A crab and sea bass mixed culture device
By introducing a two-way water exchange system and filter cartridge structure into the crab and bass polyculture device, the problems of low water resource utilization and water quality deterioration were solved, achieving efficient utilization of water resources and sharing of beneficial substances, and reducing aquaculture costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG XUANNIO AGRICULTURAL DEVELOPMENT CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-19
AI Technical Summary
In existing crab and bass co-culture systems, water resource utilization is low, water quality in crab ponds is prone to deterioration, and beneficial substances cannot be utilized in bass ponds, increasing the breeding cost of bass ponds.
A crab and bass co-culture device was designed, which includes a water pumping device. The outer and inner boxes are coaxially arranged. The device uses a motor to drive a synchronous pulley and a synchronous belt to achieve bidirectional water exchange between the crab pond and the bass pond. The water is filtered and purified through structures such as filter elements and flanges.
It improves water resource utilization, avoids water quality deterioration in a single pond, promotes the sharing of beneficial substances between the two ponds, and reduces aquaculture costs.
Smart Images
Figure CN224368783U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture technology, and in particular to a device for co-culturing crabs and bass. Background Technology
[0002] Crabs, also known as river crabs, are freshwater crustaceans. In aquaculture, due to the hatching of fish eggs and the introduction of fish fry during water changes, many small miscellaneous fish will exist in the pond, so they need to be raised together with bass.
[0003] Therefore, a prior art crab and bass polyculture device, disclosed in CN210352741U, includes a feed hopper, motor, water tank, water pump, drain pipe, rotating column, and stirring blades. This design allows water from the bass pond to the crab pond, solving the problem of cumbersome operation in existing crab and bass polyculture devices. Because a coupling is installed on the lower side of the motor, connecting the motor to the rotating column, the coupling facilitates the motor's operation. Furthermore, a filter screen is installed on the lower side inside the water tank to drain water. A butterfly valve is installed on the upper side of the water pipe. This design prevents other debris in the bass pond from entering the crab pond through the water storage tank. Because there is an installation plate on the upper side of the crab pond, the water storage tank is installed on the upper side of the installation plate. The installation plate has water inlet and outlet holes. The water inlet pipe matches the water inlet hole, and the outlet pipe matches the outlet hole. This design facilitates the installation of the water storage tank and the operation of the water inlet and outlet pipes. Because there is a filter plate at the bottom of the crab pond, and a layer of silt is set on the upper side of the filter plate, and aquatic plants are planted in the silt layer, this design provides a favorable environment for crab growth.
[0004] However, the device achieves directional transportation of water from the bass pond to the crab pond through a convenient water diversion mechanism, but it does not have a reverse water exchange channel (i.e., a mechanism for introducing water from the crab pond into the bass pond). This will result in a lower water resource utilization rate. For example, the water quality in the crab pond is prone to deterioration, and the beneficial substances in it cannot be utilized by the bass pond. The bass pond needs to be fed separately, which increases costs. Utility Model Content
[0005] The purpose of this invention is to solve the problems existing in the prior art and to propose a device for co-culturing crabs and bass.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a crab and bass co-culture device, including a water pumping device, an outer box and an inner box coaxially arranged with a clearance fit with the outer box, two limiting grooves are opened inside the inner box, a water pump is fixedly connected inside the inner box, a rotary joint is connected to both ends of the water pump, and a circular box slidably connected to the limiting groove is connected to the other end of the rotary joint. A water inlet is opened on the arc surface of the circular box, and the two water inlets are located on opposite sides of the two circular boxes respectively. Two oppositely arranged water pipes are connected to both sides inside the limiting groove.
[0007] Preferably, a connecting shaft is rotatably connected to the outer side of the outer casing and in the gap between the inner and outer casings, and synchronous pulleys are fixedly connected to the connecting shaft near both ends.
[0008] Preferably, synchronous pulleys are also fixedly connected to opposite sides of the two circular boxes, and the two synchronous pulleys located on the side of the water pump are driven by a synchronous belt.
[0009] Preferably, a motor is fixedly connected inside the inner box, and the motor spindle is fixed to one of the synchronous pulleys.
[0010] Preferably, the water pipes are connected through the outer casing, and two of the water pipes near the water pump inlet are provided with flanges at their other ends. The other end of the flanges is connected to an extension pipe, and a filter element is provided inside the extension pipe.
[0011] Preferably, an inner baffle is fixedly connected inside the extension tube, and the bottom of the filter element overlaps with the inner baffle.
[0012] Preferably, protective plugs are provided at both ends of the inner box.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, the motor drives the synchronous pulley and synchronous belt transmission to drive the circular box to slide in the limiting groove, so that the water inlet on the circular box can be connected to the water pipes in different directions. With the power of the water pump, the bidirectional flow of water between the two ponds is realized, thus constructing a bidirectional water exchange system between the crab pond and the bass pond. This improves the water resource utilization rate, avoids the deterioration of water quality in a single pond, and promotes the sharing of beneficial substances between the two ponds, thereby reducing the breeding cost.
[0015] 2. In this utility model, by setting an extension pipe, flange, filter element and inner baffle, the filtration and purification of the water entering and leaving the device is realized. The flange and inner baffle work together to support and fix the filter element, prevent the filter element from shifting under the impact of water flow, and ensure stable filtration effect. Attached Figure Description
[0016] Figure 1 This utility model provides a three-dimensional structural diagram of a crab and bass co-culture device;
[0017] Figure 2 This is a side sectional three-dimensional structural diagram of the inner box in this utility model;
[0018] Figure 3 This is a three-dimensional structural diagram of the water pump in this utility model;
[0019] Figure 4 This is a side view of the three-dimensional structure of the water pump in this utility model;
[0020] Figure 5 This is a side-sectional three-dimensional structural diagram of the filter element in this utility model.
[0021] Legend: 1. Outer casing; 2. Extension pipe; 3. Connecting shaft; 4. Synchronous pulley; 5. Limiting groove; 6. Circular box; 7. Water pump; 8. Rotary joint; 9. Motor; 10. Protective plug; 11. Water inlet; 12. Inner casing; 13. Flange; 14. Filter element; 15. Water pipe; 16. Inner baffle. Detailed Implementation
[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0024] like Figure 1-5 As shown, a crab and sea bass co-culture device includes a water pumping device, an outer box 1, and an inner box 12 coaxially arranged with clearance fitting with the outer box 1. The inner box 12 has two limiting grooves 5 inside. A water pump 7 is fixedly connected inside the inner box 12. Rotary joints 8 are connected to both ends of the water pump 7. The other end of the rotary joint 8 is connected to a circular box 6 that is slidably connected to the limiting grooves 5. The circular box 6 has a water inlet 11 on its arc surface. The two water inlets 11 are located on opposite sides of the two circular boxes 6. Two oppositely arranged water pipes 15 are connected to both sides inside the limiting grooves 5.
[0025] In this technical solution, the outer box 1 and the inner box 12 are coaxially arranged and have a clearance fit, providing a basic support structure for the device. By setting the limiting groove 5, the sliding of the circular box 6 is guided and limited, ensuring that the circular box 6 moves along a fixed path to accurately connect with the water pipe 15. By setting the water pump 7, the operation of the water pump 7 drives the water to flow. Through the rotary joints 8 at both ends, the circular box 6 can rotate relative to the water pump 7, and the two circular boxes 6 rotate synchronously.
[0026] Furthermore, according to Figure 1As shown, one pool is a bass pool and the other is a crab pool. Two water pipes 15 extend into the bass pool, and two other water pipes 15 extend into the crab pool. Through two water inlets 11 located on opposite sides of the circular box 6, when the two circular boxes 6 move the two water inlets 11 to align with two diagonally opposite water pipes 15, the water pump 7 can cause water from the crab pool to flow into the bass pool. At this time, when the circular box 6 is rotated, causing the water inlets 11 to align with the other two diagonally opposite water pipes 15, the water pump 7 can cause water from the bass pool to flow into the crab pool, thus achieving the function of water exchange.
[0027] like Figure 3 and Figure 4 As shown, a connecting shaft 3 is rotatably connected to the outer side of the outer box 1 and in the gap between the inner box 12 and the outer box 1. A synchronous pulley 4 is fixedly connected to the connecting shaft 3 near both ends. A synchronous pulley 4 is also fixedly connected to the opposite sides of the two circular boxes 6. The two synchronous pulleys 4 located on the side of the water pump 7 are driven by a synchronous belt. A motor 9 is fixedly connected inside the inner box 12. The main shaft of the motor 9 is fixed to one of the synchronous pulleys 4.
[0028] In this technical solution, a connecting shaft 3 is set up to support the synchronous pulley 4 and transmit rotational power. When the motor 9 works, its main shaft is fixed to one of the synchronous pulleys 4, and it drives the synchronous pulley 4 to rotate as a power source. Then, the connecting shaft 3 and the circular box 6 are driven to move through the synchronous belt, so that the circular box 6 slides in the limiting groove 5, realizing the docking or misalignment of the water inlet 11 and the water pipe 15, and controlling the opening and closing and direction of water exchange.
[0029] In addition, the timing pulley 4 and timing belt in this technical solution can be replaced by sprockets and chains.
[0030] like Figure 5 As shown, the water pipe 15 is installed through the outer casing 1. Two of the water pipes 15 near the water inlet of the water pump 7 are provided with flanges 13 at the other end. The other end of the flanges 13 is connected to the extension pipe 2. The extension pipe 2 is provided with a filter element 14. An inner baffle 16 is fixedly connected inside the extension pipe 2. The bottom of the filter element 14 overlaps with the inner baffle 16.
[0031] In this technical solution, flange 13 is set to connect water pipe 15 and extension pipe 2. The flange connection can ensure the sealing and stability of the connection between the two and prevent water leakage. Extension pipe 2 is connected to the other end of flange 13. The filter element 14 inside it can filter the water entering the device and ensure the cleanliness of the water entering the aquaculture area.
[0032] The top of the filter element 14 is pressed by the tenon end of the flange 13, so that its bottom overlaps with the inner baffle 16, thereby fixing it.
[0033] like Figure 1 As shown, protective plugs 10 are provided at both ends of the inner box 12.
[0034] In this technical solution, a protective plug 10 is provided to protect the motor 9, and the motor 9 is preferably a stepper motor.
[0035] Working principle: When the device is running, the motor 9 starts, and its main shaft drives the synchronous pulley 4 fixed to it to rotate. Through synchronous belt transmission, the synchronous pulley 4 on the connecting shaft 3 and the synchronous pulley 4 on the opposite side of the circular box 6 rotate accordingly, so that the two circular boxes 6 slide synchronously in the limiting groove 5. When the water inlet 11 on the circular box 6 is connected to the corresponding water pipe 15, the water pump 7 works. If the water inlet 11 is aligned with two diagonal water pipes 15 connecting the bass pond and the crab pond, the water enters through the extension pipe 2, is filtered by the filter element 14, and then enters the water pump 7 through the flange 13, water pipe 15, water inlet 11, circular box 6, and rotary joint 8, and is then transported to the other pond, realizing unidirectional water flow between the crab pond and the bass pond. If the motor 9 drives the circular box 6 to rotate until the water inlet 11 is aligned with the other two diagonal water pipes 15, the water flows in the opposite direction, completing bidirectional exchange.
[0036] The wiring diagrams of the motor 9 and water pump 7 in this utility model are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the motor 9 and water pump 7 will not be explained in detail.
[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. A crab and grouper mixed culture device comprising a water pumping device, characterized in that: It also includes an outer box (1) and an inner box (12) that is coaxially arranged with the outer box (1) and has a clearance fit. The inner box (12) has two limiting grooves (5) inside. A water pump (7) is fixedly connected inside the inner box (12). The two ends of the water pump (7) are connected to a rotary joint (8). The other end of the rotary joint (8) is connected to a circular box (6) that is slidably connected to the limiting groove (5). The circular box (6) has a water inlet (11) on its arc surface. The two water inlets (11) are located on opposite sides of the two circular boxes (6). The limiting groove (5) has two oppositely arranged water pipes connected to both sides inside.
2. The apparatus for mixed culture of crabs and groupers according to claim 1, characterized in that: A connecting shaft (3) is rotatably connected to the outer side of the outer box (1) and in the gap between the inner box (12) and the outer box (1). A synchronous pulley (4) is fixedly connected to the connecting shaft (3) near both ends.
3. The crab and grouper mixed culture device according to claim 2, characterized in that: Synchronous pulleys (4) are also fixedly connected to the opposite sides of the two circular boxes (6). The two synchronous pulleys (4) located on the side of the water pump (7) are driven by a synchronous belt.
4. The crab and grouper mixed culture device according to claim 3, characterized in that: A motor (9) is fixedly connected inside the inner box (12), and the main shaft of the motor (9) is fixed to one of the synchronous pulleys (4).
5. The crab and bass polyculture device according to claim 1, characterized in that: The water pipe (15) is connected to the outer casing (1) through the water pipe. Two of the water pipes (15) near the water inlet of the water pump (7) are provided with flanges (13) at the other end. The other end of the flanges (13) is connected to an extension pipe (2). A filter element (14) is provided inside the extension pipe (2).
6. The crab and bass polyculture device according to claim 5, characterized in that: An inner baffle (16) is fixedly connected inside the extension tube (2), and the bottom of the filter element (14) overlaps with the inner baffle (16).
7. The crab and bass polyculture device according to claim 1, characterized in that: The inner box (12) is provided with protective plugs (10) at both ends.