A particle detection device

Abstract

The present application discloses a particle detection device, comprising a detection seat, a rotating frame and a driving mechanism; the rotating frame is equipped with: a sampling detection cylinder for allowing particles to pass through; a shooting mechanism for shooting particles in the sampling detection cylinder; a light-emitting element installed on the side wall of the sampling detection cylinder; a collecting cylinder, the opening of which corresponds to the end of the sampling detection cylinder; a first cover plate installed at the opening of the collecting cylinder, and an opening and closing assembly for driving the first cover plate to open or close the opening; the rotating frame has a first state and a second state; in the first state, the opening of the collecting cylinder is located directly below the sampling detection cylinder; in the second state, the rotating frame rotates 180° relative to the first state, and the particles collected by the collecting cylinder can be freely settled by opening the first cover plate. The present application can change the upper and lower positions of the sampling detection cylinder and the collecting cylinder, and can detect particles at different depths by capturing and releasing the collecting cylinder.

Description

Technical Field

[0001] The present invention relates to the field of submarine operation equipment, and in particular to a particle detection device. Background Art

[0002] The marine biological pump is the photosynthesis of marine phytoplankton that produces particulate organic carbon. Through a series of biological processes such as zooplankton feeding and particulate matter sedimentation, particulate organic carbon is transferred from the upper water body to the deep water body and even the seabed. It plays a key role in regulating the concentration of carbon dioxide in the atmosphere and the ocean carbon cycle.

[0003] Research on particulate organic carbon is of great significance. Existing technologies use microscopic imaging devices to capture and calculate the settling velocity of particulate matter, but this type of equipment can only conduct research at specific captured locations, making it difficult to efficiently study the settling velocity of particulate organic carbon at different depths. Summary of the Invention

[0004] In response to the above problems, the present invention proposes a particle detection device.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A particle detection device comprises a detection seat, a rotating frame and a driving mechanism;

[0007] The rotating frame is rotatably mounted on the detection seat, and the driving mechanism is used to drive the rotating frame to rotate;

[0008] The rotating frame is equipped with:

[0009] A sampling and detection cylinder is provided through-hole from top to bottom for allowing particles to pass through, and the side wall of the sampling and detection cylinder has at least one light-transmitting area;

[0010] A photographing mechanism, aimed at the light-transmitting area of the sampling and detecting cylinder, for photographing the particulate matter in the sampling and detecting cylinder;

[0011] The light emitting element is installed on the side wall of the sampling and detection cylinder;

[0012] A collecting cylinder, one end of which is closed and the other end of which is open, wherein the opening of the collecting cylinder corresponds to the end of the sampling and testing cylinder;

[0013] a first cover plate, mounted at the opening of the collecting cylinder, and

[0014] an opening and closing assembly, configured to drive the first cover plate to open or close the opening;

[0015] The rotating frame has a first state and a second state; in the first state, the opening of the collecting cylinder is located directly below the sampling and detecting cylinder, and the collecting cylinder can collect particles passing through the sampling and detecting cylinder;

[0016] In the second state, the rotating frame rotates 180 degrees relative to the first state, and the particles collected by the collecting cylinder can be freely settled by opening the first cover and fall into the sampling and detection cylinder below.

[0017] One working principle of the particle detection device of this application:

[0018] The particle detection device is lowered into the ocean via a cable to a first set depth. The rotating frame is in a first state. After a period of time, particles fall into the sampling and detection cylinder. The particles are then photographed by a photographing mechanism (the photographed data can be analyzed after the entire operation is completed to obtain relevant information about the particle detection, such as settling velocity). The particles finally fall into a collection cylinder located directly below the sampling and detection cylinder.

[0019] After the detection work is completed at the first set depth, the driving mechanism rotates the rotating frame 180 degrees, and the rotating frame switches to the second state. At this time, the first cover closes the opening of the collection cylinder, and the collected particulate matter is located in the collection cylinder;

[0020] Adjust the release distance of the cable so that the release depth becomes the second set depth. After stabilization for a period of time, open the first cover through the opening component to allow the particles collected in the collection cylinder to settle freely and fall into the sampling and detection cylinder below, and the particles are photographed by the shooting mechanism.

[0021] The present invention uses a driving mechanism to drive the rotating frame to rotate 180 degrees, thereby changing the vertical position of the sampling and detection cylinder and the collection cylinder. By capturing and releasing the collection cylinder, it is possible to detect particulate matter at different depths. Because the particulate matter is captured in advance, the second detection can be carried out efficiently.

[0022] In practical application, preferably, the particulate matter in this application refers to particulate organic carbon.

[0023] The light-emitting element can provide supplementary light when the light is dim deep under the sea, cooperating with the shooting work of the shooting mechanism.

[0024] In one embodiment of the present invention, the two ends of the detection base have a first rotating shaft arranged coaxially, and the particle detection device further includes a mounting frame and a frame;

[0025] The mounting frame is a rectangular frame structure, and the detection seat is rotatably mounted on both sides of the mounting frame via two first rotating shafts;

[0026] The other two sides of the mounting frame have coaxially arranged second rotating shafts, the axes of the second rotating shafts are perpendicular to the axis of the first rotating shaft, and the mounting frame is rotatably mounted on both ends of the frame through the two second rotating shafts.

[0027] The arrangement of the first rotating shaft and the second rotating shaft can play a stabilizing role, so that the position of the detection seat is stable, reducing the impact of the movement of ships on the sea surface on the detection seat, and ensuring the smooth progress of the detection work.

[0028] In one embodiment of the present invention, the first cover plate has a through opening in the middle, and the second cover plate is rotatably mounted on the inner side of the first cover plate;

[0029] In the first state, the second cover plate completely opens the through-hole under the action of its own gravity, and the particulate matter can enter the collection cylinder through the through-hole;

[0030] In the second state, the second cover completely closes the through-opening under the action of its own weight.

[0031] The design of the through-port and the second cover plate ensures that in the first state, the opening and closing assembly does not need to operate the first cover plate. After the first state is switched to the second state, the through-port can be closed by its own gravity, and the particulate matter can be sealed in the collection tube.

[0032] In one embodiment of the present invention, the photographing mechanism includes a camera, a microscope, and a focus adjustment component that are arranged in sequence.

[0033] The shooting mechanism is an existing component that can shoot particulate matter. In actual use, existing algorithms can be used to process the obtained photos and analyze relevant characteristics of the particulate matter, such as sedimentation velocity.

[0034] An existing analysis method is:

[0035] Receiving two consecutive frames of images obtained by the shooting mechanism;

[0036] Perform image processing enhancement on the image and binarize the particle image;

[0037] Scan and determine the center point of the particle, and use the center point to represent the corresponding particle;

[0038] The matching correlation algorithm is used to perform correlation matching on single particles in two consecutive frames to achieve particle tracking;

[0039] The particle settling velocity is calculated using the particle displacement and time information of two consecutive frames.

[0040] In one embodiment of the present invention, a first telescopic element is further installed on the rotating frame, and the telescopic rod of the first telescopic element is fixed to the side wall of the collecting tube. The first telescopic element can move the collecting tube away from the sampling and detection tube along the axial direction of the collecting tube.

[0041] In actual use, when the particle detection device is at the second set depth, the first telescopic element is first operated to move the collecting cylinder upward, increasing the distance between the collecting cylinder and the sampling and detection cylinder, which can increase the time for the particles to fall. In this way, after the opening component opens the first cover, the influence of the first cover on the sedimentation of the particles can be reduced, making the detection data more accurate.

[0042] In one embodiment of the present invention, the side of the first cover plate has a mounting portion, the mounting portion has a strip-shaped hole, and the opening and closing assembly includes:

[0043] a second telescopic element fixed to the side wall of the collecting cylinder;

[0044] A connecting piece is passed through the strip-shaped hole of the mounting portion, and the connecting piece is fixed to the telescopic rod of the second telescopic element.

[0045] In one embodiment of the present invention, the detection seat is provided with an installation avoidance opening, and the rotating frame is rotatably installed on the side wall of the installation avoidance opening via a rotating shaft.

[0046] The design of the installation avoidance opening can form an avoidance space for the rotating frame to rotate.

[0047] In one embodiment of the present invention, the driving mechanism includes:

[0048] A first gear, fixed on the rotating shaft of the rotating frame;

[0049] The driving motor is fixed on the detection seat;

[0050] The second gear is fixed on the output shaft of the driving motor, and the second gear is directly or indirectly engaged with the first gear.

[0051] In one embodiment of the present invention, the upper portion of the frame has a lifting ring for connecting and fixing the cable.

[0052] In one embodiment of the present invention, a counterweight is installed at the bottom of the detection base. The counterweight can make the position of the detection base more stable.

[0053] The present invention has the following advantages: the driving mechanism can drive the rotating frame to rotate 180 degrees as a whole, thereby changing the vertical position of the sampling and detection cylinder and the collection cylinder. By capturing and releasing the collection cylinder, it is possible to detect particulate matter at different seabed depths. Because the particulate matter is captured in advance, the second detection can be carried out more efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 is a schematic diagram of the particle detection device when the rotating frame is in the first state;

[0055] Figure 2is a schematic diagram of the particulate matter detection device at another angle when the rotating frame is in the first state;

[0056] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0057] Figure 4 is a cross-sectional view of the collecting cylinder and the first cover plate when the rotating frame is in the first state;

[0058] Figure 5 It is a schematic diagram of the rotating frame rotating 90°;

[0059] Figure 6 is a schematic diagram of the particle detection device when the rotating frame is in the second state;

[0060] Figure 7 is a cross-sectional view of the collecting cylinder and the first cover plate when the rotating frame is in the second state;

[0061] Figure 8 is a schematic diagram of the rotating frame in the second state after the first telescopic element is in operation;

[0062] Figure 9 yes Figure 8 Schematic diagram after the first cover is opened;

[0063] Figure 10 yes Figure 9 Enlarged view of point B in the middle.

[0064] The reference numerals in the figures are:

[0065] 100. Detection seat; 101. Installation avoidance; 102. First rotating axis; 200. Rotating frame; 201. Rotating axis; 1. Sampling detection tube; 2. Shooting mechanism; 21. Camera; 22. Microscope; 23. Focus adjustment assembly; 3. Light-emitting element; 4. Collecting tube; 41. Opening; 5. First cover plate; 51. Through-hole; 52. Second cover plate; 53. Mounting part; 531. Strip hole; 6. Opening and closing assembly; 61. Second telescopic element; 62. Connecting piece; 7. First telescopic element; 300. Driving mechanism; 301. First gear; 302. Driving motor; 303. Second gear; 400. Mounting frame; 401. Second rotating axis; 500. Frame; 501. Lifting ring. DETAILED DESCRIPTION

[0066] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0067] In the description of this application, it should be noted that the terms "inner" and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0068] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0069] The present invention will be described in detail below with reference to the accompanying drawings.

[0070] like Figures 1 to 10 As shown, a particle detection device includes a detection base 100, a rotating frame 200 and a driving mechanism 300;

[0071] The rotating frame 200 is rotatably mounted on the detection base 100, and the driving mechanism 300 is used to drive the rotating frame 200 to rotate;

[0072] like Figure 1 and 3 As shown, the rotating frame 200 is equipped with:

[0073] The sampling and detection cylinder 1 is provided through the top and bottom for allowing particles to pass through. The side wall of the sampling and detection cylinder 1 has at least one light-transmitting area;

[0074] The photographing mechanism 2 is aimed at the light-transmitting area of the sampling and detecting cylinder 1 and is used to photograph the particles in the sampling and detecting cylinder 1;

[0075] The light emitting element 3 is mounted on the side wall of the sampling and detecting cylinder 1;

[0076] The collecting tube 4 is closed at one end and has an opening 41 at the other end. The opening 41 of the collecting tube 4 corresponds to the end of the sampling and detecting tube 1.

[0077] The first cover plate 5 is mounted at the opening 41 of the collecting cylinder 4, and

[0078] An opening and closing assembly 6, used for driving the first cover plate 5 to open or close the opening 41;

[0079] The rotating frame 200 has a first state and a second state; in the first state, Figure 1 The opening 41 of the collecting cylinder 4 is located directly below the sampling and detecting cylinder 1 , and the collecting cylinder 4 is capable of collecting particles that pass through the sampling and detecting cylinder 1 ;

[0080] In the second state, see Figure 8 , the rotating frame 200 rotates 180° relative to the first state, see Figure 9 and 10 By opening the first cover 5 , the particles collected by the collecting cylinder 4 can be allowed to settle freely and fall into the sampling and detection cylinder 1 below.

[0081] One working principle of the particle detection device of this application:

[0082] The particle detection device is lowered into the ocean via a cable to a first set depth. The rotating frame 200 is in a first state. After a period of time, particles fall into the sampling and detection cylinder 1. The particles are then photographed by the photographing mechanism 2 (the photographed data can be analyzed after the entire operation is completed to obtain relevant information about the particle detection, such as settling velocity). The particles finally fall into the collecting cylinder 4 located directly below the sampling and detection cylinder 1.

[0083] After the detection work is completed at the first set depth, the driving mechanism 300 rotates the rotating frame 200 180 degrees, and the rotating frame 200 switches to the second state. At this time, the first cover plate 5 closes the opening 41 of the collection cylinder 4, and the collected particulate matter is located in the collection cylinder 4;

[0084] Adjust the release distance of the cable so that the release depth becomes the second set depth. After stabilization for a period of time, open the first cover 5 through the opening 41 component to allow the particles collected by the collection cylinder 4 to settle freely and fall into the sampling and detection cylinder 1 below, and the particles are photographed by the shooting mechanism 2.

[0085] The present application uses a driving mechanism 300 to drive the rotating frame 200 to rotate 180 degrees as a whole, thereby changing the vertical position of the sampling and detection cylinder 1 and the collection cylinder 4. By capturing and releasing particles by the collection cylinder 4, it is possible to detect particles at different depths. Because particles are captured in advance, the second detection can be carried out more efficiently.

[0086] In practical application, preferably, the particulate matter in this application refers to particulate organic carbon.

[0087] The light emitting element 3 can provide supplementary light when the light is dim deep under the sea, cooperating with the shooting work of the shooting mechanism 2.

[0088] like Figure 1As shown, in this embodiment, the two ends of the detection base 100 have a first rotating shaft 102 arranged coaxially, and the particle detection device further includes a mounting frame 400 and a frame 500;

[0089] The mounting frame 400 is a rectangular frame structure, and the detection base 100 is rotatably mounted on both sides of the mounting frame 400 via two first rotation shafts 102;

[0090] The other two sides of the mounting frame 400 have coaxially arranged second rotating shafts 401 , the axes of the second rotating shafts 401 are perpendicular to the axis of the first rotating shaft 102 , and the mounting frame 400 is rotatably mounted on both ends of the frame 500 via the two second rotating shafts 401 .

[0091] The arrangement of the first rotating shaft 102 and the second rotating shaft 401 can play a stabilizing role, so that the position of the detection seat 100 is stable, reducing the impact of the movement of ships on the sea surface on the detection seat 100, and ensuring the smooth progress of the detection work.

[0092] like Figure 3 、 Figure 4 and Figure 7 As shown, in this embodiment, the middle portion of the first cover plate 5 has a through opening 51, and the inner side of the first cover plate 5 is rotatably mounted with a second cover plate 52;

[0093] In the first state, the second cover plate 52 completely opens the through-hole 51 under the action of its own gravity, and the particles can enter the collecting cylinder 4 through the through-hole 51;

[0094] In the second state, the second cover plate 52 completely closes the through-opening 51 under the action of its own weight.

[0095] The design of the through-hole 51 and the second cover plate 52 allows the opening and closing component 6 to not operate the first cover plate 5 in the first state. After the first state is switched to the second state, the through-hole 51 can be closed by its own gravity, and the particulate matter can be sealed in the collection tube 4.

[0096] like Figure 1 As shown, in this embodiment, the photographing mechanism 2 includes a camera 21 , a microscope 22 and a focus adjustment component 23 which are arranged in sequence.

[0097] The photographing mechanism 2 is an existing component capable of photographing particulate matter. In actual use, existing algorithms can be used to process the obtained photos and analyze relevant characteristics of the particulate matter, such as sedimentation velocity.

[0098] like Figure 1 、 Figure 6 、 Figure 8 、 Figure 9 and Figure 10As shown, in this embodiment, a first telescopic element 7 is also installed on the rotating frame 200, and the telescopic rod of the first telescopic element 7 is fixed to the side wall of the collecting tube 4. The first telescopic element 7 can move the collecting tube 4 away from the sampling and detection tube 1 along the axial direction of the collecting tube 4.

[0099] In actual use, when the particle detection device is at the second set depth, the first telescopic element 7 is first operated to move the collecting cylinder 4 upward, thereby increasing the distance between the collecting cylinder 4 and the sampling detection cylinder 1, which can increase the time for the particles to fall. In this way, after the opening 41 component opens the first cover 5, the influence of the first cover 5 on the sedimentation of the particles can be reduced, making the detection data more accurate.

[0100] like Figure 3 and Figure 10 As shown, in this embodiment, the side of the first cover plate 5 has a mounting portion 53, and the mounting portion 53 has a strip-shaped hole 531. The opening and closing component 6 includes:

[0101] The second telescopic element 61 is fixed to the side wall of the collecting tube 4;

[0102] The connecting member 62 is passed through the strip-shaped hole 531 of the mounting portion 53 , and the connecting member 62 is fixed to the telescopic rod of the second telescopic element 61 .

[0103] like Figure 1 As shown, in this embodiment, the detection base 100 has an installation avoidance opening 101 , and the rotating frame 200 is rotatably installed on the side wall of the installation avoidance opening 101 via a rotating shaft 201 .

[0104] The design of the installation avoidance opening 101 can form an avoidance space for the rotation frame 200 to rotate, such as Figure 5 As shown, the interference between the rotating frame 200 and the detection base 100 can be effectively prevented.

[0105] like Figure 1 As shown, in this embodiment, the driving mechanism 300 includes:

[0106] The first gear 301 is fixed on the rotating shaft 201 of the rotating frame 200;

[0107] The driving motor 302 is fixed on the detection base 100;

[0108] The second gear 303 is fixed on the output shaft of the driving motor 302 , and the second gear 303 is directly or indirectly engaged with the first gear 301 .

[0109] like Figure 1 As shown, in this embodiment, the upper portion of the rack 500 has a lifting ring 501. The lifting ring 501 is used to connect and fix with the cable.

[0110] In actual use, a counterweight is installed at the bottom of the detection base 100. The counterweight can make the position of the detection base 100 more stable.

[0111] The above description is only a preferred embodiment of the present invention and does not limit the scope of patent protection of the present invention. Any equivalent structural transformation made by using the contents of the description and drawings of the present invention, directly or indirectly applied to other related technical fields, is also included in the scope of protection of the present invention.

Claims

1. A particle detection device, wherein the particle is particulate organic carbon, characterized in that: It includes a detection seat, a rotating frame and a driving mechanism; The rotating frame is rotatably mounted on the detection seat, and the driving mechanism is used to drive the rotating frame to rotate; The rotating frame is equipped with: A sampling and detection cylinder is provided through-hole from top to bottom for allowing particles to pass through, and the side wall of the sampling and detection cylinder has at least one light-transmitting area; A photographing mechanism, aimed at the light-transmitting area of the sampling and detecting cylinder, is used to photograph the particles in the sampling and detecting cylinder to obtain the settling velocity of the particles; The light emitting element is installed on the side wall of the sampling and detection cylinder; A collecting cylinder, one end of which is closed and the other end of which is open, wherein the opening of the collecting cylinder corresponds to the end of the sampling and testing cylinder; a first cover plate, mounted at the opening of the collecting cylinder, and an opening and closing assembly, configured to drive the first cover plate to open or close the opening; The rotating frame has a first state and a second state; In the first state, the opening of the collecting cylinder is located directly below the sampling and detecting cylinder, and the collecting cylinder is capable of collecting particles that pass through the sampling and detecting cylinder; In the second state, the rotating frame rotates 180 degrees relative to the first state, the first cover closes the opening of the collecting cylinder, and the collected particulate matter is located in the collecting cylinder; The particle detection device is dropped into the ocean via a cable, and the drop depth is a first set depth. At this time, the rotating frame is in a first state. After the detection work is completed at the first set depth, the rotating frame switches to a second state. The release distance of the cable is adjusted so that the drop depth becomes the second set depth. After stabilizing for a certain period of time, the first cover is opened through the opening component to allow the particles collected in the collection cylinder to settle freely and fall into the sampling detection cylinder below.

2. The particle detection device according to claim 1, wherein: The two ends of the detection seat have a first rotating shaft arranged coaxially, and the particle detection device also includes a mounting frame and a frame; The mounting frame is a rectangular frame structure, and the detection seat is rotatably mounted on both sides of the mounting frame via two first rotating shafts; The other two sides of the mounting frame have coaxially arranged second rotating shafts, the axes of the second rotating shafts are perpendicular to the axis of the first rotating shaft, and the mounting frame is rotatably mounted on both ends of the frame through the two second rotating shafts.

3. The particle detection device according to claim 1, wherein: The first cover plate has a through opening in the middle, and a second cover plate is rotatably mounted on the inner side of the first cover plate; In the first state, the second cover plate completely opens the through-hole under the action of its own gravity, and the particulate matter can enter the collection cylinder through the through-hole; In the second state, the second cover completely closes the through-opening under the action of its own weight.

4. The particle detection device according to claim 1, wherein: The shooting mechanism includes a camera, a microscope and a focus adjustment component which are arranged in sequence.

5. The particle detection device according to claim 1, wherein: A first telescopic element is also mounted on the rotating frame. The telescopic rod of the first telescopic element is fixed to the side wall of the collecting cylinder. The first telescopic element can move the collecting cylinder away from the sampling and detecting cylinder along the axial direction of the collecting cylinder.

6. The particle detection device according to claim 1, wherein: The side of the first cover plate has a mounting portion, and the mounting portion has a strip-shaped hole. The opening and closing assembly includes: a second telescopic element fixed to the side wall of the collecting cylinder; A connecting piece is passed through the strip-shaped hole of the mounting portion, and the connecting piece is fixed to the telescopic rod of the second telescopic element.

7. The particle detection device according to claim 1, wherein: The detection seat is provided with an installation avoidance opening, and the rotating frame is rotatably installed on the side wall of the installation avoidance opening through a rotating shaft.

8. The particle detection device according to claim 7, wherein: The driving mechanism comprises: A first gear, fixed on the rotating shaft of the rotating frame; The driving motor is fixed on the detection seat; The second gear is fixed on the output shaft of the driving motor, and the second gear is directly or indirectly engaged with the first gear.

9. The particle detection device according to claim 2, wherein: The upper part of the frame is provided with a lifting ring.

10. The particle detection device according to claim 1, wherein: A counterweight is installed at the bottom of the detection seat.

Images