River crab enclosure breeding device convenient to adjust

Abstract

The utility model relates to the technical field of fence breeding device, and disclose a kind of river crab fence breeding device of adjusting, including installation bottom plate, the top of installation bottom plate is equipped with mounting hole, and the inside of mounting hole is provided with installation ground bolt.Quick positioning is positioned by first clamping slot, second clamping slot respectively through the setting of dismounting block one, dismounting block two, cooperate with the reinforcement of fixed peg one, fixed peg two, assembly and disassembly do not need complex tool, net body breakage, aging or need to replace different aperture net body, net body assembly can be integrally removed and replaced, simultaneously, telescopic fence superdense net adopts elastic telescopic material, can be adjusted with the synchronous telescopic of fence height, avoid to pull and damage, can effectively prevent juvenile crab escape, and multiple sets of device can be connected by the additional fixed peg of adjacent dismounting block one, dismounting block two, form continuous fence barrier, without complex splicing structure, reach the effect of improving device versatility and reducing breeding cost.

Description

Technical Field

[0001] This utility model relates to the technical field of fenced aquaculture devices, specifically an easily adjustable fenced aquaculture device for river crabs. Background Technology

[0002] Crab farming, as an important category of aquaculture, is widely distributed in various aquatic environments such as ponds, rice paddies, rivers, and lakes due to its high economic value. Enclosed farming, as the mainstream model for crab farming, has the core functions of delineating farming areas, preventing crabs from escaping, isolating them from predators and unwanted fish, and ensuring water circulation and ecological compatibility, directly impacting survival rates and economic benefits. As crab farming develops towards large-scale and refined operations, farming scenarios are becoming increasingly diverse (from small-scale family rice paddy farming to large-scale corporate pond farming). The requirements for enclosures during the crab's growth stages are also dynamically changing (juvenile crabs require denser mesh and lower enclosure height, while adult crabs require taller enclosures to resist escape and wind and waves).

[0003] Traditional fences are mostly fixed-size integrated structures, with no flexibility in adjusting height and length. If the depth of the aquaculture area changes (such as rising water levels during the rainy season and falling water levels during the dry season) or the crabs enter different growth stages, the entire fence needs to be replaced, which is costly and cumbersome. Furthermore, fixed-size fences are difficult to adapt to irregular aquaculture areas (such as irregularly shaped rice paddies or river bends), and gaps easily appear after splicing, allowing the crabs to escape. At the same time, traditional fences are mostly fixed to the mesh and frame by welding or bolts. When the mesh is damaged or aged, the entire frame needs to be disassembled for replacement, which is time-consuming and labor-intensive. In addition, the fence is heavy, making it inconvenient to store and transport after the aquaculture season and occupying a lot of storage space. Therefore, there is a need to design an adjustable crab aquaculture fence device. Utility Model Content

[0004] The purpose of this invention is to provide an easily adjustable crab enclosure farming device, which solves the technical problems of inconvenient enclosure height adjustment and cumbersome enclosure assembly and disassembly, thereby improving the adaptability of farming and reducing farming costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an easily adjustable crab enclosure farming device, comprising a mounting base plate, wherein the top of the mounting base plate has mounting holes, and two sets of mounting bolts are provided inside the mounting holes in a symmetrical arrangement; two sets of mounting seats are fixedly mounted on the top of the mounting base plate in a symmetrical arrangement; a first adjusting mounting sleeve is fixedly mounted on the top of the mounting seat, and a second adjusting mounting sleeve is symmetrically arranged around the first adjusting mounting sleeve, wherein the first adjusting mounting sleeve and the second adjusting mounting sleeve are identical; the... Control adjustment switches are fixedly installed on the outer walls of the first and second adjusting mounting sleeves; an adjustment disassembly assembly is disposed above and below the first and second adjusting mounting sleeves; the adjustment disassembly assembly includes: an adjustment mounting part, which is disposed above and inside the first and second adjusting mounting sleeves; and a replacement disassembly part, which is disposed below and outside the first and second adjusting mounting sleeves, and the replacement disassembly part is disposed below and to one side of the adjustment mounting part.

[0006] Preferably, the adjustment mounting part includes: an adjustment slide cavity, which is opened inside the first adjustment mounting sleeve and the second adjustment mounting sleeve; an mounting ring frame is provided above the adjustment slide cavity, a servo motor is fixedly installed inside the mounting ring frame, and an adjustment screw is provided at the output end of the servo motor through a coupling, and the adjustment screw extends into the interior of the adjustment slide cavity.

[0007] Preferably, a limiting adjustment groove is provided on one side of the adjusting screw, and the limiting adjustment groove is formed on the inner side wall of the first adjusting mounting sleeve and the second adjusting mounting sleeve. A movable upper mounting plate is movably sleeved on the outer wall of the adjusting screw, and the movable upper mounting plate is slidably connected to the limiting adjustment groove and is set above the mounting base. A first slot is formed on the top of the movable upper mounting plate, and a first through hole is formed on the outer wall of the movable upper mounting plate, passing through the first slot.

[0008] Preferably, a height scale bar is provided below the servo motor, and the height scale bar is fixedly installed on the front of the first adjustment mounting sleeve and the second adjustment mounting sleeve. A disassembly and assembly slot is provided below the movable upper mounting plate, and the disassembly and assembly slot is opened at the top of the mounting base and located on the inner side of the first adjustment mounting sleeve.

[0009] Preferably, the inside of the disassembly slot is provided with an inverted L-shaped card plate by snap-fit, the top of the inverted L-shaped card plate is provided with a fixing card hole, and the fixing card hole extends into the inside of the mounting base, and the inside of the fixing card hole is provided with a fixing card post.

[0010] Preferably, the replacement and disassembly part includes: a disassembly block one, which is snap-fitted into the inside of the first slot; the outer wall of the disassembly block one is provided with an adapter hole, which is adapted to the first through hole; a handle is fixedly installed on the top of the disassembly block one; a fixing bolt one passes through the inside of the adapter hole and extends to the outer wall of the first through hole; and a cap one is provided at one end of the fixing bolt one through a threaded connection.

[0011] Preferably, a second slot is provided below the first disassembly block, and the second slot is opened inside the inverted L-shaped card plate. The second disassembly block is installed inside the second slot by snap-fit. A second through hole is opened on the outer wall of the second disassembly block, and the second through hole extends to the outer wall of the inverted L-shaped card plate.

[0012] Preferably, a fixing bolt 2 passes through the interior of the second perforation, and a cap 2 is provided at one end of the fixing bolt 2 by a threaded connection. A telescopic fence ultra-dense net is fixedly installed between the bottom of the disassembly block 1 and the top of the disassembly block 2.

[0013] This invention provides an easily adjustable crab enclosure farming device. It has the following beneficial effects: (1) This utility model is equipped with a servo motor-driven adjusting screw transmission and a limit adjustment slide guide constraint to realize the vertical lifting of the moving upper mounting plate, which is adapted to the escape prevention needs of different water depths and crab growth stages. There is no need to replace the main body of the fence. The adjusting screw has a self-locking function, which can firmly lock the position of the moving upper mounting plate after power failure, avoiding height deviation caused by external force or gravity. At the same time, the inverted L-shaped card plate is double fixed by the disassembly and assembly card slot and the fixed card post, providing stable support for the bottom of the fence. With the installation of ground bolts to fix the main body of the device, the fence can resist the impact of wind and waves below level 1, without the risk of displacement or tipping, thus improving the adaptability of aquaculture.

[0014] (2) This utility model is equipped with a disassembly block 1 and a disassembly block 2 for quick positioning through the first slot and the second slot respectively, and is reinforced with a fixing bolt 1 and a fixing bolt 2. Assembly and disassembly do not require complicated tools. When the net is damaged, aged or needs to be replaced with a net of different aperture, the net components can be taken out as a whole for replacement, which greatly improves the operation and maintenance efficiency. At the same time, the telescopic fence ultra-dense net is made of elastic telescopic material, which can be adjusted synchronously with the fence height to avoid pulling damage and effectively prevent juvenile crabs from escaping. Moreover, multiple sets of devices can be connected by additional fixing bolts of adjacent disassembly blocks 1 and 2 to form a continuous fence barrier. There is no need for a complicated splicing structure. It can be flexibly spliced ​​into different shapes such as rectangles and irregular shapes according to the breeding needs, and is suitable for various breeding areas such as ponds, paddy fields and rivers. It has strong versatility and achieves the effect of improving the versatility of the device and reducing the breeding cost. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of an easily adjustable crab enclosure farming device according to the present invention. Figure 3 This is a side view of the adjustment mechanism of an easily adjustable crab enclosure aquaculture device according to this utility model. Figure 4 This is an exploded view of the disassembly and assembly structure of an easily adjustable crab enclosure aquaculture device according to this utility model.

[0016] In the diagram: 1. Mounting base plate; 2. Mounting bolt; 3. Mounting seat; 4. First adjusting mounting sleeve; 5. Second adjusting mounting sleeve; 6. Control adjusting switch; 7. Adjusting disassembly assembly; 71. Adjusting mounting position; 711. Adjusting slide cavity; 712. Mounting ring frame; 713. Servo motor; 714. Adjusting screw; 715. Limit adjusting slide groove; 716. Moving upper mounting plate; 717. First slot; 718. First through hole; 719. Height scale bar; 7110. Disassembly slot; 7111. Inverted L-shaped card plate; 7112. Fixing card hole; 7113. Fixing card post; 72. Replacement disassembly part; 721. Disassembly block one; 722. Adaptor hole; 723. Use handle; 724. Fixing bolt one; 725. Cap one; 726. Second slot; 727. Disassembly block two; 728. Second through hole; 729. Fixing bolt two; 7210. Telescopic fence ultra-dense net. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0019] Example 1: Based on the existing problems of inconvenient fence height adjustment and cumbersome fence assembly and disassembly, the present invention provides a preferred embodiment of an easily adjustable crab farming fence device, for example... Figure 1-4As shown: An easily adjustable crab enclosure farming device includes a mounting base plate 1. The top of the mounting base plate 1 has mounting holes, and two sets of mounting bolts 2 are installed inside the mounting holes, arranged symmetrically. Two sets of mounting seats 3 are fixedly mounted on the top of the mounting base plate 1, also arranged symmetrically. A first adjusting mounting sleeve 4 is fixedly mounted on the top of the mounting seat 3. A second adjusting mounting sleeve 5 is symmetrically arranged around the first adjusting mounting sleeve 4, and the first adjusting mounting sleeve 4 and the second adjusting mounting sleeve 5 are identical. A control adjustment switch 6 is fixedly installed on the outer wall of the cylinder 5; an adjustment disassembly assembly 7 is disposed above and below the first adjustment mounting sleeve 4 and the second adjustment mounting sleeve 5; the adjustment disassembly assembly 7 includes: an adjustment mounting part 71, which is disposed above and inside the first adjustment mounting sleeve 4 and the second adjustment mounting sleeve 5; and a replacement disassembly part 72, which is disposed below and outside the first adjustment mounting sleeve 4 and the second adjustment mounting sleeve 5, and the replacement disassembly part 72 is disposed below and to one side of the adjustment mounting part 71.

[0020] The adjustment mounting part 71 includes: an adjustment slide cavity 711, which is opened inside the first adjustment mounting sleeve 4 and the second adjustment mounting sleeve 5; a mounting ring frame 712 is provided above the adjustment slide cavity 711, and a servo motor 713 is fixedly installed inside the mounting ring frame 712. The output end of the servo motor 713 is provided with an adjustment screw 714 through a coupling, and the adjustment screw 714 extends into the interior of the adjustment slide cavity 711.

[0021] A limiting adjustment groove 715 is provided on one side of the adjusting screw 714, and the limiting adjustment groove 715 is opened on the inner side wall of the first adjusting mounting sleeve 4 and the second adjusting mounting sleeve 5. A movable upper mounting plate 716 is movably sleeved on the outer wall of the adjusting screw 714, and the movable upper mounting plate 716 is slidably connected to the limiting adjustment groove 715 and is set above the mounting base 3. A first slot 717 is opened on the top of the movable upper mounting plate 716, and a first through hole 718 is opened on the outer wall of the movable upper mounting plate 716, which passes through the first slot 717.

[0022] A height scale bar 719 is provided below the servo motor 713, and the height scale bar 719 is fixedly installed on the front of the first adjusting mounting sleeve 4 and the second adjusting mounting sleeve 5. A disassembly and assembly slot 7110 is provided below the movable upper mounting plate 716, and the disassembly and assembly slot 7110 is opened on the top of the mounting base 3 and located on the inner side of the first adjusting mounting sleeve 4.

[0023] The inside of the disassembly and assembly slot 7110 is provided with an inverted L-shaped card plate 7111 by snap-fit. The top of the inverted L-shaped card plate 7111 is provided with a fixing card hole 7112, and the fixing card hole 7112 extends into the inside of the mounting base 3. A fixing card post 7113 is provided inside the fixing card hole 7112.

[0024] Furthermore, this embodiment utilizes a servo motor 713 to drive the adjusting screw 714, which, in conjunction with the guiding constraint of the limit adjusting slide 715, enables the vertical lifting and lowering of the movable upper mounting plate 716. This adapts to the escape prevention needs of different water depths and crab growth stages, eliminating the need to replace the main body of the fence. The adjusting screw 714 also has a self-locking function, which can firmly lock the position of the movable upper mounting plate 716 after power failure, preventing height deviation caused by external forces or gravity. At the same time, the inverted L-shaped card plate 7111 is doubly fixed by the disassembly and assembly card slot 7110 and the fixed card post 7113, providing stable support for the bottom of the fence. Combined with the installation of the ground bolt 2 to fix the main body of the device, the fence can withstand the impact of wind and waves below level 3, without the risk of displacement or tipping.

[0025] Example 2: Based on Embodiment 1, a preferred embodiment of the easily adjustable crab enclosure aquaculture device provided by this utility model is, for example... Figure 1-4 As shown: The replacement and disassembly part 72 includes: a disassembly block 721, which is snapped into the inside of the first slot 717; the outer wall of the disassembly block 721 is provided with an adapter hole 722, which is adapted to the first through hole 718; a use handle 723 is fixedly installed on the top of the disassembly block 721; a fixing bolt 724 passes through the inside of the adapter hole 722 and extends to the outer wall of the first through hole 718; one end of the fixing bolt 724 is provided with a cap 725 by threaded connection.

[0026] A second slot 726 is provided below the first disassembly block 721, and the second slot 726 is opened inside the inverted L-shaped card plate 7111. The second disassembly block 727 is installed inside the second slot 726 by snap-fit. A second through hole 728 is opened on the outer wall of the second disassembly block 727, and the second through hole 728 extends to the outer wall of the inverted L-shaped card plate 7111.

[0027] The second perforation 728 has a fixing bolt 729 running through it, and one end of the fixing bolt 729 is provided with a cap 729 by threaded connection. A telescopic fence ultra-dense net 7210 is fixedly installed between the bottom of the disassembly block 721 and the top of the disassembly block 727.

[0028] Furthermore, this embodiment features a quick-positioning mechanism with disassembly block 721 and disassembly block 727 via first slot 717 and second slot 726, respectively, reinforced by fixing bolts 724 and 729. Assembly and disassembly require no complex tools. When the net is damaged, aged, or needs to be replaced with a net of different aperture, the entire net assembly can be removed for replacement, significantly improving maintenance efficiency. Meanwhile, the telescopic fence ultra-dense net 7210 uses an elastic telescopic material, which can extend and retract synchronously with the fence height, avoiding pulling damage and effectively preventing juvenile crabs from escaping. In addition, multiple sets of devices can be connected by additional fixing bolts of adjacent disassembly blocks 721 and 727 to form a continuous fence barrier without the need for complex splicing structures. They can be flexibly spliced ​​into different shapes such as rectangles and irregular shapes according to aquaculture needs, adapting to various aquaculture areas such as ponds, paddy fields, and rivers, and are highly versatile.

[0029] During use, according to the aquaculture area plan, such as the boundary of a pond or paddy field, place the mounting base 1 stably on the bank or the edge of the water, ensuring that both sets of mounting seats 3 face the inside of the aquaculture area. Insert the mounting bolts 2 into the soil or bottom silt through the mounting holes on the top of the mounting base 1, with an insertion depth of ≥30cm. Secure the two sets of mounting bolts 2 symmetrically, ensuring that the mounting base 1 does not shift or tilt, providing a stable foundation for subsequent fence installation. Test the operating status of the first adjusting mounting sleeve 4 and the second adjusting mounting sleeve 5 by controlling the adjusting switch 6, ensuring that the adjusting cavity 711 is free of debris and that the moving upper mounting plate 716 slides smoothly along the limiting adjusting groove 715; check the clarity of the height scale 719 to ensure accurate readings during height adjustment.

[0030] Furthermore, the adjustment mounting part 71 uses a servo motor to drive a lead screw, enabling the vertical lifting and lowering of the upper mounting plate, thereby adjusting the overall height of the fence to adapt to different breeding scenarios. The specific process is as follows: Based on the depth of the aquaculture area and the growth stage of the crabs, the target height is input via the control switch 6, and the current height is displayed in real time on the height scale 719 for precise control. The servo motor 713 inside the mounting ring 712 is activated, and its output drives the adjusting screw 714 to rotate within the adjusting cavity 711 via a coupling. Since the movable upper mounting plate 716 is threadedly connected to the adjusting screw 714, and its rotational freedom is restricted by the limiting adjusting groove 715, the rotational motion of the adjusting screw 714 is converted into the vertical lifting motion of the movable upper mounting plate 716. The movable upper mounting plate 716 smoothly rises and falls along the limiting adjusting groove 715, and the height change is observed in real time via the height scale 719. When the target height is reached, the servo motor 713 is turned off by controlling the control switch 6, and the adjusting screw 714 self-locks, ensuring that the movable upper mounting plate 716 will not shift due to external force or gravity. To enhance the stability of the fence bottom, insert the inverted L-shaped card plate 7111 into the disassembly slot 7110 on the top of the mounting base 3, align the fixing hole 7112 on the top of the inverted L-shaped card plate 7111 with the reserved hole inside the mounting base 3, and insert the fixing pin 7113 to complete the locking. The inverted L-shaped card plate 7111 provides additional support for the bottom of the fence to prevent the mesh from deforming.

[0031] Furthermore, the replacement and disassembly part 72 utilizes a dual structure of snap-fit ​​and bolt fixing to achieve rapid assembly and replacement of the ultra-dense telescopic fence, balancing sturdiness and convenience. The specific process is as follows: Holding the handle 723, precisely insert the disassembly block 721 into the first slot 717 on the top of the movable upper mounting plate 716, ensuring that the adapter hole 722 on the outer wall of the disassembly block 721 is completely aligned with the first through hole 718 of the movable upper mounting plate 716. Pass the fixing bolt 724 through the adapter hole 722 and the first through hole 718, and screw on the cap 725 at one end of the fixing bolt 724. After tightening, the disassembly block 721 and the movable upper mounting plate 716 are firmly fixed, preventing the top of the fence from shaking. Insert the disassembly block 727 into the second slot 726 inside the inverted L-shaped plate 7111, ensuring that the second through hole 728 of the disassembly block 727 is aligned with the reserved hole on the outer wall of the inverted L-shaped plate 7111. Pass the fixing bolt 729 through the second through hole 728, and screw on the cap 729 to lock it in place, fixing the disassembly block 727 and the inverted L-shaped plate 7111 as one unit. After disassembly block 1 721 and disassembly block 2 727 are fixed, the telescopic fence ultra-dense net 7210 between them naturally unfolds, forming a complete protective fence. The telescopic fence ultra-dense net 7210 is made of elastic telescopic material and can expand and contract synchronously with the height adjustment of the moving upper mounting plate 716, effectively preventing juvenile crabs from escaping without affecting water circulation. If it is necessary to expand the breeding area, repeat the above steps to install multiple sets of devices. Disassembly blocks 1 721 and disassembly blocks 2 727 of adjacent devices can be connected by additional fixing bolts to form a continuous fence barrier, suitable for different breeding areas such as rectangular and irregular shapes.

[0032] Net Replacement Process: When the telescopic fence ultra-dense net 7210 is damaged, aged, or needs to be replaced with a net of different aperture, simply unscrew cap one 725 and cap two, pull out fixing bolt one 724 and fixing bolt two 729, and use the handle 723 to remove disassembly block one 721, disassembly block two 727, and the telescopic fence ultra-dense net 7210 as a whole. After replacing with new net components, re-clamp and fix them. The entire process does not require disassembling the main body of the device. When the fence height needs to be adjusted during the crab growth process, there is no need to disassemble the net. Simply start the servo motor 713 by controlling the adjustment switch 6, move the upper mounting plate 716 to drive disassembly block one 721 to rise and fall synchronously, and the telescopic fence ultra-dense net 7210 will naturally expand and contract with the height change, avoiding damage to the net by pulling. During the height adjustment process, the limit adjustment slide 715 ensures that the moving upper mounting plate 716 does not deviate, ensuring that the net is unfolded flat. After the breeding season ends, unscrew the fixing bolts 724 and 729 to remove the net assembly; lower the upper mounting plate 716 to the lowest position by controlling the adjustment switch 6, and unscrew the mounting bolt 2 to disassemble and store the main body of the device, reducing its volume by 60% for easy transportation and storage.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An easily adjustable crab enclosure farming device, comprising a mounting base plate (1), characterized in that: The mounting base plate (1) has mounting holes on its top, and mounting bolts (2) are installed inside the mounting holes. There are two sets of these bolts, arranged symmetrically. The mounting base plate (1) has mounting seats (3) fixedly installed on its top, and there are two sets of these bolts, arranged symmetrically. The mounting seat (3) has a first adjusting mounting sleeve (4) fixedly installed on its top. The first adjusting mounting sleeve (4) is connected to a second adjusting mounting sleeve (5) symmetrically. The first adjusting mounting sleeve (4) and the second adjusting mounting sleeve (5) are identical. Control adjustment switches (6) are fixedly installed on the outer walls of the first adjusting mounting sleeve (4) and the second adjusting mounting sleeve (5). Adjustment assembly (7), which is located above and below the first adjustment mounting sleeve (4) and the second adjustment mounting sleeve (5); The adjustment and disassembly assembly (7) includes: Adjustable mounting part (71), the adjustable mounting part (71) is located above and inside the first adjustable mounting sleeve (4) and the second adjustable mounting sleeve (5); The replacement and disassembly part (72) is located below and outside the first adjusting mounting sleeve (4) and the second adjusting mounting sleeve (5), and the replacement and disassembly part (72) is located below and to one side of the adjusting mounting part (71).

2. The easily adjustable crab enclosure farming device according to claim 1, characterized in that: The adjustable mounting part (71) includes: Adjusting slide cavity (711), the adjusting slide cavity (711) is opened inside the first adjusting mounting sleeve (4) and the second adjusting mounting sleeve (5); An installation ring frame (712) is provided above the adjustment slide cavity (711). A servo motor (713) is fixedly installed inside the installation ring frame (712). An adjustment screw (714) is provided at the output end of the servo motor (713) through a coupling, and the adjustment screw (714) extends into the interior of the adjustment slide cavity (711).

3. The easily adjustable crab enclosure farming device according to claim 2, characterized in that: The adjusting screw (714) is provided with a limiting adjusting groove (715) on one side, and the limiting adjusting groove (715) is opened on the inner side wall of the first adjusting mounting sleeve (4) and the second adjusting mounting sleeve (5). The outer wall of the adjusting screw (714) is movably fitted with a movable upper mounting plate (716), and the movable upper mounting plate (716) is slidably connected with the limiting adjusting groove (715) and is set above the mounting base (3). The top of the movable upper mounting plate (716) is provided with a first slot (717), and the outer wall of the movable upper mounting plate (716) is provided with a first through hole (718) that passes through the first slot (717).

4. The easily adjustable crab enclosure farming device according to claim 3, characterized in that: The servo motor (713) is provided with a height scale bar (719) below it, and the height scale bar (719) is fixedly installed on the front of the first adjustment mounting sleeve (4) and the second adjustment mounting sleeve (5). The movable upper mounting plate (716) is provided with a disassembly and assembly slot (7110) below it, and the disassembly and assembly slot (7110) is opened on the top of the mounting base (3) and is located on the inner side of the first adjustment mounting sleeve (4).

5. The easily adjustable crab enclosure farming device according to claim 4, characterized in that: The inside of the disassembly slot (7110) is provided with an inverted L-shaped card plate (7111) by snap-fit. The top of the inverted L-shaped card plate (7111) is provided with a fixing card hole (7112), and the fixing card hole (7112) extends into the inside of the mounting base (3). The inside of the fixing card hole (7112) is provided with a fixing card post (7113).

6. The easily adjustable crab enclosure farming device according to claim 1, characterized in that: The replacement and disassembly part (72) includes: Disassembly block one (721) is disposed inside the first slot (717) by snap-fit; The outer wall of the disassembly block 1 (721) is provided with an adapter hole (722), and the adapter hole (722) is compatible with the first through hole (718). The top of the disassembly block 1 (721) is fixedly installed with a handle (723). A fixing bolt 1 (724) passes through the interior of the adapter hole (722), and the fixing bolt 1 (724) extends to the outer wall of the first through hole (718). One end of the fixing bolt 1 (724) is provided with a cap 1 (725) by threaded connection.

7. The easily adjustable crab enclosure farming device according to claim 6, characterized in that: The first disassembly block (721) is provided with a second slot (726) below it, and the second slot (726) is opened inside the inverted L-shaped card plate (7111). The second disassembly block (727) is provided inside the second slot (726) by snap-fit. The outer wall of the second disassembly block (727) is provided with a second through hole (728), and the second through hole (728) extends to the outer wall of the inverted L-shaped card plate (7111).

8. The easily adjustable crab enclosure farming device according to claim 7, characterized in that: The second perforation (728) is penetrated by a fixing bolt (729), and a cap is provided at one end of the fixing bolt (729) by a threaded connection. A telescopic fence ultra-dense net (7210) is fixedly installed between the bottom of the disassembly block one (721) and the top of the disassembly block two (727).

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