WO2012155422A1 - 一种平衡式行李车 - Google Patents

一种平衡式行李车 Download PDF

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Publication number
WO2012155422A1
WO2012155422A1 PCT/CN2011/079736 CN2011079736W WO2012155422A1 WO 2012155422 A1 WO2012155422 A1 WO 2012155422A1 CN 2011079736 W CN2011079736 W CN 2011079736W WO 2012155422 A1 WO2012155422 A1 WO 2012155422A1
Authority
WO
WIPO (PCT)
Prior art keywords
main frame
frame
wheel
luggage cart
balance type
Prior art date
Application number
PCT/CN2011/079736
Other languages
English (en)
French (fr)
Inventor
李多伦
Original Assignee
浙江泰普森休闲用品有限公司
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.)
Filing date
Publication date
Priority claimed from CN201120158042XU external-priority patent/CN202124051U/zh
Priority claimed from CN2011101284789A external-priority patent/CN102785684A/zh
Application filed by 浙江泰普森休闲用品有限公司 filed Critical 浙江泰普森休闲用品有限公司
Priority to EP11865547.1A priority Critical patent/EP2711263B1/en
Publication of WO2012155422A1 publication Critical patent/WO2012155422A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
    • B62B1/18—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows
    • B62B1/24—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows involving tiltably-mounted containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
    • B62B1/18—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows
    • B62B1/20—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows involving parts being collapsible, attachable, detachable or convertible
    • B62B1/208—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows involving parts being collapsible, attachable, detachable or convertible foldable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2202/00—Indexing codes relating to type or characteristics of transported articles
    • B62B2202/24—Suit-cases, other luggage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/10—Detachable wheels
    • B62B2205/104—Detachable wheel units, e.g. together with the wheel shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
    • B62B2301/14—Wheel arrangements; Steering; Stability; Wheel suspension the wheel arrangement pivoting around a horizontal-longitudinal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B5/00—Accessories or details specially adapted for hand carts
    • B62B5/06—Hand moving equipment, e.g. handle bars
    • B62B5/067—Stowable or retractable handle bars

Definitions

  • the invention relates to the technical field of luggage carts, in particular to a balanced two-wheeled luggage cart.
  • the baggage cart As a kind of human trolley, the baggage cart is widely used in shopping malls, stations, airports, hotels, etc. due to its advantages of simple structure, convenient operation, time and labor saving, and sometimes it can be used to transfer goods.
  • the baggage car According to the form of the wheel structure, the baggage car can be roughly classified into a single-wheeled baggage car, a two-wheeled baggage car, a three-wheeled baggage car, and a four-wheeled baggage car.
  • the conventional single-wheeled baggage car is heavy, the user is more laborious when using it. It is difficult to grasp the balance of the car body, and it is prone to roll or even rollover, and it is not stable enough when parking the loading and unloading items. Rollover due to uneven weight of the contents.
  • the two-wheeled luggage cart has good stability, but because the wheel frame and the main frame are generally fixed directly, the following disadvantages are caused: Since the wheel frame is rigidly connected with the main frame, the wheel The rotating shaft is always parallel to the loading platform of the main frame. When the baggage car is used on a pit and other road surface, the load platform will roll or even roll over with the change of the ground conditions. Smoothness of the platform It is very inconvenient to use. In addition, since the wheel frame is rigidly connected to the main frame, it is impossible to perform detachment, so the package is bulky and inconvenient to transport.
  • the present invention provides a balanced luggage cart including a wheel, a wheel frame and a main frame, the wheel being mounted under the main frame by a wheel frame, an axle assembly and the wheel frame
  • the lower end connection further includes a rotating shaft located at a center of the main frame, and an upper end of the wheel frame is rotatably coupled to the main frame through the rotating shaft.
  • the wheel carrier has an inverted "V" shape, and the upper ends of the left wheel frame and the right wheel frame are provided with bushings on the same axis, and are rotatably connected to the rotating shaft through the bushing.
  • the left wheel frame and the right wheel frame are both in a "U" shape, and the sleeve is located at both ends of its "U” shaped opening.
  • the lower ends of the left and right wheel frames are hinged to the axle assembly.
  • the bottom of the main frame is provided with a positioning sleeve, and one end of the rotating shaft is provided with a positioning head located in the positioning sleeve and is relatively fixed by a fastener.
  • the front side of the main frame is provided with a front stop pipe.
  • the front stop tube is rotatably connected to the main frame, and its deployment angle with respect to the main frame load platform is 90°.
  • the left and right sides of the main frame are respectively provided with a left blocking pipe and a right blocking pipe.
  • the left and right blocking tubes are respectively rotatably connected to the main frame, and the deployment angle of the main frame relative to the main frame is 90°.
  • the rear side of the main frame is provided with a detachable armrest and a folding leg. The invention is further improved on the basis of the prior art, wherein the wheel frame and the main frame are rotatably connected by a rotating shaft, and the main frame can be rotated left and right centering on a rotating shaft located at a central position.
  • the baggage car when the baggage car travels on a conventional level ground, its main frame can be rotated to a position parallel to the axle assembly to maintain the car body in a normal horizontal transport condition; when the baggage car is traveling on a pothole or sloped ground The user can make the two wheels completely contact with the ground through the adjustment function of the rotating shaft, and adjust the main frame to the left and right horizontal state within a certain range. At this time, there is a certain relationship between the loading platform and the axle assembly of the main frame. The angle is adopted to prevent the baggage from rolling or even rolling over. Compared with the traditional baggage car, the use is more stable and labor-saving, and the parking loading and unloading items are more stable, and the side is not affected by the uneven weight. turn.
  • FIG. 1 is a schematic overall structural view of a specific embodiment of a balanced luggage cart according to the present invention
  • FIG. 2 is a schematic structural view of the balanced luggage cart of FIG. 1 when a rotating shaft is withdrawn
  • FIG. 4 is a structural schematic view showing the axle frame of the balanced baggage cart connected to the wheel
  • FIG. 4 is a structural view showing the wheel frame of the balanced baggage cart shown in FIG.
  • FIG. 6 is a structural schematic view of the main frame of the balanced luggage cart of FIG. 1 and related components thereof
  • FIG. 7 is a left retainer and a right retaining pipe of the main frame shown in FIG.
  • FIG. 8 is a schematic structural view of the main frame of FIG.
  • FIG. Figure 9 is a schematic structural view of the main frame of Figure 8 when the legs are in a folded state
  • Figure 10 is a schematic view of the main frame of Figure 9 when the handle is removed
  • Figure 11 is the main car shown in Figure 9 after the handle is removed
  • Figure 12 is a front elevational view of the balanced luggage cart of Figure 1 as it travels over a conventional horizontal road surface
  • Figure 13 is a front elevational view of the balanced luggage cart of Figure 1 as it travels over a pothole road
  • 14 is a front view of the balance type luggage cart shown in FIG. 1 when traveling on the raised road surface
  • FIG. 15 is a front view of the balance type luggage cart shown in FIG. 1 when traveling on the left inclined road surface
  • FIG. 16 is a balanced type shown in FIG. Front view of the baggage car as it travels on a right-sloping road.
  • Figures 1 to 16 is a balanced type shown in FIG. Front view of the baggage car as it travels on a right-sloping road.
  • the core of the present invention is to improve the balance of the wheel carrier and the main frame by adjusting the connection manner between the wheel frame and the main frame.
  • the user can keep the load platform horizontally by operation, thereby stably passing various inclinations. , potholes and pavements.
  • the present invention will be further described in detail below in conjunction with the drawings and embodiments.
  • the terms "upper, lower, front, rear” and the like in the present text are based on the positional relationship of the drawings, and should not be construed as an absolute limitation on the scope of protection. Please refer to FIG. 1.
  • FIG. 1 is a schematic overall structural view of a specific embodiment of a balanced luggage cart according to the present invention.
  • the balance baggage cart provided by the present invention is mainly composed of a wheel 1, an axle assembly 2, a wheel frame 3, a main frame 4 and the like, wherein the wheel 1 is mounted on the main frame through the wheel frame 3 4, the axle assembly 3 is connected to the lower end of the wheel carrier 3, and the center of the main frame 4 is provided with a rotating shaft 5, and the upper end of the wheel frame 3 is rotatably connected to the main frame 4 via the rotating shaft 5.
  • FIG. 2 is a schematic structural view of the balanced luggage cart of FIG. 1 when the rotating shaft is pulled out;
  • FIG. 3 is a structure of the axle assembly of the balanced luggage cart shown in FIG. 4 is a structural schematic view of the wheel carrier of the balanced luggage cart of FIG.
  • FIG. 5 is a structural schematic view of the wheel carrier shown in FIG.
  • the number of the wheels 1 is two, one on each side, and are respectively mounted on both ends of the axle assembly 2, and the axle assembly 2 includes an axle 2-1 and a long sleeve 2-2 fitted on the axle, and both ends of the axle 2-1 Radial through holes are provided, which are positioned by the spacers 6 and the "8" shaped pins 7 inserted into the radial through holes after passing through the center holes of the wheel 1, respectively.
  • the wheel frame 3 has an inverted "V" shape, and the upper end of the left wheel frame and the right wheel frame are provided with a short sleeve 3-1 on the same axis, and are rotatably connected to the rotating shaft 5 through the short sleeve 3-1, left Both the wheel frame and the right wheel frame are in a "U” shape, and the short sleeve 3-1 is located at both ends of its "U” shaped opening, and a support beam 3-2 is provided in the opening, and the connecting piece at the bottom is long with the above
  • the connecting tabs on the sleeve 2-2 are hinged by a pin.
  • the left and right wheel frames can be folded and folded to a nearly flat state, which helps to reduce the transport volume.
  • the left wheel frame and the right wheel frame need to have a certain misalignment relationship in the structure, as shown in FIG. 4 .
  • the bottom of the main frame 4 is provided with a positioning sleeve 4-1 which is square in cross section, and the end of the rotating shaft 5 is provided with a positioning head 5-1 which is square in cross section, and is rotated during assembly.
  • the shaft 5 passes through the positioning sleeve 4-1 and the short sleeve 3-1 in order from the front to the rear to connect the wheel carrier 3 and the main frame 4 together. Finally, the positioning head 5-1 of the front end of the rotating shaft 5 is inserted into the positioning sleeve 4 -1 is relatively fixed by fasteners such as screws and bolts, and the rear end side of the rotating shaft 5 extends into the sleeve fixed at the bottom of the main frame 4.
  • the specific structure of the wheel carrier is not limited herein, and any wheel frame that can be rotatably connected to the main frame through the rotating shaft can be used to achieve the object of the present invention. Please refer to FIG. 6 to FIG. 11 .
  • FIG. 6 Please refer to FIG. 6 to FIG. 11 .
  • FIG. 6 is a schematic structural view of the main frame of the balanced luggage cart of FIG. 1 and related components thereof.
  • FIG. 7 is a left retainer and a right retaining pipe of the main frame shown in FIG. 6 .
  • FIG. 8 is a structural schematic view of the main frame of FIG. 7 when the front frame is in the folded state;
  • FIG. 9 is a structural schematic view of the main frame of FIG. 8 when the legs are in the folded state;
  • FIG. 10 is a schematic structural view of the main frame shown in FIG. 9 when the handle is removed;
  • FIG. 11 is a schematic structural view of the main frame shown in FIG. 9 after the handle is removed.
  • the main frame 3 has a rectangular frame structure, three beams are arranged inside the frame, and a front retaining pipe 8 is arranged on the front side, and the front retaining pipe 8 is rotatably connected with the main frame through the rotating joint 9, which is opposite to The load platform of the main frame 4 can be deployed to 90.
  • the left and right sides of the main frame 3 are respectively provided with a left retaining pipe 10 and a right retaining pipe 11 , and the left retaining pipe 10 and the right retaining pipe 11 are respectively rotatably connected with the main frame 3 via a rotating joint 9 , which is opposite to the main vehicle
  • the carrier platform of the rack 3 can be deployed to 90°.
  • the rear side of the main frame 3 is provided with a detachable armrest 12 and a folding leg 13.
  • the tube at the front end of the armrest 12 is inserted into the tube of the main frame 3 and then fixed by the armrest locking member 12-1; the leg 13 has a telescopic function. After adjustment, it can be fixed by the locking hand wheel 13-1.
  • the bottom of the leg 13 is provided with a universal leg 13-2 to cope with different road conditions.
  • the upper end of the leg 13 passes through the leg rest 13-3 and the main The frame 3 is rotatably connected and can be folded forward.
  • the front retaining pipe 8, the left retaining pipe 10, and the right retaining pipe 11 can be folded and folded over the main frame 3, and the legs 13 can be folded and folded under the main frame 3, and are in a state of being nearly flat, thereby effectively reducing With a small transport volume, the armrest 12 can be completely removed.
  • the above-mentioned balanced luggage cart is only a preferred solution, and the specific structure thereof is not limited thereto, and based on this, a targeted adjustment can be made according to actual needs. Since there are many ways to achieve this, in order to save space, this article will not give an example.
  • the working principle of the above balanced luggage cart is described in detail below: Please refer to FIG. 12 to FIG. 16.
  • FIG. 12 Please refer to FIG. 12 to FIG. 16.
  • FIG. 12 is a front view of the balance type luggage cart of FIG. 1 when traveling on a conventional horizontal road surface
  • FIG. 13 is a front view of the balance type luggage cart shown in FIG.
  • Figure 14 is a front elevational view of the balanced luggage cart of Figure 1 as it travels on a raised road surface
  • Figure 15 is a front elevational view of the balanced luggage cart of Figure 1 as it travels on a left-sloping road surface
  • Figure 16 is a schematic view of Figure 1 A front view showing the balanced baggage car as it travels on a right-sloping road surface.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

一种平衡式行李车，包括车轮、车轮架以及主车架，所述车轮通过车轮架安装于所述主车架下方，其轮轴组件与所述车轮架的下端连接，进一步包括位于所述主车架中央的旋转轴，所述车轮架的上端通过所述旋转轴与所述主车架转动连接。该行李车在通过各种倾斜、坑洼路面时，通过操作可使其载物平台始终保持水平，具有十分可靠的稳定性。

Description

一种平衡式行李车 本申请要求以下中国专利申请的优先权， 其全部内容通过引用结合在 本申请中：
1、 2011年 5月 18日提交中国专利局、 申请号为 201110128478.9、 名 称为"一种平衡式行李车"的专利申请。
2、 2011年 5月 18日提交中国专利局、 申请号为 201120158042.X、 名 称为"一种平衡式行李车"的专利申请。
技术领域
本发明涉及行李车技术领域， 特别是涉及平衡式双轮行李车。
背景技术
行李车作为一种人力手推车， 以其结构筒单、 操作方便、 省时省力等 优点， 被广泛应用于商场、 车站、 机场、 酒店等场合， 有时还可以用来转 运货物。 按照车轮结构形式的不同， 行李车大体上可分为独轮行李车、 双轮行 李车、 三轮行李车、 四轮行李车等几种类型。 常规的单轮行李车在载物较重时， 使用者在使用时比较费力， 很难把 握车体的平衡， 容易发生侧倾甚至侧翻现象， 且在驻车装卸物品时不够平 稳， 也会因装物重量不均而产生侧翻。 相对于单轮行李车来讲， 双轮行李车具有良好的稳定性， 但由于车轮 架与主车架一般都直接固定， 导致其存在以下缺点： 由于车轮架与主车架刚性连接， 因此车轮的转轴始终平行于主车架的 载物平台， 当行李车在斜坡等坑洼路面上使用时， 其载物平台会随着地面 状况的变化发生侧倾甚至侧翻现象， 很难保持行李车载物平台的平稳， 使 用起来很不方便。 此外， 由于车轮架与主车架刚性连接， 无法进行脱卸， 因此包装体积 较大， 不便于运输。 因此， 如何提高双轮行李车在通过斜坡等路面时的稳定性， 是本领域 技术人员目前需要解决的技术问题。 发明内容 本发明的目的是提供一种平衡式行李车。 该行李车在通过各种倾斜、 坑洼路面时， 通过操作可使其载物平台始终保持水平， 具有十分可靠的稳 定性。 为实现上述第一目的， 本发明提供一种平衡式行李车， 包括车轮、 车 轮架以及主车架， 所述车轮通过车轮架安装于所述主车架下方， 其轮轴组 件与所述车轮架的下端连接， 进一步包括位于所述主车架中央的旋转轴， 所述车轮架的上端通过所述旋转轴与所述主车架转动连接。 优选地， 所述车轮架呈倒" V"形， 其左车轮架和右车轮架的上端设有 位于同一轴线上的轴套， 并通过所述轴套与所述旋转轴转动连接。 优选地， 所述左车轮架和右车轮架均呈" U"形， 所述轴套位于其" U"形 开口的两端。 优选地， 所述左车轮架和右车轮架的下端与所述轮轴组件相铰接。 优选地， 所述主车架底部设有定位套， 所述旋转轴的一端设有位于所 述定位套中的定位头并通过紧固件相对固定。 优选地， 所述主车架前侧设有前挡管。 优选地， 所述前挡管与所述主车架转动连接， 其相对于所述主车架载 物平台的展开角度为 90°。 优选地， 所述主车架左、 右两侧分别设有左挡管、 右挡管。 优选地， 所述左挡管、 右挡管分别与所述主车架转动连接， 其相对于 所述主车架载物平台的展开角度为 90°。 优选地， 所述主车架的后侧设有拆卸式扶手和折叠式支腿。 本发明在现有技术的基础上作了进一步改进， 其车轮架与主车架通过 旋转轴转动连接， 主车架能够以位于中央位置的旋转轴为中心左右旋转。 这样， 当行李车在常规水平地面上行进时， 其主车架可转至与轮轴组件平 行的位置， 从而保持车体处于正常的水平运输状态； 当行李车在坑洼或斜 坡地面上行进时， 使用者可以通过旋转轴的调节功能， 使两车轮与地面完 全接触， 并将主车架在一定范围内调节到左右水平状态， 此时主车架的载 物平台与轮轴组件之间具有一定夹角， 从而达到防止行李车侧倾甚至侧翻 的目的， 与传统行李车相比， 其使用更加平稳、 省力， 且驻车装卸物品也 更加稳定， 不会因重物左右不均而发生侧翻。
附图说明 图 1为本发明所提供平衡式行李车的一种具体实施方式的整体结构示 意图； 图 2为图 1所示平衡式行李车在抽出旋转轴时的结构示意图； 图 3为图 1所示平衡式行李车的轮轴组件与车轮相连接的结构示意图； 图 4为图 1所示平衡式行李车的车轮架与轮轴组件相连接的结构示意 图； 图 5为图 4中所示车轮架处于折叠状态时的结构示意图； 图 6为图 1所示平衡式行李车的主车架及其上相关部件的结构示意图； 图 7为图 6所示主车架在左挡管、 右挡管处于收拢状态时的结构示意 图； 图 8为图 7所示主车架在前挡管处于收拢状态时的结构示意图； 图 9为图 8所示主车架在支腿处于收拢状态时的结构示意图； 图 10为拆卸把手时图 9所示主车架的结构示意图； 图 11为拆卸把手后图 9所示主车架的结构示意图； 图 12为图 1所示平衡式行李车在常规水平路面上行进时的正面示意 图； 图 13为图 1所示平衡式行李车在坑洼路面上行进时的正面示意图； 图 14为图 1所示平衡式行李车在隆起路面上行进时的正面示意图； 图 15为图 1所示平衡式行李车在左倾路面上行进时的正面示意图； 图 16为图 1所示平衡式行李车在右倾路面上行进时的正面示意图。 图 1至图 16中：
1.车轮 2.轮轴组件 2-1.轮轴 2-2.长轴套 3.车轮架 3-1.短 轴套 3-2.支撑梁 4.主车架 4-1.定位套 5.旋转轴 5-1.定位头 6.垫片 7.插销 8.前挡管 9.旋转接片 10.左挡管 11.右挡管 12.扶手 12-1.锁紧件 13.支腿 13-1.锁紧手轮 13-2.万向脚板 13-3.脚托
具体实施方式 本发明的核心在于通过改进车轮架与主车架的连接方式使行李车具有 调节平衡的功能， 使用者通过操作可使其载物平台始终保持水平， 从而能 够稳定的通过各种倾斜、 坑洼路面。 为了使本技术领域的人员更好地理解本发明方案， 下面结合附图和具 体实施方式对本发明作进一步的详细说明。 本文中的 "上、下、前、后"等表示方位的用语是基于附图的位置关系， 不应将其理解为对保护范围的绝对限定。 请参考图 1 , 图 1为本发明所提供平衡式行李车的一种具体实施方式 的整体结构示意图。 在一种具体实施方式中， 本发明提供的平衡式行李车， 主要由车轮 1、 轮轴组件 2、 车轮架 3、 主车架 4等部件构成， 其中车轮 1通过车轮架 3 安装于主车架 4下方， 其轮轴组件 3与车轮架 3的下端连接， 主车架 4的 中央设有旋转轴 5 , 车轮架 3的上端通过旋转轴 5与主车架 4转动连接。 请一并参考图 2至图 5 , 图 2为图 1所示平衡式行李车在抽出旋转轴 时的结构示意图； 图 3为图 1所示平衡式行李车的轮轴组件与车轮相连接 的结构示意图； 图 4为图 1所示平衡式行李车的车轮架与轮轴组件相连接 的结构示意图； 图 5为图 4中所示车轮架处于折叠状态时的结构示意图。 车轮 1的数量为两个， 左右各一个， 分别安装于轮轴组件 2的两端， 轮轴组件 2包括轮轴 2-1以及套装在轮轴上的长轴套 2-2,轮轴 2-1的两端 开设有径向通孔， 在分别穿过车轮 1的中心孔后， 通过垫片 6和穿入径向 通孔中的" 8"字形插销 7定位。 车轮架 3 呈倒" V"形， 其左车轮架和右车轮架的上端设有位于同一轴 线上的短轴套 3-1 , 并通过短轴套 3-1与旋转轴 5转动连接， 左车轮架和右 车轮架均呈" U"形， 短轴套 3-1位于其 "U"形开口的两端， 其开口中设有一 道支撑梁 3-2,底部的连接接片与上述长轴套 2-2上的连接接片通过销轴相 铰接。 如此， 在拆卸后， 左车轮架和右车轮架可以折叠收拢至接近平整的 状态， 有助于减小运输体积。 为了保证短轴套 3-1 能够处于同一轴线上， 左车轮架和右车轮架在结 构上需要具有一定的错位关系， 具体如图 4所示。 主车架 4的底部设有定位套 4-1 ,该定位套在横截面上呈正方形，旋转 轴 5 的端部设有在横截面上呈正方形的定位头 5-1 , 在组装时， 旋转轴 5 从前向后依次穿过定位套 4-1、短轴套 3-1将车轮架 3和主车架 4连接在一 起， 最终， 旋转轴 5前端的定位头 5-1套入定位套 4-1中并通过螺釘、 插 销等紧固件相对固定， 而旋转轴 5的后端侧伸入主车架 4底部固定的轴套 中。 本文对车轮架的具体结构不做限定， 凡是能够通过旋转轴与主车架转 动连接的车轮架均可以用来实现本发明目的。 请参考图 6至图 11 , 图 6为图 1所示平衡式行李车的主车架及其上相 关部件的结构示意图； 图 7为图 6所示主车架在左挡管、 右挡管处于收拢 状态时的结构示意图； 图 8为图 7所示主车架在前挡管处于收拢状态时的 结构示意图；图 9为图 8所示主车架在支腿处于收拢状态时的结构示意图； 图 10为拆卸把手时图 9所示主车架的结构示意图； 图 11为拆卸把手后图 9所示主车架的结构示意图。 如图所示， 主车架 3呈矩形框架结构， 其框架内部设有三道横梁， 前 侧设有前挡管 8 , 前挡管 8与主车架通过旋转接片 9转动连接， 其相对于 主车架 4的载物平台能展开至 90。。 主车架 3左、 右两侧分别设有左挡管 10、 右挡管 11 , 左挡管 10和右 挡管 11分别与主车架 3通过旋转接片 9转动连接，其相对于主车架 3的载 物平台能展开至 90°。 主车架 3的后侧设有拆卸式扶手 12和折叠式支腿 13 ,扶手 12前端的 管件插入主车架 3的管件后通过扶手锁紧件 12-1进行固定； 支腿 13具有 伸缩功能， 在调节后可通过锁紧手轮 13-1进行固定， 支腿 13的底部设有 万向脚板 13-2, 以应对不同的路面条件， 支腿 13的上端通过脚托 13-3与 主车架 3转动连接， 可向前折叠。 在拆卸后， 前挡管 8、 左挡管 10、 右挡管 11可以折叠收拢在主车架 3 上方， 支腿 13可以折叠收拢在主车架 3下方， 处于接近平整的状态， 从而 有效减小运输体积， 扶手 12则可以完全拆卸。 当然， 上述平衡式行李车仅是一种优选方案， 其具体结构并不局限于 此， 在此基础上可根据实际需要作出具有针对性的调整。 由于可能实现的 方式较多， 为节约篇幅， 本文就不再一一举例说明。 下面对上述平衡式行李车的工作原理进行详细说明： 请参考图 12至图 16, 图 12为图 1所示平衡式行李车在常规水平路面 上行进时的正面示意图；图 13为图 1所示平衡式行李车在坑洼路面上行进 时的正面示意图；图 14为图 1所示平衡式行李车在隆起路面上行进时的正 面示意图；图 15为图 1所示平衡式行李车在左倾路面上行进时的正面示意 图； 图 16为图 1所示平衡式行李车在右倾路面上行进时的正面示意图。 当行李车在常规水平地面上行进时， 其主车架 4可转至与轮轴组件 2 平行的位置， 从而保持车体处于正常的水平运输状态； 当行李车在坑洼或 斜坡地面上行进时， 使用者可以通过旋转轴 5的调节功能， 使两车轮 1与 地面完全接触， 并将主车架 4在一定范围内调节到左右水平状态， 此时主 车架 4的载物平台与轮轴组件 2之间具有一定夹角， 从而达到防止行李车 侧倾甚至侧翻的目的， 与传统行李车相比， 其使用更加平稳、 省力， 且驻 车装卸物品也更加稳定， 不会因重物左右不均而发生侧翻。 以上对本发明所提供的平衡式行李车进行了详细介绍。 本文中应用了 具体个例对本发明的原理及实施方式进行了阐述， 以上实施例的说明只是 用于帮助理解本发明的核心思想。 应当指出， 对于本技术领域的普通技术 人员来说， 在不脱离本发明原理的前提下， 还可以对本发明进行若干改进 和修饰， 这些改进和修饰也落入本发明权利要求的保护范围内。

Claims

1、 一种平衡式行李车， 包括车轮、 车轮架以及主车架， 所述车轮通过 车轮架安装于所述主车架下方， 其轮轴组件与所述车轮架的下端连接， 其 特征在于， 进一步包括位于所述主车架中央的旋转轴， 所述车轮架的上端 通过所述旋转轴与所述主车架转动连接。
2、根据权利要求 1所述的平衡式行李车， 其特征在于， 所述车轮架呈 倒" V"形， 其左车轮架和右车轮架的上端设有位于同一轴线上的轴套， 并 通过所述轴套与所述旋转轴转动连接。
3、根据权利要求 2所述的平衡式行李车， 其特征在于， 所述左车轮架 和右车轮架均呈" U"形， 所述轴套位于其" U"形开口的两端。
4、根据权利要求 3所述的平衡式行李车， 其特征在于， 所述左车轮架 和右车轮架的下端与所述轮轴组件相铰接。
5、根据权利要求 1至 4任一项所述的平衡式行李车， 其特征在于， 所 述主车架底部设有定位套， 所述旋转轴的一端设有位于所述定位套中的定 位头并通过紧固件相对固定。
6、根据权利要求 1至 4任一项所述的平衡式行李车， 其特征在于， 所 述主车架前侧设有前挡管。
7、根据权利要求 6所述的平衡式行李车， 其特征在于， 所述前挡管与 所述主车架转动连接， 其相对于所述主车架的载物平台的展开角度为 90。。
8、根据权利要求 1至 4任一项所述的平衡式行李车， 其特征在于， 所 述主车架左、 右两侧分别设有左挡管、 右挡管。
9、 根据权利要求 8所述的平衡式行李车， 其特征在于， 所述左挡管、 右挡管分别与所述主车架转动连接， 其相对于所述主车架的载物平台的展 开角度为 90°。
10、 根据权利要求 1至 4任一项所述的平衡式行李车， 其特征在于， 所述主车架的后侧设有拆卸式扶手和折叠式支腿。
PCT/CN2011/079736 2011-05-18 2011-09-16 一种平衡式行李车 WO2012155422A1 (zh)

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