CN109901282B

CN109901282B - Double-cylinder night vision device

Info

Publication number: CN109901282B
Application number: CN201910332390.5A
Authority: CN
Inventors: 杨融; 陈应凡
Original assignee: Tianjin Aer Gesi Technology Development Co ltd
Current assignee: Tianjin Aer Gesi Technology Development Co ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2024-01-02
Anticipated expiration: 2039-04-24
Also published as: CN109901282A

Abstract

The invention discloses a double-barrel night vision device which comprises a first lens barrel, a second lens barrel and a lens barrel position adjusting mechanism. The image intensifier is arranged in the main lens cone, the image intensifier positioning hole of the objective lens module and the image intensifier base of the eyepiece module are used together to fix the image intensifier in the main lens cone, the image intensifier is more stably installed and is not easy to damage, and the imaging effect is good; the first lens cone can rotate with the main machine shell through the first rotating shaft of the first lens cone rotating bracket, the second lens cone can rotate with the main machine shell through the second rotating shaft of the second lens cone rotating bracket, and when the night vision device is not used, the first lens cone and the second lens cone are directly turned over, so that the front view is not blocked; the first lens cone or the second lens cone is turned upwards, so that the night vision device can be quickly converted into a monocular night vision device for use; the invention has simple structure and convenient operation.

Description

Double-cylinder night vision device

Technical Field

The invention belongs to the technical field of night vision devices, and particularly relates to a double-cylinder night vision device.

Background

The night vision device is a night sighting device taking an image intensifier as a core device, and the night vision device does not use an infrared searchlight to illuminate a target when in work, and enhances visible images perceived by human eyes on a fluorescent screen through the image intensifier to observe and aim the target by utilizing light reflected by the target under weak illumination. The night vision device is divided into a single-cylinder night vision device and a double-cylinder night vision device, and compared with the single-cylinder night vision device, the double-cylinder night vision device has better observation effect and observation distance, and is more in line with the observation of human eyes in use. For military use, night vision devices are sometimes required to be worn on helmets, but when the night vision device is not in use, the two barrels can block the user's view. And the image intensifier is not fixed firmly in the main lens barrel, and is easy to damage and not stable so that the imaging effect is poor.

Disclosure of Invention

In order to solve the technical problems, the invention provides a binocular night vision device, wherein a first lens cone and a second lens cone are both rotatably connected with a main machine shell, the structure is simple, the operation is convenient, the view of a user can not be blocked, and an image intensifier is stably installed in the main lens cone.

A binocular night vision device comprising:

the two lens barrels are respectively a first lens barrel and a second lens barrel, each of the first lens barrel and the second lens barrel comprises a main lens barrel, an objective lens module arranged at one end of the main lens barrel, an eyepiece module arranged at the other end of the main lens barrel and an image intensifier arranged in the main lens barrel, an image intensifier positioning hole is formed in one end of the objective lens module extending into the main lens barrel, an image intensifier base is arranged at one end of the eyepiece module extending into the main lens barrel, and the image intensifier is arranged between the image intensifier positioning hole and the image intensifier base; the object lens module comprises an object lens cone, an object lens rotating base and an object lens limiting ring, wherein a first flange which is outwards is arranged at one end, close to the image intensifier, of the object lens rotating base, a second flange which is inwards is arranged in the object lens limiting ring, a positioning hole of the image intensifier is arranged in the object lens limiting ring, close to one side of the image intensifier, of the second flange, the object lens rotating base penetrates through the object lens limiting ring, the first flange is clamped on the second flange at one side of the positioning hole of the image intensifier, the other end of the image intensifier stretches into the positioning hole of the image intensifier, and the object lens limiting ring is detachably connected with one end of the main lens barrel;

the lens barrel position adjusting mechanism comprises a main machine shell, a first lens barrel rotating support and a second lens barrel rotating support, wherein the first lens barrel rotating support is rotationally connected with one end of the main machine shell, the second lens barrel rotating support is rotationally connected with the other end of the main machine shell, the lower end of the first lens barrel rotating support is connected with the main lens barrel of the first lens barrel, and the lower end of the second lens barrel rotating support is connected with the main lens barrel of the second lens barrel.

Above technical scheme is preferred, first lens cone swivel mount includes first connecting seat and first bottom plate, first connecting seat below is equipped with first connecting plate, follow on the first connecting seat the axial of first lens cone is equipped with first shaft hole, be equipped with first pivot in the first shaft hole, just the both ends of first pivot stretch out the both ends of first shaft hole.

Above technical scheme is preferred, the front portion of one end of host casing is equipped with first preceding mounting hole, the rear portion of one end of host casing can be dismantled and be connected with first lens cone runing rest baffle, be equipped with first back mounting hole on the first lens cone runing rest baffle, the both ends of first pivot stretch into respectively first preceding mounting hole with in the mounting hole behind the first.

Above technical scheme is preferred, be equipped with first adjustment hole on the first connecting seat, the axis of first adjustment hole with the axis in first shaft hole is perpendicular, and is located the below in first shaft hole, be equipped with first adjusting screw in the first adjustment hole, the both ends of first adjusting screw all stretch out first adjustment hole.

The above technical scheme is preferable, the second barrel rotating bracket has the same structure as the first barrel rotating bracket, and is symmetrically arranged relative to the central axis of the main casing.

According to the technical scheme, preferably, an objective lens group is arranged in the objective lens cone, and a first external thread is arranged on the outer wall of the objective lens cone, which is close to the main lens cone; the middle part of the objective rotating base is provided with a first internal thread, and the first external thread is in threaded connection with the first internal thread.

According to the technical scheme, the objective lens module further comprises an objective lens anti-skid pattern shell, the objective lens anti-skid pattern shell is sleeved on the portion, extending out of the main lens barrel, of the objective lens barrel and the objective lens rotating base, the objective lens anti-skid pattern shell is detachably connected with the objective lens barrel, and a gap is formed between the objective lens anti-skid pattern shell and the objective lens rotating base.

Above technical scheme is preferred, the objective module still includes objective spacing clamp ring, objective spacing clamp ring cover is established be close to on the objective anti-skidding line shell the one end of objective spacing clamp ring, be equipped with axial locating part on the objective spacing clamp ring, the second flange is kept away from in the objective spacing clamp ring of image intensifier one side is equipped with the arch, the locating part stretches into in the objective spacing clamp ring, and can with the arch produces the interference.

Preferably, the above technical solution, the eyepiece module includes:

an eyepiece lens barrel, wherein an eyepiece lens group is arranged in the eyepiece lens barrel;

the image intensifier base, the axial that is close to of image intensifier base is equipped with first boss, is used for stretching into in the recess of image intensifier, the axial of image intensifier base other end is equipped with the second boss, the hole cover of second boss is established the eyepiece barrel is close to the one end of image intensifier, just the side terminal surface of eyepiece barrel supports on the side terminal surface of second boss.

According to the technical scheme, preferably, the outer circumferential surface of the eyepiece barrel connected with the image intensifier base is provided with a clamping block, the second boss is correspondingly provided with a bayonet, and the clamping block is inserted into the bayonet.

The invention has the advantages and positive effects that: the invention provides a binocular night vision device, wherein an image intensifier is arranged in a main lens cone, an image intensifier positioning hole of an objective lens module and an image intensifier base of an eyepiece module are combined to fix the image intensifier in the main lens cone, the image intensifier is more stably installed and is not easy to damage, and the imaging effect is good; the first lens cone can rotate with the main machine shell through the first rotating shaft of the first lens cone rotating bracket, the second lens cone can rotate with the main machine shell through the second rotating shaft of the second lens cone rotating bracket, and when the night vision device is not used, the first lens cone and the second lens cone are directly turned over, so that the front view is not blocked; the first lens cone or the second lens cone is turned upwards, so that the night vision device can be quickly converted into a monocular night vision device for use; the invention has simple structure and convenient operation.

Drawings

FIG. 1 is a schematic diagram of a night vision device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a night vision device according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a first barrel rotating bracket according to an embodiment of the present invention;

FIG. 4 is a schematic view of a portion of an adjusting mechanism according to an embodiment of the present invention;

fig. 5 is a schematic view of a part of a structure of an adjusting mechanism provided by an embodiment of the present invention, in which a first lens barrel rotating bracket is omitted;

fig. 6 is a schematic diagram of a part of a second structure of the adjusting mechanism provided by the embodiment of the invention, in which the first lens barrel rotating bracket is omitted;

fig. 7 is a schematic structural view of a main barrel according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a first lens barrel according to an embodiment of the present invention;

fig. 9 is a schematic diagram showing a first lens barrel according to an embodiment of the present invention;

fig. 10 is a schematic diagram showing a second half cross-section of the first lens barrel according to an embodiment of the present invention;

FIG. 11 is a schematic diagram of an objective lens module according to an embodiment of the present invention;

FIG. 12 is a schematic diagram showing a half cross-section of an objective lens module according to an embodiment of the present invention;

FIG. 13 is a schematic diagram showing a second half-section of an objective lens module according to an embodiment of the present invention;

FIG. 14 is a schematic view of an objective lens stop collar according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of an objective lens limiting ferrule according to an embodiment of the present invention;

FIG. 16 is a schematic view of an objective lens anti-skid housing according to an embodiment of the present invention;

FIG. 17 is a schematic diagram of an eyepiece module according to an embodiment of the invention;

FIG. 18 is a semi-sectional view of an eyepiece module according to an embodiment of the invention;

FIG. 19 is a schematic view of an image intensifier base according to an embodiment of the present invention;

fig. 20 is a schematic structural view of an eyepiece barrel according to an embodiment of the present invention;

FIG. 21 is a schematic view of a first form of buckle according to an embodiment of the present invention;

fig. 22 is a schematic structural view of a second form of buckle according to an embodiment of the present invention.

Wherein: 1. a first barrel; 2. a second barrel; 3. a main housing; 4. a first barrel rotating bracket; 5. a second barrel rotating bracket; 6. a battery compartment bottom cover; 7. a battery compartment cover; 8. a buckle; 11. a main barrel; 12. an objective lens module; 13. an eyepiece module; 14. an image intensifier; 111. a connection surface; 121. an objective lens barrel; 122. an objective lens rotating base; 123. an objective lens limit ferrule; 124. an objective lens anti-skid pattern housing; 125. an objective window mirror assembly; 126. objective limiting clamping ring; 1221. a first flange; 1231. a second flange; 1232. positioning holes of the image intensifier; 1233. a protrusion; 1241. a slip preventing protrusion; 1242. an inner cavity; 1243. a mounting part; 1251. an objective window mirror housing; 1252. an objective window mirror glass; 1261. a clamping ring body; 1262. a notch; 1263. a threaded hole; 1264. a through hole; 1265. a fracture; 131. eyepiece barrel; 132. an image intensifier mount; 133. eyepiece screw thread fixed ring; 134. a diopter lens assembly; 1311. a clamping block; 1321. a first boss; 1322. a second boss; 13211. a bayonet; 1341. a diopter lens housing; 31. a first front mounting hole; 32. the first lens barrel rotates the support baffle; 33. a second front mounting hole; 34. the second lens barrel rotates the support baffle; 321. a baffle main body; 322. a first connection hole; 341. a second connection hole; 41. a first rotating shaft; 42. a first connection base; 43. a first connection base plate; 421. a first adjustment hole; 44. a first adjustment screw; 51. a second rotating shaft; 52. a second connecting seat; 53. a second connection base plate; 54. and a second adjusting screw.

Detailed Description

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in a specific case.

The invention will be described in detail below with reference to the drawings in connection with embodiments.

The present embodiment proposes a dual-barrel night vision device, as shown in fig. 1 and 2, including a first barrel 1 on the right side, a second barrel 2 on the left side, and a barrel position adjustment mechanism, wherein the first barrel 1 and the second barrel 2 are used for a user to observe a target object, the barrel position adjustment mechanism is used for connecting the first barrel 1 and the second barrel 2, and can adjust the installation angle of the first barrel 1 and the second barrel 2. The barrel position adjusting mechanism specifically includes a main casing 3, a first barrel rotating bracket 4, and a second barrel rotating bracket 5, wherein the main casing 3 plays a supporting connection role for each component. The first lens barrel rotating bracket 4 is used for connecting the first lens barrel 1 and enabling the first lens barrel 1 to rotate relative to the main machine shell 3, a first rotating shaft 41 is arranged on the first lens barrel rotating bracket 4, the axis of the first rotating shaft 41 is parallel to the axis of the first lens barrel 1, and two ends of the first rotating shaft 41 are rotationally connected with the main machine shell 3; the second barrel rotating bracket 5 is used for connecting the second barrel 2 and enabling the second barrel 2 to rotate relative to the main machine shell 3, the second barrel rotating bracket 5 is provided with a second rotating shaft 51, the axis of the second rotating shaft 51 is parallel to the axis of the second barrel 2, and two ends of the second rotating shaft 51 are rotatably connected with the main machine shell 3.

The first barrel 1 can be rotated with the main chassis 3 by the first rotation shaft 41 of the first barrel rotation bracket 4; the second lens barrel 2 can rotate with the main machine case 3 through the second rotating shaft 51 of the second lens barrel rotating bracket 5; when the night vision device is not used, the first lens barrel 1 and the second lens barrel 2 are directly turned over, so that the front view is not blocked; the first lens cone or the second lens cone is turned upwards, so that the night vision device can be quickly converted into a monocular night vision device for use; the embodiment has simple structure and convenient operation.

The first barrel rotating bracket 4 specifically includes a first connecting seat 42 and a first connecting bottom plate 43 disposed below the first connecting seat, a first shaft hole is disposed on the first connecting seat 42 along an axial direction of the first barrel 1, the first rotating shaft 41 is disposed in the first shaft hole, and two ends of the first rotating shaft 41 extend out of two ends of the first shaft hole, as shown in fig. 3.

The front portion of one end of the main casing 3 is provided with a first front mounting hole 31, the rear portion of one end of the main casing 3 is detachably connected with a first lens barrel rotating support baffle 32, the first lens barrel rotating support baffle 32 is provided with a first rear mounting hole, and two ends of a first rotating shaft 41 respectively extend into the first front mounting hole 31 and the first rear mounting hole. The structure of the first barrel rotating holder baffle 32 is shown in fig. 4, the first barrel rotating holder baffle 32 includes a baffle body 321, the baffle body 321 is in a long plate shape, one end of the baffle body 321 is provided with a vertical first connecting hole 322, the main casing 3 is correspondingly provided with a through hole, and the first barrel rotating holder 4 and the main casing 3 are connected through the through hole and the first connecting hole 322 by bolts. The other end of the baffle body 321 is provided with a first rear mounting hole. Optionally the axes of the first rear mounting hole and the first front mounting hole 31 coincide with the axis of the first shaft 41 for mounting the first shaft 41.

The second barrel rotating bracket 5 comprises a second connecting seat 52 and a second connecting bottom plate 53, a second connecting plate is arranged below the second connecting seat, a second shaft hole is formed in the second connecting seat 52 along the axial direction of the second barrel 2, a second rotating shaft 51 is arranged in the second shaft hole, and two ends of the second rotating shaft 51 extend out of two ends of the second shaft hole.

The front portion of the other end of the main casing 3 is provided with a second front mounting hole 33, the rear portion of the other end of the main casing 3 is detachably connected with a second lens barrel rotating support baffle 34, the second lens barrel rotating support baffle 34 is provided with a second rear mounting hole, and two ends of a second rotating shaft 51 respectively extend into the second front mounting hole 33 and the second rear mounting hole. The second barrel rotating bracket baffle 34 includes a baffle body 321, the baffle body 321 is in a long plate shape, one end of the baffle body 321 is provided with a vertical second connecting hole 341, the main casing 3 is correspondingly provided with a through hole, and the second barrel rotating bracket 5 and the main casing 3 are connected through the through hole and the second connecting hole 341 by bolts. The other end of the baffle body 321 is provided with a second rear mounting hole. Optionally, the axes of the second rear mounting hole and the second front mounting hole 33 coincide with the axis of the second rotating shaft 51 for mounting the second rotating shaft 51.

In order to adapt to different eye distances of different users, the first connecting seat 42 is provided with a first adjusting hole 421, the axis of the first adjusting hole 421 is perpendicular to the axis of the first shaft hole and is positioned below the first shaft hole, a first adjusting screw 44 is arranged in the first adjusting hole 421, and two ends of the first adjusting screw 44 extend out of the first adjusting hole 421. The outer end of the first adjusting screw 44 is provided with a pupil distance adjusting knob, so that the first adjusting screw 44 can be conveniently rotated; as shown in fig. 5 and 6, when in use, the inner end of the first adjusting screw 44 abuts against the side wall of the main chassis 3, and the distance between the inner end of the first adjusting screw 44 and the side wall of the main chassis 3 is adjusted by adjusting the length of the first adjusting screw 44 screwed into the first adjusting hole 421, so that the distance between the first barrel rotating bracket 4 and the connected first barrel 1 and the side wall of the main chassis 3 is adjusted, thereby realizing the left-right adjustment of the first barrel 1.

Similarly, a second adjusting hole is formed in the second connecting seat 52, the axis of the second adjusting hole is perpendicular to the axis of the second shaft hole and is located below the second shaft hole, a second adjusting screw 54 is arranged in the second adjusting hole, and two ends of the second adjusting screw 54 extend out of the second adjusting hole. The outer end of the second adjusting screw 54 is provided with a pupil distance adjusting knob, so that the second adjusting screw 54 can be conveniently rotated; the inner end of the second adjusting screw 54 extends out of the second adjusting hole, when in use, the inner end of the second adjusting screw 54 is abutted against the side wall of the main machine shell 3, and the distance between the inner end of the second adjusting screw 54 and the side wall of the main machine shell 3 is adjusted by adjusting the length of the second adjusting screw 54 screwed into the second adjusting hole, so that the distance between the second lens barrel rotating bracket 5 and the connected second lens barrel 2 and the side wall of the main machine shell 3 is adjusted, and the left and right adjustment of the second lens barrel 2 is realized. Optionally, the portion of the main chassis 3 in contact with the first and second adjustment screws 44 and 54 is provided with grooves.

The first lens barrel 1 and the second lens barrel 2 are independent relatively, the inner and outer parts are the same, and a horizontal connecting surface 111 is arranged on the main lens barrels of the first lens barrel 1 and the second lens barrel 2. Taking the main barrel 11 of the first barrel 1 as an example, as shown in fig. 7, a plurality of screw holes are provided on the connection surface 111. The lower surfaces of the first connecting bottom plate 43 and the second connecting bottom plate 53 are horizontal, a plurality of threaded holes are uniformly distributed on the first connecting bottom plate 43 and/or the second connecting bottom plate 53, and the threaded holes are correspondingly arranged with the threaded holes on the main lens barrel 11. The threaded holes may be 2, 3, 4 or more. The first connection base plate 43 is fastened with the first barrel 1 by screws and/or the second connection base plate 53 is fastened with the second barrel 2 by screws. The first connection bottom plate 43 and the first lens barrel 1 may be connected by a clamping manner, and the second connection bottom plate 53 and the second lens barrel 2 may be connected by a clamping manner.

As shown in fig. 8-10, the first lens barrel 1 and the second lens barrel 2 have the same structure, and the first lens barrel is taken as an example for illustration, the first lens barrel 1 and the second lens barrel 2 each comprise a main lens barrel 11, an objective lens module 12, an eyepiece lens module 13 and an image intensifier 14, the main lens barrel 11 is a hollow structure with two open ends, and in this embodiment, the size of the objective lens module 12 is larger than the size of the eyepiece lens module 13, so that the aperture ratio of one end of the main lens barrel 11 is larger than the aperture ratio of the other end. Wherein the main lens barrel 11 plays a supporting role for each component module; the objective lens module 12 is used for observing an object, the observed weak optical image is enhanced by the image enhancer 14, and the human eye observes the enhanced optical image through the eyepiece lens assembly. One end of the objective lens module 12 extends into one end of the main lens barrel 11, the objective lens module 12 is detachably connected with one end of the main lens barrel 11, and an image intensifier positioning hole 1232 is formed in one end of the objective lens module 12 extending into the main lens barrel 11; one end of the eyepiece module 13 extends into the other end of the main lens barrel 11, the eyepiece module 13 is detachably connected with the other end of the main lens barrel 11, an image intensifier base 132 is arranged at one end of the eyepiece module 13 extending into the main lens barrel 11, and a first boss 1321 is arranged on the image intensifier base 132 in the axial direction close to one end of the image intensifier 14; one end of the image intensifier 14 is provided with a groove, the image intensifier 14 is arranged in the main lens barrel 11, the first boss 1321 extends into the groove, and the other end of the image intensifier 14 extends into the image intensifier positioning hole 1232.

The objective lens module 12 and the eyepiece lens module 13 of the present embodiment are detachably connected with the main lens barrel 11, and the image intensifier 14 is disposed in the main lens barrel 11, and the image intensifier positioning hole 1232 of the objective lens module 12 and the image intensifier base 132 of the eyepiece lens module 13 cooperate to fix the image intensifier 14 in the main lens barrel 11; the embodiment has simple structure, each component module is detachably connected, and the quick assembly disassembly of each component module can be realized, so that the operation is convenient.

The detachable connection can be all clamped or threaded or partially clamped and the rest of the threaded connection, and in the embodiment, the detachable connection is all threaded.

The objective module 12, as shown in fig. 11-13, includes an objective lens barrel 121, an objective lens rotating base 122, and an objective lens stop collar 123. An objective lens group is arranged in the objective lens barrel 121, and a first external thread is arranged at a part, close to the main lens barrel 11, of the outer wall of the objective lens barrel 121; the middle part of the objective lens rotating base 122 is provided with a first internal thread, the first external thread is in threaded connection with the first internal thread, and the threaded connection enables the objective lens barrel 121 to rotate relative to the objective lens rotating base 122 so as to enable the target image to be clear; an outward first flange 1221 is provided at an end of objective lens turret 122 adjacent to image intensifier 14; an inward second flange 1231 is arranged in the objective lens limit collar 123, an image intensifier positioning hole 1232 is arranged in the objective lens limit collar 123, which is close to one side of the image intensifier 14, of the second flange 1231, the objective lens rotating base 122 penetrates through the objective lens limit collar 123, the first flange 1221 is clamped on the second flange 1231, which is close to the image intensifier positioning hole 1232, of the first flange 1221, the other end of the image intensifier 14 extends into the image intensifier positioning hole 1232, and the objective lens limit collar 123 is detachably connected with one end of the main lens barrel 11.

The objective lens barrel is used for installing an objective lens to observe a target object; the objective lens rotating base is used for supporting the objective lens barrel and can rotate relatively, so that the definition of the objective lens can be conveniently adjusted; the objective lens limit ferrule is used for realizing connection with the main lens barrel, and the arrangement of the first flange and the second flange plays a role in positioning the objective lens rotating base. All parts are detachably connected, the structure is simple, the rapid disassembly and assembly of all parts of the objective lens module can be realized, and the operation is convenient; and the positioning holes of the image intensifier are arranged, so that the image intensifier can be fixed, the image intensifier is stable in the main lens barrel, and the image intensifier has better image intensifier effect.

Specifically, in the present embodiment, a plurality of lenses of the objective lens group are sequentially installed inside the objective lens barrel 121. A portion of the outer wall of the objective lens barrel 121, which is close to the main lens barrel 11, is provided with a first external thread; the middle part of the objective lens rotating base 122 is provided with a first internal thread, and the first external thread is in threaded connection with the first internal thread; an outward first flange 1221 is provided at an end of objective lens turret 122 adjacent to image intensifier 14; the objective limiting collar 123 is provided with a second external thread, the inner wall of one end of the main lens barrel 11 is provided with a second internal thread, the second external thread is in threaded connection with the second internal thread, an inward second flange 1231 is arranged in the objective limiting collar 123, one side of the second flange 1231, which is close to the image intensifier 14, is provided with an image intensifier positioning hole 1232, the objective rotating base 122 penetrates through the objective limiting collar 123, the first flange 1221 is clamped on the second flange 1231 on one side of the image intensifier positioning hole 1232, and the other end of the image intensifier 14 extends into the image intensifier positioning hole 1232. The aperture of the image intensifier positioning hole 1232 is adapted to the outer diameter of the image intensifier 14. A seal groove is provided on the side end surface of the first flange 1221, and a seal ring is provided in the seal groove, so that the tightness of connection between the objective lens rotating base 122 and the objective lens limit collar 123 can be ensured. The outer wall of the objective lens barrel 121 is provided with sealing grooves on two sides of the first external thread, and sealing rings are arranged in the sealing grooves, so that the tightness of connection between the objective lens barrel 121 and the objective lens rotating base 122 can be ensured. The objective lens limit ring 123 is provided with a seal groove, and a seal ring is arranged in the seal groove, so that the tightness of connection between the objective lens limit ring 123 and the main lens barrel 11 can be ensured.

In order to facilitate rotating the objective lens barrel 121, the objective lens module 12 further includes an objective lens anti-skid housing 124, the objective lens anti-skid housing 124 is sleeved on the portions of the objective lens barrel 121 and the objective lens rotating base 122 extending out of the main lens barrel 11, the objective lens anti-skid housing 124 is detachably connected with the objective lens barrel 121, and a gap is provided between the objective lens anti-skid housing 124 and the objective lens rotating base 122. Specifically, the objective lens anti-skid housing 124 is provided with internal threads, the objective lens barrel 121 is correspondingly provided with external threads, and the objective lens anti-skid housing 124 and the objective lens barrel 121 are fastened through threads.

In order to protect the objective lens group in the objective lens barrel 121, the objective module 12 further includes an objective window lens assembly 125, and the objective window lens assembly 125 partially extends into the objective anti-skid housing 124 and is detachably connected to an end of the objective lens barrel 121 away from the image intensifier 14. Specifically, the objective window lens assembly 125 includes an objective window lens housing 1251 and an objective window lens glass 1252 disposed at the end of the objective window lens housing 1251, a cavity is disposed at the left end of the objective anti-skid housing 124, the objective window lens housing 1251 extends into the cavity, an extending portion of the objective window lens housing 1251 is provided with internal threads, an objective lens barrel 121 is provided with external threads, and the objective window lens housing 1251 extends into the cavity of the objective anti-skid housing 124 and is simultaneously in threaded connection with the objective lens barrel 121. A sealing ring is arranged between the objective lens anti-skid pattern housing 124 and the objective lens window housing 1251, so that the connection tightness of the objective lens anti-skid pattern housing and the objective lens window housing can be ensured.

In order to limit the rotation of the objective lens barrel 121 within 360 ° relative to the objective lens rotating base 122, the objective lens module 12 further includes an objective lens limiting clamp 126, and the objective lens limiting clamp 126 is sleeved on one end of the objective lens anti-skid housing 124, which is close to the objective lens limiting collar 123. As shown in fig. 14, the body of the objective lens limiting clamp 126 is a circular clamp body 1261, a fracture 1265 is provided on the clamp body 1261, and a gap 1262 and a threaded hole 1263 are provided on the clamp body 1261 at one side of the fracture 1265 for mounting a screw. Notch 1262 in this embodiment has angled first and second surfaces with vertical threaded hole 1263 provided in the first surface. To facilitate the tightening of the screw, the notch extends from one end face of the objective stop collar 126 to the other. The clamp body 1261 at the other side of the fracture 1265 is correspondingly provided with a threaded hole, and the objective limiting clamp 126 can be fixed on the objective anti-skid thread shell 124 by screwing. The objective lens limiting clamp ring 126 can also be provided with internal threads, and the objective lens anti-skid thread shell 124 is correspondingly provided with external threads, so that the two threads are fastened in a threaded connection. The objective limiting clamp ring 126 is provided with an axial through hole 1264, a limiting piece is arranged in the through hole 1264, as shown in fig. 15, a protrusion 1233 is arranged in the objective limiting ring 123 on one side of the second flange 1231 far away from the image intensifier 14, and the limiting piece extends into the objective limiting ring 123 and can interfere with the protrusion 1233. The cross section of the protrusion 1233 in this embodiment is rectangular, and extends from the left end surface of the second flange 1231 to the left end surface of the objective lens stop collar 123. The objective limiting clamp ring 126, the objective anti-skid pattern housing 124 and the objective window lens assembly 125 are connected with the objective lens barrel 121 into a whole, the objective anti-skid pattern housing 124 is rotated, the objective limiting clamp ring 126, the objective anti-skid pattern housing 124, the objective window lens assembly 125 and the objective lens barrel 121 jointly rotate relative to the objective lens rotating base 122, and interference is generated between the limiting piece and a protrusion 1233 in the objective limiting ring 123 after one rotation of the limiting piece, so that the objective lens barrel 121 is limited in 360 degrees relative to the objective lens rotating base 122.

The objective lens anti-skid case 124 has a specific structure as shown in fig. 16, wherein the middle part is provided with internal threads, and the outer surface is uniformly provided with anti-skid protrusions 1241. The left end of the internal thread is provided with an inner cavity 1242 for accommodating the objective lens barrel and the objective lens window assembly, and the inner wall of the objective lens anti-skid pattern housing at the right end of the internal thread is provided with an extended mounting part 1243 for mounting the objective lens limiting clamping ring 126.

As shown in fig. 17 and 18, the eyepiece module 13 includes an eyepiece barrel 131 and an image intensifier mount 132. An eyepiece lens group is arranged in the eyepiece barrel 131; the image intensifier mount 132 is used for mounting the image intensifier 14, as shown in fig. 19, a second boss 1322 is disposed on the axial direction of the end of the image intensifier mount 132 away from the image intensifier 14, an inner hole of the second boss 1322 is sleeved on the end of the eyepiece barrel 131 near the image intensifier 14, and a side end surface of the eyepiece barrel 131 abuts against a side end surface of the second boss 1322.

The eyepiece lens cone is used for installing an eyepiece lens so as to be beneficial for eyes to observe a target object; the axial that is close to one end of the image intensifier of image intensifier base is equipped with first boss for stretch into in the recess of image intensifier, can effectively restrict the circumference of image intensifier and rock, and the axial that is kept away from one end of the image intensifier of image intensifier base is equipped with the second boss for be connected with eyepiece lens cone. The first boss can restrict the image intensifier from shaking, so that the image intensifier is stable in the main lens barrel, the image intensifier has better image intensifier effect, and the service life of the image intensifier is prolonged.

In order to further improve the stability of the connection between the eyepiece barrel 131 and the image intensifier base 132, as shown in fig. 20, a clamping block 1311 is disposed on the outer circumferential surface of the connection between the eyepiece barrel 131 and the image intensifier base 132, a bayonet 13211 is correspondingly disposed on the second boss 1322, and the clamping block 1311 is inserted into the bayonet 13211. The cartridge 1311 may be 1, 2, 3, or more, and the bayonet 13211 is disposed corresponding to the cartridge 1311. In this embodiment, there are 3 locking blocks 1311, and correspondingly, 3 locking bays 13211.

The other end of the main lens barrel 11 is provided with internal threads, one end of the eyepiece lens barrel 131 far away from the image intensifier base 132 is sleeved with an eyepiece thread fixing ring 133, the eyepiece thread fixing ring 133 is provided with external threads, and the eyepiece thread fixing ring 133 is in threaded connection with the main lens barrel 11. Optionally, two sealing grooves are formed on the eyepiece barrel 131, and sealing rings are arranged in the sealing grooves, so that the tightness of connection between the eyepiece barrel 131 and the main barrel 11 can be ensured.

In consideration of the vision difference of eyes of the user when the user wears the glasses to view, the eyepiece module 13 further includes a diopter lens assembly 134, the diopter lens assembly 134 includes a diopter lens housing 1341 and a diopter lens disposed thereon, the diopter lens assembly 134 is covered outside the eyepiece thread fixing ring 133, the diopter lens housing 1341 is provided with external threads, and the diopter lens housing 1341 is in threaded connection with the main lens barrel 11.

In this embodiment, the battery module of the night vision device is disposed below the main housing 3 and between the first lens barrel 1 and the second lens barrel 2, and specifically, a battery compartment bottom cover 6 is connected below the main housing 3 through a screw, an opening at one end of the battery compartment bottom cover is used for placing a battery, and a battery compartment cover 7 is screwed at the opening. In order to prevent the battery compartment cover from being accidentally pulled out, the battery compartment cover can be sleeved with an anti-lost soft rubber fixing rope. In order to facilitate connection with the clamping device on the helmet, the top end of the main shell is provided with a clamp 8, the clamp is plate-shaped, the width of the clamp gradually increases from one end to the other end, the specific structure is in two forms, namely, fig. 21 and 22, and the shapes of the clamp are approximately the same, but the clamp is thicker in structure, wear-resistant, thinner in structure and lighter in weight.

The installation process of the embodiment: the first lens barrel 1 and the second lens barrel 2 are assembled respectively, specifically, an objective lens assembly is assembled, a sealing ring is installed on the objective lens barrel 121, an objective lens rotating base 122 is installed on the objective lens rotating base 122 in a threaded manner, a sealing ring is installed on the objective lens rotating base 122, one side, provided with an image intensifier positioning hole 1232, of the objective lens limiting ferrule 123 faces the objective lens rotating base 122 and is sleeved on the left side of the objective lens rotating base 122, and the left end face of a first flange 1221 of the objective lens rotating base 122 is in contact with the right end face of a second flange 1231 of the objective lens limiting ferrule 123; an objective lens anti-skid pattern shell 124 is arranged on an objective lens barrel 121, an objective lens window lens assembly 125 is arranged at the left end of the objective lens anti-skid pattern shell 124, an objective lens limiting clamping ring 126 is sleeved at the right end of the objective lens anti-skid pattern shell 124, a limiting piece in the objective lens limiting clamping ring 126 is adjusted to be contacted with the side surface of a boss 1233 in an objective lens limiting ring 123, a fracture of the objective lens limiting clamping ring 126 is screwed by a screw, and an image intensifier 14 part is extended into an image intensifier positioning hole 1232 of the objective lens limiting ring 123; assembling the eyepiece assembly such that the bayonet 13211 of the image intensifier mount 132 corresponds to the fixture block 1311 of the eyepiece barrel 131, and the second boss 1322 of the image intensifier mount 132 is clamped on the outer surface of the eyepiece barrel 131; an eyepiece thread fixing ring 133 is sleeved at the other end of the eyepiece barrel 131 opposite to the clamping block 1311, and a sealing ring is sleeved on a sealing groove of the eyepiece barrel 131; inserting the objective module 12 and the image intensifier 14 from the large end of the main lens barrel 11, and screwing the objective limit collar 123 and threads on the main lens barrel 11; the eyepiece module 13 is extended into the small end of the main lens barrel 11, the first boss 1321 of the objective lens rotating base 122 is extended into the groove of the image intensifier 14, and the screw thread on the eyepiece thread fixing ring 133 and the main lens barrel 11 are screwed; the diopter lens assembly 134 is threaded into the small end of the main barrel 11. The objective lens and the ocular lens are modularized, and all parts in all the modules are in threaded connection, so that the modules and all the parts are quickly, simply and conveniently assembled and disassembled, and the assembly and disassembly efficiency is effectively improved.

After the first lens barrel and the second lens barrel are assembled, the first lens barrel rotating bracket 4 and the first lens barrel 1 are fastened and connected by adopting screws; the front end of the first rotating shaft 41 stretches into the first front mounting hole 31 of the main machine shell 3, the rear end of the first rotating shaft 41 stretches into the first rear mounting hole of the first lens barrel rotating support baffle 32, and the first lens barrel rotating support baffle 32 is fastened on the main machine shell 3 by bolts; the second lens barrel rotating bracket 5 is fixedly connected with the second lens barrel 2 by adopting a screw; the front end of the second rotation shaft 51 is extended into the second front mounting hole 33 of the main chassis 3, the rear end of the second rotation shaft 51 is extended into the second rear mounting hole of the second barrel rotation bracket baffle 34, and the second barrel rotation bracket baffle 34 is fastened to the main chassis 3 by bolts.

The working procedure of this embodiment is: the night vision device is usually worn on a helmet, and the first lens barrel 1 and the second lens barrel 2 are rotatably connected with the main machine shell 3 through a first lens barrel rotating bracket 4 and a second lens barrel rotating bracket 5. The first barrel 1 and the second barrel 2 may be flipped up apart or flipped down together so as to maintain an optimal alignment position with the pupillary distance of the user's eyes. When the night vision device is not used, the first lens barrel 1 and the second lens barrel 2 are rotated to the upper side, so that the front view is not blocked; when in use, the first lens barrel 1 and the second lens barrel 2 are rotated to the lower side until the first adjusting screw 44 and the second adjusting screw 54 are in contact with the main machine shell 3; bringing together the independent first barrel and second barrel; the interpupillary distance adjusting knob can be rotated to adjust the interval between the first lens cone and the second lens cone. Taking the position of the first lens barrel 1 as an example, specifically, the first adjusting screw 44 is screwed, the inner end of the first adjusting screw 44 grows, the inner end of the first adjusting screw 44 is in contact with the main machine shell 3, the distance between the first adjusting screw 44 and the main machine shell 3 increases, the first lens barrel 1 rotates rightwards relative to the main machine shell 3 by a certain angle, and the first lens barrel 1 moves rightwards; the first adjusting screw 44 is unscrewed, the inner end of the first adjusting screw 44 is shortened, the distance between the first adjusting screw 44 and the main machine shell 3 is reduced, the inner end of the first adjusting screw 44 is abutted against the main machine shell 3, the first lens barrel 1 rotates leftwards relative to the main machine shell 3 by a certain angle, and the first lens barrel 1 moves leftwards, so that the distance of the first lens barrel 1 is adjusted by screwing the first adjusting screw 44 to adapt to the eye distance of a user. In the embodiment, the distance between the first lens barrel and the second lens barrel can be close by rotating the pupil distance adjusting knob anticlockwise, and the distance between the first lens barrel and the second lens barrel can be far by rotating the pupil distance adjusting knob clockwise. In addition, the binocular night vision device can be used by quickly converting the binocular mode of the binocular night vision device into the monocular mode. The night vision device is connected to the helmet overturning bracket, and the first lens barrel or the second lens barrel on any side of the left side and the right side is upwards turned over. When the parts in the first lens cone or the second lens cone are disassembled, as all the parts are in threaded connection, the quick disassembly can be realized by only screwing corresponding threads.

The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.

Claims

1. A binocular night vision device, comprising:

2. The binocular night vision device of claim 1, wherein: the first lens cone rotating support comprises a first connecting seat and a first connecting bottom plate, the first connecting bottom plate is arranged below the first connecting seat, a first shaft hole is formed in the first connecting seat along the axial direction of the first lens cone, a first rotating shaft is arranged in the first shaft hole, and two ends of the first rotating shaft extend out of two ends of the first shaft hole.

3. The binocular night vision device of claim 2, wherein: the front portion of one end of the main casing is provided with a first front mounting hole, the rear portion of one end of the main casing is detachably connected with a first lens barrel rotating support baffle, a first rear mounting hole is formed in the first lens barrel rotating support baffle, and two ends of a first rotating shaft respectively extend into the first front mounting hole and the first rear mounting hole.

4. The binocular night vision device of claim 2, wherein: the first connecting seat is provided with a first adjusting hole, the axis of the first adjusting hole is perpendicular to the axis of the first shaft hole and is positioned below the first shaft hole, a first adjusting screw is arranged in the first adjusting hole, and two ends of the first adjusting screw extend out of the first adjusting hole.

5. The binocular night vision device of claim 2, wherein: the second lens barrel rotating bracket has the same structure as the first lens barrel rotating bracket and is symmetrically arranged relative to the central axis of the main machine shell; the second lens barrel rotating bracket comprises a second connecting seat and a second connecting bottom plate, the second connecting bottom plate is arranged below the second connecting seat, a second shaft hole is formed in the second connecting seat along the axial direction of the second lens barrel, a second rotating shaft is arranged in the second shaft hole, and two ends of the second rotating shaft extend out of two ends of the second shaft hole; the main lens barrels of the first lens barrel and the second lens barrel are provided with horizontal connecting surfaces, the connecting surfaces of the first connecting bottom plate and the first lens barrel are fastened through screws, and/or the connecting surfaces of the second connecting bottom plate and the second lens barrel are fastened through screws.

6. The binocular night vision device of claim 5, wherein: an objective lens group is arranged in the objective lens barrel, and a first external thread is arranged at a part, close to the main lens barrel, of the outer wall of the objective lens barrel; the middle part of the objective rotating base is provided with a first internal thread, and the first external thread is in threaded connection with the first internal thread.

7. The binocular night vision device of claim 6, wherein: the objective lens module further comprises an objective lens anti-skid pattern shell, the objective lens anti-skid pattern shell is sleeved on the portion, extending out of the main lens barrel, of the objective lens barrel and the objective lens rotating base, the objective lens anti-skid pattern shell is detachably connected with the objective lens barrel, and a gap is formed between the objective lens anti-skid pattern shell and the objective lens rotating base.

8. The binocular night vision device of claim 6, wherein: the objective module further comprises an objective limiting clamp ring, the objective limiting clamp ring is sleeved on the objective anti-skid pattern shell and is close to one end of the objective limiting clamp ring, an axial limiting part is arranged on the objective limiting clamp ring, a bulge is arranged in the objective limiting clamp ring on one side of the second flange, which is far away from the image intensifier, and the limiting part stretches into the objective limiting clamp ring and can interfere with the bulge.

9. The binocular night vision device of claim 1, wherein: the eyepiece module includes:

10. The binocular night vision device of claim 9, wherein: the eyepiece barrel is provided with a clamping block on the outer circumferential surface connected with the image intensifier base, a bayonet is correspondingly arranged on the second boss, and the clamping block is inserted into the bayonet.