River crab breeding net cage

Abstract

The utility model discloses a kind of river crab breeding net cages, it is related to river crab breeding equipment technical field, technical scheme is, including frame main body, the habitat net board being set in frame main body inside, the top plate being set in the top of frame main body and the pull-out storage box being set in the bottom of frame main body;Frame main body includes bottom frame and upper frame, notched is arranged in bottom frame one side, pull-out storage box and notched are slidably connected;Upper frame includes vertical rod and the crossbar being set between the top of vertical rod.The beneficial effects of the utility model are: the design of vertical net board and inclined net board increases three-dimensional habitat area, relieves live crab extrusion problem;Provide refuge space for river crab in ecdysis period, reduce mortality rate;Pull-out storage box is quickly cleaned by sliding design dead crab in bottom sediment;Shorten dead crab retention time, block pathogen transmission.

Description

Technical Field

[0001] This utility model relates to the technical field of crab farming equipment, and in particular to a crab farming net cage. Background Technology

[0002] In recent years, the three-dimensional cage aquaculture model for river crabs has been widely used due to its high density and intensive characteristics, significantly improving aquaculture output and becoming one of the mainstream aquaculture technologies. This model mainly relies on cage structures suspended in the water to achieve relative isolation and control of the aquaculture environment.

[0003] However, with the continuous expansion of high-density aquaculture, existing technologies have revealed significant limitations.

[0004] First, its internal spatial layout has significant limitations. The core structure of three-dimensional cage aquaculture technology relies on a closed aquaculture unit composed of a suspended frame and net walls. In existing technologies, the interior of the cage generally uses a single-layer flat net bottom as the only load-bearing surface, resulting in a significant lack of behavioral adaptation design, especially a lack of response mechanisms to the natural habitat needs of crabs.

[0005] River crabs exhibit a strong tendency to live off the bottom and climb vertically, relying on substrates such as aquatic vegetation and rocks to achieve spatial stratification in their natural environment. However, the planar structure of existing net cages forces all individuals to be squeezed onto a single horizontal plane, inducing continuous stress (such as fighting and mutual interference). This leads to a double negative effect: on the one hand, due to the lack of a physical support interface to accommodate off-bottom behavior, molting individuals and sub-adults cannot obtain safe refuge spaces, resulting in increased mortality; on the other hand, the structural lack of habitat platforms forces live crabs to accumulate at the bottom of the net cages for extended periods. In the enclosed and high-density rearing environment of the net cages, dead crabs quickly sink to the bottom, harming the overall health of the population and causing losses.

[0006] How to solve the above problems is the research topic of this plan. Utility Model Content

[0007] In order to achieve the above-mentioned objectives and address the aforementioned technical problems, this utility model provides a crab farming cage.

[0008] The technical solution includes a frame body, a perching net panel inside the frame body, a top plate on the top of the frame body, and a pull-out storage box at the bottom of the frame body. The main frame includes a bottom frame and an upper frame. A slot is provided on one side of the bottom frame, and the pull-out storage box is slidably connected to the slot. The upper frame includes uprights and a crossbar between the tops of the uprights. The upper frame sidewalls are equipped with fixing rods for securing the outer protective netting; The habitat netting includes a vertical netting panel and two inclined netting panels. The inclined netting panels increase the habitat area for crabs.

[0009] The pull-out storage box is fixed to the outer wall of the bottom frame by spring clips and clip hooks; one end of the top plate is hinged to the frame body, and the other end is fixed to the frame body by spring clips and clip hooks.

[0010] The top of the upper frame is provided with a fixing ear plate for securing the hanging rope.

[0011] The inner cavity of the bottom frame and the inner cavity formed by the upper frame are connected; The uprights are positioned at the four corners of the top of the bottom frame, and the crossbars are positioned between the tops of adjacent uprights.

[0012] A set of vertical slide rails and two sets of inclined slide rails are provided between the upper frames; Each set of vertical and inclined slide rails includes two rods, and grooves are provided on the opposite side walls of the two rods in a set. The vertical mesh plate and the two inclined mesh plates are slidably connected to the chute; Rectangular handle frames are provided at the top of the vertical mesh panel and the two inclined mesh panels.

[0013] The width of the rectangular handle frame is greater than the width of the slide groove; The crossbar has a limiting groove at the top of the slide rail that matches the rectangular handle frame. The rectangular handle frame makes it easy for workers to pull out the vertical and inclined mesh panels from the slide rail.

[0014] A handle is installed on the outer wall of the pull-out storage box.

[0015] The beneficial effects of the technical solution provided by this utility model embodiment are: (1) Improve the utilization rate of habitat space The design of vertical and inclined mesh panels increases the three-dimensional habitat area and alleviates the problem of live crabs being crowded together; Provide refuge for molting crabs to reduce mortality; (2) Enhance the efficiency of dead crab collection The pull-out storage box uses a sliding design to quickly clean up dead crabs that have sunk to the bottom. Shorten the time dead crabs remain in the environment to block the spread of pathogens; (3) Convenient operation and maintenance The sliding groove and rectangular handle frame enable quick disassembly of the mesh panel; Spring clips and hook clips simplify the opening and closing process; (4) Structural stability optimization Uprights and crossbars enhance the load-bearing capacity of the frame; The fixed ear plate is adapted to the hanging rope for suspension, maintaining the balance of the net cage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the hidden outer protective netting in an embodiment of this utility model.

[0017] Figure 2 for Figure 1 A magnified view of part A.

[0018] Figure 3 This is a structural diagram showing the concealed outer protective net, vertical mesh panels, and top panel in an embodiment of this utility model.

[0019] Figure 4 This is a schematic diagram of the vertical mesh plate in an embodiment of the present invention.

[0020] The attached diagram is labeled as follows: 100, top plate; 6, pull-out storage box; 1, bottom frame; 2, upright; 3, horizontal bar; 7, fixing rod; 801, vertical mesh panel; 802, inclined mesh panel; 4, spring buckle; 5, buckle hook; 9, fixing ear plate; 10, rod body; 1001, slide groove; 803, rectangular handle frame; 11, limiting groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are only for explaining this utility model and are not intended to limit it.

[0022] It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0025] See Figures 1 to 4 This utility model provides a crab farming cage, including a frame body, a perching net board set inside the frame body, a top plate 100 set at the top of the frame body, and a pull-out storage box 6 set at the bottom of the frame body. The main frame includes a bottom frame 1 and an upper frame. A slot is provided on one side of the bottom frame 1, and the pull-out storage box 6 is slidably connected to the slot. The upper frame includes uprights 2 and crossbars 3 set between the tops of the uprights 2. The upper frame sidewall is provided with fixing rods 7 for fixing the outer protective netting; The habitat netting includes a vertical netting 801 and two inclined netting 802. The inclined netting increases the habitat area for crabs.

[0026] The pull-out storage box 6 is fixed to the outer wall of the bottom frame 1 by spring clips 4 and clip hooks 5; one end of the top plate is hinged to the frame body, and the other end is fixed to the frame body by spring clips 4 and clip hooks 5.

[0027] The top of the upper frame is equipped with a fixing ear plate 9 for securing the hanging rope.

[0028] The inner cavity of the bottom frame 1 is connected to the inner cavity formed by the upper frame; Uprights 2 are set at the four corners of the top of the bottom frame 1, and crossbars 3 are set between the tops of adjacent uprights 2.

[0029] A set of vertical slide rails and two sets of inclined slide rails are installed between the upper frames; Each set of vertical slide rails and inclined slide rails includes two rods 10, and each set of two rods 10 has a groove 1001 on its opposite side wall. The vertical mesh plate 801 and the two inclined mesh plates 802 are slidably connected to the slide groove 1001 respectively; A rectangular handle frame 803 is provided at the top of both the vertical mesh plate 801 and the two inclined mesh plates 802.

[0030] The width of the rectangular handle frame 803 is greater than the width of the slide groove 1001; A limiting groove 11 matching the rectangular handle frame 803 is provided on the top of the slide 1001 on the crossbar 3. The rectangular handle frame 803 is designed to facilitate the pull-out of the vertical and inclined mesh panels from the slide.

[0031] A handle is installed on the outer wall of the pull-out storage box 6.

[0032] When using this utility model, the following steps are included: Installation and deployment phase 1. Main Framework The bottom frame 1 and the inner cavity of the upper frame must remain connected to allow the crab to move freely.

[0033] 2. Installation of protective netting and roof slab The outer protective netting is stretched by seven fixing rods on the side wall of the upper frame, covering the entire side of the frame.

[0034] Install top plate 100: One end of the top plate is hinged to the crossbar 3 to achieve single-sided opening and closing.

[0035] The other end is locked and fixed to the buckle hook 5 by spring buckle 4, which makes it easy to open quickly when feeding.

[0036] Habitat system configuration The vertical mesh plate 801 is pushed vertically into the groove 1001 of the vertical slide rail.

[0037] Two inclined mesh panels 802 are pushed into the inclined slide rail grooves 1001 to form a three-dimensional habitat.

[0038] The width of the rectangular handle frame 803 at the top of the mesh plate is greater than that of the slide groove 1001, and it automatically locks into place after being pushed in.

[0039] The handle frame is further locked by the limiting groove 11 on the crossbar 3 to prevent the mesh panel from falling off.

[0040] Daily operating procedures 1. Dead crab cleanup and waste management Regularly (recommended 1-2 times per week) pull out the bottom storage box 6: Release the spring clip 4, grasp the handle on the outer wall of the storage box and pull it out horizontally.

[0041] After removing the dead crabs and sediment from the bottom, push it back along the opening of the trough and fasten the buckle.

[0042] The sliding design avoids disturbing the live crabs and the operation is quick.

[0043] 2. Mesh Panel Maintenance and Cleaning Disassembly: Pull the rectangular handle frame 803 upward to release the locking of the limit groove 11, and pull out the mesh plate along the slide groove 1001.

[0044] Cleaning: Rinse off any attached material (algae, uneaten bait) from the mesh, let it dry, and then reinsert it into the chute.

[0045] 3. Feeding and patrolling Open the top plate 100: After releasing the spring clip 4, lift the top plate and feed the net cage with bait.

[0046] Suspension adjustment: The suspension depth of the net cage is adjusted according to the water level by connecting the hanging rope through the fixed ear plate 9.

[0047] 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 net cage for crab farming, characterized in that, It includes a frame body, a perching net panel inside the frame body, a top plate (100) on the top of the frame body, and a pull-out storage box (6) at the bottom of the frame body. The main frame includes a bottom frame (1) and an upper frame. A slot is provided on one side of the bottom frame (1), and the pull-out storage box (6) is slidably connected to the slot. The upper frame includes a vertical pole (2) and a horizontal bar (3) provided between the tops of the vertical pole (2). The upper frame sidewall is provided with fixing rods (7) for fixing the outer protective netting; The perching netting includes a vertical netting (801) and two inclined netting (802).

2. The crab farming cage according to claim 1, characterized in that, The pull-out storage box (6) is fixed to the outer wall of the bottom frame (1) by spring buckles (4) and buckle hooks (5); one end of the top plate is hinged to the frame body, and the other end is fixed to the frame body by spring buckles (4) and buckle hooks (5).

3. The crab farming cage according to claim 2, characterized in that, The top of the upper frame is provided with a fixing ear plate (9) for fixing the hanging rope.

4. The crab farming cage according to claim 3, characterized in that, The inner cavity of the bottom frame (1) and the inner cavity formed by the upper frame are connected; The uprights (2) are set at the four corners of the top of the bottom frame (1), and the crossbars (3) are set between the tops of adjacent uprights (2).

5. The crab farming cage according to claim 4, characterized in that, A set of vertical slide rails and two sets of inclined slide rails are provided between the upper frames; Each set of vertical and inclined slide rails includes two rods (10), and the two rods (10) in a set are provided with grooves (1001) on their opposite side walls. The vertical mesh plate (801) and the two inclined mesh plates (802) are slidably connected to the slide groove (1001); A rectangular handle frame (803) is provided at the top of both the vertical mesh panel (801) and the two inclined mesh panels (802).

6. The crab farming cage according to claim 5, characterized in that, The width of the rectangular handle frame (803) is greater than the width of the slide groove (1001); The crossbar (3) has a limiting groove (11) at the top of the slide (1001) that matches the rectangular handle frame (803).

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