CN215494337U

CN215494337U - Objective lens dust cover for telescope

Info

Publication number: CN215494337U
Application number: CN202023000812.6U
Authority: CN
Inventors: 李成林
Original assignee: Chongqing Jiawang Metal Co ltd
Current assignee: Chongqing Jiawang Metal Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2022-01-11
Anticipated expiration: 2030-12-14

Abstract

The utility model relates to the field of dust covers for telescopes, in particular to an objective lens dust cover for a telescope, which comprises a dust cover, wherein a rotating outer ring is connected to the outer side of the dust cover, a fixed block is connected to one end of the rotating outer ring, a telescopic rod is connected to one end of the fixed block, a loop bar is connected to one end of the telescopic rod, a first rotating ring is connected to one end of the loop bar, a second rotating ring is connected to the rear end of the first rotating ring, a rotating shaft is connected to the inside of the second rotating ring, a fixing cap is connected to one end of the rotating shaft, and an adjusting button is connected to the upper end of the loop bar; in the utility model, the length of the telescopic rod and the length of the sleeve rod can be adjusted through the adjusting button, so that the telescopic rod and the sleeve rod are convenient to get up, the sleeve rods on two sides of the telescopic rod can rotate through the first rotating ring, the second rotating ring, the rotating shaft and the fixing cap, and the dustproof cover has a better adjusting effect by matching with the rotating effect of the dustproof cover and the rotating outer ring, and is simple and practical.

Description

Objective lens dust cover for telescope

Technical Field

The utility model relates to the field of a dust cover for a telescope, in particular to a dust cover for an objective lens for the 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 converge to form an image, and then the image is seen through a magnifying eyepiece; when the objective lens of the telescope is idle, a dustproof cover is needed, but the dustproof cover of the objective lens for the existing telescope is inconvenient to adjust and inconvenient to use.

To this end, we propose an objective dust cap for a telescope.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an objective lens dust cap for a telescope, which solves the problems that the existing objective lens dust cap for the telescope is inconvenient to adjust, the dust cap falls off when the objective lens is adjusted, and the using effect is poor.

In order to achieve the purpose, the objective lens dust cover for the telescope comprises a dust cover, wherein a rotating outer ring is connected to the outer side of the dust cover, a fixed block is connected to one end of the rotating outer ring, a telescopic rod is connected to one end of the fixed block, a loop bar is connected to one end of the telescopic rod, a first rotating ring is connected to one end of the loop bar, a second rotating ring is connected to the rear end of the first rotating ring, a rotating shaft is connected to the inside of the second rotating ring, a fixing cap is connected to one end of the rotating shaft, an adjusting button is connected to the upper end of the loop bar, a push rod is connected to the bottom end of the adjusting button, a second spring is fixedly connected to the bottom end of the push rod, a telescopic cavity is formed in the loop bar, a second ratchet is connected to the inside of the loop bar, a limiting block is connected to the inside of the loop bar, a baffle is connected to one end of the telescopic rod, and a sliding cavity is formed in one end of the telescopic rod, one end of the telescopic rod is connected with a supporting rod, two ends of the supporting rod are connected with sliding devices, the bottom end of the supporting rod is connected with a first spring, and the upper end of the supporting rod is connected with a first ratchet.

The outer side of the dustproof cover is rotatably connected to the inner side of the rotating outer ring, one end of the dustproof cover is fixedly connected to one side of the fixed block, and the other end of the fixed block is fixedly connected to one end of the telescopic rod.

The other end of the telescopic rod is movably connected to one end of the sleeve rod, one end of the sleeve rod is fixedly connected to one end of the first rotating ring, and the rear end of the first rotating ring is rotatably connected to the front end of the second rotating ring.

The inner part of the first rotating ring is sleeved on the outer side of the rotating shaft, and one end of the rotating shaft is fixedly connected to the inner part of the fixing cap.

The upper end fixed connection of loop bar is in adjustment button's bottom, adjustment button's bottom fixed connection is in the upper end of push rod, the bottom fixed connection of push rod is in the upper end of second spring.

The telescopic device comprises a baffle, a telescopic rod, a support rod, a sliding device, a first ratchet, a second ratchet, a first spring, a second spring, a support rod, a first spring, a second spring, a sliding cavity, a sliding device and a support rod.

The telescopic cavity is arranged inside the loop bar, the upper end of the telescopic cavity is fixedly connected to the bottom end of the second ratchet, and the upper end of the second ratchet is fixedly connected to the upper end of the limiting block.

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

to current objective shield for telescope, on its original basis, make its telescopic link and the length of cover rod can be adjusted through adjustment button, make it get up conveniently to the loop bar that makes its both sides can rotate through first rotating ring, second rotating ring, pivot, locking cap, and the cooperation shield makes its shield have better regulation effect, simple and practical with the rotation effect of rotating the outer loop.

Drawings

FIG. 1 is a view showing the overall effect of an objective lens dust cap for a telescope according to the present invention;

FIG. 2 is an exploded view of a rotating unit of an objective lens dust cap for a telescope according to the present invention;

FIG. 3 is a cross-sectional view of a telescopic device of the dust cap of the objective lens for a telescope according to the present invention.

In the figure: 1. a dust cover; 2. rotating the outer ring; 3. a fixed block; 4. a telescopic rod; 5. a loop bar; 6. a first rotating ring; 7. a second rotating ring; 8. a rotating shaft; 9. a fixing cap; 10. an adjustment button; 11. a telescoping chamber; 12. a baffle plate; 13. a support bar; 14. a sliding device; 15. a first spring; 16. a first ratchet; 17. a push rod; 18. a second spring; 19. a second ratchet; 20. a sliding cavity; 21. and a limiting block.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a dust cap for an objective lens of a telescope, including a dust cap 1, a rotating outer ring 2 connected to an outer side of the dust cap 1, a fixed block 3 connected to an end of the rotating outer ring 2, a telescopic rod 4 connected to an end of the fixed block 3, a telescopic rod 5 connected to an end of the telescopic rod 4, a first rotating ring 6 connected to an end of the telescopic rod 5, a second rotating ring 7 connected to a rear end of the first rotating ring 6, a rotating shaft 8 connected to an inner portion of the second rotating ring 7, a fixed cap 9 connected to an end of the rotating shaft 8, an adjusting button 10 connected to an upper end of the telescopic rod 5, a push rod 17 connected to a bottom end of the adjusting button 10, a second spring 18 fixedly connected to a bottom end of the push rod 17, a telescopic cavity 11 provided in the telescopic rod 5, a second ratchet 19 connected to an inner portion of the telescopic rod 5, a stopper 21 connected to an inner portion of the telescopic rod 5, a baffle 12 connected to an end of the telescopic rod 4, one end of the telescopic rod 4 is provided with a sliding cavity 20, one end of the telescopic rod 4 is connected with a support rod 13, two ends of the support rod 13 are connected with a sliding device 14, the bottom end of the support rod 13 is connected with a first spring 15, and the upper end of the support rod 13 is connected with a first ratchet 16.

In this embodiment, make its telescopic link and loop bar 5's length can be adjusted through adjustment button 10, make it get up conveniently to make the loop bar 5 of its both sides can rotate through first rotating ring 6, second rotating ring 7, pivot 8, locking cap 9, and the cooperation shield 1 and the rotation effect of rotating outer ring 2 make its shield 1 have better regulation effect, simple and practical.

Further, the outside of shield 1 is rotated and is connected in the inboard that rotates outer ring 2, and the one end fixed connection of shield 1 is in one side of fixed block 3, and the other end fixed connection of fixed block 3 is in the one end of telescopic link 4.

In this embodiment, the outer ring 2 is rotated to support the dust cap 1, the dust cap 1 is used to prevent dust, and the fixing block 3 and the telescopic rod 4 are connected.

Furthermore, the other end of the telescopic rod 4 is movably connected to one end of the sleeve rod 5, one end of the sleeve rod 5 is fixedly connected to one end of the first rotating ring 6, and the rear end of the first rotating ring 6 is rotatably connected to the front end of the second rotating ring 7.

In this embodiment, the telescopic rod 4 and the loop bar 5 have the effect of adjusting the length of the dust cap 1, and the first rotating ring 6 and the second rotating ring 7 have the effect of connecting the loop bar 5, so that the dust cap 1 can be conveniently rotated.

Further, the inside of the first rotating ring 6 is sleeved outside the rotating shaft 8, and one end of the rotating shaft 8 is fixedly connected inside the fixing cap 9.

In the present embodiment, the rotation shaft 8 and the fixing cap 9 provide a rotation effect to the dust cap 1.

Further, the upper end fixed connection of loop bar 5 is in the bottom of adjustment button 10, and the bottom fixed connection of adjustment button 10 is in the upper end of push rod 17, and the bottom fixed connection of push rod 17 is in the upper end of second spring 18.

In the present embodiment, the adjustment button 10 has an effect of controlling the adjustment length, the push rod 17 has an effect of pushing the support rod 13, and the second spring 18 has an effect of elastically returning the adjustment button 10.

Further, the one end fixed connection of telescopic link 4 is in the one end of baffle 12, and the front end of telescopic link 4 is provided with sliding chamber 20, and sliding chamber 20's both ends sliding connection is at the both ends of bracing piece 13, and the both ends fixed connection of bracing piece 13 is in the bottom of slider 14, and the upper end fixed connection of bracing piece 13 is in the bottom of first ratchet 16, and the bottom fixed connection of bracing piece 13 is in the upper end of first spring 15.

In this embodiment, the sliding device 14 has an effect of sliding the support rod 13, the first ratchet 16 is separated from the second ratchet 19, the telescopic rod 4 can slide in the telescopic cavity 11, the baffle 12 has an effect of supporting the support rod 13, the first spring 15 has an effect of elastically stretching, and the support rod 13 is pushed to return to its original position without external pressure.

Furthermore, the inside of loop bar 5 is provided with flexible chamber 11, and the upper end fixed connection in the bottom of second ratchet 19 in flexible chamber 11, and the upper end fixed connection in stopper 21 of second ratchet 19 is in the upper end.

In this embodiment, the second ratchet 19 has an effect of engaging with the first ratchet 16, and the stopper 21 has an effect of limiting the telescopic rod 4.

Working principle and implementation flow: the rotating outer ring 2 is clamped at the front end of an objective lens of a telescope, the dust cover 1 can rotate on the inner wall of the rotating outer ring 2, the adjusting button 10 is pressed to push the push rod 17, the supporting rod 13 slides downwards under the action of the sliding devices 14 on the two sides, the second ratchet 19 is separated from the first ratchet 16, the telescopic rod 4 can be pulled out, the moving range is ensured under the action of the sliding devices 14 and the limiting blocks 21, when the adjusting button 10 is loosened, the adjusting button 10 returns to the original position under the action of the push rod 17, the supporting rod 13 returns to the original position under the action of the first spring 15, the first ratchet 16 and the second ratchet 19 can be connected, the rotating effect of the second rotating ring 7 and the first rotating ring 6 on the outer side of the rotating shaft 8 can be matched, multi-angle adjustment of the device is completed, and the use is simple and convenient.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An objective dust cap for a telescope, comprising a dust cap (1), characterized in that: the dustproof cover is characterized in that the outer side of the dustproof cover (1) is connected with a rotating outer ring (2), one end of the rotating outer ring (2) is connected with a fixed block (3), one end of the fixed block (3) is connected with a telescopic rod (4), one end of the telescopic rod (4) is connected with a loop bar (5), one end of the loop bar (5) is connected with a first rotating ring (6), the rear end of the first rotating ring (6) is connected with a second rotating ring (7), the inside of the second rotating ring (7) is connected with a rotating shaft (8), one end of the rotating shaft (8) is connected with a fixing cap (9), the upper end of the loop bar (5) is connected with an adjusting button (10), the bottom end of the adjusting button (10) is connected with a push rod (17), the bottom end of the push rod (17) is fixedly connected with a second spring (18), a telescopic cavity (11) is arranged inside the loop bar (5), the utility model discloses a ratchet, including loop bar (5), internal connection of loop bar (5) has second ratchet (19), the internal connection of loop bar (5) has stopper (21), the one end of telescopic link (4) is connected with baffle (12), the one end of telescopic link (4) is provided with sliding chamber (20), the one end of telescopic link (4) is connected with bracing piece (13), the both ends of bracing piece (13) are connected with slider (14), the bottom of bracing piece (13) is connected with first spring (15), the upper end of bracing piece (13) is connected with first ratchet (16).

2. An objective lens dust cap for a telescope according to claim 1, wherein: the outside of shield (1) is rotated and is connected in the inboard that rotates outer ring (2), the one end fixed connection of shield (1) is in one side of fixed block (3), the other end fixed connection of fixed block (3) is in the one end of telescopic link (4).

3. An objective lens dust cap for a telescope according to claim 1, wherein: the other end swing joint of telescopic link (4) is in the one end of loop bar (5), the one end fixed connection of loop bar (5) is in the one end of first rotating ring (6), the rear end of first rotating ring (6) is rotated and is connected the front end at second rotating ring (7).

4. An objective lens dust cap for a telescope according to claim 1, wherein: the inside of first rotating ring (6) cup joints in the outside of pivot (8), the inside of fixed cap (9) is connected to the one end fixed connection of pivot (8).

5. An objective lens dust cap for a telescope according to claim 1, wherein: the upper end fixed connection of loop bar (5) is in the bottom of adjustment button (10), the bottom fixed connection of adjustment button (10) is in the upper end of push rod (17), the bottom fixed connection of push rod (17) is in the upper end of second spring (18).

6. An objective lens dust cap for a telescope according to claim 1, wherein: the one end fixed connection of telescopic link (4) is in the one end of baffle (12), the front end of telescopic link (4) is provided with slip chamber (20), the both ends sliding connection in the both ends of bracing piece (13) of slip chamber (20), the both ends fixed connection in the bottom of slider (14) of bracing piece (13), the upper end fixed connection of bracing piece (13) is in the bottom of first ratchet (16), the bottom fixed connection of bracing piece (13) is in the upper end of first spring (15).

7. An objective lens dust cap for a telescope according to claim 1, wherein: the telescopic cavity (11) is arranged inside the loop bar (5), the upper end of the telescopic cavity (11) is fixedly connected to the bottom end of the second ratchet (19), and the upper end of the second ratchet (19) is fixedly connected to the upper end of the limiting block (21).