Underwater irradiation-resistant tubular camera
By designing a compact, modular, underwater radiation-resistant tube-type camera with high waterproof and fill light, the existing products have poor imaging effects in high-radiation and deep water environments have been solved, stable and high-definition monitoring effects have been achieved, and the maintenance process has been simplified.
Patent Information
- Application Number
- CN202421455720.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-06-25
AI Technical Summary
Existing underwater pipe-type radiation-resistant cameras have problems such as expensive prices, long procurement cycles, backward imaging technology and insufficient waterproofing performance, which makes it difficult to meet the needs of high-performance monitoring in the underwater environment of the nuclear field.
A underwater radiation-resistant tube-type camera with compact structure, modularity, small diameter, excellent fill light capability, colorful picture and high definition, adopts radiation-resistant materials and high waterproof seal design, combined with high resolution lens modules and stable fill lights, ensuring a clear monitoring picture in a high-radiation environment.
It achieves the provision of stable and high-definition color images in high-radiation and deep water environments, meets the high-performance needs of underwater monitoring in the nuclear field, and simplifies the maintenance and replacement process through modular design.
Smart Images
Figure CN222884724U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of tube-type cameras, and in particular to an underwater radiation-resistant tube-type camera. Background Art
[0002] At present, worldwide, nuclear power has become one of the world's three major power supply pillars, along with thermal power and hydropower, due to its advantages such as low resource consumption, small environmental impact and strong supply capacity. Under this trend, my country has built many nuclear power plants. Due to the high energy density, cleanliness and low environmental pollution of nuclear energy, nuclear energy is also a very important technology for my country to achieve its carbon neutrality goal. Nuclear power plants that use nuclear energy have a good supplementary role in solving energy supply and can effectively reduce carbon emissions. In the military industry, nuclear missile lights are also the top force in the military industry, playing a key deterrent role in maintaining peace. In the medical field, gamma knives have been developed for tumor treatment. The role of nuclear energy has been increasingly reflected in all aspects of our society.
[0003] In nuclear power plants or in nuclear radiation environments, video surveillance of certain areas is often required to ensure the normal operation of equipment. Tube-shaped radiation-resistant cameras can play a huge role in high-radiation, complex and harsh environmental scenarios such as hot cell monitoring, fuel assembly inspection and repair, core inspection, fuel transfer container operation monitoring, loading and replacement process monitoring, waste treatment, and pipeline inspection.
[0004] Defects in existing products and technology fields: Foreign tube-type radiation-resistant cameras are expensive, have a long procurement cycle, and have relatively backward imaging technology, and the supporting services are not timely; there are few similar products in China, and compared with foreign products, their performance is not competitive, with low resolution and waterproof performance that cannot meet the more stringent usage environment.
[0005] This plan mainly designs an underwater camera with high integration, modularity, small aperture, excellent fill-light capability, color and high-definition images, and radiation resistance. It solves the situation where underwater tube-type radiation-resistant cameras in the nuclear field are monopolized by foreign countries and is conducive to domestic substitution. Utility Model Content
[0006] The purpose of the present application is to provide an underwater radiation-resistant tube-type camera, which is a compact and miniaturized underwater radiation-resistant tube-type camera with modular design, simple assembly, high reliability and high technical integration.
[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an underwater radiation-resistant tube-type camera with an aperture of Φ40mm, comprising: a front cover assembly, a movement assembly and a terminal tail line assembly, the front cover assembly and the terminal tail line assembly are respectively connected to the two ends of the movement assembly, the front cover assembly comprises an O-ring with radiation resistance, a front cover, a double-ring glass, a light board bracket and a fill light board, the O-ring and the double-ring glass are respectively connected to the inner sides of the two ends of the front cover, the light board bracket locks the double-ring glass through a connecting piece, the fill light board is locked on the light board bracket through a connecting piece, and a cylindrical hole with a specific aspect ratio corresponding to the fill light on the fill light board is opened on the light board bracket; the movement assembly comprises a lens module, a sensor chip, a movement assembly base, a mainboard PCB module The lens module and sensor chip are installed at one end of the movement assembly base made of radiation-resistant material. The mainboard PCB module and the filter module are integrated on the movement assembly base. The filter module is wrapped relative to the mainboard PCB module. The movement cable is installed through a channel opened on the filter module. The movement cable connects the PCB module and the adapter board PCB. The adapter board PCB is installed at the end of the filter module away from the lens module. The movement assembly shell wraps and fixes other modules of the movement assembly; the terminal tail wire assembly includes a tail wire cable, an aviation plug, a nut and an aviation plug adapter bracket. The tail wire cable is welded to the aviation plug, and the aviation plug is locked to the aviation plug adapter bracket by a nut.
[0008] Preferably, a plurality of mini LED lights are installed on the fill light panel.
[0009] Preferably, the aspect ratio of the cylindrical hole on the light panel bracket is 1.0-2.0.
[0010] Preferably, the channel for installing the movement cable provided on the filter module is maze-like.
[0011] Preferably, the nut is cylindrical, and a machined groove and a positioning hole are provided on the nut, and the nut is locked on the aviation plug adapter bracket through the groove and the positioning hole.
[0012] Preferably, the front cover assembly and the end tail wire assembly are all connected to the core assembly by applying glue and then threading. Compared with the prior art, the beneficial effects of the present application are:
[0013] 1. The tube-type radiation-resistant camera of this application is mainly used in two environments: fuel assembly inspection and repair and pipeline inspection. In these two environments, this application can give full play to its characteristics: small caliber and light weight mean that it can easily enter the target position and is easy to clamp;
[0014] 2. The excellent waterproof performance of this underwater radiation-resistant tube camera allows the camera to monitor at a depth of 50m underwater;
[0015] 3. The underwater radiation-resistant tube camera has excellent fill-in light performance, special lens module, and stable high-intensity radiation resistance, which enables it to provide stable and high-definition color image monitoring in harsh radiation environments;
[0016] 4. This underwater radiation-resistant tube-type camera has a high degree of modularity and is easy to replace and maintain. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the front cover assembly of the underwater radiation-resistant tube-type camera according to the first embodiment of the present application;
[0018] Figure 2 This is a schematic diagram of the internal structure of the core assembly of the underwater radiation-resistant tube-type camera of Example 1 of the present application;
[0019] Figure 3 This is a cross-sectional view of the end tail line assembly of the underwater radiation-resistant tube-type camera according to the first embodiment of the present application. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0021] Embodiment 1
[0022] like Figures 1 to 3 As shown, an underwater radiation-resistant tube-type camera comprises: a front cover assembly, a core assembly and a terminal tail line assembly, wherein the front cover assembly and the terminal tail line assembly are respectively connected to two ends of the core assembly.
[0023] The front cover assembly includes an O-ring 1 with radiation resistance, a front cover 2, a double-ring glass 3, a light board bracket 4 and a fill light board 5. The O-ring 1 is pressed tightly in the sealing ring groove of the front cover 2. After the double-ring glass 3 is placed in the front cover 2, the light board bracket 4 locks the double-ring glass 3 through threads to provide uniform locking force, ensure the compression of the O-ring 1, and evenly distribute the pressure on the double-ring glass 3 under water. The fill light board 5 is locked on the light board bracket 4 by screws. 20 mini LED lights are installed on the fill light board 5. The light board bracket 4 is provided with a cylindrical hole with a length-to-diameter ratio of 1.0-2.0 corresponding to the fill light on the fill light board 5, which can achieve an excellent fill light effect;
[0024] The movement assembly includes a lens module 6, a sensor chip 7, a movement assembly base 8, a mainboard PCB module 7, a filter module 10, a movement cable 11, an adapter board PCB 12 and a movement assembly housing 13. The lens module 6 and the sensor chip 7 are installed at one end of the movement assembly base 8 made of radiation-resistant material. The mainboard PCB module 7 and the filter module 10 are integrated on the movement assembly base 8. The filter module 10 is wrapped relative to the mainboard PCB module 7. The movement cable 11 is installed through a maze-like channel opened on the filter module 10. The movement cable 11 connects the PCB module 7 and the adapter board PCB 12 for communication between the PCB module 7 and the adapter board PCB 12. The adapter board PCB 12 is installed at one end of the filter module 10 away from the lens module 6. The movement assembly housing 13 wraps and fixes other modules of the movement assembly and is fixed by screws.
[0025] The end tail line assembly includes a tail line cable 14, an aviation plug 15, a nut 16 and an aviation plug adapter bracket 17. The tail line cable 14 is welded to the aviation plug 15, and the aviation plug 15 is locked to the aviation plug adapter bracket 17 through the nut 16. Due to the small space, there is no space for assembly using conventional hexagonal nuts and hexagonal sockets, so the nut 16 is cylindrical, and the tooling is also made into a cylindrical shape. The nut 16 is provided with a machined groove and a positioning hole. Compared with the traditional method of putting the nut on, the groove and the positioning hole are used to clamp the nut 16 and provide a locking force, and glue is used to seal the leakage hole of the aviation plug probe.
[0026] When installing the whole machine, the first step is to weld the wires of the front cover assembly and the movement assembly, apply radiation-resistant medium-strength thread glue on the threads in a certain proportion, and screw the front cover assembly into the movement assembly through the threads; the second step is to apply radiation-resistant medium-strength thread glue on the threads of the terminal tail wire assembly in a certain proportion, and screw it into the movement assembly from the rear end of the movement assembly. Under this installation method, there are no screws on the outside of the entire machine, and there is no risk of parts falling; the outer shells of the front cover, movement, and terminal components are all mirror-polished, with an overall roughness of about Ra0.2, dirt is difficult to adhere, and the consistency of the whole machine is strong.
[0027] In terms of radiation resistance design of this solution: in addition to the use of aviation devices for the components themselves, all devices that need protection are isolated by radiation-resistant shielding materials, such as the mainboard PCB module of the movement component part, leaving only space for the connecting wire outlet to prevent the entry of gamma rays, etc.
[0028] Waterproof design: radiation-resistant sealing materials are used between the outer shells for radial static sealing, and the aviation plug assembly at the end adopts static axial sealing. At the same time, in order to prevent a small amount of water vapor from invading the gap of the aviation plug probe, radiation-resistant structural adhesive is used for glue sealing.
[0029] Assembly process: Due to this structure, the light from the lens to the sensor chip is parallel light, which requires extremely high cleanliness of the sensor. Therefore, the present invention is operated in a dust-free room throughout the assembly process, and green LED lights and microscopes are used to clean the dust on the sensor at the micron level.
[0030] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. An underwater radiation-resistant tube-type camera, characterized in that: The diameter of the underwater radiation-resistant tube camera is Φ40mm, including: a front cover assembly, a core assembly and a terminal tail line assembly. The front cover assembly and the terminal tail line assembly are respectively connected to the two ends of the core assembly. The front cover assembly comprises an O-ring (1) with radiation resistance, a front cover (2), a double-ring glass (3), a light board bracket (4) and a fill light board (5); the O-ring (1) and the double-ring glass (3) are respectively connected to the inner sides of both ends of the front cover (2); the light board bracket (4) locks the double-ring glass (3) through a connecting piece; the fill light board (5) is locked on the light board bracket (4) through a connecting piece; and a cylindrical hole with a specific aspect ratio corresponding to the fill light on the fill light board (5) is opened on the light board bracket (4); The movement assembly comprises a lens module (6), a sensor chip (7), a movement assembly base (8), a mainboard PCB module (9), a filter module (10), a movement cable (11), an adapter board PCB (12) and a movement assembly housing (13); the lens module (6) and the sensor chip (7) are mounted on one end of the movement assembly base (8) made of radiation-resistant material; the mainboard PCB module (9) and the filter module (10) are integrated on the movement assembly base (8); the filter module (10) is in a wrapped state relative to the mainboard PCB module (9); the movement cable (11) is installed through a channel opened on the filter module (10); the movement cable (11) connects the PCB module (9) and the adapter board PCB (12); the adapter board PCB (12) is mounted on one end of the filter module (10) away from the lens module (6); and the movement assembly housing (13) wraps and fixes other modules of the movement assembly; The end tail wire assembly comprises a tail wire cable (14), an aviation plug (15), a nut (16) and an aviation plug adapter bracket (17); the tail wire cable (14) is welded to the aviation plug (15), and the aviation plug (15) is locked to the aviation plug adapter bracket (17) through the nut (16).
2. The underwater radiation-resistant tube-type camera according to claim 1, characterized in that: A plurality of mini LED lights are installed on the fill light panel (5).
3. The underwater radiation-resistant tube-type camera according to claim 1, characterized in that: The aspect ratio of the cylindrical hole on the lamp panel bracket (4) is 1.0-2.
0.
4. The underwater radiation-resistant tube-type camera according to claim 1, characterized in that: The channel for installing the core cable (11) provided on the filter module (10) is in a maze-like manner.
5. The underwater radiation-resistant tube-type camera according to claim 1, characterized in that: The nut (16) is cylindrical, and a machining groove and a positioning hole are provided on the nut (16). The nut (16) is locked on the aviation plug adapter bracket (17) through the groove and the positioning hole.
6. The underwater radiation-resistant tube-type camera according to claim 1, characterized in that: The front cover assembly and the end tail line assembly are all threadedly connected with the movement assembly after applying glue.