Underwater sealed housing for underwater holographic inspection

Abstract

The present application provides an underwater sealed housing for underwater holographic detection, including: a housing, the housing is cylindrical, and a detection groove is provided on the left and right sides of the middle of the housing, and the detection groove divides the housing into two parts, front and rear; end face sealing assemblies are provided at both ends of the housing, and the end face sealing assemblies are used for end face sealing at both ends of the housing; detection groove seals are provided on the front and rear sides of the detection groove, and the detection groove seals are used for end face sealing of the housing near the detection groove. The utility model provides a housing, uses an end face sealing assembly to seal both ends of the housing, uses an end cover seal to connect the sealing end cover and the housing, increases the sealing performance by providing a water isolation groove, and uses the detection groove seal to seal the detection groove, so that the housing is sealed as a whole, increases the sealing of the light-transmitting plate and the sealing ring by providing an end face water isolation groove, and increases the sealing of the sealing ring and the housing by providing a side water isolation groove, so as to achieve the overall sealing of the housing, so that the housing can be immersed in the water surface for detection.

Description

Technical Field

[0001] The present application relates to the technical field of algae detection equipment, and in particular to an underwater sealed housing for underwater holographic detection. Background Art

[0002] Excessive reproduction of algae is the main cause of ecological disasters such as algae blooms. The establishment of a monitoring and early warning system for algae and other aquatic organisms will help reduce the risk and cost of blue algae blooms. It is of great significance to water pollution prevention and control and the management of the lake chief system. There are generally two ways to measure algae or other fine particles in water bodies. One is optical backscattering, which infers the particle concentration by calculating the scattering attenuation of light by particles; the other is to use multi-spectrum or hyperspectral. Different algae will show different spectral characteristics when absorbing specific spectra. Both methods are indirect measurement methods and cannot obtain specific information about particulate matter. Later, holographic microscopy technology appeared. Using the wave characteristics of light, a light field superimposed by reference light fluctuations and diffracted light waves is obtained on CMOS, thereby obtaining the distribution of limited particles in the water body.

[0003] The existing laser holographic photography technology for particles in water is relatively large and not suitable for field use. It is necessary to first sample the water body and then bring the sample points back to the laboratory for testing. When sampling, a certain amount of liquid is usually taken out of the water using a water bottle. When the sampling bottle rises, it is easy to be contaminated by the upper liquid, making it difficult to obtain liquid samples from deep inside. At the same time, when brought back to the laboratory, the sample will precipitate and denature, affecting the test results. Utility Model Content

[0004] In order to solve the problem in the related art that the water quality cannot be detected deep under the water, the present application provides an underwater sealed housing for underwater holographic detection.

[0005] include:

[0006] The outer shell is cylindrical, and a detection groove is provided on the left and right sides of the middle of the outer shell, and the detection groove divides the outer shell into two parts, front and rear;

[0007] End face sealing components are provided at both ends of the shell, and the end face sealing components are used for end face sealing at both ends of the shell;

[0008] Detection slot seals are provided on the front and rear sides of the detection slot, and the detection slot seals are used to seal the end surface of the housing close to the detection slot.

[0009] Furthermore, the shell is made of aluminum alloy material, and the outer diameter of the shell is 90 mm.

[0010] Furthermore, the housing further comprises a light source cabin and an imaging cabin, and the light source cabin and the imaging cabin are separated by a detection slot.

[0011] Furthermore, the length of the imaging cabin is greater than the length of the light source cabin.

[0012] Furthermore, the end face sealing assembly includes two sealing end covers, and the two sealing end covers are provided with fixing ears on the left and right sides.

[0013] Furthermore, the sealing end covers are located at both ends of the outer shell, and the sealing end covers and the outer shell are sealed and connected via the end covers.

[0014] Furthermore, the end cover seal comprises a connecting flange and a sealing skirt, the two end faces of the connecting flange are in contact with the end face of the shell and the end face of the sealing end cover respectively, and the sealing skirt is inserted into the shell.

[0015] Furthermore, annular water-isolating grooves are provided on the sealing skirt and the side surfaces of the connecting flange.

[0016] Furthermore, the detection slot seal comprises a sealing ring, the sealing ring is located inside a side of the housing close to the detection slot, and a light-transmitting plate is provided on the side of the sealing ring close to the detection slot.

[0017] Furthermore, an annular end surface water-isolating groove is provided on the end surface of the sealing ring in contact with the light-transmitting plate, and a side surface water-isolating groove is provided on the side surface of the sealing ring.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model provides an outer shell, utilizes end face sealing components to seal both ends of the outer shell, utilizes end cover seals to connect the sealing end cover and the outer shell, increases the sealing performance by providing a water baffle, and utilizes a detection groove seal to seal the detection groove, so that the outer shell is sealed as a whole, increases the sealing of the light-transmitting plate and the sealing ring by providing an end face water baffle, increases the sealing of the sealing ring and the outer shell by providing a side water baffle, and realizes the overall sealing of the outer shell, so that the outer shell can be deeply immersed below the water surface for detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the overall structure provided for an implementation method of the present application;

[0021] Figure 2 A schematic diagram of a housing structure provided in one embodiment of the present application;

[0022] Figure 3 A schematic diagram of a cross-sectional structure of a housing provided in one embodiment of the present application;

[0023] Figure 4 A schematic diagram of an end cover sealing structure provided in one embodiment of the present application;

[0024] Figure 5 An exploded schematic diagram of a detection slot sealing structure provided in one embodiment of the present application.

[0025] Illustration Description:

[0026] 1. Shell; 11. Light source cabin; 12. Imaging cabin; 13. Detection slot;

[0027] 2. End face sealing assembly; 21. Sealing end cover; 22. Fixing ear; 23. End cover seal; 231. Connecting flange; 232. Take-out groove; 233. Sealing skirt; 234. Waterproof groove;

[0028] 3. Detection slot seal; 31. Light-transmitting plate; 32. Sealing ring; 321. Light-transmitting plate mounting slot; 322. End face water-blocking groove; 323. Side face water-blocking groove. DETAILED DESCRIPTION

[0029] 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.

[0030] In this document, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0031] In addition, in this article, directional terms such as "upper" and "lower" are defined relative to the orientation of the structure schematically placed in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to the change of the orientation of the structure.

[0032] See also Figures 1 to 5 , an embodiment of the present application provides an underwater sealed housing for underwater holographic detection, comprising:

[0033] The housing 1 is cylindrical, and a detection slot 13 is provided through the middle of the housing 1. The detection slot 13 divides the housing 1 into two parts, front and back.

[0034] The interior of the housing 1 is used to install a light source and an imaging device for detection, and the light source and the imaging device adopt a known laser generating device and a holographic camera. The detection slot 13 has a width of 10 mm and is used for detecting water ingress.

[0035] The housing 1 is made of aluminum alloy, and the outer diameter of the housing 1 is 90 mm.

[0036] The outer shell 1 is made of 6061 aluminum alloy tube, which is anodized and blackened as a whole to form an oxide film on the surface to prevent the outer shell 1 from being corroded.

[0037] The housing 1 further comprises a light source compartment 11 and an imaging compartment 12, which are separated by a detection slot 13. The imaging compartment 12 is longer than the light source compartment 11.

[0038] The light source cabin 11 is used to install a laser source for detection, and the imaging cabin 12 is used to install an imaging device.

[0039] End face sealing components 2 are provided at both ends of the housing 1, and the end face sealing components 2 are used for end face sealing at both ends of the housing 1. The end face sealing components 2 include two sealing end covers 21, and the two sealing end covers 21 are provided with fixing ears 22 on the left and right sides.

[0040] The end face sealing component 2 is made of 6061 aluminum alloy and is anodized black to avoid corrosion and rust.

[0041] The sealing end covers 21 are located at both ends of the housing 1 , and the sealing end covers 21 and the housing 1 are connected via end cover seals 23 .

[0042] The sealing end cover 21 and the end cover seal 23 are fixedly connected by screws.

[0043] The end cover seal 23 includes a connecting flange 231 and a sealing skirt 233 . The two end faces of the connecting flange 231 are in contact with the end face of the housing 1 and the end face of the sealing end cover 21 respectively. The sealing skirt 233 is inserted into the housing 1 .

[0044] Three removal grooves 232 are evenly arranged on one side of the connecting flange 231 close to the end surface of the housing 1, so as to facilitate the removal of the end cover seal 23 during subsequent maintenance.

[0045] An annular water-isolating groove 234 is provided on the side of the sealing skirt 233 and the connecting flange 231 .

[0046] An O-ring may be provided in the water isolation groove 234. The O-ring may be a well-known rubber O-ring, which may enhance the sealing performance.

[0047] The detection slot seal 3 is provided on both sides of the detection slot 13, and the detection slot seal 3 is used to seal the end surface of the housing 1 near the detection slot 13. The detection slot seal 3 includes a sealing ring 32, which is located inside the housing 1 near the detection slot 13, and a light-transmitting plate 31 is provided on the side of the sealing ring 32 near the detection slot 13.

[0048] The sealing ring 32 is made of 6061 aluminum alloy and is anodized to prevent rust and corrosion. The light-transmitting plate 31 is made of highly transparent acrylic material to facilitate laser transmission. The light-transmitting plate 31 and the sealing ring 32 are fixedly connected by screws.

[0049] An annular end surface water-isolating groove 322 is provided on the end surface of the sealing ring 32 that contacts the light-transmitting plate 31 , and a side surface water-isolating groove 323 is provided on the side surface of the sealing ring 32 .

[0050] A light-transmitting plate mounting groove 321 is provided on the front side of the sealing ring 32, and the light-transmitting plate 31 is fixedly installed in the light-transmitting plate mounting groove 321 by means of screws. The end surface water-blocking groove 322 is located in the light-transmitting plate mounting groove 321. O-rings can be provided in the end surface water-blocking groove 322 and the side water-blocking groove 323 to increase the waterproofness of the end surface water-blocking groove 322 and the side water-blocking groove 323.

[0051] This application has at least one of the following advantages:

[0052] (1) The detection slot 13 is used to separate the housing 1 into a light source cabin 11 and an imaging cabin 12, and the laser light source and imaging equipment are installed separately, which reduces the size of the equipment and facilitates field use;

[0053] (2) By providing an end cover seal 23, by inserting the sealing skirt 233 into the housing 1, and connecting the sealing end cover 21 with the connecting flange 231, the sealing ends of the sealing end cover 21 are sealed;

[0054] (3) By providing a detection slot seal 3, by inserting a sealing ring 32 into the middle of the housing 1 and fixing the light-transmitting plate 31, the end face of the detection slot 13 is sealed without affecting laser penetration;

[0055] (4) The housing 1 is completely sealed by using the end face sealing assembly 2 and the detection slot seal 3.

[0056] The above is a detailed introduction to the underwater sealed housing for underwater holographic detection provided by the implementation method of the present application, and the principles and implementation methods of the present application are explained using specific examples. The above description is only used to help understand the method of the present application and its core mechanism; at the same time, for general technical personnel in this field, according to the ideas of the present application, there will be changes in the specific embodiments and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An underwater sealed housing for underwater holographic detection, characterized in that: include: A housing (1), the housing (1) being cylindrical, with detection grooves (13) penetrating the middle of the housing (1) on the left and right sides, the detection grooves (13) dividing the housing (1) into two parts, front and rear; End face sealing components (2) are provided at both ends of the housing (1), and the end face sealing components (2) are used for sealing the end faces at both ends of the housing (1); Detection slot seals (3) are provided on both the front and rear sides of the detection slot (13), and the detection slot seals (3) are used to seal the end surface of the housing (1) close to the detection slot (13).

2. The underwater sealed housing for underwater holographic detection according to claim 1, characterized in that: The outer shell (1) is made of aluminum alloy material, and the outer diameter of the outer shell (1) is 90 mm.

3. The underwater sealed housing for underwater holographic detection according to claim 2, characterized in that: The housing (1) further comprises a light source cabin (11) and an imaging cabin (12), wherein the light source cabin (11) and the imaging cabin (12) are separated by a detection slot (13).

4. The underwater sealed housing for underwater holographic detection according to claim 3, characterized in that: The length of the imaging cabin (12) is greater than the length of the light source cabin (11).

5. The underwater sealed housing for underwater holographic detection according to claim 1, characterized in that: The end face sealing assembly (2) comprises two sealing end covers (21), and the two sealing end covers (21) are provided with fixing ears (22) on the left and right sides.

6. The underwater sealed housing for underwater holographic detection according to claim 5, characterized in that: The sealing end covers (21) are located at both ends of the outer shell (1), and the sealing end covers (21) and the outer shell (1) are connected via end cover seals (23).

7. The underwater sealed housing for underwater holographic detection according to claim 6, characterized in that: The end cover seal (23) comprises a connecting flange (231) and a sealing skirt (233); two end faces of the connecting flange (231) are in contact with an end face of the housing (1) and an end face of the sealing end cover (21), respectively; and the sealing skirt (233) is inserted into the housing (1).

8. The underwater sealed housing for underwater holographic detection according to claim 7, characterized in that: An annular water-isolating groove (234) is provided on the side surfaces of the sealing skirt (233) and the connecting flange (231).

9. The underwater sealed housing for underwater holographic detection according to claim 8, characterized in that: The detection slot seal (3) comprises a sealing ring (32), the sealing ring (32) being located inside a side of the housing (1) close to the detection slot (13), and a light-transmitting plate (31) being provided on a side of the sealing ring (32) close to the detection slot (13).

10. The underwater sealed housing for underwater holographic detection according to claim 9, characterized in that: An annular end surface water-isolating groove (322) is provided on the end surface of the sealing ring (32) in contact with the light-transmitting plate (31), and a side surface water-isolating groove (323) is provided on the side surface of the sealing ring (32).

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