CN109083907B - Plug-pull locking space folding and unfolding mechanism - Google Patents
Plug-pull locking space folding and unfolding mechanism Download PDFInfo
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- CN109083907B CN109083907B CN201811123936.8A CN201811123936A CN109083907B CN 109083907 B CN109083907 B CN 109083907B CN 201811123936 A CN201811123936 A CN 201811123936A CN 109083907 B CN109083907 B CN 109083907B
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- rocker arm
- transverse cylinder
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- 230000007246 mechanism Effects 0.000 title claims abstract description 16
- 230000000903 blocking effect Effects 0.000 claims abstract description 36
- 238000007906 compression Methods 0.000 claims abstract description 22
- 230000006835 compression Effects 0.000 claims abstract description 21
- 238000000926 separation method Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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Classifications
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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
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/12—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with locking-pins or split-pins thrust into holes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention relates to the technical field of aerospace equipment, and discloses a plug-pull locking space folding-unfolding mechanism which comprises a transverse cylinder with one closed end and an anti-falling sleeve sleeved on the non-closed end of the transverse cylinder, wherein a slide way is arranged in the anti-falling sleeve, a rocker arm and a sliding blocking cylinder are axially and sequentially arranged in the slide way, the rocker arm penetrates through the anti-falling sleeve and is rotatably connected with one end of the sliding blocking cylinder through a pin shaft, a sliding boss is arranged at the other end of the sliding blocking cylinder, the sliding boss is slidably connected with the transverse cylinder, and a compression spring is arranged between the sliding boss and the anti-falling sleeve. The folding and unfolding device is light in weight, small in size, simple and convenient to operate, convenient to fold and unfold, meanwhile, free of relative rotation, stable in connection, very suitable for being used in a low-gravity environment, and well meets the requirement for use in a space station.
Description
Technical Field
The invention relates to the technical field of space equipment, in particular to a plug-pull locking space folding and unfolding mechanism.
Background
In the aerospace field, due to the limitations of rocket carrying capacity, space environment and space size, the space folding and unfolding function is often required on the premise of meeting the requirements of light weight, small volume and reliable structure, and meanwhile, in order to facilitate the use of astronauts, the product is required to be operated through simple actions as far as possible.
The on-orbit state of a lot of products in the current space station can not meet the ascending mechanical requirement, so the products are usually disassembled on the ground during design, and ascend in a binding and packaging manner, and are assembled on the orbit by astronauts after the orbit. This approach creates a significant amount of work for the astronaut, while also taking into account the storage of the connecting parts and the removal tool. Compared with the prior art, the product with space folding and unfolding capacity can move upwards in a folding state, the mechanical property of the product meets the ascending requirement in a binding or screw reinforcing mode, and the constraint is removed after the product is guided to be unfolded into a working state. The mode does not need astronauts to carry out on-orbit assembly, and the workload is greatly reduced.
With the development of aerospace technology in China, the requirements of a single space station on simple operation and space folding and unfolding are higher and higher at present. The folding and unfolding mechanism usually adopted on the ground has the problems of heavy weight, large occupied space, complex operation or unsuitability for use in a low-gravity environment and the like, and can not meet the requirements of a space station.
Disclosure of Invention
The invention aims to provide a plug-pull locking space folding and unfolding mechanism which well solves the problems, is light in weight, small in size, simple and convenient to operate, convenient to fold and unfold, free of relative rotation, stable in connection, very suitable for being used in a low-gravity environment and well meets the requirement for use in a space station.
The technical scheme is that the plug-pull locking space folding-unfolding mechanism comprises a transverse cylinder with one closed end and an anti-falling sleeve sleeved on the non-closed end of the transverse cylinder, a slide way is arranged in the anti-falling sleeve, a rocker arm and a sliding blocking cylinder are axially and sequentially arranged in the slide way, the rocker arm penetrates through the anti-falling sleeve and is rotatably connected with one end of the sliding blocking cylinder through a pin shaft, a sliding boss is arranged at the other end of the sliding blocking cylinder, the sliding boss is slidably connected with the transverse cylinder, and a compression spring is arranged between the sliding boss and the anti-falling sleeve.
Furthermore, an axial sliding groove is formed in the inner wall of the transverse cylinder, and a protruding sliding block matched with the axial sliding groove is arranged on the sliding boss.
Further, a spring groove is formed between the anti-falling sleeve and the transverse cylinder, one end of the compression spring is arranged in the spring groove, and the other end of the compression spring is sleeved on the sliding blocking cylinder.
Furthermore, an open slot is formed in one end of the sliding blocking cylinder, a shaft head is arranged at one end of the rocker arm and is inserted into the open slot, and the open slot end of the sliding blocking cylinder is rotatably connected with the shaft head through a pin shaft.
Furthermore, the inner wall of the anti-falling sleeve is provided with an anti-rotation sliding groove, and the sliding blocking cylinder is provided with an anti-rotation sliding block matched with the anti-rotation sliding groove.
Furthermore, the head end of the rocker shaft is also provided with a fixed platform matched with the slide way in the anti-falling sleeve.
Furthermore, the anti-falling sleeve is fixedly connected with the transverse cylinder through threads.
Furthermore, the closed end of the transverse cylinder is provided with an extension connecting section.
Furthermore, the extension connecting section is provided with external threads, and the extension connecting section is provided with a pin hole.
Furthermore, the extension connecting section is provided with a threaded hole, the cross section of the extension connecting section is square, and the extension connecting section is provided with a pin hole.
The invention has the beneficial effects that:
1. the rocker arm and the sliding blocking cylinder which can rotate relatively are positioned in the slide way of the anti-falling sleeve, and the rocker arm and the sliding blocking cylinder can be unfolded and folded through the in-out slide way of the rocker arm, so that two objects respectively connected to the rocker arm end and the transverse cylinder end at the side of the sliding blocking cylinder have the functions of unfolding and folding; the folding and unfolding mechanism can complete folding and unfolding of objects through plugging and pulling, has a simple and stable structure, is convenient to use, is stably connected, is very suitable for being used in a low-gravity environment, and well meets the requirement of use in a space station.
2. The design that the axial sliding groove and the protruding sliding block are arranged on the inner wall of the transverse cylinder limits circumferential movement between the transverse cylinder and the sliding blocking cylinder, so that the transverse cylinder is fixed stably when being unfolded;
3. the design of the spring groove avoids the displacement of the compression spring, so that the position of the compression spring is stable when the compression spring is compressed and extended;
4. the design of the open slot and the shaft head limits the folding and unfolding direction between the rocker arm and the transverse cylinder, and simultaneously, the fixed connection of the rocker arm and the transverse cylinder is stable;
5. the anti-rotation sliding groove and the anti-rotation sliding block are designed to limit the relative rotation of the anti-separation sleeve and the sliding blocking cylinder, namely the relative circumferential rotation between the rocker arm and the object connected to the transverse cylinder.
Drawings
FIG. 1 is a schematic cross-sectional view of the first embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a second embodiment of the present invention;
FIG. 3 is a cross-sectional view of a second embodiment of the present invention when folded;
FIG. 4 is a schematic structural diagram of a sliding barrel according to a second embodiment of the present invention;
FIG. 5 is a schematic view of a second embodiment of the anti-separation sleeve of the present invention;
FIG. 6 is a schematic illustration of a rocker arm according to a second embodiment of the invention;
FIG. 7 is a schematic view showing a structure of a third embodiment of the present invention in which two horizontal tubes are connected;
FIG. 8 is a schematic structural view of two types of horizontal tubes in a third embodiment of the present invention;
in the figure: 1. the anti-falling device comprises a transverse cylinder, a 2-anti-falling sleeve, a 3-slideway, a 4-rocker arm, a 5-sliding retaining cylinder, a 6-pin shaft, a 7-sliding boss, a 8-compression spring, a 9-axial sliding groove, a 10-protruding sliding block, a 11-spring groove, a 12-open groove, a 13-shaft head, a 14-anti-rotating sliding groove, a 15-fixing table, a 16-extension connecting section and a 17-pin hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.
The first embodiment is as follows: as shown in fig. 1, the invention provides a plug-pull locking space folding-unfolding mechanism, which comprises a transverse cylinder 1 with a closed end and an anti-falling sleeve 2 sleeved on the non-closed end of the transverse cylinder 1, wherein a slide way 3 is arranged in the anti-falling sleeve 2, a rocker arm 4 and a sliding blocking cylinder 5 are axially and sequentially arranged in the slide way 3, the rocker arm 4 penetrates through the anti-falling sleeve 2 and is rotatably connected with one end of the sliding blocking cylinder 5 through a pin shaft 6, a sliding boss 7 is arranged at the other end of the sliding blocking cylinder 5, the sliding boss 7 is slidably connected with the transverse cylinder 1, and a compression spring 8 is arranged between the sliding boss 7 and the anti-falling sleeve 2.
Example two: as shown in fig. 2-6, the invention provides a plug-pull locking space folding-unfolding mechanism, which comprises a transverse cylinder 1 with a closed end and an anti-falling sleeve 2 sleeved on the non-closed end of the transverse cylinder 1, wherein a slide way 3 is arranged in the anti-falling sleeve 2, a rocker arm 4 and a sliding blocking cylinder 5 are axially and sequentially arranged in the slide way 3, the rocker arm 4 penetrates through the anti-falling sleeve 2 and is rotatably connected with one end of the sliding blocking cylinder 5 through a pin shaft 6, a sliding boss 7 is arranged at the other end of the sliding blocking cylinder 5, the sliding boss 7 is slidably connected with the transverse cylinder 1, and a compression spring 8 is arranged between the sliding boss 7 and the anti-falling sleeve 2.
An axial sliding groove 9 is formed in the inner wall of the transverse cylinder 1, and in the figure 8, a protruding sliding block 10 matched with the axial sliding groove 9 is arranged on the sliding boss 7. The design that the inner wall of the transverse cylinder 1 is provided with the axial sliding groove 9 and the protruding sliding block 10 limits the circumferential movement between the transverse cylinder 1 and the sliding blocking cylinder 5, so that the transverse cylinder is fixed and stable when unfolded.
A spring groove 11 is formed between the anti-falling sleeve 2 and the transverse cylinder 1, one end of the compression spring 8 is arranged in the spring groove 11, and the other end of the compression spring 8 is sleeved on the sliding blocking cylinder 5. The design of the spring groove 11 prevents the compression spring 8 from being displaced, so that the compression spring is stable in position when extended.
An open groove 12 is formed in one end of the sliding blocking cylinder 5, a shaft head 13 is arranged at one end of the rocker arm 4, the shaft head 13 is inserted into the open groove 12, and the open groove end of the sliding blocking cylinder 5 is rotatably connected with the shaft head 13 through a pin shaft 6. The design of the open slot 12 and the shaft head 13 limits the folding and unfolding direction between the rocker arm 4 and the transverse cylinder 1, and simultaneously ensures that the fixed connection is stable.
The inner wall of the anti-falling sleeve 2 is provided with an anti-rotation sliding groove 14, and the sliding blocking cylinder 5 is provided with an anti-rotation sliding block matched with the anti-rotation sliding groove 14. The anti-rotation sliding groove 14 and the anti-rotation slider limit the relative rotation of the anti-separation sleeve 2 and the sliding blocking cylinder 5, namely the relative circumferential rotation between the rocker arm 4 and the object connected on the transverse cylinder 1.
The shaft head end of the rocker arm 4 is also provided with a fixed platform 15 matched with the slide rail 3 in the anti-falling sleeve 2. When the rocker arm 4 and the transverse cylinder 1 are unfolded, the fixing platform 15 is positioned in the slide way 3 of the anti-falling sleeve 2, the rocker arm 4 is further fixed, and the rocking of the rocker arm 4 is avoided.
The anti-falling sleeve 2 is fixedly connected with the transverse cylinder 1 through threads and is connected stably.
Example three: as shown in fig. 7-8, on the basis of the first or second embodiment, the closed end of the transverse cylinder 1 is provided with an extended connecting section 16. The extension connecting section 16 is provided with external threads, the extension connecting section 16 is provided with a pin hole 17, or the extension connecting section 16 on the other transverse cylinder 1 is provided with a threaded hole, the cross section of the extension connecting section is square, and the extension connecting section is provided with a pin hole 17.
Make and to connect through the screw thread between two horizontal section of thick bamboo 1, make and roll over exhibition mechanism and connect the object on folding exhibition mechanism and have more flexibility ratio, can use alone or in groups, more reasonable utilization the space.
When the rocker arm 4 is inserted into the transverse cylinder 1, the rocker arm 4, the anti-falling sleeve 2 and the sliding blocking cylinder 5 cannot rotate, so that good positioning can be performed, the loosening of the thread section of the anti-falling sleeve 2 can be prevented, the compression spring 8 has certain pretightening force, the axial movement of the rocker arm 4 is limited, and the positioning and locking in the unfolding state are completed; when needs are folding, outwards stimulate rocking arm 4, compression spring 8 further compresses, and when the spindle nose 13 of rocking arm 4 broke away from horizontal section of thick bamboo 1, can rotate, because compression spring 8's effect, rocking arm spindle nose 13 and 2 end face contact of anticreep sleeve realize fold condition's location.
The rocker arm 4 and the sliding blocking cylinder 5 which can rotate relatively are positioned in the slide way of the anti-falling sleeve 2, and the rocker arm 4 and the sliding blocking cylinder 5 can be unfolded and folded through the in-out slide way 3 of the rocker arm 4, so that two objects respectively connected to the end of the rocker arm 4 and the end of the transverse cylinder 1 at the side of the sliding blocking cylinder 5 have the functions of unfolding and folding; the compression spring 8 is arranged between the sliding boss 7 and the anti-falling sleeve 2, the compression spring 8 has certain pretightening force, the axial movement of the rocker arm 1 connected with the sliding blocking barrel 5 is limited, and the positioning and locking in an unfolding state are completed.
The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a space of plug locking is folded and is expanded mechanism which characterized in that: the anti-dropping device comprises a transverse cylinder (1) with one end sealed and an anti-dropping sleeve (2) sleeved on the non-sealed end of the transverse cylinder (1), wherein a slide way (3) is arranged in the anti-dropping sleeve (2), a rocker arm (4) and a sliding baffle cylinder (5) are axially and sequentially arranged in the slide way (3), the rocker arm (4) penetrates through the anti-dropping sleeve (2) and is rotatably connected with one end of the sliding baffle cylinder (5) through a pin shaft (6), a sliding boss (7) is arranged at the other end of the sliding baffle cylinder (5), the sliding boss (7) is slidably connected with the transverse cylinder (1), and a compression spring (8) is arranged between the sliding boss (7) and the anti-dropping sleeve (2); the closed end of the transverse cylinder (1) is provided with an extension connecting section (16); the extension connecting section (16) is provided with external threads, and the extension connecting section (16) is provided with a pin hole (17); an axial sliding groove (9) is formed in the inner wall of the transverse cylinder (1), and a protruding sliding block (10) matched with the axial sliding groove (9) is arranged on the sliding boss (7); a spring groove (11) is formed between the anti-falling sleeve (2) and the transverse cylinder (1), one end of the compression spring (8) is arranged in the spring groove (11), and the other end of the compression spring (8) is sleeved on the sliding blocking cylinder (5); the anti-rotation sleeve is characterized in that an anti-rotation sliding groove (14) is formed in the inner wall of the anti-rotation sleeve (2), and an anti-rotation sliding block matched with the anti-rotation sliding groove (14) is arranged on the sliding blocking cylinder (5).
2. The plug-and-play locked space folding and unfolding mechanism according to claim 1, characterized in that: an open slot (12) is formed in one end of the sliding blocking cylinder (5), a shaft head (13) is arranged at one end of the rocker arm (4), the shaft head (13) is inserted into the open slot (12), and the end of the open slot (12) of the sliding blocking cylinder (5) is rotatably connected with the shaft head (13) through a pin shaft (6).
3. The plug-and-play locked space folding and unfolding mechanism according to claim 1, characterized in that: the end of the shaft head (13) of the rocker arm (4) is also provided with a fixed platform (15) matched with the slide way (3) in the anti-falling sleeve (2).
4. The plug-and-play locked space folding and unfolding mechanism according to claim 1, characterized in that: the anti-falling sleeve (2) is fixedly connected with the transverse cylinder (1) through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123936.8A CN109083907B (en) | 2018-09-26 | 2018-09-26 | Plug-pull locking space folding and unfolding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123936.8A CN109083907B (en) | 2018-09-26 | 2018-09-26 | Plug-pull locking space folding and unfolding mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109083907A CN109083907A (en) | 2018-12-25 |
| CN109083907B true CN109083907B (en) | 2021-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811123936.8A Active CN109083907B (en) | 2018-09-26 | 2018-09-26 | Plug-pull locking space folding and unfolding mechanism |
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| CN (1) | CN109083907B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4822199A (en) * | 1987-08-10 | 1989-04-18 | Unistrut International Corp. | Modular frame structure |
| CN2555638Y (en) * | 2002-05-06 | 2003-06-18 | 魏天战 | Folding crank |
| CN202628726U (en) * | 2011-12-12 | 2012-12-26 | 上海航天设备制造总厂 | General hinge unlocking device |
| CN105460236A (en) * | 2015-11-30 | 2016-04-06 | 上海宇航系统工程研究所 | Unfolding and folding locking device for spatial foldable mechanism and spatial foldable mechanism |
| CN106828978A (en) * | 2016-12-29 | 2017-06-13 | 兰州空间技术物理研究所 | A kind of spacecraft telescopic extension mechanism |
| CN107399425A (en) * | 2017-06-07 | 2017-11-28 | 上海空间推进研究所 | Folding rocking handle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5715573A (en) * | 1995-05-22 | 1998-02-10 | Cta Space Systems, Inc. | Self latching hinge |
-
2018
- 2018-09-26 CN CN201811123936.8A patent/CN109083907B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4822199A (en) * | 1987-08-10 | 1989-04-18 | Unistrut International Corp. | Modular frame structure |
| CN2555638Y (en) * | 2002-05-06 | 2003-06-18 | 魏天战 | Folding crank |
| CN202628726U (en) * | 2011-12-12 | 2012-12-26 | 上海航天设备制造总厂 | General hinge unlocking device |
| CN105460236A (en) * | 2015-11-30 | 2016-04-06 | 上海宇航系统工程研究所 | Unfolding and folding locking device for spatial foldable mechanism and spatial foldable mechanism |
| CN106828978A (en) * | 2016-12-29 | 2017-06-13 | 兰州空间技术物理研究所 | A kind of spacecraft telescopic extension mechanism |
| CN107399425A (en) * | 2017-06-07 | 2017-11-28 | 上海空间推进研究所 | Folding rocking handle |
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| Publication number | Publication date |
|---|---|
| CN109083907A (en) | 2018-12-25 |
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