CN112855735A - Anti-floating screw for space station - Google Patents
Anti-floating screw for space station Download PDFInfo
- Publication number
- CN112855735A CN112855735A CN202110106123.3A CN202110106123A CN112855735A CN 112855735 A CN112855735 A CN 112855735A CN 202110106123 A CN202110106123 A CN 202110106123A CN 112855735 A CN112855735 A CN 112855735A
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- China
- Prior art keywords
- screw
- special
- embedded block
- shaped
- mounting cavity
- 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.)
- Granted
Links
- 238000009434 installation Methods 0.000 claims abstract description 20
- 238000005034 decoration Methods 0.000 claims abstract description 5
- 229920001821 foam rubber Polymers 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- 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 rod end of cooperation screw runs through and extends special-shaped screw setting, and the nut size of cooperation screw is greater than the size of dodging the mouth.
Description
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, many products are large in size and have special-shaped structures, so that the span of the interface is large, the interface is distributed on different molded surfaces, the precision requirement on the mounting surface is high during production of the products, the process implementation difficulty is high, meanwhile, the cabin bodies of the space station are easy to deform, the mounting surface is difficult to completely attach, and the mechanical property of the products is 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 fitting 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 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 an accommodating limiting cavity, and an avoidance port 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 joint 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 shaped screw of the float-preventing 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.
Marked in the figure as 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 decorative 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 when a knob is used 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 trimming plate is installed, the installation surface at each interface is the surface of the special-shaped screw 5, so that the interior trimming plate is easier to attach, the special-shaped screw 5 and the cabin body structure can be attached to the maximum extent by adjusting the special-shaped screw 5 and the matching screw 7, and the hole site deviation caused by cabin body deformation and processing 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. An anti-floating screw for a space station, comprising:
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);
cooperation screw (7), the nut end setting of cooperation screw (7) is in the second installation intracavity, and the screw rod 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, characterized in that said closure cap (8) is flush with the counter-rotating plate (9).
5. An anti-drift screw for a space station, according to claim 1, characterized in that the other end of said shaped screw (5) is provided with a groove (12) for facilitating the turning of the knob.
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)
| Publication Number | Publication Date |
|---|---|
| CN112855735A true CN112855735A (en) | 2021-05-28 |
| CN112855735B CN112855735B (en) | 2022-11-18 |
Family
ID=76009383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110106123.3A Active CN112855735B (en) | 2021-01-26 | 2021-01-26 | Anti-floating screw for space station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112855735B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115899048A (en) * | 2022-11-04 | 2023-04-04 | 中国电子科技集团公司第十研究所 | Anti-drift screw assembly for space station |
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2021
- 2021-01-26 CN CN202110106123.3A patent/CN112855735B/en active Active
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| CN2443187Y (en) * | 2000-10-24 | 2001-08-15 | 罗洪泰 | Anti-theft nut |
| US20040265091A1 (en) * | 2003-06-30 | 2004-12-30 | Cheung Kwun-Wing W. | Universal bulkhead fitting |
| US20050058525A1 (en) * | 2003-09-16 | 2005-03-17 | Bakos Peter L. | Battery terminal bolt |
| JP2006076035A (en) * | 2004-09-07 | 2006-03-23 | Nippon Steel Composite Co Ltd | Bolt attaching structure of composite panel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115899048A (en) * | 2022-11-04 | 2023-04-04 | 中国电子科技集团公司第十研究所 | Anti-drift screw assembly for space station |
| CN115899048B (en) * | 2022-11-04 | 2024-05-31 | 中国电子科技集团公司第十研究所 | Space station anti-drifting screw assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112855735B (en) | 2022-11-18 |
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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 |
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