The theftproof lock opal
Technical field
The present invention relates to a kind of theftproof lock opal.
Background technology
Nowadays, increasing family has used security door, in order under the security door closing state, in the house, to observe guest or other situation outside the room, opal often has been installed on the security door.The opal that early occurs is that a through hole is set on security door, and the translucent element of one-way viewable is installed on through hole; But; Occurred " anti-opal sight glass " in the market, by this " anti-opal sight glass ", the lawless person can be from directly spying on the situation in the door outdoors.In addition; Also there is potential safety hazard on the other hand in this opal: the translucent element of opal is easy to damaged by the lawless person; After translucent element is damaged; The through hole that opal is installed is exposed out, and the lawless person can stretch into a back of the body with special tool from the opal hole that connects, and various automatic door locks and the hand do not locked is held lock open.In order to prevent that the lawless person is from directly observe the situation in the door by anti-sight glass outdoors; Chinese patent CN200520036243.7 discloses a kind of theftproof lock opal; Its structure for a side in common opal door be provided with one can move left and right baffle plate; When needs are observed situation outdoors, open baffle plate with hand push and open peep hole; In the time of need not observing, with baffle plate forced back sealing peep hole.But the baffle plate of this opal does not have latch-up structure, after the lawless person damages translucent element, can baffle plate be pushed aside with instrument, from installation through holes, special tool is stretched into behind the door and unblanks; And the baffle plate of this opal can not automatically reset after observation, forgets baffle plate is resetted if the user observes the back, also stays opportunity to the lawless person.
Summary of the invention
The technical problem that the present invention will solve provide a kind of observation finish the back shutter can automatically reset and the better opal of anti-theft effect.
In order to solve above technical problem; Burglarproof peep hole in scheme of the present invention; Comprise shell, base plate, translucent element, reposition element, shutter, plectrum, location-plate, it is characterized in that: an end of described shutter is articulated on the location-plate, offers the crank slot of the curved position of band on the shutter; A projection that matches with said crank slot is set on the plectrum, and plectrum is articulated on the location-plate and can pivots around pivoting point, and reposition element links to each other with plectrum; When plectrum was stirred by external force, described projection skidded off the curved position of crank slot, and plectrum pivots and drives the shutter pivot peep hole is opened; When plectrum was not resetted by external force, described projection was positioned at the curved position of crank slot with shutter locking and sealing peep hole.Be at burglarproof peep hole under the state of non-observation, reposition element locks plectrum, even damaged when translucent element, and tool using stirs shutter, shutter is subjected to displacement, thereby plays the antitheft effect effectively; And when opening peep hole thereby can stir plectrum and drive the shutter skew with hand when burglarproof peep hole is observed situation outdoors; In the time of need not observing, unclamp plectrum, plectrum automatically resets under the effect of the restoring force of reposition element and makes the shutter sealing peep hole that resets.
Burglarproof peep hole as another one scheme of the present invention; Comprise shell, base plate, translucent element, locking plate, shutter, plectrum; It is characterized in that: offer the crank slot that has curved position on the described plectrum, plectrum is articulated on the location-plate and can pivots around pivoting point; A projection that matches with said crank slot is set on the described shutter; The root of locking plate is articulated on the location-plate through back-moving spring, its top be opened in the clamping matching on the shutter; The direction that the extended line of described its end face of plectrum and shielding plate move tilts to intersect; When plectrum was stirred by external force, described projection skidded off the curved position of crank slot, and the end face of plectrum is released described screens with the top of locking plate when plectrum pivots, and plectrum drive shielding plate moves opens peep hole; When described plectrum was not resetted by external force, described projection was positioned at the curved position of crank slot, and its top of described locking plate is arranged in described screens, and shielding plate can not move and seal peep hole.Because locking plate locks shutter, even damaged when translucent element, and tool using stirs shutter, shutter is subjected to displacement, thereby plays the antitheft effect effectively; And when opening peep hole thereby can stir plectrum and drive the shutter skew with hand when burglarproof peep hole is observed situation outdoors; In the time of need not observing, unclamp plectrum, plectrum automatically resets under the effect of the restoring force of reposition element and makes the shutter sealing peep hole that resets.
As another improvement project of the present invention, shutter is provided with lead, on location-plate, offers the guide groove corresponding with the projection that leads with the corresponding position of guiding projection, and the guiding projection can move in guide groove.This structure makes that the travel mechanism of shutter is simple, installation and easy to operate.
Description of drawings
Below in conjunction with accompanying drawing, the present invention is done further explanation.
Fig. 1 is the STRUCTURE DECOMPOSITION sketch map of first embodiment.
Fig. 2 is the sketch map of first embodiment at shutter sealing peep hole.
Fig. 3 is the structural representation of first embodiment when shutter does not seal peep hole.
Fig. 4 is the plectrum sketch map among first embodiment
Fig. 5 is the STRUCTURE DECOMPOSITION sketch map of second embodiment.
Fig. 6 is the sketch map of second embodiment at shutter sealing peep hole.
Fig. 7 is the structural representation of second embodiment when shutter does not seal peep hole.
Fig. 8 is the sketch map of plectrum among second embodiment.
Wherein: shell 1, translucent element 2, translucent element sheath 21, location-plate 3, positioning convex 31, guide groove 32, shutter 4, lead 41, screens 42, plectrum 5, base plate 6, locking plate 7, back-moving spring (reposition element) 8, crank slot 9, curved position 91, projection 10.
Specific embodiment
Fig. 1, Fig. 2, Fig. 3, Fig. 4 are the sketch map of first embodiment.The burglarproof peep hole of first embodiment mainly comprises parts such as metal shell 1, translucent element sheath 21, translucent element 2, location-plate 3, shutter 4, base plate 6.Shell 1 positions translucent element 2 with sheath on the one hand, can prevent that on the other hand the lawless person from extracting translucent element 2 outside door.Offer the circular hole that a size and shape match with translucent element sheath 21 on the shell 1; Two bolts hole are arranged on the shell 1; During installation; Adopt two bolts that shell 1 is fixed on security door, translucent element 2 is installed in translucent element sheath 21 backs place shell 1 from the inboard of door circular hole, and location-plate 3 is provided with two bolts hole respectively with base plate 6 on the position corresponding with the bolt of fixed housing 1; It is fixing with base plate 6 with location-plate 3 successively that one of them bolt passes door-plate behind the outside fixed housing 1 of door, and another bolt then passes location-plate 3, plectrum 5 and base plate 6 respectively behind gatekeeper's outside fixed housing 1.Base plate 6 is formed the box body shape with shell 1; The parts of burglarproof peep hole are enclosed in the box body, in addition, offer a peep hole that matches with translucent element 2 on the base plate 6; Base plate 6 also is provided with a positioning convex 31; The size of positioning convex 31 and shape match with the size and the shape of the fixing hole of plectrum 5, and this positioning convex 31 passes the fixing hole of plectrum 5, make that plectrum 5 can be that pivotal point pivots around this positioning convex 31 and with positioning convex 31.Plectrum 5 structurally two cantilevers is formed; Its shape roughly is " herringbone "; Front end at a cantilever is provided with a projection 10 that can drive shutter 4 swings; Its another cantilever is the handle of plectrum 5, and this handle stretches out housing from the side of shell 1, stirs handle and can realize shutter 4 sealings or open peep hole; Two cantilever intersections are for inserting the fixing hole of positioning convex 31; In addition; Cross at two cantilevers and to stretch out the end that a support arm is used for fixing V-type back-moving spring 8; The other end of V-type back-moving spring 8 is fixed on the sub-location-plate 3; Be struck when opening peep hole external force removing subsequently at plectrum 5, back-moving spring 8 traction plectrums 5 pivot and shutter 4 is resetted and seal peep hole.Translucent element 2 can be selected half mirror, and outdoor people can not be through the situation in the opal observation ward.One end of shutter 4 is articulated on the location-plate 3 and can pivots around pivoting point; Crank slot 9 is set on the shutter 4, and crank slot 9 is formed by connecting straight type groove and curved position 91, and the size shape of straight type groove matches with the projection 10 on being arranged on plectrum 5.
The course of work of first embodiment is following: under non-observation state; Back-moving spring 8 makes plectrum 5 arbitrarily not swing plectrum 5 tractions; Projection 10 on the plectrum 5 is positioned at 91 places, curved position of shutter 4 crank slots 9; Shutter 4 can not be swung by the constraint of plectrum 5 projections 10, at this moment shutter 4 sealing peep holes.When need observing outdoor situations, stir the handle of plectrum 5 with hand, the projection 10 of plectrum 5 slips into the straight type slot part of crank slot 9 from the curved position 91 of crank slot 9, and plectrum 5 drove shutters 4 through projection 10 and pivoted this moment, and peep hole is unlocked.When observation finishes, external force is withdrawn from plectrum 5, and back-moving spring 8 traction plectrums 5 reset, and the projection 10 on this moment plectrum 5 slides to the curved position 91 of crank slot 9 from crank slot 9 straight type slot parts, thereby drive shutter 4 resets and seals peep hole.
In above-mentioned first embodiment; When non-observation state; Back-moving spring 8 traction plectrums 5 can not pivot plectrum 5; And the projection 10 on the plectrum 5 is in the curved position 91 of shutter 4 crank slots 9 and makes shutter 4 not swing, even illegal molecule damage translucent element 2 also can't tool using be pushed shutter 4 aside.When the observer observe finish unclamp plectrum 5 after, plectrum 5, shutter 4 automatically reset, and therefore, if avoided opal of the prior art to observe to finish to forget the observer shutter 4 are resetted and give the drawback of lawless person's opportunity.
Fig. 5, Fig. 6, Fig. 7, Fig. 8 are the sketch map of second embodiment.The burglarproof peep hole of first embodiment mainly comprises parts such as metal shell 1, translucent element sheath 21, translucent element 2, location-plate 3, shutter 4, base plate 6.Shell 1 positions translucent element 2 with translucent element sheath 21 on the one hand, can prevent that on the other hand the lawless person from extracting translucent element 2 outside door.Offer the circular hole that a size and shape match with translucent element sheath 21 on the shell 1; Four bolts hole are arranged on the shell 1; During installation; Adopt four bolts that shell 1 is fixed on security door, translucent element 2 is installed in translucent element 2 sheaths 21 backs place shell 1 from the inboard of door circular hole, and above-mentioned four bolts once link together location-plate 3 and base plate 6.On location-plate 3, offer a circular hole that cooperates with translucent element 2 with translucent element 2 corresponding positions; In addition; The direction that parallel shutter 4 moves on location-plate 3 is offered two guide grooves 32 that supply shutter 4 to move; The size of guide groove 32 matches with the lead 41 that is positioned at shutter 4 bottoms, and this lead 41 can slide in guide groove 32 and realize the unlatching and the sealing of shutter 4.The locking plate 7 of approximate 7 fonts, the root of locking plate 7 is articulated on the location-plate 3 through restoration original part, and the top of locking plate 7 cooperates with screens 42 on being opened in shutter 4.An end that stretches out shell 1 on the plectrum 5 is a handle, is used to stir plectrum 5; The other end of plectrum 5 offers the crank slot 9 of the curved position 91 of band, and this crank slot 9 is formed by connecting straight type groove and curved position 91, and the size and the shape of straight type groove match with the projection 10 that is arranged on shutter 4 tops; The middle part of plectrum 5 is articulated on the location-plate 3, and plectrum 5 can pivot around pivoting point when stirring plectrum 5 handles; Plectrum 5 tilts to intersect away from the extended line of its its end face of end face of an end of handle and direction that shutter 4 moves can be with releasing the screens 42 of top from shutter 4 of locking plate 7 when making that plectrum 5 is struck.
The course of work of second embodiment is following: under non-observation state; Back-moving spring 8 is with locking plate 7 location; The top card of locking plate 7 is in the screens 42 of shutter 4; And the projection on the shutter 4 10 is positioned at 91 places, curved position of plectrum 5 crank slots 9, and shutter 4 suffered restraints and can not move this moment, shutter 4 sealing peep holes.When needs are observed; Stir plectrum 5 handles with hand; To the straight type groove of crank slot 9, because plectrum 5 intersects away from the direction that extended line and the shutter 4 of its end face of end of handle moves, plectrum 5 can be positioned at the screens 42 on the shutter 4 with the top release of locking plate 7 to projection 10 on the shutter 4 when continuing to stir plectrum 5 from curved position 91 slippages of plectrum 5 crank slots 9; Plectrum 5 drives shutter 4 and moves, and opens peep hole.When observation finished, external force was withdrawn from plectrum 5, and back-moving spring 8 traction plectrums 5 reset, and the projection 10 on this moment plectrum 5 slides to the curved position 91 of crank slot 9 from crank slot 9 straight type slot parts, thereby drive shutter 4 resets and seals peep hole.
In above-mentioned second embodiment; When non-observation state, back-moving spring 8 traction lock stators 7 make in the screens 42 of top card on shutter 4 of locking plate 7; And the projection 10 on the plectrum 5 is in the curved position 91 of shutter 4 crank slots 9; This makes shutter 4 not move, even illegal molecule damage translucent element 2 also can't tool using be pushed shutter 4 aside.When the observer observe finish unclamp plectrum 5 after, plectrum 5, shutter 4 automatically reset, and therefore, if avoided opal of the prior art to observe to finish to forget the observer shutter 4 are resetted and give the drawback of lawless person's opportunity.
In the first embodiment of the present invention or among second embodiment, projection 10 can exchange with the position of crank slot 9, and for example, projection 10 can be arranged on the shutter 4 in first embodiment, and correspondingly crank slot 9 can be arranged on the plectrum 5; Projection 10 among second embodiment can be arranged on the plectrum 5, and correspondingly crank slot can be arranged on the shutter 5.The position that is projection 10 and crank slot 9 can exchange each other, also belongs to the scope of the present invention's protection.