US20140182713A1 - Boom apparatus and concrete pump vehicle having same - Google Patents

Boom apparatus and concrete pump vehicle having same Download PDF

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Publication number
US20140182713A1
US20140182713A1 US14/199,507 US201414199507A US2014182713A1 US 20140182713 A1 US20140182713 A1 US 20140182713A1 US 201414199507 A US201414199507 A US 201414199507A US 2014182713 A1 US2014182713 A1 US 2014182713A1
Authority
US
United States
Prior art keywords
boom
booms
bent
folded
concrete pump
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US14/199,507
Other languages
English (en)
Inventor
Shihui Xie
Biao Deng
Runli Tian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Sany Intelligent Control Equipment Co Ltd
Sany Heavy Industry Co Ltd
Original Assignee
Hunan Sany Intelligent Control Equipment Co Ltd
Sany Heavy Industry Co Ltd
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
Application filed by Hunan Sany Intelligent Control Equipment Co Ltd, Sany Heavy Industry Co Ltd filed Critical Hunan Sany Intelligent Control Equipment Co Ltd
Assigned to SANY HEAVY INDUSTRY CO., LTD, HUNAN SANY INTELLIGENT CONTROL EQUIPMENT CO., LTD reassignment SANY HEAVY INDUSTRY CO., LTD ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DENG, Biao, TIAN, Runli, XIE, SHIHUI
Publication of US20140182713A1 publication Critical patent/US20140182713A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6851—With casing, support, protector or static constructional installations
    • Y10T137/6855—Vehicle
    • Y10T137/6881—Automotive
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/8807—Articulated or swinging flow conduit

Definitions

  • the invention relates generally to the field of construction machinery, and more particularly to a boom apparatus, and a concrete pump vehicle having the boom apparatus.
  • a concrete pump vehicle is equipment that delivers concrete along a pipeline to a location required by construction works.
  • the concrete pump vehicle needs to deliver concrete to a specified location through a delivery pipe fixed on a boom apparatus.
  • the boom apparatus needs to drive the delivery pipe to perform actions such as unfolding, folding, and rotating.
  • the boom apparatus of a concrete pump vehicle includes multiple booms. The multiple booms may be foldable.
  • Folding of the boom currently used by a concrete pump vehicle mainly include an R type, a Z type, and an RZ type.
  • the R type of folding can fully take advantage of the space in the vertical direction of the concrete pump vehicle.
  • the Z type of folding can enable the boom apparatus to unfold in a small space.
  • the RZ type of folding is often used.
  • the first boom of the boom apparatus is hinge-connected to a turntable.
  • the first boom, the second boom, and the third boom are folded to form an R-shaped boom; and the fourth boom and following boom sections are folded to form a Z-shaped boom.
  • a first objective of the invention is to provide a boom apparatus.
  • the boom apparatus can arrange multiple booms in an effective folding space.
  • a second objective of the invention is to provide a concrete pump vehicle including the boom apparatus.
  • a boom apparatus includes at least three booms, e.g., a first boom, a second boom and a third boom, sequentially connected to one another.
  • a root end of the first boom is connected to a turntable.
  • Some of the booms are a bent boom occupying at least two column spaces. When the booms are in a folded state, the boom apparatus occupies at least three column spaces.
  • the first boom occupies a column space.
  • the other columns of the boom apparatus are located on the same side of a space occupied by the first boom.
  • the first boom is a bent boom, bending directions of bent segments of the first boom are the same.
  • the other columns of the boom apparatus are all distributed on the same side of a bending direction of the first boom.
  • the first boom is a bent boom
  • a root end straight boom segment of the first boom connected to the turntable occupies a column space.
  • the other columns of the boom apparatus are located on two sides of a space occupied by the root end straight boom segment of the first boom.
  • the boom apparatus further includes at least a fourth booms, where each of the third boom and the fourth boom are a bent boom.
  • each of the third boom and the fourth boom are a bent boom.
  • the boom apparatus further includes at least a fifth boom, where the second boom, the third boom, and the fourth boom are folded into an inverse-Z-shaped boom unit, and the third boom, the fourth boom, and the fifth boom are folded into an inverse-R-shape.
  • the boom apparatus further includes at least a sixth boom, where the fourth boom, the fifth boom, and the sixth boom form a Z-shape.
  • the boom apparatus further includes at least a sixth boom, where the fourth boom, the fifth boom, and the sixth boom form an R-shape.
  • a concrete pump vehicle in another aspect of the invention, includes a chassis and a boom apparatus disposed on the chassis.
  • the boom apparatus is of any one of the aforementioned boom apparatus. Since the aforementioned boom apparatus has the aforementioned technical effects, the concrete pump vehicle having the boom apparatus should also have corresponding technical effects.
  • the boom apparatus includes at least three sequentially connected booms, where a root end of the first boom is connected to a turntable, some of the booms are a bent boom occupying at least two column spaces, and when the booms are in the folded state, the boom apparatus occupies at least three column spaces.
  • the boom apparatus When folded, the boom apparatus can be folded into at least three columns in parallel to be arranged on the concrete pump vehicle, so as to optimize arrangement of the boom sections, decrease a boom folding height of the concrete pump vehicle with multiple boom sections; compared with the prior art, with the total length of the whole boom apparatus remaining unchanged, the number of booms can be increased in a limited space, and the length of the single boom can be decreased, so as to decrease the overall length of the vehicle, and effectively decrease a minimal unfolding height of the boom apparatus, thereby facilitating smooth unfolding of the boom apparatus.
  • the first boom is a bent boom
  • a root end straight boom segment of the first boom connected to the turntable occupies a column space
  • the other columns of the boom apparatus are located on two sides of a space occupied by the root end straight boom segment of the first boom.
  • the arrangement manner can fully take advantage of spaces on two sides of the first boom, that is, fully take advantage of the space in a width direction of the vehicle body, so as to facilitate compact arrangement of adjacent column booms, thereby increasing the utilization rate of the transverse space of the vehicle, and facilitating arrangement of more column booms.
  • the boom apparatus includes at least four booms, where each of the third boom and the fourth boom are a bent boom; when the booms are in the folded state, bending directions of bent segments of the first boom and the third boom are opposite to each other, bending directions of bent segments of the first boom and the fourth boom are the same, and the first boom, the second boom, and the third boom are folded into an R-shape.
  • the length of the corresponding boom can be increased by reasonably setting positions of the bent segments of the first boom and the third boom and a column position where a telescopic cylinder is.
  • FIG. 1 is a schematic structural view of a boom apparatus according to one embodiment of the invention.
  • FIG. 2 is a front view of the boom apparatus shown in FIG. 1 .
  • FIG. 3 is a schematic structural view showing that first three booms of the boom apparatus shown in FIG. 1 are folded.
  • FIG. 4 is a front view of the boom apparatus shown in FIG. 3 .
  • FIG. 5 is a schematic structural view showing that first three booms of the boom apparatus shown in FIG. 3 are unfolded.
  • FIG. 6 is a schematic structural view showing that the second boom, the third boom, and the fourth boom of the boom apparatus shown in FIG. 1 are folded.
  • FIG. 7 is a schematic structural view showing that the second boom, the third boom, and the fourth boom shown in FIG. 6 are unfolded.
  • FIG. 8 is a schematic structural view showing that the third boom, the fourth boom, and the fifth boom of the boom apparatus shown in FIG. 1 are folded.
  • FIG. 9 is a schematic structural view showing that the third boom, the fourth boom, and the fifth boom shown in FIG. 8 are unfolded.
  • FIG. 10 is a schematic structural view showing that a fourth boom, the fifth boom, and the sixth boom of the boom apparatus shown in FIG. 1 are folded.
  • FIG. 11 is a schematic structural view showing that the fourth boom, the fifth boom, and the sixth boom shown in FIG. 10 are unfolded.
  • FIG. 12 is a schematic structural view showing that booms of the boom apparatus shown in FIG. 1 are unfolded.
  • the term “and/or” includes any and all combinations of one or more of the associated listed items. It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the invention.
  • relative terms such as “lower” or “bottom”, “upper” or “top,” and “front” or “back” may be used herein to describe one element's relationship to another element as illustrated in the Figures. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the Figures. For example, if the device in one of the figures is turned over, elements described as being on the “lower” side of other elements would then be oriented on “upper” sides of the other elements. The exemplary term “lower”, can therefore, encompasses both an orientation of “lower” and “upper,” depending of the particular orientation of the figure.
  • “around”, “about” or “approximately” shall generally mean within 20 percent, preferably within 10 percent, and more preferably within 5 percent of a given value or range. Numerical quantities given herein are approximate, meaning that the term “around”, “about” or “approximately” can be inferred if not expressly stated.
  • this invention in one aspect, relates to a boom apparatus, and a concrete pump vehicle having the boom apparatus.
  • FIG. 1 is a schematic structural view of a specific embodiment of a boom apparatus according to the invention
  • FIG. 2 is a front view of the boom apparatus shown in FIG. 1 .
  • the boom apparatus includes at least three sequentially connected booms.
  • a root end of the first boom 1 is connected to a turntable.
  • a telescopic cylinder is generally disposed between adjacent booms of the boom apparatus, one end of the telescopic cylinder is hinge-connected to a preceding boom, the other end of the telescopic cylinder is hinge-connected to a following boom, and the telescopic cylinder is used to drive the following boom to perform an unfolding or folding action.
  • the root end of the first boom 1 is hinge-connected to the turntable, and among two adjacent booms, the boom closer to the turntable is defined as the preceding boom, and the other boom is defined as the following boom.
  • Some booms of the boom apparatus are a bent boom occupying at least two column spaces. When the booms are in the folded state, the boom apparatus occupies at least three column spaces.
  • the boom apparatus When folded, the boom apparatus can be folded into at least three columns in parallel to be arranged on the concrete pump vehicle, so as to optimize arrangement of the boom sections, decrease a boom folding height of the concrete pump vehicle with multiple boom sections, and fully take advantage of a transverse space of a vehicle body.
  • the number of booms can be increased in a limited vertical space, the length of the single boom can be decreased, the overall length of the vehicle can be decreased, and a minimal unfolding height of the boom apparatus can be effectively decreased, thereby facilitating smooth unfolding of the boom apparatus.
  • the boom apparatus when folded, can be folded into at least three columns in parallel to be arranged on the concrete pump vehicle, so as to facilitate increase of the number of booms, thereby increasing the total length of the whole boom apparatus, and increasing a delivery height of the concrete pump vehicle.
  • the first boom may occupy a column space.
  • the other columns of the boom apparatus are located on the same side of the space occupied by the first boom.
  • the structure of the boom of the arrangement manner is simple, thereby facilitating reduction in machining of the boom.
  • the weight of the first boom 1 namely the basic boom, is the heaviest, so that the telescopic cylinder for raising the first boom 1 is correspondingly larger in size and heavier in weight, and occupies a larger space. Therefore, the first boom 1 may be set to be a bent boom.
  • the first boom 1 is set to be a bent boom occupying at least two column spaces. It is arranged that bending directions of bent segments 12 of the first boom 1 are the same. When the booms are in the folded state, the other columns of the boom apparatus are all distributed on the same side of the bending direction of the first boom 1 . In this way, for the boom apparatus having multiple booms, the telescopic cylinder occupying a larger space may be arranged below the first boom, so as to implement arrangement of multiple booms.
  • the first boom 1 is set to be a bent boom.
  • the root end straight boom segment 11 of the first boom 1 connected to the turntable occupies a column space.
  • the other columns of the boom apparatus are located on two sides of the space occupied by the root end straight boom segment 11 of the first boom 1 .
  • Such an arrangement can fully take advantage of spaces on two sides of the first boom 1 , that is, fully take advantage of the space in a width direction of the vehicle body, so as to facilitate compact arrangement of adjacent column booms, thereby increasing the utilization rate of the transverse space of the vehicle, and facilitating arrangement of more column booms.
  • the boom apparatus may include at least four booms.
  • the third boom 3 and the fourth boom 4 may both be designed to be bent booms; and when the booms are in the folded state, bending directions of bent segments of the first boom 1 and the third boom 3 are opposite to each other, bending directions of bent segments of the first boom 1 and the fourth boom 4 are the same, and the first boom 1 , the second boom 2 , and the third boom 3 are folded into an R-shape. In this way, some straight boom segments of the third boom 3 and the fourth boom 4 are located on two sides of the space occupied by the root end straight boom segment 11 of the first boom 1 .
  • the aforementioned setting manner can increase the length of the corresponding boom by reasonably setting positions of the bent segments of the first boom 1 and the third boom 3 and the column position where the telescopic cylinder is.
  • the setting in this embodiment can effectively increase the length of the second boom 2 and the third boom 3 , thereby facilitating increase of the overall boom length of the boom apparatus.
  • the first boom 1 is a bent boom, and as shown in FIG. 1 , the first boom 1 occupies at least two column spaces.
  • the first boom 1 may include several straight boom segments not in a same straight line, the straight boom segment connected to the turntable is called the root end straight boom segment 11 , which occupies a column space, and another straight boom segment connected to the root end straight boom segment 11 by the bent segment 12 occupies another column space. Therefore, a bent boom including a bent segment occupies two column spaces.
  • the boom apparatus may include at least five booms, where the second boom 2 , the third boom 3 , and the fourth boom 4 are folded into an inverse-Z-shaped boom unit, and the third boom 3 , the fourth boom 4 , and a fifth boom 5 are folded into an inverse-R-shaped boom unit.
  • the details of folding of the first three booms are referred to FIGS. 3 and 4 .
  • the second boom 2 , the third boom 3 , and the fourth boom 4 are folded into the inverse-Z-shaped boom unit.
  • FIG. 8 the third boom 3 , the fourth boom 4 , and the fifth boom 5 are folded into the inverse-R-shaped boom unit.
  • FIGS. 5 , 7 and 9 show directions of relative movement during unfolding of the booms: V1 represents counterclockwise rotation, and V2 represents clockwise rotation.
  • the setting manner fully takes advantage of the transverse space of the concrete pump vehicle, facilitates arrangement of more than six booms, and can increase the length of following booms such as the sixth boom, so that the overall height is low, and the steadiness of the vehicle is high.
  • each boom is located on an upper side or a lower side of the preceding boom, so that the gap between adjacent booms can be effectively reduced, and the boom apparatus can be smoothly unfolded in a narrow space.
  • a boom is located between two adjacent preceding booms, and the booms, which are in the Z-shaped boom and follow the third boom 3 (also include the third boom 3 ), are disposed between the two adjacent preceding booms of the boom, so as to fully take advantage of the gap between the two preceding booms, so that with the total length of the whole boom apparatus remaining unchanged, the number of booms in the limited vertical space can be increased, so as to decrease the length of the single boom, and when the lengths of the booms except the first boom 1 are substantially the same, the minimal unfolding height of the boom apparatus can be effectively decreased, so as to smoothly unfold the boom apparatus in a narrow space.
  • FIGS. 10-12 for the details of a manner in which the sixth boom is arranged on the boom apparatus.
  • the boom apparatus may include a sixth boom 6 , such that the fourth boom 4 , the fifth boom 5 , and the sixth boom 6 form a Z-shaped boom unit, so as to arrange as many as possible booms in the effective space.
  • the boom apparatus may include at least six booms.
  • the first boom 1 , the second boom 2 , and the third boom 3 are folded into an R-shaped boom unit.
  • the second boom 2 , the third boom 3 , and the fourth boom 4 are folded into an inverse-Z-shaped boom unit.
  • the third boom 3 , the fourth boom 4 , and the fifth boom 5 are folded into an R-shaped boom unit.
  • the fourth boom 4 , the fifth boom 5 , and the sixth boom 6 are folded into an R-shape.
  • the boom apparatus includes at least six booms; the fourth boom 4 and the fifth boom 5 may each be a bent boom.
  • the first boom 1 , the second boom 2 , and the third boom 3 are folded into a Z-shaped boom unit.
  • the third boom 3 , the fourth boom 4 , and the fifth boom 5 are folded into an inverse-Z-shaped boom unit.
  • the fourth boom 4 , the fifth boom 5 , and the sixth boom 6 are folded into an R-shaped boom unit; this manner further increases the number of boom columns, and fully takes advantage of the transverse space of the vehicle.
  • the boom apparatus may include at least five booms.
  • the first boom 1 , the third boom 3 , and the fifth boom 5 each are a bent boom.
  • the first boom 1 , the second boom 2 , and the third boom 3 are folded into an R-shape. Bending directions of a bent segment of the first boom 1 and a bent segment of the third boom 3 are opposite to each other, and bending directions of the bent segment of the first boom 1 and a bent segment of the fifth boom 5 are the same.
  • any three sequentially connected booms are folded into an R-shape; the folding manner is compact, and improves steadiness of the vehicle.
  • the sixth boom 6 may also be set as a bent boom, a seventh boom may be further added on an outer side of the sixth boom 6 , and the seventh boom may be disposed on an upper side or a lower side of the sixth boom 6 .
  • the invention further provides a concrete pump vehicle that includes a chassis and a boom apparatus disposed on the chassis.
  • the boom apparatus is the boom apparatus in any one of the aforementioned embodiments.
  • the concrete pump vehicle has the aforementioned boom apparatus, and since the aforementioned boom apparatus has the aforementioned technical effects, the concrete pump vehicle having the boom apparatus should also have corresponding technical effects.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
US14/199,507 2011-10-24 2014-03-06 Boom apparatus and concrete pump vehicle having same Abandoned US20140182713A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201110322355.9 2011-10-24
CN2011103223559A CN102409857B (zh) 2011-10-24 2011-10-24 一种臂架装置及混凝土泵车
PCT/CN2012/074036 WO2013060124A1 (zh) 2011-10-24 2012-04-14 一种臂架装置及混凝土泵车

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/074036 Continuation WO2013060124A1 (zh) 2011-10-24 2012-04-14 一种臂架装置及混凝土泵车

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US20140182713A1 true US20140182713A1 (en) 2014-07-03

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US14/199,507 Abandoned US20140182713A1 (en) 2011-10-24 2014-03-06 Boom apparatus and concrete pump vehicle having same

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Country Link
US (1) US20140182713A1 (ru)
EP (1) EP2772600A4 (ru)
CN (1) CN102409857B (ru)
BR (1) BR112014009171A8 (ru)
RU (1) RU2014116584A (ru)
WO (1) WO2013060124A1 (ru)

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US20150008702A1 (en) * 2011-12-13 2015-01-08 Hunan Zoomlion Intelligent Technology, Inc. Boom of concrete pump truck and concrete pump truck
CN115142680A (zh) * 2021-03-31 2022-10-04 三一汽车制造有限公司 工程机械
CN115142678A (zh) * 2021-03-31 2022-10-04 三一汽车制造有限公司 臂架装置及工程机械

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CN102650166A (zh) * 2012-04-19 2012-08-29 三一重工股份有限公司 臂架装置及工程机械
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CN114517580B (zh) * 2020-11-20 2024-03-08 三一汽车制造有限公司 臂架装置及作业车辆
CN118110346B (zh) * 2024-03-04 2024-08-13 四川能投建工集团有限公司 一种混凝土浇筑布料机

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150008702A1 (en) * 2011-12-13 2015-01-08 Hunan Zoomlion Intelligent Technology, Inc. Boom of concrete pump truck and concrete pump truck
CN115142680A (zh) * 2021-03-31 2022-10-04 三一汽车制造有限公司 工程机械
CN115142678A (zh) * 2021-03-31 2022-10-04 三一汽车制造有限公司 臂架装置及工程机械

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RU2014116584A (ru) 2015-12-10
EP2772600A4 (en) 2015-05-27
BR112014009171A8 (pt) 2017-06-20
CN102409857A (zh) 2012-04-11
CN102409857B (zh) 2013-11-20
BR112014009171A2 (pt) 2017-06-13
EP2772600A1 (en) 2014-09-03
WO2013060124A1 (zh) 2013-05-02

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