A temporary water treatment pond for crayfish

Abstract

The utility model relates to the field of aquatic transportation discloses a kind of crawfish temporary rearing water treatment pond, including pond body, the top cover of openable is arranged on the top of pond body, the side wall of pond body is rotatably connected with bottom portion by hinge, the filter plate that is attached with side wall is provided in pond body, vertical upward baffle is provided at filter plate edge, a plurality of groups of filter plate lifting devices are arranged between filter plate and pond body bottom portion, filter plate lifting device can lift filter plate to upper surface and the side wall top end of pond body flush, oxygenation device is provided below filter plate to prevent blocking, impurity scraping device is provided in pond body bottom portion.The utility model has the effect of reducing the mortality of crawfish in the process of transportation, while avoiding crawfish excrement sticking in transport box difficult to clean.

Description

Technical Field

[0001] This utility model relates to the field of aquatic product transportation technology, and in particular to a crayfish temporary holding water treatment pond. Background Technology

[0002] Crayfish is a highly valuable aquatic product, rich in protein and low in fat and calories, making it a premium aquatic delicacy. Crayfish farming in China is becoming increasingly concentrated, mainly in provinces such as Hubei, Anhui, Hunan, Jiangsu, and Jiangxi. Therefore, to meet the demand for crayfish from buyers in other provinces, temporary holding tanks are often installed on trucks, and temporary holding techniques are used to ensure a high survival rate and maintain the weight of edible parts during long-distance transportation.

[0003] Chinese invention patent CN105941294A discloses a method for temporarily holding crayfish in a low-temperature multi-stage recirculating aquaculture system, relating to the field of aquaculture technology. The method includes calculating the circulation rate; placing crayfish in seafood holding tanks; using a vertical flow sedimentator for coarse sedimentation; using a water pump to transport water; using a sand filter to remove microparticles; using a biological filter to remove toxic and harmful organic matter and inorganic salts from the water; using an ultraviolet sterilization device to kill bacteria, toxins, yeast, mold, and algae in the water; using a water chiller to lower the water temperature and maintain it at a constant temperature of 2°C; and aerating the bottom of the biological filter. This method can reduce physiological changes in live crayfish during transportation and improve their survival rate during transport.

[0004] However, its shortcomings are that crayfish are difficult to move quickly during loading and unloading, which causes some crayfish to die from lack of oxygen during transportation. At the same time, crayfish excrement is easy to stick to the side wall of the seafood holding tank, and after a period of time without treatment, the sticking becomes stronger and eventually cannot be cleaned. If the air outlet of the oxygen supply device is blocked by biomass, it will also cause the oxygen content of the water to drop, ultimately causing a large-scale death of crayfish. Utility Model Content

[0005] The purpose of this invention is to provide a crayfish temporary holding water treatment tank, which can reduce the mortality rate of crayfish during transportation and prevent crayfish excrement from sticking to the inside of the transport box and being difficult to clean.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a crayfish temporary holding water treatment pond, including a pond body, an openable and closable top cover, a side wall of the pond body being rotatably connected to the bottom via a hinge, a filter plate fitted to the side wall being installed inside the pond body, a vertically upward baffle plate being installed at the edge of the filter plate, several sets of filter plate lifting devices being installed between the filter plate and the bottom of the pond body, the filter plate lifting devices being able to lift the filter plate until the upper surface is flush with the top of the side wall of the pond body, an anti-clogging oxygenation device being installed below the filter plate, and an impurity scraping device being installed at the bottom of the pond body.

[0007] By adopting the above technical solutions, the top cover is used to prevent direct sunlight from rising the water temperature in the treatment tank, which would increase the mortality rate of crayfish. The side walls and bottom of the tank are hinged to facilitate cleaning personnel to enter the tank for thorough cleaning. During transportation, the crayfish live above the barrier plate, and their excrement will be deposited at the bottom of the tank through the barrier plate, achieving separation of crayfish and waste and preventing the crayfish meat from deteriorating after transportation. The barrier plate can be raised to be flush with the top of the side wall of the tank through the filter plate lifting device below, which facilitates loading and unloading. The anti-clogging oxygenation device oxygenates the water in the tank while preventing the oxygen outlet from being blocked by excrement. The impurity scraping device can continuously and slowly wipe the bottom plate during transportation, preventing excrement from sticking to the bottom of the tank and causing subsequent cleaning difficulties.

[0008] A further feature of this invention is that the barrier plate corresponding to the side wall of the filter plate that is hinged to the pool body can be hinged to the filter plate.

[0009] A further feature of this invention is that the filter plate lifting device includes a cylinder fixed to the bottom of the pool body, the upper end of the cylinder being fixedly connected to the bottom of the baffle plate, a truncated hollow anti-fall plate being provided outside the cylinder barrel, and a truncated scraping device being provided above the anti-fall plate.

[0010] By adopting the above technical solution, the anti-fall plate can prevent crayfish excrement from sinking directly and sticking to the cylinder side wall, thus reducing its lifespan.

[0011] A further feature of this invention is that the frustum scraping device includes a rotating bottom ring connected to the outer wall of the cylinder barrel. The rotating bottom ring can rotate along the axial direction. A driven tooth is provided on the inner wall of the rotating bottom ring. A main gear that cooperates with the driven tooth is provided in the anti-fall plate. A scraping motor that drives the main gear to rotate is provided. A frustum cleaning brush is detachably connected to the outside of the rotating bottom ring. The frustum cleaning brush contacts the upper surface of the anti-fall plate.

[0012] By adopting the above technical solution, the truncated cone scraper can clean the anti-fall plate, further reducing the difficulty of cleaning the pool. The rotating bottom ring drives the truncated cone cleaning brush to continuously clean the upper part of the anti-fall plate. Its exterior uses a waterproof process to prevent water from entering and damaging the scraper motor.

[0013] A further feature of this invention is that the anti-clogging oxygenation device includes an oxygenation pump located at the bottom of the pool, and several oxygenation pump outlet holes are arranged radially along the cylinder below the truncated cone scraper.

[0014] By adopting the above technical solution, the air outlet of the oxygenation pump is also located below the anti-fall plate, which can prevent excrement from blocking the air outlet.

[0015] A further feature of this invention is that an air outlet baffle that can move up and down is provided outside the air outlet of the oxygen pump, and a blocking plate is provided above the air outlet baffle.

[0016] By adopting the above technical solution, when the air outlet of the oxygen pump is not expelling air, the air outlet baffle will fall down to block the air outlet, further reducing the possibility of it being blocked.

[0017] A further feature of this invention is that the impurity scraping device includes a bottom cleaning brush that rotates along the cylinder axis. The bottom cleaning brush rests against the bottom of the pool body when it rotates. A bottom cleaning motor that drives the bottom cleaning brush is also provided inside the pool body.

[0018] A further feature of this invention is that a water temperature regulator is installed inside the pool to control the water temperature.

[0019] By adopting the above technical solution, the water temperature can be continuously adjusted during transportation to maintain the optimal temperature for crayfish to live in, thereby improving the survival rate of crayfish.

[0020] The beneficial effects of this utility model are:

[0021] 1. By using a filter plate to separate crayfish from their excrement, the crayfish are prevented from living in dirty water during transportation, thus reducing their mortality rate and maintaining good meat quality.

[0022] 2. The adjustable filter plate allows operators to unload directly from above the transport vehicle, saving unloading time and preventing some crayfish from dying during the unloading process.

[0023] 3. The impurity scraping device and the round-shaped scraping device prevent the excrement produced by crayfish during transportation from accumulating at the bottom of the tank for a long time, thus avoiding the excrement from sticking to the outer shell of each device and facilitating the cleaning process after transportation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the overall structure of a crayfish temporary holding water treatment pond provided in this embodiment of the utility model;

[0026] Figure 2 This is a partial sectional view of a crayfish temporary holding water treatment tank according to the present invention;

[0027] Figure 3 This is a schematic diagram of the cylinder part of this utility model;

[0028] Figure 4 This is an exploded schematic diagram of the cylinder part of this utility model;

[0029] Figure 5 This is a front sectional view of the cylinder part of this utility model.

[0030] In the diagram, 1. Pool body; 11. Top cover; 2. Filter plate; 21. Baffle plate; 3. Filter plate lifting device; 31. Cylinder; 32. Anti-fall plate; 33. Frustum scraping device; 331. Rotating bottom ring; 332. Driven gear; 333. Main gear; 334. Scraping motor; 335. Frustum cleaning brush; 4. Anti-clogging aeration device; 41. Aeration pump; 411. Aeration pump outlet; 42. Air hole baffle; 43. Blocking plate; 5. Impurity scraping device; 51. Pool bottom cleaning brush; 52. Pool bottom cleaning motor; 61. Water temperature regulator. Detailed Implementation

[0031] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] This utility model embodiment provides a crayfish temporary holding water treatment pond, including a pond body 1. The top of the pond body 1 is provided with an openable and closable top cover 11. One side wall of the pond body 1 is rotatably connected to the bottom via a hinge. A filter plate 2 is provided inside the pond body 1 and fits against the side wall. A vertically upward baffle plate 21 is provided at the edge of the filter plate 2. Several sets of filter plate lifting devices 3 are provided between the filter plate 2 and the bottom of the pond body 1. The filter plate lifting devices 3 can lift the filter plate 2 until the upper surface is flush with the top of the side wall of the pond body 1. An anti-clogging oxygenation device 4 is provided below the filter plate 2. An impurity scraping device 5 is provided at the bottom of the pond body 1.

[0033] Currently, crayfish transportation is done using box trucks. Installing the crayfish temporary holding water treatment tank provided by this invention onto a box truck can improve the survival rate of crayfish. To prevent crayfish from mixing with excrement during long-distance transportation, which would ultimately lead to deterioration of meat quality, the crayfish need to be lifted to a certain distance from the bottom of the water before transportation. The tank body 1 is a rectangular space, including four side panels and an openable top cover 11. The side panels installed at the rear of the truck are connected to the bottom plate of the tank body 1 by hinges and are fixed in the closed state using conventional methods such as pins. The edges of the side panels have waterproof seams to prevent water leakage during transportation. When it is necessary to quickly empty the water in the tank body 1 or thoroughly clean the inside of the tank body 1, the hinged side panels can be lowered. A liftable filter plate 2 is installed inside the tank body 1. The filter plate 2 is positioned at its lowest position... When at a low position, there is a certain distance between the filter plate 2 and the bottom plate of the pool body 1. A barrier plate 21 is set at the edge of the filter plate 2. During the transportation of crayfish, they are piled up on top of the filter plate 2. The filter plate 2 has fine holes, which allow crayfish excrement to pass through but prevent crayfish from passing through, thus separating the crayfish from the waste. When unloading, the top cover 11 is opened, and the filter plate lifting device 3 is activated to raise the barrier plate 21 until its upper surface is flush with the top of the side wall of the pool body 1. At this time, the crayfish can be unloaded quickly from above, saving transportation time and reducing mortality. The anti-clogging oxygenation device 4 under the filter plate 2 can continuously oxygenate the water during transportation, preventing large-scale mortality of crayfish due to long-distance transportation. The impurity scraping device 5 can slowly scrape the bottom of the pool, preventing crayfish excrement from sticking to the bottom of the pool due to long-term inactivity, which would make it difficult to clean later.

[0034] Furthermore, the baffle plate 21 corresponding to the side wall of the filter plate 2 that is hinged to the pool body 1 can be hinged to the filter plate 2. When unloading, the hinged baffle plate 21 can be lowered to facilitate unloading by the operator from the parking space.

[0035] The filter plate lifting device 3 includes a cylinder 31 fixed to the bottom of the pool body 1. The upper end of the cylinder 31 is fixedly connected to the bottom of the baffle plate 21. A frustum-shaped hollow anti-fall plate 32 is provided outside the cylinder barrel of the cylinder 31. A frustum-shaped scraping device 33 is provided above the anti-fall plate 32.

[0036] The baffle plate 21 is driven to rise and fall by the cylinder 31. At the same time, since the anti-clogging oxygenation device 4 is also installed on the outside of the cylinder 31, if the crayfish excrement falls directly down onto the anti-clogging oxygenation device 4 and the outer wall of the cylinder 31, it is easy to cause blockage of the air holes and reduce the life of the cylinder. Therefore, a frustum-shaped anti-fall plate 32 needs to be installed outside the cylinder barrel of the cylinder 31 to shield the equipment below to a certain extent and reduce the possibility of being stuck by the excrement. The cylinder 31 is equipped with conventional waterproofing measures such as telescopic protective covers that are easy for those skilled in the art to think of, which can prevent external moisture from entering the cylinder telescopic part and causing damage. Since the excrement will still fall above the anti-fall plate 32, it will also stick if it is not cleaned. Therefore, a frustum-shaped scraping device 33 is also installed above the anti-fall plate 32.

[0037] Furthermore, the truncated cone scraping device 33 includes a rotating bottom ring 331 rotatably connected to the outer wall of the cylinder 31. The rotating bottom ring 331 can rotate around the cylinder 31. A driven tooth 332 is provided on the inner wall of the rotating bottom ring 331. A main gear 333 that cooperates with the driven tooth 332 is provided in the anti-fall plate 32. A scraping motor 334 that drives the main gear 333 to rotate is also provided. A truncated cone cleaning brush 335 is detachably connected to the outside of the rotating bottom ring 331. The truncated cone cleaning brush 335 contacts the upper surface of the anti-fall plate 32.

[0038] During operation, the scraping motor 334 drives the main gear 333 to rotate, which in turn drives the rotating bottom ring 331, which is in sync with the main gear 333, to rotate around the central axis. The cleaning brush 335 is installed on the rotating bottom ring 331 by means of clips or bolts that are easily conceived by those skilled in the art. When the rotating bottom ring 331 rotates, the cleaning brush 335 keeps in contact with the upper surface of the anti-fall plate 32 and slides to clean the sticky crayfish excrement. The scraping motor 334 is fixed inside the hollow frustum-shaped anti-fall plate 32 to avoid damage from contact with water. The contact surfaces of the main gear 333 and the rotating bottom ring 331 are also equipped with conventional waterproofing solutions such as waterproof rubber strips to prevent corrosion from contact with external water.

[0039] In practice, the anti-blocking oxygenation device 4 includes an oxygenation pump 41 fixed at the bottom of the pool body 1, and several oxygenation pump outlet holes 411 are arranged radially along the cylinder 31 below the truncated cone scraper 33.

[0040] The oxygen pump 41 can continuously produce oxygen to increase the oxygen concentration in the water and prevent crayfish from dying. The air outlet 411 of the oxygen pump is located below the circular scraper device 33, which can also prevent excrement from sticking together and causing the hole to become blocked.

[0041] During implementation, an air outlet baffle 42 that can move up and down is provided outside the air outlet 411 of the oxygen pump, and a blocking plate 43 is provided above the air outlet baffle 42.

[0042] When the aerator pump outlet 411 sprays air outward, the baffle 42, which originally covered the outlet, will move upward under the action of air pressure until the aerator pump outlet 411 is exposed, so that the sprayed oxygen can fully contact the water to achieve oxygenation. When oxygenation stops, the sprayed air pressure is not enough to support the baffle 42, and the baffle will fall and block the aerator pump outlet 411 until the upper blocking plate 43 stops its descent.

[0043] Furthermore, the impurity scraping device 5 includes a bottom cleaning brush 51 that rotates along the axis of the cylinder 31. The bottom cleaning brush 51 is attached to the bottom of the pool body 1 when it rotates. A bottom cleaning motor 52 that drives the bottom cleaning brush 51 is also fixed inside the pool body 1. The bottom cleaning brush 51 will continuously and slowly lift up the excrement during the rotation process, thus avoiding sticking.

[0044] Furthermore, a water temperature regulator 61 is installed inside the pool body 1 to regulate the water temperature; during long-distance transportation, the water temperature can be controlled within a suitable range by the water temperature regulator 61 to further reduce the mortality rate of crayfish. The water temperature regulator is a conventional device that is easily known to those skilled in the art, and its specific internal structure is not within the scope of protection of this utility model.

[0045] Working principle

[0046] S1. When loading, open the top cover 11, start the filter plate lifting device 3 to raise the filter plate 2 until the upper surface is flush with the top of the side wall of the tank 1, then pour crayfish into the tank 1 above the filter plate 2. After completion, the filter plate lifting device 3 retracts to return the filter plate 2 to its original position, close the top cover 11 and open the anti-clogging oxygenation device 4, the impurity scraping device 5 and the water temperature regulator 61. Loading is complete.

[0047] S2. When unloading, first turn off the anti-clogging oxygenation device 4, the impurity scraping device 5 and the water temperature regulator 61, and start the filter plate lifting device 3 to raise the filter plate 2 to be level with the top of the side wall of the tank body 1. The unloading personnel can unload from above the truck. After all the unloading is done, restore each device to its original state.

[0048] S. During cleaning, open the hinged side wall of the pool body 1 and the hinged barrier plate 21 on the filter plate 2, and the cleaning personnel can enter the interior of the pool body 1 for cleaning. Since the impurity scraping device 5 has been slowly scraping the bottom during transportation, the crayfish excrement will not stick very tightly to the bottom, which speeds up the cleaning speed of the operator.

[0049] The above describes the basic principles, main features, and advantages of this utility model. The standard parts used in this utility model can all be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, which will not be described in detail here.

[0050] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A crayfish temporary holding water treatment pond, comprising a pond body (1), wherein the top of the pond body (1) is provided with an openable and closable top cover (11), and one side wall of the pond body (1) is rotatably connected to the bottom via a hinge, characterized in that: The pool body (1) is provided with a filter plate (2) that fits against the side wall. A vertically upward baffle plate (21) is provided at the edge of the filter plate (2). Several sets of filter plate lifting devices (3) are provided between the filter plate (2) and the bottom of the pool body (1). The filter plate lifting device (3) can lift the filter plate (2) until its upper surface is flush with the top of the side wall of the pool body (1). An anti-clogging oxygenation device (4) is provided below the filter plate (2). An impurity scraping device (5) is provided at the bottom of the pool body (1).

2. The crayfish temporary holding water treatment pond according to claim 1, characterized in that: The barrier plate (21) corresponding to the side wall of the filter plate (2) that is hinged to the pool body (1) can be hinged to the filter plate (2).

3. The crayfish temporary holding water treatment pond according to claim 1, characterized in that: The filter plate lifting device (3) includes a cylinder (31) fixed at the bottom of the pool body (1). The upper end of the cylinder (31) is fixedly connected to the bottom of the barrier plate (21). A frustum-shaped hollow anti-fall plate (32) is provided outside the cylinder of the cylinder (31). A frustum-shaped scraping device (33) is provided above the anti-fall plate (32).

4. The crayfish temporary holding water treatment pond according to claim 3, characterized in that: The truncated cone scraping device (33) includes a rotating bottom ring (331) rotatably connected to the outer wall of the cylinder (31). The rotating bottom ring (331) can rotate around the cylinder (31). A driven tooth (332) is provided on the inner wall of the rotating bottom ring (331). A main gear (333) that cooperates with the driven tooth (332) is provided in the anti-fall plate (32). A scraping motor (334) that drives the main gear (333) to rotate is provided. A truncated cone cleaning brush (335) is detachably connected to the outside of the rotating bottom ring (331). The truncated cone cleaning brush (335) contacts the upper surface of the anti-fall plate (32).

5. The crayfish temporary holding water treatment pond according to claim 4, characterized in that: The anti-clogging oxygenation device (4) includes an oxygenation pump (41) installed at the bottom of the pool body (1), and several oxygenation pump outlet holes (411) are arranged radially along the cylinder (31) below the truncated cone scraper (33).

6. The crayfish temporary holding water treatment pond according to claim 5, characterized in that: An air outlet baffle (42) that can move up and down is provided outside the air outlet (411) of the oxygen pump, and a blocking plate (43) is provided above the air outlet baffle (42).

7. A crayfish temporary holding water treatment pond according to claim 6, characterized in that: The impurity scraping device (5) includes a bottom cleaning brush (51) that rotates along the axis of the cylinder (31). The bottom cleaning brush (51) is attached to the bottom of the pool body (1) when it rotates. The pool body (1) is also equipped with a bottom cleaning motor (52) that drives the bottom cleaning brush (51) to move.

8. A crayfish temporary holding water treatment pond according to claim 7, characterized in that: The pool body (1) is equipped with a water temperature regulator (61) for regulating water temperature.

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