Fish manure in-situ natural digestion test device and test method

Abstract

The invention provides a fish manure in-situ natural digestion test device and test method, the test device is a net cage, the net cage is made of nylon gauze, the net cage is internally provided with a containing cavity, the upper part of the net cage is provided with a throwing port, and the throwing port is communicated with the containing cavity; the net cage is arranged in the fixed frame, the net cage is movably connected with the fixed frame, a throwing fixing part is arranged at the top of the fixed frame, and the fixed frame is connected with the aquaculture net cage through the throwing fixing part. According to the fish manure in-situ natural digestion test device, digestion observation can be efficiently carried out on fresh fish manure in a marine ranch in situ in real time, so that the influence of fish manure accumulation in the marine ranch on a nearby sea area environment is evaluated.

Description

Technical Field

[0001] The present application relates to the field of marine aquaculture technology, and in particular to a device and method for testing the in-situ natural digestion of fish feces. Background Art

[0002] In order to verify the natural decomposition time of fresh fish feces in the ocean ranch in seawater and evaluate the environmental impact of the accumulation of fish feces in the ocean ranch on the nearby sea area, it is necessary to conduct an in-situ dispersion test on fresh fish feces in the ocean ranch. However, there is no in-situ dispersion test on fresh fish feces in the ocean ranch in the prior art, so it is impossible to verify the natural decomposition time of fresh fish feces in the ocean ranch in seawater. Summary of the invention

[0003] The present application provides a fish feces in-situ natural digestion test device and test method to solve the problems existing in the related technology. The technical solution is as follows:

[0004] In a first aspect, the present application provides a fish feces in-situ natural digestion test device, comprising:

[0005] The net box is made of nylon mesh, has a containing cavity inside, and has a delivery port at the top of the net box, which is connected to the containing cavity;

[0006] A fixed frame, a net cage is placed inside the fixed frame, the net cage is movably connected to the fixed frame, a delivery fixture is provided on the top of the fixed frame, and the fixed frame is connected to the breeding net cage through the delivery fixture.

[0007] In one embodiment, a movable connection portion is provided on the net box, a movable connection assembly is provided on the fixed frame, and the movable connection portion is movably connected to the movable connection assembly.

[0008] In one embodiment, the articulation assembly comprises:

[0009] A connecting rod, the bottom of which is fixed on the fixed frame, and the movable connecting part passes through the top of the connecting rod and is sleeved on the connecting rod;

[0010] The movable connection lock is movably connected to the connecting rod. After the movable connection part is sleeved on the connecting rod, the movable connection part is clamped on the connecting rod through the movable connection lock.

[0011] In one embodiment, the movable connection lock includes:

[0012] Locking buckle to fix the shaft;

[0013] A first clamping portion, the first clamping portion is hinged to the lock fixing shaft, and the first clamping portion has a first clamping groove;

[0014] The second clamping part is hinged with the lock fixing shaft, and has a second clamping groove. The second clamping groove is arranged opposite to the first clamping groove. The first clamping part and the second clamping part clamp the connecting rod inside the first clamping groove and the second clamping groove.

[0015] In one embodiment, the movable connecting lock also includes two lock connecting plates, and there are two first clamping parts and two second clamping parts. The two first clamping parts are respectively hinged to the two ends of the lock fixing shaft, and the two second clamping parts are respectively hinged to the two ends of the lock fixing shaft, wherein the two ends of one lock connecting plate are respectively connected to the two first clamping parts, and the two ends of the other lock connecting plate are respectively connected to the two second clamping parts.

[0016] In one embodiment, the fixed frame includes a frame bottom plate, a plurality of frame support rods and a top fixed ring. The frame bottom plate and the top fixed ring are arranged opposite to each other. The two ends of the plurality of frame support rods are respectively connected to the frame bottom plate and the top fixed ring. A through hole is provided in the middle of the frame bottom plate. The net cage is placed above the through hole, and a fixing piece is placed and fixed on the top fixed ring.

[0017] In one embodiment, the bottom of the connecting rod is fixed to the frame bottom plate, and the connecting rod is arranged close to the through hole.

[0018] In a second aspect, an embodiment of the present application provides a method for testing the in-situ natural digestion of fish feces. The method adopts the in-situ natural digestion test device for fish feces as described in any one of the above items. The method comprises the following steps:

[0019] Collect fresh fish feces from the ocean ranch;

[0020] The collected fresh fish feces are placed into the cages of multiple fish feces in-situ natural digestion test devices through the placing port, and the placing port is sealed;

[0021] A steel wire rope is tied to the fixed frame, one end of which is tied to the aquaculture cage, and multiple fish feces in-situ natural digestion test devices are placed in different areas of the aquaculture ranch sea area;

[0022] Regularly observe and record the digestion of fresh fish feces in the fish feces in-situ natural digestion test device.

[0023] In one embodiment, after placing a plurality of fish feces in-situ natural digestion test devices in different areas of the breeding pasture area, the method further comprises:

[0024] Deploy current meters, wave meters and tide meters in the marine ranch area;

[0025] During the observation of fresh fish feces in the fish feces in-situ natural digestion test device, the monitoring information of the current meter, wave meter and tide meter was obtained.

[0026] In one embodiment, the weight of fresh fish feces placed in the cage of the fish feces in-situ natural digestion test device is not less than 60g, and the fish feces in-situ natural digestion test device is placed in the sea area of ​​the breeding ranch for two to three months.

[0027] The advantages or beneficial effects of the above technical solution include at least:

[0028] The fish feces in-situ natural digestion test device of the present invention comprises a net box and a fixed frame, the net box is made of nylon mesh, a delivery port is provided on the net box, the net box is movably connected to the fixed frame, and a delivery fixture is provided on the fixed frame. When the fish feces in-situ natural digestion test device is used to conduct the fish feces in-situ natural digestion test in the marine ranch, firstly, fresh fish feces in the marine ranch are collected, and then the collected fresh fish feces are put into the net box through the delivery port, then a steel wire rope is tied to the delivery fixture, and one end of the steel wire rope is tied to the breeding net box, and then the fish feces in-situ natural digestion test device is put into different areas of the breeding ranch sea area, and finally the digestion of fresh fish feces in the fish feces in-situ natural digestion test device is regularly observed and recorded. The present invention can observe the digestion of fresh fish feces in the marine ranch in real time and efficiently in situ through the fish feces in-situ natural digestion test device, so as to evaluate the impact of the accumulation of fish feces in the marine ranch on the environment of the nearby sea area.

[0029] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0031] Figure 1 It is a structural schematic diagram of the fish feces in-situ natural digestion test device;

[0032] Figure 2 Another structural schematic diagram of the fish feces in-situ natural digestion test device;

[0033] Figure 3 It is a structural schematic diagram of the cage;

[0034] Figure 4 It is a schematic diagram of the structure of the movable connection lock;

[0035] Description of reference numerals:

[0036] 1. Net box; 2. Fixed frame; 11. Accommodating cavity; 12. Delivery port; 3. Delivery fixture; 13. Active connection part; 4. Active connection assembly; 41. Connecting rod; 42. Active connection lock; 421. Lock fixing shaft; 422. First clamping part; 423. Second clamping part; 424. First clamping groove; 425. Second clamping groove; 426. Lock connecting plate; 427. Connecting hole; 428. Protrusion; 21. Frame bottom plate; 22. Frame support rod; 23. Top fixing ring; 24. Through hole. DETAILED DESCRIPTION

[0037] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0038] Embodiment 1:

[0039] like Figures 1 to 4 As shown, the embodiment of the present application provides a fish feces in-situ natural digestion test device, including a net box 1 and a fixed frame 2. The net box 1 is made of nylon mesh, and has a containing cavity 11 inside the net box 1. The upper part of the net box 1 has a delivery port 12, and the delivery port 12 is connected to the containing cavity 11. The net box 1 is placed inside the fixed frame 2, and the net box 1 is movably connected to the fixed frame 2. The top of the fixed frame 2 is provided with a delivery fixture 3, and the fixed frame 2 is connected to the breeding net box through the delivery fixture 3.

[0040] When using the fish feces in-situ natural digestion test device to conduct a fish feces in-situ natural digestion test in a marine ranch, first collect fresh fish feces in the marine ranch, then put the collected fresh fish feces into the net cage 1 through the delivery port 12, then tie a steel wire rope to the delivery fixture 3, and tie one end of the steel wire rope to the aquaculture net cage, then put the fish feces in-situ natural digestion test device into different areas of the aquaculture ranch sea area, and finally regularly observe and record the digestion of fresh fish feces in the fish feces in-situ natural digestion test device. In this embodiment, the fish feces in-situ natural digestion test device can be used to observe the digestion of fresh fish feces in the marine ranch in real time and efficiently, thereby evaluating the impact of the accumulation of fish feces in the marine ranch on the nearby sea environment.

[0041] In one embodiment, the net box 1 is made of 1000 mesh nano-grade nylon mesh, and the size of the net box 1 is 25cm*25cm*47cm. Since the net box 1 is made of 1000 mesh nano-grade nylon mesh, fresh fish feces can be placed in the net box 1 to ensure that the fish feces will not leak, and at the same time, the digestion of the fresh fish feces will not be affected. Since the net box 1 is provided with a delivery port 12, in order to prevent the fresh fish feces from drifting out of the delivery port 12, after the fresh fish feces are placed in the net box 1, a portable electric sewing machine can be used to seal the delivery port 12. Preferably, the width of the delivery port 12 is 2cm, and the delivery port 12 can be a square delivery port 12.

[0042] In one embodiment, in order to realize the movable connection between the net box 1 and the fixed frame 2, a movable connection part 13 is provided on the net box 1, and a movable connection assembly 4 is provided on the fixed frame 2, and the movable connection part 13 is movably connected with the movable connection assembly 4. Further, the movable connection part 13 can be a movable connection sleeve, which is also made of nylon mesh, and the movable connection sleeve is sewn on the four sides of the net box 1, and both ends of the movable connection sleeve have openings.

[0043] Specifically, the movable connection assembly 4 includes a connecting rod 41 and a movable connection lock 42. The bottom of the connecting rod 41 is fixed to the fixed frame 2, and the movable connection portion 13 passes through the top of the connecting rod 41 and is sleeved on the connecting rod 41. The movable connection lock 42 is movably connected to the connecting rod 41, and after the movable connection portion 13 is sleeved on the connecting rod 41, the movable connection portion 13 is clamped on the connecting rod 41 through the movable connection lock 42.

[0044] Since the movable connection part 13 is a movable connection sleeve and both ends thereof have openings, it is relatively easy to sleeve the movable connection sleeve on the connecting rod 41. Since there are four movable connection parts 13, the number of movable connection components 4 is also set to four, and the four movable connection sleeves are sleeved on the four connecting rods 41 of the four movable connection components 4 respectively.

[0045] In one embodiment, in order to achieve the clamping and fixing of the movable connection part 13 on the connecting rod 41, the movable connection lock 42 includes a lock fixing shaft 421, a first clamping part 422 and a second clamping part 423. Among them, the first clamping part 422 is hinged to the lock fixing shaft 421, and the first clamping part 422 has a first clamping groove 424; the second clamping part 423 is also hinged to the lock fixing shaft 421, and the second clamping part 423 has a second clamping groove 425. The second clamping groove 425 is arranged opposite to the first clamping groove 424, and the first clamping part 422 and the second clamping part 423 clamp the connecting rod 41 inside the first clamping groove 424 and the second clamping groove 425.

[0046] In one embodiment, in order to ensure that the first clamping portion 422 and the second clamping portion 423 can remain stable after the movable connection portion 13 is clamped on the connecting rod 41, the friction force at the hinge between the first clamping portion 422, the second clamping portion 423 and the lock fixing shaft 421 can be increased, and the roughness of the hinge contact surface can be increased so that the first clamping portion 422 and the second clamping portion 423 can remain in place without applying external force.

[0047] In order to make the movable connection part 13 more firmly fixed on the connecting rod 41, the movable connection lock 42 also includes two lock connection plates 426. There are two first clamping parts 422 and two second clamping parts 423. The two first clamping parts 422 are respectively hinged to the two ends of the lock fixing shaft 421, and the two second clamping parts 423 are respectively hinged to the two ends of the lock fixing shaft 421. The two ends of one lock connection plate 426 are respectively connected to the two first clamping parts 422, and the two ends of the other lock connection plate 426 are respectively connected to the two second clamping parts 423.

[0048] In order to realize the connection between the lock connecting plate 426 and the two first clamping parts 422, and to realize the connection between the lock connecting plate 426 and the two second clamping parts 423, connection holes 427 are provided on the first clamping part 422 and the second clamping part 423, and protrusions 428 are provided at both ends of the lock connecting plate 426, respectively, and the protrusions 428 match the connection holes 427. The lock connecting plate 426 can be connected to the two first clamping parts 422 by inserting the protrusions at both ends of the lock connecting plate 426 into the connection holes 427 on the two first clamping parts 422; the lock connecting plate 426 can be connected to the two second clamping parts 423 by inserting the protrusions 428 at both ends of the lock connecting plate 426 into the connection holes 427 on the two second clamping parts 423.

[0049] Preferably, two movable connection locks 42 are clamped on each connecting rod 41, and the two movable connection locks 42 are respectively located at both ends of the connecting rod 41, thereby clamping both ends of the movable connection part 13 so that both ends of the movable connection part 13 can be firmly fixed.

[0050] In other embodiments, a spring may be provided between the first clamping portion 422 and the second clamping portion 423. After the movable connection lock 42 is clamped on the connecting rod 41, when the first clamping portion 422 and the second clamping portion 423 are released, the first clamping portion 422 and the second clamping portion 423 generate a clamping force under the elastic force of the elastic member, thereby clamping the movable connection lock 42 on the connecting rod 41. After the lock is unlocked, the net box 1 can be directly removed from the fixed frame 2.

[0051] In one embodiment, the fixed frame 2 includes a frame bottom plate 21, a plurality of frame support rods 22 and a top fixing ring 23. The frame bottom plate 21 and the top fixing ring 23 are arranged opposite to each other, and the two ends of the plurality of frame support rods 22 are respectively connected to the frame bottom plate 21 and the top fixing ring 23, and the plurality of frame support rods 22 are arranged at intervals. A through hole 24 is provided in the middle of the frame bottom plate 21, the net cage 1 is placed above the through hole 24, and the delivery fixture 3 is fixed on the top fixing ring 23.

[0052] The fixed frame 2 and the movable connection assembly 4 can be made of 304 stainless steel, and the overall shape of the fixed frame 2 is set to a cylindrical structure, and the net box 1 is placed in the middle of the cylindrical structure. The fixed frame 2 plays a role in shaping and protecting the net box 1. The overall weight of the fixed frame 2 and the net box 1 combined is about 18kg. The frame support rod 22 can be connected to the frame bottom plate 21 and the top fixing ring 23 by welding or other methods.

[0053] The bottom of the connecting rod 41 is fixed on the frame bottom plate 21, and the connecting rod 41 is arranged near the through hole 24. In order to realize the connection between the connecting rod 41 and the frame bottom plate 21, the bottom of the connecting rod 41 passes through the frame bottom plate 21 and can be fixed by a nut, thereby realizing the fixing of the connecting rod 41 on the frame bottom plate 21.

[0054] In one embodiment, the placing fixture 3 is a fixed ear hanger, and the number of the placing fixtures 3 is four. The four placing fixtures 3 are evenly distributed on the top fixing ring 23. By tying steel wire ropes on the four placing fixtures 3, the connection between the fish feces in-situ natural digestion test device and the breeding cage can be achieved, thereby facilitating the recovery of the fish feces in-situ natural digestion test device and the observation of the fish feces digestion situation.

[0055] Embodiment 2:

[0056] The present embodiment is described in detail below with reference to the first embodiment:

[0057] The present application provides a method for testing the in-situ natural digestion of fish feces. The method adopts the in-situ natural digestion test device for fish feces as described in the first embodiment. The method comprises the following steps:

[0058] Collect fresh fish feces from the ocean ranch;

[0059] The collected fresh fish feces are placed into the cage 1 of the multiple fish feces in-situ natural digestion test device through the placing port 12, and the placing port 12 is sealed;

[0060] A steel wire rope is tied to the fixed frame 2, one end of which is tied to the aquaculture cage, and a plurality of fish feces in-situ natural digestion test devices are placed in different areas of the aquaculture ranch sea area;

[0061] Regularly observe and record the digestion of fresh fish feces in the fish feces in-situ natural digestion test device.

[0062] Among them, the weight of fresh fish feces placed in the net cage 1 of the fish feces in-situ natural digestion test device is not less than 60g. After the fish feces are placed, the placement port 12 on the net cage 1 is sealed using a portable electric sewing machine. Then a steel wire rope is tied to the placement fixture 3 of the fixed frame 2, and one end of the steel wire rope is tied to the breeding net cage. Then the fish feces in-situ natural digestion test device is slowly placed on the seabed or the middle layer of seawater. There can be multiple fish feces in-situ natural digestion test devices, which are placed in different positions of the marine ranch, so as to observe the digestion of fish feces at different positions. Before the fish feces in-situ natural digestion test device is placed, it needs to be numbered.

[0063] The fish manure in-situ natural digestion test device is placed in the aquaculture ranch sea area for two to three months. The fish manure digestion status of each observation point is regularly checked and recorded, and the entire test process can be recorded by taking photos and audio and video materials.

[0064] After placing multiple fish manure in-situ natural digestion test devices in different areas of the breeding ranch area, it also includes:

[0065] Deploy current meters, wave meters and tide meters in the marine ranch area;

[0066] During the observation of fresh fish feces in the fish feces in-situ natural digestion test device, the monitoring information of the current meter, wave meter and tide meter was obtained.

[0067] By monitoring the flow rate information through a current meter, the wave information through a wave meter, and the tide level information through a tide meter, we can obtain the impact of the above monitored information on the dissipation rate of fish feces, summarize the boundary conditions for the dissipation of fish feces, and explore the regularity of the dissipation of deep-sea aquaculture fish feces.

[0068] After the fish feces in-situ natural digestion test method is completed, the fish feces in-situ natural digestion test device is extracted from the sea, and then the movable connection lock 42 is loosened, the net cage 1 is removed, and the fish feces in-situ natural digestion test device is disposed of.

[0069] In this embodiment, the fish feces in-situ natural digestion test device can be used to observe the digestion of fresh fish feces in the marine ranch in real time and efficiently, so as to evaluate the impact of the accumulation of fish feces in the marine ranch on the nearby marine environment.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 application. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0071] In addition, the terms "first" and "second" 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 at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0072] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. Fish feces in-situ natural digestion test device, characterized in that: include: A net box, the net box is made of nylon mesh, the inside of the net box has a containing cavity, the upper part of the net box has a delivery port, and the delivery port is connected to the containing cavity; A fixed frame, the net cage is placed inside the fixed frame, the net cage is movably connected to the fixed frame, a delivery fixture is provided on the top of the fixed frame, and the fixed frame is connected to the breeding net cage through the delivery fixture.

2. The fish feces in-situ natural digestion test device according to claim 1, characterized in that: The net box is provided with a movable connection part, the fixed frame is provided with a movable connection component, and the movable connection part is movably connected with the movable connection component.

3. The fish feces in-situ natural digestion test device according to claim 2, characterized in that: The active connection component comprises: A connecting rod, the bottom of which is fixed to the fixed frame, and the movable connecting part passes through the top of the connecting rod and is sleeved on the connecting rod; A movable connection lock, wherein the movable connection lock is movably connected to the connecting rod, and after the movable connection part is sleeved on the connecting rod, the movable connection part is clamped on the connecting rod through the movable connection lock.

4. The fish feces in-situ natural digestion test device according to claim 3, characterized in that: The movable connection lock comprises: Locking buckle to fix the shaft; A first clamping portion, the first clamping portion is hinged to the lock fixing shaft, and the first clamping portion has a first clamping groove; The second clamping part is hinged to the lock fixing shaft, and the second clamping part has a second clamping groove, and the second clamping groove is arranged opposite to the first clamping groove, and the first clamping part and the second clamping part clamp the connecting rod inside the first clamping groove and the second clamping groove.

5. The fish feces in-situ natural digestion test device according to claim 4, characterized in that: The movable connection lock also includes two lock connecting plates, and there are two first clamping parts and two second clamping parts. The two first clamping parts are respectively hinged to the two ends of the lock fixing shaft, and the two second clamping parts are respectively hinged to the two ends of the lock fixing shaft, wherein the two ends of one of the lock connecting plates are respectively connected to the two first clamping parts, and the two ends of the other lock connecting plate are respectively connected to the two second clamping parts.

6. The fish feces in-situ natural digestion test device according to claim 3, characterized in that: The fixed frame includes a frame bottom plate, multiple frame support rods and a top fixed ring. The frame bottom plate and the top fixed ring are arranged opposite to each other. The two ends of the multiple frame support rods are respectively connected to the frame bottom plate and the top fixed ring. The middle of the frame bottom plate has a through hole. The net box is placed above the through hole, and the delivery fixing piece is fixed on the top fixed ring.

7. The fish feces in-situ natural digestion test device according to claim 6, characterized in that: The bottom of the connecting rod is fixed on the frame bottom plate, and the connecting rod is arranged close to the through hole.

8. The test method for in-situ natural digestion of fish feces is characterized by: The fish feces in-situ natural digestion test method adopts the fish feces in-situ natural digestion test device according to any one of claims 1 to 7, and the fish feces in-situ natural digestion test method comprises the following steps: Collect fresh fish feces from the ocean ranch; Putting the collected fresh fish feces into the net cages of the plurality of fish feces in-situ natural digestion test devices through the delivery port, and sealing the delivery port; A steel wire rope is tied to the fixed frame, one end of which is tied to the aquaculture cage, and a plurality of fish feces in-situ natural digestion test devices are placed in different areas of the aquaculture ranch sea area; The digestion of the fresh fish feces in the fish feces in-situ natural digestion test device is regularly observed and recorded.

9. The fish feces in-situ natural digestion test method according to claim 8, characterized in that: After placing a plurality of the fish feces in-situ natural digestion test devices in different areas of the breeding pasture area, the method further comprises: Deploy current meters, wave meters and tide meters in the marine ranch area; During the observation of the fresh fish feces in the fish feces in-situ natural digestion test device, monitoring information of the current meter, the wave meter and the tide meter is obtained.

10. The fish feces in-situ natural digestion test method according to claim 8, characterized in that: The weight of fresh fish feces placed in the net cage of the fish feces in-situ natural digestion test device is not less than 60g, and the fish feces in-situ natural digestion test device is placed in the sea area of ​​the breeding ranch for two to three months.

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