Automatic catching device for shrimps and crabs

Abstract

The utility model relates to the technical field of aquaculture, in particular to an automatic shrimp and crab capturing device. The automatic shrimp and crab capturing device comprises a ground cage body, a storage box and a weighing device. A fishing net and a net rack are arranged at one end of the ground cage body, and a shrimp and crab outlet is formed between the net rack and the fishing net. A mounting plate and a fixing plate are arranged on one side of the storage box, an inlet allowing shrimps and crabs to enter is formed between the mounting plate and the fixing plate, a first fixing groove is formed in the mounting plate and used for clamping a net rack, and the net rack is fixed to the inlet through the fixing plate. And the weighing device can weigh the shrimps and the crabs in the storage box, so that a farmer can know the weight of the shrimps and the crabs in the storage box in real time. The shrimp and crab storage box is additionally arranged at one end of the ground cage body, the shrimps and the crabs can automatically climb into the storage box after entering the ground cage body, the ground cage body can be left in water for continuous use, and therefore the fishing efficiency and quality of the shrimps and the crabs are improved, manual operation and cost are reduced, and the fishing process is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture equipment, in particular to an automatic shrimp and crab catching device. Background Art

[0002] At present, when shrimps and crabs are cultured in rice fields or ponds, ground cages are usually used for fishing. Ground cages are usually composed of a long net and a frame. There are many shrimp and crab entrances on both sides of the ground cage, and its entrance structure is relatively complex (called inverted whiskers in the industry). Due to this special structure, it is difficult for shrimps and crabs to get out after entering. The ground cage is provided with at least one exit, which is usually arranged at the tail of the ground cage. The exit is generally composed of a frame and a fishing net that shrinks inward. During use, it is generally necessary to tighten the fishing net at the exit with a rope, and the exit generally leaks out of the water. The method of using the ground cage in the prior art is to put it into the water, then check it regularly, open the rope of the exit, pour out the captured shrimps and crabs from the exit, put in new bait, and then put it back into the water, and repeat this process.

[0003] Although the trap fishing method is simple, it also has some shortcomings. For example, the capacity of the trap is limited, and only a certain number of shrimps and crabs can be caught at one time. If the trap is not retracted in time to take out the shrimps and crabs, some shrimps and crabs may be suffocated in the trap. In addition, in the prior art, when taking out the shrimps and crabs in the trap, the trap needs to be lifted out of the water and then put back into the water, which consumes a lot of manpower and time. Utility Model Content

[0004] In order to solve the problem in the prior art that when taking out shrimps and crabs caught in a ground trap, the ground trap needs to be taken out of water and then put into water, which causes inconvenience in use, the utility model provides an automatic shrimp and crab catching device.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows: an automatic shrimp and crab catching device, which includes a ground cage body, one end of which is provided with a fishing net and a net frame for supporting the fishing net, and an outlet for dumping shrimps and crabs is formed between the net frame and the fishing net; the automatic shrimp and crab catching device also includes a storage box and a weighing device, one side of the storage box is provided with a mounting plate and a fixing plate, the mounting plate and the storage box are an integral structure, and the fixing plate can be detachably mounted on the storage box; the mounting plate and the fixing plate are both hollow structures, and the mounting plate and the fixing plate are suitable for forming a weighing device for The entrance of the storage box for shrimps and crabs, the mounting plate is provided with a fixing groove one, the fixing groove one is used to clamp the grid, the fixing plate is arranged above the fixing groove one, the fixing plate fixes the grid installed in the fixing groove one to the entrance; the weighing device includes a weighing sensor, a control unit and a display light, the weighing sensor is arranged at the bottom of the storage box, the control unit and the display light are both installed on the storage box, the weighing sensor converts gravity into an electrical signal and transmits it to the control unit, the control unit receives the electrical signal and controls the light of the display light to change.

[0006] As a further improvement of the above solution, the automatic shrimp and crab capturing device further comprises a support frame, the support frame is mounted on the bottom of the storage box, and the weighing sensor is arranged on a side facing the storage box.

[0007] As a further improvement of the above solution, a plurality of insertion rods are provided on a side of the support frame away from the storage box, and the plurality of insertion rods are arranged around the support frame.

[0008] As a further improvement of the above solution, the mounting plate is an arc-shaped structure or a square structure.

[0009] As a further improvement of the above solution, a plurality of groups of limiting members are provided on the mounting plate, and the plurality of groups of limiting members are arranged on the mounting plate at intervals, and the limiting members are suitable for limiting the grid within the first fixing groove.

[0010] As a further improvement of the above scheme, the number of the limiting members in each group is two, and a gap is provided between the two limiting members, the gap facilitates the insertion of the grid into the fixing groove 1, and the limiting members are rubber limiting members.

[0011] As a further improvement of the above solution, the fixing plate is provided with a second fixing groove, the second fixing groove faces the first fixing groove, and the second fixing groove cooperates with the first fixing groove to limit the grid.

[0012] As a further improvement of the above solution, plug blocks are provided on both sides of the fixing plate, and slots cooperating with the plug blocks are provided on the mounting plate. The fixing plate is suitable for being detachably mounted on the top of the mounting plate through the plug blocks.

[0013] As a further improvement of the above solution, a first mounting hole is provided on the plug block, a second mounting hole is provided on the mounting plate, and the first mounting hole on the plug block inserted into the slot is aligned with the second mounting hole.

[0014] As a further improvement of the above solution, the storage box is further provided with a guide plate, which is mounted on the mounting plate and the inner wall of the storage box, and a guide groove is provided on the guide plate, and the guide groove is connected to the inlet.

[0015] As a further improvement of the above solution, the guide groove is integrally arranged to be inclined downward from the inner wall of the storage box.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) By adding a storage box for shrimps and crabs at one end of the ground cage body, the shrimps and crabs can automatically crawl into the storage box after entering the ground cage body, eliminating the manual harvesting process. In the actual harvesting process, the shrimps and crabs in the storage box only need to be poured out to complete the harvesting of shrimps and crabs, and the ground cage body can be left in the water for continued use, eliminating the need to take the ground cage body out of the water in time and then pour out the shrimps and crabs in the ground cage to achieve the harvesting process in the prior art, thereby improving the efficiency and quality of shrimp and crab fishing, reducing manual operations and costs, and simplifying the fishing process.

[0018] (2) By setting up a weighing device, the weighing device can weigh the weight of the shrimps and crabs in the storage box in time, and at the same time can control the display light to change through the control unit to remind the farmer that the weight of the shrimps and crabs in the storage box has reached the preset value, so that the farmer can pour out the shrimps and crabs in the storage box in time to avoid the situation where the shrimps and crabs are prone to lack of oxygen and death due to excessive number of shrimps and crabs in the storage box for too long.

[0019] (3) By setting up the mounting plate and the fixing plate, the grid and the storage box can be quickly fixedly connected, thereby improving the stability of the connection between the grid and the storage box. The entire fixing process is simple and convenient, and the fixing effect is good.

[0020] (4) The storage box has a large space, which is much larger than the storage space of the ground trap body. Therefore, the storage box can accommodate more shrimps and crabs, thereby lengthening the interval for pouring out the captured shrimps and crabs, saving manpower and time. At the same time, water is placed in the storage box, which can provide a good living environment for the harvested shrimps and crabs, so that the harvested shrimps and crabs remain active and healthy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a three-dimensional diagram of the automatic shrimp and crab catching device provided by the utility model (without the fixing plate installed).

[0022] Figure 2 This is a schematic diagram of the utility model when the grid frame is inserted into the installation part (the fixing plate is not installed).

[0023] Figure 3 This is a schematic diagram of the utility model when the fixing plate clamps the grid frame to the installation part.

[0024] Figure 4 This is a top view of the automatic shrimp and crab catching device provided by the utility model.

[0025] Figure 5 For this utility model Figure 4 Cross-sectional view along AA.

[0026] Figure 6 For this utility model Figure 1 A magnified schematic diagram of point B in the middle.

[0027] Figure 7 For this utility model Figure 2 Enlarged schematic diagram of point C in the middle.

[0028] Figure 8 For this utility model Figure 3 Enlarged schematic diagram of point D in the middle.

[0029] Fig. 9 It is a schematic diagram of the weighing device in the utility model.

[0030] In the figure: 1. storage box; 11. mounting plate; 111. fixing slot 1; 112. limiter; 113. slot; 114. mounting hole 2; 12. fixing plate; 121. plug-in block; 122. fixing slot 2; 13. entrance; 14. guide plate; 15. guide slot; 21. weighing sensor; 22. control unit; 23. display light; 3. support frame; 31. plug-in rod; 4. grid frame. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0032] In the description of the present utility model, it should be noted that for directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions and positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present utility model. The terms "first", "second" and the like in the specification and claims of the present utility model are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. The terms "including" and "having" in the specification and claims of the present utility model and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device including a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] Reference Figure 1As shown, an embodiment of the utility model provides an automatic shrimp and crab capture device, which includes a ground cage body, and the ground cage body is a common structure in the prior art. A fishing net and a net frame 4 for supporting the fishing net are provided at one end of the ground cage body, and an outlet for dumping shrimps and crabs is formed between the net frame 4 and the fishing net, and shrimps and crabs captured by the ground cage body can be poured out through the outlet. The automatic shrimp and crab capture device also includes a storage box 1 and a weighing device, and the cavity in the storage box 1 is connected to the outlet. When shrimps and crabs are attracted by the bait and enter the ground cage body, due to the consumption of oxygen in the water, the shrimps and crabs will swim upward, so the shrimps and crabs will enter the storage box 1 from the outlet of the ground cage body, and the storage box 1 is used to store the shrimps and crabs captured by the ground cage body, which can effectively solve the technical problem in the prior art that due to the limited capacity of the ground cage, the ground cage body needs to be lifted out of the water in time, and then the captured shrimps and crabs need to be poured out of the ground cage body and put back into the water. This operation requires a lot of manpower and time. The utility model provides a storage box 1, and the storage box 1 is connected with the outlet of the ground cage body, so that the shrimps and crabs captured by the ground cage body can directly enter the storage box 1 from the outlet, eliminating the process of manually collecting the ground cage body. In the actual operation process, it is only necessary to take out the storage box 1, and the ground cage body can be left in the water for continued use, thereby improving the fishing efficiency and quality, reducing manual operation and cost, and simplifying the fishing process. The weighing device is arranged below the storage box 1, and the weighing device is suitable for weighing the shrimps and crabs in the storage box 1. It is convenient for the breeding personnel to observe the weight of the shrimps and crabs in each storage box 1 at any time. When the density of shrimps and crabs is too large (that is, the weight exceeds the storage upper limit of the storage box 1), the shrimps and crabs in the storage box 1 can be poured out immediately, thereby avoiding the death of shrimps and crabs in the storage box 1 due to excessive density, and improving the quality of the captured shrimps and crabs.

[0034] In this embodiment, a certain amount of water is provided in the storage box 1, and a water outlet pipe may be provided at the bottom of the storage box 1, which can be connected to an external circulating water system, so that the water in the storage box 1 can be replaced regularly, thereby maintaining the freshness of the water in the storage box 1, so that the shrimps and crabs remain active and healthy while waiting to be harvested.

[0035] In addition, an aerator can be provided in the storage box 1. By providing the aerator, the oxygen content in the water in the storage box 1 can be increased to ensure that the shrimps and crabs in the water will not be short of oxygen. At the same time, it can also inhibit the growth of anaerobic bacteria in the water, preventing the water in the storage box 1 from deteriorating and affecting the growth of shrimps and crabs.

[0036] like Figures 1 to 3As shown, a mounting plate 11 and a fixing plate 12 are provided on one side of the storage box 1. The mounting plate 11 and the storage box 1 can be an integral structure, and the fixing plate 12 can be detachably mounted on the storage box 1. The mounting plate 11 and the fixing plate 12 are both hollow structures, and an entrance 13 for shrimps and crabs to enter the storage box 1 is formed between the mounting plate 11 and the fixing plate 12. A fixing groove 111 is provided on the mounting plate 11, and the fixing groove 111 is used to clamp the grid 4. The fixing plate 12 is arranged above the fixing groove 111, and the fixing plate 12 fixes the grid 4 installed in the fixing groove 111 to the entrance 13. When installing the net frame 4 and the storage box 1, first insert the net frame 4 into the fixing groove 111, and the fixing groove 111 can preliminarily fix the lower half of the net frame 4, and then the fixing plate 12 is clamped on the upper part of the net frame 4, and the fixing plate 12 can fix the upper half of the net frame 4. Under the cooperation between the fixing plate 12 and the fixing groove 111, the net frame 4 can be fixed on the installation plate 11. The above fixing method is simple to operate and has a good fixing effect. It can quickly connect the net frame 4 and the storage box 1, so that the outlet of the ground cage body is connected with the inlet 13 of the storage box 1, so that the shrimps and crabs captured in the ground cage body can climb to the outlet along the fishing net of the ground cage body, and then enter the storage box 1 from the inlet 13 of the storage box 1, so as to alleviate the problem of the density of shrimps and crabs captured in the ground cage body.

[0037] It is understandable that during the process of capturing shrimps and crabs, a certain amount of water will be placed in the storage box 1, and an aerator will be added. The aerator can provide oxygen to the water in the storage box 1, thereby forming a suitable growth environment for shrimps and crabs in the storage box 1, so that the shrimps and crabs captured by the ground trap body can remain active and healthy in the storage box 1.

[0038] In this embodiment, by providing a storage box 1, the shrimps and crabs in the ground trap body will crawl into the storage box 1 along the fishing net. The storage box 1 has a much larger storage space than the ground trap body, so the above device does not need to frequently take the ground trap body out of the water and then pour out the shrimps and crabs in the ground trap body. This greatly saves manpower and time in the process of catching shrimps and crabs. With this device, when the storage capacity of the storage box 1 reaches the upper limit, the shrimps and crabs in the storage box 1 can be poured out without any operation on the ground trap body. This simplifies the entire harvesting operation and greatly improves the efficiency of the entire harvesting process.

[0039] like Figure 1As shown, the storage box 1 is further provided with a guide plate 14, which is mounted on the mounting plate 11 and arranged on the inner wall of the storage box 1, and a guide groove 15 is arranged on the guide plate 14, and the guide groove 15 is connected to the inlet 13. The guide plate 14 is provided to guide the shrimps and crabs entering the cavity of the storage box 1, and the guide groove 15 is connected to the inlet 13, so that the shrimps and crabs at the outlet of the net frame 4 can sequentially pass through the inlet 13 and the guide groove 15 to enter the cavity of the storage box 1, thereby realizing the storage of the captured shrimps and crabs through the storage box 1. The guide plate 14 can guide the shrimps and crabs entering the storage box 1, avoiding damage to the shrimps and crabs in the net frame 4 when entering the storage box 1.

[0040] like Figure 5 As shown, the guide groove 15 is integrally arranged to be inclined downward from the inner wall of the storage box 1. The downward inclined arrangement makes it easy for shrimps and crabs entering the storage box 1 through the entrance 13 to quickly enter the cavity of the storage box 1 through the guide groove 15, so that the shrimps and crabs will not accumulate on the guide plate 14, thereby improving the efficiency of the shrimps and crabs entering the cavity of the storage box 1.

[0041] The automatic shrimp and crab catching device further comprises a support frame 3. In this embodiment, the support frame 3 is detachably arranged at the bottom of the storage box 1. The detachable arrangement facilitates the storage box 1 to be quickly pulled out of the support frame 3. The weighing device is arranged on the side of the support frame 3 facing the storage box 1. The weighing device is suitable for weighing the shrimps and crabs in the storage box 1, so that the breeding personnel can know the weight of the shrimps and crabs in the storage box 1 at any time, so as to judge whether the shrimps and crabs in the storage box 1 need to be poured out.

[0042] In this embodiment, a plurality of baffles (not shown) may be provided on the support frame 3 , and the plurality of baffles may form a baffle groove, and the storage box 1 may be placed in the baffle groove, thereby improving the stability of the storage box 1 placed on the support frame 3 .

[0043] like Figures 1 to 3 As shown, a plurality of rods 31 are provided on the side of the support frame 3 away from the storage box 1, and the plurality of rods 31 are arranged around the support frame 3. By providing the rods 31, the support frame 3 can be installed on the pond dam or other breeding areas for breeding sugar, thereby improving the stability of the support frame 3.

[0044] like Figures 4 to 6As shown, plug blocks 121 are provided on both sides of the fixing plate 12, and slots 113 cooperating with the plug blocks 121 are provided on the mounting plate 11, and the fixing plate 12 is suitable for being detachably mounted on the top of the mounting plate 11 through the plug blocks 121. By providing the plug blocks 121 and the slots 113, the fixing plate 12 can be effectively installed, so that when the fixing plate 12 is installed with the grid 4, the plug blocks 121 and the slots 113 can limit the fixing plate 12, so that the fixing groove 122 on the fixing plate 12 can be aligned with the upper part of the grid 4, thereby improving the installation accuracy between the fixing plate 12 and the grid 4.

[0045] like Figure 3 and Figure 4 As shown, the insert block 121 is provided with a first mounting hole, the mounting plate 11 is provided with a second mounting hole 114, and the first mounting hole on the insert block 121 inserted into the slot 113 is aligned with the second mounting hole 114. By providing the first mounting hole and the second mounting hole 114, the fixing plate 12 installed on the mounting plate 11 can be fixed, and the fixing effect of the fixing plate 12 on the upper half of the grid 4 is further improved, thereby improving the stability of the grid 4 installed on the storage box 1.

[0046] In this embodiment, the mounting plate 11 can be an arc-shaped structure or a square structure, or even other shapes. The shape of the mounting plate 11 can be selected according to the shape of the grid frame 4 to be installed. If the grid frame 4 is a circular structure, the fixing groove 111 on the mounting plate 11 is an arc-shaped structure, and the size of the arc-shaped fixing groove 111 matches the circular grid frame 4. If the grid frame 4 is a rectangular structure, the fixing groove 111 on the mounting plate 11 also needs to be set to a square structure, and the size matches the grid frame 4 to be fixed.

[0047] In this embodiment, the mounting plate 11 and the storage box 1 may also be a detachable structure. By setting the mounting plate 11 and the storage box 1 as a detachable structure, it is convenient to select a suitable mounting plate 11 according to the structure of the grid frame 4 that needs to be fixed in actual operation, so there is no need to replace the entire storage box 1, and only the corresponding mounting plate 11 needs to be replaced.

[0048] like Figure 6 As shown, the mounting plate 11 is provided with a plurality of groups of stoppers 112, which are arranged at intervals on the mounting plate 11, and each group of stoppers 112 is arranged outside the fixing groove 111, and the stoppers 112 are suitable for limiting the grid 4 in the fixing groove 111. By providing a plurality of groups of stoppers 112, the grid 4 can be limited in the fixing groove 111, thereby improving the stability of the grid 4 installed in the fixing groove 111.

[0049] like Figure 6 to Figure 7As shown, the number of each group of limiting members 112 is two, and a gap is provided between the two limiting members 112, and the grid 4 is suitable for being inserted into the fixing groove 1 111 through the gap. The limiting member 112 is elastic, and when the grid 4 is inserted through the gap, it can be inserted into the fixing groove 1 111 through the gap due to its elasticity, and after the grid 4 is inserted into the fixing groove 1 111, it is blocked at the outside of the grid 4 under the action of its elasticity, and cooperates with the fixing groove 1 111 to fix the grid 4 in the fixing groove 1 111.

[0050] The limiting member 112 is made of rubber and has a certain elasticity, which can ensure that the grid frame 4 will not be damaged when it is inserted, and can also be restored to its original state under its elastic action after insertion to achieve a limiting operation on the grid frame 4 inserted into the fixing groove 111.

[0051] like Figure 8 As shown, the fixing plate 12 is provided with a second fixing groove 122, the second fixing groove 122 faces the first fixing groove 111, and the second fixing groove 122 cooperates with the first fixing groove 111 to limit the position of the grid frame 4. After the grid frame 4 is inserted into the mounting plate 11 through the first fixing groove 111, the fixing plate 12 is installed above the grid frame 4, so that the upper half of the grid frame 4 is inserted into the second fixing groove 122, thereby the grid frame 4 can be limited and fixed in the direction of mutual cooperation between the fixing plate 12 and the mounting plate 11, thereby improving the stability of the installation between the grid frame 4 and the storage box 1.

[0052] See also Figure 5 and Fig. 9 As shown, the weighing device includes a weighing sensor 21, a control unit 22 and a display light 23. The weighing sensor 21 is arranged at the bottom of the storage box 1, and the control unit 22 and the display light 23 are both installed on the storage box 1. The weighing sensor 21 converts gravity into an electrical signal and transmits it to the control unit 22. The control unit 22 receives the electrical signal and controls the light of the display light 23 to change. Among them, the weighing sensor 21 is a device that converts a mass signal into a measurable electrical signal output, and then the control unit 22 receives the electrical signal and controls the light of the display light 23 to change. In this embodiment, when the weight weighed by the weighing sensor 21 does not exceed the set value, the display light 23 can be green. When the weight weighed by the weighing sensor 21 exceeds the set value, the control unit 22 can control the display light 23 to turn red. Therefore, in the actual process, the farmer only needs to observe whether the display light 23 on the storage box 1 turns red to determine whether the shrimps and crabs in the storage box 1 are full, and there is no need to walk to the side of each storage box 1 to observe, thereby improving the practicality of the entire device.

[0053] In the actual weighing process, the storage box 1 is generally filled with the required water first, and then the weighing sensor 21 will record an initial data, and then the weighing sensor 21 will measure a real-time data at a certain interval, and the interval time can be adjusted according to the actual situation. The weight of the shrimps and crabs in the storage box 1 can be calculated by the difference between the two data. In this process, the water in the storage box 1 will not be replaced, so the quality of the water in the storage box will not change. If the water needs to be replaced, the shrimps and crabs in the storage box 1 can be poured out first, and then the water in the storage box 1 can be replaced.

[0054] It is understandable that, in actual application, the color of the display light 23 can be selected according to actual conditions.

[0055] The control unit 22 may be a CPU chip.

[0056] In addition, a mobile terminal (such as monitoring software) can be set up and connected to the control unit 22 through the mobile terminal. After receiving the signal, the control unit 22 can also send a prompt to the farmer through the mobile terminal, so that the farmer can monitor the density of shrimps and crabs in the storage box 1 through the mobile terminal.

[0057] The above describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic shrimp and crab catching device, comprising a ground cage body, one end of which is provided with a fishing net and a net frame (4) for supporting the fishing net, an outlet for dumping shrimp and crabs is formed between the net frame (4) and the fishing net, characterized in that: The shrimp and crab automatic capture device also includes A storage box (1), wherein a mounting plate (11) and a fixing plate (12) are provided on one side of the storage box (1), and the fixing plate (12) is detachably mounted on the storage box (1); the mounting plate (11) and the fixing plate (12) are both hollow structures, and an entrance (13) for shrimps and crabs to enter the storage box (1) is formed between the mounting plate (11) and the fixing plate (12); a fixing groove (111) is provided on the mounting plate (11), and the fixing groove (111) is used to clamp the net frame (4); the fixing plate (12) is arranged above the fixing groove (111), and the fixing plate (12) fixes the net frame (4) mounted on the fixing groove (111) to the entrance (13); A weighing device comprises a weighing sensor (21), a control unit (22) and a display light (23); the weighing sensor (21) is arranged at the bottom of the storage box (1); the control unit (22) and the display light (23) are both installed on the storage box (1); the weighing sensor (21) converts gravity into an electrical signal and transmits it to the control unit (22); the control unit (22) receives the electrical signal and controls the light of the display light (23) to change.

2. The automatic shrimp and crab catching device according to claim 1, characterized in that: The automatic shrimp and crab catching device further comprises a support frame (3), wherein the support frame (3) is mounted on the bottom of the storage box (1), and the weighing sensor (21) is arranged on a side facing the storage box (1); a plurality of insertion rods (31) are arranged on a side of the support frame (3) away from the storage box (1), and the plurality of insertion rods (31) are arranged around the support frame (3).

3. The automatic shrimp and crab catching device according to claim 1, characterized in that: The mounting plate (11) is an arc-shaped structure or a square structure.

4. The automatic shrimp and crab catching device according to claim 1, characterized in that: The mounting plate (11) is provided with a plurality of groups of limiting members (112), which are arranged on the mounting plate (11) at intervals, and each group of the limiting members (112) is arranged on the outside of the fixing groove one (111), and the limiting members (112) are suitable for limiting the grid (4) in the fixing groove one (111).

5. The automatic shrimp and crab catching device according to claim 4, characterized in that: The number of the limiting members (112) in each group is two, a space is provided between the two limiting members (112), the grid (4) is inserted into the fixing groove 1 (111) through the space, and the limiting members (112) are rubber limiting members (112).

6. The automatic shrimp and crab catching device according to claim 1, characterized in that: Insert blocks (121) are provided on both sides of the fixing plate (12), and slots (113) cooperating with the insert blocks (121) are provided on the mounting plate (11), and the fixing plate (12) is suitable for being detachably mounted on the top of the mounting plate (11) through the insert blocks (121).

7. The automatic shrimp and crab catching device according to claim 1, characterized in that: The fixing plate (12) is provided with a second fixing groove (122), the second fixing groove (122) faces the first fixing groove (111), and the second fixing groove (122) cooperates with the first fixing groove (111) to limit the position of the grid frame (4).

8. The automatic shrimp and crab catching device according to claim 6, characterized in that: The insert block (121) is provided with a first mounting hole, the mounting plate (11) is provided with a second mounting hole (114), and the first mounting hole on the insert block (121) inserted into the slot (113) is aligned with the second mounting hole (114).

9. The automatic shrimp and crab catching device according to claim 1, characterized in that: The storage box (1) is further provided with a guide plate (14), the guide plate (14) being arranged on the inner wall of the storage box (1), and the guide plate (14) being provided with a guide groove (15), the guide groove (15) being connected to the inlet (13).

10. The automatic shrimp and crab catching device according to claim 9, characterized in that: The guide plate (14) is integrally arranged to be tilted downward from the inner wall of the storage box (1).

Images