Modular anti-escape device for rice-shrimp co-culture

Abstract

The utility model relates to rice -shrimp culture technical field especially discloses a kind of modularization escape-preventing device for rice -shrimp co-production, to solve the problem of poor escape-preventing effect of existing device, low installation efficiency, insufficient wind resistance and biting resistance performance.The device includes escape-preventing plate, and the bottom of plate body is provided with plug nail, and the upper end is provided with inverted U-shaped top inner hem;Wind-resistant micro-perforation with 5°inclination angle is opened in the upper portion of plate face;T-shaped convex rod is arranged on the left side of plate body, and the right side is provided with matched T-shaped groove one and T-shaped groove two;Connection assembly is arranged in the slot of both ends.By T-shaped structure, quick splicing and turning adaptation are realized, the extension rod enhances soil fixation, and multiple structures cooperatively improve the escape-preventing effect, while having wind resistance, biting resistance, efficient installation, and adaptation to multiple terrains, etc.Features, suitable for rice -shrimp co-production field, can significantly reduce breeding loss, and has higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of rice-shrimp farming technology, and in particular to a modular anti-escape device for rice-shrimp co-cultivation. Background Technology

[0002] In rice-shrimp co-culture, escape prevention devices are crucial for ensuring the profitability of the farming industry. However, similar products currently on the market have many drawbacks, causing considerable trouble for farmers:

[0003] First, the escape prevention effect is not good. Traditional devices mostly use straight plates or simple bending structures, and there is no effective anti-climbing design at the top. Crayfish can easily climb over the top of the plate. In addition, the gaps at the joints of the plates are large, and escape channels are often formed due to poor sealing, resulting in aquaculture losses.

[0004] Secondly, the installation efficiency is low. Existing products mostly rely on bolts or straps for connection, and the installation of a single piece takes a long time. A two-person team can only install less than 200 meters per day on average. Especially in large rice fields, the labor cost increases significantly.

[0005] Third, it has poor wind resistance and stability. The boards are mostly solid structures, which have high wind resistance and are prone to collapsing in strong winds; the bottom fixation is mostly simple stakes, which do not fit firmly with the soil and are prone to tilting during the rainy season or when the field ridges become loose.

[0006] Fourth, it has poor weather resistance and bite resistance. Ordinary plastic sheets have poor UV resistance and are prone to brittleness after long-term exposure to sunlight; in addition, the material is not hard enough, and it is easy to be damaged after being bitten by crayfish claws. The average service life is only 1-2 years, and farmers need to replace them frequently, resulting in high maintenance costs.

[0007] Fifth, the adaptability to terrain is limited. Existing devices are difficult to assemble for complex terrains such as corners in paddy fields and terraced fields in hills, and corners can easily create blind spots for escape prevention, which cannot meet the needs of diverse aquaculture scenarios.

[0008] Based on the aforementioned market pain points, and combined with the actual needs of farmers, we developed this modular escape prevention device. It aims to solve the above problems through structural innovation and provide a more reliable and efficient escape prevention solution for rice-shrimp co-cultivation. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides a modular anti-escape device for rice-shrimp co-cultivation, which solves the technical problems of poor anti-escape effect, low installation efficiency, insufficient wind resistance and stability, weak weather resistance and bite resistance, and limited terrain adaptability of existing anti-escape devices for rice-shrimp co-cultivation.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A modular anti-escape device for rice-shrimp co-cultivation includes an anti-escape plate with two pins fixed to the bottom and an inverted U-shaped inwardly rolled edge fixed to the upper edge of the anti-escape plate facing the inner side of the paddy field.

[0012] The upper part of the escape-proof plate has evenly distributed wind-resistant micro-perforations.

[0013] Both ends of the escape-proof plate have slots, and two pins pass through each slot.

[0014] A T-shaped protruding rod is fixedly connected to the left side of the escape-proof plate, and a T-shaped groove one and a T-shaped groove two are opened on the right side of the escape-proof plate;

[0015] Both ends of the top inward rolled edge are beveled;

[0016] The slot is equipped with a connecting component, which includes a connector and two inserts. A connecting block is fixedly connected to the middle part of the connector, and a splicing piece is fixedly connected to the connecting block. The splicing piece is also inverted U-shaped and its two ends are tilted.

[0017] Preferred: The wind-resistant micro-perforations are inclined at a 5° angle to the inside of the paddy field, forming a funnel-shaped opening that is wider on the outside and narrower on the inside, and the inside is coated with a nano-hydrophobic coating.

[0018] Preferably, each plug has four ring-shaped connecting pieces fixed at its bottom, and each connecting piece is rotatably connected to an extension rod. The bottom of each extension rod is pointed and the inward side is inclined.

[0019] When the four extension rods are perpendicular, the outer walls are joined together to form a ring with the same diameter as the insertion rod.

[0020] Preferred: The top inward rolled edge and the inner side of the splicing piece are coated with Teflon.

[0021] Preferably, the four extension rods at the bottom of the same insertion rod have rounded corners on the inner side of their upper ends.

[0022] Preferably, T-groove one and T-groove two are the same and are both adapted to T-shaped protrusions.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] Highly effective at preventing escape: The inverted U-shaped rolled edge at the top, combined with the Teflon coating on the inside, significantly reduces the success rate of crayfish climbing; the inclined design of the splicing piece and the rolled edge at the top ensures that there are no gaps at the splicing point, blocking the escape path.

[0025] Excellent wind resistance: The wind-resistant micro-perforations on the upper part of the escape-proof plate effectively reduce wind resistance and improve the stability of the device.

[0026] Wear-resistant and long lifespan: The bottom of the board is made of "HDPE substrate + 0.5mm glass fiber reinforced PP composite layer", with a Shore hardness of D70. It can withstand continuous biting by crayfish without damage and has a service life of 3-5 years, which is significantly longer than ordinary plastic boards.

[0027] Rapid modular assembly: The T-shaped protruding rod and double groove (T-shaped groove one and two) snap-fit ​​design enable tool-free rapid splicing, with an installation efficiency of up to 50 meters / hour, which is a significant improvement over traditional bolt connections; the bottom extension rod of the connecting component (which extends radially after unfolding) enhances the engagement with the soil and improves overall stability.

[0028] Highly adaptable to different terrains: The T-shaped groove allows for 90° turning and splicing. The inward rolling of the top edge and the tilting treatment of the splicing pieces are suitable for corner sealing. It is applicable to different terrains such as plains, rice paddies, and hilly terraces, without loosening or lodging.

[0029] Easy maintenance: The wind-resistant micro-perforated inner surface is coated with a nano-hydrophobic coating to reduce algae adhesion, and can be easily cleaned with a high-pressure water gun, reducing maintenance costs. Attached Figure Description

[0030] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0031] Figure 1 This is an overall structural diagram of the present invention;

[0032] Figure 2 This is a schematic diagram of the connection at the corner of this utility model;

[0033] Figure 3 This is a schematic diagram of the extension rod when it is deployed in this utility model;

[0034] Figure 4 This is a structural diagram of the insertion rod in this utility model;

[0035] Figure 5 This is a structural diagram of the extension rod in this utility model when it retracts;

[0036] Figure 6 This is a structural diagram of the top inwardly rolled edge in this utility model;

[0037] Figure 7 This is a schematic diagram showing the positions of T-shaped groove one and T-shaped groove two in this utility model.

[0038] Legend: 1. Escape prevention plate; 2. Top inward rolled edge; 3. Connecting block; 4. T-shaped protruding rod; 5. Insert pin; 6. Wind-resistant micro-perforation; 7. Slot; 8. T-shaped groove one; 9. T-shaped groove two; 10. Connector; 11. Insert rod; 12. Splicing piece; 13. Extension rod; 14. Connecting piece. Detailed Implementation

[0039] This application provides a modular anti-escape device for rice-shrimp co-cultivation, which effectively solves the technical problems of existing anti-escape devices for rice-shrimp co-cultivation, such as poor anti-escape effect, low installation efficiency, insufficient wind resistance and stability, weak weather resistance and bite resistance, and limited terrain adaptability.

[0040] Example

[0041] like Figures 1-7 As shown, the overall concept of the technical solution in this utility model is as follows:

[0042] This utility model mainly consists of an escape-proof plate 1, connecting components, a fixing structure, and escape-proof reinforcement components. The components work together to achieve the functions of escape prevention, wind resistance, and rapid assembly. The specific structure is as follows:

[0043] Escape prevention plate 1:

[0044] Materials and Zoning: The board is made of high-density polyethylene (HDPE). The upper part (300mm from the top down) is made of 2% UV-resistant masterbatch and 1% antioxidant, and the surface is treated with matte sanding. The lower part (300mm from the bottom up) is made of "HDPE substrate + 0.5mm glass fiber reinforced PP composite layer", with a Shore hardness of D70, which improves the resistance to crayfish claw bites.

[0045] Dimensions: Each board is 1000mm long, 600mm high, and 10mm thick.

[0046] Top inward curl 2:

[0047] Located at the upper edge of the escape prevention plate 1 facing the inner side of the paddy field, it is inverted U-shaped (radius 10mm) and 50mm high, with both ends tilted at 45° (for easy turning and splicing). The inner side is sprayed with Teflon coating (friction coefficient 0.04) to block the crayfish from climbing over.

[0048] Wind-resistant micro-perforation 6:

[0049] The holes are located in the upper middle part of the escape prevention plate 1 (300mm from the bottom to 50mm from the top), with a diameter of 3mm (±0.2mm). They are arranged in a staggered manner, with 80-100 holes per plate and a total opening rate of 12%-15%.

[0050] The inner side of the hole (facing the paddy field) is inclined at a 5° angle, forming a "wide on the outside and narrow on the inside" funnel-shaped structure (the effective passage width on the inside is ≤2.5mm). The inner side is sprayed with a nano hydrophobic coating to prevent algae from attaching and shrimp from climbing.

[0051] Pin 5 and slot 7:

[0052] The bottom of the escape prevention plate 1 is fixed with two cylindrical nails 5, which are made of glass fiber reinforced PP and have barbs on the surface to improve the pull-out resistance after being inserted into the soil.

[0053] The escape-proof plate 1 has slots 7 at both ends in the vertical direction, through which two pins 5 pass, for inserting the rods 11 of the connecting components.

[0054] T-type connection structure:

[0055] Escape prevention plate 1, left side integrally formed T-shaped protrusion 4.

[0056] T-shaped groove 8 and T-shaped groove 9 are provided on the right side of the escape prevention plate 1. The two grooves have the same structure and are adapted to the T-shaped protrusion 4.

[0057] Connection components:

[0058] Includes connector 10, two insert rods 11, connector block 3 and splicing piece 12;

[0059] The bottom of the insertion rod 11 is fixed with four ring-shaped connecting pieces 14. Each connecting piece 14 is connected to the extension rod 13 through a pivot. The bottom of the extension rod 13 is pointed, and a 30° inclined surface is provided on the inward side. When not unfolded, the outer wall is assembled into a ring with the same diameter as the insertion rod 11 (when unfolded, it is radial, which enhances the interlocking with the soil).

[0060] The splicing piece 12 is an inverted U-shape (matching the top inward rolled edge 2), with both ends tilted at 45°. The inner side is coated with Teflon to fill the gap at the top of the adjacent escape prevention plate.

[0061] Assembly and usage instructions:

[0062] Horizontal straight-line splicing (suitable for leveling field ridges)

[0063] Take the first escape prevention board 1, align the bottom nail 5 with the edge of the field ridge, and manually press it to make the nail 5 sink into the soil (for hard soil, you can first water it to soften it).

[0064] Take the second escape prevention plate 1, align its left T-shaped protrusion 4 with the T-shaped groove 8 of the first plate, and gently push to engage.

[0065] Insert the connecting rod 11 into the slot 7 of the two plates until the connector 10 fits against the upper surface of the escape prevention plate 1. At this time, the splicing piece 12 just covers the gap between the top inner rolled edge 2 of the two plates. The extension rod 13 at the bottom of the insert 11 automatically unfolds (radially) due to soil resistance, further fixing the overall structure.

[0066] Corner splicing (suitable for field ridge corners):

[0067] When encountering a corner, take two escape prevention plates 1, insert the T-shaped protrusion 4 of one plate into the T-shaped groove 2 9 of the other plate (the angle between groove 2 and groove 1 is 90°), and press to lock them in place.

[0068] Since the top inward rolled edge 2 and both ends of the splicing piece 12 are inclined, no additional filling is needed at the corner to form a closed anti-escape structure. After the insertion rod 11 is inserted into the slot 7, the extension rod 13 unfolds to enhance stability.

[0069] If the wind-resistant micro-perforated part 6 becomes clogged, it can be flushed with a high-pressure water gun (the nano-hydrophobic coating can reduce the frequency of cleaning).

[0070] Example 1: Installation of horizontal fencing in plain paddy fields:

[0071] A cooperative installed this device in a 20-mu rectangular paddy field (200m long and 67m wide) using the following steps:

[0072] Lay out lines along the edge of the field ridges and mark the installation locations;

[0073] Two people work together to install the first escape prevention plate 1, inserting the pins to a depth of 5 to 300 mm;

[0074] The subsequent plates are spliced ​​together by T-shaped protrusion 4 and T-shaped groove 8 in sequence, and a connecting component is inserted every 5 plates.

[0075] After the overall installation is completed (total length approximately 534m), check the sealing of the top inner rolled edge 2 and the unfolded state of the insertion rod 11.

[0076] The results showed that the installation efficiency reached 50m / hour, which is a significant improvement over traditional cement board fences, and there was no tipping over.

[0077] Example 2: Installation of fencing at the corner of terraced fields in hilly areas:

[0078] A cooperative installed this device on 10 mu (approximately 1.65 acres) of hilly terraced fields (including 6 90° bends), focusing on the turning sections:

[0079] For the terraced slope section, a flexible anti-escape plate 1 is used (the angle is adjusted by T-shaped connection), and a T-shaped groove 2 9 is used at the corner to achieve 90° splicing;

[0080] The insertion rod 11 of the connecting component is inserted 400mm into the soil, and the extension rod 13 is engaged with the soil on the terrace slope after it is extended, which enhances the resistance to landslides.

[0081] The top inward rolled edge 2 fits tightly against the inclined end of the splicing piece 12 without any gaps.

[0082] The results showed that the device is suitable for the complex terrain of terraced fields, and there was no loosening or collapse after installation, which improved the effect compared with traditional bamboo fences.

[0083] This invention achieves rapid assembly through modular design, and combines multiple escape-proof structures and wind-resistant optimization. It is suitable for rice-shrimp co-cultivation fields with different terrains, significantly reduces aquaculture losses, and has low cost, making it highly practical.

[0084] Working principle:

[0085] The upper part of the escape-proof board 1 is made of high-density polyethylene (HDPE) with 2% UV-resistant masterbatch and 1% antioxidant. The surface is matte and frosted to prevent slipping (manual handling) and shrimp climbing. The lower part of the escape-proof board 1 uses HDPE substrate + 0.5mm glass fiber reinforced PP composite layer to resist claw bites.

[0086] When in use, the two escape prevention plates 1 are spliced ​​horizontally as follows: Figure 1 As shown, when the two escape prevention plates 1 are joined at a turn, as... Figure 2 As shown;

[0087] When splicing horizontally, the T-shaped protrusions 4 on adjacent escape-proof plates 1 engage with the T-shaped grooves 8, joining adjacent escape-proof plates 1 together. After inserting one escape-proof plate 1, the next escape-proof plate 1 is connected using the T-shaped protrusions 4 and T-shaped grooves 8. The lower end of the escape-proof plate 1 is inserted into the paddy field, with the nails 5 inserted deeper into the paddy field. Two inserts 11 are inserted into the slots 7 on adjacent escape-proof plates 1 until the connector 10 fits against the upper surface of the escape-proof plate 1. At this point, the splicing piece 12 fills the gap between two adjacent top inward-curved edges 2. Figure 1 As shown in the position of the splicing piece 12, after multiple escape prevention plates 1 are spliced ​​together, the connection between adjacent escape prevention plates 1 is more stable, and the top inward rolled edge 2 has no gaps, ensuring the escape prevention effect.

[0088] After the insertion rod 11 is inserted into the slot 7, it extends from the bottom of the pin 5. When the four extension rods 13 at the bottom of the insertion rod 11 come into contact with the resistance of the ground, they spread outward through the slope and tip of the bottom of the extension rods 13, and the unfolded state is as follows. Figure 3 As shown, the extended rod 13 further enhances the stability of the escape-proof plate 1 in the soil after it is deployed.

[0089] Where escape barriers 1 need to turn, two adjacent escape barriers 1, as shown... Figure 2As shown in the diagram, the T-shaped protrusion 4 is engaged with the T-shaped groove 9. At this time, the top inward rolled edges 2 on the two adjacent escape prevention plates 1 are joined together by the inclined ends. The escape prevention effect can be guaranteed without splicing piece 12 at the turning point.

[0090] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A modular anti-escape device for rice-shrimp co-cultivation, characterized in that, Includes an escape prevention plate (1), with two pins (5) fixed at the bottom of the escape prevention plate (1), and an inverted U-shaped inward rolled edge (2) fixed at the upper edge of the escape prevention plate (1) facing the inner side of the paddy field. The escape prevention board (1) has uniformly distributed wind-resistant micro-perforations (6) on the upper part of the board surface; Both ends of the escape-proof plate (1) are provided with slots (7), and two pins (5) pass through the two slots (7) respectively; The left side of the escape plate (1) is fixedly connected with a T-shaped protrusion (4), and the right side of the escape plate (1) is provided with a T-shaped groove one (8) and a T-shaped groove two (9). Both ends of the top inward rolled edge (2) are slanted; The slot (7) is provided with a connecting component, which includes a connector (10) and two inserts (11). A connecting block (3) is fixedly connected to the middle part of the connector (10), and a splicing piece (12) is fixedly connected to the connecting block (3). The splicing piece (12) is also inverted U-shaped and its two ends are tilted.

2. A modular escape-proof device for rice-shrimp co-culture as claimed in claim 1, wherein, The wind-resistant micro-perforation (6) is inclined at a 5° angle to the inside of the paddy field, forming a funnel mouth that is wider on the outside and narrower on the inside, and the inner side is sprayed with a nano hydrophobic coating.

3. A modular escape-proof device for rice-shrimp co-culture as claimed in claim 1, wherein, Each insert (11) has four ring-shaped connecting pieces (14) fixed at its bottom. Each connecting piece (14) is rotatably connected to an extension rod (13). The bottom of each extension rod (13) is pointed and the inward side is inclined. When the four extension rods (13) are perpendicular, the outer walls are joined together to form a ring with the same diameter as the insertion rod (11).

4. A modular escape-proof device for rice-shrimp co-culture as claimed in claim 1, wherein, The inner edge of the top rolled edge (2) and the inner side of the splicing piece (12) are coated with Teflon.

5. A modular anti-escape device for rice-shrimp co-cultivation as described in claim 1, characterized in that, The four extension rods (13) at the bottom of the same insertion rod (11) all have rounded corners on the inner side of the upper end.

6. A modular anti-escape device for rice-shrimp co-cultivation as described in claim 1, characterized in that, T-groove one (8) and T-groove two (9) are the same and are both adapted to T-shaped protrusion (4).

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