Underwater irradiation-resistant cylindrical camera shooting structure and camera shooting device

Abstract

The invention discloses an underwater irradiation-resistant cylindrical camera shooting structure and device, and belongs to the technical field of camera shooting, the underwater irradiation-resistant cylindrical camera shooting structure comprises a machine cover assembly, a machine core assembly and a tail line assembly which are sequentially connected end to end in a sealed mode, and the machine cover assembly comprises a front cover, a lens assembly, a low beam lamp panel and a high beam lamp panel; the machine core assembly comprises a first shell and a camera shooting assembly arranged in the first shell. The three-section type structure is more compact, imaging is carried out only in a single refraction mode, the structure is simplified, light loss is reduced, the picture definition is guaranteed, the aperture size is reduced, the weight is reduced, the installation and maintenance difficulty is reduced, the good radiation resistance and waterproof capacity are achieved, and the application range is wide. In complex environments such as underwater pipelines of nuclear facilities, the position can be kept stable to adapt to bending and changing of the pipelines, and the effect of supplementing light as needed can be achieved according to site conditions by installing the low beam lamp and the high beam lamp on the two sides of the window.

Description

Technical Field

[0001] The invention relates to the field of camera technology, and in particular to an underwater radiation-resistant cylindrical camera structure and a camera device. Background Art

[0002] In view of the monitoring needs of a large number of underwater pipeline scenes in nuclear facilities, cylindrical underwater radiation-resistant cameras can indeed play an important role. However, there are some problems with current camera products. Existing products often have small-aperture designs, making it difficult to take into account both fill-in light effects and picture clarity. The small aperture limits the design of the optical system and the entry of light, thereby affecting the imaging quality. In order to ensure good fill-in light effects and picture clarity, underwater radiation-resistant cameras usually have larger apertures. Surveillance cameras with larger apertures tend to be larger in size and heavier in weight, which not only increases the difficulty of installation and maintenance, but also limits their adaptability in various environments and is not easy to clamp. In complex environments such as underwater pipelines in nuclear facilities, excessive weight may also lead to unstable installation or inability to adapt to the bending and changes of pipelines. The present invention proposes a new solution to the above problems. Summary of the invention

[0003] In order to overcome at least one of the above disadvantages, the present invention provides an underwater radiation-resistant cylindrical camera structure and a camera device. The purpose of the present invention can be achieved by adopting the following technical solutions: A first aspect of the present invention provides an underwater radiation-resistant cylindrical camera structure, comprising: A cover assembly, the cover assembly comprising a front cover, so that a lens assembly, a low beam light board and a high beam light board are arranged on the front cover, and the low beam light board and the high beam light board can fill light to the camera area through the lens assembly; A core assembly, the core assembly comprising a first shell and a camera assembly disposed in the first shell, the camera assembly comprising a core base made of radiation-resistant material and an optical chip and a PCB module embedded in the core base; A tail wire assembly, the tail wire assembly comprising a second housing and a cable connector; Wherein, the cover assembly, the core assembly and the tail line assembly are sealed and connected end to end in sequence.

[0004] In one embodiment, the front cover, the first shell and the second shell are coaxially arranged and have the same outer diameter at the connection, the front cover is connected to the first end of the first shell, and the second shell is connected to the second end of the first shell.

[0005] In one embodiment, a seal is formed between the first shell and the front cover and between the first shell and the second shell by a sealing ring; The first shell and the front cover as well as the first shell and the second shell are connected via radial bolts, and the outer surfaces of the bolts are provided with a corrosion-resistant layer.

[0006] In one possible implementation manner, a heat sink is provided on both the low beam light board and the high beam light board, and radiation-resistant thermal conductive silicone grease is provided between the low beam light board and the heat sink and between the high beam light board and the heat sink, for conducting heat from the low beam light board and the high beam light board to the front cover.

[0007] In one possible implementation, the lens assembly comprises: Window glass, the window glass is coaxially arranged with the lens of the movement assembly; Fill-in light glass, the fill-in light glass is arranged corresponding to the low-beam lamp panel and the high-beam lamp; Sealing rings: the outer peripheral sides of the window glass and the fill-in light glass are both provided with sealing rings made of radiation-resistant material, which are used to seal the gaps between the window glass, the fill-in light glass and the front cover.

[0008] In one possible implementation manner, a window slot and a fill-light slot are provided on the front cover, the window slot is correspondingly provided to the window glass for accommodating the window glass, and the fill-light slot is correspondingly provided to the fill-light glass for accommodating the fill-light glass; The engine cover assembly also includes a light board assembly, which includes a light board base, a low beam lamp cup and a high beam lamp cup. The light board base is provided with a mounting groove corresponding to the lens of the movement assembly. The low beam lamp cup is arranged between the low beam light board and the fill light glass for converging the light emitted by the low beam light board. The high beam lamp cup is arranged between the high beam light board and the fill light glass for converging the light emitted by the high beam light board. The low beam lamp cup and the high beam lamp cup are both located on the side of the fill light glass away from the fill light slot.

[0009] In one embodiment, a cable groove for passing cables is formed between the first housing and the camera assembly, and the camera assembly further includes: A lens, which is used to receive light signals and converge them on a photosensitive device to form a real scene image; A filter module, the filter module is used to filter out pulse interference, and a rotary wire groove is formed between the filter module and the first housing as an outlet for the cable; An adapter plate is arranged on a side of the filter module away from the cover assembly and is used for connecting to the cable.

[0010] In one possible implementation, a light-shielding foam is circumferentially provided at the end of the lens, and the light-shielding foam is located between the light panel assembly and the lens to block the light beam from the surrounding environment from entering the lens.

[0011] In one possible implementation manner, the second shell is funnel-shaped, and comprises a conical section and a straight section connected to each other, and an O-ring groove and a threaded portion are provided on the outer wall of the straight section for clamping.

[0012] A second aspect of the present invention provides a camera device, comprising any one of the underwater radiation-resistant cylindrical camera structures of the first aspect.

[0013] Beneficial technical effects of the present invention: According to the contents of the present disclosure, the underwater radiation-resistant cylindrical camera structure and the camera device have a more compact three-section structure formed by a cover assembly, a movement assembly and a tail line assembly connected end to end, and only use a single refraction to perform imaging, which simplifies the structure, reduces light loss, ensures picture clarity, and thereby reduces the aperture size, reduces weight, and reduces the difficulty of installation and maintenance. It also has excellent radiation resistance and waterproof capabilities, and can maintain a stable position and adapt to the bending and changes of the pipelines in complex environments such as underwater pipelines in nuclear facilities. By installing low beam and high beam lights on both sides of the window, it can achieve an on-demand fill light effect according to the on-site conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In the accompanying drawings, the following are given by way of example and not limitation: Figure 1 The overall structural diagram of the present invention is shown; Figure 2 Shows Figure 1 A schematic diagram of the enlarged structure of part A; Figure 3 An exploded view of the structure of the cover assembly of the present invention is shown; Figure 4 A structural cross-sectional view of a movement assembly of the present invention is shown; Figure 5 A schematic diagram showing the structure of the movement base and the PCB module of the present invention is shown; Figure 6 A structural cross-sectional view of a tail wire assembly of the present invention is shown; Figure 7 A structural cross-sectional view of a conventional cylindrical camera is shown.

[0015] In the figure: 1. Cover assembly; 2. Movement assembly; 3. Tail wire assembly; 4. Cable; 5. Sealed socket; 6. Light guide assembly; 7. Protective glass; 11. Front cover; 12. Lens assembly; 13. Light board assembly; 14. Low beam light board; 15. High beam light board; 16. Heat sink; 21. First housing; 22. Lens; 23. Filter module; 24. Movement base; 25. Optical chip; 26. PCB module; 27. Wire slot; 28. Adapter plate; 29. ​​Light shielding foam; 31. Second housing; 32. Cable connector; 33. O-ring groove; 34. Threaded part; 61. Deflection and focusing coil; 62. Light guide tube; 63. Light guide socket; 64. Focusing motor; 111. Window slot; 112. Fill light slot; 121. Window glass; 122. Fill light glass; 123. Sealing ring; 131. Light board base; 132. Low beam lamp cup; 133. High beam lamp cup. DETAILED DESCRIPTION

[0016] In the following detailed disclosure, these embodiments are fully described with reference to the accompanying drawings. In order to make the technical scheme of the present invention more clear and specific to those skilled in the art, the implementation methods described below are not limited to this. The present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings.

[0017] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0019] like Figure 7As shown, the traditional cylindrical camera is mainly in the form of a light guide 62, and the specific structure includes a shell, a protective glass 7 arranged at one end of the shell and a sealed socket 5 arranged at the other end. The sealed socket 5 is connected to the cable 4. The shell is provided with a light guide assembly 6, and the light guide assembly 6 includes a deflection focusing coil 61, a light guide 62, a light guide socket 63 and a focusing motor 64. The main disadvantage is that the imaging system is complex, the light needs to undergo multiple refractions, and the light is prone to scattering, absorption and other losses, resulting in a decrease in image quality and a low overall resolution. The complex structure increases the difficulty of manufacturing and maintenance, and it is difficult to meet the needs of high-resolution image acquisition for underwater pipelines of nuclear facilities.

[0020] The first aspect of the present invention, as Figure 1-Figure 6 As shown, an underwater radiation-resistant cylindrical camera structure is provided, including a cover assembly 1, a core assembly 2 and a tail line assembly 3 which are sealed and connected end to end in sequence, the cover assembly 1 includes a front cover 11, and a lens assembly 12, a low beam light board 14 and a high beam light board 15 arranged on the front cover 11, the low beam light board 14 and the high beam light board 15 can fill light to the camera area through the lens assembly 12; the core assembly 2 includes a first shell 21 and a camera assembly arranged in the first shell 21, the camera assembly includes a core base 24 made of radiation-resistant material and an optical chip 25 and a PCB module 26 embedded in the core base 24; the tail line assembly 3 includes a second shell 31 and a cable 4 connector.

[0021] The underwater radiation-resistant cylindrical camera structure provided in this embodiment has a three-section structure formed by a cover assembly 1, a movement assembly 2 and a tail line assembly 3 that are sealed and connected at the head and tail, making the structure more compact, optimizing the layout, and improving the space utilization rate. Imaging is performed only in the form of a single refraction. Compared with the traditional optical fiber 62 structure in which the light needs to undergo multiple refractions, the single refraction can greatly reduce the loss of light, so that the light can reach the imaging surface more directly and efficiently, thereby ensuring the clarity of the picture, simplifying the optical path design, reducing unnecessary components and the number of refractions, and thus reducing the aperture size, making the camera structure lighter and reducing the weight. In complex environments such as underwater pipelines in nuclear facilities, the position can be kept stable to adapt to the bending and changes of the pipeline, and the difficulty of installation and maintenance is also reduced.

[0022] The three sections are connected separately and locked with screws coated with radiation-resistant thread glue. When the three sections are connected, a horizontal clamp and a ball screw lifting mechanism can be used to ensure the coaxiality and verticality between the components during installation to avoid damaging the sealing ring gasket and affecting the waterproof performance. The front cover 11, the first shell, and the second shell can use the mirror polishing process of stainless steel 304L, with an overall roughness of about Ra0.4. Compared with the conventional 304 material, the 304L material can effectively avoid intergranular corrosion in underwater environments, and the mirror polishing process makes it difficult for dirt to adhere, and the consistency of the whole machine is strong.

[0023] The underwater radiation-resistant cylindrical camera structure provided in this embodiment also has excellent radiation resistance. By embedding the optical chip 25 and the PCB module 26 in the movement base 24 made of radiation-resistant material, the radiation protection of the circuit device part is improved and all-round protection is performed. The movement base 24 made of radiation-resistant material can effectively block or absorb radiation, thereby reducing the damage of radiation to the circuit devices, ensuring that it can work stably in a high-radiation environment, ensuring the clarity of the imaging, reducing the failure rate caused by radiation, increasing the service life, and reducing the maintenance cost.

[0024] The underwater radiation-resistant cylindrical camera structure provided in this embodiment also has excellent waterproof capabilities, adopts a multi-ring radial sealing waterproof design, and an IP68-level waterproof cable connector 32 is used at the end. The flexible sealing part in the cable connector 32 is modified using radiation-resistant materials, and can withstand the test of harsh environments for a long time, thereby extending the service life of the cable connector 32. A radiation-resistant glue filling process is also adopted. By filling the tail line part with radiation-resistant glue, a solid waterproof barrier is formed, which can prevent the intrusion of water vapor in the tail line, further improving the waterproof performance, and ensuring that it can work stably in an underwater environment.

[0025] The underwater radiation-resistant cylindrical camera structure provided in this embodiment can achieve the effect of on-demand fill light according to the on-site situation by installing low beam and high beam lights on both sides of the window, according to the different illumination ranges and brightness of the low beam and high beam lights. The low beam has a moderate illumination range and soft light, which is suitable for well-lit areas or occasions where strong light interference needs to be avoided. In underwater pipelines of nuclear facilities, when the ambient light is sufficient or the details of the pipeline need to be observed in detail, the low beam can be turned on to provide sufficient but not glaring light to ensure clear images with rich details; the high beam has a longer illumination distance and stronger brightness, which is suitable for night or insufficiently lit areas. In the deep underwater pipelines of nuclear facilities or dimly lit areas, turning on the high beam can illuminate a farther distance, allowing the camera to capture a wider picture, while improving the overall brightness of the image to ensure clear images even in dark environments; the low beam and high beam installed on both sides of the window can ensure that the light source can be flexibly switched according to the on-site conditions when used in underwater pipelines of nuclear facilities, achieving the effect of on-demand fill light, improving the adaptability and practicality of the camera, and significantly improving the image quality, providing strong support for the safety monitoring and operation and maintenance of nuclear facilities.

[0026] In one possible implementation, Figure 1 As shown, the front cover 11 , the first shell 21 and the second shell 31 are coaxially arranged and have the same outer diameter at the connection. The front cover 11 is connected to the first end of the first shell 21 , and the second shell 31 is connected to the second end of the first shell 21 .

[0027] Among them, the shell of the underwater radiation-resistant cylindrical camera structure provided in this embodiment is composed of a front cover 11, a first shell 21 and a second shell 31, which are connected in sequence, coaxially arranged and have the same outer diameter at the connection to form a complete shell structure, which ensures the compact structure of the shell and provides a good waterproof foundation.

[0028] It is understandable that the entire assembly process is carried out in a Class 10,000 dust-free room, using professional dust removal equipment to keep the surface of the optical device clean, ensuring excellent picture display effects.

[0029] In one possible implementation, Figure 1 , Figure 4 and Figure 6 As shown, a seal is formed between the first shell 21 and the front cover 11 and between the first shell 21 and the second shell 31 through a sealing ring gasket.

[0030] In order to further enhance the waterproof performance, the outer shell adopts a multi-circle radial sealing waterproof solution, and multiple sealing ring gaskets are set at the connection of the outer shell to effectively prevent the penetration of water.

[0031] Specifically, at least one O-ring sealing groove can be opened on the outer wall of the first end of the first shell 21, and at least one O-ring sealing groove can be opened on the outer wall of the end of the second shell 31 used for connecting with the first shell 21. By embedding an elastic sealing ring gasket in the O-ring sealing groove, the sealing ring gasket can be made of a material with excellent elasticity, water resistance and radiation resistance, which can ensure the stability, reliability and service life of the sealing effect, effectively prevent moisture penetration, and ensure the dryness and normal operation of the inside of the camera.

[0032] In one possible implementation, Figure 1-Figure 4 As shown, the first housing 21 and the front cover 11 as well as the first housing 21 and the second housing 31 are connected via radial bolts, and the outer surfaces of the bolts are provided with a corrosion-resistant layer.

[0033] The front cover 11 , the first shell 21 and the second shell 31 are connected by bolts, and the bolts are radially arranged to tightly connect the various components together to withstand various external pressures and impacts.

[0034] Among them, the bolts can also be coated with radiation-resistant thread glue to form a corrosion-resistant layer, which can not only effectively protect the bolts from erosion by corrosive media and extend the service life of the bolts, but also seal the gap between the bolts and the outer shell, further improving the waterproof effect and ensuring the safety, stability and reliability of underwater photography.

[0035] In one possible implementation, Figure 3 As shown, a heat sink 16 is provided on the low beam light board 14 and the high beam light board 15 , and radiation-resistant thermal conductive silicone grease is provided between the low beam light board 14 and the heat sink 16 , and between the high beam light board 15 and the heat sink 16 , for conducting the heat from the low beam light board 14 and the high beam light board 15 to the front cover 11 .

[0036] It is understandable that the light board will generate a lot of heat when working, especially in a high radiation or closed environment. If the heat cannot be dissipated in time, it will cause the temperature of the light board to rise, thereby affecting its performance and life. In view of this, by setting a heat sink 16 on both the low beam light board 14 and the high beam light board 15, the heat sink 16 can be made of heat dissipation sheet metal made of copper to increase the heat dissipation area, and radiation-resistant thermal conductive silicone grease is added between the light board and the heat sink 16. The radiation-resistant thermal conductive silicone grease has good thermal conductivity and can quickly transfer the heat of the light board to the heat sink 16 and evenly distribute it to the entire hood assembly 1. Underwater work can quickly take away the heat on the front cover 11, greatly improving the heat dissipation effect.

[0037] Among them, the radiation-resistant thermal grease has the characteristics of radiation resistance, can remain stable in a high-radiation environment, and will not degrade or fail due to radiation, thereby ensuring the long-term reliability of the heat dissipation system and ensuring the normal operating temperature and performance stability of the light board.

[0038] In one possible implementation, Figure 3 As shown, the lens assembly 12 includes a window glass 121, a fill light glass 122 and a sealing ring 123. The window glass 121 is coaxially arranged with the lens 22 of the movement assembly 2, and the fill light glass 122 is arranged corresponding to the low beam lamp panel 14 and the high beam lamp. The outer peripheral sides of the window glass 121 and the fill light glass 122 are provided with sealing rings 123 made of radiation-resistant material, which are used to seal the gaps between the window glass 121 and the fill light glass 122 and the front cover 11.

[0039] The window glass 121 and the lens 22 are coaxially arranged. The fill-in light glass 122 can be two arranged on both sides of the window glass 121. To make the structure more compact, the window glass 121 and the two fill-in light glasses 122 can be arranged in a herringbone shape.

[0040] Among them, the outer peripheral sides of the window glass 121 and the fill light glass 122 are both provided with sealing rings 123 made of radiation-resistant materials. The sealing ring 123 not only has good sealing performance, which can effectively prevent external dust, moisture and other impurities from entering the interior of the lens assembly 12, thereby protecting the cleanliness and integrity of the internal optical components, but also has excellent radiation resistance, which can resist the erosion and damage of the lens assembly 12 by the high radiation environment, extend the service life of the lens assembly 12, and ensure the stability and reliability of these components in the high radiation underwater working environment.

[0041] In one possible implementation, Figure 3 As shown, a window groove 111 and a fill-light groove 112 are provided on the front cover 11, and the window groove 111 and the window glass 121 are correspondingly arranged to accommodate the window glass 121, and the fill-light groove 112 and the fill-light glass 122 are correspondingly arranged to accommodate the fill-light glass 122; the engine cover assembly 1 also includes a light board assembly 13, and the light board assembly 13 includes a light board base 131, a low beam lamp cup 132 and a high beam lamp cup 133. A mounting groove corresponding to the lens 22 of the movement assembly 2 is provided on the light board base 131, the low beam lamp cup 132 is arranged between the low beam lamp board 14 and the fill-light glass 122, and is used to converge the light emitted by the low beam lamp board 14, and the high beam lamp cup 133 is arranged between the high beam lamp board 15 and the fill-light glass 122, and is used to converge the light emitted by the high beam lamp board 15, and the low beam lamp cup 132 and the high beam lamp cup 133 are both located on the side of the fill-light glass 122 away from the fill-light groove 112.

[0042] In the specific implementation, the window glass 121 and the fill light glass are first covered with a sealing ring 123 made of radiation-resistant material, wherein the glass is cut from radiation-resistant glass and coated on the surface. This coating has excellent tensile properties (tensile fracture strength, Young's modulus, and elongation at break), so that it can stick to the glass when it is shattered by a hard object, and glass fragments will not fall off, which can effectively prevent the appearance of glass fragments in nuclear facilities. Then they are inserted into the corresponding grooves of the front cover 11, and then the lamp panel assembly 13 is screwed in with screws to press the three pieces of glass and provide pre-tightening force, wherein the base of the lamp panel assembly 13 has been pressed into the high and low beam lamp cups 132 in advance.

[0043] The camera assembly is used to capture and record images through the window glass 121. Low beam and high beam are added on both sides. The lighting range and brightness can be adjusted through the lamp cup. The low beam is used for short-distance lighting, with a large illumination range but short distance; the high beam is used for long-distance lighting, with concentrated light and high brightness, which can ensure that the light source can be flexibly switched according to the on-site conditions when used in underwater pipelines of nuclear facilities, achieving the effect of on-demand supplementary lighting.

[0044] In one possible implementation, Figure 4 As shown, a wire groove 27 for the cable 4 to pass through is formed between the first shell 21 and the camera assembly. The camera assembly also includes a lens 22, a filter module 23 and an adapter plate 28. The lens 22 is used to receive light signals and converge them on the photosensitive device to form a real-scene image; the filter module 23 is used to filter out pulse interference, and a rotary wire groove 27 is formed between the filter module 23 and the first shell 21 as an outlet for the cable 4; the adapter plate 28 is arranged on the side of the filter module 23 away from the cover assembly 1, and is used to connect with the cable 4.

[0045] Among them, the lens 22 is a key component in the camera assembly for receiving light signals and converging them on the photosensitive device to form a real-scene image.

[0046] The filter module 23 plays a role in filtering out pulse interference in the camera assembly to ensure stable image quality.

[0047] Among them, the front cover 11 assembly, the core assembly 2 and the tail line assembly 3 are respectively connected by cables 4, and the wire groove 27 is used to accommodate the cable 4, ensuring the flexible connection of the cable 4. Furthermore, a rotary wire groove 27 is formed between the filter module 23 and the inner wall of the first shell 21 as an outlet of the cable 4, which is used for communication between the mainboard circuit module and the adapter board 28.

[0048] In one possible implementation, Figure 4 As shown, a shading foam 29 is circumferentially provided at the end of the lens 22 . The shading foam 29 is located between the light board assembly 13 and the lens 22 to block the light beam from the surrounding environment from entering the lens 22 .

[0049] Among them, the shading foam 29 is glued to the front end of the lens 22, which can effectively block the surrounding scattered light from entering the lens 22, avoiding the appearance of gray fog and halo in the photos, thereby improving the image quality; it can also effectively absorb and disperse external impacts, protect the camera module from physical damage, play a role of buffering protection, and extend the service life of the camera structure.

[0050] In one possible implementation, Figure 6 As shown, the second housing 31 is funnel-shaped, and includes a conical section and a straight section connected to each other. An O-ring groove 33 and a threaded portion 34 are provided on the outer wall of the straight section for clamping.

[0051] The second housing 31 is provided with an O-ring groove 33 and a threaded portion 34 to facilitate the additional installation of an extension portion or a robot gripping docking structure.

[0052] In specific implementation, during the assembly of the hood assembly 1, first put the sealing ring 123 on the window glass 121 and the fill light glass, and insert them into the corresponding grooves of the front cover 11. The lamp board base 131 is pressed into the high and low beam lamp cups 132 in advance, and the lamp board base 131 is locked with screws to press the three pieces of glass to provide pre-tightening force. Then, the low beam lamp board 14, the high beam lamp board 15 and the heat sink 16 are locked, and radiation-resistant thermal conductive silicone grease is applied between the lamp board and the heat dissipation sheet metal.

[0053] In specific implementation, during the assembly of the movement assembly 2, the shading foam 29 is first fixed to the front end of the lens 22, and then the lens 22 and the optical chip 25 are installed on the movement base 24 made of radiation-resistant material, the mainboard PCB module 26 is assembled to the movement base 24, and then the filter module 23 is closed as a whole. The filter module 23 reserves a rotary wire groove 27 as an outlet for the cable 4, which is used for communication between the mainboard circuit module and the adapter board 28. The adapter board 28 is installed at the rear end of the filter module 23, and the cables 4 of the two are connected. Finally, the camera assembly is installed in the second shell 31 and fixed with bolts.

[0054] In specific implementation, during the assembly of the tail wire assembly 3, the waterproof cable connector 32 is screwed into the end of the second housing, and then the cable is inserted into the cable connector 32, locked with a nut, and sealed with a radiation-resistant structural adhesive.

[0055] The second aspect of the present invention, as Figure 1-Figure 6 As shown, a camera device is provided, comprising any one of the underwater radiation-resistant cylindrical camera structures in the first aspect.

[0056] Among them, compared with similar underwater radiation-resistant cylindrical cameras, the camera device provided by the present invention has the characteristics of miniaturization, the maximum outer diameter can be controlled at Φ38mm or less, and it also has excellent waterproof performance, can support underwater use of 30 meters, and is light in weight, with the whole machine weighing less than 3.5kg. It also has extended functional structural interfaces such as robot clamping and docking, which is convenient for clamping and installation.

[0057] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0059] In view of the above detailed description, these and other changes can be made to these embodiments, and this written description includes the best mode embodiments to disclose the present invention. The scope of the patent obtained by the present invention is defined by the claims, which are not limited by the present disclosure, and the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the scope disclosed by the present invention, according to the technical solution and its conception of the present invention, is equivalent to or changes, and all are within the protection scope of the present invention.

Claims

1. An underwater radiation-resistant cylindrical camera structure, characterized in that: include: A machine cover assembly (1), the machine cover assembly (1) comprising a front cover (11), and a lens assembly (12), a low-beam light panel (14), and a high-beam light panel (15) arranged on the front cover (11), the low-beam light panel (14) and the high-beam light panel (15) being capable of providing fill light to a camera area through the lens assembly (12); A movement assembly (2), the movement assembly (2) comprising a first shell (21) and a camera assembly arranged in the first shell (21), the camera assembly comprising a movement base (24) made of a radiation-resistant material, and an optical chip (25) and a PCB module (26) embedded in the movement base (24); A tail wire assembly (3), the tail wire assembly (3) comprising a second housing (31) and a cable connector (32); The cover assembly (1), the core assembly (2) and the tail wire assembly (3) are sealed and connected end to end in sequence.

2. The underwater radiation-resistant cylindrical camera structure according to claim 1, characterized in that: The front cover (11), the first shell (21) and the second shell (31) are coaxially arranged and have the same outer diameter at the connection points; the front cover (11) is connected to the first end of the first shell (21), and the second shell (31) is connected to the second end of the first shell (21).

3. The underwater radiation-resistant cylindrical camera structure according to claim 1, characterized in that: A seal is formed between the first shell (21) and the front cover (11), and between the first shell (21) and the second shell (31) via a sealing ring; The first shell (21) and the front cover (11), as well as the first shell (21) and the second shell (31), are connected via radial bolts, and the outer surfaces of the bolts are provided with a corrosion-resistant layer.

4. The underwater radiation-resistant cylindrical camera structure according to claim 1, characterized in that: The low-beam light panel (14) and the high-beam light panel (15) are both provided with a heat sink (16), and radiation-resistant heat-conductive silicone grease is provided between the low-beam light panel (14) and the heat sink (16) and between the high-beam light panel (15) and the heat sink (16) for conducting heat from the low-beam light panel (14) and the high-beam light panel (15) to the front cover (11).

5. The underwater radiation-resistant cylindrical camera structure according to any one of claims 1 to 4, characterized in that: The lens assembly (12) comprises: A window glass (121), the window glass (121) being coaxially arranged with the lens (22) of the movement assembly (2); A fill light glass (122), the fill light glass (122) being arranged corresponding to the low beam lamp panel (14) and the high beam lamp; Sealing rings (123), the outer peripheral sides of the window glass (121) and the light-filling glass (122) are both provided with sealing rings (123) made of radiation-resistant material, and are used to seal the gaps between the window glass (121) and the light-filling glass (122) and the front cover (11).

6. The underwater radiation-resistant cylindrical camera structure according to claim 5, characterized in that: The front cover (11) is provided with a window groove (111) and a fill-light groove (112); the window groove (111) and the window glass (121) are arranged correspondingly for accommodating the window glass (121); the fill-light groove (112) and the fill-light glass (122) are arranged correspondingly for accommodating the fill-light glass (122); The engine cover assembly (1) also includes a light board assembly (13), the light board assembly (13) including a light board base (131), a low beam lamp cup (132) and a high beam lamp cup (133), the light board base (131) is provided with a mounting groove corresponding to the lens (22) of the engine core assembly (2), the low beam lamp cup (132) is arranged between the low beam light board (14) and the fill light glass (122), and is used to converge the light emitted by the low beam light board (14), the high beam lamp cup (133) is arranged between the high beam light board (15) and the fill light glass (122), and is used to converge the light emitted by the high beam light board (15), and the low beam lamp cup (132) and the high beam lamp cup (133) are both located on the side of the fill light glass (122) away from the fill light slot (112).

7. The underwater radiation-resistant cylindrical camera structure according to claim 6, characterized in that: A wire groove (27) for the cable (4) to pass through is formed between the first housing (21) and the camera assembly, and the camera assembly further comprises: A lens (22), the lens (22) being used to receive light signals and converge the light signals on a photosensitive device to form a real scene image; A filter module (23), the filter module (23) being used to filter out pulse interference, and a rotary wire slot (27) being formed between the filter module (23) and the first housing (21) as an outlet for the cable (4); An adapter plate (28), the adapter plate (28) being arranged on a side of the filter module (23) facing away from the cover assembly (1), and being used for connecting to the cable (4).

8. The underwater radiation-resistant cylindrical camera structure according to claim 7, characterized in that: A light-shielding foam (29) is provided around the end of the lens (22) along the circumference; the light-shielding foam (29) is located between the light panel assembly (13) and the lens (22) and is used to block a light beam from the surrounding environment from entering the lens (22).

9. The underwater radiation-resistant cylindrical camera structure according to claim 1, characterized in that: The second shell (31) is funnel-shaped and comprises a conical surface section and a straight tube section connected to each other. An O-ring groove (33) and a threaded portion (34) for clamping are provided on the outer wall of the straight tube section.

10. A camera device, characterized in that: It comprises the underwater radiation-resistant cylindrical camera structure as described in any one of claims 1 to 9.

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