Sealing anti-corrosion structure of photoelectric detection equipment

Abstract

The utility model discloses a sealing anticorrosion structure of photoelectric detection equipment, which relates to the technical field of photoelectric detection equipment and comprises an azimuth seat, the upper end of the azimuth seat is rotatably connected with an azimuth shaft through a sealing socket, and the upper end of the azimuth shaft is fixedly connected with a pitching support through a threaded connecting piece. Two symmetrically distributed angle measuring shafts are fixedly connected to the inner side of the pitching support, pitching shafts are rotatably connected to the inner sides of the angle measuring shafts, a pitching bag is fixedly connected between the two pitching shafts through a threaded connecting piece, and a sensor assembly is fixedly mounted in the pitching bag through a sensor mounting support; the outer side of the pitching support is fixedly connected with a side cover through a threaded connecting piece, according to the sealing anti-corrosion structure of the photoelectric investigation equipment, the sealing strips and the star-shaped sealing strips are used, invasion of seawater, moisture and other corrosive media is prevented, then electronic elements and sensors in the equipment are protected, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of photoelectric detection equipment, in particular to a sealing and anti-corrosion structure of photoelectric detection equipment. Background Art

[0002] Chlorides contained in salt spray environments often deposit on parts in the form of crystalline salts over time. They are highly hygroscopic and can increase the conductivity of the surface liquid film, thereby generating electrochemical reactions, accelerating the corrosion of parts, and causing blistering of the surface coating. Large amounts of salt deposits can also cause damage to electrical components and blockage and stagnation of moving parts.

[0003] Photoelectric reconnaissance and search equipment works in the hot and humid environment at sea for a long time. Seawater, moisture and other corrosive media can easily enter and accumulate inside it, causing damage to the photoelectric reconnaissance and search equipment and reducing its service life. Therefore, a sealed and anti-corrosion structure of photoelectric reconnaissance equipment is proposed to solve the above problems. Utility Model Content

[0004] In order to solve the above technical problems, a sealed and anti-corrosion structure for photoelectric reconnaissance equipment is provided. This technical solution solves the problem proposed in the above background technology that the photoelectric reconnaissance and search equipment works in a humid and hot environment at sea for a long time, and seawater, moisture and other corrosive media easily enter and accumulate inside it, thereby causing damage to the photoelectric reconnaissance and search equipment and reducing its service life.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A sealed and corrosion-resistant structure for photoelectric detection equipment comprises an azimuth seat, the upper end of the azimuth seat is rotatably connected to the azimuth axis through a sealing socket, the upper end of the azimuth axis is fixedly connected to a pitch bracket through a threaded connector, the inner side of the pitch bracket is fixedly connected to two symmetrically distributed angle measuring axes, the inner side of the angle measuring axis is rotatably connected to the pitch axis, a pitch package is fixedly connected between the two pitch axes through a threaded connector, a sensor assembly is fixedly installed inside the pitch package through a sensor mounting bracket, the outer side of the pitch bracket is fixedly connected to a side cover through a threaded connector, sealing strips are provided at the connection between the pitch bracket, the azimuth axis and the side cover, as well as at the connection between the azimuth seat and the sealing plate at the lower end, star-shaped sealing strips are provided at the connection between the pitch bracket, the azimuth axis and the side cover, as well as at the connection between the azimuth seat and the sealing plate at the lower end, and a front end and a rear end of the pitch package are fixedly connected to a front cover and a rear cover respectively through threaded connectors.

[0007] Preferably, a protective window is provided at the front end of the front cover, and the protective window is treated to be hydrophobic.

[0008] Preferably, two wall sockets are provided at the axis centers of the pitch axis and the goniometer axis, and one end of the pitch axis is fixedly connected to the motor shaft.

[0009] Preferably, the pitch package, the motor shaft, the angle measuring shaft, the protective window, the front cover, the rear cover, the two wall sockets and the sealing strip are combined to form an airtight cavity, and an inflation valve is provided on the airtight cavity.

[0010] Preferably, the gap between the protection window and the front cover is filled with sealant.

[0011] Preferably, the sealing strip and the star-shaped sealing strip are made of nitrile rubber or silicone rubber.

[0012] Preferably, the azimuth axis, pitch bracket, pitch bag, front cover, rear cover, side cover and sensor bracket are all made of aluminum alloy 6061-T6.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This proposal proposes a sealed, corrosion-resistant structure for optoelectronic reconnaissance equipment. By using sealing strips and star-shaped sealing strips, they prevent the intrusion of seawater, moisture, and other corrosive media, thereby protecting the electronic components and sensors within the equipment and extending its service life. The resulting airtight cavity effectively isolates the external environment, reducing the effects of moisture and contaminants. An inflation valve allows dry nitrogen to be introduced into the pitch package. As dry nitrogen is introduced, the existing humid air and water vapor inside are gradually expelled, providing a dry environment for the internal optical sensors and electronic components, thereby ensuring the long-term and effective operation of the optical system. The exposed housing is made of 6061-T6 aluminum alloy, which not only provides excellent corrosion resistance and strength but also reduces the overall weight of the equipment. The protective window is treated with hydrophobicity to further reduce the possibility of water droplet adhesion, helping to maintain a clear field of view and ensure the effectiveness of optoelectronic reconnaissance. Sealant fills the gap between the protective window and the front cover, helping to prevent moisture penetration, enhance the overall sealing of the structure, and improve the equipment's reliable operation in harsh marine environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the pitch bag in the present invention;

[0017] Figure 3 It is a structural diagram of the inflation valve in the utility model.

[0018] The numbers in the figure are:

[0019] 1. Azimuth seat; 2. Azimuth axis; 3. Pitch bracket; 4. Pitch bag; 5. Front cover; 6. Rear cover; 7. Sensor assembly; 8. Pitch axis; 9. Goniometer axis; 10. Wall socket; 11. Protective window; 12. Inflation valve; 13. Sealing strip; 14. Star-shaped sealing strip; 15. Side cover. DETAILED DESCRIPTION

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0021] Reference Figure 1-Figure 3 As shown, a sealed and corrosion-resistant structure of a photoelectric detection equipment includes an azimuth seat 1, the upper end of the azimuth seat 1 is rotatably connected to the azimuth axis 2 through a sealing socket, the upper end of the azimuth axis 2 is fixedly connected to the pitch bracket 3 through a threaded connection, the inner side of the pitch bracket 3 is fixedly connected to two symmetrically distributed angle measuring axes 9, the inner side of the angle measuring axis 9 is rotatably connected to the pitch axis 8, a pitch package 4 is fixedly connected between the two pitch axes 8 through a threaded connection, the interior of the pitch package 4 is fixedly installed with a sensor assembly 7 through a sensor mounting bracket, the outer side of the pitch bracket 3 is fixedly connected to a side cover 15 through a threaded connection, sealing strips 13 are provided at the connection between the pitch bracket 3 and the azimuth axis 2 and the side cover 15, as well as at the connection between the azimuth seat 1 and the sealing plate at the lower end, star-shaped sealing strips 14 are provided at the connection between the pitch bracket 3 and the azimuth axis 2 and the side cover 15, as well as at the connection between the azimuth seat 1 and the sealing plate at the lower end, and a front cover 5 and a rear cover 6 are fixedly connected to the front and rear ends of the pitch package 4 respectively through threaded connections.

[0022] Furthermore, a protective window 11 is provided at the front end of the front cover 5. The protective window 11 is treated with hydrophobicity. The hydrophobic treatment not only improves the moisture resistance, but also improves the insulation strength and mechanical strength. The protective film of the protective window 11 is protected by a high-density and high-hardness oxide or nitrogen oxide film layer combined with an anti-mildew material. The hard oxide and nitrogen oxide are similar to the properties of sapphire and have good chemical inertness, thereby ensuring that the film layer has good bonding strength and the ability to resist environmental erosion such as humidity, heat, mold, salt spray, and dust.

[0023] Furthermore, two through-wall sockets 10 are provided at the axis of the pitch axis 8 and the goniometer axis 9. One end of the pitch axis 8 is fixedly connected to the motor shaft. The pitch axis 8 is responsible for controlling the pitch movement of the device, allowing the photoelectric sensor or camera to adjust the pitch angle to better observe and measure the target object. The goniometer axis 9 is responsible for accurately measuring the angle change of the pitch axis 8. The through-wall socket 10 provides an electrical connection channel, which can transmit power and signal lines from the outside to the inside of the device, ensuring power supply and data transmission of various parts of the device. The motor shaft is connected to one end of the pitch axis 8 and is responsible for driving the movement of the pitch axis 8. Through the rotation of the motor, the pitch axis 8 can adjust the angle quickly and accurately.

[0024] Furthermore, the pitch bag 4, the motor shaft, the angle measuring shaft 9, the protective window 11, the front cover 5, the rear cover 6, the two wall sockets 10 and the sealing strip 13 are combined to form an airtight cavity. An inflation valve 12 is provided on the airtight cavity. Dry nitrogen can be introduced into the interior of the pitch bag 4 through the inflation valve 12. While the dry nitrogen is filled in, the original humid air and water vapor inside will be gradually discharged, providing a dry environment for the internal optical sensors and electronic components, thereby ensuring the long-term and effective normal operation of the optical system.

[0025] Furthermore, the gap between the protective window 11 and the front cover 5 is filled with sealant, and the joints of other components are also coated with sealant. The sealant is made of polyurethane and silicone materials, which not only has good physical properties, but also has good aging resistance, and is suitable for marine environment engineering.

[0026] Furthermore, the sealing strip 13 and the star-shaped sealing strip 14 are made of nitrile rubber or silicone rubber. Nitrile rubber and silicone rubber have good high and low temperature resistance and can maintain elasticity and sealing effects in a wide temperature range. At the same time, the two materials have good resistance to a variety of chemicals, oils and solvents, and are suitable for use in marine or industrial environments, so that they can effectively fill gaps and prevent the infiltration of moisture, dust and other impurities, thereby protecting internal electronic components and optical sensors. In addition, nitrile rubber or silicone rubber has a long service life, is resistant to wear and oxidation, can maintain good performance under harsh conditions, and reduce replacement frequency and maintenance costs.

[0027] Furthermore, the sealing strip 13 in the structure is used for the connection between two parts that do not move relative to each other, while the star-shaped sealing strip 14 is used between two parts that move relative to each other. The design of the star-shaped sealing strip 14 on the dynamic part can provide a larger contact area, thereby enhancing the sealing effect and reducing the infiltration of moisture and dust. Due to its special shape and material, the star-shaped sealing strip 14 usually has higher wear resistance and is suitable for use in dynamic motion environments. It can better adapt to the relative movement between the shaft and the casing, reduce wear and deformation caused by movement, and thus extend the service life of the equipment. Using ordinary sealing strips 13 on static parts can effectively avoid losses caused by unnecessary movement. The rational use of the two can reduce costs while ensuring sealing performance.

[0028] Furthermore, the azimuth axis 2, pitch bracket 3, pitch bag 4, front cover 5, rear cover 6, side cover 15 and sensor bracket are all made of aluminum alloy 6061-T6 material. Aluminum alloy 6061-T6 material not only has good corrosion resistance and strength, but also can reduce the overall weight of the equipment.

[0029] In the present invention, ordinary sealing strips 13 are used to fill the gaps at the shell connections where no relative movement occurs to prevent the entry of moisture and dust. These sealing strips 13 can form an effective barrier layer under compression. Star-shaped sealing strips 14 are used to fill the gaps between components that require relative movement. Their special shape and material design provide a larger contact area, which helps to enhance the sealing effect. At the same time, they can adapt to the movement between components and reduce wear and deformation. At the same time, the pitch bag 4, the motor shaft and other components jointly form an airtight cavity. In this cavity, dry nitrogen is introduced through the inflation valve 12, and the original humid air and water vapor inside will be gradually discharged, providing a dry environment for the internal optical sensors and electronic components, thereby ensuring the long-term and effective normal operation of the optical system.

[0030] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed anti-corrosion structure for photoelectric detection equipment, characterized in that: The invention comprises an azimuth seat (1), wherein the upper end of the azimuth seat (1) is rotatably connected to an azimuth axis (2) via a sealing socket, the upper end of the azimuth axis (2) is fixedly connected to a pitch bracket (3) via a threaded connector, the inner side of the pitch bracket (3) is fixedly connected to two symmetrically distributed angle measuring axes (9), the inner side of the angle measuring axis (9) is rotatably connected to a pitch axis (8), a pitch bag (4) is fixedly connected between the two pitch axes (8) via a threaded connector, and a sensor assembly (7) is fixedly installed inside the pitch bag (4) via a sensor mounting bracket. The outer side of the pitch bracket (3) is fixedly connected to the side cover (15) via a threaded connector. The connection between the pitch bracket (3), the azimuth axis (2) and the side cover (15), and the connection between the azimuth seat (1) and the sealing plate at the lower end are all provided with a sealing strip (13). The connection between the pitch bracket (3), the azimuth axis (2) and the side cover (15), and the connection between the azimuth seat (1) and the sealing plate at the lower end are all provided with a star-shaped sealing strip (14). The front end and the rear end of the pitch bag (4) are fixedly connected to the front cover (5) and the rear cover (6) respectively via threaded connectors.

2. The sealing and anti-corrosion structure of the photoelectric detection equipment according to claim 1, characterized in that: A protective window (11) is provided at the front end of the front cover (5), and the protective window (11) is treated to be hydrophobic.

3. The sealing and anti-corrosion structure of the photoelectric detection equipment according to claim 1, characterized in that: Two wall sockets (10) are provided at the axis centers of the pitch axis (8) and the angle measuring axis (9), and one end of the pitch axis (8) is fixedly connected to the motor shaft.

4. The sealing and anti-corrosion structure of the photoelectric detection equipment according to claim 1, characterized in that: The pitch package (4), the motor shaft, the angle measuring shaft (9), the protective window (11), the front cover (5), the rear cover (6), the two wall sockets (10) and the sealing strip (13) are combined to form an airtight cavity, and an inflation valve (12) is provided on the airtight cavity.

5. The sealing and anti-corrosion structure of the photoelectric detection equipment according to claim 2, characterized in that: The gap between the protective window (11) and the front cover (5) is filled with sealant.

6. The sealing and anti-corrosion structure of the photoelectric detection equipment according to claim 1, characterized in that: The sealing strip (13) and the star-shaped sealing strip (14) are made of nitrile rubber or silicone rubber.

7. The sealing and anti-corrosion structure of the photoelectric detection equipment according to claim 1, characterized in that: The azimuth axis (2), the pitch bracket (3), the pitch bag (4), the front cover (5), the rear cover (6), the side cover (15) and the sensor bracket are all made of aluminum alloy 6061-T6 material.

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