Infrared athermalization lens convenient to install

Abstract

The utility model discloses a convenient-to-install infrared athermalization lens, which belongs to the technical field of infrared athermalization lenses and comprises a lens body, an infrared athermalization lens, an infrared athermalization lens, an infrared athermalization lens, and a connecting seat arranged at the rear end of the lens body. The connecting screw pipe is an external thread pipe, and the connecting base is sleeved with the connecting screw pipe; the pneumatic limiting mechanism is arranged in the connecting screw tube, and the pneumatic limiting mechanism is connected with the connecting seat in a clamping manner and extends to the outer part of the connecting screw tube; according to the utility model, by selecting the connecting screw tube adapting to the specification of the detector, connecting the connecting screw tube with the detector in a screw joint manner, sleeving the connecting screw tube and the detector on the connecting seat together, and triggering the pneumatic limiting mechanism, the mutual limiting among the connecting screw tube, the detector and the connecting seat can be realized, so that the infrared athermalization lens is convenient to install; even if the lens is used in a vibration environment, the connecting solenoid and the detector are not easy to loosen, and the installation failure of the infrared athermalization lens is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of infrared athermalized lens technology, and particularly relates to an infrared athermalized lens that is easy to install. Background Technology

[0002] An infrared athermal lens is an optical system designed specifically for the infrared band. Its core feature is that it maintains stable imaging performance over a wide temperature range through special materials and structural design, without relying on external temperature control equipment.

[0003] Currently, infrared athermalized lenses are usually directly screwed onto the detector. If the application environment is in a vibrating environment, the screw connection may loosen, leading to the failure of the infrared athermalized lens installation. Utility Model Content

[0004] The purpose of this utility model is to provide an easy-to-install infrared pyrotechnic lens in order to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an easy-to-install infrared pyrolysis lens, comprising:

[0006] The lens body is an infrared athermalized lens, and a connector is provided at the rear end of the lens body;

[0007] A connecting threaded tube is provided, which is an externally threaded tube, and the connecting threaded tube is sleeved on the connecting seat;

[0008] A pneumatic limiting mechanism is provided inside the connecting screw tube, the pneumatic limiting mechanism engages with the connecting seat and extends to the outside of the connecting screw tube.

[0009] As a further description of the above technical solution:

[0010] The connector is provided with multiple limiting strips, and the inner wall of the connecting screw tube is provided with multiple limiting grooves, and the limiting strips are inserted into the corresponding limiting grooves.

[0011] As a further description of the above technical solution:

[0012] The pneumatic limiting mechanism includes an air filling / discharging valve and multiple pistons. A main air passage is provided inside the connecting spiral tube. Multiple blind holes are provided on both the inner and outer walls of the connecting spiral tube. The blind holes are connected to the main air passage through transition holes. The multiple pistons are slidably connected in the multiple blind holes. The air filling / discharging valve is connected to the outer wall of the connecting spiral tube and is connected to the main air passage. Multiple limiting holes are provided on the surface of the connecting seat. Part of the pistons are inserted into the multiple limiting holes.

[0013] As a further description of the above technical solution:

[0014] The piston is provided with an anti-slip pad at its end.

[0015] As a further description of the above technical solution:

[0016] The diameter of the transition hole is smaller than the diameter of the blind hole, and the outer wall of the piston abuts against the inner wall of the corresponding blind hole.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0018] 1. In this utility model, by selecting a connecting screw tube that is suitable for the detector specifications, screwing the connecting screw tube to the detector, and then fitting the connecting screw tube and the detector together onto the connecting seat, the pneumatic limiting mechanism is triggered, which can realize the mutual limiting between the connecting screw tube, the detector and the connecting seat, making the infrared athermalized lens easy to install. Even if the lens is used in a vibration environment, the connecting screw tube and the detector will not easily loosen, avoiding the failure of the infrared athermalized lens installation.

[0019] 2. In this utility model, air is injected into the main air passage through the air filling and emptying valve. Under the action of air pressure, a part of the piston slides into the corresponding limiting hole in the blind hole to complete the mutual limiting between the connecting seat and the connecting screw tube. The other part of the piston slides in the blind hole to abut against the detector that is screwed to the connecting screw tube, thereby effectively preventing the connection between the connecting screw tube and the detector from failing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an infrared athermalized lens that is easy to install.

[0021] Figure 2 An exploded view of an infrared athermalized lens that is easy to install.

[0022] Figure 3 This is a cross-sectional view of an infrared athermalized lens that is easy to install.

[0023] Figure 4 for Figure 3 A magnified view of part A in the middle.

[0024] Figure 5 for Figure 4 The usage status is shown in the diagram.

[0025] Legend:

[0026] 1. Lens body; 2. Connecting seat; 3. Connecting screw tube; 4. Pneumatic limiting mechanism; 41. Inflation / discharge valve; 42. Piston; 5. Limiting strip; 6. Limiting groove; 7. Main air passage; 8. Blind hole; 9. Transition hole; 10. Limiting hole; 11. Anti-slip pad. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 This utility model provides a technical solution: an easy-to-install infrared pyrotechnic lens, comprising:

[0029] The lens body 1 is an infrared non-thermal lens, and a connecting seat 2 is provided at the rear end of the lens body 1.

[0030] The connecting screw tube 3 is an externally threaded tube, and the connecting screw tube 3 is sleeved on the connecting seat 2;

[0031] A pneumatic limiting mechanism 4 is disposed inside the connecting screw tube 3. The pneumatic limiting mechanism 4 engages with the connecting seat 2 and extends to the outside of the connecting screw tube 3.

[0032] The connecting seat 2 is provided with multiple limiting strips 5, and the inner wall of the connecting screw tube 3 is provided with multiple limiting grooves 6. The limiting strips 5 are inserted into the corresponding limiting grooves 6. The limiting grooves 6 have a guiding and supporting function for the limiting strips 5, thereby guiding the connecting screw tube 3 to be fitted on the connecting seat 2. At the same time, it also plays a mutual limiting role between the connecting screw tube 3 and the connecting seat 2, ensuring the stability of the installation structure.

[0033] The pneumatic limiting mechanism 4 includes an air filling / discharging valve 41 and multiple pistons 42. A main air passage 7 is provided inside the connecting screw tube 3. Multiple blind holes 8 are provided on both the inner and outer walls of the connecting screw tube 3. The blind holes 8 are connected to the main air passage 7 through transition holes 9. The multiple pistons 42 are slidably connected in the multiple blind holes 8. The air filling / discharging valve 41 is connected to the outer wall of the connecting screw tube 3 and is connected to the main air passage 7. Multiple limiting holes 10 are provided on the surface of the connecting seat 2. Some of the pistons 42 are inserted into the multiple limiting holes 10. Air is filled into the main air passage 7 through the air filling / discharging valve 41. Under the action of air pressure, some of the pistons 42 slide into the corresponding limiting holes 10 in the blind holes 8, completing the mutual limiting between the connecting seat 2 and the connecting screw tube 3. Other pistons 42 slide against the detector screwed to the connecting screw tube 3 in the blind holes 8, thereby effectively preventing the connection between the connecting screw tube 3 and the detector from failing.

[0034] The piston 42 is provided with an anti-slip pad 11 at its end, which increases the friction between the piston 42 and the detector. Even if the lens is used in a vibrating environment, the connecting screw tube 3 and the detector will not easily loosen, thus avoiding the failure of the infrared non-thermal lens installation.

[0035] The diameter of the transition hole 9 is smaller than that of the blind hole 8. The outer wall of the piston 42 abuts against the inner wall of the corresponding blind hole 8 to prevent the piston 42 from sliding into the main air passage 7, while ensuring the airtightness of the pneumatic limiting mechanism 4.

[0036] Working principle: First, select a connecting screw tube 3 that matches the detector specifications, screw the connecting screw tube 3 to the detector, and then put the connecting screw tube 3 and the detector together on the connecting seat 2. At this time, the limiting strip 5 is aligned with the limiting groove 6 and inserted, so that the connecting seat 2 and the connecting screw tube 3 are initially limited. Second, pressurize the main air passage 7 through the air pressure valve 41. Under the action of air pressure, part of the piston 42 slides into the corresponding limiting hole 10 in the blind hole 8, completing the mutual limitation between the connecting seat 2 and the connecting screw tube 3. The other part of the piston 42 slides in the blind hole 8 and abuts against the detector screwed to the connecting screw tube 3, that is, the anti-slip pad 11 abuts against the detector, which can effectively prevent the connection between the connecting screw tube 3 and the detector from failing. Finally, just evacuate air into the main air passage 7 through the air pressure valve 41. The piston 42 resets under the action of air pressure, and the mutual limitation between the connecting seat 2, the connecting screw tube 3 and the detector is released.

Claims

1. An easy-to-install infrared athermal lens, characterized in that: include: The lens body (1) is an infrared non-thermal lens, and a connecting seat (2) is provided at the rear end of the lens body (1); A connecting screw tube (3) is an externally threaded tube, and the connecting screw tube (3) is sleeved on the connecting seat (2); A pneumatic limiting mechanism (4) is provided inside the connecting screw tube (3), the pneumatic limiting mechanism (4) engages with the connecting seat (2) and extends to the outside of the connecting screw tube (3).

2. The infrared pyrotechnic lens that is easy to install according to claim 1, characterized in that, The connecting seat (2) is provided with multiple limiting strips (5), and the inner wall of the connecting screw tube (3) is provided with multiple limiting grooves (6). The limiting strips (5) are inserted into the corresponding limiting grooves (6).

3. The infrared pyrotechnic lens that is easy to install according to claim 1, characterized in that, The pneumatic limiting mechanism (4) includes an air filling and emptying valve (41) and multiple pistons (42). A main air passage (7) is provided inside the connecting screw tube (3). Multiple blind holes (8) are provided on both the inner and outer walls of the connecting screw tube (3). The blind holes (8) are connected to the main air passage (7) through a transition hole (9). Multiple pistons (42) are slidably connected in the multiple blind holes (8). The air filling and emptying valve (41) is connected to the outer wall of the connecting screw tube (3) and is connected to the main air passage (7). Multiple limiting holes (10) are provided on the surface of the connecting seat (2). Some of the pistons (42) are inserted into the multiple limiting holes (10).

4. The infrared pyrotechnic lens that is easy to install according to claim 3, characterized in that, The piston (42) is provided with an anti-slip pad (11) at its end.

5. The infrared pyrotechnic lens that is easy to install according to claim 4, characterized in that, The diameter of the transition hole (9) is smaller than the diameter of the blind hole (8), and the outer wall of the piston (42) abuts against the inner wall of the corresponding blind hole (8).

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