CN111550482A - Cam type locking and unlocking device - Google Patents
Cam type locking and unlocking device Download PDFInfo
- Publication number
- CN111550482A CN111550482A CN201911368557.XA CN201911368557A CN111550482A CN 111550482 A CN111550482 A CN 111550482A CN 201911368557 A CN201911368557 A CN 201911368557A CN 111550482 A CN111550482 A CN 111550482A
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- CN
- China
- Prior art keywords
- lock pin
- knob
- locking
- cam
- spring
- 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
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- 230000007246 mechanism Effects 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/045—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front having axially compressing parts allowing the clamping of an object tightly to the wall
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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
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/10—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front with separate gripping parts moved into their final position in relation to the body of the device by a separate operation
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a cam type locking and unlocking device, which can lock and unlock two devices through the double functions of a lock pin spring and a cam curved surface by manually rotating a knob, has high locking and unlocking speed, simple structure and convenient operation, is not influenced by external power failure, does not use a star ship power supply, does not have the risks of power failure, incapability of working, hydraulic leakage and the like, and has better reliability.
Description
Technical Field
The invention belongs to the technical field of locking and unlocking devices, and particularly relates to a cam type locking and unlocking device.
Background
In the existing mechanical part connection, most of the mechanical part connection is carried out by using screw nuts, and the screw nuts are used for connection, although the mechanical part connection also has better reliability and does not need complicated design, in the aerospace product design, particularly when the mechanical part connection is carried out in space, on one hand, a special tool is needed for dismounting and mounting when the screw nuts are connected, on the other hand, if the mechanical part connection is adopted, the dismounting and mounting cost is more, and when the dismounting and mounting times are more, the screw nut connection is easy to fail.
Disclosure of Invention
In view of this, the invention provides a cam type locking and unlocking device, which can realize quick locking and unlocking between devices.
The invention provides a cam type locking and unlocking device for a spacecraft, which comprises a knob and a locking mechanism, wherein the knob is of a circular structure, the upper surface of the knob is a cam curved surface conforming to a cam profile curve, and the center of the lower surface of the knob is provided with a through hole; the locking mechanism comprises a lock pin head, a lock pin and a lock pin spring, the lock pin head is of a T-shaped structure, and the horizontal part of the lock pin head is in contact with the curved surface of the cam; the lock pin is fixedly connected with the vertical part of the lock pin head through the through hole; the lock pin spring is sleeved outside the lock pin, the bottom of the lock pin spring is limited by a bulge positioned at the bottom of the lock pin, and the top of the lock pin spring is limited by the bottom of the knob; the shape of the through hole is matched with the appearance of the lock pin, so that the lock pin is limited to rotate; the rotation of the knob drives the locking mechanism to move along the axial direction of the locking mechanism, and the axial movement realizes the locking and unlocking of the parts to be fixed.
Further, a knob cover is assembled on the outer side of the knob.
Further, the knob cover is fixedly connected with the knob.
Has the advantages that:
the locking and unlocking device can lock and unlock two devices through the double functions of the locking pin spring and the cam curved surface by manually rotating the knob, has high locking and unlocking speed, simple structure and convenient operation, is not influenced by external power failure, does not use a star ship power supply, does not have the risks of power failure, incapability of working, hydraulic leakage and the like, and has better reliability.
Drawings
Fig. 1 is a partial sectional view of a front view of a cam type locking and unlocking device provided by the present invention.
Fig. 2 is a left side sectional view of the cam type locking and unlocking device provided by the invention.
Fig. 3 is a partial sectional view of the connection between the cam type locking and unlocking device and the positioning hole of the top cover of the battery box when the cam type locking and unlocking device is applied to locking and unlocking of the main box and the battery box for aerospace.
Fig. 4 is a structural dimension diagram of a lock pin of the cam type locking and unlocking device provided by the invention.
Wherein, 1-knob cover, 2-lock pin, 3-lock pin head, 4-lock pin spring, 5-knob, 6-positioning bulge, and 7-battery box top cover.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
In the design of aerospace products, in order to solve the problem of quick assembly and disassembly in the existing device, a cam type quick locking and unlocking device is adopted. The cam type quick locking and unlocking device is characterized in that a driven piece is mounted on a cam curved surface of a knob, the knob is rotated, the driven piece generates corresponding displacement along with the change of the cam curved surface, and a limiting structure arranged on a battery box shell can limit the axial displacement of the knob, so that the knob can only rotate, and a lock pin head can only generate axial displacement. The dual function of the elastic stress of the cam curved surface and the locking pin spring can generate locking force on the driven piece, and the host and the battery box can be quickly locked and unlocked through the cam type locking and unlocking device, so that a astronaut can conveniently disassemble and assemble the battery box and supplement battery energy.
The invention provides a cam type locking and unlocking device, which comprises five parts as shown in figures 1 and 2: knob lid, knob, lockpin head, lockpin and lockpin spring. The knob is cylindrical structure, and the upper surface of knob is the cam curved surface that accords with cam profile curve, and the lockpin head contacts with the cam curved surface, and lockpin head bottom is seted up there is the internal thread, and the one end of lockpin is location arch, and the external screw thread has been seted up to one end in addition, installs on the lockpin spring through lockpin tapping one end, and the location arch is fixed with the lockpin spring, prevents that the lockpin spring from droing. The lock pin and the lock pin spring are connected with the lock pin head through the mounting hole on the side surface of the battery box. Wherein, the appearance of the lock pin head is T-shaped.
The knob top is furnished with the knob lid, and the effect of knob lid is for the protection knob, prevents that astronaut direct contact knob, and the accident is with the knob unblock, leads to the battery case to drop.
The knob lid also can be fixed on the knob, and two threaded connection holes have been seted up to the knob side, and two screw holes have been seted up to knob lid side for connect knob lid and knob fixedly, the bottom of the screw of knob lid both sides links to each other with the limit structure's of battery box casing side "deep trouth" simultaneously, makes the knob can only rotate, does not produce axial displacement.
The bottom end of the locking pin head is mounted on a limiting structure on the battery box shell, and the battery box shell is provided with a hole which has the same shape as the vertical part of the locking pin head, for example, the hole is approximately square, so that the locking pin head can only generate axial displacement, as shown in figure 3.
As shown in fig. 4, the length of the locking pin is 55mm, and the length of the locking pin for mounting the spring end of the locking pin is 44 mm.
The locating bulge is formed in one end of the lock pin, the thickness of the locating bulge is 1mm, the distance between the position of the locating bulge and the end face of one side of the lock pin is 6mm, the diameter of the lock pin between the bulge and the end face of the lock pin is 4mm, and the lock pin is used for being connected with a locating hole in the bottom of a shell to be connected, so that two parts or mechanisms are connected and locked.
The assembly process of the cam type locking and unlocking device provided by the invention is as follows:
1. installing a lock pin head on a cam curved surface of a knob, enabling extension rods on two sides of the lock pin head to be in full contact with the cam curved surface, and installing the bottom end of the lock pin head on a limiting structure on the side surface of a battery box shell;
2. installing a lockpin spring on a lockpin from one side of the lockpin with threads, wherein the other side of the lockpin is provided with a positioning bulge for fixing the position of the lockpin spring;
3. aligning the knob and the lock pin head to a positioning hole of the battery box shell, and connecting the lock pin (with threads) provided with the lock pin spring with the bottom of the lock pin head;
4. the knob cover is connected with the knob through a screw, and the screw fixes the knob on a limiting structure on the side surface of the battery box shell and is used for fixing the axial displacement of the knob;
5. and when the locking pin head is positioned at the bottom dead center of the cam curved surface, the two parts (mechanisms) are in a locking state.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The cam type locking and unlocking device for the spacecraft is characterized by comprising a knob and a locking mechanism, wherein the knob is of a circular ring structure, the upper surface of the knob is a cam curved surface conforming to a cam profile curve, and the center of the lower surface of the knob is provided with a through hole; the locking mechanism comprises a lock pin head, a lock pin and a lock pin spring, the lock pin head is of a T-shaped structure, and the horizontal part of the lock pin head is in contact with the curved surface of the cam; the lock pin is fixedly connected with the vertical part of the lock pin head through the through hole; the lock pin spring is sleeved outside the lock pin, the bottom of the lock pin spring is limited by a bulge positioned at the bottom of the lock pin, and the top of the lock pin spring is limited by the bottom of the knob; the shape of the through hole is matched with the appearance of the lock pin, so that the lock pin is limited to rotate; the rotation of the knob drives the locking mechanism to move along the axial direction of the locking mechanism, and the axial movement realizes the locking and unlocking of the parts to be fixed.
2. The device of claim 1, wherein an outer side of the knob is fitted with a knob cover.
3. The device of claim 1, wherein the knob cover is fixedly coupled to the knob.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911368557.XA CN111550482B (en) | 2019-12-26 | 2019-12-26 | Cam type locking and unlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911368557.XA CN111550482B (en) | 2019-12-26 | 2019-12-26 | Cam type locking and unlocking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111550482A true CN111550482A (en) | 2020-08-18 |
| CN111550482B CN111550482B (en) | 2022-01-21 |
Family
ID=71998095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911368557.XA Active CN111550482B (en) | 2019-12-26 | 2019-12-26 | Cam type locking and unlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111550482B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824629A (en) * | 2022-05-18 | 2022-07-29 | 武汉长江光电有限公司 | Quick locking device of battery clamp |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000019113A1 (en) * | 1998-09-25 | 2000-04-06 | Hanstock Fasteners Pty. Ltd. | Blind bolting |
| US6047442A (en) * | 1998-03-03 | 2000-04-11 | Tumi, Inc. | Releasable lock mechanism for luggage towing handle |
| EP0810944B1 (en) * | 1995-12-08 | 2002-08-28 | Mavic S.A. | Rapid locking pin for use on a cycle |
| CN101122306A (en) * | 2007-08-08 | 2008-02-13 | 中国科学院光电研究院 | Locking mechanism |
| CN202612311U (en) * | 2011-12-29 | 2012-12-19 | 天津市艾维金属制品有限公司 | Rotary spring pin buckle |
| CN103321502A (en) * | 2013-07-10 | 2013-09-25 | 东风汽车公司 | Escape window locking mechanism |
| CN204099374U (en) * | 2014-09-23 | 2015-01-14 | 新疆金风科技股份有限公司 | Locking device, generator and wind power generating set |
| CN105020217A (en) * | 2015-07-27 | 2015-11-04 | 湖州佳宁印刷有限公司 | Rapid connection device |
| CN105173122A (en) * | 2015-09-10 | 2015-12-23 | 兰州空间技术物理研究所 | Connecting device applied between outboard handle of spacecraft and exposed load |
| CN204899445U (en) * | 2015-09-08 | 2015-12-23 | 乐清市宝泰锁具有限公司 | Novel tool to lock |
| CN106438607A (en) * | 2015-08-07 | 2017-02-22 | 伍鐌科技股份有限公司 | Quick positioning fastener |
-
2019
- 2019-12-26 CN CN201911368557.XA patent/CN111550482B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0810944B1 (en) * | 1995-12-08 | 2002-08-28 | Mavic S.A. | Rapid locking pin for use on a cycle |
| US6047442A (en) * | 1998-03-03 | 2000-04-11 | Tumi, Inc. | Releasable lock mechanism for luggage towing handle |
| WO2000019113A1 (en) * | 1998-09-25 | 2000-04-06 | Hanstock Fasteners Pty. Ltd. | Blind bolting |
| CN101122306A (en) * | 2007-08-08 | 2008-02-13 | 中国科学院光电研究院 | Locking mechanism |
| CN202612311U (en) * | 2011-12-29 | 2012-12-19 | 天津市艾维金属制品有限公司 | Rotary spring pin buckle |
| CN103321502A (en) * | 2013-07-10 | 2013-09-25 | 东风汽车公司 | Escape window locking mechanism |
| CN204099374U (en) * | 2014-09-23 | 2015-01-14 | 新疆金风科技股份有限公司 | Locking device, generator and wind power generating set |
| CN105020217A (en) * | 2015-07-27 | 2015-11-04 | 湖州佳宁印刷有限公司 | Rapid connection device |
| CN106438607A (en) * | 2015-08-07 | 2017-02-22 | 伍鐌科技股份有限公司 | Quick positioning fastener |
| CN204899445U (en) * | 2015-09-08 | 2015-12-23 | 乐清市宝泰锁具有限公司 | Novel tool to lock |
| CN105173122A (en) * | 2015-09-10 | 2015-12-23 | 兰州空间技术物理研究所 | Connecting device applied between outboard handle of spacecraft and exposed load |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824629A (en) * | 2022-05-18 | 2022-07-29 | 武汉长江光电有限公司 | Quick locking device of battery clamp |
| CN114824629B (en) * | 2022-05-18 | 2024-02-13 | 武汉长江光电有限公司 | Quick locking device of battery clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111550482B (en) | 2022-01-21 |
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Addressee: Lanzhou Institute of Space Technology Physics, patent director Document name: Notice of conformity |
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