Infrared optical lens dustproof structure

Abstract

The utility model discloses an infrared optical lens dustproof structure which comprises a lens, a lens is arranged in the lens, and the right end of the surface of the lens is fixedly connected with an installation sleeve. Through the arrangement of the rotating groove, the rotating block at the left end of the dust cover corresponds to the inserting groove and is inserted into the inserting groove, then the dust cover is rotated backwards, the rotating block can be screwed into the rotating groove, when the rotating block makes contact with the inclined face of the fixing rod, the fixing rod is squeezed leftwards to compress the spring, and when the fixing hole in the side face of the rotating block coincides with the fixing rod, the spring is compressed. When the fixing rod is inserted into the fixing hole to complete fixed mounting and dismounting, only the connecting ring needs to be pulled leftwards to drive the fixing rod to be separated from the fixing hole, the dustproof cover can be rotated forwards, the rotating block is pulled rightwards out of the slot to complete dismounting, mounting and dismounting are simple and rapid, time is saved, the working efficiency of the photographic equipment is prevented from being influenced, and the practicability is high. The dustproof structure is convenient for a user to use, and the practicability of the dustproof structure is improved.

Description

Technical Field

[0001] This utility model relates to the field of photographic equipment technology, specifically to a dustproof structure for an infrared optical lens. Background Technology

[0002] Photographic equipment is a general term encompassing cameras, lenses and related accessories, and various devices and items related to photographic activities. It includes consumables such as film, as well as photographic vests, camera bags, and other items sold by most photographic equipment dealers. The scope of photographic equipment is very broad. In addition to the well-known camera, it mainly includes various zoom lenses, prime lenses, flash units, filters for various purposes, camera bags, camera tripods, studio flash units, softboxes, various light stands, reflectors, reflector umbrellas, outdoor lights, video lights, quartz lights, lens caps, lens hoods, tripods, monopods, camera cleaning tools, shutter release cables, and so on. It also includes accessories for the above equipment.

[0003] Existing dustproof structures are often complex to install with lenses, requiring considerable time for both installation and removal. This causes maintenance difficulties, significantly reduces installation and removal efficiency, impacts the working efficiency of photographic equipment, and makes it inconvenient for users, thus diminishing the practicality of the dustproof structure. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide an infrared optical lens dustproof structure that has the advantages of convenient and quick installation and removal. This solves the problem that existing dustproof structures are generally quite complex, requiring a lot of time for installation and disassembly, which causes trouble for maintenance work, greatly reduces the efficiency of installation and removal, and affects the working efficiency of photographic equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dustproof structure for an infrared optical lens, comprising a lens, wherein a lens element is disposed inside the lens, and a mounting sleeve is fixedly connected to the right end of the lens surface. A plurality of slots are formed on the right side surface of the mounting sleeve, the slots being arranged in a circular array along the axis of the lens. Each slot has a rotating groove on its sidewall, and a rotating block is slidably connected inside each slot. Each rotating block has the same cross-sectional area as the rotating groove. A connecting block is fixedly connected to the side of each rotating block, and a fixing hole is passed through the side of each rotating block. Several springs are fixedly connected to the left side surface of the mounting sleeve. The number of springs is the same as the number of slots. The springs are arranged in a circular array along the axis of the lens. Each spring has a fixing rod inside it. The right end of each fixing rod passes through the mounting sleeve and extends into the interior of the rotary groove. The cross-sectional area of ​​the fixing rod is the same as that of the fixing hole. The sides of each fixing rod are beveled. A connecting ring is fixedly connected to the left end of each spring. The right side of each connecting ring is fixedly connected to the fixing rod. A dust cover is fixedly connected to the right end of the connecting block. A dust cap is fixedly connected inside the dust cover.

[0006] As a preferred embodiment of this utility model, a small air pump is provided at the bottom of the mounting sleeve, and the output end of the small air pump is connected to an air blowing pipe. An air blowing hole is opened at the bottom of the curved surface of the dust cover, and the air blowing pipe is connected to the air blowing hole.

[0007] As a preferred embodiment of this utility model, the top end of the air blowing pipe is fixedly connected to an air pipe connector, the bottom of the curved surface of the dust cover is provided with an internal thread groove, the internal thread groove is connected to the air blowing hole and located on the same center line, and the air pipe connector is located inside the internal thread groove and is threadedly connected to it.

[0008] In a preferred embodiment of this invention, a first annular sealing ring and a second annular sealing ring are fixedly connected to the right side of the mounting sleeve. The first annular sealing ring is located on the outside of the slot, and the second annular sealing ring is located on the inside of the slot. The first annular sealing ring and the second annular sealing ring are concentrically arranged.

[0009] As a preferred embodiment of this utility model, a plurality of sliding pillars are fixedly connected to the left end of the mounting sleeve. The sliding pillars are arranged in a circular array along the axis of the lens. The left end of each sliding pillar extends through to the left side of the connecting ring and is slidably connected thereto. A circular plate is fixedly connected to the left end of each sliding pillar, and a pull plate is fixedly connected to the top of the connecting ring.

[0010] As a preferred embodiment of this utility model, mounting plates are fixedly connected to both sides of the bottom of the curved surface of the mounting sleeve, and round holes are opened on the sides of the mounting plates. The mounting plates are fitted onto the surface of the small air pump through the round holes and are fixedly connected to it.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, through the setting of the swivel groove, allows for easy installation of the dust cover and dust cap on the right end of the mounting sleeve. First, align the swivel block and connecting block on the left end of the dust cover with the slot and insert them inside. Then, rotate the entire dust cover backward, causing the swivel block to screw into the swivel groove. When the swivel block contacts the inclined surface of the fixing rod, it will press the fixing rod to the left, compressing the spring. When the fixing hole on the side of the swivel block coincides with the fixing rod, the fixing rod will insert into the fixing hole to complete the fixed installation. For disassembly, simply pull the connecting ring to the left, causing it to disengage from the fixing hole. Then, rotate the dust cover forward and pull the swivel block out of the slot to the right to complete the disassembly. The installation and disassembly are simple and quick, saving time and preventing any impact on the working efficiency of the photographic equipment. This facilitates user operation and improves the practicality of the dustproof structure.

[0013] 2. This utility model incorporates a small air pump. When the small air pump is activated, it injects air into the inside of the dust cover through the air pipe and air hole. At this time, the air pressure inside the dust cover will be greater than that outside, thereby preventing external dust from entering the dust cover through air circulation and contaminating the lens, thus further improving the dustproof effect of the structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a front sectional view of the structural mounting sleeve and dust cover of this utility model;

[0016] Figure 3 This is a front sectional view of the rotating block of this utility model;

[0017] Figure 4 This is a side sectional view of the structural mounting sleeve of this utility model;

[0018] Figure 5 The structure of this utility model Figure 2 An enlarged diagram of A in the diagram.

[0019] In the diagram: 1. Lens; 2. Lens element; 3. Mounting sleeve; 4. Slot; 5. Rotary groove; 6. Rotary block; 7. Connecting block; 8. Fixing hole; 9. Spring; 10. Fixing rod; 11. Connecting ring; 12. Dust cover; 13. Dust cap; 14. Mounting plate; 15. Small air pump; 16. Air blowing pipe; 17. Air blowing hole; 18. Air pipe connector; 19. Internal threaded groove; 20. First annular sealing ring; 21. Second annular sealing ring; 22. Sliding column; 23. Pull plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1 to 5 As shown, an infrared optical lens dustproof structure includes a lens 1, with a lens 2 disposed inside the lens 1. A mounting sleeve 3 is fixedly connected to the right end of the surface of the lens 1. Several slots 4 are formed on the right side surface of the mounting sleeve 3, arranged in a circular array along the axis of the lens 1. Each slot 4 has a swivel groove 5 on its side wall. A swivel block 6 is slidably connected inside each slot 4, and the cross-sectional area of ​​each swivel block 6 is the same as that of the swivel groove 5. A connecting block 7 is fixedly connected to the side of each swivel block 6, and a fixing hole 8 is passed through the side of each swivel block 6. Several... There are 9 springs, the same number as slots 4. The springs 9 are arranged in a ring array along the axis of lens 1. Each spring 9 has a fixing rod 10 inside. The right end of each fixing rod 10 passes through the mounting sleeve 3 and extends into the interior of the rotary groove 5. The cross-sectional area of ​​the fixing rod 10 is the same as that of the fixing hole 8. The sides of each fixing rod 10 are set as bevels. The left end of each spring 9 is fixedly connected to a connecting ring 11. The right side of each connecting ring 11 is fixedly connected to the fixing rod 10. The right end of the connecting block 7 is fixedly connected to a dust cover 12. The inside of the dust cover 12 is fixedly connected to a dust cap 13.

[0022] refer to Figure 2 The bottom of the mounting sleeve 3 is equipped with a small air pump 15, the output end of the small air pump 15 is connected to an air blowing pipe 16, and the bottom of the curved surface of the dust cover 12 is provided with an air blowing hole 17, and the air blowing pipe 16 is connected to the air blowing hole 17.

[0023] As a technical optimization of this utility model, by setting up a small air pump 15, the small air pump 15 is started to fill the inside of the dust cover 12 with air through the air pipe 16 and the air hole 17. At this time, the air pressure inside the dust cover 12 will be greater than that outside, thereby preventing external dust from entering the inside of the dust cover 12 through air circulation and causing contamination to the lens 2, thereby further improving the dustproof effect of the structure.

[0024] refer to Figure 5 The top end of the air blowing pipe 16 is fixedly connected to the air pipe connector 18. The bottom of the curved surface of the dust cover 12 is provided with an internal thread groove 19. The internal thread groove 19 is connected to the air blowing hole 17 and is located on the same center line. The air pipe connector 18 is located inside the internal thread groove 19 and is threadedly connected to it.

[0025] As a technical optimization of this utility model, by setting the air pipe connector 18, when the dust cover 12 is loaded and unloaded, the air pipe connector 18 can be rotated to make it screw out and screw into the internal thread groove 19, thereby separating and connecting the air blowing pipe 16 with the air blowing hole 17, thus avoiding the situation where the air blowing pipe 16 obstructs the loading and unloading of the dust cover 12.

[0026] refer to Figure 5 The right side of the mounting sleeve 3 is fixedly connected with a first annular sealing ring 20 and a second annular sealing ring 21. The first annular sealing ring 20 is located on the outside of the slot 4, and the second annular sealing ring 21 is located on the inside of the slot 4. The first annular sealing ring 20 and the second annular sealing ring 21 are concentrically arranged.

[0027] As a technical optimization of this utility model, the sealing effect between the mounting sleeve 3 and the dust cover 12 is improved by setting the second annular sealing ring 21, thereby avoiding the rapid loss of airflow output from the air blowing pipe 16 and reducing the loss of airflow at the output end.

[0028] refer to Figure 3 The left end of the mounting sleeve 3 is fixedly connected to several sliding pillars 22. The sliding pillars 22 are arranged in a ring array along the axis of the lens 1. The left end of each sliding pillar 22 passes through to the left side of the connecting ring 11 and is slidably connected thereto. The left end of each sliding pillar 22 is fixedly connected to a circular plate. The top of the connecting ring 11 is fixedly connected to a pull plate 23.

[0029] As a technical optimization of this utility model, by setting up the sliding column 22 and the pull plate 23, when the connecting ring 11 is pulled, it will not be difficult for some fixing rods 10 to completely detach from the fixing hole 8 due to uneven force and skewness. This makes it more stable when the connecting ring 11 is pulled for disassembly and will not have the problem of skewness.

[0030] refer to Figure 1 Mounting plates 14 are fixedly connected to both sides of the bottom of the curved surface of mounting sleeve 3. The sides of mounting plates 14 are provided with round holes. Mounting plates 14 are fitted onto the surface of small air pump 15 through the round holes and are fixedly connected to it.

[0031] As a technical optimization of this utility model, the mounting plate 14 provides a limiting and fixing for the small air pump 15, making it more stable during operation, thereby ensuring the overall stability of the structure.

[0032] The working principle and usage process of this utility model are as follows: In use, the user first aligns the rotating block 6 and connecting block 7 on the left end of the dust cover 12 with the slot 4 and inserts them inside. Then, the dust cover 12 is rotated backward as a whole. The dust cover 12 will then drive the rotating block 6 and connecting block 7 to rotate backward, causing the rotating block 6 to rotate into the rotating groove 5. When the rotating block 6 contacts the inclined surface of the fixing rod 10, it will press the fixing rod 10 to the left, compressing the spring 9. When the fixing hole 8 on the side of the rotating block 6 aligns with the fixing rod 10, the fixing rod 10 will be inserted into the fixing hole 8 completely. After securing the dust cover 12 to a fixed position, screw the air pipe connector 18 into the internal threaded groove 19 and start the small air pump 15. Pump airflow into the small air pump 15 through the air pipe 16 and air hole 17 to make the air pressure inside the dust cover 12 greater than the outside for dust protection. When disassembly is required, first screw the air pipe connector 18 out of the internal threaded groove 19 and pull the pull plate 23 to move the connecting ring 11 to the left, so that it drives the fixing rod 10 to disengage from the fixing hole 8. Then, rotate the dust cover 12 forward and pull the rotating block 6 out of the slot 4 to complete the disassembly.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dustproof structure for an infrared optical lens, comprising a lens (1), characterized in that: The lens (1) has a lens (2) inside. A mounting sleeve (3) is fixedly connected to the right end of the surface of the lens (1). Several slots (4) are opened on the right side surface of the mounting sleeve (3). The slots (4) are arranged in a circular array along the axis of the lens (1). Rotary grooves (5) are opened on the side walls of the slots (4). Rotary blocks (6) are slidably connected inside the slots (4). The cross-sectional area of ​​each rotary block (6) is the same as that of the rotary groove (5). Connecting blocks (7) are fixedly connected to the side of each rotary block (6). Fixing holes (8) are passed through the side of each rotary block (6). Several springs (9) are fixedly connected to the left side surface of the mounting sleeve (3). The number of springs (9) is the same as that of slots (4). The springs (9) are arranged in a ring array along the axis of the lens (1). Each spring (9) has a fixing rod (10) inside. The right end of each fixing rod (10) passes through the mounting sleeve (3) and extends into the interior of the swivel groove (5). The cross-sectional area of ​​the fixing rod (10) is the same as that of the fixing hole (8). The sides of each fixing rod (10) are set as inclined surfaces. The left end of each spring (9) is fixedly connected to a connecting ring (11). The right side of each connecting ring (11) is fixedly connected to the fixing rod (10). The right end of each connecting block (7) is fixedly connected to a dust cover (12). The inside of the dust cover (12) is fixedly connected to a dust cover (13).

2. The dustproof structure for an infrared optical lens according to claim 1, characterized in that: The bottom of the mounting sleeve (3) is provided with a small air pump (15), the output end of the small air pump (15) is connected to an air blowing pipe (16), and the bottom of the curved surface of the dust cover (12) is provided with an air blowing hole (17), and the air blowing pipe (16) is connected to the air blowing hole (17).

3. The dustproof structure for an infrared optical lens according to claim 2, characterized in that: The top end of the air blowing pipe (16) is fixedly connected to an air pipe connector (18). The bottom of the curved surface of the dust cover (12) is provided with an internal thread groove (19). The internal thread groove (19) is connected to the air blowing hole (17) and located on the same center line. The air pipe connector (18) is located inside the internal thread groove (19) and is threadedly connected to it.

4. The dustproof structure for an infrared optical lens according to claim 1, characterized in that: The right side of the mounting sleeve (3) is fixedly connected with a first annular sealing ring (20) and a second annular sealing ring (21). The first annular sealing ring (20) is located on the outside of the slot (4), and the second annular sealing ring (21) is located on the inside of the slot (4). The first annular sealing ring (20) and the second annular sealing ring (21) are concentrically arranged.

5. The dustproof structure for an infrared optical lens according to claim 1, characterized in that: The left end of the mounting sleeve (3) is fixedly connected to several sliding columns (22). The sliding columns (22) are arranged in a ring array along the axis of the lens (1). The left end of each sliding column (22) passes through to the left side of the connecting ring (11) and is slidably connected thereto. The left end of each sliding column (22) is fixedly connected to a circular plate. The top of the connecting ring (11) is fixedly connected to a pull plate (23).

6. The dustproof structure for an infrared optical lens according to claim 2, characterized in that: Mounting plates (14) are fixedly connected to both sides of the bottom of the curved surface of the mounting sleeve (3). The sides of the mounting plates (14) are provided with round holes. The mounting plates (14) are fitted onto the surface of the small air pump (15) through the round holes and are fixedly connected to it.

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