A non-destructive collection device for freshwater crustacean information

Abstract

The present invention relates to a non-destructive collection device for freshwater crustacean information. The collection device comprises a connecting rod; an upper cover and a lower cover arranged at both ends of the connecting rod, wherein the upper cover and the lower cover are respectively provided with a first cavity and a second cavity, and the upper cover and the lower cover can form a complete shell by moving along the connecting rod; a cover plate arranged on the connecting rod; a plurality of baits arranged on the cover plate for luring crustaceans; a trigger mechanism arranged on the connecting rod for driving the upper cover and the lower cover to approach each other; the present invention can close automatically after collecting animals of a certain weight, and can float to the surface of the water automatically, without the need to salvage them, reducing the difficulty and risk of manual operation, and can also intuitively obtain the weight information of the animals inside, without the need for long waiting, saving working time.

Description

Technical Field

[0001] The invention belongs to the technical field of animal information collection, and in particular relates to a non-destructive collection device for freshwater crustacean information. Background Art

[0002] Crustaceans are named after the "armor" on their bodies. Most crustaceans live in the ocean, and a few live in fresh water and on land. Crustaceans such as shrimps and crabs have five pairs of legs, four of which are used for crawling and swimming, and one pair of chelicerae for defense and hunting. There are many types of crustaceans, about 26,000 species. Crustaceans such as shrimps and crabs are rich in nutrients, delicious, and have high economic value. Some crustaceans are also bait for economic animals such as fish.

[0003] There are also some technical solutions for collecting crustacean information in the prior art, such as a Chinese patent with application number CN201420462718.8, which discloses a crustacean grading fishing cage, which can sort crustaceans of different specifications and collect them in different net bags, thereby reducing the workload of manual sorting and collection, improving the efficiency of sorting and collection, and reducing labor costs; using the cage to catch crustaceans reduces the mechanical damage to crustaceans caused by manual sorting and reduces economic losses.

[0004] However, the ground cage in the patent needs to be put away manually, which is inconvenient to use, and the number of animals in the ground cage cannot be intuitively obtained, which requires a certain amount of waiting, causing inconvenience to the work of collecting animal information. Summary of the invention

[0005] The purpose of the present invention is to provide a non-destructive collection device for freshwater crustacean information in order to solve the problems raised in the above background technology.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0007] A non-destructive collection device for freshwater crustacean information, comprising:

[0008] Connecting rod;

[0009] An upper cover and a lower cover are arranged at both ends of the connecting rod, wherein the upper cover and the lower cover are respectively provided with a first cavity and a second cavity, and the upper cover and the lower cover can be moved along the connecting rod to form a complete shell;

[0010] A cover plate disposed on the connecting rod;

[0011] A number of baits provided on the cover for attracting crustaceans;

[0012] A trigger mechanism provided on the connecting rod for driving the upper cover and the lower cover to approach each other;

[0013] A plurality of springs disposed between the upper cover and the lower cover for accelerating the upper cover and the lower cover to approach each other;

[0014] A top plate is arranged on the connecting rod, wherein a cavity for storing compressed gas is arranged inside the connecting rod, and the top plate can cut off the gas in the cavity in water;

[0015] Crustaceans in the water are lured by the bait and enter the cover plate on the lower cover. When the weight of the animals on the cover plate reaches the set value, the trigger mechanism is activated, so that the upper cover and the lower cover are moved closer to each other under the action of the spring, and then the upper cover and the lower cover are in contact. After the upper cover and the lower cover are in contact, the animals are located in the No. 1 cavity and the No. 2 cavity. During the movement of the upper cover along the connecting rod, the cavity on the connecting rod is exposed to the upper cover, and the compressed gas in the cavity enters the water and moves upward. The gas moving upward is intercepted by the top plate, forming bubbles at the top plate, thereby increasing the overall buoyancy of the collection device, and then the top plate is exposed to the water surface.

[0016] Preferably, a No. 1 groove is provided on the connecting rod, and the trigger mechanism includes a gear and a movable plate arranged at the No. 1 groove, the movable plate is provided with a plurality of tooth grooves meshing with the gear, the movable plate is used to limit the upper cover from approaching the lower cover, the gear is installed on the connecting rod through a rotating shaft, the rotating shaft is provided with a coil spring for driving the rotating shaft to rotate, a connecting rope is wound on the rotating shaft, and a ring is provided on the connecting rod at one end of the connecting rope away from the device, and the ring is located on the side of the cover plate away from the upper cover.

[0017] Preferably, a guide rod is provided between the bait and the cover plate, the guide rod extends into the No. 2 cavity, and one end of the guide rod located in the No. 2 cavity is provided with a mounting plate sleeved on the connecting rod, a No. 1 baffle is provided on the mounting plate, and a No. 2 baffle is provided on the upper cover, the No. 1 baffle and the No. 2 baffle prevent foreign objects from entering the No. 1 cavity and the No. 2 cavity in the horizontal direction, and the No. 1 baffle and the No. 2 baffle drive the mounting plate to move when the upper cover and the lower cover are close to each other.

[0018] Preferably, the No. 2 baffle net includes a first section, a second section and a third section, the first section is located on the moving trajectory of the No. 1 baffle net, the second section extends toward the direction of the connecting rod, the third section extends toward the direction close to the upper cover and the end of the third section is at a distance from the upper cover that is less than the distance from the first section to the upper cover.

[0019] Preferably, the top plate is an arc-shaped structure, and the edge of the top plate extends toward the lower cover.

[0020] The beneficial effects of the present invention are:

[0021] The invention can close automatically after collecting animals of a certain weight, and can float to the surface automatically, without the need to salvage them, thus reducing the difficulty and risk of manual operation, and can also intuitively obtain the weight information of the animals inside, without the need for long waiting, thus saving working time. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0024] Figure 3 It is a schematic diagram of the positional relationship between the top plate and the upper cover in the floating state in the present invention.

[0025] In the figure: 1. connecting rod; 2. upper cover; 3. lower cover; 4. cavity No. 1; 5. cavity No. 2; 6. cover plate; 7. bait; 8. spring; 9. top plate; 10. cavity; 11. slot No. 1; 12. gear; 13. moving plate; 14. connecting rope; 15. ring; 16. guide rod; 17. mounting plate; 18. retaining net No. 1; 19. retaining net No. 2; 20. first section; 21. second section; 22. third section. DETAILED DESCRIPTION

[0026] The present application is described in further detail below. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0027] Example 1

[0028] like Figure 1-3 As shown, a non-destructive collection device for freshwater crustacean information comprises:

[0029] Connecting rod 1;

[0030] An upper cover 2 and a lower cover 3 are arranged at both ends of the connecting rod 1, wherein the upper cover 2 and the lower cover 3 are respectively provided with a first cavity 4 and a second cavity 5, and the upper cover 2 and the lower cover 3 can be moved along the connecting rod 1 to form a complete shell;

[0031] A cover plate 6 provided on the connecting rod 1;

[0032] A plurality of baits 7 provided on the cover plate 6 for attracting crustaceans;

[0033] A trigger mechanism provided on the connecting rod 1 for driving the upper cover 2 and the lower cover 3 to approach each other;

[0034] A plurality of springs 8 disposed between the upper cover 2 and the lower cover 3 for accelerating the upper cover 2 and the lower cover 3 to approach each other;

[0035] A top plate 9 is arranged on the connecting rod 1, and a cavity 10 for storing compressed gas is arranged inside the connecting rod 1. The top plate 9 can cut off the gas in the cavity 10 in water, and the pressure of the compressed gas is greater than 2 atmospheres.

[0036] As a further solution of the present invention, a No. 1 groove 11 is provided on the connecting rod 1, and the trigger mechanism includes a gear 12 and a movable plate 13 arranged at the No. 1 groove 11, and the movable plate 13 is provided with a plurality of tooth grooves meshing with the gear 12, and the movable plate 13 is used to limit the upper cover 2 from approaching the lower cover 3, and the gear 12 is installed on the connecting rod 1 through a rotating shaft, and a coil spring for driving the rotating shaft to rotate is provided on the rotating shaft, and a connecting rope 14 is wound around the rotating shaft, and a ring 15 arranged on the connecting rod 1 is provided at one end of the connecting rope 14 away from the device, and the ring 15 is located on the side of the cover plate 6 away from the upper cover 2.

[0037] As a further solution of the present invention, the top plate 9 is an arc-shaped structure, and the edge of the top plate 9 extends toward the lower cover 3 .

[0038] In the above embodiment, the present invention is placed at the collection site and sinks to the bottom of the water under the action of its own gravity. When the crustaceans in the water enter the cover plate 6 on the lower cover 3 under the lure of the bait 7, the cover plate 6 is pressed downward. When the total weight of the animals on the cover plate 6 reaches the set weight, the cover plate 6 is lowered by a certain distance. When the cover plate 6 is lowered, the collar 15 is driven away from the upper cover 2, so that the connecting rope 14 is pulled. The connecting rope 14 drives the rotating shaft to rotate, so that the gear 12 rotates, so that the moving plate 13 moves. During the movement of the moving plate 13, it is separated from the upper cover 2, and the upper cover 2 and the lower cover 3 are brought close to each other under the action of the spring 8, so that the upper cover 2 and the lower cover 3 are in contact. After the upper cover 2 and the lower cover 3 are in contact, the animals are located in the first cavity 4 and the second cavity 5. During the movement of the upper cover 2 along the connecting rod 1, the cavity 10 on the connecting rod 1 is exposed from the upper cover 2, and the gas at the cavity 10 enters the water and moves upward. The gas moving upward is intercepted by the top plate 9, and a large bubble is formed at the top plate 9. According to the calculation formula of buoyancy, the overall buoyancy of the present invention increases. The increase in buoyancy causes the present invention to move upward, so that the top plate 9 is exposed to the water surface. The staff takes the present invention out of the water, moves the upper cover 2, and takes out the animal for measurement, thereby obtaining the animal information.

[0039] As a further solution of the present invention, a guide rod 16 is provided between the bait 7 and the cover plate 6, and the guide rod 16 extends into the No. 2 cavity 5. One end of the guide rod 16 located in the No. 2 cavity 5 is provided with a mounting plate 17 sleeved on the connecting rod 1, and a No. 1 blocking net 18 is provided on the mounting plate 17. A No. 2 blocking net 19 is provided on the upper cover 2. The No. 1 blocking net 18 and the No. 2 blocking net 19 prevent foreign objects from entering the No. 1 cavity 4 and the No. 2 cavity 5 in the horizontal direction. The No. 1 blocking net 18 and the No. 2 blocking net 19 drive the mounting plate 17 to move when the upper cover 2 and the lower cover 3 are close to each other.

[0040] As a further solution of the present invention, the No. 2 baffle net 19 includes a first section 20, a second section 21 and a third section 22. The first section 20 is located on the moving trajectory of the No. 1 baffle net 18, the second section 21 extends toward the direction of the connecting rod 1, and the third section 22 extends in a direction close to the upper cover 2, and the end of the third section 22 is at a distance from the upper cover 2 that is less than the distance from the first section 20 to the upper cover 2.

[0041] In the above embodiment, the No. 1 blocking net 18 and the No. 2 blocking net 19 form a barrier in the horizontal direction, so that foreign objects in the water are isolated outside the upper cover 2 and the lower cover 3 after contacting the No. 1 blocking net 18 and the No. 2 blocking net 19, thereby avoiding affecting the collection of animals. When the upper cover 2 and the lower cover 3 are in contact with each other, the No. 1 blocking net 18 squeezes the No. 2 blocking net 19, so that the No. 2 blocking net 19 drives the mounting plate 17 to move downward, thereby causing the connecting rod 1 on the mounting plate 17 and the bait 7 on the connecting rod 1 to move relative to the cover plate 6. That is, when the upper cover 2 and the lower cover 3 are in contact, the bait 7 enters under the cover plate 6, and the animals cannot eat the bait 7, thereby reducing the loss of the bait 7.

[0042] Among them, the second barrier net 19 is in a Z shape, so that the first barrier net 18 can contact the second barrier net 19 when moving, thereby driving the second barrier net 19 to move. At the same time, there is a channel between the second barrier net 19 and the first barrier net 18 to ensure the normal passage of animals, and the channel has a screening function for foreign objects, that is, foreign objects cannot enter the second cavity 5 through the channel.

[0043] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A non-destructive collection device for freshwater crustacean information, characterized in that: include: Connecting rod (1); An upper cover (2) and a lower cover (3) are arranged at both ends of the connecting rod (1), wherein a first cavity (4) and a second cavity (5) are respectively arranged on the upper cover (2) and the lower cover (3), and the upper cover (2) and the lower cover (3) can be moved along the connecting rod (1) to form a complete shell; A cover plate (6) disposed on the connecting rod (1); A plurality of baits (7) arranged on the cover plate (6) for attracting crustaceans; A trigger mechanism provided on the connecting rod (1) and used for driving the upper cover (2) and the lower cover (3) to move closer to each other; A plurality of springs (8) disposed between the upper cover (2) and the lower cover (3) and used to accelerate the upper cover (2) and the lower cover (3) to move closer to each other; A top plate (9) is arranged on the connecting rod (1), wherein a cavity (10) for storing compressed gas is arranged inside the connecting rod (1), and the top plate (9) can cut off the gas in the cavity (10) in water; Crustaceans in the water are lured by the bait (7) to enter the cover plate (6) on the lower cover (3). When the weight of the animal on the cover plate (6) reaches a set value, the trigger mechanism is activated, so that the upper cover (2) and the lower cover (3) are moved closer to each other under the action of the spring (8), thereby causing the upper cover (2) and the lower cover (3) to come into contact with each other. After the upper cover (2) and the lower cover (3) come into contact, the animal is located in the first cavity (4) and the second cavity (5). During the movement of the upper cover (2) along the connecting rod (1), the cavity (10) on the connecting rod (1) is exposed from the upper cover (2). The compressed gas in the cavity (10) enters the water and moves upward. The gas moving upward is intercepted by the top plate (9), and bubbles are formed at the top plate (9), thereby increasing the buoyancy of the entire collection device, thereby causing the top plate (9) to be exposed from the water surface. The connecting rod (1) is provided with a first groove (11), and the trigger mechanism comprises a gear (12) and a movable plate (13) arranged at the first groove (11), the movable plate (13) being provided with a plurality of tooth grooves meshing with the gear (12), the movable plate (13) being used to limit the upper cover (2) from approaching the lower cover (3), the gear (12) being mounted on the connecting rod (1) via a rotating shaft, the rotating shaft being provided with a coil spring for driving the rotating shaft to rotate, a connecting rope (14) being wound around the rotating shaft, the connecting rope (14) being provided with a collar (15) arranged on the connecting rod (1) at one end away from the device, the collar (15) being located on a side of the cover plate (6) away from the upper cover (2).

2. The non-destructive collection device for freshwater crustacean information according to claim 1, characterized in that: A guide rod (16) is provided between the bait (7) and the cover plate (6), and the guide rod (16) extends into the No. 2 cavity (5). One end of the guide rod (16) located in the No. 2 cavity (5) is provided with a mounting plate (17) sleeved on the connecting rod (1), and a No. 1 blocking net (18) is provided on the mounting plate (17). A No. 2 blocking net (19) is provided on the upper cover (2). The No. 1 blocking net (18) and the No. 2 blocking net (19) prevent foreign matter from entering the No. 1 cavity (4) and the No. 2 cavity (5) in the horizontal direction. When the upper cover (2) and the lower cover (3) are close to each other, the No. 1 blocking net (18) and the No. 2 blocking net (19) drive the mounting plate (17) to move.

3. A non-destructive collection device for freshwater crustacean information according to claim 2, characterized in that: The second retaining net (19) comprises a first section (20), a second section (21) and a third section (22), wherein the first section (20) is located on the moving track of the first retaining net (18), the second section (21) extends in the direction of the connecting rod (1), and the third section (22) extends in the direction close to the upper cover (2), and the distance between the end of the third section (22) and the upper cover (2) is smaller than the distance between the first section (20) and the upper cover (2).

4. The non-destructive collection device for freshwater crustacean information according to claim 3, characterized in that: The top plate (9) is an arc-shaped structure, and the edge of the top plate (9) extends towards the lower cover (3).

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