CN213069332U

CN213069332U - Binocular focusing structure

Info

Publication number: CN213069332U
Application number: CN202022297791.2U
Authority: CN
Inventors: 吕辉
Original assignee: Xiaogan Xinglang Photoelectric Technology Co ltd
Current assignee: Xiaogan Xinglang Photoelectric Technology Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-04-27
Anticipated expiration: 2030-10-15

Abstract

The utility model discloses a binocular focusing structure, including the axis, centraxonial both sides all articulate there is objective, and all pegs graft at the top of two objective has the eyepiece, centraxonial top threaded connection has the thread bush, and the outer wall fixedly connected with knob at thread bush top, the outer wall fixedly connected with sliding ring at thread bush middle part, and the outer wall at sliding ring middle part has seted up the ring channel, and the inside of ring channel is provided with two steel balls, two the equal fixedly connected with mount in one side that the steel ball was kept away from mutually, and two mounts respectively with two eyepiece fixed connection, two the fixed ring of the equal fixedly connected with of one end that the mount was kept away from mutually. The utility model discloses at focus regulation's in-process, two steel balls slide along the ring channel at sliding ring middle part, drive two eyepiece synchronous lifting through the mount, and the focus is realized changing in step to guarantee binocular's both sides, avoids causing the influence to the field of vision that the telescope provided.

Description

Binocular focusing structure

Technical Field

The utility model relates to a telescope technical field especially relates to a binocular focusing structure.

Background

Currently, a telescope is an optical instrument that uses lenses or mirrors and other optical devices to view a remote object. The light rays passing through the lens are refracted or reflected by the concave mirror to enter the small hole and converge to form an image, and then the image is seen through the magnifying eyepiece, so that the field angle of a distant object can be magnified, and the light beams collected by the objective lens and much thicker than the diameter of the pupil are sent to human eyes, so that an observer can see the originally invisible dark and weak object.

In order to see objects at different distances clearly, the focal length of the telescope can be adjusted, the phenomenon that two lenses on two sides are not synchronous when the focal length of the existing binoculars is adjusted exists, the visual field of a user is influenced, and the binocular focusing structure is urgently needed to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a binocular focusing structure.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a binocular focusing structure, includes the axis, centraxonial both sides all articulate there is the objective, and the top of two objective all pegs graft and have the eyepiece, centraxonial top threaded connection has the thread bush, and the outer wall fixedly connected with knob at thread bush top, the outer wall fixedly connected with sliding ring at thread bush middle part, and the outer wall at sliding ring middle part has seted up the ring channel, and the inside of ring channel is provided with two steel balls, two the equal fixedly connected with mount in one side that the steel ball kept away from mutually, and two mounts respectively with two eyepiece fixed connection.

As a further aspect of the present invention: two the equal fixedly connected with of one end that the mount was kept away from mutually is fixed the ring, and two fixed ring's inner wall is laminated in the outer wall of two eyepieces respectively, two fixed ring pass through bolt fixed connection with two eyepieces respectively.

As a further aspect of the present invention: the outer wall of the knob is provided with anti-slip grooves which are uniformly distributed.

As a further aspect of the present invention: the bottom of axis rotates and is connected with changes the board, and changes the equal fixedly connected with connecting rod in both sides of board, the equal fixedly connected with sunshade of one end that two connecting rods kept away from mutually.

As a further aspect of the present invention: two the draw-in groove has all been seted up at the top of sunshade, and the bottom of two objective pegs graft respectively in the inside of two draw-in grooves.

As a further aspect of the present invention: the bottom end of the middle shaft is fixedly connected with a sleeve, a spring is arranged inside the sleeve, the bottom end of the spring is fixedly connected with a pressing rod, and the bottom end of the pressing rod is rotatably connected to the middle position of the top of the rotating plate through a bearing.

As a further aspect of the present invention: two the recess has all been seted up to the one end that the steel ball is close to mutually, and the inside of two recesses all is provided with the ball, and the radius of ball is less than the inner chamber radius of recess.

The utility model has the advantages that:

1. by arranging the threaded sleeve, the sliding ring, the steel balls and the fixing frame, in the process of rotating the threaded sleeve, the two steel balls slide along the annular groove in the middle of the sliding ring, and the fixing frame drives the two eyepieces to synchronously lift, so that the two sides of the binocular telescope are ensured to synchronously change the focal length, and the visual field provided by the telescope is prevented from being influenced;

2. by arranging the spring, the rotating plate and the shielding plates, when the telescope is idle, the two shielding plates shield the bottom end of the objective lens to protect the lens, when the shielding plates need to be taken down, the rotating plate is pulled and rotated to enable the shielding plates to be away from the bottom end of the objective lens, the spring is stretched in the process, and after the rotating plate is loosened, the spring drives the rotating plate to reset upwards through the pressing rod, so that the shielding plates cannot shield the bottom end of the objective lens;

3. through setting up recess and ball, convert the sliding friction between steel ball and the sliding ring into rolling friction through the ball, reduce the mutual loss between the two to it is more laborsaving to make the focusing process.

Drawings

Fig. 1 is a schematic structural diagram of a focusing structure of binoculars according to embodiment 1;

fig. 2 is a schematic structural diagram of a rotating plate of a focusing structure of binoculars according to embodiment 1;

fig. 3 is a partial structural schematic view of a focusing structure of binoculars according to embodiment 2;

fig. 4 is a schematic structural diagram of a focusing structure of binoculars according to embodiment 2 at a point a.

In the figure: the device comprises a central shaft 1, an objective lens 2, a fixing ring 3, an ocular lens 4, a fixing frame 5, a knob 6, a steel ball 7, a sliding ring 8, a threaded sleeve 9, a rotating plate 10, a spring 11, a pressure lever 12, a sleeve 13, a connecting rod 14, a shielding plate 15, a groove 16 and a ball 17.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-2, a binocular focusing structure comprises a center shaft 1, wherein two sides of the center shaft 1 are hinged with objective lenses 2, the tops of the two objective lenses 2 are respectively inserted with an ocular lens 4, the top of the center shaft 1 is in threaded connection with a threaded sleeve 9, the outer wall of the top of the threaded sleeve 9 is fixedly connected with a knob 6, the outer wall of the middle of the threaded sleeve 9 is fixedly connected with a sliding ring 8, the outer wall of the middle of the sliding ring 8 is provided with an annular groove, two steel balls 7 are arranged inside the annular groove, one side, away from each other, of each of the two steel balls 7 is fixedly connected with a fixing frame 5, and the two fixing.

Wherein, the equal fixedly connected with of one end that two mount 5 kept away from mutually fixes ring 3, and two fixed ring 3's inner wall laminates in the outer wall of two eyepiece 4 respectively, and two fixed ring 3 pass through bolt fixed connection with two eyepiece 4 respectively.

Wherein, the outer wall of knob 6 is seted up evenly distributed's antiskid groove, increases knob 6's surface friction through antiskid groove.

Wherein, the bottom of axis 1 rotates and is connected with commentaries on classics board 10, and the equal fixedly connected with connecting rod 14 in both sides of commentaries on classics board 10, and the equal fixedly connected with sunshade 15 of one end that two connecting rods 14 kept away from mutually.

Wherein, the draw-in groove has all been seted up at the top of two sunshade 15, and two objective 2's bottom is pegged graft respectively in the inside of two draw-in grooves.

Wherein, the bottom fixedly connected with sleeve 13 of axis 1, and the inside of sleeve 13 is provided with spring 11, and the bottom fixedly connected with depression bar 12 of spring 11, the bottom of depression bar 12 is connected in the intermediate position at commentaries on classics board 10 top through the bearing rotation.

The working principle is as follows: the rotary knob 6 is rotated, the position of the threaded sleeve 9 on the middle shaft 1 is adjusted, the two eyepieces 4 are driven to move together, the distance between the eyepieces 4 and other lenses inside the objective lens 2 is changed, focusing is achieved accordingly, in the process of rotating the threaded sleeve 9, the two steel balls 7 slide along an annular groove in the middle of the sliding ring 8, the two eyepieces 4 are driven to lift synchronously through the fixing frame 5, synchronous focal length change of two sides of the binocular telescope is guaranteed, when the telescope is idle, the two shielding plates 15 shield the bottom end of the objective lens 2, the lenses are protected, when the shielding plates 15 need to be taken down, the rotary plate 10 is pulled and rotated, the shielding plates 15 are separated from the bottom end of the objective lens 2, the spring 11 is stretched in the process, after the rotary plate 10 is loosened, the spring 11 drives the rotary plate 10 to reset upwards through the pressing rod 12, and the shielding plates 15 cannot.

Example 2

Referring to fig. 3-4, in the present embodiment, compared to embodiment 1, a groove 16 is formed at one end of each of two steel balls 7 close to each other, and balls 17 are disposed inside each of the two grooves 16, where a radius of each ball 17 is smaller than a radius of an inner cavity of each groove 16.

The working principle is as follows: the sliding friction between the steel ball 7 and the slip ring 8 is converted into rolling friction through the ball 17, so that the mutual loss between the steel ball and the slip ring is reduced, and the focusing process is more labor-saving.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a binocular focusing structure, includes axis (1), its characterized in that, the both sides of axis (1) all articulate there is objective (2), and the top of two objective (2) all pegs graft and have eyepiece (4), the top threaded connection of axis (1) has thread bush (9), and the outer wall fixedly connected with knob (6) at thread bush (9) top, the outer wall fixedly connected with sliding ring (8) at thread bush (9) middle part, and the outer wall at sliding ring (8) middle part has seted up the ring channel, and the inside of ring channel is provided with two steel balls (7), two the equal fixedly connected with mount (5) in one side that steel ball (7) kept away from mutually, and two mount (5) respectively with two eyepiece (4) fixed connection.

2. The binocular focusing structure of claim 1, wherein the ends of the two fixing frames (5) far away from each other are fixedly connected with fixing rings (3), the inner walls of the two fixing rings (3) are respectively attached to the outer walls of the two eyepieces (4), and the two fixing rings (3) are respectively fixedly connected with the two eyepieces (4) through bolts.

3. A focusing structure for binoculars according to any one of claims 1-2, characterized in that the outer wall of the knob (6) is equipped with evenly distributed anti-slip grooves.

4. The binocular focusing structure according to claim 1, wherein the bottom end of the central shaft (1) is rotatably connected with a rotating plate (10), the two sides of the rotating plate (10) are fixedly connected with connecting rods (14), and the ends of the two connecting rods (14) far away from each other are fixedly connected with shielding plates (15).

5. The binocular focusing structure of claim 4, wherein the top of each of the two shielding plates (15) is provided with a slot, and the bottom ends of the two objective lenses (2) are respectively inserted into the two slots.

6. A binocular focusing structure according to claim 5, wherein a sleeve (13) is fixedly connected to the bottom end of the central shaft (1), a spring (11) is arranged inside the sleeve (13), a pressing rod (12) is fixedly connected to the bottom end of the spring (11), and the bottom end of the pressing rod (12) is rotatably connected to the middle position of the top of the rotating plate (10) through a bearing.

7. The binocular focusing structure of claim 2, wherein one ends of the two steel balls (7) close to each other are provided with grooves (16), balls (17) are arranged inside the two grooves (16), and the radius of each ball (17) is smaller than that of an inner cavity of each groove (16).