CN2286723Y

CN2286723Y - Cover slinging mechanism

Info

Publication number: CN2286723Y
Application number: CN 96222048
Authority: CN
Inventors: 潘国良; 张思敬; 叶祥发; 陈宪明
Original assignee: Shanghai Institute of Technical Physics of CAS
Current assignee: Shanghai Institute of Technical Physics of CAS
Priority date: 1996-10-23
Filing date: 1996-10-23
Publication date: 1998-07-29
Anticipated expiration: 2006-10-23

Abstract

The utility model provides a cover slinging mechanism used for locking and separating a cover body and a covered body, composed of a cover body, a steel wire binding band, a locker, an electromagnet and a catapult, wherein, the cover body is provided with the steel wire binding band fixed on the covered body; the locker locks the steel wire binding band. When the cover body and the covered body need to be separated, the electromagnet is only energized for 2 seconds, the locker is quickly unblocked, the steel wire binding band is loosened, and the cover body is freely thrown away under the action of a catapult. The utility model has the advantages of high safety and reliability, no pollution, light weight, etc.; the utility model is particularly suitable for astronavigation satellitebased optical instruments.

Description

A kind of throwing cover mechanism

The utility model relates to electric power or magnetic force manipulation or control is unclamped or the device of stationary member, and is particularly a kind of as cover body and by the throwing cover mechanism of cover body locking and separating action.

Along with the progress and development of aerospace industry, spaceborne optical instrument is employed widely, and people require more and more higher to optical instrument simultaneously.Steam and other material have caused the brainstrust concern to the pollution problem of optical instrument.As dirtproof cover is installed at spaceborne optical instrument opening part (optical viewport) is one of necessary anti-pollution measure.After satellite was entered the orbit, when instrument was started working, opening cover was a key technical problem.Space release mechanism in the past adopts explosive bolt or explosive bolt to add auxiliary part more mostly and locks and separate.But consequent dust and smog are with the surface contamination of approaching object.

The purpose of this utility model be to provide a kind of for uses such as spaceborne optical instrument, as cover body with locked by cover body and separating action, light and handy, safe and reliable, the free of contamination throwing cover of structure mechanism.

The purpose of this utility model is finished by following technical solution: this throwing cover mechanism is made up of cover body, steel wire band, locker, electromagnet and ejector etc.A part is installed in by on the cover body, comprise two covers by separately support and the electromagnet installed of strut and connect thereon push rod and chock.Another part is installed on the cover body, comprises that two lockers and four ejectors and a plurality of confession are worn to connect the hasp that the steel wire band is used.When cover body with need be separated the time by cover body, only need the electromagnet energising and electromagnet is drawn back chock, the rapid release of locker, the steel wire band unclamps immediately, cover body is freely cast aside in the effect of ejector.

The utlity model has following beneficial effect:

This mechanism to be specially adapted on the spaceborne instrument of space flight to use be the antipollution requisite measure of spaceborne optical instrument.It has prolonged the service life for spaceborne optical instrument.

2. this mechanism has safe, reliable, pollution-free characteristics.Because it is it is release power that this mechanism adopts two electromagnet in parallel,, safe and reliable as long as there is the electromagnet action can release.There are not any source of pollution yet.

3. this mechanism is very light and handy.Remove outside the cover body, mechanism has only the hundreds of grammes per square metre.Especially be fit to being used on the cover body of thin-wall construction.

The utility model description of drawings is as follows:

Fig. 1 throws cover mechanism for the utility model and is locked in by the view on the cover body.Fig. 1 is the cutaway view of Fig. 2 along the CC direction.

Fig. 2 throws the partial bottom view of cover mechanism for the utility model.Fig. 2 is the cutaway view of Fig. 1 along the AA direction.

Fig. 3 throws the partial side view of cover mechanism for the utility model.Fig. 3 be Fig. 1 along B to view.

Fig. 4 throws the front elevation of locker 10 locking states of cover mechanism for the utility model.

Fig. 5 throws the lateral plan of locker 10 locking states of cover mechanism for the utility model.

Below in conjunction with accompanying drawing concrete enforcement of the present utility model is elaborated:

By support 6 and strut 14 impulse mgnet 13 is being housed by cover body 7 both sides of edges.A chock 5 is equipped with on push rod 12 tops of electromagnet 13.Two lockers 10 are housed, 10 one-tenth 180 ° of layouts of locker on cover body 2.Steel wire band 11 is fixed on the cover body edge by hasp 8, and is distributed on two sides of locker 10.Two ends at steel wire band 11 are equipped with steel ball, are equipped with an adjusting bolt 9 of regulating the steel wire degree of tightness in the centre of steel wire band.Two sides of locker 10 are provided with two hemispherical aperture holes, correctly imbed for the steel ball of steel wire band 11 2 ends.Below hole, spherical hole a cover plate that can freely overturn 3 is arranged respectively, cover plate 3 is flexibly movable when free state, and these two cover plates 3 can be pushed down the steel ball of imbedding during locking state.Flank all has cylindrical hole below every cover plate 3, in a steel ball that can slide in the hole 4 is housed.Be provided with the chock groove in the centre of locker 10.When the chock 5 with electromagnet push-rod 12 1 ends inserted the chock groove, chock pressed to cover plate 3 with the steel ball in the cylindrical hole 4, and the steel ball sphere that exposes blocks cover plate 3, and cover plate 3 will be imbedded the steel wire two end steel balls in hole, ball hole again and push down.So steel wire band 11 has been locked in place, cover body also firmly covers by cover body.The chock 5 that stretches into locker 10 is in the midway location of chock groove and does not collide with cell wall, and the distance that chock inserts has the stroke more than 5 millimeters.When throwing cover, as long as to two seconds of electromagnet 13 input pulse electric currents, during the electromagnet commutation chock 5 is extracted, so the original compacted steel ball 4 on the locker 10 just is free state, two cover plates 3 outwards overturn under the elastic force effect that steel wire band tension force forms.Meanwhile, the steel ball of steel wire two ends of the company's of wearing hasp 8 just nature ejects from spherical hole, the elastic force of steel wire simultaneously with activity flexibly hasp 8 flick, whole latching device just enters released state, cover body is freely cast aside under the effect of enough ejection forces of ejector 1.As long as have an electromagnet action that the steel wire band of tightening is originally loosened in two electromagnet, promptly reach the purpose of reliable release, thereby guaranteed the height reliability of unlocking program.

Claims

1. throw cover mechanism for one kind, comprise cover body (2), steel wire band (11), locker (10), electromagnet (13) and ejector (1), it is characterized in that: be equipped with two and overlap electromagnet (13) and be connected in push rod (12) and chock (5) on the electromagnet being gone up support (6) by separately and strut (14) by cover body (7), two lockers (10), four ejectors (1) and a plurality of confession are installed on cover body (2) wear the hasp (8) that connects steel wire band (11) usefulness, cover body (2) is on steel wire band (11) is fixed in by cover body (7); Electromagnet (13) is gone up chock (5) and through locker (10) steel wire band (11) is locked, when needs are cast aside cover body (2), as long as electromagnet (13) is switched on, electromagnet (13) is promptly drawn back chock (5), just release immediately of locker, steel wire band (11) unclamps, and cover body (2) is freely cast aside under ejector (1) effect.

2. according to the throwing cover mechanism of claim 1 defined, two sides that it is characterized in that said locker (10) are provided with the nearly hemispherical aperture hole of imbedding for steel wire band (11) end steel ball, below the hole, hole, respectively there is the voltage supply that freely to overturn to live the cover plate (3) of steel wire band end steel ball, flank has cylindrical hole in cover plate (3) below, slidably steel ball (4) is housed in the cylindrical hole, is provided with the chock groove of filling in for chock (5) in the middle part of locker (10).

3. according to the throwing cover mechanism of claim 1 defined, it is characterized in that two ends of said steel wire band (11) are connected with steel ball, be equipped with in the middle part of steel wire band for the adjusting bolt (9) of regulating the steel wire degree of tightness.