CN112433357A

CN112433357A - Binocular focusing structure

Info

Publication number: CN112433357A
Application number: CN202011202107.6A
Authority: CN
Inventors: 张伟; 康志学
Original assignee: Xiangyang Youbo Photoelectric Co ltd
Current assignee: Xiangyang Youbo Photoelectric Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-03-02

Abstract

The invention relates to the technical field of telescopes, in particular to a binocular focusing structure which comprises two main lens cones, wherein the two main lens cones are arranged in parallel, two mutually parallel connecting arms are fixedly installed on one sides of the two main lens cones, a rotating gear is rotatably installed between the two connecting arms on the main lens cones, a brake gear is fixedly installed between the connecting arm on one main lens cone and the connecting arm on the other main lens cone, eyepiece cones are installed at one ends of the two main lens cones in a threaded mode, objective lenses are fixedly installed in the eyepiece cones, objective lenses are fixedly installed in the objective lenses at the other ends of the two main lens cones, focusing lenses are installed in the two main lens cones, and the focusing lenses can slide in the corresponding main lens cones. The invention adjusts the corresponding focusing lens to a proper position by rotating the adjusting cap on the other main lens cone, so that the focal lengths in the two lens cones can be adjusted well, and errors can not occur in the focal lengths in the two different lens cones.

Description

Binocular focusing structure

Technical Field

The invention relates to the technical field of telescopes, in particular to a binocular focusing structure.

Background

The optical instrument is formed by combining a single optical device or a plurality of optical devices, and the optical instrument is mainly divided into two categories, one category is an optical instrument for imaging, such as a slide projector, a camera and the like; another is virtual imaging optical instruments such as telescopes, microscopes, loupes, etc.; the telescope is an optical instrument for observing a remote object by using a lens or a reflector and other optical devices, and comprises a binocular telescope and a monocular, wherein the focusing structure of the existing binocular comprises a focusing screw and a focusing lens, the focusing lens is driven to move in a lens barrel through the focusing screw inserted into the lens barrel, so that the distance between the focusing lens and an eyepiece is adjusted to realize the focal length adjustment of the telescope, and the components of the structure are poor in connection stability, easy to damage the optical axis accuracy of the focusing lens by external factors, influence the normal work of the telescope and not beneficial to the use of people; in addition, when the existing binoculars are adjusted, two focusing lenses are always moved simultaneously, and the eyepieces in the two binoculars and the focusing lenses cannot achieve the complete consistency of optical performance, so that certain errors exist in the focusing results in the two lens barrels.

Disclosure of Invention

The invention aims to solve the problem that focusing errors exist when two focusing lenses move simultaneously in the prior art, and provides a focusing structure of binoculars.

In order to achieve the purpose, the invention adopts the following technical scheme:

a binocular focusing structure is designed and comprises two main lens cones which are arranged in parallel, wherein two mutually parallel connecting arms are fixedly mounted on one sides of the two main lens cones, rotating gears are rotatably mounted between the two connecting arms on the main lens cones, a brake gear is fixedly mounted between one connecting arm on one main lens cone and the connecting arm on the other main lens cone, two sides of the brake gear are respectively meshed with the corresponding rotating gears, eyepiece cones are mounted at one end threads of the two main lens cones, eyepieces are fixedly mounted in the eyepiece cones, objective lenses are fixedly mounted at the other ends of the two main lens cones, focusing lenses are fixedly mounted in the objective lens cones, focusing lenses are mounted in the two main lens cones, and the focusing lenses can slide in the corresponding main lens cones.

Preferably, adjustment mechanism is installed to one side of focusing mirror, adjustment mechanism includes the screw thread seat, screw thread seat fixed mounting is on the lateral wall of focusing mirror, set up the spout that matches with the screw thread seat on the inner wall of main lens cone, the screw thread seat can slide in the spout, the inside rotation of spout installs the lead screw, the lead screw runs through the screw thread seat, and with screw thread seat threaded connection, the one end fixed mounting of lead screw has first gear.

Preferably, a fixing seat is fixedly mounted on the outer side wall of the main lens barrel, a handle is fixedly mounted on the outer side of the fixing seat, and a transmission mechanism is mounted inside the fixing seat.

Preferably, the transmission mechanism comprises a second gear, the second gear is rotatably mounted in the fixed seat through a rotating shaft, and the second gear is meshed with the first gear.

Preferably, a first bevel gear is coaxially and fixedly mounted at one end of the second gear, a second bevel gear is rotatably mounted inside the fixing seat and is meshed with the first bevel gear, an adjusting cap is coaxially and fixedly mounted at the top end of the second bevel gear, and the adjusting cap is located on the outer side of the fixing seat.

The binocular focusing structure provided by the invention has the beneficial effects that:

1. the angle between the two main lens cones is changed by rotating the two rotating gears, so that the observation and use requirements of a user are met, the two rotating gears roll along the brake gear in the rotating process, and meanwhile, the brake gear can limit the rotating gears, so that the rotating gears are prevented from transmitting by self under the action of gravity;

2. the adjusting caps on the two main lens cones are respectively rotated to adjust the corresponding focusing lenses to proper positions, so that the focal lengths in the two lens cones can be well adjusted, and errors can not occur in the focal lengths in the two different lens cones.

Drawings

Fig. 1 is a first structural schematic diagram of a focusing structure of binoculars according to the present invention;

fig. 2 is a structural schematic diagram of a focusing structure of binoculars according to the present invention;

fig. 3 is a partial structural schematic diagram of a focusing structure of binoculars according to the present invention;

fig. 4 is a partial sectional view of a focusing structure of binoculars according to the present invention;

FIG. 5 is a schematic structural diagram of an adjusting mechanism of a focusing structure of binoculars according to the present invention;

in the figure: the device comprises a main lens barrel 1, a connecting arm 2, a rotating gear 3, a braking gear 4, an eyepiece barrel 5, an objective lens barrel 6, an eyepiece 7, an objective lens 8, a fixed seat 9, a handle 10, a focusing lens 11, an adjusting mechanism 12, a sliding groove 121, a threaded seat 122, a screw rod 123, a first gear 124, a transmission mechanism 13, a second gear 131, a first bevel gear 132, a second bevel gear 133 and an adjusting cap 134.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, a binocular focusing structure comprises two main lens barrels 1, the two main lens barrels 1 are arranged in parallel, two mutually parallel connecting arms 2 are fixedly installed at one side of each of the two main lens barrels 1, a rotating gear 3 is rotatably installed between the two connecting arms 2 on the main lens barrels 1, a brake gear 4 is fixedly arranged between a connecting arm 2 on one main lens barrel 1 and a connecting arm 2 on the other main lens barrel 1, two sides of the brake gear 4 are respectively meshed with corresponding rotating gears 3, one end of each of the two main lens barrels 1 is provided with an eyepiece barrel 5 in a threaded manner, an eyepiece 7 is fixedly arranged in each eyepiece barrel 5, the other end of each main lens barrel 1 is fixedly provided with an objective lens barrel 6, an objective lens 8 is fixedly arranged in each objective lens barrel 6, a focusing lens 11 is arranged in each main lens barrel 1, and each focusing lens 11 can slide in the corresponding main lens barrel 1; thereby change the angle between two main lens barrels 1 through rotating two rotating gear 3 to satisfy user's observation operation requirement, two rotating gear 3 rotate the in-process and can roll along brake gear 4, and brake gear 4 can restrict rotating gear 3 simultaneously, avoids rotating gear 3 to pass by oneself under the effect of gravity.

An adjusting mechanism 12 is installed on one side of the focusing mirror 11, the adjusting mechanism 12 comprises a threaded seat 122, the threaded seat 122 is fixedly installed on the side wall of the focusing mirror 11, a sliding groove 121 matched with the threaded seat 122 is formed in the inner wall of the main lens barrel 1, the threaded seat 122 can slide in the sliding groove 121, a screw rod 123 is rotatably installed inside the sliding groove 121, the screw rod 123 penetrates through the threaded seat 122 and is in threaded connection with the threaded seat 122, and a first gear 124 is fixedly installed at one end of the screw rod 123; the focusing lens 11 can slide by sliding the screw base 122 in the slide groove 121, and the distance between the focusing lens 11 and the corresponding eyepiece 7 is changed, which realizes the focusing operation of a single main barrel 1.

Fixed mounting has fixing base 9 on the lateral wall of main barrel 1, the outside fixed mounting of fixing base 9 has handle 10, fixing base 9 internally mounted has drive mechanism 13, drive mechanism 13 includes second gear 131, second gear 131 rotates through the pivot and installs in fixing base 9, second gear 131 and first gear 124 intermeshing, the coaxial fixed mounting in one end of second gear 131 has first bevel gear 132, fixing base 9 internally mounted has second bevel gear 133, second bevel gear 133 and first bevel gear 132 intermeshing, the coaxial fixed mounting in top of second bevel gear 133 has regulation cap 134, regulation cap 134 is located the outside of fixing base 9.

The working principle is as follows: during focusing, firstly, an adjusting cap 134 on one of the main lens barrels 1 is rotated to enable the second bevel gear 133 to rotate, the second bevel gear 133 is meshed with the first bevel gear 132, so the first bevel gear 132 drives the second gear 131 to rotate, and the first gear 124 drives the screw rod 123 to rotate due to the mutual meshing of the second gear 131 and the first gear 124, so that the threaded seat 122 slides in the sliding groove 121 and enters the focusing lens 11 to be adjusted to a proper position; similarly, the adjusting cap 134 of the other main barrel 1 is rotated to adjust the corresponding focusing lens 11 to a proper position, so that the focal lengths in the two barrels can be adjusted, and the focal lengths in the two different barrels can not have errors.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A binocular focusing structure comprises two main lens barrels (1), wherein the two main lens barrels (1) are arranged in parallel, and two mutually parallel connecting arms (2) are fixedly installed on one sides of the two main lens barrels (1), the binocular focusing structure is characterized in that a rotating gear (3) is rotatably installed between the two connecting arms (2) on the main lens barrels (1), a brake gear (4) is fixedly installed between the connecting arm (2) on one main lens barrel (1) and the connecting arm (2) on the other main lens barrel (1), two sides of the brake gear (4) are respectively meshed with the corresponding rotating gear (3), an eyepiece barrel (5) is installed at one end of each of the two main lens barrels (1) through threads, an eyepiece (7) is fixedly installed in each eyepiece barrel (5), and an objective lens barrel (6) is fixedly installed at the other end of each of the two main lens barrels (1), an objective lens (8) is fixedly arranged in the objective lens barrel (6), focusing lenses (11) are arranged in the two main lens barrels (1), and the focusing lenses (11) can slide in the corresponding main lens barrels (1).

2. The binocular focusing structure of claim 1, wherein an adjusting mechanism (12) is mounted on one side of the focusing lens (11), the adjusting mechanism (12) comprises a threaded seat (122), the threaded seat (122) is fixedly mounted on a side wall of the focusing lens (11), a sliding groove (121) matched with the threaded seat (122) is formed in an inner wall of the main lens barrel (1), the threaded seat (122) can slide in the sliding groove (121), a screw rod (123) is rotatably mounted inside the sliding groove (121), the screw rod (123) penetrates through the threaded seat (122) and is in threaded connection with the threaded seat (122), and a first gear (124) is fixedly mounted at one end of the screw rod (123).

3. The binocular focusing structure according to claim 2, wherein a fixed seat (9) is fixedly mounted on an outer side wall of the main lens barrel (1), a handle (10) is fixedly mounted on an outer side of the fixed seat (9), and a transmission mechanism (13) is mounted inside the fixed seat (9).

4. A binocular focusing arrangement according to claim 3, wherein the transmission mechanism (13) comprises a second gear wheel (131), the second gear wheel (131) being rotatably mounted in the holder (9) via a shaft, the second gear wheel (131) being in mesh with the first gear wheel (124).

5. The binocular focusing structure of claim 4, wherein a first bevel gear (132) is coaxially and fixedly mounted at one end of the second gear (131), a second bevel gear (133) is rotatably mounted inside the fixed base (9), the second bevel gear (133) is meshed with the first bevel gear (132), an adjusting cap (134) is coaxially and fixedly mounted at the top end of the second bevel gear (133), and the adjusting cap (134) is located outside the fixed base (9).