CN211180392U

CN211180392U - Compound focusing device of telescope

Info

Publication number: CN211180392U
Application number: CN202020005932.6U
Authority: CN
Inventors: 周捷; 皮波
Original assignee: Yunnan Hanrui Optical Instrument Co ltd
Current assignee: Yunnan Hanrui Optical Instrument Co ltd
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2020-08-04
Anticipated expiration: 2030-01-03

Abstract

The utility model discloses a telescope composite focusing device, which comprises a base, an outer barrel and an inner barrel, wherein the inner barrel comprises a focusing barrel and a rotating barrel, the tail end of the focusing barrel is connected with the head end of the rotating barrel, the tail end of the focusing barrel is provided with a connecting ring, the tail end of the rotating barrel is movably connected with a sealing ring, the sealing ring and the connecting ring are contacted with the inner wall of the outer barrel, the rotating barrel is provided with thread lines opposite to the surface of the inner wall of the outer barrel, the focusing barrel and the rotating barrel are both positioned in the outer barrel, the outer barrel is provided with a rotating groove, the rotating groove is rotationally connected with a rotating focusing ring, the inner wall and the outer wall of the rotating focusing ring are both protruded out of the surface of the outer barrel, one side of the outer barrel, which is positioned outside the rotating focusing ring, is provided with a limiting mechanism, the, therefore, the rotary focusing ring is fixed after the adjustment is finished, and the rotation is generated by the mistaken touch, so that the focusing is changed.

Description

Compound focusing device of telescope

Technical Field

The utility model relates to a telescope technical field specifically is a compound focusing device of telescope.

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 first function of the telescope is to magnify the field angle of a distant object, so that the human eye can see details with smaller angular distance. The telescope is used for transmitting the light beam collected by the objective lens and much thicker than the pupil diameter (maximum 8 mm) into human eyes, so that the observer can see the dark and weak objects which cannot be seen originally. The telescope needs to be focused during use in order to achieve an optimal line of sight.

However, the existing compound focusing device has the following disadvantages: the existing composite focusing device has the advantages that after the adjustment is finished, any limiting protection of the adjusting device is realized, the focusing is easy to change due to mistaken collision, the use is not facilitated, in use, the sealing effect between the outer barrel and the inner barrel of the focusing device is poor, and dust and moisture between the outer barrel and the inner barrel are easy to enter to influence the use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound focusing device of telescope to current compound focusing device is after the regulation among the above-mentioned background art of solution, and any spacing protection of adjusting device thing is bumped because of the mistake easily and is makeed the focusing change, is unfavorable for using, and in use, and sealed effect is not good between the urceolus of focusing device and the inner tube, and dust and moisture get into easily between the two, influence the problem of using.

In order to achieve the above object, the utility model provides a following technical scheme: a telescope composite focusing device comprises a base, an outer cylinder and an inner cylinder, wherein one end of the outer cylinder is fixed on the base, the inner cylinder is arranged in the outer cylinder and comprises a focusing cylinder and a rotating cylinder, the tail end of the focusing cylinder is connected with the head end of the rotating cylinder, the tail end of the focusing cylinder is provided with a connecting ring, the tail end of the rotating cylinder is movably connected with a sealing ring, the sealing ring and the connecting ring are contacted with the inner wall of the outer cylinder, the surface of the rotating cylinder relative to the inner wall of the outer cylinder is provided with thread grains, the focusing barrel and the rotating barrel are both positioned in the outer barrel, the outer barrel is provided with a focusing rotating groove, a rotating focusing ring is rotationally connected in the focusing rotating groove, the inner wall and the outer wall of the rotary focusing ring both protrude out of the surface of the outer barrel, the inner ring wall of the rotary focusing ring is provided with thread grains, and an inner ring of the rotary focusing ring is in threaded connection with the outer part of the rotary barrel, and a limiting mechanism is arranged on one side, located on the rotary focusing ring, of the outer part of the outer barrel.

Preferably, the limiting mechanism comprises a retraction ring, a limiting half ring and a forward extension ring, the retraction ring and the forward extension ring are wrapped on the outer wall of the outer barrel, a distance is reserved between the retraction ring and the forward extension ring, the bottom end of the limiting half ring is connected with the movable half ring, the movable half ring is arranged between the retraction ring and the forward extension ring, and the tail end of the limiting half ring is inserted into the rotary focusing ring.

Preferably, the side wall of the rotary focusing ring is provided with a limiting groove, and the tail end of the limiting half ring is arranged in the limiting groove.

Preferably, return and seted up removal semicircular groove on the lateral wall that contracts ring and protrusion ring relatively, remove semicircular groove and remove the semi-ring phase-match, it pegs graft in the removal semicircular groove that contracts ring and protrusion ring to remove the semi-ring, the removal semicircular inslot wall that contracts ring and protrusion ring is equipped with magnet, it adopts magnetic adsorption's metal material to remove the semi-ring.

Preferably, a rotating groove is formed in the contact end of the focusing barrel and the rotating barrel, a rotating ring is arranged at the front end of the rotating barrel, and the rotating ring is rotatably connected in the rotating groove.

Preferably, a sliding block is convexly arranged on the connecting ring at the tail end of the focusing barrel, a sliding groove is formed in the position, corresponding to the sliding block, of the inner wall of the outer barrel, and the sliding block is arranged in the sliding groove.

The utility model provides a compound focusing device of telescope possesses following beneficial effect:

(1) the utility model discloses a return ring and the protrusion ring that contracts that set up around adopting stop gear, and arrange the removal semi-ring of stop semi-ring tail end in and return between ring and the protrusion ring, install this kind of stop gear at the rear that rotates the focusing ring on the urceolus, during the use, utilize and rotate the focusing ring and move the inner tube after the urceolus back-and-forth movement confirmation position, can rotate the focusing ring with stop semi-ring to promote, make stop semi-ring insert the spacing inslot that rotates the focusing ring, thereby will rotate the focusing ring and fix after adjusting, it bumps the production rotation to place the mistake, make the focusing produce the change.

(2) The utility model discloses an adopt a focus section of thick bamboo and a rotation section of thick bamboo to constitute the inner tube to set up the go-between at the tail end of a focus section of thick bamboo, set up the sealing ring at the tail end of a rotation section of thick bamboo, simultaneously with the outer rampart of sealing ring and go-between and the interior rampart contact of urceolus, thereby make to have many times sealed effect between urceolus and the inner tube, in avoiding the dust steam in the air to get into urceolus and inner tube, influence the use of urceolus and.

(3) The utility model discloses a be provided with magnet at the groove ground of the removal semi-annular of returning the collar and the protrusion ring, and will remove the semi-ring and adopt magnetic adsorption's metal material, during the use, can make removal semi-ring and removal semi-ring groove connection fastening, difficult emergence is not hard up.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;

fig. 4 is a schematic side view of the outer cylinder and the inner cylinder of the present invention.

In the figure: 1. a base; 2. a retraction loop; 3. a limiting semi-ring; 4. rotating the focusing ring; 5. an outer cylinder; 6. an inner barrel; 7. a focusing barrel; 8. a rotating cylinder; 9. a magnet; 10. moving the half ring groove; 11. a seal ring; 12. a forward extending ring; 13. a limiting groove; 14. a focusing rotary slot; 15. a connecting ring; 16. moving the half ring; 17. a rotating ring; 18. a rotating groove; 19. a sliding groove; 20. and a slider.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: a telescope composite focusing device comprises a base 1, an outer barrel 5 and an inner barrel 6, wherein one end of the outer barrel 5 is fixed on the base 1, the inner barrel 6 is arranged in the outer barrel 5, the inner barrel 6 comprises a focusing barrel 7 and a rotating barrel 8, the tail end of the focusing barrel 7 is connected with the head end of the rotating barrel 8, the tail end of the focusing barrel 7 is provided with a connecting ring 15, the tail end of the rotating barrel 8 is movably connected with a sealing ring 11, the sealing ring 11 and the connecting ring 15 are in contact with the inner wall of the outer barrel 5, the rotating barrel 8 is provided with thread grains relative to the surface of the inner wall of the outer barrel 5, the focusing barrel 7 and the rotating barrel 8 are both positioned in the outer barrel 5, a focusing rotary groove 14 is arranged on the outer barrel 5, a rotary focusing ring 4 is rotationally connected in the focusing rotary groove 14, the inner wall and the outer wall of the rotary focusing ring 4 are both protruded, and the inner ring of the rotary focusing ring 4 is in threaded connection with the outer part of the rotary barrel 8, and a limiting mechanism is arranged on one side of the outer barrel 5, which is positioned on the rotary focusing ring 4.

The limiting mechanism comprises a retraction ring 2, a limiting semi-ring 3 and a protraction ring 12, the retraction ring 2 and the protraction ring 12 are wrapped on the outer wall of the outer barrel 5, a distance is arranged between the retraction ring 2 and the protraction ring 12, the bottom end of the limiting semi-ring 3 is connected with a movable semi-ring 16, the movable semi-ring 16 is arranged between the retraction ring 2 and the protraction ring 12, the tail end of the limiting semi-ring 3 is inserted on the rotary focusing ring 4, the side wall of the rotary focusing ring 4 is provided with a limiting groove 13, the tail end of the limiting semi-ring 3 is arranged in the limiting groove 13, the side wall of the retraction ring 2 opposite to the protraction ring 12 is provided with a movable semi-ring groove 10, the movable semi-ring groove 10 is matched with the movable semi-ring 16, the movable semi-ring 16 is inserted in the movable semi-ring groove 10 of the retraction ring 2 and the protraction ring 12, the inner wall of the movable semi-ring 10 of the retraction ring 2 and, by using the limiting mechanism, the mistaken collision can be prevented.

The focusing barrel 7 is provided with a rotating groove 18 at the end contacting with the rotating barrel 8, the front end of the rotating barrel 8 is provided with a rotating ring 17, the rotating ring 17 is rotatably connected in the rotating groove 18, and the focusing barrel 7 can linearly move under the action of the rotating ring 17 and the rotating groove 18.

The connecting ring 15 at the tail end of the focusing barrel 7 is convexly provided with a sliding block 20, a sliding groove 19 is formed in the inner wall of the outer barrel 5 at a position corresponding to the sliding block 20, and the sliding block 20 is arranged in the sliding groove 19 to ensure that the focusing barrel 7 keeps linear motion when moving in the outer barrel 5.

It should be noted that, when in use, the inner cylinder 6 is placed in the outer cylinder 5, the inner cylinder 6 is composed of the focusing cylinder 7 and the rotating cylinder 8, and the outer wall of the rotating cylinder 8 is connected with the rotating focusing ring 4 on the outer cylinder 5 by screw thread, when in use, when in focusing, the rotating focusing ring 4 is rotated, so that the rotating cylinder 8 connected with the rotating focusing ring 4 by screw thread moves in the outer cylinder 5, and at the same time, the focusing cylinder 7 at the front end of the rotating cylinder 8 is driven to move, thereby achieving the purpose of focusing, wherein, because the rotating ring 17 at the front end of the rotating cylinder 8 is connected in the rotating groove 18 of the focusing cylinder 7 by rotation, thereby the rotating cylinder 8 moves in a rotary manner, the focusing cylinder 7 can be driven to move back and forth, and the slide block 20 on the connecting ring 15 at the tail end of the focusing cylinder 7 is connected in the sliding groove 19 on the inner wall of the outer cylinder 5 by sliding, because the limiting mechanism adopts the front and back arranged extension ring 12 and retraction ring 2 and the limiting semi-ring 3 and the moving semi-ring 16 arranged between the extension ring 12 and the retraction ring 2, and the opposite surface between the extension ring 12 and the retraction ring 2 is provided with the moving semi-ring groove 10, the moving semi-ring 16 is inserted in the moving semi-ring groove 10, the limiting mechanism is arranged at the back side of the rotary focusing ring 4, after the focusing is finished, the limiting semi-ring 3 slides towards the direction of the rotary focusing ring 4, so that the front end of the limiting semi-ring 3 is inserted into the limiting groove 13 of the rotary focusing ring 4, the limiting semi-ring 3 is utilized to limit and fix the rotary focusing ring 4, after the focusing is finished, the rotary focusing ring 4 can not be rotated due to mistaken touch, when the focusing is needed, the limiting semi-ring 3 can be pushed backwards, wherein, when the limiting semi-ring 3 is pushed forwards or pushed backwards to be completely contacted with the moving semi-ring groove 10 at one side, magnet 9 in the removal semicircular groove 10 can adsorb fixedly with the metal material's of magnetic adsorption removal semicircular ring 16, wherein the tail end of focusing barrel 7 sets up go-between 15, sets up sealing ring 11 at the tail end of a section of thick bamboo 8 that rotates, contacts the outer rampart of sealing ring 11 and go-between 15 with the inner ring wall of urceolus 5 simultaneously to make and have many times sealed effect between urceolus 5 and the inner tube 6, avoid in the dust steam in the air gets into urceolus and inner tube, influence the use of urceolus and inner tube.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a compound focusing device of telescope, includes base (1), urceolus (5) and inner tube (6), the one end of urceolus (5) is fixed on base (1), inner tube (6) set up in urceolus (5), its characterized in that: the inner tube (6) comprises a focusing tube (7) and a rotating tube (8), the tail end of the focusing tube (7) is connected with the head end of the rotating tube (8), the tail end of the focusing tube (7) is provided with a connecting ring (15), the tail end of the rotating tube (8) is movably connected with a sealing ring (11), the sealing ring (11) and the connecting ring (15) are in contact with the inner wall of the outer tube (5), the rotating tube (8) is provided with thread grains relative to the surface of the inner wall of the outer tube (5), the focusing tube (7) and the rotating tube (8) are both positioned in the outer tube (5), a focusing rotary groove (14) is arranged on the outer tube (5), a rotating focusing ring (4) is rotatably connected with the focusing ring (4), the inner wall and the outer wall of the focusing ring (4) are all protruded out of the surface of the outer tube (5), the inner wall of the focusing ring (4), and the inner ring of the rotary focusing ring (4) is in threaded connection with the outer part of the rotary barrel (8), and a limiting mechanism is arranged on one side of the outer barrel (5) which is positioned outside the rotary focusing ring (4).

2. A compound focusing apparatus for a telescope according to claim 1, wherein: the limiting mechanism comprises a retraction ring (2), a limiting half ring (3) and a forward extension ring (12), the retraction ring (2) and the forward extension ring (12) are wrapped on the outer wall of the outer barrel (5), a distance is reserved between the retraction ring (2) and the forward extension ring (12), the bottom end of the limiting half ring (3) is connected with a movable half ring (16), the movable half ring (16) is arranged between the retraction ring (2) and the forward extension ring (12), and the tail end of the limiting half ring (3) is inserted into the rotary focusing ring (4).

3. A compound focusing apparatus for a telescope according to claim 2, wherein: the side wall of the rotary focusing ring (4) is provided with a limiting groove (13), and the tail end of the limiting half ring (3) is arranged in the limiting groove (13).

4. A compound focusing apparatus for a telescope according to claim 2, wherein: retraction ring (2) and the relative lateral wall of protraction ring (12) have been seted up and have been removed semiring groove (10), remove semiring groove (10) and remove semiring groove (16) phase-match, remove semiring groove (16) and peg graft in the removal semiring groove (10) of retraction ring (2) and protraction ring (12), the removal semiring groove (10) inner wall of retraction ring (2) and protraction ring (12) is equipped with magnet (9), it adopts magnetic adsorption's metal material to remove semiring groove (16).

5. A compound focusing apparatus for a telescope according to claim 1, wherein: the focusing barrel (7) is provided with a rotating groove (18) at the end contacting with the rotating barrel (8), the front end of the rotating barrel (8) is provided with a rotating ring (17), and the rotating ring (17) is rotatably connected in the rotating groove (18).

6. A compound focusing apparatus for a telescope according to claim 1, wherein: a sliding block (20) is convexly arranged on the connecting ring (15) at the tail end of the focusing barrel (7), a sliding groove (19) is formed in the position, corresponding to the sliding block (20), of the inner wall of the outer barrel (5), and the sliding block (20) is arranged in the sliding groove (19).