CN112855735B - Anti-floating screw for space station - Google Patents

Anti-floating screw for space station Download PDF

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Publication number
CN112855735B
CN112855735B CN202110106123.3A CN202110106123A CN112855735B CN 112855735 B CN112855735 B CN 112855735B CN 202110106123 A CN202110106123 A CN 202110106123A CN 112855735 B CN112855735 B CN 112855735B
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CN
China
Prior art keywords
screw
special
embedded block
shaped
mounting cavity
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Active
Application number
CN202110106123.3A
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Chinese (zh)
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CN112855735A (en
Inventor
司光耀
齐焕章
黄华政
邬瓦尼
蒋琳
龙怡行
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.)
SICHUAN ACADEMY OF AEROSPACE TECHNOLOGY
Sichuan Aerospace System Engineering Research Institute
Original Assignee
Sichuan Aerospace System Engineering Research Institute
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Priority to CN202110106123.3A priority Critical patent/CN112855735B/en
Publication of CN112855735A publication Critical patent/CN112855735A/en
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Publication of CN112855735B publication Critical patent/CN112855735B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/002—Measures against loss of bolts, nuts or pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0038—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially prismatic with up to six edges, e.g. triangular, square, pentagonal, Allen-type cross-sections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/004—Sealing; Insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/048—Non-releasable devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • F16B2043/008—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts with a cavity for receiving the bolt head in order to make a flush surface

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Remote Sensing (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

The invention discloses an anti-floating screw for a space station, which comprises: the embedded block is arranged at the interface of the inner decoration plate, and a first installation cavity is arranged inside the embedded block; one end of the special-shaped screw is in threaded connection with the first mounting cavity of the embedded block, the other end of the special-shaped screw penetrates through the embedded block and extends out of the interior trim panel, and a second mounting cavity is formed in the special-shaped screw; the opposite vertex rotating sheet is in threaded connection with the first mounting cavity of the embedded block and is attached to the special-shaped screw, and a third mounting cavity is formed in the opposite vertex rotating sheet; the plug cover is in threaded connection with the third mounting cavity of the opposite-top rotating sheet, the plug cover and the second mounting cavity form a containing limiting cavity, and an avoiding opening is formed in the plug cover; the cooperation screw, the nut end setting of cooperation screw is in the second installation intracavity, and the screw end of cooperation screw runs through and extends the special-shaped screw setting, and the nut size of cooperation screw is greater than the size of dodging the mouth.

Description

Anti-floating screw for space station
Technical Field
The invention relates to the technical field of space station structures, in particular to an anti-floating screw for a space station.
Background
The aerospace products are limited by working environment and operating condition, and the connection of all structures must be reliable, so that screw connection is mostly adopted. Two major problems currently exist with this form of connection:
firstly, part of products have the working condition of on-track disassembly, the screws and the gaskets are difficult to fold after being taken down due to the influence of space weightlessness environment, the screws and the gaskets are easy to float in space to become redundant, and the operations of taking and assembling the screws and the gaskets are complicated during secondary assembly. For a structure with a part of multiple connected screws, the conventional method is to use nylon threads to bind specially-made screws, so that the risks of multiple screws being out of control and floating out are reduced, but after the nylon threads are bound, the threads are easily wound at one position, the screws are not easily separated, and the operation difficulty of secondary installation is increased.
Secondly, the large size and the special-shaped structure of many products lead to large span of the interface and distribution on different molded surfaces, which causes high precision requirement on the installation surface during production of the products, high difficulty in process implementation, and simultaneously, the cabin bodies of the space station are easy to deform, the installation surface is difficult to completely attach, and the mechanical property of the products is also influenced while the assembly is difficult.
With the development of aerospace technology in China and the increase of on-orbit operation items of astronauts, the problems of detachment and floating prevention of screws and gaskets and good attachment of mounting surfaces are urgently needed to be solved.
Disclosure of Invention
The invention aims to provide an anti-floating screw for a space station, aiming at solving the technical problem.
In order to achieve the purpose, the invention adopts the following technical scheme:
an anti-drift screw for a space station, comprising: the embedded block is arranged at the interface of the inner decorative plate, and a first installation cavity is arranged inside the embedded block; one end of the special-shaped screw is in threaded connection with the first mounting cavity of the embedded block, the other end of the special-shaped screw penetrates through the embedded block and extends out of the interior trim panel, and a second mounting cavity is formed in the special-shaped screw; the opposite vertex rotating sheet is in threaded connection with the first mounting cavity of the embedded block and is attached to the special-shaped screw, and a third mounting cavity is formed in the opposite vertex rotating sheet; the plug cover is in threaded connection with the third mounting cavity of the opposite-top rotating sheet, the plug cover and the second mounting cavity form a containing limiting cavity, and an avoidance opening is formed in the plug cover; the cooperation screw, the nut end setting of cooperation screw is in the second installation intracavity, and the screw rod end of cooperation screw runs through and extends special-shaped screw setting, and the length of cooperation screw is not less than the height that holds spacing chamber, and the nut size of cooperation screw is greater than the size of dodging the mouth.
Furthermore, the embedded block is fixed at the interface of the interior trim panel through foam rubber.
Furthermore, the outer wall of the special-shaped screw is provided with a step, and the step of the special-shaped screw is clamped at the interface of the interior trim panel.
Further, the plug cover is flush with the opposite-top rotary sheet.
Furthermore, the other end of the special-shaped screw is provided with a groove convenient for the knob to use.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention adopts pure structural components, has simple structure, low cost, convenience and durability;
(2) The invention reduces the processing and mounting difficulty of the product, the mounting surface is easier to be attached, and the mechanical property of the product is ensured;
(3) The invention is convenient for astronauts to disassemble and operate on the track, and solves the problem of float prevention of screws and washers.
Drawings
FIG. 1 is a schematic structural view of an anti-drift screw for a space station according to the present invention;
FIG. 2 is a schematic view of a profiled screw of the floating-prevention screw for a space station of the present invention;
FIG. 3 is a schematic view of the closure of the float screw for a space station of the present invention;
FIG. 4 is a schematic view showing a state where the fitting screw of the float-preventing screw for a space station of the present invention is unscrewed.
The mark in the figure is 1-paper honeycomb core, 2-skin, 3-foaming adhesive, 4-embedded block, 5-special-shaped screw, 6-gasket, 7-matching screw, 8-plug cover, 9-opposite top rotary sheet, 10-interior film, 11-step, 12-groove and 13-avoidance opening.
Detailed Description
The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, other embodiments used by those skilled in the art without any creative effort belong to the protection scope of the present invention.
Example 1:
in order to solve the requirement that the screw of the space station product is prevented from floating on the rail and the installation surface is well matched, the embodiment describes a novel anti-floating screw structure which is applied to the space station interior decorative plate product at present. The function of the interior trim panel is to provide on-track support and in-cabin decoration for astronauts, and certain mechanical property requirements are met on the basis of light weight, so that the honeycomb sandwich structure is used, compared with a metal product, the precision of the structure is not easy to control, and the astronauts have the requirement of detaching the interior trim panel on the track.
As shown in fig. 1, an anti-drift screw for a space station includes: the embedded block 4 is arranged at an interface of the inner decoration plate, and a first installation cavity is arranged inside the embedded block 4; in this embodiment, the main structure of the interior panel is composed of a skin 2 and a paper honeycomb core 1 on both sides, and a pre-buried block 4 is embedded in advance at an interface before the autoclave is molded, and the periphery of the pre-buried block is filled with a foam rubber 3, so that the interior panel is integrally molded. In this embodiment, the embedded block 4 is a circular ring structure, and may be a structure of other shapes as long as there is a through circular inner cavity.
As shown in fig. 2, one end of the special-shaped screw 5 is in threaded connection with the first mounting cavity of the embedded block 4, and the other end of the special-shaped screw 5 penetrates through the embedded block 4 and extends out of the interior trim panel, and a second mounting cavity is formed in the special-shaped screw 5; the outer wall of the special-shaped screw 5 is provided with a step 11, and the step 11 of the special-shaped screw 5 is clamped at the joint of the interior trim panel. The function of limiting during the knob is achieved.
The opposite vertex rotating sheets 9 are in threaded connection with the first installation cavities of the embedded blocks 4, the opposite vertex rotating sheets 9 are attached to the special-shaped screws 5, and third installation cavities are formed in the opposite vertex rotating sheets 9; as shown in fig. 4, the blocking cover 8 is in threaded connection with a third mounting cavity of the opposite-top rotating sheet 9, the blocking cover 8 and the second mounting cavity form an accommodating limiting cavity, and an avoiding opening 13 is formed in the blocking cover 8; the nut end of cooperation screw 7 sets up in the second installation intracavity, and the screw end of cooperation screw 7 runs through and extends special-shaped screw 5 setting, and the length of cooperation screw 7 is not less than the height that holds spacing chamber, and the nut size of cooperation screw 7 is greater than the size of dodging mouth 13.
During subsequent assembly, the special-shaped screw 5 and the opposite-top rotating sheet 9 are respectively matched with the embedded block 4 through threads and are installed in the embedded block 4, the blocking cover 8 is provided with an avoiding opening 13 matched with a general inner hexagonal wrench, and the shape of the avoiding opening 13 is matched with the hexagonal wrench. The size of the avoiding opening 13 is smaller than that of a nut of the matching screw 7, so that the avoiding opening cannot be separated from the nut, a wrench is used for being installed in the opposite rotating sheet 9, the matching screw 7 and a gasket are placed in a formed second installation cavity in advance, and the length of the matching screw 7 is not smaller than the height of the inner cavity. When loosening cooperation screw 7 promptly, cooperation screw 7 can not deviate from the lateral wall of the second installation cavity of special-shaped screw 5 yet, and cooperation screw 7 and gasket can not fall to holding spacing chamber like this, when preventing secondary installation cooperation screw 7 of screwing, do not install well. The opposite-top rotary sheet 9 is equivalent to an opposite-top nut, and can prevent the irregular screw 5 from loosening.
When the interior trim panel is installed, the installation surface of each interface is the surface of the special-shaped screw 5, so that the special-shaped screws 5 can be attached to the cabin body structure more easily, the special-shaped screws 5 can be attached to the cabin body structure to the maximum extent by adjusting the special-shaped screws 5 and the matching screws 7, and the hole site deviation caused by cabin body deformation and machining errors is eliminated.
As shown in fig. 4, when the rail is disassembled, a socket head wrench (the specification of which is smaller than that of the socket head wrench for mounting the block cover 8) required for the matching screw 7 is inserted into the avoiding opening 13 of the block cover 8, the socket head wrench is unlocked and stored in the accommodating limiting cavity, the matching screw 7 cannot freely rock due to the limitation of the special-shaped screw 5, and the gasket 6 cannot be separated.
The installation mode is as follows: carry recess 12 that special-shaped screw 5's knob was used with vice-jaw vice or hand, through screw-thread fit, with special-shaped screw 5 screw in embedded block 4's first installation cavity, and with packing ring 6, the second installation cavity of special-shaped screw 5 is put into to cooperation screw 7, the screw section of cooperation screw 7 stretches out in special-shaped screw 5's the aperture, then will push up the piece 9 and twist in embedded block 4 again, until pushing up special-shaped screw 5, will paint MS slow speed on blanking cover 8 screw at last and prevent the pine and glue, twist in the third installation cavity of pushing up piece 9, blanking cover 8 and pushing up piece 9 are parallel and level mutually, can not bulge. Finally, the interior film 10 is stuck.
And the in-orbit disassembly mode of the interior trim panel is realized by inserting an inner hexagonal wrench into the avoiding opening 13 of the blocking cover 8 and unscrewing the matched screw 7 to finish the disassembly of the interior trim panel.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. The utility model provides a space station is with preventing floating screw which characterized in that includes:
the embedded block (4) is arranged at the interface of the inner decoration plate, and a first installation cavity is arranged inside the embedded block (4);
one end of the special-shaped screw (5) is in threaded connection with the first mounting cavity of the embedded block (4), the other end of the special-shaped screw (5) penetrates through the embedded block (4) and extends out of the interior trim panel, and a second mounting cavity is formed in the special-shaped screw (5);
the opposite vertex rotating sheets (9) are in threaded connection with the first mounting cavities of the embedded blocks (4), the opposite vertex rotating sheets (9) are attached to the special-shaped screws (5), and third mounting cavities are formed in the opposite vertex rotating sheets (9);
the plug cover (8), the plug cover (8) is in threaded connection with a third mounting cavity of the opposite top rotating sheet (9), the plug cover (8) and the second mounting cavity form a containing limiting cavity, and an avoiding opening (13) is formed in the plug cover (8);
the cooperation screw (7), the nut end setting of cooperation screw (7) is in the second installation intracavity, and the screw end of cooperation screw (7) runs through and extends special-shaped screw (5) and sets up, and the length of cooperation screw (7) is not less than the height that holds spacing chamber, and the nut size of cooperation screw (7) is greater than the size of dodging mouth (13).
2. The anti-floating screw for the space station is characterized in that the embedded block (4) is fixed at the interface of the interior trim panel through the foam rubber (3).
3. The anti-drift screw for the space station as claimed in claim 1, wherein the outer wall of the special-shaped screw (5) is provided with a step (11), and the step (11) of the special-shaped screw (5) is clamped at the interface of the interior trim panel.
4. An anti-drift screw for a space station, according to claim 1, characterised in that the cap (8) and the counter-rotating plate (9) are flush.
5. An anti-drift screw for a space station as claimed in claim 1, characterized in that the other end of the profiled screw (5) is provided with a groove (12) for facilitating the turning of a knob.
CN202110106123.3A 2021-01-26 2021-01-26 Anti-floating screw for space station Active CN112855735B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110106123.3A CN112855735B (en) 2021-01-26 2021-01-26 Anti-floating screw for space station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110106123.3A CN112855735B (en) 2021-01-26 2021-01-26 Anti-floating screw for space station

Publications (2)

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CN112855735A CN112855735A (en) 2021-05-28
CN112855735B true CN112855735B (en) 2022-11-18

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* Cited by examiner, † Cited by third party
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CN2443187Y (en) * 2000-10-24 2001-08-15 罗洪泰 Anti-theft nut
JP2006076035A (en) * 2004-09-07 2006-03-23 Nippon Steel Composite Co Ltd Bolt attaching structure of composite panel
CN204458761U (en) * 2014-12-18 2015-07-08 福建鹏坤实业有限公司 A kind of integrated embedded nut of aluminum honeycomb panel
CN204553510U (en) * 2015-04-20 2015-08-12 西安海智机电设备有限公司 A kind of anti-theft screw assembly
CN104864227A (en) * 2015-06-03 2015-08-26 马鞍山聚力科技有限公司 Installation device of solar photovoltaic water pump
CN104943752A (en) * 2014-03-29 2015-09-30 东风扬子江汽车(武汉)有限责任公司 Aluminum alloy honeycomb floor used for bus and installation method thereof
CN105889280A (en) * 2015-01-23 2016-08-24 北京空间技术研制试验中心 Non-disengagement fastening device and method
CN208148291U (en) * 2018-04-18 2018-11-27 长春路通轨道车辆配套装备有限公司 A kind of mold built-in turnbuckle connection structure

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US20040265091A1 (en) * 2003-06-30 2004-12-30 Cheung Kwun-Wing W. Universal bulkhead fitting
US7473489B2 (en) * 2003-09-16 2009-01-06 Okabe Company, Inc. Battery terminal bolt
US10406590B2 (en) * 2014-07-07 2019-09-10 Physical Systems, Inc. Hollow metal screw and method of making
US9976583B2 (en) * 2016-04-04 2018-05-22 The Boeing Company Threaded adjustable-height inserts and related methods
CN211778421U (en) * 2019-12-12 2020-10-27 中国电子科技集团公司第十八研究所 Insulating loose-free combined screw
CN111173825B (en) * 2020-02-08 2021-10-26 新昌县联航机械有限公司 Outer hexagonal screw rod device of aviation anti-disassembly
CN212177616U (en) * 2020-08-28 2020-12-18 天津世纪雷鹏科技有限公司 Hidden screw fastener

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2443187Y (en) * 2000-10-24 2001-08-15 罗洪泰 Anti-theft nut
JP2006076035A (en) * 2004-09-07 2006-03-23 Nippon Steel Composite Co Ltd Bolt attaching structure of composite panel
CN104943752A (en) * 2014-03-29 2015-09-30 东风扬子江汽车(武汉)有限责任公司 Aluminum alloy honeycomb floor used for bus and installation method thereof
CN204458761U (en) * 2014-12-18 2015-07-08 福建鹏坤实业有限公司 A kind of integrated embedded nut of aluminum honeycomb panel
CN105889280A (en) * 2015-01-23 2016-08-24 北京空间技术研制试验中心 Non-disengagement fastening device and method
CN204553510U (en) * 2015-04-20 2015-08-12 西安海智机电设备有限公司 A kind of anti-theft screw assembly
CN104864227A (en) * 2015-06-03 2015-08-26 马鞍山聚力科技有限公司 Installation device of solar photovoltaic water pump
CN208148291U (en) * 2018-04-18 2018-11-27 长春路通轨道车辆配套装备有限公司 A kind of mold built-in turnbuckle connection structure

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Effective date of registration: 20231229

Address after: 610000 R & D building 201, Hangtian North Road Industrial Zone, Longquanyi District, Chengdu City, Sichuan Province

Patentee after: SICHUAN AEROSPACE SYSTEM ENGINEERING INSTITUTE

Patentee after: SICHUAN ACADEMY OF AEROSPACE TECHNOLOGY

Address before: 610000 R & D building 201, Hangtian North Road Industrial Zone, Longquanyi District, Chengdu City, Sichuan Province

Patentee before: SICHUAN AEROSPACE SYSTEM ENGINEERING INSTITUTE