Telescope barrel structure
By designing structures such as dustproof covers, dustproof glass plates, and corrugated tubes, the problem of dust entering the monocular telescope was solved, achieving both dustproof protection of the telescope tube and clear imaging.
Patent Information
- Application Number
- CN202520141492.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Dust from the external environment can easily enter the inner tube of a monocular telescope through gaps, affecting the use of the eyepiece and objective lens and resulting in unclear images.
A telescope tube structure was designed, including an outer tube and an inner tube. The inner tube can move linearly and is equipped with a dust cover and a dustproof glass plate. Combined with a bellows and a rubber ring, it achieves a dustproof effect and achieves linear guidance through a retaining ring and a guide block.
It effectively prevents dust from entering the lens barrel, keeps the eyepiece and objective lens clean, ensures clear imaging, and has dustproof and adjustment functions.
Smart Images
Figure CN223650793U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of telescope technology, specifically a telescope barrel structure. Background Technology
[0002] The basic principle of a monocular telescope is similar to other types of telescopes: it collects light from a distance through an objective lens, focuses the light to a point, and then magnifies the image through an eyepiece. Because it has only one optical system, a monocular telescope can only be used to observe a target with one eye.
[0003] Monoculars use retractable inner and outer tubes to adjust the distance between the objective and eyepiece to ensure a clear image. However, dust from the external environment can easily enter the outer and inner tubes through gaps. Over time, this can affect the use of the eyepiece and objective, resulting in a less clear image. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this invention provides a telescope tube structure that solves the problems mentioned in the background section.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a telescope tube structure, comprising an outer tube and an inner tube movably inserted into the outer tube. A detachable objective lens body is provided at the end of the outer tube, and an objective lens dust cover is threaded onto the end of the outer tube. An objective lens glass plate is fixedly connected to the inner ring of the objective lens dust cover, and the end of the objective lens dust cover abuts against the objective lens body. A detachable eyepiece body is provided at the end of the inner tube, and an eyepiece dust cover is threaded onto the end of the inner tube. An eyepiece glass plate is fixedly connected to the inner ring of the eyepiece dust cover, and the eyepiece dust cover abuts against the eyepiece body. A retaining ring is fixedly connected to the outer wall of the inner tube, and a corrugated tube is fixedly connected between the retaining ring and the end of the outer tube.
[0008] Preferably, the inner wall of the outer cylinder is provided with a sliding groove, and a guide block is fixedly connected to the outer circumferential side wall of the inner cylinder, the guide block being slidably disposed inside the sliding groove.
[0009] Preferably, there are two slides, which are symmetrically distributed vertically.
[0010] Preferably, a rubber ring is fixedly connected to the outer wall of the inner cylinder, and the rubber ring is located on one side of the slide groove.
[0011] Preferably, an eyepiece retaining ring is fixedly connected inside the inner cylinder, and the eyepiece body is in contact with the eyepiece retaining ring.
[0012] Preferably, an objective lens retaining ring is fixedly connected inside the outer cylinder, and the objective lens body is in contact with the objective lens retaining ring.
[0013] (III) Beneficial Effects
[0014] This utility model provides a telescope tube structure, which has the following beneficial effects:
[0015] 1. In this utility model, the inner cylinder can move linearly inside the outer cylinder, causing the distance between the eyepiece body and the objective lens body to change, thereby adjusting the imaging; during the traction of the inner cylinder, the bellows provides dustproof treatment to the gap between the outer cylinder and the inner cylinder, preventing dust from entering the interior of the outer cylinder and the inner cylinder, ensuring the normal use of the eyepiece body and the objective lens body; and a rubber ring is provided to achieve secondary dustproofing.
[0016] 2. In this utility model, the objective lens body is protected from dust by using the objective lens dust cover and the objective lens glass plate, and the eyepiece body is protected from dust by using the eyepiece glass plate and the eyepiece dust cover. Attached Figure Description
[0017] Figure 1 This is a front-view three-dimensional structural diagram of a telescope barrel structure proposed in this utility model;
[0018] Figure 2 This is an exploded three-dimensional structural diagram of a telescope barrel structure proposed in this utility model;
[0019] Figure 3 This is a cross-sectional perspective view of a telescope barrel structure proposed in this utility model;
[0020] Figure 4 for Figure 2 Enlarged structural diagram at point A.
[0021] In the diagram: 1. Outer cylinder; 101. Slide groove; 2. Inner cylinder; 3. Guide block; 4. Rubber ring; 5. Eyepiece retaining ring; 6. Eyepiece dust cover; 7. Eyepiece body; 8. Eyepiece glass plate; 9. Bellows; 10. Objective retaining ring; 11. Objective body; 12. Objective dust cover; 13. Objective glass plate; 14. Retaining ring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Please see Figures 1 to 4This utility model provides a technical solution: a telescope tube structure, including an outer tube 1 and an inner tube 2 movably inserted inside the outer tube 1. A detachable objective lens body 11 is provided at the end of the outer tube 1, and an objective lens dust cover 12 is threadedly provided at the end of the outer tube 1. An objective lens glass plate 13 is fixedly connected to the inner ring of the objective lens dust cover 12, and the objective lens glass plate 13 is used to prevent dust from the objective lens body 11. The end of the objective lens dust cover 12 is in contact with the objective lens body 11. A detachable eyepiece body 7 is provided at the end of the inner tube 2, and an eyepiece dust cover 6 is threadedly provided at the end of the inner tube 2. An eyepiece glass plate 8 is fixedly connected to the inner ring of the eyepiece dust cover 6, and the eyepiece glass plate 8 is used to prevent dust from the eyepiece body 7. The eyepiece dust cover 6 is in contact with the eyepiece body 7. A retaining ring 14 is fixedly connected to the outer wall of the inner tube 2, and a bellows 9 is fixedly connected between the retaining ring 14 and the end of the outer tube 1.
[0024] The inner cylinder 2 can move linearly inside the outer cylinder 1, causing the distance between the eyepiece body 7 and the objective lens body 11 to change, thereby adjusting the imaging. During the pulling process of the inner cylinder 2, the bellows 9 provides dustproof treatment to the gap between the outer cylinder 1 and the inner cylinder 2, preventing dust from entering the interior of the outer cylinder 1 and the inner cylinder 2, and ensuring the normal use of the eyepiece body 7 and the objective lens body 11.
[0025] The inner wall of the outer cylinder 1 is provided with a sliding groove 101, and the outer circumferential side wall of the inner cylinder 2 is fixedly connected with a guide block 3, which is slidably disposed inside the sliding groove 101.
[0026] The cooperation between the guide block 3 and the slide groove 101 achieves the purpose of linear guidance of the inner cylinder 2, so that the inner cylinder 2 can only move along a straight line.
[0027] Furthermore, there are two slides 101, which are symmetrically distributed vertically.
[0028] A rubber ring 4 is fixedly connected to the outer wall of the inner cylinder 2, and the rubber ring 4 is located on one side of the slide groove 101;
[0029] Furthermore, a rubber ring 4 is installed to achieve secondary dust prevention, and to prevent dust from entering the gap between the outer cylinder 1 and the inner cylinder 2.
[0030] An eyepiece retaining ring 5 is fixedly connected inside the inner cylinder 2. The eyepiece body 7 abuts against the eyepiece retaining ring 5 to limit the position of the eyepiece body 7. Furthermore, by rotating the eyepiece dust cover 6, the eyepiece dust cover 6 is pressed tightly against the eyepiece body 7.
[0031] An objective lens retaining ring 10 is fixedly connected inside the outer cylinder 1. The objective lens body 11 abuts against the objective lens retaining ring 10 to limit the position of the objective lens body 11. The objective lens dust cover 12 is rotated to press the objective lens body 11 tightly.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A telescope tube structure, characterized in that: The device includes an outer cylinder (1) and an inner cylinder (2) movably inserted inside the outer cylinder (1). The outer cylinder (1) has a detachable objective lens body (11) at its end and an objective lens dust cover (12) threaded onto its end. An objective lens glass plate (13) is fixedly connected to the inner ring of the objective lens dust cover (12). The end of the objective lens dust cover (12) is in contact with the objective lens body (11). The inner cylinder (2) has a detachable eyepiece body (7) at its end and an eyepiece dust cover (6) threaded onto its end. An eyepiece glass plate (8) is fixedly connected to the inner ring of the eyepiece dust cover (6). The eyepiece dust cover (6) is in contact with the eyepiece body (7). A retaining ring (14) is fixedly connected to the outer wall of the inner cylinder (2). A bellows (9) is fixedly connected between the retaining ring (14) and the end of the outer cylinder (1).
2. The telescope tube structure according to claim 1, characterized in that: The inner wall of the outer cylinder (1) is provided with a sliding groove (101), and the outer circumferential side wall of the inner cylinder (2) is fixedly connected with a guide block (3), which is slidably disposed inside the sliding groove (101).
3. The telescope tube structure according to claim 2, characterized in that: There are two slides (101), and the slides (101) are symmetrically distributed vertically.
4. The telescope tube structure according to claim 2, characterized in that: A rubber ring (4) is fixedly connected to the outer wall of the inner cylinder (2), and the rubber ring (4) is located on one side of the slide groove (101).
5. The telescope tube structure according to claim 1, characterized in that: An eyepiece retaining ring (5) is fixedly connected inside the inner cylinder (2), and the eyepiece body (7) is in contact with the eyepiece retaining ring (5).
6. The telescope tube structure according to claim 1, characterized in that: The objective lens retainer ring (10) is fixedly connected inside the outer cylinder (1), and the objective lens body (11) is in contact with the objective lens retainer ring (10).