of the two diagonally arranged base extensions 1404 is y
  • the diagonal length of the chassis assembly is d
  • the ratio range of y and d The values of the lower limit include 10%, 15%, and 20%.
  • the upper limit of the ratio range of the diagonal length y of the base extension 1404 compared to the diagonal length d of the chassis assembly includes 25%, 30%, and 35%.
  • the base extension itself is rigid and plays a load-bearing role. Therefore, the base extension cannot be folded when the portable vehicle is in a folded state.
  • the ratio of the diagonal length y of the base extension 1404 to the diagonal length d of the chassis assembly ranges from 10% to 35%.
  • the ratio ranges from 15% to 30%.
  • the ratio ranges from 15% to 30%.
  • the ratio range is 20% to 30%.
  • the other end of the base rod 1402 is mounted to the lower corner couplings 1002, 1003 and is rotatable about the lower corner couplings.
  • the base 1401 lifts upward, the base rod 1402 retracts inward, the base rod pulls the lower corner couplings closer to each other, and drives the upper frame and lower frame to fold.
  • the upper corner coupling The pieces are also close to each other.
  • the portable vehicle will eventually assume a folded state with the upper corner coupler surrounding and close to the base, the horizontal support bars folded or removed, and the longitudinal support bars adjacent to each other.
  • the portable vehicle further includes a tailgate assembly 160 , which is disposed on an end of the portable vehicle frame away from the front handle.
  • the tailgate includes two tailgate brackets 1601 and staggered rods 1602 disposed between the tailgate brackets.
  • the staggered rods 1602 serve as a type of tailgate stopper and can prevent cargo placed in the portable vehicle frame from passing from the portable vehicle. leaks from the rear.
  • One end of the tailgate bracket 1601 is connected to the lower corner coupling 1002. As an optional embodiment, this connection can be a rotational connection. Through this rotational connection, the tailgate can be placed between the stowed and put down states. switch between.
  • the tailgate plays a role in blocking the leakage of objects within the frame of the portable vehicle; when the tailgate is put down, it can increase the horizontal load area of the portable camper. At this time, if the portable vehicle can The longitudinal support rod connects to the upper frame and is removed together to become a flatbed truck. The lowered baffle can further increase the loading area of the flatbed truck.
  • the tailgate can be provided in an integrally formed manner, for example, in a "U" shape.
  • the blocking member of the tailgate may be a steel wire rope, an elastic rope, a net bag, and other structures arranged between the tailgate frames for blocking the leakage of objects.
  • Figures 4 and 5 are detailed views of the upper corner coupling of this embodiment.
  • the extension of the upper corner coupling 1001 in the direction of the first support rod is the first extension 1002, which has a certain length and is located at the first
  • a frame limiting portion 1003 is provided at the corner position of the end of the extension portion.
  • the frame limiter 1003 is an elastic limiter, including a spring and a ball fixed at one end of the spring. When the ball is under pressure, it will move downward and compress the spring to cause elastic deformation. At this time, the first The support rod can smoothly rotate within the first extension part. When the pressure on the ball is removed, the spring pops out and the ball moves outward to protrude the end surface of the extension.
  • the rotation of the first support rod in the first extension will be limited by the frame limiter.
  • This increases the difficulty of changing the movement trend of the first support rod.
  • the elastic limiting part is located on the lower side of the first support rod, restricting the downward movement of the first support rod and keeping the first support rod in the unfolded state;
  • the elastic limiting portion is located on the outside of the first support rod to limit the outward movement of the first support rod and keep the first support rod in the folded state. Adopting such a design can improve the stability of the portable vehicle in the folded and unfolded states.
  • the limiting structure of the elastic limiting part adopts a sphere, and the movement of the first support rod on the sphere can be used to generate downward pressure, thereby conveniently pressing the sphere.
  • the sphere here can also be other structures with curved surfaces, including hemispheres and ellipsoids.
  • the limiting part is a non-elastic limiting part (not shown in the figure).
  • the non-elastic limiting part is a latch limiting device, including a latch arranged at the corner of the corner coupling. hole and a latch capable of moving in the latch hole.
  • the latch is pulled out from the latch hole, and the support rod is free of the latch limitation and can rotate freely.
  • the latch is locked, and the latch provided at the corner of the corner coupler limits the position of the support rod, so that the portable vehicle can remain in the unfolded or folded state, and the portable vehicle can be improved ease of use.
  • the non-elastic limiting part also includes screws, buckles, etc.
  • the limiting portion can also be provided at a corner position of any corner coupling extension portion or at a corner position of the base extension portion.
  • the frame limiter When the frame limiter is provided at the corner of the extension part of the lower corner coupling, the frame limiter can play a limiting role on the third and/or fourth support rod; when the base extension is provided with a bottom at the corner.
  • the limiting part When the limiting part is installed, it can play a limiting role on the base rod.
  • the limiting portion plays a limiting role on the support rod and/or the base rod to prevent the portable vehicle from unfolding independently in the folded state, and also prevents the portable vehicle from being affected by a specific direction in the unfolded state. Fold with force.
  • the front handle assembly 120 is provided at the front of the portable vehicle.
  • the main function of the handle assembly is to provide pulling force. This operation method is more suitable for pulling a portable vehicle with a large load.
  • the front handle assembly 120 includes a handle 1201, and the handle 1202 is installed on the handle frame 1202.
  • the handle frame 1202 is U-shaped. Such a design can leave enough holding space in the handle and the handle frame to improve the grip of the handle. Maintain comfort.
  • the grip 1201 can be covered with leather or imitation leather materials to improve the comfort of holding.
  • the space surrounded by the handle frame 1202 and the grip 1201 can also be provided with a buffer structure through sponge, leather or imitation leather materials to further improve the grip. comfort.
  • the handle frame 1202 is connected to the handle bar.
  • the handle bar includes three telescopic rods 1203, 1204, and 1205 that are sleeved on each other.
  • the telescopic rods 1203 and 1204 can slide relative to the telescopic rods that are sleeved on the outside to achieve telescopic and unfolding functions. Effect.
  • Limiting devices are provided at the bottoms of the telescopic rods 1203 and 1204 to prevent the telescopic rods from being separated from the telescopic rods they are sleeved with during the extension process.
  • the surface of the telescopic rod in this embodiment is provided with multiple reinforcing ribs in the vertical direction. These reinforcing ribs can increase the strength of the telescopic rod and avoid its deformation.
  • the handle link 1207 is installed to the handle seat 1206.
  • the handle seat 1206 is provided with a handle link mounting groove.
  • One end of the handle link 1207 is rotatably connected to the handle link mounting slot, and the other end of the handle link 1207 is connected to the lower corner coupling. pieces.
  • the handlebar link can also be connected to the lower frame or chassis.
  • the handle link mounting groove has a certain movement space, so that the handle link 1207 can move within a certain angle range in the handle link mounting groove after being connected to the handle link mounting groove.
  • the other end of the handle link 1207 is mounted to the lower corner coupling 1003 via the mounting slide 1208 .
  • the mounting slide 1208 is rotatable along the length of the portable vehicle within the mounting slot of the lower corner coupling.
  • the installation slider 1208 is rotatably connected to one end of the handle link 1207.
  • the installation slider has a certain height and protrudes from the lower corner coupling. It raises the installation position of the handle link 1207 and avoids the coupling of the handle link 1207 with the lower corner. The interference between the components allows the laterally disposed handle link 1207 to rotate along the length direction of the portable vehicle as the slider rotates.
  • the front handle assembly 120 can rotate along the length direction of the portable vehicle, and can also rotate at a certain angle in the width direction of the portable vehicle.
  • the operator can use the handle to well control the turning, escape and other directions of the portable vehicle.
  • Sexual operation improves the operational convenience of portable vehicles.
  • the wheel assembly 150 is used to carry the portable vehicle and drive the portable vehicle to move.
  • the wheel assembly includes a front wheel 1501 and a rear wheel 1503.
  • the front wheel 1501 is provided with a brake pad 1502, and the rear wheel 1503 is provided with a brake pad 1504.
  • the front wheel 1501 is a universal wheel, which can improve the maneuverability of the portable vehicle when the handle 120 is used to pull the portable vehicle.
  • the rear wheel 1503 is also a universal wheel.
  • the front wheel 1501 and the rear wheel 1503 are provided with direction locking devices. When using the front handle to drive the portable vehicle, loosen the direction locking device of the front wheel 1501 and lock it.
  • the portable vehicle has a rear handle (not shown in the figure), or the vehicle needs to be pushed from the rear end of the portable vehicle.
  • the direction locking device of the rear wheel 1503 and lock the direction of the front wheel 1501 Locking mechanism in this case only the rear wheel has universal adjustment.
  • Directional locking devices are used for both front and rear wheels. No matter which direction the operator drives the portable vehicle, the wheel close to the driving direction/position can be set as a universal wheel, and the direction of the wheel far away from the driving direction/position can be locked. This enables the direction of the portable vehicle to be well controlled.
  • the wheel assembly is installed on the portable vehicle body through a quick-release structure. When it is necessary to replace/switch the universal wheel, the quick-release structure can be used to quickly achieve the replacement effect.
  • the quick-release structure here is not particularly limited, including various quick-release structures including buckles, threads, and elastic sleeves.
  • the first support rod and the second support rod of the upper frame are both in the unfolded state.
  • the two support rods of the first support rod are in the unfolded state.
  • the two first support sections 1102 are arranged oppositely and are substantially on the same straight line as the shaft 1107 connecting the support sections.
  • the two first support sections 1105 of the second support rod are also arranged oppositely and are substantially in a straight line.
  • the support sleeve 1103 is installed at the position of the shaft 1107 and spans the two adjacent support sections 1102.
  • the support sleeve 1103 plays a role in limiting the shaft and the support sections on both sides at the same time, so that the first The support rod is basically straight in the unfolded state and can remain straight.
  • the support sleeve 1106 provided on the second support rod is installed to the position where the second support segments 1105 are connected to each other in the deployed state, so that the second support rod can basically maintain a straight line in the deployed state.
  • the handle assembly 120 In the unfolded state, the handle assembly 120 can be extended to a specific length according to the user's height or specific needs, thereby facilitating the user's operation.
  • the shaft of the first support rod moves downward, causing the two first support sections and the second support section to rotate around the upper corner coupling, and
  • the first support rod and the second support rod are folded in a "V" shape.
  • the base 1401 moves upward, and the base rod 1402 moves around the rotation axis of the base extension 1404 and the lower corner couplings 1002 and 1003.
  • the upper corner coupling and the lower corner coupling are respectively close to each other to achieve inward folding.
  • the support sleeve 1103 is slidably stored on the first support section, and any end of the support sleeve does not contact the shaft or the adjacent support section.
  • the base 1401 and the upper corner coupling 1001 are basically in a close or close state, and the horizontal height of the base 1401 in the folded state is basically flush with the upper part of the corner coupling 1001 .
  • the handle assembly 120 can be in a folded state or in an unfolded state, and the operator can still operate the camper in the folded state through the handle assembly 120 .
  • the strength of the body frame can be ensured without using an X-shaped structure on the side, and the overall length of the support rod used in the portable vehicle can be reduced, thereby reducing the weight of the portable vehicle. , improving the portability performance of portable vehicles.
  • the third support rod When the third support rod is foldable, there may be a problem that the two support rods located on the same vertical plane interfere with each other in the folded state: Since the first support rod has a positive "V" shape when folded, the third support rod The support rod forms an inverted “V” shape when folded, and the two may interfere with each other in the folded state.
  • the distance dl between the two third support rods 1113 is shorter than the distance du between the two first support rods 1102, so that The projections of the first support rod and the third support rod on the plane do not overlap, showing a "staggered” state.
  • the first support rod is bent inward to form a positive "V" shape
  • the third support rod is bent upward to form an inverted "V” shape
  • the first and third support rods are bent upward to form an inverted "V” shape. Staggering in the width direction of the portable vehicle avoids mutual interference and improves space utilization.
  • the distance dl between the two third support rods 1113 is longer than the distance d2 between the two first support rods 1102. With such an arrangement, the bottom accommodation space of the portable vehicle can be expanded.
  • the first support rod and the third support rod are composed of support sections with different lengths.
  • the first support rod at the left position in the figure is The longer support section 1701 is the shorter support section 1702 on the right in the figure, and the two support sections are connected by a shaft 1703; the support section of the third support rod on the left is The shorter support section 1704 is the longer support section 1705 on the right side of the figure, and the two support sections are connected by a rotary connector 1706.
  • the support rods of the upper frame and the lower frame can present a "staggered" posture in the folded state, avoiding mutual interference and making the folded state of the portable vehicle more compact.
  • the ratio range of the difference between the length of the longer support section and the length of the shorter support section and the length of the longer support section is defined as the "length deviation ratio".
  • the lower limits of the length deviation ratio include 5%, 10%, and 15%.
  • the upper limit values of the length deviation ratio of the support sections in this embodiment include 20%, 25%, and 30%.
  • the long and short design The support section has a larger rotation angle in the folded state, and the larger rotation angle corresponds to a shorter lateral distance, further improving the folding compactness of the portable vehicle.
  • the length of the shaft is 5cm
  • the lengths of the support sections 1701 and 1702 are 47cm and 38cm respectively
  • the "length deviation ratio" is (47-38)/47* 100% ⁇ 19.1%.
  • the portable vehicle 20 includes a frame assembly, a front handle assembly, a rear handle assembly, a chassis assembly, and a wheel assembly.
  • the frame assembly includes an upper frame and a longitudinal support rod 2108.
  • the longitudinal support rod 2108 is provided between the bottom frame assembly and the upper frame for connecting the upper frame and bottom frame assembly.
  • the upper frame includes a first support bar arranged in the length direction and a second support bar disposed in the width direction.
  • the first support bar includes at least two first support sections 2102 and 2104, and the second support bar includes two second support sections.
  • the first support rod and the second support rod are connected through the upper corner coupling 2001 to form a rectangular frame.
  • the bottom of the portable vehicle only includes a fourth support bar disposed laterally.
  • the bottom of the portable vehicle does not include support bars in the length direction and width direction.
  • the length of the handle link of the portable vehicle in the fully open state is equal to the distance between the two lower corner couplings to achieve To replace the role of the width direction support rod.
  • the rear handle assembly 230 is disposed at the rear of the portable vehicle.
  • the main function of the rear handle assembly is to provide thrust, and is suitable for pushing the camper to move.
  • the rear handle assembly 230 includes a lower handle 2301 and an upper handle 2302 .
  • the upper and lower handles are connected by a rotary connector 2303, and the upper and lower handles can rotate around the rotary connector 2303, thereby providing a comfortable operating angle for the operator.
  • the upper handle 2302 includes two handle means, and the two handle means are rotationally connected through a rotating connector 2304.
  • the rotating connector 2304 enables the two handle means of the upper handle to be folded in a "V" shape, thereby reducing the folding volume of the portable vehicle.
  • the two first support sections 2102 and 2104 of the first support rod are connected by a shaft 2107.
  • the first support sections 2102 and 2104 are folded outward until the two support sections are substantially in a straight line, thereby maximizing the effective frame area of the entire portable vehicle in the unfolded state.
  • the first support rod also includes a support reinforcement.
  • the support reinforcement is a limiting rod 2103.
  • the limiting rod 2103 is rotatably connected to any one of the two first support sections. When connected with the limiting rod, A limited slot 2111 is provided in another supporting section adjacent to the rod 2103.
  • the limiting rod 2103 is rotatably connected to the first support section 2102, and the limiting rod 2013 can rotate in a plane perpendicular to/or substantially perpendicular to the bottom surface of the portable vehicle.
  • the limiting rod may also rotate in a plane parallel/or substantially parallel to the bottom surface of the portable vehicle.
  • the other end of the limit rod is provided with a limit buckle 2106.
  • the limit rod 2103 When the portable vehicle is in the unfolded state, the limit rod 2103 is locked in the first limit slot 2111 of the support section 2102 through the limit buckle 2106. At this time, the limiting rod 2103 spans the two first support sections 2102 and 2104 and provides support force to the two support sections at the same time, thereby ensuring that the two first support sections can maintain a straight state in the deployed state. At the same time, since the limiting rod 2103 itself has a certain strength, such an arrangement can improve the load-bearing capacity of the first support rod in the deployed state.
  • the chassis assembly of the portable vehicle includes a base 2401.
  • the base 2401 has a base extension that extends to four diagonal corners of the portable vehicle frame.
  • One end of the base rod 2402 is rotatably connected to the base.
  • the other end of the rod 2402 is rotatably connected to the lower corner coupling 2002 and/or the longitudinal support rod.
  • the chassis assembly also includes a bottom support device.
  • the bottom support device includes a fixed base 2410 and a traction member.
  • the traction member includes a first pull rod 2411 and a second pull rod 2412.
  • the fixed base 2410 is connected to the base 2401 and can move following the movement of the base.
  • the connection between the fixed base 2410 and the base can be a fixed connection or an elastic connection, as long as this connection can enable the fixed base to exert force on the base and move with the base.
  • the fixed seat and the base are integrally formed.
  • the support connector 2416 is installed to the base rod 2402 and can move with the base rod 2402. There is no mutual displacement between the support connector 2416 and the base rod 2402.
  • the support connection member 2416 and the base rod 2402 can be displaced within a certain range. This displacement can provide more space for the folding of the traction member and increase the folding smoothness of the entire portable vehicle.
  • the traction member can still provide force to the base rod through the support connector 2416.
  • the first pull rod 2411 and the second pull rod 2412 are connected through a rotary connector 2414.
  • the rotary connector has a first rotary connection part and a second rotary connection part, and a certain distance is provided between the two rotary connection parts.
  • the first pull rod and the second pull rod are respectively connected through the rotation connection portion provided on the rotation connection member 2414, so that both the first pull rod and the second pull rod can rotate around the rotation connection member 2414 to achieve relative rotation.
  • the relative position between the first rotary connection part and the fixed base 2410 remains unchanged, and thus the relative position with the base remains unchanged; the relative position of the second rotary connection part with the support connector 2416 remains unchanged, and then with the base
  • the relative position of rod 2402 remains unchanged.
  • the linear distance between the fixed seat 2410 and the supporting connector 2416 undergoes a process of long and short changes, and the first pull rod 2411 and the second pull rod 2412 are both rigid. structure, difficult to fold on its own.
  • the rotating connector 2414 By arranging the rotating connector 2414, the distance between the two end points of the rigid first pull rod 2411 and the second pull rod 2412 and the fixed base and the base rod can be changed as the portable vehicle is folded and unfolded, making this embodiment It is possible to fold the traction member in the center, thereby realizing the folding and unfolding of the bottom support device.
  • the support connector 2416 is integrally formed with the base rod.
  • the base 2401 When the portable vehicle is in the unfolded state and there are heavy objects in the vehicle, the base 2401 has a tendency to move downward under the gravity of the heavy objects, causing a "dent" inside the portable vehicle. The larger the “dent” is, the more portable it is. The vehicle's load capacity is weaker. In other words, the ability of the chassis assembly to bear heavy loads without denting corresponds to the carrying capacity of the portable vehicle.
  • the first pull rod 2411 and the second pull rod 2412 can provide pulling force to the fixed base 2410, and the vertical upward component of this pulling force is transmitted to the base 2401, preventing the base from moving downward.
  • the downward movement of 2401 avoids denting of the chassis assembly, improves the structural stability of the chassis assembly, and thereby increases the load-bearing capacity of the portable vehicle.
  • Figure 9 shows another embodiment of the limiting rod.
  • the first support rod includes two support sections 3102 and 3104, in addition to the limiting buckle 3106 and the first limiting slot 3111.
  • the first support section 3104 is also provided with a second limiting slot 3112.
  • the limiting buckle 3106 of the limiting rod 3103 is snapped into the first limiting slot 3111, so that the portable vehicle Keep it expanded.
  • the limiting buckle 3106 of the limiting rod 3103 is locked into the second limiting groove 3112, so that the portable vehicle remains in the folded state.
  • the portable vehicle can maintain both the unfolded state and the folded state, which solves the problem that the existing portable vehicle needs to use a buckle or rope in the folded state.
  • the issue of fixing the cloth cover prevents the loss of the buckle or cloth cover and improves the convenience of use of the portable vehicle.
  • the support sleeve 3105 can also be used as the reinforcement device, further increasing the strength of the first support rod in the deployed state.
  • FIG 11 shows another embodiment of the bottom support device of the present invention.
  • the base assembly 440 includes a base 4401 and a base rod 4402 that is rotationally connected to the base.
  • the chassis assembly 440 also includes a bottom support device.
  • the bottom support device includes a fixed base 4410 and a traction member 4411.
  • the fixed base 4410 is installed to the base 4401 and can move with the base.
  • the fixed base 4410 can also provide interaction force to the base 4401.
  • the fixed seat and the base are integrally formed.
  • the support connection part 4412 is installed to the base rod 4402 and can move with the base rod 4402, and the support connection part 4412 can provide an interaction force to the base rod 4402.
  • the support connecting piece and the base rod are integrally formed.
  • the traction member 4411 is disposed between the fixed base 4410 and the support connector 4412.
  • the traction member 4411 is an elastic pull cord.
  • the elastic pull cord produces elastic deformation when it is subjected to tension. After the tension is removed, the elastic tension The rope can return to its original length. The greater the elastic deformation of the elastic cord, the greater the elastic pulling force it generates.
  • One end of the traction member 4411 is connected to the fixed base 4410, and the other end is connected to the support connection member 4412.
  • the traction member 4411 provides pulling force to the fixed base 4410 and the support connection member 4412 respectively.
  • the pulling force provided by the traction member 4411 to the fixed base 4410 has an upward component. This component offsets or partially offsets the gravity borne by the base 4401.
  • the base 4401 to prevent the base 4401 from moving downward and causing depression.
  • the distance between the support connector 4412 and the fixed base 4410 is the largest, and the elastic deformation of the traction member 4411 is the largest, which means that the pulling force provided by the traction member 4411 to the fixed base is the largest.
  • the load-bearing capacity of the chassis assembly is further improved.
  • the elastic drawstring has a certain deformation ability, it can play a shock-absorbing effect. In the case of transporting fragile items, precision instruments and other goods, this shock-absorbing effect can effectively protect portable vehicles placed in of goods.
  • the traction member can also be a steel wire rope or other rigid pull rope with no elasticity or weak elasticity.
  • the length of the rigid pull rope is not greater than the distance between the support connector and the fixed seat in the unfolded state. , at this time, the traction member has a certain structural strength and is difficult to be broken, so that it can effectively provide traction to the base.
  • the traction component since the traction component does not produce or is difficult to produce elastic deformation, the traction component will generate an interaction force between the fixed seat and the base rod only when there is cargo placed in the portable vehicle.
  • the traction member is an elastic drawstring
  • the elastic drawstring may continue to provide traction to the base, causing the portable vehicle to tend to fold inward. It cannot remain folded, which affects some user experiences.
  • the length of the elastic pull cord that does not produce elastic deformation is defined as the length of the elastic pull cord
  • the distance from the fixed base to the support connector is defined as the expansion distance ( Specifically refers to the distance between the connection part of the fixed base and the elastic pull cord to the connection part of the support connector and the elastic pull cord).
  • the length of the elastic drawstring is less than or equal to the unfolding distance.
  • the lower limit of the ratio between the length of the elastic drawstring and the expansion distance is set to 70%, preferably 80%, and more preferably 90%.
  • FIG 12 is a schematic diagram of another support reinforcement embodiment of the present invention.
  • the support reinforcement is used to keep the two adjacent support sections 4102 and 4104 in a straight state and to share part of the gravity borne by the support rod.
  • the support reinforcement is a bolt 4106, and the support sections 4102 and 4104 are provided with bolts 4105, 4108, and 4109.
  • the bolts 4105 and 4108 are provided on the support section 4102, and the bolts 4109 are provided on the support section 4104.
  • the support section 4102 is also provided with a first protrusion 4111 and a second protrusion 4112.
  • a bolt tongue 4110 is fixedly connected to the bolt rod 4106.
  • the bolt rod 4106 can move in the space formed between the bolts 4105, 4108, 4109 and the support section, thereby allowing the support reinforcement to switch between the locked state and the open state.
  • the bolt rods 4106 pass through the bolt buckles 4108 and 4109 respectively to span the adjacent support sections 4102 and 4104, and the bolt tongue 4110 is buckled into the first protrusion 4111.
  • the force exerted by the support reinforcement on the support section in this embodiment is multiplied by the distance between the force and the toggle to further reduce the value of the moment, which improves the toggle 4108,
  • the stability of 4109 further improves the load-bearing capacity of the upper frame support rod.
  • the first support rod adopts a hollow support section, and the bolt rod is arranged inside the support section, thereby improving the simplicity of the structure.
  • the portable vehicle 50 includes a frame assembly, a handle assembly, a chassis assembly, and a wheel assembly.
  • the frame assembly includes an upper frame and a longitudinal support rod, and the longitudinal support rod is connected to the upper frame.
  • the upper frame includes a first support rod in the length direction and a second support rod in the width direction.
  • the first support rod includes at least two first support segments, and the second support rod includes at least two second support segments.
  • the first support rod and the second support rod are connected through upper corner couplings to form a rectangular frame.
  • the second support rod can telescope along the direction in which the second support rod extends, thereby changing the overall length of the second support rod.
  • the second support rod has two width support sections. Each width support section includes an outer rod 5105 and an inner rod 5106.
  • the outer rod has a hollow structure, and the inner rod is disposed in the hollow structure of the outer rod and can Move along the outer pole.
  • Figure 14 is a detailed view of a certain support section of the width support section in this embodiment.
  • a plurality of elastic buckles 5108 are provided on the inner rod, and a limited clamping hole 5107 is provided on the outer rod.
  • the elastic buckle provided on the inner rod corresponds to the limit card hole on the outer rod
  • the elastic buckle on the inner rod and the limit card on the outer rod The holes fit together to limit the position of the inner rod.
  • press the elastic buckle on the inner rod since there is no longer a limiting relationship between the inner rod and the outer rod, the inner rod can move along the direction of the outer rod.
  • the hollow structure is free to move, thereby switching the second support section between an extended state and a contracted state.
  • the rod slides in the hollow structure, which improves the convenience of adjusting the telescopic length of the second support section.
  • the locking knob 5009 provided on the corner coupling 5001 is used to secure the longitudinal support rod in the corner coupling.
  • FIG 15 shows another embodiment of the telescopic second support section of the present invention.
  • the second support section includes an outer rod 6105 and an inner rod 6106.
  • the outer rod has a hollow structure, and the inner rod It is arranged in the hollow structure of the outer rod and can move along the outer rod.
  • the inner rod is provided with a plurality of slots 6108, and the outer rod is provided with buckles 6109.
  • the buckles provided on the outer rod can switch between the locking state and the tripping state.
  • the buckle is in the locked state by pressing or rotating the buckle on the outer rod. At this time, the buckle faces the direction of the inner rod.
  • the protruding buckle cooperates with the slot on the inner rod and limits the position, so that the relative positions of the inner rod and the outer rod remain fixed.
  • press or rotate the buckle provided on the outer rod to make it in the tripped state.
  • the inner rod can move freely along the hollow structure of the outer rod, thereby switching the second support section between the extended state and the contracted state.
  • the reliability of the telescopic structure of the second support section As other telescopic limiting devices, screws can also be tightened to provide friction to lock or fix the telescopic support rod.
  • the locking knob 6009 provided on the corner coupling 6001 is used to fasten the longitudinal support rod and the corner coupling.
  • the second support section includes an outer rod and an inner rod.
  • the outer rod has a hollow structure.
  • the inner rod is disposed in the hollow structure of the outer rod and can move along the outer rod.
  • the outer surface of the inner rod is in contact with the inner surface of the outer rod and there is friction. The friction force limits the relative position between the inner rod and the outer rod.
  • Friction is used to limit the relative position of the outer rod and the inner rod, further reducing the complexity of the telescopic structure and improving the reliability of the system.
  • the lower corner coupling 6002 is provided with a receiving groove for accommodating the longitudinal support rod, and the longitudinal support rod 6104 is connected to the lower corner coupling through the receiving groove and then connected to the lower frame and chassis.
  • the receiving groove of the longitudinal support rod is provided with an axis hole (not shown in the figure).
  • the longitudinal support rod is connected to the lower angular coupling 6002 through the rotation axis, so that it can rotate around the rotation axis, relative to the lower angular coupling 6002 and the lower frame. Form a certain rotation angle.
  • the receiving groove of the lower corner coupling 6002 for accommodating the longitudinal support rod is opened outward, which can limit the rotation direction of the longitudinal support rod to only outward and not inward.
  • the longitudinal support strut accommodation groove of the lower corner coupling 6002 is provided with a limiting structure 6005.
  • the limiting structure 6005 is arranged outside the accommodation groove and can limit the rotation angle of the longitudinal support rod to between 0 and 30°.
  • the telescopic structure of the second support rod may not provide a telescopic state locking structure such as buckles or holes, and the limit structure of the corner coupling may be directly used to determine the degree of exposure. limit.
  • the limiting structure of the longitudinal support rod receiving groove of the angle coupling is set in the horizontal direction (not shown in the figure), and is used to "hold up” the longitudinal support rod when it unfolds outward until it is horizontal.
  • the angle of rotation of the longitudinal support rod can reach 90°, allowing the side frame of the portable vehicle to be fully unfolded to form a larger loading platform for use as a flatbed truck.
  • the second support rod is detachably connected to the upper corner coupling piece. When the portable vehicle needs to be unfolded, the connection between the second support rod and the upper corner coupling piece is disconnected so that the longitudinal support rod is between 0° and Rotate within 90° range.
  • the longitudinal support rod includes at least two sections of a nested structure that can be telescoped up and down to change the height of the portable vehicle, thereby increasing or reducing the volume of the accommodation space enclosed by the portable vehicle frame.
  • the frame of the portable vehicle has both the "open" and "long-height" functions.
  • the size of the objects that the portable vehicle can accommodate is increased, and the usability of the portable vehicle is improved.
  • FIG 17 shows yet another embodiment of the present invention.
  • the portable vehicle 70 includes a frame assembly 710, a handle assembly 720, a chassis assembly 740, and a wheel assembly 750.
  • the frame assembly 710 includes an upper frame and a longitudinal support rod 7108 connected to the upper frame.
  • the upper frame includes a first support bar in the length direction and a second support bar in the width direction.
  • a lower corner coupling 7002 is provided between the chassis assembly 740 and the frame assembly 710, and the frame assembly 710 is connected to the chassis assembly 740 through the lower corner coupling 7002.
  • Figure 18 shows the assembly diagram of the lower corner coupling and the longitudinal support rod.
  • the lower corner coupling 7002 is provided with a plurality of receiving slots for receiving different components.
  • the lower corner coupling 7002 is provided with a longitudinal receiving groove and a horizontal receiving groove, the longitudinal receiving groove is used to receive the longitudinal support rod, and the horizontal receiving groove is used to receive the support rods in various horizontal directions including the base rod.
  • the longitudinal receiving groove for accommodating the longitudinal support rod the spatial size formed by it is larger than the size of the lower end of the longitudinal support rod, so that the longitudinal support rod can be accommodated.
  • the wall of the longitudinal accommodation groove is provided with an axis hole, and the lower end of the longitudinal support rod is also provided with an axis hole 7004 correspondingly.
  • the lock shaft 7110 of the longitudinal support rod 7108 passes through the axis holes on both sides of the accommodation groove and the longitudinal support at the same time.
  • the shaft hole 7005 is provided on the lower end of the rod to connect the longitudinal support rod to the lower corner coupling 7002 to connect the frame assembly and the chassis assembly to form a general accommodation space for a portable vehicle.
  • the locking shaft includes a locking portion 7109, which can switch the locking shaft between a locked state and a loosened state.
  • a limiting bump 7006 is provided at the end of the locking portion, and a limiting bump 7007 is provided at the corresponding position of the lower corner coupling 7002 .
  • the locking shaft 7110 When the locking part is in the locked state, the locking shaft 7110 is limited in the y direction between the limiting bump and the limiting groove and cannot move in the y direction. At the same time, the locking shaft itself is blocked by the lower corner coupling. The shaft hole is limited and cannot move in the x direction. Therefore, the lock shaft cannot move relative to the lower angle coupling when the lock is in the locked state.
  • the limit of the lock shaft in the y direction is canceled, and the lock shaft can move along the y direction and come out of the shaft hole of the lower corner coupling.
  • the longitudinal support rod can connect with the lower The corner couplings disengage, taking the upper frame with them.
  • the four longitudinal support rods have the same length.
  • the longitudinal support rods When the four longitudinal support rods are placed on a plane as table legs, the longitudinal support rods can support the upper frame and keep the upper frame horizontal.
  • the flat plate portion 7801 can be installed on the upper frame to form a mobile table.
  • the mobile table can place tableware, food, drinks, board games and other objects in outdoor situations such as camping and picnics, which expands the application scenarios of portable vehicles and improves the efficiency of the present invention. Availability of portable vehicles.
  • the support reinforcement between the two support sections of the first support rod adopts the structure of bolt rods and bolts.
  • the bolt rods pass through the two adjacent support sections respectively.
  • the fasteners on the first support rod keep the first support rod in an unfolded state and improve the load-bearing capacity of the first support rod.
  • the flat plate portion includes two flat plate fasteners (not shown in the figure) arranged below the flat plate portion. When the flat plate portion is placed on the upper frame, the two flat plate fasteners are staggered with the fasteners provided on the second support section.
  • a Velcro is provided at the bottom of the flat plate portion 7801.
  • the fixation between the flat plate part and the upper frame may also be by snap-fit connection, threaded screw connection, or other detachable connection methods.
  • the flat plate portion 7801 includes two or more folding plates and a nylon cloth cover connected to each folding plate.
  • the nylon cloth cover forms an accommodation space according to the shape and number of the folding plates, and the folding plates are placed in the accommodation space. . Since the nylon cloth cover is soft in texture, the folding plate enclosed in the nylon cloth cover can switch between the open and folded states. When the folding plate is in the open state and placed on the upper frame, with the support of the upper frame, The folding panel can be in an open state.
  • the flat plate portion 7801 of this embodiment can also be disposed on the chassis assembly 740.
  • the portable vehicle can be used as a flatbed trailer.
  • the portable vehicle can be used as a flatbed trailer.
  • the vehicle can carry objects with greater length and width, which improves the carrying capacity of the portable vehicle.
  • the components provided on the chassis assembly 740 can also be storage boxes, water tanks, mobile devices, etc., further expanding the application scenarios of portable vehicles.
  • FIG 21 shows the specific structure of an embodiment of the front handle of the present invention.
  • the handle assembly 820 includes a front handle, specifically a handle 8201 and a handle frame 8202.
  • the handle 8201 is installed in the handle space formed by the handle frame 8202.
  • the handle frame 8202 is connected to the inner rod 8203.
  • the handle frame 8202 and the inner rod 8203 are integrally formed.
  • the outer rod 8204 has a hollow structure and is sleeved outside the inner rod 8203.
  • the inner rod 8203 can slide along the hollow structure of the outer rod 8204 to achieve elongation or contraction.
  • the handle assembly also includes a telescopic button 8205.
  • the telescopic button 8205 is provided at the opening of the handle frame and is located at the end of the handle. Setting the telescopic button at this position allows the operator to Convenient push switch controls the telescopic control of the handle.
  • the handle frame has a hollow structure, in which a first connecting rod 8206 and a second connecting rod 8207 are provided. Among them, one end of the first link 8206 is connected to the telescopic button 8205 and can move together with the pressing or lifting of the telescopic button 8205. The other end of the first link 8206 is rotationally connected to the second link 8207. The first The second connecting rods can change their mutual angles around the connecting axis.
  • the second connecting rod is sleeved on the rotating shaft 8208 and can rotate around the rotating shaft 8208.
  • the other end of the second connecting rod 8207 is connected to the wire rope 8210, and It can drive the steel wire rope 8210 to move up and down, and the steel wire rope is connected to the telescopic locking mechanism provided at the bottom of the front handle.
  • the telescopic locking mechanism is fixed to the inner rod 8203 and can move along the hollow outer rod together with the inner rod 8203.
  • the outer rod 8204 is provided with a plurality of limiting holes along the vertical direction.
  • the structure of the telescopic locking mechanism is shown in Figures 22 and 23, including a first slide block 8213 and second and third slide blocks 8214 and 8215.
  • the first slider 8213 is connected to the hook 8212 (or both are integrally formed), and the hook 8212 is connected to the wire rope 8210.
  • the wire rope is directly connected to the first slider.
  • the first slider 8213 can move up and down along the vertical direction under the pull of the wire rope 8210.
  • An elastic member 8216 is provided between the second slider 8214 and the third slider 8215.
  • the elastic member 8216 is a spring. More specifically, the elastic member 8216 is a compression spring.
  • the compression spring has a certain length.
  • the elastic member 8216 is provided between the second and third slide blocks for maintaining the distance between the second and third slide blocks.
  • the second and third slide blocks include a protruding part and a sliding part.
  • the shape of the protruding part corresponds to the shape of the limiting hole on the outer rod 8204, and can be snapped into the limiting hole to lock the telescopic length.
  • the sliding part is provided with a triangular sliding groove, and correspondingly, a triangular sliding platform is provided at the location where the first slide block 8213 contacts the second and third slide blocks.
  • the first link drives the end of the second link to move upward and pulls the wire rope upward.
  • the first slider 8213 also moves upward under the pulling force of the wire rope. Since the second and third sliders The sliding groove of the block and the sliding table of the first slide block are limited, the second and third slide blocks are close to each other, and the protrusion is retracted from the limiting hole on the outer rod 8204, and the elastic member 8216 produces elastic deformation . At this time, the inner rod 8203 and the outer rod 8204 can move with each other, thereby changing the telescopic length of the handle rod.
  • the second and third slide blocks return to the distanced state under the force of the elastic member 8216, and emerge from the corresponding limit hole of the outer rod 8204, limiting the relationship between the inner rod and the outer rod. The mutual movement between them keeps the handle at a telescopic length.
  • telescopic control buttons are provided in the handle frame openings on both sides of the handle.
  • the telescopic control buttons on both sides can pull the wire rope through the two-section connecting rod to control the bottom telescopic locking mechanism.

Abstract

本发明涉及一种便携式车辆,具体涉及一种能够在展开状态与折叠状态切换的便携式车辆,包括底架组件,用于提供底部支撑;框架组件,用于形成便携式车辆的容纳空间;把手组件,用于向底架组件和/或框架组件提供驱动力;车轮组件,用于支撑底架组件和/或框架组件,并带动底架组件和/或框架组件的移动;框架组件包括第一支撑杆、第二支撑杆以及纵向支撑杆,纵向支撑杆设置在底架组件与第一支撑杆、第二支撑杆之间;第一支撑杆、第二支撑杆与纵向支撑杆之间通过上部角耦合件连接;底架组件与纵向支撑杆之间通过下部角耦合件连接;第一支撑杆包括第一支撑段与第二支撑段,第一支撑段通过转动连接件与第二支撑段连接;第一支撑杆上设置有支撑加固件,支撑加固件的长度小于第一支撑段的长度;展开状态下,支撑加固件横跨第一支撑段、第二支撑段以限制第一支撑段、第二支撑段的相互转动;折叠状态下,支撑加固件被收纳至第一支撑段。本发明的便携式车辆质量轻、成本低、折叠不占空间、可扩展性强。

Description

便携式车辆 技术领域
本申请总体上涉及包括手推车、手拖车、营地车、露营车、沙滩车在内的便携式车辆,更具体的涉及一种能够在展开状态与折叠状态之间切换的、一般通过人力(也可以通过电力或其他能源)驱动的小型便携式车辆。
背景技术
在露营、野炊、沙滩聚会等户外活动的场合以及部分家庭搬运场合下,对一次性搬运大体积、大重量货物的车辆提出了需求。同时,由于这样的车辆需要随车运送或家庭存放,对其折叠便捷性、折叠后的体积、车身重量等便携性能亦提出了较高的要求。
存在这样的便携式车辆的技术方案:其主要框架采用了X型结构,利用该结构可以围绕X中心点转动的特点实现折叠功能。但X型结构的两个支撑杆的长度横跨便携式车辆框架距离最远的两个端点(对角线),并且为了保证其强度,往往需要采用金属的材质,导致整个便携式车辆重量的增加,不利于便携式车辆的便携性能。另外,对于X型结构的车架而言,由于其在折叠状态与展开状态的高度变化,便携式车辆的纵向支撑杆必须做成至少两段套接的伸缩杆结构,进一步增加了便携式车辆的重量。
另外,便携式车辆具有一定的深度以形成容纳货物的空间,因此,便携式车辆的载物能力还受到其框架尺寸的限制,这一点是采用以上设计的便携式车辆与普通平板车之间较大的区别之一。就以上的便携式车辆的设计方案而言,虽然金属材质以及X型结构在高度方向的限位能够保证车身框架的强度及稳定性,但是在面对较大体积的货物时,这样的便携式车辆往往无法完整的容纳这样的货物,导致货物掉落,限制了便携式车辆的应用范围。
当便携式车辆处于折叠状态时,往往需要通过扎带或者套袋扎紧便携式车辆的框架,使其保持折叠状态,否则便携式车辆就会倾向于展开至打开的状态。这样的保持折叠状态的技术方案引入了独立的、额外的部件(比如扎带或者套袋),增加了便携式车辆在折叠状态下的整体重量,并且这样的额外的部件不利于收纳,容易丢失。
中国实用新型专利CN215752484U公开了一种折叠拖车,该折叠拖车不具有侧边的X型结构,取而代之的是长度方向的较长的、可以围绕折合开关折叠的支撑杆。这样的结构虽然能够减小整个车辆的重量,但是这种具有相当长度的支撑杆在受到向下的作用力时非常容易变形损坏,降低了整个折叠拖车的车身稳定性,也降低了折叠拖车的承重能力。
中国实用新型专利CN208760679U公开了一种折叠手推车,其亦采用了长度方向的较长 的、可以围绕转动件折叠的支撑杆,为了提高该长度方向支撑杆的受力能力,其引入了四根斜撑杆。但斜撑杆的引入亦不可避免的增加了营地车的重量。
中国实用新型专利CN208760679U还公开了长度较长的支撑杆由两个支撑段组成,两个支撑段之间通过转动限位装置连接。转动限位装置整体呈圆形,包括旋转座与旋转体,旋转座与旋转体之间可以相对旋转,转动限位装置内部设置有限位结构,用于限制旋转座、旋转体之间的转动角度。组成支撑杆的两个支撑段分别连接至转动限位装置的旋转座与旋转体,支撑段在转动限位装置的带动下能够向内旋转以呈现“V”形的折叠状态,便于便携式车辆的收折。这样的转动限位装置只能够实现单向的限位,无法实现双向的限位,比如只能限制支撑杆从展开状态进一步向上折叠为倒“V”形,无法限制支撑杆从展开状态变成折叠状态。这种情况下,无法保证便携式车辆在展开状态下的车架稳定性。另一方面,支撑杆具有一定的长度,转动限位装置相当于支点,其对应于一个较长的力臂,在支撑杆受力时,转动限位装置承受的扭力成倍增长,对转动限位装置本身的强度、可靠性提出了非常高的要求。
基于以上技术问题,提出本发明的便携式车辆。
发明内容
在一个实施方案中,本发明公开了一种能够在展开状态与折叠状态切换的便携式车辆,包括:底架组件,用于提供底部支撑;框架组件,用于形成便携式车辆的容纳空间;把手组件,用于向底架组件和/或框架组件提供驱动力;车轮组件,用于支撑底架组件和/或框架组件,并带动底架组件和/或框架组件的移动;框架组件包括第一支撑杆、第二支撑杆以及纵向支撑杆,纵向支撑杆设置在底架组件与第一支撑杆、第二支撑杆之间;第一支撑杆、第二支撑杆与纵向支撑杆之间通过上部角耦合件连接;底架组件与纵向支撑杆之间通过下部角耦合件连接;第一支撑杆包括第一支撑段与第二支撑段,第一支撑段通过转动连接件与第二支撑段连接;第一支撑杆上设置有支撑加固件,支撑加固件的长度小于第一支撑段的长度;展开状态下,支撑加固件横跨第一支撑段、第二支撑段以限制第一支撑段、第二支撑段的相互转动;折叠状态下,支撑加固件被收纳至第一支撑段。
进一步的,转动连接件为转动轴。
进一步的,转动连接件为轴杆,轴杆包括设置在轴杆两端的轴孔,第一支撑段、第二支撑段分别通过轴孔与轴杆连接。
进一步的,轴杆的长度与第一支撑杆长度的比值范围为1/20~1/3。
进一步的,轴杆的长度与第一支撑杆长度的比值范围为1/5~1/4。
进一步的,底架组件包括底座、底座杆,底座具有底座延伸部,底座杆与底座延伸部及下部角耦合件转动连接;底座杆上设置有支撑连接件;底架还包括:底部支撑装置,包括固定座和牵引件,固定座连接至底座并能够随底座运动,牵引件的一端连接至固定座,牵引件的另一端连接至支撑连接件;展开状态下,牵引件向固定座提供第一牵引力;折叠状态下,牵引件向固定座提供第二牵引力,第二牵引力小于第一牵引力。
进一步的,固定座与底座一体成型。
进一步的,第二牵引力等于零。
进一步的,支撑加固件为支撑套筒,支撑套筒套接在第一支撑杆上并可以沿第一支撑杆滑动;展开状态时,支撑套筒同时套接第一支撑段、第二支撑段的一部分;折叠状态时,支撑套筒套接至第一支撑段。
进一步的,支撑加固件为限位杆,限位杆上设置有限位卡扣,限位杆的一端可旋转的安装在第一支撑段上;第二支撑段上设置有第一固定槽;展开状态时,限位杆的限位卡扣卡接至第一固定槽;折叠状态时,限位杆的限位卡扣从第一固定槽内脱出。
进一步的,第二支撑段上还设置有第二固定槽;折叠状态时,限位杆的限位卡扣卡接至第二固定槽。
进一步的,支撑加固件为栓杆,栓杆包括栓舌;第一支撑段、第二支撑段上设置有凸块,凸块能够与栓舌配合,起到固定栓杆位置的作用;第一支撑段上设置有至少两个拴扣,栓舌设置在至少两个拴扣之间;第二支撑段上设置有至少一个拴扣;展开状态时,栓杆同时穿过第一支撑段上的拴扣与第二支撑段上的拴扣,栓舌固定至第二支撑段的凸块中;折叠状态时,栓杆同时穿过第一支撑段上的拴扣,栓舌固定至第一支撑段的凸块中。
上述发明内容不包括本发明的所有方面的详尽列举。可预期的是,本发明包括可由上文概述的各个方面以及在下文的具体实施方式中公开并且在随该专利申请提交的权利要求书中特别指出的各个方面的所有合适的组合来实施的所有系统和方法。此类组合具有未在上述发明内容中具体阐述的特定优点。
附图说明
在附图的图示中通过举例而非限制的方式示出了实施方案,在附图中类似的附图标号指示 类似的元件。应当指出的是,在本公开中提到“一”或“一个”的实施方案未必是同一的实施方案。
图1示出了本发明的第一类实施例的便携式车辆在展开状态下的示意图;
图2示出了本发明的第一类实施例的便携式车辆在折叠状态下的示意图;
图3示出了本发明的第一类实施例的便携式车辆的底部结构示意图;
图4示出了本发明的第一类实施例的便携式车辆的角耦合件结构示意图;
图5示出了本发明的第一类实施例的便携式车辆的角耦合件的另一个视角的结构示意图;
图6示出了本发明的第一类实施例的便携式车辆俯视视角的结构示意图;
图7示出了本发明的第一类实施例的便携式车辆框架结构示意图;
图8示出了本发明的第二类实施例的便携式车辆在展开状态下的示意图;
图9示出了本发明的第二类实施例的便携式车辆的支撑杆的详细结构图;
图10示出了本发明的第二类实施例的便携式车辆在折叠状态下的示意图;
图11示出了本发明的第二类实施例的便携式车辆的底部结构示意图;
图12示出了本发明的第二类实施例的便携式车辆的支撑杆详的详细结构图;
图13示出了本发明的第三类实施例的便携式车辆在展开状态下的示意图;
图14示出了本发明的第三类实施例的便携式车辆的支撑杆的部分详细结构在不同视角的示意图;
图15示出了本发明的第三类实施例的便携式车辆的支撑杆的部分详细结构在不同视角的示意图;
图16示出了图13虚线框中的下部角耦合件的结构示意图;
图17示出了本发明的第三类实施例的便携式车辆在展开且框架分离状态下的示意图;
图18示出了本发明的第三类实施例的便携式车辆的下部角耦合件与纵向支撑杆的装配示意图;
图19示出了本发明的第三类实施例的便携式车辆在展开且框架分离状态下的示意图;
图20示出了本发明的第三类实施例的便携式车辆在展开为平板车状态下的示意图;
图21示出了本发明的第四类实施例的便携式车辆前把手的剖面示意图;
图22示出了图21的虚线框内的把手伸缩锁紧机构在一个状态下的剖面示意图;
图23示出了图21的虚线框内的把手伸缩锁紧机构在另一个状态下的剖面示意图。
具体实施方式
在这个部分中,我们将参考附图来解释本发明的若干实施方案。每当在实施方案中描述的部件的形状、相对位置和其它方面未明确限定时,本发明的范围并不仅局限于所示出的部件。所示出的部件仅用于例证的目的。另外,虽然阐述了许多细节,但应当理解,本发明的一些实施方案可在没有这些细节的情况下被实施。在其他情况下,未详细示出熟知的结构和技术,以免模糊对本描述的理解。
本文中所使用的术语仅是为了描述特定实施方案而并非旨在对本发明进行限制。空间相关术语,诸如“在……之下”、“在……下方”、“下”、“在……上方”、“上”等可在本文中用于描述的方便,以描述一个元件或特征与另外一个或多个元件或一个或多个特征的关系,如在附图中示出的。应当理解,空间相对术语旨在涵盖除了在附图中所示的取向之外的设备使用或操作过程中的不同取向。例如,如果附图中的设备被翻转,则被描述为在其他元件或特征“下方”或“之下”的元件然后可被取向成在其他元件或特征“上方”。因此,示例性术语“在……下方”可涵盖在……上方和在……下方这两个取向。设备可以另外的方式进行取向(例如,旋转90度或以其他取向),并且在本文中使用的空间相对描述词被相应地解释。
如本文所用,单数形式“一个”、“该”等旨在同样包括复数形式,除非上下文另外指出。应当进一步理解,术语“包括”和/或“包含”限定特征、步骤、操作、元件、和/或部件的存在,但不排除一个或多个其他特征、步骤、操作、元件、部件和/或其集合的存在或添加。
本文所使用的术语“或”和“和/或”应被解释为包含性的或意指任意一个或任意组合。因此,“A、B或C”或“A、B和/或C”指“以下中的任意一种:A;B;C;A和B;A和C;B和C;A、B和C。”只有当元素、功能、步骤或行为的组合在某种程度上是固有地相互排斥时,才会出现该定义的例外情况。
本文中所称的“连接”包括直接连接与间接连接在内的各种连接方式,不要求被连接的各个部位之间存在物理上的接触。包括了卡扣连接、螺丝连接、无固定装置的连接、焊接、铆接、一体成型在内的各种具体连接方式。在部件配合的场合下,包括了间隙配合、过渡配合、过盈配合或者可变间隙等各类配合关系。
第一类实施例
图1~图2为本发明的第一实施例的示意图,其中图1为本发明的便携式车辆的展开状态示意图,图2位本发明的便携式车辆的折叠状态示意图。
便携式车辆10包括框架组件110,前把手组件120,底架组件140,车轮组件150,后挡板组件160。框架组件110包括上框架与下框架以及设置在上、下框架之间的纵向支撑杆1109。 上框架包括长度方向的第一支撑杆以及宽度方向的第二支撑杆,第一支撑杆与第二支撑杆之间通过上部角耦合件1001连接以形成一个矩形的框架。
在本实施例中,第一支撑杆包括两个第一支撑段1102,第一支撑段1102的一端与上部角耦合件1001连接,另一端直接或间接的连接至相邻的第一支撑段。作为可选的实施方式,第一支撑杆包括三个或三个以上的第一支撑段,位于第一支撑杆两端的第一支撑段与上部角耦合件连接,其他第一支撑段之间直接或间接地连接。
如图2所示,两个第一支撑段1102之间通过转动连接件连接,在本实施例中,转动连接件为轴杆1107。轴杆1107两端分别设置有轴孔,设置在轴杆1107两边的第一支撑段1102通过设置在轴杆上的轴孔与轴杆转动连接,使两个第一支撑段1102能够相对转动,从而能够在折叠状态与展开状态之间切换。当便携式车辆处于展开状态时,两个第一支撑段1102基本呈直线,使第一支撑杆的长度最长;当便携式车辆处于折叠状态时,两个第一支撑段1102呈“V”形折叠状态,使整个便携式车辆的空间占用减少,提高便携性能。作为可选的实施方式,第一支撑段之间可以通过转动轴进行直接的连接,该连接方式未引入独立的转动连接部件,降低了便携式车辆的结构复杂度。
第一支撑杆上设置有支撑加固件,在本实施例中,支撑加固件为支撑套筒1103,支撑套筒1103套接在第一支撑杆上并能够沿着第一支撑杆滑动。在便携式车辆处于展开状态时,支撑套筒1103滑动至两个第一支撑段1102的连接部位,支撑套筒1103横跨轴杆1107以及设置在轴杆两端的第一支撑段1102,起到支撑轴杆以及左右两个第一支撑段的作用,使第一支撑杆保持大体呈直线的展开状态。
在便携式车辆处于展开状态时,第一支撑杆会受到向下的重力的作用,使第一支撑杆倾向于呈现V字形的弯折状态,另外,在便携式车辆处于使用状态时,第一支撑杆有可能会由于操作者的按压、重物的放置等受到向下的作用力,也容易产生变形。支撑套筒1103具有一定的长度且横跨轴杆以及设置在轴杆两端的第一支撑段,采用这样的设计,一方面能够通过刚性的套筒使第一支撑杆保持基本呈直线的状态;另一方面,由于在折叠或者自由运动状态下,第一支撑段的支点位于轴杆的转轴位置,当支撑套筒1103具有一定的长度且横跨轴杆以及相邻的支撑段时,第一支撑段的支点将从轴杆的转轴位置移动到与支撑套筒的末端位置,相当于把第一支撑段1102的支点向角耦合件1001移动,减小第一支撑段1102上的力矩,从而减小第一支撑段的变形。
在本实施例中,支撑套筒1103的长度大于轴杆的长度但小于至少一个第一支撑段1102的 长度。采用这样的设置,当便携式车辆处于折叠状态时,支撑套筒1103能够收纳在某个第一支撑段上且支撑套筒的端部不会露出该支撑段,避免支撑套筒对折叠的干涉,从而使便携式车辆得以顺利收折。
相比于X型侧架的折叠车结构,本发明的便携式车辆的车架采用横向放置的第一支撑杆,因此,第一支撑杆的强度特别是该支撑杆在承受重物的压力时的抗变形性至关重要。本实施例的轴杆1107具有一定的长度,通过设置该具有一定长度的轴杆,可以在便携式车辆的第一支撑杆整体长度不变的情况下减少第一支撑段的长度。由于较短的杆状物件的抗弯折强度要高于较长的杆状物件,采用这样的设置,能够提高第一支撑段的抗弯折强度,进而提高第一支撑杆整体的抗弯折强度。本实施例的轴杆的长度与第一支撑杆长度的(包括了轴杆1107的长度和两个支撑段1102的长度)比值的下限数值包括1/20、1/10、1/8、1/5,当轴杆的长度与第一支撑杆长度的比例在上述下限值之上时,能够有效减少第一支撑段的长度,提高第一支撑段抗弯折的能力;本实施例的轴杆的长度与第一支撑杆长度(包括了轴杆的长度和两个支撑段的长度)比值的上限包括1/3、3/10、4/15、1/4,由于在弯折状态下轴杆处于水平放置的状态,轴杆的长度将影响到便携式车辆的折叠紧凑度,当轴杆长度与第一支撑杆长度的比例在上限值之下时,能够提高便携式车辆的折叠紧凑性。作为可选的实施方式,轴杆的长度为第一支撑杆长度的1/20~1/3,例如,如果第一支撑杆长度为100cm,则轴杆的长度范围为5cm~33cm。作为另一种实施方式,轴杆的长度为第一支撑杆长度的1/8~3/10。作为再一种实施方式,轴杆的长度为第一支撑杆长度的1/5~1/4。当轴杆的长度位于上述范围内时,既能够减少第一支撑段的长度从而提高第一支撑段的本身的抗弯折性能,又能够降低便携式车辆在折叠状态下的空间占用。
对于宽度方向的第二支撑杆而言,其具有两个第二支撑段1105,两个第二支撑段1105能够在折叠或展开的状态相互切换。本实施例中,两个第二支撑段1105通过连接轴相连接,作为可选的实施方式,两个第二支撑段之间也可以通过轴杆等其他连接部件进行连接。在第二支撑杆上亦设置有支撑套筒1106,当便携式车辆处于展开状态时,支撑套筒移动至两个第二支撑段1105的连接部位,横跨两个第二支撑段,使第二支撑杆大体呈直线状态。当便携式车辆处于折叠状态时,支撑套筒收纳在任意一个第二支撑段上,保证便携式车辆能够顺利折叠。
上部角耦合件1001用于连接上框架的第一支撑杆与第二支撑杆,并连接纵向支撑杆1108。上部角耦合件1001具有三个延伸部,这三个延伸部分别形成容纳第一支撑杆、第二支撑杆和纵向支撑杆的容纳槽,每两个延伸部之间相互垂直。上部角耦合件设置有转轴孔,第一支撑杆、第二支撑杆对应的连接段通过转轴孔与上部角耦合件1001进行转动连接。上部角耦合件1001 用于容纳第一、第二支撑杆的容纳槽下部开口而上部封闭,用于对第一、第二支撑杆的转动方向进行限位,在上部角耦合件的限位作用下,第一支撑杆、第二支撑杆的折叠方向被限制为只能向下运动而进行折叠。上部角耦合件在垂直方向的延伸部设置有固定槽,纵向支撑杆1108设置在固定槽中以实现与上部角耦合件之间的连接和固定。用于固定纵向支撑杆的方式可以是螺丝、螺栓、卡扣等方式,甚至可以将上部角耦合件与纵向支撑杆一体成型,以确保上部角耦合件与纵向支撑杆之间的连接稳定性。
作为可选的实施方式,上部角耦合件只设置有一个或两个延伸部,比如上部角耦合件只设置有用于容纳长度方向支撑杆的第一延伸部,或者只设置有用于容纳宽度方向延伸杆的第二延伸部,或者同时设置有第一、第二延伸部。在只设置一个延伸部或两个延伸部的情况下,能够尽可能的降低上部角耦合件整体的重量。
下框架包括长度方向的第三支撑杆1113与宽度方向的第四支撑杆1114,第三支撑杆、第四支撑杆分别连接至下部角耦合件1002、1003从而形成下部框架。下部角耦合件1002、1003设置有长度方向与宽度方向的容纳槽,容纳槽上部开口,用于对第三支撑杆与第四支撑杆进行限位,第三支撑杆1113、第四支撑杆1114的端部与下部角耦合件的容纳槽之间可拆卸的连接,在便携式车辆处于折叠状态时,第三支撑杆1113、1114可以从下部角耦合件的容纳槽内被拆卸,使便携式车辆能够顺利折叠,降低便携式车辆的空间占用。在本实施例中,第三、第四支撑杆能够提高下部框架的强度,并且,当需要在便携式车辆底部安装底板时,第三支撑杆能够提供底板支撑结构,提高底板安装的稳固性。对第三、第四支撑杆的材料没有特别的限制,可以采用金属材料,也可以采用塑料材料,当第三、第四支撑杆使用塑料材料时,能够减少第三、第四支撑杆的重量,使便携式车辆轻量化。
作为可选的实施方式,第三支撑杆1113、第四支撑杆1114为折叠杆,当便携式车辆处于折叠状态时,第三、第四支撑杆呈“V字”形折叠状态。采用这样的设计,无需在便携式车辆折叠时拆除第三、第四支撑杆,能够使便携式车辆的折叠更加方便。
如图1、图3所示,便携式车辆还包括底架组件140,底架组件包括底座1401,底座1401具有沿着底架的对角线延伸的底座延伸部1404。底座1401设置有底座杆安装槽,底座杆安装槽上设置有安装孔,底座杆1402的一端通过安装孔可旋转的安装至底座杆安装槽。底座杆安装槽向下开口以限制底座杆1402向上转动,在便携式车辆处于展开状态时,底架组件140处于伸展状态,底座杆1402贴合或靠近底座1401的底座杆安装槽上部,当底座1401承受重力时,底座杆1402能够通过转轴与底座延伸部提供向上的反作用力以避免底座1401向下运动导 致便携式车辆的底部凹陷。底座延伸部1401具有一定的长度,在本实施例中,两个对角设置的底座延伸部1404的对角线长度为y,底架组件的对角线长度为d,y与d的比值范围下限的取值包括10%、15%、20%,通过设置底座延伸部的对角长度与底架组件对角线长度的比值大于下限值,底座安装槽能够覆盖更多长度的底座杆,从而能够进一步提升底座1401的承重能力;底座延伸部1404的对角线长度y相比于底架组件的对角线长度d的比值范围上限的取值包括25%、30%、35%,由于底座延伸部本身是刚性的,起到承重的作用,因此底座延伸部在便携式车辆处于折叠状态时无法一并折叠,通过将底座延伸部1404的对角线长度设定在上限数值之下,能够提高便携式车辆的折叠紧凑性,避免在折叠状态下底座占用过多的空间。底座延伸部1404的对角长度y相比于底架组件的对角长度d的比值范围为10%~35%,可选的,该比值范围为15%~30%,另外可选的,该比值范围为20%~30%。
底座杆1402的另一端安装至下部角耦合件1002、1003,并能够绕着下部角耦合件旋转。如图2所示,在折叠状态下,底座1401向上抬升,底座杆1402向内收起,底座杆拉动下部角耦合件相互靠近,并带动上框架、下框架的折叠,此时,上部角耦合件之间也相互接近。便携式车辆最终将呈现一种上部角耦合件围绕并靠近底座、水平方向的支撑杆折叠或拆除、纵向支撑杆相互邻近的折叠状态。
如图1所示,便携式车辆还包括后挡板组件160,后挡板组件设置在便携式车辆框架远离前把手的一端。后挡板包括两根后挡板支架1601以及设置在后挡板支架间的交错杆1602,交错杆1602作为后挡板阻挡件的一种,能够防止放置在便携式车辆框架内的货物从便携式车辆的后部漏出。后挡板支架1601的一端与下部角耦合件1002连接,作为可选的实施方式,这种连接可以是一种转动连接,通过这种转动连接,能够使后挡板在收起与放下状态之间切换。当后挡板收起时,后挡板起到阻挡便携式车辆框架内物体漏出的作用;当后挡板放下时,能够增加便携式营地车水平方向的载物面积,此时,如果便携式车辆能够将纵向支撑杆连通上框架一并拆除而变成平板车,放下的挡板可以进一步增加平板车的载物面积。作为一种可选的实施方式,后挡板可以采用一体成型的方式设置,比如设置成“U”形。作为另一种可选的实施方式,后挡板的阻挡件可以为在后挡板框架之间设置钢丝绳、弹性绳、网兜等各种用于阻挡物件漏出的结构。
图4、图5为本实施例的上部角耦合件的细节图,上部角耦合件1001在第一支撑杆方向上的延伸部为第一延伸部1002,其具有一定的长度,并且在第一延伸部端部的边角位置设置有框架限位部1003。在本实施例中,框架限位部1003为弹性限位部,包括弹簧与固定在弹簧 一端的球体,当球体受到压力时会向下运动并压迫弹簧使其产生弹性形变,此时,第一支撑杆能够顺利的在第一延伸部内进行转动。当球体受到的压力撤走后,弹簧向外弹出并使球体向外运动以凸出延伸部端面,此时,第一支撑杆在第一延伸部内的转动就会受到框架限位部的限制,从而增加了第一支撑杆改变运动趋势的难度。具体的,当第一支撑杆处于展开状态时,弹性限位部位于第一支撑杆的下侧,限制第一支撑杆向下运动,使第一支撑杆保持展开状态;当第一支撑杆处于折叠状态时,弹性限位部位于第一支撑杆的外侧,限制第一支撑杆向外运动,使第一支撑杆保持折叠状态。采用这样的设计,能够提高便携式车辆在折叠、展开状态下的状态稳定性。在本实施例中,弹性限位部的限位结构采用球体,能够利用第一支撑杆在球体上的运动产生向下的压力,从而方便地按下球体。这里的球体也可以是其他具有曲面的结构,包括半球体、椭球体。
作为可选的实施方式,限位部为非弹性限位部(图中未示出),进一步可选的,非弹性限位部为插销限位装置,包括设置在角耦合件边角的插销孔以及能够在该插销孔中运动的插销。当便携式车辆需要改变位置时,从插销孔中拉出插销,支撑杆没有了插销的限位,能够自由地转动。当便携式车辆处于展开或者折叠状态,并且需要保持该状态时,插销被锁紧,设置在角耦合件边角部位的插销对支撑杆进行限位,使便携式车辆保持展开或者折叠状态,提高便携式车辆的使用便捷性。作为其他可选的实施方式,非弹性限位部还包括螺杆、卡扣等。
作为其他可选的实施方式,限位部还可以设置在任意角耦合件延伸部的边角位置或者设置在底座延伸部的边角位置。当下部角耦合件延伸部的边角位置设置有框架限位部时,框架限位部能够对第三和/或第四支撑杆起限位作用;当底座延伸部的边角位置设置有底架限位部时,能够对底座杆起到限位作用。限位部在便携式车辆处于折叠或者展开状态时,对支撑杆和/或底座杆起限位作用,避免便携式车辆在折叠状态下自主的展开,也避免便携式车辆在展开状态下由于受到特定方向作用力而折叠。
如图1、2所示,前把手组件120设置在便携式车辆的前部,该把手组件的主要作用是提供拉力,这样的操作方式更加适用于大负载的便携式车辆拉行的场合。前把手组件120包括握把1201,握把1202安装在把手架1202上,把手架1202呈U型,采用这样的设计,能够在握把与把手架中留出足够的握持空间,提高把手的握持舒适度。握把1201上可以套装皮质或仿皮的材料以提高握持的舒适性,把手架1202与握把1201围成的空间内也可以通过海绵、皮质或仿皮材料设置缓冲结构,进一步提高握持的舒适性。把手架1202连接至把手杆,把手杆包括三段互相套接的伸缩杆1203、1204、1205,伸缩杆1203、1204能够相对于套接在其外部的 伸缩杆滑动,以起到伸缩、展开的效果。伸缩杆1203、1204底部设置有限位装置以避免伸缩杆在伸长的过程中脱离其套接的伸缩杆。本实施例的伸缩杆表面设置有竖直方向的多条加强筋,这些加强筋能够增加伸缩杆的强度,避免其变形。作为可选的实施方式,还可以设置网格状、波浪状等其他类型的加强筋。把手连杆1207安装至把手座1206,把手座1206设置有把手连杆安装槽,把手连杆1207的一端与把手连杆安装槽可转动的连接,把手连杆1207的另一端连接至下部角耦合件。作为可选的实施方式,把手连杆也可以连接至下框架或底架。把手连杆安装槽具有一定的活动空间,使得把手连杆1207在连接至把手连杆安装槽后也能够在该安装槽内一定的角度范围内运动。同时,把手连杆1207的另一端通过安装滑块1208安装至下部角耦合件1003。安装滑块1208能够在下部角耦合件的安装槽内沿着便携式车辆的长度方向转动。安装滑块1208与把手连杆1207的一端转动连接,安装滑块具有一定的高度并突出下部角耦合件,其垫高了把手连杆1207的安装位置,避免了把手连杆1207与下部角耦合件之间的干涉,使得横向设置的把手连杆1207能够随着滑块的转动沿着便携式车辆的长度方向转动。基于以上设置,前把手组件120能够沿着便携式车辆的长度方向转动,并且也能够在便携式车辆的宽度方向转动一定的角度,操作者能够通过该把手很好地控制便携式车辆的转弯、脱困等方向性操作,提高了便携式车辆的操作便捷性。
车轮组件150用于承载便携式车辆并带动便携式车辆的移动。车轮组件包括前轮1501和后轮1503,前轮1501上设置有刹车片1502,后轮1503上设置有刹车片1504。前轮1501是万向轮,能够在使用把手120拉动便携式车辆的场合下提高便携式车辆的可操作性。作为可选的实施方式,后轮1503也是万向轮,前轮1501与后轮1503上设置有方向锁定装置,在使用前把手驱动便携式车辆时,松开前轮1501的方向锁定装置,锁紧后轮1503的方向锁定装置,在这种情况下,只有前轮具有万向调节功能。在某些场景下,便携式车辆具有后把手(图中未示出),或者需要从便携式车辆的后端推动车辆,此时,松开后轮1503的方向锁定装置,锁紧前轮1501的方向锁定装置,在这种情况下,只有后轮具有万向调节功能。针对前、后轮皆采用方向锁定装置,操作者无论是从哪个方向驱动便携式车辆,都能够将靠近驱动方向/位置的车轮设置为万向轮,将远离驱动方向/位置的车轮的方向锁定,从而能够很好的控制便携式车辆的方向。作为另一种可选的实施方式,车轮组件通过快拆结构安装至便携式车辆主体,当需要更换/切换万向轮时,能够通过快拆结构快速的实现更换效果。这里的快拆结构没有特别的限定,包括卡扣、螺纹、弹性套筒在内的各种快拆结构。
在使用本发明第一实施例的便携式车辆时,如图1所示,在展开状态下,上框架的第一支 撑杆、第二支撑杆都处于展开状态,具体的,第一支撑杆的两个第一支撑段1102相对设置并且与连接支撑段的轴杆1107基本位于同一直线上,第二支撑杆的两个第一支撑段1105亦相对设置并基本呈直线状态。支撑套筒1103安装至轴杆1107的位置并且横跨相邻的两个支撑段1102,此时,支撑套筒1103对轴杆及其两边的支撑段同时起到限位的作用,使得第一支撑杆在展开状态下基本呈直线且能够保持伸直的状态。设置在第二支撑杆上的支撑套筒1106在展开状态下安装至第二支撑段1105相互连接的位置,使第二支撑杆在展开的状态下能够基本保持直线。在展开状态下,把手组件120可以根据使用者的身高或特定的需求伸展特定的长度,从而便于使用者的操作。
如图2所示,在折叠本发明第一实施例的便携式车辆时,第一支撑杆的轴杆向下运动,使得两个第一支撑段、第二支撑段围绕上部角耦合件转动,并使第一支撑杆、第二支撑杆呈“V”字型折叠形态。同时,底座1401向上运动,底座杆1402围绕底座延伸部1404转轴与下部角耦合件1002、1003的转轴运动,上部角耦合件与下部角耦合件分别接近彼此,实现向内的折叠。在折叠状态下,支撑套筒1103滑动收纳至第一支撑段上,支撑套筒的任意一端不与轴杆或相邻的支撑段接触。在折叠状态下,底座1401与上部的角耦合件1001基本处于贴合或者靠近的状态,并且底座1401在折叠状态下的水平高度基本上与角耦合件1001的上部平齐。在折叠状态下,把手组件120可以处于折叠状态,也可以处于展开状态,操作者仍然可以通过把手组件120操作处于折叠状态下的营地车。
作为本发明的第一实施例的便携式车辆,在没有采用侧边的X型结构的情况下能够保证车身框架的强度,减少了便携式车辆所用的支撑杆的总体的长度,使便携式车辆的重量降低,提高了便携式车辆的便携性能。
在第三支撑杆可折叠时,可能会带来位于同一个垂直平面上的两个支撑杆在折叠状态下相互干涉的问题:由于第一支撑杆在折叠时呈正“V字”形,第三支撑杆在折叠时呈倒“V字”形,两者在折叠状态下可能会相互干涉。
如图6所示为本实施例的便携式车辆的俯视图,在该实施方式中,两根第三支撑杆1113之间的距离dl要短于两根第一支撑杆1102之间的距离du,使第一支撑杆、第三支撑杆在平面上的投影不重叠,呈现“交错”的状态。采用这样的设计,当便携式车辆处于折叠状态时,第一支撑杆向内弯折,呈正“V”字形,第三支撑杆向上弯折,呈倒“V”字形,第一、第三支撑杆在便携式车辆宽度方向上错开,避免了相互之间的干涉,也能提高空间利用率。作为可选的实施方式,两根第三支撑杆1113之间的距离dl要长于两根第一支撑杆1102之间的距离d2, 采用这样的设置,能够扩展便携式车辆的底部容纳空间。
作为侧边折叠结构的另一种可选的实施方式,如图7所示,第一支撑杆、第三支撑杆由长度不同的支撑段组成,第一支撑杆在图示靠左的位置为长度较长的支撑段1701,在图示靠右的位置为长度较短的支撑段1702,两个支撑段之间通过轴杆1703连接;第三支撑杆在图示靠左位置的支撑段为长度较短的支撑段1704,在图示靠右位置为长度较长的支撑段1705,两个支撑段之间通过转动连接件1706连接。采用这样的设计,能够使得上框架、下框架的支撑杆在折叠状态下呈现“交错”的姿态,避免相互干涉,使便携式车辆的折叠状态更为紧凑。在本实施例中,定义较长的一个支撑段的长度与较短的一个支撑段长度之间的差值与较长的支撑段的长度的比值范围为“长度偏差比”,本实施例的长度偏差比的下限值包括5%、10%、15%。当长、短支撑段的长度偏差比在这些下限值之上时,确保支撑段在折叠状态下能够呈现相互“交错”的姿态,实现结构紧凑的折叠。本实施例的支撑段的长度偏差比的上限值包括20%、25%、30%,当长、短支撑段的长度偏差值在这些上限值之下时,长、短设计的两个支撑段在折叠状态的旋转角度较大,较大的旋转角度对应着较短的横向距离,进一步提高便携式车辆的折叠紧凑性。例如,对于总长度为100cm的第一支撑杆而言,轴杆的长度为5cm,支撑段1701、1702的长度分别为47cm、38cm,其“长度偏差比”为(47-38)/47*100%≈19.1%。
第二类实施例
如图8所示为本发明的第二实施例,便携式车辆20包括框架组件,前把手组件,后把手组件,底架组件,车轮组件。框架组件包括上框架与纵向支撑杆2108,纵向支撑杆2108设置在底架组件与上框架之间,用于连接上框架与底架组件。上框架包括设置在长度方向的第一支撑杆以及宽度方向的第二支撑杆,第一支撑杆包括至少两段第一支撑段2102、2104,第二支撑杆包括两段第二支撑段。第一支撑杆与第二支撑杆通过上部角耦合件2001连接以形成一个矩形的框架。在本实施例中,便携式车辆的底部仅包括横向设置的第四支撑杆,作为可选的实施方式,便携式车辆的底部不包括长度方向、宽度方向的支撑杆。作为其他可选的实施方式,当便携式车辆的底部不具备宽度方向的支撑杆时,便携式车辆的把手连杆在完全打开的状态下的长度等于两个下部角耦合件之间的距离,以起到代替宽度方向支撑杆的作用。
后把手组件230设置在便携式车辆的后部,该后把手组件的主要的作用是提供推力,适用于推动营地车运动的场合。后把手组件230包括下段把手2301与上段把手2302。上、下两段把手通过转动连接件2303连接,上、下两段把手能够绕着转动连接件2303转动,从而能够为操作者提供舒适的操作角度。上把手2302包括两段把手段,两段把手段之间通过转动连接件 2304转动连接,转动连接件2304使得上把手的两把手段能够进行“V”字形折叠,从而减少便携式车辆的折叠体积。
第一支撑杆的两个第一支撑段2102、2104之间通过轴杆2107连接。在便携式车辆的展开状态下,第一支撑段2102、2104向外翻折至两个支撑段基本成直线,并使整个便携式车辆在展开状态下的框架有效面积最大。
第一支撑杆还包括支撑加固件,在本实施例中,支撑加固件为限位杆2103,限位杆2103可转动的连接至两个第一支撑段中的任意一个,在与连接限位杆2103相邻的另一个支撑段中设置有限位卡槽2111。在本实施例中,限位杆2103可转动的连接至第一支撑段2102,限位杆2013可以在垂直/或大体垂直于便携式车辆底面的平面内旋转。作为可选的实施方式,限位杆也可以在平行/或大体平行于便携式车辆底面的平面内旋转。限位杆的另一端设置有限位卡扣2106,在便携式车辆处于展开状态时,限位杆2103通过限位卡扣2106卡接在支撑段2102的第一限位卡槽2111内。此时,限位杆2103横跨两个第一支撑段2102、2104,并且同时向这两个支撑段提供支撑力,从而确保两个第一支撑段在展开状态下能够保持直线状态。同时,由于限位杆2103本身具有一定的强度,通过这样的设置能够提高第一支撑杆在展开状态下的承重能力。
如图8所示,便携式车辆的底架组件包括底座2401,底座2401具有底座延伸部,底座延伸部向便携式车辆框架的四个对角延伸,底座杆2402的一端可转动的连接至底座,底座杆2402的另一端可转动连接至下部角耦合件2002和/或纵向支撑杆。通过设置底座延伸部,便携式车辆处于展开状态时,底座杆受到底座延伸部的承托,减小了底座杆的力臂,使得底座杆能够承受更大的重量,避免底座向下进一步的运动,提高了底架组件的结构稳定性,进而提高整个便携式车辆的结构稳定性。
底架组件还包括底部支撑装置,底部支撑装置包括固定座2410和牵引件,在本实施例中,牵引件包括第一拉杆2411、第二拉杆2412。固定座2410与底座2401连接,能够跟随底座的运动而运动。固定座2410与底座之间的连接方式可以是固定的连接也可以是弹性的连接,只要这种连接能够使固定座向底座施加作用力并能够随着底座运动就可以。作为可选的实施方式,固定座与底座一体成型。
第一拉杆2411的一端与第二拉杆2412转动连接,第一拉杆2411的另一端通过第一固定轴(未示出)转动连接至固定座2410,第二拉杆2412的一端通过第二固定轴(未示出)转动连接至支撑连接件2416。支撑连接件2416安装至底座杆2402并能够随底座杆2402运动,支 撑连接件2416与底座杆2402之间不产生相互的位移。作为可选的实施方式,支撑连接件2416与底座杆2402之间能够在一定范围内产生位移,这种位移能够为牵引件的折叠提供更多的空间,增加整个便携式车辆的折叠顺滑度,同时,由于支撑连接件与底座杆之间的位移被限制在一定范围内,牵引件还是可以通过支撑连接件2416向底座杆提供作用力。
如图所示,第一拉杆2411、第二拉杆2412通过转动连接件2414连接,转动连接件具有第一转动连接部与第二转动连接部,两个转动连接部之间设置有一定的距离,第一拉杆、第二拉杆分别通过设置在转动连接件2414上的转动连接部连接,使第一拉杆、第二拉杆都能够绕转动连接件2414转动从而实现相对的转动。第一转动连接部与固定座2410之间的相对位置保持不变,进而与底座之间的相对位置保持不变;第二转动连接部与支撑连接件2416的相对位置保持不变,进而与底座杆2402的相对位置保持不变。当便携式车辆在展开状态与折叠状态之间切换时,固定座2410与支撑连接件2416之间的直线距离经历一个远、近变化的过程,而第一拉杆2411、第二拉杆2412都是刚性的结构,自身难以折叠。通过设置转动连接件2414,能够使刚性的第一拉杆2411、第二拉杆2412与固定座、底座杆连接的两个端点之间的距离随着便携式车辆的折叠、展开而变化,使本实施例中的牵引件的折叠成为可能,从而实现底部支撑装置的折叠与展开。作为可选的实施方式,在本实施例中,支撑连接件2416与底座杆一体成型。
当便携式车辆处于展开状态且车内设置有重物时,底座2401在重物的重力作用下具有向下运动的趋势,造成便携式车辆内部的“凹陷”,这种“凹陷”越大,说明便携式车辆的载重能力越弱。换句话说,底架组件在承受重物时不产生凹陷的能力对应了便携式车辆的载物能力。通过设置底部支撑装置,当底座2401产生向下运动的趋势时,第一拉杆2411、第二拉杆2412能够向固定座2410提供拉力,这个拉力的垂直向上的分力传递至底座2401,阻止了底座2401的向下运动,避免底架组件的凹陷,提高了底架组件的结构稳固性,进而提高了便携式车辆的承重能力。
如图9所示为另一种限位杆的实施方式,在本实施例中,第一支撑杆包括3102、3104两端支撑段,除了限位卡扣3106与第一限位卡槽3111外,第一支撑段3104上还设置有第二限位卡槽3112,当便携式车辆处于展开状态时,限位杆3103的限位卡扣3106卡入第一限位卡槽3111中,使便携式车辆保持展开状态。如图10所示,当便携式车辆处于折叠状态时,限位杆3103的限位卡扣3106卡入第二限位卡槽3112中,使便携式车辆保持折叠状态。通过分别 设置第一限位卡槽3111与第二限位卡槽3112,使便携式车辆既能够保持展开状态,也能够保持折叠状态,解决了现有的便携式车辆在折叠状态下需要通过扣绳或者布套进行固定的问题,防止扣绳或布套的丢失,提高便携式车辆的使用便捷性。在采用限位杆3103作为第一支撑杆加固装置时,还可以同时使用支撑套筒3105作为加固装置,进一步的增加了第一支撑杆在展开状态下的强度。
如图11所示为本发明的底部支撑装置的另一实施例。底架组件440包括底座4401以及与底座转动连接的底座杆4402。底架组件440还包括底部支撑装置,底部支撑装置包括固定座4410和牵引件4411,固定座4410安装至底座4401并能够随底座运动,固定座4410亦能够向底座4401提供相互作用力。作为可选的实施方式,固定座与底座一体成型。支撑连接件4412安装至底座杆4402并能够随底座杆4402运动,支撑连接件4412能够向底座杆4402提供相互作用力。作为可选的实施方式,支撑连接件与底座杆一体成型。牵引件4411设置在固定座4410与支撑连接件4412之间,在本实施例中,牵引件4411为弹性拉绳,弹性拉绳在受到拉力的情况下产生弹性形变,拉力撤走后,弹性拉绳能够恢复原来的长度。弹性拉绳的弹性形变越大,其产生的弹性拉力越大。牵引件4411的一端连接至固定座4410,另一端连接至支撑连接件4412。牵引件4411分别向固定座4410以及支撑连接件4412提供拉力,其中,牵引件4411向固定座4410提供的拉力具有向上的分力,这个分力与底座4401承受的重力相互抵销或部分抵销,避免底座4401向下运动而产生凹陷。通过这样的设置,在便携式车辆处于展开状态时,支撑连接件4412与固定座4410之间的距离最大,牵引件4411的弹性形变最大,也就意味着牵引件4411向固定座提供的拉力最大,进一步提高了底架组件的承重能力。除此之外,由于弹性拉绳具有一定的形变能力,其能够起到减震作用,在运输易碎物品、精密仪器等货物的场合下,这种减震效果能够有效的保护便携式车辆中放置的货物。
作为一种可选的实施方式,牵引件还可以是钢丝绳或者其他不具有弹性或弹性较弱的刚性拉绳,刚性拉绳的长度不大于在展开状态下支撑连接件与固定座之间的距离,此时,牵引件具有一定的结构强度,较难被拉断,从而能够有效地对底座提供牵引力。同时,由于牵引件不产生或较难产生弹性形变,只有在便携式车辆中放置有货物时,牵引件才会在固定座、底座杆之间产生相互作用力。相比之下,如果牵引件为弹性拉绳,在便携式车辆处于展开状态时,就算便携式车辆不承载货物,弹性拉绳也可能持续地对底座提供牵引力,使便携式车辆产生向内折叠的趋势而不能保持折叠状态,影响部分的用户体验。
作为另一种可选的实施方式,在牵引件为弹性拉绳的场合下,定义弹性拉绳未产生弹性形变的长度为弹性拉绳长度,定义固定座到支撑连接件的距离为展开距离(具体指固定座与弹性拉绳的连接部位到支撑连接件与弹性拉绳的连接部位之间的距离)。在本实施例中,弹性拉绳的长度小于等于展开距离,通过这样的设置,当便携式车辆载物时,无论货物的轻重,弹性拉绳都能够产生弹性形变,向固定座提供牵引力。同时,设置弹性拉绳长度与展开距离之间的比值下限为70%,优选为80%,更优选为90%,通过控制弹性拉绳在展开状态下的弹性形变,减小弹性拉绳在空载情况下产生的牵引力,降低便携式车辆向内折叠的趋势。
如图12所示为本发明的另一种支撑加固件实施例的示意图。当便携式车辆处于展开状态时,支撑加固件用于使相邻的两个支撑段4102、4104保持直线状态并能够分担支撑杆所承受的部分重力。支撑加固件为拴杆4106,支撑段4102、4104上设置有拴扣4105、4108、4109,在本实施例中,拴扣4105、4108设置在支撑段4102上,拴扣4109设置在支撑段4104上,除此之外,支撑段4102上还设置有第一凸块4111、第二凸块4112。栓杆4106上固定连接有栓舌4110。栓杆4106能够在拴扣4105、4108、4109与支撑段之间形成的空间内移动,从而使得支撑加固件在锁扣状态与打开状态之间切换。当便携式车辆处于展开状态时,拴杆4106分别穿过拴扣4108、4109以横跨相邻的支撑段4102、4104,同时栓舌4110扣入第一凸块4111中。此时,由于栓杆、拴扣、栓舌的限位,支撑段4102、4104与栓杆4106之间存在接触并施加相互作用力,使得支撑段4102、4104之间无法进行相对的转动,提高了支撑杆在展开状态下的稳定性,增加了承重能力。并且,由于拴扣4108、4109与各自支撑段的端部都具有一定的距离,拴扣4108、4109分别可以看作是其所在的支撑段的支点,相比于现有技术中采用的转动连接件内部限位的技术方案,本实施例的支撑加固件施加在支撑段上的作用力乘以该作用力到拴扣之间的距离所得的力矩的数值进一步减小,提高了拴扣4108、4109的稳固性,进一步提高了上框架支撑杆的承重能力。当便携式车辆将要折叠或者处于折叠状态时,拴杆4106分别穿过设置在支撑段4102上的两个拴扣4105、4108,不穿过设置在支撑段4104上的拴扣4109,拴舌4110扣入第二凸块411中,此时,栓杆收纳在第一支撑段上,同时支撑段4102、4104能够沿着轴杆4103自由转动,从而实现上框架支撑杆的折叠。
作为其他可选的实施方式,第一支撑杆采用空心的支撑段,栓杆设置在支撑段内部,提高结构简洁性。
第三类实施例
如图13、14所示为本发明的另一个实施例。便携式车辆50包括框架组件,把手组件,底 架组件,车轮组件。框架组件包括上框架以及纵向支撑杆,纵向支撑杆与上框架连接。上框架包括长度方向的第一支撑杆以及宽度方向的第二支撑杆,第一支撑杆包括至少两段第一支撑段,第二支撑杆包括至少两段第二支撑段。第一支撑杆与第二支撑杆之间通过上部角耦合件相连接以形成一个矩形的框架。
在本实施例中,第二支撑杆能够沿着第二支撑杆延伸的方向伸缩,从而改变第二支撑杆的整体长度。在本实施例中,第二支撑杆具有两个宽度支撑段,每一段宽度支撑段包括了外杆5105与内杆5106,外杆具有中空的结构,内杆设置在外杆的中空结构中并能够沿着外杆移动。如图14所示为本实施例宽度支撑段某一支撑段的细节图,在本实施例中,内杆上设置有多个弹性卡扣5108,外杆上设置有限位卡孔5107,在内杆沿着外杆的中空结构移动的过程中,当内杆上设置的弹性卡扣与外杆上的限位卡孔相对应时,内杆上的弹性卡扣与外杆上的限位卡孔配合,对内杆起到限位的作用。当需要变换内杆与外杆的相对位置时,按下内杆上的弹性卡扣,此时,由于内杆与外杆之间不再具有限位的关系,内杆能够沿着外杆的中空结构自由移动,从而使第二支撑段在伸长状态与收缩状态之间切换。通过在内杆上设置多个弹性卡扣,在实际操作时,只需要堵住外杆上的限位卡孔,不让内杆上的弹性卡扣弹出,就能够很方便的使内杆在外杆的中空结构中滑动,提高了第二支撑段伸缩长度调节的便捷性。设置在角耦合件5001上的锁紧旋钮5009用于使纵向支撑杆固定在角耦合件中。
如图15所示为本发明的可伸缩的第二支撑段的另一实施例,在本实施例中,第二支撑段包括外杆6105与内杆6106,外杆具有中空的结构,内杆设置在外杆的中空结构中并能够沿着外杆移动。内杆上设置有多个卡槽6108,外杆上设置有卡扣6109,外杆上设置的卡扣能够在锁扣状态与脱扣状态之间切换。当内杆上的卡槽与外杆上的卡扣位置相对应时,通过按压或者旋转设置在外杆上的卡扣的方式使卡扣处于锁扣状态,此时,卡扣朝向内杆的方向突出,突出的卡扣与内杆上的卡槽相互配合且限位,使内杆、外杆的相对位置保持固定。当需要改变内杆、外杆的相对位置时,通过按压或者旋转设置在外杆上的卡扣使其处于脱扣状态,在脱扣状态下,设置在外杆上的卡扣与设置在内杆上的卡槽之间不再具有限位的关系,内杆能够沿着外杆的中空结构自由移动,从而使第二支撑段在伸长状态与收缩状态之间切换。相比于在内杆上设置弹性卡扣的技术方案,仅在外杆上设置能够在锁扣、脱扣状态切换的卡扣,降低了支撑杆伸缩结构的复杂程度,在减少成本的同时提高了第二支撑段伸缩结构的可靠性。作为其他伸缩限位装置,还可以利用螺丝拧紧提供摩擦力等方式,对伸缩后的支撑杆实现状态锁定或固定。设置在角耦合件6001上的锁紧旋钮6009用于紧固纵向支撑杆与角耦合件。
作为其他可选的实施方式,第二支撑段包括外杆与内杆,外杆具有中空的结构,内杆设置在外杆的中空结构中并能够顺着外杆移动。内杆外表面与外杆的内表面之间相接触并存在摩擦力,该摩擦力对内杆与外杆之间的相对位置起到了限位作用。当第二支撑段处于伸长或收缩状态时,内杆与外杆的相对位置不会轻易的变化。利用摩擦力对外杆与内杆的相对位置进行限位,进一步减少了伸缩结构的复杂程度,提高了系统的可靠性。
同时,如图16所示,下部角耦合件6002设置有用于容纳纵向支撑杆的容纳槽,纵向支撑杆6104通过该容纳槽连接至下部角耦合件进而与下框架、底架进行连接。纵向支撑杆的容纳槽设置有轴孔(图中未示出),纵向支撑杆通过转动轴与下部角耦合件6002相连接,从而能够围绕转动轴转动,相对于下部角耦合件6002及下框架形成一定的转动角度。下部角耦合件6002用于容纳纵向支撑杆的容纳槽向外开孔,能够限制纵向支撑杆的旋转方向只能向外而不能向内。下部角耦合件6002的纵向支持撑杆容纳槽设置有限位结构6005,限位结构6005设置在容纳槽外部,能够将纵向支撑杆的旋转角度限制在0~30°之间。可选的,在下部角耦合件提供限位的情况下,第二支撑杆的伸缩结构可以不提供卡扣、卡孔等伸缩状态锁定结构,直接利用角耦合件的限位结构进行敞口程度的限位。
作为另一种可选的实施方式,角耦合件的纵向支撑杆容纳槽的限位结构设置在水平方向(图中未示出),用于当纵向支撑杆向外展开直至水平时“托起”纵向支撑杆。在这种情况下,纵向支撑杆旋转的角度可以达到90°,使便携式车辆的侧边框得以完全展开,形成一个较大的载物平台以作为平板车使用。相对应的,第二支撑杆与上部角耦合件可拆卸的连接,当需要将便携式车辆展开时,断开第二支撑杆与上部角耦合件之间的连接,使纵向支撑杆在0°~90°的范围内转动。
可选的,纵向支撑杆包括至少两段的套接的结构,能够上下伸缩以改变便携式车辆的高度,进而增大或者减小便携式车辆框架围成的容纳空间体积。当便携式车辆的纵向支撑杆能够上下伸缩并且第二支撑杆能够伸长或缩短时,便携式车辆的框架同时具备了“敞口”与“长高”的功能,在面对较大体积的承载货物时,增加了便携式车辆能够容纳的物体的尺寸,提高了便携式车辆的可用性。
如图17所示为本发明的又一个实施例。便携式车辆70包括框架组件710,把手组件720,底架组件740,车轮组件750。框架组件710包括上框架以及纵向支撑杆7108,纵向支撑杆与上框架连接。上框架包括长度方向的第一支撑杆以及宽度方向的第二支撑杆。在底架组件740与框架组件710之间设置有下部角耦合件7002,框架组件710通过下部角耦合件7002与底架 组件740连接。
如图18所示为下部角耦合件与纵向支撑杆的装配示意图。下部角耦合件7002设置有多个容纳槽,用于容纳不同的部件。在本实施例中,下部角耦合件7002设置有纵向容纳槽与水平容纳槽,纵向容纳槽用于容纳纵向支撑杆,水平容纳槽用于容纳包括底座杆在内的各水平方向的支撑杆。就容纳纵向支撑杆的纵向容纳槽而言,其形成的空间尺寸大于纵向支撑杆的下端部尺寸,从而能够容纳纵向支撑杆。纵向容纳槽的壁上设置有轴孔,纵向支撑杆的下端部也对应的设置有轴孔7004,纵向支撑杆7108的锁扣轴7110同时穿过容纳槽两侧壁上的轴孔以及纵向支撑杆下端部上设置的轴孔7005,以使纵向支撑杆连接至下部角耦合件7002进而使框架组件、底架组件连接,形成便携式车辆一般状态的容纳空间。在本实施例中,锁扣轴包含一个锁扣部7109,该锁扣部能够使锁扣轴在锁紧状态与松开状态之间切换。具体的,锁扣部端部设置有限位凸块7006,在下部角耦合件7002的对应位置设置有限位凸块7007。当锁扣部处于锁紧状态时,锁扣轴7110在y方向受到限位凸块与限位凹槽之间的限位,无法沿y方向运动,同时,锁扣轴本身被下部角耦合件的轴孔限位,无法在x方向运动。因此,在锁扣处于锁紧状态时,锁扣轴无法相对于下部角耦合件运动。当锁扣处于打开状态时,锁扣轴在y方向的限位被取消,锁扣轴能够沿着y方向运动并从下部角耦合件的轴孔中脱出,此时,纵向支撑杆能够与下部角耦合件脱离,并连同上框架一并脱离。在本实施例中,四个纵向支撑杆的长度一致,当四个纵向支撑杆作为桌腿放置在平面上时,纵向支撑杆能够支撑上框架,并使上框架保持水平。上框架上可以安装平板部7801以形成一个移动桌,该移动桌能够在露营、野餐等户外场合下放置餐具、食物、饮料、桌游等物件,扩展了便携式车辆的应用场景,提高了本发明的便携式车辆的可用性。
本实施例的第一支撑杆的两个支撑段之间的支撑加固件采用栓杆、拴扣的结构,当便携式车辆处于展开状态时,栓杆分别穿过设置在两个相邻的支撑段上的拴扣,使第一支撑杆保持展开的状态并提高第一支撑杆的承重能力。平板部包括设置在平板部下方的两个平板拴扣(图中未示出),当平板部放置在上框架之上时,两个平板拴扣与设置在第二支撑段上的拴扣交错设置并“夹住”设置在第二支撑段上的拴扣,并且两个平板拴扣与第二支撑段上的拴扣的孔相对应,使栓杆能够同时穿过平板拴扣与设置在第二支撑段上的拴扣。此时,由于两个平板拴扣对第二支撑段上拴扣的限位作用,平板部与第一支撑杆之间无法在第一支撑杆的长度方向相对运动。同时,由于栓杆的限位,平板部与第一支撑杆之间也无法沿与第一支撑杆垂直方向相对运动。在这种情况下,平板部与便携式车辆的框架组件之间相互固定,提高了移动桌结构的稳固 性,使移动桌的位置转移更加方便。
作为可选的实施方式,平板部7801底部设置有魔术贴,当平板部放置在上框架之上时,通过魔术贴固定平板部与第一支撑杆和/或第二支撑杆之间的相对位置。作为其他可选的实施方式,平板部与上框架之间的固定还可以采用卡扣连接、螺纹螺钉连接等其他可拆卸的连接方式。
如图19所示,平板部7801包括两个以上的折叠板以及套接在各折叠板上的尼龙布套,尼龙布套根据折叠板的形状、数量形成容纳空间,折叠板放置在容纳空间内。由于尼龙布套质地较软,套接在尼龙布套内的折叠板能够在打开与折叠状态之间切换,当折叠板处于打开状态并放置在上框架之上时,在上框架的支撑下,折叠板能够处于打开状态。
如图20所示,本实施例的平板部7801亦能够设置在底架组件740之上,当平板部设置在底架组件上时,便携式车辆能够作为平板拖车使用,在这种情况下,便携式车辆能够承载具有更大长度、宽度的物件,提高了便携式车辆的载物能力。作为其他扩展的方式,设置在底架组件740上的组件还可以是收纳箱、水箱、移动设备等,进一步扩大了便携式车辆的应用场景。
第四类实施例
如图21所示为本发明前把手的一个实施例的具体结构。把手组件820包括前把手,具体包括握把8201,把手架8202,握把8201安装在把手架8202形成的握把空间内。把手架8202与内杆8203连接。作为可选的实施方式,把手架8202与内杆8203一体成型。外杆8204具有中空结构,套接在内杆8203外部,内杆8203能够沿着外杆8204的中空结构滑动,以实现伸长或收缩。把手组件还包括伸缩按钮8205,在本实施例中,伸缩按钮8205设置在把手架的开口处,且位于握把的末端,将伸缩按钮设置在该位置,能够让操作者在握持把手的时候能够方便的按压开关进行把手的伸缩控制。把手架具有中空结构,其中设置有第一连杆8206与第二连杆8207。其中,第一连杆8206的一端与伸缩按钮8205连接,并能够随着伸缩按钮8205的按压或抬起而共同运动,第一连杆8206的另一端与第二连杆8207转动连接,第一、第二连杆之间能够围绕连接轴而改变相互的角度,第二连杆套接在转轴8208上,并能够绕着转轴8208转动,第二连杆8207的另一端连接至钢丝绳8210,并能够带动钢丝绳8210上下运动,钢丝绳连接至设置在前把手底部的伸缩锁紧机构。伸缩锁紧机构固定至内杆8203,并能够与内杆8203一起沿着中空的外杆运动,外杆8204上沿着竖直方向设置有多个限位孔。
伸缩锁紧机构的结构如图22、23所示,包括第一滑块8213以及第二、第三滑块8214、8215。第一滑块8213与挂钩8212连接(或者两者一体成型),挂钩8212连接至钢丝绳8210。 作为可选的实施方式,钢丝绳直接连接至第一滑块。第一滑块8213能够在钢丝绳8210的拉动下沿着竖直方向上下运动。第二滑块8214、第三滑块8215之间设置有弹性件8216,在本实施例中,弹性件8216为弹簧,更具体的,弹性件8216为压缩弹簧,压缩弹簧具有一定的长度,当向压缩弹簧施加压力时,压缩弹簧向内压缩,产生形变,并产生向外的弹性作用力。弹性件8216设置在第二、第三滑块之间,用于保持第二、第三滑块的距离。第二、第三滑块包括凸起部以及滑动部,凸起部的形状与外杆8204上的限位孔形状相对应,能够卡入限位孔中,起锁定伸缩长度的作用。滑动部设置有三角形状的滑动槽,对应的,第一滑块8213与第二、第三滑块接触的部位设置有三角形状的滑动台。当用户按下伸缩按钮8205时,第一连杆带动第二连杆的末端向上运动,并拉动钢丝绳向上,第一滑块8213在钢丝绳的拉力作用下也向上运动,由于第二、第三滑块的滑动槽与第一滑块的滑动台的限位,第二、第三滑块相互靠近,并使凸起部从外杆8204上的限位孔中缩回,弹性件8216产生弹性形变。此时,内杆8203与外杆8204之间可以相互运动,从而改变把手杆的伸缩长度。当用户松开伸缩按钮8205时,第二、第三滑块在弹性件8216的作用力下恢复远离的状态,并从外杆8204对应的限位孔中冒出,限制内杆、外杆之间的相互运动,使把手保持伸缩的长度。
可选的,设置在握把两边的把手架开口中都设置有伸缩控制按钮,两边的伸缩控制按钮都可以通过两段连杆牵引钢丝绳以实现底部伸缩锁紧机构的控制。采用这样的设计,无论操作者是左手握持握把还是右手握持握把,都能够通过设置在握把8201两端的按钮控制伸缩杆的伸长或者收缩,极大地提高了把手控制的便捷性。
本发明并不限于所示的特定的结构和布置,只要采用了与本发明的类似的技术方案且能够实现类似的效果,都应当认为属于本发明的保护范围。

Claims (12)

  1. 一种能够在展开状态与折叠状态切换的便携式车辆,包括:
    底架组件,用于提供底部支撑;
    框架组件,用于形成所述便携式车辆的容纳空间;
    把手组件,用于向所述底架组件和/或所述框架组件提供驱动力;
    车轮组件,用于支撑所述底架组件和/或所述框架组件,并带动所述底架组件和/或框架组件的移动;
    所述框架组件包括第一支撑杆、第二支撑杆以及纵向支撑杆,所述纵向支撑杆设置在底架组件与所述第一支撑杆、第二支撑杆之间;
    所述第一支撑杆、第二支撑杆与所述纵向支撑杆之间通过上部角耦合件连接;
    所述底架组件与所述纵向支撑杆之间通过下部角耦合件连接;
    所述第一支撑杆包括第一支撑段与第二支撑段,所述第一支撑段通过转动连接件与所述第二支撑段连接;
    所述第一支撑杆上设置有支撑加固件,所述支撑加固件的长度小于第一支撑段的长度;
    所述展开状态下,所述支撑加固件横跨第一支撑段、第二支撑段以限制所述第一支撑段、第二支撑段的相互转动;
    所述折叠状态下,所述支撑加固件被收纳至所述第一支撑段。
  2. 根据权利要求1所述的便携式车辆,其特征在于:
    所述转动连接件为转动轴。
  3. 根据权利要求1所述的便携式车辆,其特征在于:
    所述转动连接件为轴杆,所述轴杆包括设置在轴杆两端的轴孔,所述第一支撑段、第二支撑段分别通过所述轴孔与所述轴杆连接。
  4. 根据权利要求3所述的便携式车辆,其特征在于:
    所述轴杆的长度与所述第一支撑杆长度的比值范围为1/20~1/3。
  5. 根据权利要求4所述的便携式车辆,其特征在于:
    所述轴杆的长度与所述第一支撑杆长度的比值范围为1/5~1/4。
  6. 根据权利要求3~5任意一项所述的便携式车辆,其特征在于:
    所述底架组件包括底座、底座杆,所述底座具有底座延伸部,所述底座杆与所述底座延伸部及下部角耦合件转动连接;
    所述底座杆上设置有支撑连接件;
    所述底架还包括:
    底部支撑装置,包括固定座和牵引件,所述固定座连接至所述底座并能够随底座运动,所述牵引件的一端连接至所述固定座,所述牵引件的另一端连接至所述支撑连接件;
    所述展开状态下,所述牵引件向所述固定座提供第一牵引力;
    所述折叠状态下,所述牵引件向所述固定座提供第二牵引力,所述第二牵引力小于所述第一牵引力。
  7. 根据权利要求6所述的便携式车辆,其特征在于:
    所述固定座与所述底座一体成型。
  8. 根据权利要求6所述的便携式车辆,其特征在于:
    所述第二牵引力等于零。
  9. 根据权利要求1所述的便携式车辆,其特征在于:
    所述支撑加固件为支撑套筒,所述支撑套筒套接在第一支撑杆上并可以沿第一支撑杆滑动;
    所述展开状态时,所述支撑套筒同时套接第一支撑段、第二支撑段的一部分;
    所述折叠状态时,所述支撑套筒套接至所述第一支撑段。
  10. 根据权利要求1所述的便携式车辆,其特征在于:
    所述支撑加固件为限位杆,所述限位杆上设置有限位卡扣,所述限位杆的一端可旋转的安装在第一支撑段上;
    所述第二支撑段上设置有第一固定槽;
    所述展开状态时,所述限位杆的限位卡扣卡接至所述第一固定槽;
    所述折叠状态时,所述限位杆的限位卡扣从所述第一固定槽内脱出。
  11. 据权利要求1所述的便携式车辆,其特征在于:
    所述第二支撑段上还设置有第二固定槽;
    所述折叠状态时,所述限位杆的限位卡扣卡接至所述第二固定槽。
  12. 根据权利要求1所述的便携式车辆,其特征在于:
    所述支撑加固件为栓杆,所述栓杆包括栓舌;
    所述第一支撑段、第二支撑段上设置有凸块,所述凸块能够与所述栓舌配合,起到固定所述栓杆位置的作用;
    所述第一支撑段上设置有至少两个拴扣,所述栓舌设置在所述至少两个拴扣之间;
    所述第二支撑段上设置有至少一个拴扣;
    所述展开状态时,所述栓杆同时穿过第一支撑段上的拴扣与第二支撑段上的拴扣,所述栓舌固定至所述第二支撑段的凸块中;
    所述折叠状态时,所述栓杆同时穿过第一支撑段上的拴扣,所述栓舌固定至所述第一支撑段的凸块中。
PCT/CN2022/133853 2022-09-09 2022-11-24 便携式车辆 WO2024050980A1 (zh)

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