CN211577537U

CN211577537U - Binocular zoom structure

Info

Publication number: CN211577537U
Application number: CN202020568647.5U
Authority: CN
Inventors: 马炯
Original assignee: Kunming Yike Optical Co ltd
Current assignee: Kunming Yike Optical Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-09-25
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a binocular zoom structure, including a cam barrel and a cover plate, a zoom barrel is arranged between the cam barrel and the cover plate, the zoom barrel comprises a second external barrel matched with the cam barrel and a third external barrel matched with the cover plate, a first external barrel is connected above the third external barrel, the first external barrel is connected with the second external barrel and forms a first step, an upper chute matched with the cam barrel is arranged on the inner wall of the second external barrel, an upper chute protective wall is arranged outside the upper chute, and a reinforcing rib is arranged on the outer wall of the second external barrel; the device increases a component for connecting the original cam cylinder and the cover plate by arranging the zoom cylinder between the cam cylinder and the cover plate, namely the zoom cylinder buffers in the middle, and the zoom cylinder can move a certain distance along with the cam cylinder in the zooming movement process, so that the guide screw in the sliding groove can not fall off from the cam cylinder.

Description

Binocular zoom structure

Technical Field

The utility model relates to a telescope equipment technical field, concretely relates to binocular zooms structure.

Background

A telescope is an optical instrument that uses lenses or mirrors, as well as 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 be converged to form an image, and then the image is seen through a magnifying eyepiece. The main structure of the binocular telescope comprises a telescope body, an ocular, an objective, a prism and a focusing system, wherein the prism is arranged in the telescope body between the ocular and the objective, the interior and the exterior of the prism are connected with the focusing system, and the focusing system is connected with the telescope body through a cover plate. In the focusing system between the eyepiece and the prism, the lens base of the lens body is fixed, the cover plate is connected with the lens base and is provided with a lens barrel with a cam in a rotating mode, and the lens barrel is provided with a guide nail at the joint of the lens barrel and the cover plate to assist focusing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a binocular zooms structure solves to follow the removal of cam lens cone easily and drops from the apron in, causes the problem of service failure to the nail.

In order to solve the technical problem, the utility model adopts the following technical scheme:

a binocular zoom structure comprises a cam barrel and a cover plate, wherein a zoom barrel is arranged between the cam barrel and the cover plate, the zoom barrel comprises a second external barrel matched with the cam barrel and a third external barrel matched with the cover plate, a first external barrel is connected above the third external barrel, the first external barrel is connected with the second external barrel to form a first step, an upper chute matched with the cam barrel is arranged on the inner wall of the second external barrel, an upper chute protection wall is arranged on the outer side of the upper chute, and a reinforcing rib is arranged on the outer wall of the second external barrel.

Furthermore, a positioning ring is arranged on the outer side of the joint between the first external cylinder and the second external cylinder, and a positioning protrusion is arranged on the outer ring of the positioning ring.

Furthermore, a third externally-connected cylinder with the same diameter is connected and arranged below the second externally-connected cylinder, a positioning groove is formed between the third externally-connected cylinder and the second externally-connected cylinder, and the cover plate is sleeved on the third externally-connected cylinder.

Further, the upper chute extends to the bottom of the third externally connected cylinder and forms a chute opening on the third externally connected cylinder.

Furthermore, a fourth external cylinder is connected and arranged below the third external cylinder.

Further, the outer diameter of the fourth external cylinder is set to be consistent with the inner diameter of the third external cylinder, and the fourth external cylinder and the third external cylinder form a second step.

Furthermore, the fourth external cylinder is provided with a lower chute which is coaxial with the upper chute, and the lower chute is provided with a lower chute protecting wall.

Furthermore, a notch is arranged on the fourth external cylinder.

Further, the number of the reinforcing ribs is 6, and the interval is 60 degrees.

Furthermore, the included angle between the positioning protrusion and the upper chute protection wall is set to be 60 degrees.

Compared with the prior art, the beneficial effects of the utility model are that:

the device increases a component for connecting the original cam cylinder and the cover plate by arranging the zoom cylinder between the cam cylinder and the cover plate, namely the zoom cylinder buffers in the middle, and the zoom cylinder can move a certain distance along with the cam cylinder in the zooming movement process, so that the guide screw in the sliding groove can not fall off from the cam cylinder.

Drawings

Fig. 1 is the assembly structure diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a bottom view of the present invention.

Fig. 5 is a side view of the present invention.

Fig. 6 is a cross-sectional view of the present invention at a.

On the way, 1-cam cylinder, 2-zoom cylinder, 3-cover plate, 21-positioning ring, 211-positioning projection, 22-first external cylinder, 23-second external cylinder, 231-upper chute retaining wall, 232-reinforcing rib, 233-upper chute, 24-upper external cylinder, 25-third external cylinder, 251-chute opening, 26-fourth external cylinder, 261-lower chute retaining wall, 262-notch, 263-lower chute and 27-positioning groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1:

the binocular zoom structure comprises a cam barrel 1 and a cover plate 3, a zoom barrel 2 is arranged between the cam barrel 1 and the cover plate 3 and used for buffering, the zoom barrel 2 comprises a cylindrical second external barrel 23 matched with the cam barrel 1 and a cylindrical third external barrel 25 matched with the cover plate 3, the cam barrel 1 is inserted into an inner cavity of the second external barrel 23, a positioning barrel on the cover plate 3 is inserted into the third external barrel 25, a first external barrel 22 is connected above the third external barrel 25, the first external barrel 22 is connected with the second external barrel (23) to form a first step, the cover plate 3 is inserted into the step, and meanwhile, an original lens base can be installed and matched on the step. In order to not change the original focusing structure, the inner wall of the second external cylinder 23 is provided with an upper chute 233 matched with the cam cylinder 1, the outer side of the upper chute 233 is provided with an upper chute guard wall 231, the structure originally connected to the cover plate 3 is moved to the second external cylinder 23, the outer wall of the second external cylinder 23 is provided with reinforcing ribs 232, and the reinforcing ribs can be provided with a bearing seat and a moving body of the original telescope, so that the telescope is not easy to slide in the focusing movement process.

Example 2:

on the basis of the above embodiment, in this embodiment, in order to facilitate the installation of the mirror base and the cover plate, a positioning ring 21 is disposed outside the joint between the first external cylinder 22 and the second external cylinder 23, and a positioning protrusion 211 is disposed on the outer ring of the positioning ring 21.

Example 3:

on the basis of the above embodiments, in this embodiment, in order to facilitate and stabilize the installation of the cover plate, a third externally-connected cylinder 25 with the same diameter is connected and arranged below the second externally-connected cylinder 23, a positioning groove 27 is formed between the third externally-connected cylinder 25 and the second externally-connected cylinder 23, the cover plate 3 is sleeved and arranged on the third externally-connected cylinder 25, the upper chute 233 extends to the bottom of the third externally-connected cylinder 25 and forms a chute opening 251 on the third externally-connected cylinder 25,

example 4:

on the basis of the above embodiment, in order to better mount the zoom lens 2 in this embodiment, a fourth external cylinder 26 is connected to the lower side of the third external cylinder (25), specifically, the outer diameter of the fourth external cylinder 26 is set to be consistent with the inner diameter of the third external cylinder 25, the fourth external cylinder 26 and the third external cylinder 25 form a second step, similarly, the fourth external cylinder 26 is provided with a lower chute 263 coaxial with the upper chute 233, and the lower chute 263 is provided with a lower chute guard wall 261.

Example 5:

on the basis of the above embodiments, the fourth external cylinder 26 of the present embodiment is provided with the notch 262 for easy installation.

Example 6:

on the basis of the above embodiment, in this embodiment, the strengthening ribs 232 are set to be 6, and the interval is 60 degrees, so as to firstly process and secondly limit the number of rotation turns of fine tuning.

Example 7:

on the basis of the above embodiments, in the present embodiment, specifically, the included angle between the positioning protrusion 211 and the upper chute guard wall 231 is set to be 60 degrees.

Reference throughout this specification to "example 1", "example 2", "example 3", "example 4", and so forth, means that a particular feature, structure, or characteristic described in connection with the example is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. A binocular zooming structure comprising a cam barrel (1) and a cover plate (3), characterized in that: a zooming cylinder (2) is arranged between the cam cylinder (1) and the cover plate (3), the zooming cylinder (2) comprises a second external cylinder (23) matched with the cam cylinder (1) and a third external cylinder (25) matched with the cover plate (3), a first external cylinder (22) is connected above the third external cylinder (25), the first external cylinder (22) is connected with the second external cylinder (23) to form a first step, an upper chute (233) matched with the cam cylinder (1) is arranged on the inner wall of the second external cylinder (23), an upper chute protecting wall (231) is arranged on the outer side of the upper chute (233), and a reinforcing rib (232) is arranged on the outer wall of the second external cylinder (23).

2. The binocular zoom structure of claim 1, wherein: a positioning ring (21) is arranged on the outer side of the joint between the first external cylinder (22) and the second external cylinder (23), and a positioning bulge (211) is arranged on the outer ring of the positioning ring (21).

3. The binocular zoom structure of claim 1, wherein: the lower part of the second externally-connected barrel (23) is connected with a third externally-connected barrel (25) with the same diameter, a positioning groove (27) is formed between the third externally-connected barrel (25) and the second externally-connected barrel (23), and the cover plate (3) is sleeved on the third externally-connected barrel (25).

4. The binocular zoom structure of claim 1, wherein: the upper slide groove (233) extends to the bottom of the third externally connecting cylinder (25) and forms a slide groove opening (251) on the third externally connecting cylinder (25).

5. The binocular zoom structure of claim 4, wherein: a fourth external cylinder (26) is connected and arranged below the third external cylinder (25).

6. The binocular zoom structure of claim 5, wherein: the outer diameter of the fourth externally-connected cylinder (26) is set to be consistent with the inner diameter of the third externally-connected cylinder (25), and the fourth externally-connected cylinder (26) and the third externally-connected cylinder (25) form a second step.

7. The binocular zoom structure of claim 6, wherein: the fourth external cylinder (26) is provided with a lower chute (263) which is coaxial with the upper chute (233), and the lower chute (263) is provided with a lower chute retaining wall (261).

8. The binocular zoom structure of claim 5, wherein: a notch (262) is arranged on the fourth external cylinder (26).

9. The binocular zoom structure of claim 1, wherein: the number of the reinforcing ribs (232) is 6, and the interval is 60 degrees.

10. The binocular zoom structure of claim 2, wherein: the included angle between the positioning protrusion (211) and the upper chute protecting wall (231) is set to be 60 degrees.