Rapid interpupillary distance adjusting mechanism for binocular night vision goggles

Abstract

The utility model discloses a rapid interpupillary distance adjusting mechanism for binocular night vision goggles, and belongs to the field of interpupillary distance adjusting mechanisms for night vision goggles. The interpupillary distance adjusting mechanism is composed of an eye distance adjusting support, a left night vision goggle, a right night vision goggle, an eccentric sleeve, a left interpupillary distance screw, a right interpupillary distance screw, a coupler, an interpupillary distance adjusting hand wheel, a hand wheel screw and a coupler screw. When the interpupillary distance of the binocular night vision goggles is adjusted, the left night vision goggles and the right night vision goggles can be close to or away from each other by rotating the interpupillary distance adjusting hand wheel, namely the interpupillary distance is increased or reduced. The device is simple in structure, can achieve the quick adjustment of the pupil distance of the binocular night vision goggles, and effectively improves the operation convenience of the night vision goggles.

Description

Technical Field

[0001] The utility model relates to a pupil distance adjustment mechanism for night vision goggles, in particular to a fast pupil distance adjustment mechanism for binocular night vision goggles. Background Art

[0002] Double-tube binocular night vision goggles are dual-channel auxiliary observation tools based on night vision technology and made with the help of micro-photoelectric imagers. Since the interpupillary distance of different operators is different, the dual-channel night vision goggles need to adjust the interpupillary distance in a targeted manner when in use, so that the interpupillary distance of the night vision goggles is adapted to the interpupillary distance of the operator to form a combined image field of view for observation. For example, CN209400797U provides an eye distance and pitch adjustment mechanism for night vision goggles. The operator rotates the screws on the left and right sides to adjust the size of the eye distance to meet the needs of users with different eye distances, but does not involve the rapid adjustment of the interpupillary distance. For example, CN210872850U provides a binocular observation device and a binocular interpupillary distance adjustment mechanism, which is easy to operate when adjusting the interpupillary distance, but has a complex structure and is not suitable for night vision goggles. Utility Model Content

[0003] The utility model aims to provide a fast pupil distance adjustment mechanism for binocular night vision goggles, which can realize the fast adjustment of the pupil distance of the binocular night vision goggles and effectively increase the convenience of night vision goggles operation.

[0004] The technical solution of the utility model is:

[0005] A fast pupil distance adjustment mechanism for binocular night vision goggles consists of an eye distance adjustment bracket, a left night vision goggles, a right night vision goggles, an eccentric sleeve, a left pupil distance screw, a right pupil distance screw, a coupling, a pupil distance adjustment hand wheel, a hand wheel screw and a coupling screw.

[0006] The eccentric sleeve is connected to the eye distance adjustment bracket through a through hole, the left pupil distance screw is connected to the left through hole of the eccentric sleeve, the right pupil distance screw is connected to the right side of the eccentric sleeve, the left pupil distance screw is connected to the left night vision goggle through a left-handed thread, the right pupil distance screw is connected to the right night vision goggle through a right-handed thread, the left pupil distance screw and the right pupil distance screw are connected as a whole through a coupling and fastened with a screw. The pupil distance adjustment hand wheel is fixed to the left pupil distance screw through a hand wheel screw.

[0007] The working principle and beneficial effects of the utility model are as follows:

[0008] The left pupil distance screw of the night vision goggles is connected to the left night vision goggles through a left-handed thread, the right pupil distance screw is connected to the right night vision goggles through a right-handed thread, and the left and right pupil distance screws are connected as a whole through a coupling. When the pupil distance adjustment hand wheel drives the left and right pupil distance screws to rotate, the left and right night vision goggles will be closer to or farther from the center, achieving the effect of pupil distance adjustment. The utility model has a simple structure, can realize the rapid adjustment of the pupil distance of binocular night vision goggles, and effectively increases the convenience of night vision goggles operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is the overall effect diagram of the utility model. Figure 1 Middle: 1-eye distance adjustment bracket, 2-left night vision goggles, 3-right night vision goggles, 7-eccentric sleeve.

[0010] Figure 2 It is a cross-sectional view of the utility model. Figure 2 Middle: 4-left pupillary distance screw, 5-right pupillary distance screw, 6-coupling, 9-handwheel screw.

[0011] Figure 3 This is a schematic diagram of the pupil distance adjustment structure of the utility model. Figure 3 Middle: 8-pupillary distance adjustment hand wheel, 10-coupling screw. DETAILED DESCRIPTION

[0012] The specific implementation of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0013] Reference Figure 1 , 2 The utility model discloses a rapid pupil distance adjustment mechanism for binocular night vision goggles, which is composed of a pupil distance adjustment bracket 1, a left night vision goggles 2, a right night vision goggles 3, an eccentric sleeve 7, a left pupil distance screw 4, a right pupil distance screw 5, a coupling 6, a pupil distance adjustment hand wheel 8, a hand wheel screw 9 and a coupling screw 10.

[0014] The eccentric sleeve 7 is connected to the eye distance adjustment bracket 1 through a through hole, the left pupil distance screw 4 is connected to the left through hole of the eccentric sleeve 7, the right pupil distance screw 5 is connected to the right side of the eccentric sleeve 7, the left pupil distance screw 7 is connected to the left night vision goggles 2 through a left-handed thread, the right pupil distance screw 5 is connected to the right night vision goggles 3 through a right-handed thread, the left pupil distance screw 4 and the right pupil distance screw 5 are connected as a whole through a coupling 6, and are fastened by a coupling screw 9. The pupil distance adjustment hand wheel 8 is fixed to the left pupil distance screw 4 through a hand wheel screw 10.

[0015] The coupling 6 has two screw holes on the left and right sides, respectively, and the left pupil distance screw 4 and the right pupil distance screw 5 are fixed as a whole through the coupling screws 10.

[0016] The working principle of the utility model is:

[0017] When the left pupil distance screw 4 and the right pupil distance screw 5 are connected by the coupling 6 , the left pupil distance screw 4 and the right pupil distance screw 5 are fixed as a whole.

[0018] When the interpupillary distance adjustment hand wheel 8 is rotated counterclockwise, the left interpupillary distance screw 4 and the right interpupillary distance screw 5 will be driven to rotate counterclockwise at the same time. At this time, the left night vision goggles 2 connected to the left interpupillary distance screw 4 by the left-handed thread will move in the direction away from the center of the night vision goggles. At the same time, the right night vision goggles 3 connected to the right interpupillary distance screw 5 by the right-handed thread will also move in the direction away from the center of the night vision goggles. At this time, the interpupillary distance of the night vision goggles is increased.

[0019] Correspondingly, when the pupil distance adjustment hand wheel 8 is rotated clockwise, the left pupil distance screw 4 and the right pupil distance screw 5 will be driven to rotate clockwise at the same time. At this time, the left night vision goggles 2 connected to the left pupil distance screw 4 by a left-handed thread will move toward the direction close to the center of the night vision goggles. At the same time, the right night vision goggles 3 connected to the right pupil distance screw 5 by a right-handed thread will also move toward the direction close to the center of the night vision goggles. At this time, the pupil distance of the night vision goggles is reduced.

[0020] The device can also reduce the pupil distance counterclockwise and increase the pupil distance clockwise by changing the thread of the left pupil distance screw 4 to right-handed and the thread of the right pupil distance screw 5 to left-handed.

[0021] When the interpupillary distance adjustment hand wheel 8 is rotated counterclockwise, the left interpupillary distance screw 4 and the right interpupillary distance screw 5 will be driven to rotate counterclockwise at the same time. At this time, the left night vision goggles 2 connected to the left interpupillary distance screw 4 by a right-handed thread will move toward the direction close to the center of the night vision goggles. At the same time, the right night vision goggles 3 connected to the right interpupillary distance screw 5 by a left-handed thread will also move toward the direction close to the center of the night vision goggles. At this time, the interpupillary distance of the night vision goggles is reduced.

[0022] Correspondingly, when the interpupillary distance adjustment hand wheel 8 is rotated clockwise, the left interpupillary distance screw 4 and the right interpupillary distance screw 5 will be driven to rotate clockwise at the same time. At this time, the left night vision goggles 2 connected to the left interpupillary distance screw 4 by a right-handed thread will move in the direction away from the center of the night vision goggles. At the same time, the right night vision goggles 3 connected to the right interpupillary distance screw 5 by a left-handed thread will also move in the direction away from the center of the night vision goggles. At this time, the interpupillary distance of the night vision goggles is increased.

Claims

1. A rapid pupil distance adjustment mechanism for binocular night vision goggles, characterized in that: It is composed of an eye distance adjustment bracket (1), a left night vision goggle (2), a right night vision goggle (3), an eccentric sleeve (7), a left pupil distance screw (4), a right pupil distance screw (5), a coupling (6), a pupil distance adjustment hand wheel (8), a hand wheel screw (9) and a coupling screw (10); The eccentric sleeve (7) is connected to the eye distance adjustment bracket (1) through a through hole, the left pupil distance screw (4) is connected to the left through hole of the eccentric sleeve (7), the right pupil distance screw (5) is connected to the right side of the eccentric sleeve (7), the left pupil distance screw (4) is connected to the left night vision goggles (2) through a thread, the right pupil distance screw (5) is connected to the right night vision goggles (3) through a thread, the left pupil distance screw (4) and the right pupil distance screw (5) are connected to form a whole through a coupling (6) and are fastened by a coupling screw (10); the pupil distance adjustment hand wheel (8) is fixed to the left pupil distance screw (4) through a hand wheel screw (9).

2. The rapid pupil distance adjustment mechanism for binocular night vision goggles according to claim 1, characterized in that: The left pupil distance screw (4) and the left night vision goggles (2) are connected by a left-hand thread, and the right pupil distance screw (5) and the right night vision goggles (3) are connected by a right-hand thread. The pupil distance is reduced by rotating the hand wheel clockwise, and increased by rotating the hand wheel counterclockwise.

3. The rapid pupil distance adjustment mechanism for binocular night vision goggles according to claim 1, characterized in that: The thread connecting the left pupil distance screw (4) and the left night vision goggles (2) is right-handed, and the thread connecting the right pupil distance screw (5) and the right night vision goggles (3) is left-handed. Clockwise rotation increases the pupil distance, while counterclockwise rotation decreases the pupil distance.

4. The rapid pupil distance adjustment mechanism for binocular night vision goggles according to any one of claims 1 to 3, characterized in that: The coupling (6) has two screw holes on the left and right sides respectively, and the left pupil distance screw rod (4) and the right pupil distance screw rod (5) are fixed together by the coupling screws (10).

Images