WO2019128822A1 - 一种可折叠展开的空间货架 - Google Patents

一种可折叠展开的空间货架 Download PDF

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Publication number
WO2019128822A1
WO2019128822A1 PCT/CN2018/122220 CN2018122220W WO2019128822A1 WO 2019128822 A1 WO2019128822 A1 WO 2019128822A1 CN 2018122220 W CN2018122220 W CN 2018122220W WO 2019128822 A1 WO2019128822 A1 WO 2019128822A1
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WO
WIPO (PCT)
Prior art keywords
back plate
longitudinal beam
fixing member
pin
locking
Prior art date
Application number
PCT/CN2018/122220
Other languages
English (en)
French (fr)
Inventor
刘金国
陈科利
Original Assignee
中国科学院沈阳自动化研究所
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Publication date
Application filed by 中国科学院沈阳自动化研究所 filed Critical 中国科学院沈阳自动化研究所
Priority to US16/957,721 priority Critical patent/US11008164B2/en
Publication of WO2019128822A1 publication Critical patent/WO2019128822A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B43/00—Cabinets, racks or shelf units, characterised by features enabling folding of the cabinet or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B47/00—Cabinets, racks or shelf units, characterised by features related to dismountability or building-up from elements
    • A47B47/0083—Cabinets, racks or shelf units, characterised by features related to dismountability or building-up from elements with four vertical uprights
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B47/00—Cabinets, racks or shelf units, characterised by features related to dismountability or building-up from elements
    • A47B47/02—Cabinets, racks or shelf units, characterised by features related to dismountability or building-up from elements made of metal only
    • A47B47/021—Racks or shelf units
    • A47B47/028—Racks or shelf units with crossbars
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/02—Shelves
    • A47B96/021—Structural features of shelf bases
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/14—Bars, uprights, struts, or like supports, for cabinets, brackets, or the like
    • A47B96/145—Composite members, i.e. made up of several elements joined together
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
    • A47F5/10—Adjustable or foldable or dismountable display stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G1/00—Storing articles, individually or in orderly arrangement, in warehouses or magazines
    • B65G1/02—Storage devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2207/00—Indexing codes relating to constructional details, configuration and additional features of a handling device, e.g. Conveyors
    • B65G2207/40—Safety features of loads, equipment or persons

Definitions

  • the present invention relates to a space shelf, and more particularly to a space shelf that is foldable and unfolded.
  • space expandable institutions In recent years, in order to meet various civil, military and scientific research needs, space expandable institutions have gradually become the hotspots of research in various countries due to their advantages of small quality, foldability, low production cost and better carrying economy.
  • the space-expandable shelf is folded before the carrying or launching process, and can be unfolded from a small-volume folded state and locked by a locking mechanism to obtain a larger working space, and has wide application prospects in the aerospace field. .
  • the space shelf structure is novel, the folding and unfolding process is easy to implement, the folding state is easy to store and the stability after unfolding is high, and is suitable for the occasions in the aerospace field where the storage property and the folding ratio are relatively high.
  • the invention comprises a lower back plate, an upper back plate, a top cross member, a back plate latch assembly, an upper longitudinal beam, a middle longitudinal beam, a bottom beam, a bottom longitudinal beam and a back plate bottom longitudinal beam, wherein the lower back and the lower back of the upper back plate
  • the upper side of the plate is hinged, one side of the top beam is hinged to the upper side of the upper back plate, and the other side of the top beam is rotatably connected to one side of the upper longitudinal beam; one side and the lower side of the bottom beam
  • the lower side of the back plate is hinged, and the other side of the bottom cross member is rotatably connected to one side of the bottom longitudinal beam, and both ends of the bottom side member are hinged with a middle longitudinal beam; two of the lower side of the lower back plate
  • the back end is respectively hinged with a bottom plate longitudinal beam;
  • the upper back plate is mounted on one side of each beam and the longitudinal beam with a back plate latch assembly for achieving a fixed relative angle between the upper back
  • the backplane latch assembly comprises a latch, a locking spring, a washer and a pin rivet, wherein the upper back plate faces the cross beam and the longitudinal beam respectively, and the plug assembly mounting slot A and the bolt assembly are respectively connected to each other.
  • the slot B one end of the latch is inserted into the latch assembly slot B, and the other end is inserted into the latch assembly slot A.
  • the latch assembly mounting slot B is provided with a locking spring sleeved on the latch.
  • the lower end of the locking spring is provided with a gasket sleeved on the bolt, and the gasket is supported by a bolt rivet disposed on the bolt below, and the two ends of the locking spring are respectively installed with the gasket and the bolt assembly
  • the inner end of the groove B abuts; the lower back plate faces one side of each beam and the longitudinal beam, and a pin hole is opened below the pin assembly groove B, and the pin is inserted into the pin hole in the unfolded state of the space shelf.
  • the latch assembly mounting slot A is divided into a vertical slot and two horizontal slots disposed above and below, the latch is in an inverted "L" shape, and the "L" shaped vertical side is accommodated in the vertical slot and the latch assembly
  • the horizontal edge of the "L” shape is accommodated in the horizontal groove in the folded state of the space shelf, and is accommodated in the horizontal groove in the lower state in the unfolded state of the space shelf;
  • One end is respectively connected with the vertical groove, and the other end of each horizontal groove is provided with an expansion groove for facilitating the pulling of the pin;
  • a top beam fixing member is disposed between the two ends of the top beam and the same end of the upper back plate, and a bottom beam fixing member is disposed between the two ends of the bottom beam and the same end of the lower back plate, and the lower side of the lower back plate is a bottom plate longitudinal member fixing member is disposed between the two ends and the bottom longitudinal beam of the back plate at the same end;
  • Both ends of the top beam fixing member, both ends of the bottom beam fixing member and both ends of the bottom plate longitudinal beam fixing member are connected by a locking pin, and the top beam fixing member, the bottom beam fixing member and the bottom plate of the back plate are longitudinally connected.
  • One end of the beam fixing member is provided with a hole for engaging with the locking pin, and the other end is provided with a "U" shaped opening for engaging with the locking pin;
  • the bottom side rails of the back plates are folded or unfolded along the length direction of the lower back board, and the top cross members and the bottom side rails are folded or unfolded along the height direction of the upper and lower back boards;
  • the two ends of the other side of the upper longitudinal beam are respectively provided with longitudinal beam locking sleeves connected to the central longitudinal beams at both ends, and the longitudinal beam locking sleeves of each end are respectively deployed through the upper end of the sleeve and The lower end fixing members of the sleeve are respectively locked at different positions of the upper longitudinal beam and the middle longitudinal beam at the same end;
  • Each of the upper and lower ends of the outer surface of the longitudinal beam locking sleeve is provided with a locking pin, and the outer surface of the other side of the upper longitudinal beam and the outer surface of the central longitudinal beam of each end are provided with locking pins;
  • the sleeve upper end fixing member and the sleeve lower end fixing member have the same structure, one end is provided with a hole for engaging with the locking pin on the upper longitudinal beam or the middle longitudinal beam, and the other end is provided with the locking member of the longitudinal beam locking sleeve a "U" shaped opening that fits the pin;
  • the top cross member has a "U” shape, and the "U” shaped closed side is hinged to the upper side of the upper back plate;
  • the upper longitudinal beam has an "H” shape, and both ends of the upper side of the "H” shape
  • the two ends of the "U”-shaped top beam opening are respectively rotatably connected by a pin, and the two ends of the lower side of the "H” shape are connected with the longitudinal beam locking sleeve;
  • the bottom beam is "U” shaped
  • the "U” shaped closed side is hinged to the lower side of the lower back panel;
  • the bottom longitudinal beam has a "U” shape, and the ends of the "U” shaped closed side are respectively open to the "U” shaped bottom beam
  • the two ends are connected by a pin, and the central longitudinal beam is hinged at both ends of the closed side of the "U"-shaped bottom stringer.
  • the invention has novel structure, high folding ratio, and can be unfolded from a small volume folded state to obtain a large working space.
  • the invention After the invention is unfolded from the folded state to the working state, it can be locked by a plurality of fixing members and locking pins, thereby ensuring the stability of the unfolded state of the shelf.
  • the invention has a small volume and a regular shape after folding, and is convenient for storage and handling.
  • the invention has lower production cost and emission cost and better economy.
  • Figure 1 is a perspective view showing the three-dimensional structure of the expanded state of the present invention.
  • Figure 2 is a perspective view showing the three-dimensional structure of the folded state of the present invention.
  • FIG. 3 is a schematic structural view of a backplane latch assembly of the present invention.
  • FIG. 4 is a schematic view showing the installation of the backplane latch assembly of the present invention.
  • Figure 5 is a second schematic view showing the installation of the backplane latch assembly of the present invention.
  • Figure 6 is a bottom plan view of the present invention.
  • Figure 7 is a schematic view showing the folding process of the top longitudinal beam and the bottom longitudinal beam of the present invention.
  • Figure 8 is a schematic view showing the folding process of the top beam and the middle stringer of the present invention.
  • Figure 9 is a schematic view showing the folding process of the bottom longitudinal beam of the backboard of the present invention.
  • Figure 10 is a schematic view showing the folding process of the back sheet of the present invention.
  • 1 is the lower back plate
  • 2 is the upper end fixing part of the sleeve
  • 3 is the upper back plate
  • 4 is the top cross beam fixing part
  • 5 is the top cross beam
  • 6 is the hinge
  • 7 is the pin shaft
  • 8 is the back plate bolt assembly
  • 9 is the upper longitudinal beam
  • 10 is the longitudinal beam locking sleeve
  • 11 is the middle longitudinal beam
  • 12 is the bottom beam
  • 13 is the bottom longitudinal beam
  • 14 is the bottom beam fixing member
  • 15 is the sleeve lower end fixing member
  • 16 is the lock Tightening pin
  • 17 is the bottom longitudinal beam of the backing plate
  • 18 is the bolt
  • 19 is the locking spring
  • 20 is the gasket
  • 21 is the bolt rivet
  • 22 is the back plate
  • the bottom rail fixing member 23 is the bolt assembly mounting slot A
  • 24 is
  • the bolt assembly mounting slots B, 25 are pin holes
  • 26 are bumps
  • 27 is an expansion slot.
  • the present invention includes a lower back plate 1, an upper back plate 3, a top cross member 5, a back plate latch assembly 8, an upper longitudinal beam 9, a middle longitudinal beam 11, a bottom cross member 12, a bottom longitudinal beam 13, and The bottom side stringer 17 of the backboard, wherein the lower side of the upper back panel 3 and the upper side of the lower back panel 1 are joined together by four hinges 6, the top cross member 5 being "U” shaped, one side of the top cross member 5 (ie " The U-shaped closed side is connected to the upper side of the upper back plate 3 by four hinges 6; the bottom cross member 12 is in a "U” shape, one side of the bottom cross member 12 (i.e., the "U” shaped closed side) and The underside of the lower backing plate 1 is joined together by four hinges 6.
  • the upper longitudinal beam 9 has an "H" shape, and the left and right ends of the upper side of the "H” shape are respectively rotatably connected to the inner ends of the ends of the opening of the "U"-shaped top cross member 5 through the pin 7.
  • the bottom longitudinal beam 13 has a "U” shape, and the two ends of the "U” shaped closed side are respectively rotatably connected to the inner side of the opening of the "U” shaped bottom cross member 12 through the pin 7 in the "U" shaped bottom longitudinal beam 13
  • the left and right ends of the closed side are respectively hinged with a central longitudinal beam 11 through a hinge 6.
  • the left and right ends of the lower side of the lower back plate 1 are respectively hinged with a back plate bottom rail 17 by a hinge 6, and the back plate bottom rails 17 at the left and right ends are folded or unfolded along the length direction of the lower back plate 1, and the top cross member 5 and the bottom vertical
  • the beam 13 is folded or unfolded in the height direction of the upper and lower back plates 3, 1.
  • the upper back plate 3 is mounted on one side of each of the cross beams and the longitudinal beams with a back plate latch assembly 8 for achieving a fixed angle between the upper back plate 3 and the lower back plate 1.
  • the back plate latch assemblies 8 of the present embodiment are two.
  • a locking pin 16 is disposed on an end surface of the left and right ends of the lower back plate 1 and an end surface of the left and right ends of the bottom beam 12, and a bottom beam fixing member 14 is disposed between the left and right ends of the bottom beam 12 and the same end of the lower back plate 1
  • One end of the bottom cross member fixing member 14 is rotatably coupled to the bottom cross member 12 by a locking pin 16, and after the space shelf is unfolded, the other end of the bottom cross member fixing member 14 passes through the "U" shaped opening and the end surface of the lower back plate 1
  • the locking pins 16 are connected to lock the relative position between the lower backing plate 1 and the bottom cross member 12 after the space shelves are unfolded.
  • a locking pin 16 is disposed on an end surface of the left and right ends of the upper back plate 3 and an end surface of the left and right ends of the top cross member 5, and a top cross member fixing member 4 is disposed between the left and right ends of the top cross member 5 and the same end of the upper back plate 3,
  • One end of the top beam fixing member 4 is rotatably coupled to the upper back plate 3 by a locking pin 16, and after the space shelf is unfolded, the other end of the top beam fixing member 4 passes through the "U" shaped opening and the end face of the top beam 5
  • the locking pins 16 are connected to lock the relative position between the upper backing plate 3 and the top cross member 5 after the space shelves are unfolded.
  • a locking pin 16 is disposed on each of the left and right ends of the lower surface of the outer surface of the lower back plate 1, and a locking pin 16 is also disposed on the bottom longitudinal beam 17 of the back plate at both ends, and the left and right ends of the lower side of the lower back plate 1
  • a backing plate bottom rail fixing member 22 is disposed between the backing plate bottom rails 17 at the same end, and one end of the backing plate side rail fixing member 22 and the locking pin 16 on the backing plate bottom rail 17 are rotatably connected together.
  • the other end of the back panel side rail fixing member 22 is connected to the locking pin 16 on the lower back panel 1 through the "U" shaped opening, thereby realizing the space shelf unfolding, the lower back panel 1 and the back
  • the relative position between the stringers 17 at the bottom of the panel is locked.
  • the top beam fixing member 4, the bottom beam fixing member 14 and the backing plate bottom beam fixing member 22 have the same structure, and each has a circular hole with one end of the locking pin 16, and the other end is provided with the other locking pin 16.
  • the "U" shaped opening is provided.
  • the left and right ends of the other side of the upper longitudinal beam 9 are respectively provided with longitudinal beam locking sleeves 10 connected to the center longitudinal members 11 at the left and right ends.
  • a locking pin 16 is disposed on each of the upper and lower ends of the outer surface of the longitudinal beam locking sleeve 10 at each end, and the outer surface of the left and right ends of the other side of the upper longitudinal beam 9 and the outer surface of the central longitudinal beam 11 of each end are respectively provided.
  • the longitudinal beam locking sleeve 10 at each end is different from the upper longitudinal beam 9 and the central longitudinal beam 11 at the same end by the sleeve upper end fixing member 2 and the sleeve lower end fixing member 15 respectively in the space shelf unfolding state The relative angle of the position is locked.
  • the lower end of each of the central longitudinal members 11 is hinged to the bottom longitudinal member 13 by a hinge 6, and the upper end is for connection with the longitudinal beam locking sleeve 10.
  • the sleeve upper end fixing member 2 and the sleeve lower end fixing member 15 have the same structure, one end is provided with a circular hole which cooperates with the upper longitudinal beam 9 or the locking pin 16 of the middle longitudinal beam 11, and the other end is provided with a longitudinal beam locking sleeve. 10 "U" shaped opening with the locking pin 16 mated.
  • the backplane latch assembly 8 includes a latch 18, a locking spring 19, a spacer 20 and a latch rivet 21.
  • the latch 18 has an inverted “L” shape with a latch rivet 21 mounted thereon, and a bump is provided above the latch rivet 21 26, between the lug 26 and the pin rivet 21 is provided with a locking spring 19 and a gasket 20 which are sleeved on the bolt 18, and the gasket 20 is supported by the lower pin rivet 21, and the locking spring 19 falls on the gasket 20.
  • the upper back plate 3 has a latch assembly mounting slot A23 and a latch assembly mounting slot B24 that communicate with each other on one side of each of the cross beams and the longitudinal beam.
  • the latch assembly mounting slot B24 is located below the latch assembly mounting slot A23, and the latch assembly mounting slot A23 Divided into a vertical groove and two horizontal grooves arranged on the upper and lower sides, the vertical side of the "L" shaped pin 18 is accommodated in the vertical groove and the bolt assembly mounting groove B24, and can be moved up and down in the vertical groove and the bolt assembly mounting groove B24.
  • the lateral edge of the "L"-shaped latch 18 is accommodated in the horizontal groove in the folded state of the space shelf, and is accommodated in the lateral groove located below in the unfolded state of the space shelf.
  • One end of the upper and lower horizontal grooves respectively communicate with the vertical groove, and the other end of each horizontal groove is provided with an expansion groove 27 for facilitating the pulling of the bolt 18.
  • the locking spring 19, the spacer 20 and the latch rivet 21 are all received in the latch assembly mounting slot B24.
  • the block 26 is received in the latch assembly mounting slot A23.
  • the lock spring 19 is in a compressed state in the pin assembly mounting groove B24, and both ends abut against the gasket 20 and the inner tip end of the pin assembly mounting groove B24.
  • the lower back plate 1 faces one side of each of the cross beams and the longitudinal beams, and a pin hole 25 is formed below the pin assembly mounting groove B24.
  • the pin 18 is inserted into the pin hole 25 in the unfolded state of the space shelf, thereby realizing the lower back plate 1 and the upper portion.
  • the relative angle of the back plate 3 is fixed.
  • the working principle of the invention is:
  • the sleeve upper end fixing member 2 and the sleeve lower end fixing member 15 are respectively opened, and the longitudinal beam locking sleeve 10 of the left and right ends is slid upward to the lower end and the upper longitudinal direction.
  • the lower ends of the left and right ends of the other side of the beam 9 are flush and locked by the upper end fixing member 2; the upper longitudinal beam 9 and the bottom longitudinal beam 13 are rotated so as to be perpendicular to the upper back plate 3 and the lower back plate 1, respectively.
  • the horizontal edge of 18 is turned into the horizontal groove located above; the lower back plate 1 is rotated 180 degrees to be fitted with the upper back plate 3, and finally the bottom beam fixing member 14 is opened, and the bottom beam 12 is driven to rotate to make it lower
  • the backboard 1 is parallel, thereby realizing the folding process of the space shelf, the space
  • the unfolding process of the shelf is opposite to the order of operation of the folding process.
  • the invention can be switched from a collapsed state to a expanded cube state and vice versa.
  • the components of the space shelf are connected by a hinge or a pin, and can be locked by the fixing member after being unfolded to ensure stability after the shelf is unfolded.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Assembled Shelves (AREA)

Abstract

一种可折叠展开的空间货架，上部背板（3）的下侧与下部背板（1）的上侧铰接，顶部横梁（5）的一侧与上部背板（3）的上侧铰接，顶部横梁（5）的另一侧与上部纵梁（9）的一侧转动连接；底部横梁（12）的一侧与下部背板（1）的下侧铰接，底部横梁（12）的另一侧与底部纵梁（13）的一侧转动连接，底部纵梁（13）一侧的两端均铰接有中部纵梁（11）；下部背板（1）下侧的两端分别铰接有背板底部纵梁（17）；上部背板（3）朝向各横梁、纵梁的一面上安装有实现上部背板（3）与下部背板（1）相对角度固定的背板插销组件（8）。该可折叠展开的空间货架，折叠展开过程易于实施，折叠状态易于收纳且展开后稳定性较高，适用于航空航天领域中对收纳性及折展比要求较高的场合。

Description

一种可折叠展开的空间货架 技术领域
本发明涉及空间货架，具体地说是一种可折叠展开的空间货架。
背景技术
近年来，为了满足各种民事、军事及科研需要，空间可展开机构由于其具有质量小、可折叠、制作成本低且运载经济性更好等优势逐渐成为各个国家研究的热点。空间可展开货架在运载或发射过程前处于折叠状态，工作时可从较小体积的折叠状态展开并由锁紧机构锁紧，从而获得更大的工作空间，在航空航天领域具有广泛的应用前景。
现有空间货架大多为整体式刚性结构，无法折叠收纳，在运载过程中以及闲置等非工作状态需要占用较大的空间，不便于收纳和搬运。此外，整体式刚性货架由于其存在质量大、制作成本及发射成本较高等缺陷，越来越难以满足未来深空探测发展的需要。
发明内容
针对现有空间货架存在的上述问题，本发明的目的在于提供一种可折叠展开的空间货架。该空间货架结构新颖，折叠展开过程易于实施，折叠状态易于收纳且展开后稳定性较高，适用于航空航天领域中对收纳性及折展比要求较高的场合。
本发明的目的是通过以下技术方案来实现的：
本发明包括下部背板、上部背板、顶部横梁、背板插销组件、上部纵梁、中部纵梁、底部横梁、底部纵梁及背板底部纵梁，其中上部背板的下侧与下部背板的上侧铰接，所述顶部横梁的一侧与该上部背板的上侧铰接，顶部横梁的另一侧与所述上部纵梁的一侧转动连接；所述底部横梁的一侧与下部背板的下侧铰接，底部横梁的另一侧与所述底部纵梁的一侧转动连接，该底部纵梁一侧的两端均铰接有中部纵梁；所述下部背板下侧的两端分别铰接有背板底部纵梁；所述上部背板朝向各横梁、纵梁的一面上安装有实现上部背板与下部背板相对角度固定的背板插销组件；
其中：所述背板插销组件包括插销、锁紧弹簧、垫片及插销铆钉，所述上部背板朝向各横梁、纵梁的一面上分别开有相互连通的插销组件安装槽A和插销组件安装槽B，所述插销的一端插设于插销组件安装槽B内，另一端插设于插销组件安装槽A内，在所述插销组件安装槽B内容置有套设在插销上的锁紧弹簧，该锁紧弹簧的下端设有套在所述插销上的垫片，所述垫片通过下方设置在插销上的插销铆钉支撑，所述锁紧弹簧的两端分别与垫片及插销组件安装槽B内部顶端抵接；所述下部背板朝向各横梁、纵梁的一面上，在所述插销组件安装槽B的下方 开设有插销孔，所述插销在空间货架展开状态插入该插销孔中；
所述插销组件安装槽A分为竖槽及上下设置的两个横槽，所述插销呈倒置的“L”形，该“L”形的竖边容置于所述竖槽及插销组件安装槽B内，该“L”形的横边在空间货架折叠状态容置于位于上方的横槽内、在空间货架展开状态容置于位于下方的横槽内；上下两个所述横槽的一端分别与竖槽相连通，且每个横槽的另一端均设有便于扳动插销的扩展槽；
所述顶部横梁两端与上部背板同端之间设有顶部横梁固定件，所述底部横梁两端与下部背板同端之间设有底部横梁固定件，所述下部背板下侧的两端与同端的背板底部纵梁之间设有背板底部纵梁固定件；
所述顶部横梁固定件的两端、底部横梁固定件的两端及背板底部纵梁固定件的两端均通过锁紧销钉连接，该顶部横梁固定件、底部横梁固定件及背板底部纵梁固定件的一端开有与锁紧销钉配合的孔，另一端设有与锁紧销钉配合的“U”形开口；
两端的所述背板底部纵梁沿下部背板长度方向折叠或展开，所述顶部横梁及底部纵梁沿上、下部背板的高度方向折叠或展开；
所述上部纵梁另一侧的两端分别设有与两端的中部纵梁相连的纵梁锁紧套筒，每端的纵梁锁紧套筒在空间货架展开状态分别通过套筒上端固定件和套筒下端固定件分别与同端的上部纵梁和中部纵梁在不同位置的锁紧；
每端的所述纵梁锁紧套筒外表面的上下两端均设有锁紧销钉，上部纵梁另一侧两端的外表面及每端中部纵梁的外表面上均设有锁紧销钉；所述套筒上端固定件和套筒下端固定件结构相同，一端开有与所述上部纵梁或中部纵梁上锁紧销钉配合的孔，另一端设有与所述纵梁锁紧套筒上锁紧销钉配合的“U”形开口；
所述顶部横梁呈“U”形，该“U”形封闭的一边与所述上部背板的上侧铰接；所述上部纵梁呈“H”形，该“H”形上侧的两端分别与“U”形的顶部横梁开口的两端通过销轴转动连接，该“H”形下侧的两端均连接有所述纵梁锁紧套筒；所述底部横梁呈“U”形，该“U”形封闭的一边与所述下部背板的下侧铰接；所述底部纵梁呈“U”形，该“U”形封闭一边的两端分别与“U”形底部横梁开口的两端通过销轴转动连接，“U”形底部纵梁封闭一边的两端均铰接有中部纵梁。
本发明的优点与积极效果为：
1.本发明结构新颖，具有较高的折展比，可以从一种较小体积的折叠状态展开从而获得较大的工作空间。
2.本发明从折叠状态展开至工作状态之后，可由多个固定件及锁紧销钉锁紧，从而保证货架展开状态的稳定性。
3.本发明折叠之后体积较小且形状规则，便于收纳存储及搬运。
4.本发明与传统整体式刚性货架相比，制作成本及发射成本较低，具有更好的经济性。
附图说明
图1为本发明展开状态的立体结构示意图；
图2为本发明折叠状态的立体结构示意图；
图3为本发明背板插销组件的结构示意图；
图4为本发明背板插销组件的安装示意图之一；
图5为本发明背板插销组件的安装示意图之二；
图6为本发明的底部俯视图；
图7为本发明顶部纵梁、底部纵梁的折叠过程示意图；
图8为本发明顶部横梁、中部纵梁的折叠过程示意图；
图9为本发明背板底部纵梁的折叠过程示意图；
图10为本发明背板的折叠过程示意图。
其中：1为下部背板，2为套筒上端固定件，3为上部背板，4为顶部横梁固定件，5为顶部横梁，6为铰链，7为销轴，8为背板插销组件，9为上部纵梁，10为纵梁锁紧套筒，11为中部纵梁，12为底部横梁，13为底部纵梁，14为底部横梁固定件，15为套筒下端固定件，16为锁紧销钉，17为背板底部纵梁，18为插销，19为锁紧弹簧，20为垫片，21为插销铆钉，22为背板底部纵梁固定件23为插销组件安装槽A，24为插销组件安装槽B，25为插销孔，26为凸块，27为扩展槽。
具体实施方式
下面结合附图对本发明作进一步详述。
如图1～6所示，本发明包括下部背板1、上部背板3、顶部横梁5、背板插销组件8、上部纵梁9、中部纵梁11、底部横梁12、底部纵梁13及背板底部纵梁17，其中上部背板3的下侧和下部背板1的上侧通过四个铰链6连接在一起，顶部横梁5呈“U”形，顶部横梁5的一侧(即“U”形封闭的一边)与上部背板3的上侧通过四个铰链6连接在一起；底部横梁12呈“U”形，底部横梁12的一侧(即“U”形封闭的一边)与下部背板1的下侧通过四个铰链6连接在一起。上部纵梁9呈“H”形，该“H”形上侧的左右两端分别与“U”形的顶部横梁5开口的两端内侧通过销轴7转动连接。底部纵梁13呈“U”形，该“U”形封闭一边的两端分别与“U”形底部横梁12开口的两端内侧通过销轴7转动连接，在“U”形底部纵梁13封闭一边的左右两端分别通过一个铰链6铰接有中部纵梁11。下部背板1下侧的左右两端分别通过一个铰链6铰接有背板底部纵梁17，左右两端的背板底部纵梁17沿下部背板1长度方向折叠或展开，顶部横梁5及底部纵梁13沿上、下部背板3、1的高度方向折叠或展开。上部背板3朝向各横梁、纵梁的一面上安装有实现上部背板3与下部背板1相对角度固定的背板插销组件8，本实施例的背板插销组件8为两个。
下部背板1左右两端的端面上及底部横梁12左右两端的端面上均设有一个锁紧销钉16，底部横梁12左右两端与下部背板1同端之间设有底部横梁固定件 14，底部横梁固定件14一端通过锁紧销钉16可转动地与底部横梁12连接在一起，在空间货架展开之后，底部横梁固定件14的另一端通过“U”形开口与下部背板1端面上的锁紧销钉16连接，从而在空间货架展开后实现下部背板1与底部横梁12之间相对位置的锁紧。上部背板3左右两端的端面上及顶部横梁5左右两端的端面上均设有一个锁紧销钉16，顶部横梁5左右两端与上部背板3同端之间设有顶部横梁固定件4，顶部横梁固定件4一端通过锁紧销钉16可转动地与上部背板3连接在一起，在空间货架展开之后，顶部横梁固定件4的另一端通过“U”形开口与顶部横梁5端面上的锁紧销钉16连接，从而在空间货架展开后实现上部背板3与顶部横梁5之间相对位置的锁紧。下部背板1外表面下侧的左右两端各设有一个锁紧销钉16，两端的背板底部纵梁17上也各设有一个锁紧销钉16，下部背板1下侧的左右两端与同端的背板底部纵梁17之间设有背板底部纵梁固定件22，背板底部纵梁固定件22一端与背板底部纵梁17上的锁紧销钉16可转动地连接在一起，在空间货架展开之后，背板底部纵梁固定件22的另一端通过“U”形开口与下部背板1上的锁紧销钉16连接，从而实现空间货架展开之后，下部背板1与背板底部纵梁17之间相对位置的锁紧。顶部横梁固定件4、底部横梁固定件14及背板底部纵梁固定件22结构相同，均为一端开有与锁紧销钉16配合的圆孔，另一端设有与另一个锁紧销钉16配合的“U”形开口。
上部纵梁9另一侧的左右两端(即“H”形上部纵梁9下侧的左右两端)分别设有与左右两端的中部纵梁11相连的纵梁锁紧套筒10。每端的纵梁锁紧套筒10外表面的上下两端均设有一个锁紧销钉16，上部纵梁9另一侧左右两端的外表面及每端中部纵梁11的外表面上各设有一个锁紧销钉16，每端的纵梁锁紧套筒10在空间货架展开状态分别通过套筒上端固定件2和套筒下端固定件15分别与同端的上部纵梁9和中部纵梁11在不同位置的相对角度的锁紧。每个中部纵梁11的下端均通过一个铰链6与底部纵梁13铰接，上端用于与纵梁锁紧套筒10连接。套筒上端固定件2和套筒下端固定件15结构相同，一端开有与上部纵梁9或中部纵梁11上锁紧销钉16配合的圆孔，另一端设有与纵梁锁紧套筒10上锁紧销钉16配合的“U”形开口。
背板插销组件8包括插销18、锁紧弹簧19、垫片20及插销铆钉21，插销18呈倒置的“L”形，其上安装有插销铆钉21，该插销铆钉21的上方设有凸块26，在凸块26与插销铆钉21之间设有套在插销18上的锁紧弹簧19和垫片20，垫片20通过下方的插销铆钉21支撑，锁紧弹簧19落在垫片20上，避免从插销18上滑落。上部背板3朝向各横梁、纵梁的一面上分别开有相互连通的插销组件安装槽A23和插销组件安装槽B24，插销组件安装槽B24位于插销组件安装槽A23的下方，插销组件安装槽A23分为一个竖槽及上下设置的两个横槽，“L”形插销18的竖边容置于竖槽及插销组件安装槽B24内、并可在竖槽及插销组件安装槽B24内上下移动，“L”形插销18的横边在空间货架折叠状态容置于位于上 方的横槽内、在空间货架展开状态容置于位于下方的横槽内。上下两个横槽的一端分别与竖槽相连通，且每个横槽的另一端均设有便于扳动插销18的扩展槽27。插销18的一端插设于插销组件安装槽B24内，另一端插设于插销组件安装槽A23内，锁紧弹簧19、垫片20及插销铆钉21均容置于插销组件安装槽B24内，凸块26则容置于插销组件安装槽A23内。锁紧弹簧19在插销组件安装槽B24内为压缩状态，两端分别与垫片20及插销组件安装槽B24内部顶端抵接。下部背板1朝向各横梁、纵梁的一面上，在插销组件安装槽B24的下方开设有插销孔25，插销18在空间货架展开状态插入该插销孔25中，从而实现下部背板1和上部背板3相对角度的固定。
本发明的工作原理为：
如图7～10所示，以空间货架折叠过程为例，分别打开套筒上端固定件2和套筒下端固定件15，向上滑动左右两端的纵梁锁紧套筒10至其下端与上部纵梁9另一侧左右两端的下端平齐，并通过套筒上端固定件2锁紧；转动上部纵梁9和底部纵梁13，使之分别于与上部背板3和下部背板1处于垂直状态；打开顶部横梁固定件4，转动上部横梁9和中部纵梁11，使之分别与上部背板3和底部横梁12平行；打开背板底部纵梁固定件22，同时转动背板底部纵梁17使之与下部背板1下侧平行；将背板插销组件8中的“L”形插销18的横边由位于下方的横槽中转出，向上移动插销18，将“L”形插销18的横边转入位于上方的横槽中；转动下部背板1旋转180度使之与上部背板3贴合，最后打开底部横梁固定件14，并驱动底部横梁12旋转，使之与下部背板1平行，从而实现空间货架的折叠过程，空间货架的展开过程与折叠过程操作顺序相反。
本发明能从折叠状态转换至展开后的立方体状态，反之亦然。空间货架各组成部分之间通过铰链或销轴连接，并且在展开之后可由固定件锁紧从而保证货架展开后的稳定性。

Claims (10)

  1. 一种可折叠展开的空间货架，其特征在于：包括下部背板(1)、上部背板(3)、顶部横梁(5)、背板插销组件(8)、上部纵梁(9)、中部纵梁(11)、底部横梁(12)、底部纵梁(13)及背板底部纵梁(17)，其中上部背板(3)的下侧与下部背板(1)的上侧铰接，所述顶部横梁(5)的一侧与该上部背板(3)的上侧铰接，顶部横梁(5)的另一侧与所述上部纵梁(9)的一侧转动连接；所述底部横梁(12)的一侧与下部背板(1)的下侧铰接，底部横梁(12)的另一侧与所述底部纵梁(13)的一侧转动连接，该底部纵梁(13)一侧的两端均铰接有中部纵梁(11)；所述下部背板(1)下侧的两端分别铰接有背板底部纵梁(17)；所述上部背板(3)朝向各横梁、纵梁的一面上安装有实现上部背板(3)与下部背板(1)相对角度固定的背板插销组件(8)。
  2. 根据权利要求1所述可折叠展开的空间货架，其特征在于：所述背板插销组件(8)包括插销(18)、锁紧弹簧(19)、垫片(20)及插销铆钉(21)，所述上部背板(3)朝向各横梁、纵梁的一面上分别开有相互连通的插销组件安装槽A(23)和插销组件安装槽B(24)，所述插销(18)的一端插设于插销组件安装槽B(24)内，另一端插设于插销组件安装槽A(23)内，在所述插销组件安装槽B(24)内容置有套设在插销(18)上的锁紧弹簧(19)，该锁紧弹簧(19)的下端设有套在所述插销(18)上的垫片(20)，所述垫片(20)通过下方设置在插销(18)上的插销铆钉(21)支撑，所述锁紧弹簧(19)的两端分别与垫片(20)及插销组件安装槽B(24)内部顶端抵接；所述下部背板(1)朝向各横梁、纵梁的一面上，在所述插销组件安装槽B(24)的下方开设有插销孔(25)，所述插销(18)在空间货架展开状态插入该插销孔(25)中。
  3. 根据权利要求2所述可折叠展开的空间货架，其特征在于：所述插销组件安装槽A(23)分为竖槽及上下设置的两个横槽，所述插销(18)呈倒置的“L”形，该“L”形的竖边容置于所述竖槽及插销组件安装槽B(24)内，该“L”形的横边在空间货架折叠状态容置于位于上方的横槽内、在空间货架展开状态容置于位于下方的横槽内。
  4. 根据权利要求3所述可折叠展开的空间货架，其特征在于：上下两个所述横槽的一端分别与竖槽相连通，且每个横槽的另一端均设有便于扳动插销(18)的扩展槽(27)。
  5. 根据权利要求1所述可折叠展开的空间货架，其特征在于：所述顶部横梁(5)两端与上部背板(3)同端之间设有顶部横梁固定件(4)，所述底部横梁(12)两端与下部背板(1)同端之间设有底部横梁固定件(14)，所述下部背板(1)下侧的两端与同端的背板底部纵梁(17)之间设有背板底部纵梁固定件(22)。
  6. 根据权利要求5所述可折叠展开的空间货架，其特征在于：所述顶部横 梁固定件(4)的两端、底部横梁固定件(14)的两端及背板底部纵梁固定件(22)的两端均通过锁紧销钉(16)连接，该顶部横梁固定件(4)、底部横梁固定件(14)及背板底部纵梁固定件(22)的一端开有与锁紧销钉(16)配合的孔，另一端设有与锁紧销钉(16)配合的“U”形开口。
  7. 根据权利要求1所述可折叠展开的空间货架，其特征在于：两端的所述背板底部纵梁(17)沿下部背板(1)长度方向折叠或展开，所述顶部横梁(5)及底部纵梁(13)沿上、下部背板(3、1)的高度方向折叠或展开。
  8. 根据权利要求1所述可折叠展开的空间货架，其特征在于：所述上部纵梁(9)另一侧的两端分别设有与两端的中部纵梁(11)相连的纵梁锁紧套筒(10)，每端的纵梁锁紧套筒(10)在空间货架展开状态分别通过套筒上端固定件(2)和套筒下端固定件(15)分别与同端的上部纵梁(9)和中部纵梁(11)在不同位置的锁紧。
  9. 根据权利要求8所述可折叠展开的空间货架，其特征在于：每端的所述纵梁锁紧套筒(10)外表面的上下两端均设有锁紧销钉(16)，上部纵梁(9)另一侧两端的外表面及每端中部纵梁(11)的外表面上均设有锁紧销钉(16)；所述套筒上端固定件(2)和套筒下端固定件(15)结构相同，一端开有与所述上部纵梁(9)或中部纵梁(11)上锁紧销钉(16)配合的孔，另一端设有与所述纵梁锁紧套筒(10)上锁紧销钉(16)配合的“U”形开口。
  10. 根据权利要求8所述可折叠展开的空间货架，其特征在于：所述顶部横梁(5)呈“U”形，该“U”形封闭的一边与所述上部背板(3)的上侧铰接；所述上部纵梁(9)呈“H”形，该“H”形上侧的两端分别与“U”形的顶部横梁(5)开口的两端通过销轴(7)转动连接，该“H”形下侧的两端均连接有所述纵梁锁紧套筒(10)；所述底部横梁(12)呈“U”形，该“U”形封闭的一边与所述下部背板(1)的下侧铰接；所述底部纵梁(13)呈“U”形，该“U”形封闭一边的两端分别与“U”形底部横梁(12)开口的两端通过销轴(7)转动连接，“U”形底部纵梁(13)封闭一边的两端均铰接有中部纵梁(11)。
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