High-precision far-infrared range finder lens module with anti-impact

Abstract

The utility model provides a high accuracy far infrared range finder lens module with anti -impact, including range finder lens module seat, the one side of range finder lens module seat is equipped with the protective cover, the one side surface of range finder lens module seat is opened with annular thread groove, the inner wall of annular thread groove is connected with the thread fixed cover, the outer surface of thread fixed cover is fixedly connected with the inner ring of protective cover, the inner wall of protective cover is fixedly connected with the spring of annular arrangement, the one side of protective cover is equipped with the buffer cover, relate far infrared range finder lens field, the utility model discloses the elasticity of spring, can convert impact force into elastic potential energy, play the role of the impact buffer when falling, through the setting of silica gel protective pad, can absorb the impact force of the outside of protective cover, then can make the amplitude of the vibration that lens main part suffers reduces, avoids the problem, such as the edge of lens lens piece is broken, plating film is scratched, improves the protection effect to lens main body.

Description

Technical Field

[0001] This utility model relates to the field of far-infrared rangefinder lenses, specifically a high-precision far-infrared rangefinder lens module with impact resistance. Background Technology

[0002] An infrared rangefinder lens is an optical component specifically designed to capture and focus far-infrared light. It is the core component of an infrared rangefinder. It uses special infrared optical materials to make lens groups and a coating process to reduce infrared light reflection loss. It can accurately focus the far-infrared light radiated or reflected by the target object and then transmit it to the range sensor to complete the distance measurement. This type of lens is widely used in industrial inspection, security monitoring, outdoor surveying and other scenarios. Especially at night or in complex lighting conditions, it maintains stable ranging accuracy due to its high sensitivity to infrared signals.

[0003] However, due to the low hardness of infrared optical materials and the need for the lens structure to ensure high infrared light transmittance, traditional far-infrared rangefinder lenses usually lack protective structures. This can lead to problems such as lens chipping and coating scratches when the lens is subjected to drops or impacts, affecting the infrared light focusing accuracy and causing increased ranging errors or even equipment failure. To address these issues, we propose a high-precision far-infrared rangefinder lens module with impact protection. Utility Model Content

[0004] The purpose of this utility model is to provide a high-precision far-infrared rangefinder lens module with impact resistance, so as to solve the problems mentioned in the background art and overcome its technical defects.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a high-precision far-infrared rangefinder lens mold with impact resistance, including a rangefinder lens mold base, a protective cover on one side of the rangefinder lens mold base, an annular threaded groove on one side of the rangefinder lens mold base, a threaded fixing cover threadedly connected to the inner wall of the annular threaded groove, the outer surface of the threaded fixing cover being fixedly connected to the inner ring of the protective cover, annularly arranged springs being fixedly connected to the inner wall of the protective cover, a buffer cover on one side of the protective cover, and a transparent protective plate being fixedly connected to the inner wall of the buffer cover.

[0006] Preferably, the inner ring of the buffer cover is slidably connected to the outer surface of the threaded fixing cover, and one end of each spring is fixedly connected to one side of the buffer cover.

[0007] Preferably, the outer surface of the protective cover has two limiting holes, and the outer surface of the buffer cover is fixedly connected to two limiting blocks. The ends of the two limiting blocks that are far apart from each other extend into the interior of the two limiting holes, and the outer surfaces of the two limiting blocks are slidably connected to the inner walls of the two limiting holes.

[0008] Preferably, an annular buffer pad is fixedly connected to the inner wall of the annular threaded groove, and one end of the threaded fixing cover is in contact with one side of the annular buffer pad.

[0009] Preferably, the outer surface of the protective cover is fixedly connected to two silicone protective pads, and the outer surface of the two silicone protective pads is provided with multiple anti-slip recesses.

[0010] Preferably, the outer surface of the rangefinder lens mount is fixedly connected to two fasteners, each of which has two fixing holes on one side, and the inner wall of the rangefinder lens mount is provided with a lens fixing threaded groove.

[0011] Compared with the prior art, the beneficial effects of this utility model include: the transparent protective plate set inside the buffer cover can block the intrusion of dust and impurities and avoid the infrared light loss caused by traditional protective structures. In addition, when the buffer cover is impacted, it can slide along the surface of the threaded fixed cover, and the elastic force of the spring can convert the impact force into elastic potential energy, which plays a role in cushioning the impact when falling. The silicone protective pad can absorb the impact force from the outside of the protective cover, thereby reducing the amplitude of vibration on the lens body, avoiding problems such as lens chipping and coating scratches, and improving the protection effect on the lens body. Attached Figure Description

[0012] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the front;

[0014] Figure 2 This is a frontal sectional view of the present invention;

[0015] Figure 3 This is an exploded structural diagram of the protective cover and rangefinder lens mount of this utility model;

[0016] Figure 4 This is a side sectional view of the protective cover of this utility model;

[0017] The following are labeled in the diagram: 1. Rangefinder lens mount; 2. Protective cover; 3. Annular threaded groove; 4. Threaded fixing cover; 5. Buffer cover; 6. Transparent protective plate; 7. Spring; 8. Limiting hole; 9. Limiting block; 10. Silicone protective pad; 11. Anti-slip concave hole; 12. Fixing component; 13. Fixing hole; 14. Lens fixing threaded groove; 15. Annular buffer pad. Detailed Implementation

[0018] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0019] According to one embodiment of the present invention, in conjunction with the appendix Figure 1-4 As shown.

[0020] A high-precision far-infrared rangefinder lens mold with impact resistance includes a rangefinder lens mold base 1. A protective cover 2 is provided on one side of the rangefinder lens mold base 1. An annular threaded groove 3 is opened on one side of the rangefinder lens mold base 1. A threaded fixing cover 4 is threadedly connected to the inner wall of the annular threaded groove 3. The outer surface of the threaded fixing cover 4 is fixedly connected to the inner ring of the protective cover 2. A ring-shaped arrangement of springs 7 is fixedly connected to the inner wall of the protective cover 2. A buffer cover 5 is provided on one side of the protective cover 2. A transparent protective plate 6 is fixedly connected to the inner wall of the buffer cover 5. The transparent protective plate 6 is made of calcium fluoride or zinc selenide, which has both high infrared light transmittance and high hardness, is impact-resistant and does not affect the ranging accuracy. Through the threaded connection between the annular threaded groove 3 and the threaded fixing cover 4, the protective cover 2 and the rangefinder lens mold base 1 can be tightly combined to form a protective frame.

[0021] In this embodiment, the inner ring of the buffer cover 5 is slidably connected to the outer surface of the threaded fixing cover 4. One end of each spring 7 is fixedly connected to one side of the buffer cover 5. Two limiting holes 8 are opened on the outer surface of the protective cover 2. Two limiting blocks 9 are fixedly connected to the outer surface of the buffer cover 5. The ends of the two limiting blocks 9 that are far apart from each other extend into the interior of the two limiting holes 8. The outer surfaces of the two limiting blocks 9 are slidably connected to the inner walls of the two limiting holes 8. When the buffer cover 5 is impacted, the spring 7 absorbs the impact force through extension and contraction deformation, thereby achieving buffering. In addition, the sliding cooperation between the inner ring of the buffer cover 5 and the threaded fixing cover 4 can provide guidance for the buffering movement. The sliding cooperation between the limiting holes 8 and the limiting blocks 9 plays a limiting role during reset.

[0022] In this embodiment, an annular buffer pad 15 is fixedly connected to the inner wall of the annular threaded groove 3. One end of the threaded fixing cover 4 contacts one side of the annular buffer pad 15. Two silicone protective pads 10 are fixedly connected to the outer surface of the protective cover 2. Multiple anti-slip recesses 11 are provided on the outer surface of the two silicone protective pads 10. Two fixing members 12 are fixedly connected to the outer surface of the rangefinder lens mold base 1. Two fixing holes 13 are provided on one side of each of the two fixing members 12. A lens fixing threaded groove 14 is provided on the inner wall of the rangefinder lens mold base 1. Through the silicone protective pads 10 and the anti-slip recesses 11 on the surface, the side impact force can be absorbed through elastic deformation. It can also increase the friction when holding or installing to prevent accidental slippage. Through the cooperation of the fixing members 12 and the fixing holes 13 with the lens fixing threaded groove 14, a standardized interface can be provided for the connection between the lens mold and the rangefinder body to ensure the overall stability after assembly and avoid the impact of loosening on the ranging accuracy during use.

[0023] Working principle: First, the lens body is installed inside the rangefinder lens mold 1 through the lens fixing threaded groove 14. When far-infrared rays irradiate the target object, the reflected light passes through the transparent protective plate 6 inside the buffer cover 5 and then enters the distance measurement. When the buffer cover 5 is hit by an external force, the impact force on its outer surface first pushes the buffer cover 5 to slide along the surface of the threaded fixing cover 4. At this time, the ring-shaped springs 7 are compressed, which can convert part of the impact force into elastic potential energy. The limiting block 9 slides along the limiting hole 8 to prevent the buffer cover 5 from shifting and causing structural jamming. If the impact force is transmitted to the protective cover 2, the silicone protective pad 10 absorbs the vibration energy and reduces the vibration of the lens body inside the rangefinder lens mold 1.

[0024] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A high-precision far-infrared rangefinder lens module with impact resistance, characterized in that, The device includes a rangefinder lens mount (1), a protective cover (2) on one side of the rangefinder lens mount (1), an annular threaded groove (3) on one side of the rangefinder lens mount (1), a threaded fixing cover (4) threadedly connected to the inner wall of the annular threaded groove (3), the outer surface of the threaded fixing cover (4) being fixedly connected to the inner ring of the protective cover (2), annularly arranged springs (7) being fixedly connected to the inner wall of the protective cover (2), a buffer cover (5) on one side of the protective cover (2), and a transparent protective plate (6) being fixedly connected to the inner wall of the buffer cover (5).

2. The high-precision far-infrared rangefinder lens module with impact resistance according to claim 1, characterized in that, The inner ring of the buffer cover (5) is slidably connected to the outer surface of the threaded fixing cover (4), and one end of each spring (7) is fixedly connected to one side of the buffer cover (5).

3. The high-precision far-infrared rangefinder lens module with impact resistance according to claim 1, characterized in that, The outer surface of the protective cover (2) has two limiting holes (8), and the outer surface of the buffer cover (5) is fixedly connected with two limiting blocks (9).

4. A high-precision far-infrared rangefinder lens module with impact resistance according to claim 1, characterized in that, An annular buffer pad (15) is fixedly connected to the inner wall of the annular threaded groove (3), and one end of the threaded fixing cover (4) is in contact with one side of the annular buffer pad (15).

5. A high-precision far-infrared rangefinder lens module with impact resistance according to claim 1, characterized in that, Two silicone protective pads (10) are fixedly connected to the outer surface of the protective cover (2), and multiple anti-slip recesses (11) are opened on the outer surface of the two silicone protective pads (10).

6. A high-precision far-infrared rangefinder lens module with impact resistance according to claim 3, characterized in that, The ends of the two limiting blocks (9) that are far apart from each other extend into the interior of the two limiting holes (8), and the outer surfaces of the two limiting blocks (9) are slidably connected to the inner walls of the two limiting holes (8).

7. A high-precision far-infrared rangefinder lens module with impact resistance according to claim 1, characterized in that, Two fasteners (12) are fixedly connected to the outer surface of the rangefinder lens mount (1), and two fixing holes (13) are opened on one side of each of the two fasteners (12).

8. A high-precision far-infrared rangefinder lens module with impact resistance according to claim 1, characterized in that, The inner wall of the rangefinder lens mount (1) is provided with a lens fixing threaded groove (14).

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