CN202788551U

CN202788551U - Safety door viewer with liftable ocular lens

Info

Publication number: CN202788551U
Application number: CN2012200138037U
Authority: CN
Inventors: 郭文风
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-01-13
Filing date: 2012-01-13
Publication date: 2013-03-13
Anticipated expiration: 2022-01-13

Abstract

A safety door viewer with a liftable ocular lens comprises an object lens group installed in a door viewer preformed hole and an ocular lens group connected at the back end of the object lens group, the object lens group is commonly formed by a lens barrel, a double concave lens, and a convex lens, and the ocular lens group is commonly formed by a lens barrel, two plane mirrors fixed on the inner wall of a lens barrel with a handle, with opposite mirror surfaces, and in parallel to each other, a concave lens, and a convex lens. When observation of an outdoor scene is needed, an observer pulls the handle 16 to make the ocular lens be at a proper observation height in the process of the ocular lens group being driven to rotate around the ocular group axis under the support of bearings 11, 12, and make two plane mirrors 9, 10 always be at a 45 degree angle with a door plate, a reduced upright virtual image of the outdoor scene formed by the object lens group via reflection by an upright longitudinal front double plane mirror group in the ocular lens group and amplification by the ocular lens group, then the upright virtual image is seen by an observer via the ocular lens 8.

Description

Eyepiece liftable security peephole

Technical field

The peephole technical field, this is novel to relate to and is applicable to security door, safety door and other and realizes the device that full angle is relatively observed flexibly in the confined space.

Background technology

Existing peephole is comprised of biconcave lens and a slice convex lens, is installed in security door and reserves in the peephole hole, and is high apart from 1.4 meters on ground.Peephole, eyeglass mostly are plastic material, and the peephole preformed hole connects the inside and outside two-layer door-plate of security door, have reduced the security performance of security door.When the observer observes the outside scene by peephole, must be near peephole, and there are certain personal safety hidden danger in eyes and peephole to the observer like this on the same straight line.Simultaneously the peep hole of peephole is consistent with the objective aperture height and immobilize, and is not easy to different height crowds use, the especially shorter colony of height, such as children.

Summary of the invention

The objective of the invention is: by this door mirror device of eyepiece liftable peephole, eyepiece group and objective lens are combined by the periscope group, the eyepiece group links together by bearing and front end lens barrel and supporting plate.In the constant situation of object lens position, height and viewing angle, staggered in object lens part and the eyepiece part position of peephole, eyepiece partly can freely move up and down simultaneously, so that the people of different heights can both observe by door mirror, field range is wide.When this door mirror did not use, the peep hole Automated shade can not be seen in the door by peephole outdoors in the shutter back, reach the peep-proof effect.This door mirror has improved safety and the convenience of security door peephole on the whole.

The present invention is achieved in that

Will be by being fixed in the same lens barrel, the biconcave lens that primary optical axis overlaps is called objective lens with the virtual image that biconcave lens becomes apart from the set of lenses that the convex lens less than focal length form with a slice.

To be parallel to each other by the two sides, minute surface is relative, and with the line of centres respectively the level crossing group at angle at 45 ° be called the periscope group.Wherein a level crossing is injected for accepting light, is called and injects the hole level crossing, and the another side level crossing is called and penetrates the hole level crossing as the level crossing that reflection ray penetrates.Respectively by the line of centres of two level crossings centered by the reflected ray of two level crossings, open two light holes at the lens barrel sidewall, the light hole of injecting hole level crossing one end is called injects the hole, the light hole that penetrates hole level crossing one end is called and penetrates the hole.Penetrating hole installation a slice concavees lens, be called eyepiece.Focal length is installed greater than the convex lens as the empty focal length of the concavees lens of eyepiece between the two level crossing lines of centres.The convex lens that penetrate between hole level crossing, eyepiece, two level crossings all are fixed on the lens barrel inwall, jointly consist of the eyepiece group.

Objective lens is installed in the peephole preformed hole of security door, the center line of lens barrel is vertical with plane, security door door-plate place, objective lens lens barrel rear end is connected to the eyepiece group to this group periscope group exit wound of bullet back again and enters the perforation front end over against the entrance port of one group of periscope group.After perhaps the objective lens peephole that is installed in security door was reserved in the emptying aperture, the eyepiece group was directly installed in objective lens lens barrel rear end, and objective lens lens barrel open rearward end is injected the hole over against the eyepiece group.The eyepiece group is linked together by bearing and front end lens barrel and supporting plate, the eyepiece group can be wound take the eyepiece group two level crossing lines of centres injecting rotating as axle perpendicular to the straight line of security door of flat mirror reflects line place, hole.Thereby the outdoors upright virtual image that becomes by objective lens of scene again by the reflection of level crossing and the amplification of eyepiece group lens, is penetrated the concavees lens eyepiece of eyepiece group.Observer's eyes can both by the eyepiece group that can rotate around the axis, be observed outdoors scene at differing heights like this.

Description of drawings:

Wherein, Fig. 1 is twice reflection eyepiece liftable security peephole of handle type;

Fig. 2 is handle type band form supporting plate part;

Fig. 3 is Anti-peep baffle and with the scheme of installation of the bottom parts of vibration damping layer;

Fig. 4 is the Anti-peep baffle part;

Fig. 5 is the baffle plate bottom parts with the vibration damping layer;

Fig. 6 is dragline type band form supporting plate part;

Fig. 7 is four secondary reflection eyepiece liftable security peepholes;

Fig. 8 is the installation site schematic diagram of four secondary reflection eyepiece liftable security peepholes;

Fig. 9 is external secondary reflection security peephole;

Figure 10 is built-in secondary reflection security peephole.

The specific embodiment:

Fig. 1: twice reflection eyepiece liftable security peephole of handle type.Among the figure: 1 expression internal hilar plate, 2 expression external door panel, 3 expression lens barrels one are called the objective lens lens barrel, are installed in the peephole preformed hole, and are vertical with door-plate, and 4 expression lens barrels two are called eyepiece arrangement of mirrors cylinder, and 5 expression biconcave lens are comprised of two concavees lens that overlap; 6 expression convex lens, one, 7 expression convex lens two.8 expression concavees lens are called eyepiece, 9 expression level crossings one, 10 expression level crossings two, this two sides level crossing consists of one group of periscope group, and 9 are called and inject the hole level crossing, and 10 are called and penetrate the hole level crossing, 11 expression bearings one, two, the 13 expression rotating shafts of 12 expression bearings, 14 expression nuts, 15 expression supporting plates are fixed on the door-plate 1.16 expression handles are fixed together with

lens barrel

24,17 expression forms, supporting plate 15 reserve over against concavees lens 8 positions, 18 expression handle grooves.The opening in the handle activity of supporting plate reservation, the fixed mount of 19 expression level crossings, 20 are illustrated in the doorbell hole that the objective lens lens barrel is reserved.

Lens barrel 1, biconcave lens 5 and the convex lens one 6 common objective lens that form.Convex lens 27, concavees lens 8, level crossing 1, level crossing 2 10 are fixed on lens barrel 24 inwalls, the common eyepiece group that forms, bearing one 11 external diameters are connected with lens barrel 24, and internal diameter is connected with lens barrel one (3), bearing 2 12 external diameters are connected with supporting plate 15, and internal diameter is connected with rotating shaft 13.With the eyepiece group of the supporting plate of form 17, handle groove 18, bearing 1, bearing 2 12 and band handle 16 together, be called handle type liftable eyepiece group.The objective lens open rearward end is over against the hole of injecting of eyepiece group.Objective lens consists of twice reflection eyepiece liftable of handle type security peephole with handle type liftable eyepiece group.When the observer need to observe outdoors scene, pulling handle 16, driving the eyepiece group rotates around axis under supporting at bearing 1, bearing 2 12, make concavees lens 8 be in the height that is fit to observation, the level crossing 1 of periscope group two level crossing groups, level crossing 2 10 all the time with door-plate angle at 45 °, scene becomes after by objective lens outdoors dwindles the upright virtual image, sees by concavees lens 8 observed persons through the upright virtual image after periscope group reflection in the eyepiece group and the amplification of eyepiece group.

Fig. 2-5: handle type band form supporting plate part.Among the figure: 4 expression lens barrels two are called eyepiece arrangement of mirrors cylinder, 12 expression bearings two, 13 expression rotating shafts, 15 expression supporting plates, 16 expression handles are fixed on lens barrel 24 outer walls, 17 expression forms, 18 expression handle grooves, 21 expression Anti-peep baffles, 22 expression nuts, 23 expression screws, 24 expressions are with the baffle plate base plate of vibration damping layer.Dotted portion represents to be blocked below supporting plate.Anti-peep baffle 21 is fixed to the position of the needs on the supporting plate form by nut 22 and screw 23.When using this door mirror of handle type twice reflection eyepiece liftable security peephole to observe outdoors scene, pulling handle 16 slips into form 17 with liftable eyepiece, when not using, lens barrel 24 leans against under Action of Gravity Field on the vibration damping layer of Anti-peep baffle 21 automatically, and concavees lens 8 are blocked by Anti-peep baffle 21.

Fig. 6: be dragline type band form supporting plate part.Among the figure: 4 expression lens barrels two, be called eyepiece arrangement of mirrors cylinder, dotted line is illustrated in below the supporting plate, two, the 13 expression rotating shafts of 12 expression bearings, 15 expression supporting plates, 17 expression forms, 25 expression stay cord noses are fixed on the

lens barrel

24,26 expression stay cords are connected on the stay cord nose, 27 expression springs, one end is connected on the supporting plate, and the other end is fixed on the lens barrel 24, the edge Anti-peep baffle on the 28 expression supporting plates, the vibration damping layer of 29 expression supporting plate upper limbs, the vibration damping layer of 30 expression supporting plate lower edges.Dotted portion represents to be blocked below supporting plate among the figure.Twice reflection eyepiece liftable of the described handle type of Fig. 1 security peephole, after removing handle 16, the described stay cord nose 25 of this Fig. 6, stay cord 26 are installed, with the supporting plate with form 17, bearing 2 12, rotating shaft 13, spring 27, are jointly consisted of dragline type liftable eyepiece group.With handle among Fig. 2-5 and with the Anti-peep baffle bottom parts of vibration damping layer with dragline type band form supporting plate Partial Replacement, with liftable eyepiece group, form twice reflection eyepiece liftable security peephole of dragline type.When using this door mirror, pulling stay cord 26 with concavees lens 8 from being slipped into form 17 by the position of blocking of Anti-peep baffle 28; When not using, unclamp stay cord 26, extension spring 27 pulling lens barrels 24 lean against Anti-peep baffle vibration damping layer 29 automatically, and concavees lens 8 are blocked by upper limb Anti-peep baffle 28.

Fig. 7: four secondary reflection eyepiece liftable security peepholes.Among the figure: 1 expression internal hilar plate, 2 expression external door panel, 3 expression lens barrels one are called the objective lens lens barrel, are installed in the peephole preformed hole, and are vertical with door-plate, and 4 expression lens barrels two are called eyepiece arrangement of mirrors cylinder, 5 expression biconcave lens.By two concavees lens groups that overlap, 6 expression convex lens, one, 7 expression convex lens two.8 expression concavees lens are called eyepiece, 9 expression level crossings one, 10 expression level crossings, two, 11 expression bearings, one, 12 expression bearing two,, 13 expression rotating shafts, 14 expression nuts, 15 expression supporting plates, 16 expression handles are fixed together with

lens barrel

24,17 expression forms, 18 expression handle grooves are openings of reserving at supporting plate, 19 expression level crossing fixed mounts, 20 are illustrated in the doorbell hole that lens barrel 24 is reserved, and 31 expression lens barrels three are called axial plane mirror arrangement of mirrors cylinder, the logical light mouth one of 32 expressions, at lens barrel 3 31 on lens barrel one 3 one side tube-walls, the logical light mouth two of 33 expressions, at lens barrel 1 on lens barrel 3 31 1 side tube-walls, 34 expression level crossings, three, 35 expression level crossings four.

Lens barrel 1, biconcave lens 5 and the convex lens one 6 common objective lens that form.Convex lens 27, concavees lens 8, level crossing 1 and level crossing 2 10 are fixed on lens barrel 24 inwalls, jointly form the eyepiece group.Lens barrel 3 31 is vertically fixed between security door internal hilar plate 1, the external door panel 2, injects the hole towards the opening of internal hilar plate 1 one ends over against the eyepiece group.Level crossing 3 34 and one group of periscope group of level crossing 4 35 common formations, level crossing 3 34 is installed in the inwall of lens barrel 3 31, lens barrel 3 31 to the opening of internal hilar plate 1 one ends as exit wound of bullet, over against eyepiece group entry portal, the line of level crossing 3 34 and the vertical door-plate at level crossing one 9 centers and two level crossings are angle at 45 ° all, the entry portal of close level crossing 4 35 1 ends is over against the objective lens open rearward end, the primary optical axis angle at 45 ° that level crossing 4 35 overlaps with the objective lens lens, the minute surface center is on primary optical axis.Bearing one 11 external diameters are connected with lens barrel 24, and internal diameter is connected with lens barrel 3 31, and bearing 2 12 external diameters are connected with supporting plate 15, and internal diameter is connected with rotating shaft 13.Lens barrel 3 31 center lines pass the center of level crossing 3 34, level crossing 1, overlap with the pivot center of bearing 1, bearing 2 12, and the ray of the primary optical axis that overlaps with the objective lens lens simultaneously behind the secondary reflection of level crossing 4 35, level crossing 3 34 overlaps.When the observer need to observe outdoors scene by this door mirror, the observer spurs handle 16, driving the eyepiece group rotates under supporting at bearing 1, bearing 2 12, make concavees lens 8 forward the height that is fit to observation to, level crossing 1, level crossing 2 10 all the time with door-plate angle at 45 °, scene becomes after by objective lens outdoors dwindles the upright virtual image, through the upright virtual image between objective lens and the eyepiece group, after the reflection of two groups of periscope groups and eyepiece group lens amplify in the eyepiece group, 8 observed persons see by concavees lens.

The described four secondary reflection eyepiece liftable security peepholes of Fig. 7 are handle type, with the common formation of part described in Fig. 2-5 handle type four secondary reflection eyepiece liftable security peepholes.With the described four secondary reflection eyepiece liftable security peepholes of Fig. 7 and the combination of the described dragline type band of Fig. 2-5 form supporting plate part, with handle and with the baffle plate bottom parts of vibration damping layer with dragline type band form supporting plate Partial Replacement, form four secondary reflection eyepiece liftable security peepholes of dragline type.

Fig. 8: the installation site schematic diagram of four secondary reflection eyepiece liftable security peepholes.Among the figure: 1 expression internal hilar plate, 2 expression external door panel, 4 expression lens barrels two are called eyepiece arrangement of mirrors cylinder, objective lens lens barrel installation site on the 36 expression security doors, 37 expression axial plane mirror arrangement of mirrors cylinder installation sites, 38 expression concavees lens, 8 positions.

Fig. 9: external secondary reflection security peephole.Among the figure:: 1 expression internal hilar plate, 2 expression external door panel, 3 expression lens barrels one are called the objective lens lens barrel, are installed in the peephole preformed hole, and are vertical with door-plate, and 4 expression lens barrels two are called eyepiece arrangement of mirrors cylinder, 5 expression biconcave lens.By two concavees lens groups that overlap, 6 expression convex lens, one, 7 expression convex lens two.8 expression concavees lens are called eyepiece, and biconcave lens 5, convex lens 1 are fixed on lens barrel one 3 inside, jointly consist of objective lens, and scene arrives the distance of convex lens 1 less than the focal length of convex lens 1 by the virtual image that biconcave lens 5 becomes outdoors.The focal length of convex lens 27 is greater than the focal length of concavees lens 8.10 expression level crossings two, 39 expression level crossings five, this two sides level crossing consists of one group of periscope group, and level crossing 2 10 is called ejaculation hole level crossing.Objective lens consists of external secondary reflection security peepholes jointly with the level crossing 2 10 that is fixed on the periscope group in the eyepiece arrangement of mirrors cylinder and level crossing 5 39, convex lens 27, concavees lens 8.Observe outdoors scene by this door mirror, avoid making observer's eyes and object lens at the same straight line, the concavees lens 8 as eyepiece can be fixed on the convenient correct position of observing, improve simultaneously safety.40 expression peep-proof lids are connected on the lens barrel 24, can open and close, and when not using peephole, block eyepiece, prevent from spying in the door by peephole outdoors.

Figure 10: built-in secondary reflection security peephole.Among the figure:: 1 expression internal hilar plate, 2 expression external door panel, 3 expression lens barrels one are called the objective lens lens barrel, are installed in the peephole preformed hole, and are vertical with door-plate, and 4 expression lens barrels two are called eyepiece arrangement of mirrors cylinder, 5 expression biconcave lens.By two concavees lens groups that overlap, 6 expression convex lens, one, 7 expression convex lens two.8 represent concavees lens, are called eyepiece, peephole lens barrel 1 and the biconcave lens 5 that is fixed on inwall, convex lens one 6 common formation objective lens, and scene arrives the distance of convex lens 1 less than the focal length of convex lens 1 by the virtual image that biconcave lens 5 becomes outdoors.40 expression peep-proofs lids, 41 expression lens barrels four, with side pipe and be fixed between internal hilar plate 1, the external door panel 2, convex lens 27 are installed in the side pipe inwall, 42 expression light holes three, on lens barrel 4 41 tube walls, 43 expression light holes four are on lens barrel one 3 walls.44 expression safety screens one.Be fixed on concavees lens 8 one ends on the door-plate 1,45 expression safety screens two are fixed on the object lens rear end on the door-plate 1,46 expression level crossings six, 47 expression level crossings seven.

Level crossing 6 46, level crossing 7 47 consist of one group of periscope group, level crossing 6 46 is called ejaculation hole level crossing, be fixed on the objective lens rear end, the minute surface center is on the primary optical axis that coincides together of objective lens lens, minute surface and primary optical axis angle at 45 °, level crossing 7 47 is called injects the hole level crossing, level crossing 6 46, level crossing 7 47 lines of centres are in reflected ray and the eyepiece arrangement of mirrors cylinder central lines of level crossing 6 46, the concavees lens 8 that eyepiece arrangement of mirrors cylinder is installed towards the openend of internal hilar plate 1 one ends, the empty focal length of concavees lens 8 is less than convex lens 27 focal lengths.Objective lens, periscope group, consist of built-in secondary reflection security peephole with the objective lens of light hole, lens barrel 4 41, lens barrel 4 41 interior fixing convex lens and concavees lens with side light hole and side pipe are common.Observe outdoors scene by this door mirror, avoid making observer's eyes and object lens at the same straight line, concavees lens 8 positions that can be used as eyepiece are fixed on the convenient proper height of observing, and convenient the observation improved safety simultaneously.

Claims

1. Eyepiece liftable security peephole is characterized in that: eyepiece group and objective lens combine by the periscope group, and the eyepiece group links together by bearing and front end lens barrel and supporting plate.

2. Eyepiece liftable security peephole according to claim 1 is characterized in that: the level crossing one (9) of convex lens two (7), concavees lens (8), periscope group, level crossing two (10) are fixed on lens barrel two (4) inwalls, jointly form the eyepiece group.

3. Eyepiece liftable security peephole according to claim 1, it is characterized in that: lens barrel three (31) is vertically fixed between security door internal hilar plate (1), the external door panel (2), opening over against internal hilar plate (1) one end is injected the hole over against the eyepiece group, the logical light mouth one (32) that lens barrel three (31) is reserved towards lens barrel one (3) one side, light mouth two (33) is led in reserving towards Tong Guangkou one (32) one side on lens barrel one (3) wall, and level crossing three (34) is installed in the inwall of lens barrel three (31)..

4. Eyepiece liftable security peephole according to claim 1, it is characterized in that: the periscope group that consists of eyepiece group part is fixed on the security door internal hilar plate towards an indoor side, perhaps be fixed between two door-plates, lens barrel one (3) open rearward end directly is connected with the entrance port of periscope group.

5. eyepiece liftable security peephole according to claim 1 is characterized in that: handle (16) is fixed together with lens barrel two (4).

6. eyepiece liftable security peephole according to claim 1, it is characterized in that: spring (27) one ends are connected on the supporting plate, and the other end is fixed on the lens barrel two (4).