Salmon counting and weighing device
By designing a salmon counting and weighing device, the fish passage and weighing are controlled by components of the fish channel and weighing pool, which solves the problems of substandard fish being mixed in and overlapping counts during the weighing process, and achieves more accurate weighing and counting.
Patent Information
- Application Number
- CN202520374370.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing technology is prone to mixing in substandard individuals when weighing salmon, and overlapping may occur during the counting process, leading to inaccurate average weight results.
A salmon counting and weighing device was designed, including a storage tank, a fish passage, a weighing tank, a fish deflector, a sensor, and a telescopic cylinder. The sensor records the number and length of the fish, and the telescopic cylinder controls the passage between the fish passage and the weighing tank to ensure that only one fish passes through at a time. The fish is then weighed in the weighing tank using a fish cage.
This reduces counting errors, improves the accuracy of average salmon weight results, ensures that each fish meets quality standards, and enhances the precision of the weighing process.
Smart Images
Figure CN223769611U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of salmon farming technology, specifically a salmon counting and weighing device. Background Technology
[0002] Salmon have a laterally compressed body, a raised back, sharp teeth, small scales, and a silvery-gray color. During the spawning season, they develop orange stripes. They are mainly distributed in the waters where the Atlantic, Pacific, and Arctic Oceans meet. They are cold-water, highly migratory fish. Commercially available salmon fry typically range in length from 6 to 8 centimeters. Their flesh is firm, delicious, pink, and elastic. When selling salmon fry, it is necessary to count the number of salmon. Currently, the common method for counting salmon is by weighing. This involves randomly selecting a number of fish from the rearing tank, weighing them, and then calculating the average weight of each individual salmon. Next, a portion of the salmon fry are scooped out of the breeding pond using a fish sieve. Workers then transport the scooped salmon fry and the fish sieve to a weighing scale for weighing. The total weight is divided by the average weight of a single salmon fry to determine the number of salmon fry in the fish sieve. After weighing, the fish sieve and fish are transported together to a specialized salmon transport vehicle for transport and sale. However, during the weighing process, substandard individuals may be mixed in. Furthermore, overlapping fish during counting can lead to errors in the count, affecting the average weight result. Therefore, it is necessary to develop a salmon counting and weighing device that can reduce counting errors and improve the accuracy of the average salmon weight result. Utility Model Content
[0003] To address the above technical problems, this utility model provides a salmon counting and weighing device that can reduce counting errors and improve the accuracy of the average salmon weight result. This solves the problems that may occur during the existing weighing process, where substandard individuals may be mixed in, and during the counting process, overlapping of fish may also cause counting errors, thus affecting the average salmon weight result.
[0004] To solve the above-mentioned technical problems, the present invention provides a salmon counting and weighing device, comprising a storage tank, a fish passage fixedly connected to one side of the storage tank, and the bottom of the other end of the fish passage fixedly connected to a weighing tank. A workbench is fixedly connected to the bottom of the storage tank. A fish deflector is fixedly connected to the side of the storage tank opposite to the fish passage. A first sensor and a second sensor are fixedly connected at intervals on the fish passage. A support is provided on one side of the storage tank, and a first telescopic cylinder is fixedly connected below the support. A first baffle is fixedly connected to the output end of the first telescopic cylinder. A counter is installed on the first telescopic cylinder. A fish cage is detachably connected inside the weighing tank, and hanging rings are fixedly connected to both sides of the fish cage. A second telescopic cylinder is provided on one side of the weighing tank, and a support plate is fixedly connected to the output end of the second telescopic cylinder. A hanging scale is fixedly connected below the support plate and is located directly above the weighing tank.
[0005] Furthermore, the fish passage inlet aperture can only allow one fish to pass through at a time.
[0006] Furthermore, a cover plate is hinged to one side of the fish cage in the front-to-back direction, and a long groove is opened on the fish cage to connect the fish passage. A protective plate that blocks the long groove is fixedly connected to the cover plate.
[0007] Furthermore, a third telescopic cylinder is fixedly connected below the support plate, and a second baffle is fixedly connected to the output end of the third telescopic cylinder. The second baffle is located at the fish passage outlet.
[0008] This utility model has the following advantages compared with the prior art:
[0009] This invention can record the number of times the first baffle falls, i.e. the number of salmon fry entering the fish passage, by installing a counter on the first telescopic cylinder. By setting the first and second sensors at intervals on the fish passage, the number of salmon fry can be confirmed a second time while screening the body length of the salmon fry. By setting fish cages in the weighing pool, it can provide convenience for weighing with a hanging scale. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 This is a schematic diagram of the fish cage structure of this utility model.
[0012] Figure 3 This is a schematic diagram of the cover plate structure of this utility model.
[0013] In the diagram: 1. Storage tank, 2. Fishway, 3. Weighing tank, 4. Support frame, 5. First telescopic cylinder, 6. First baffle, 7. Second telescopic cylinder, 8. Support plate, 9. Hanging scale, 10. Third telescopic cylinder, 11. Second baffle, 12. First sensor, 13. Second sensor, 14. Fish cage, 15. Cover plate, 16. Workbench, 17. Fish repellent, 18. Hanging ring. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings.
[0015] like Figure 1 , 2 A salmon counting and weighing device as shown in Figure 3 includes a storage tank 1, a fish passage 2 fixedly connected to one side of the storage tank 1, and a weighing tank 3 fixedly connected to the bottom of the other end of the fish passage 2. A workbench 16 is fixedly connected to the bottom of the storage tank 1. To facilitate driving salmon into the fish passage 2, a fish repellent 17 is fixedly connected to the side of the storage tank 1 opposite to the fish passage 2. A first sensor 12 and a second sensor 13 are fixedly connected at intervals on the fish passage 2. To limit the number of salmon entering the fish passage 2 per unit time, a support 4 is provided on one side of the storage tank 1, and a weight is fixed below the support 4. A first telescopic cylinder 5 is connected, and a first baffle is fixedly connected to the output end of the first telescopic cylinder 5. In order to record the number of salmon entering the fish passage 2, a counter is installed on the first telescopic cylinder 5. A fish cage 14 is detachably connected to the weighing pool 3 by a buckle. Hanging rings 18 are fixedly connected to both sides of the fish cage 14. In order to prevent salmon that do not meet the body length requirements from entering the weighing pool 3, a second telescopic cylinder 7 is set on one side of the weighing pool 3. A support plate 8 is fixedly connected to the output end of the second telescopic cylinder 7. A hanging scale 9 is fixedly connected below the support plate 8. The hanging scale 9 is located directly above the weighing pool 3.
[0016] To prevent multiple fish from entering fishway 2 at the same time and affecting the accuracy of counting, the entrance aperture of fishway 2 can only allow one fish to pass through at a time.
[0017] To facilitate obtaining the total weight of the salmon in the weighing pool 3 and to make it convenient to weigh them using the hanging scale 9, a cover plate 15 is hinged to one side of the fish cage 14 in the front-to-back direction. The fish cage 14 has a long groove for connecting the fish passage 2, and a protective plate that blocks the long groove is fixedly connected to the cover plate 15.
[0018] To prevent the cover plate 15 from being affected by the lifting ring 18 during the closing process, the lifting ring 18 is made of soft material.
[0019] In order to prevent salmon that do not meet the body length requirements from entering the weighing pool 3, a third telescopic cylinder 10 is fixedly connected to the bottom of the support plate 8. A second baffle 11 is fixedly connected to the output end of the third telescopic cylinder 10. The second baffle 11 is located at the outlet of the fish passage 2.
[0020] The working process of this embodiment is as follows:
[0021] In operation, the fish repellent 17 drives the salmon towards the fishway 2. Once a salmon fry enters the fishway 2, the fish repellent 17 is temporarily deactivated, stopping the repelling of the salmon fry. Simultaneously, the output end of the first telescopic cylinder 5 is lowered, causing the first baffle 6 to block the entrance of the fishway 2. After entering the fishway 2, the salmon fry move towards the weighing pool 3. During this process, the salmon's head first contacts the first sensor 12, and the time is recorded as T1. Then, the tail leaves the first sensor 12, and the time is recorded as T2. Immediately afterwards... The time when the fish head comes into contact with the second sensor 13 is recorded as T3, and the distance between the first sensor 12 and the second sensor 13 is recorded as L1. Let V represent the average swimming speed of the salmon, then V = L / (T3-T1), and the body length of the salmon L2 = V×(T2-T1). If the salmon fry reach the required length, they can smoothly pass through the fish passage 2 into the weighing pool 3. If the length does not meet the requirements, the third telescopic cylinder 10 is controlled to block the exit of the fish passage 2 with the second baffle 11 until the substandard fish are removed. After all the salmon fry in the storage pool 1 have entered the weighing pool 3, the cover plate 15 is closed to seal the fish cage 14. Then, a long stick is passed through the hanging rings 18 on both sides of the fish cage 14, and the hook of the hanging scale 9 is hung on the long stick. The second telescopic cylinder 7 is controlled to lift the hanging scale 9 and the fish cage 14 to weigh the salmon fry.
Claims
1. A salmon counting and weighing device comprising a holding tank (1), characterized in that: The storage pool (1) one side fixedly connected with fishway (2), the fishway (2) the other end bottom and weighing pool (3) fixedly connected, the storage pool (1) bottom fixedly connected with workbench (16), the storage pool (1) with the fishway (2) opposite side fixedly connected with fish expeller (17), the fishway (2) on interval fixedly connected with first inductor (12), second inductor (13), the storage pool (1) one side is provided with support (4), the support (4) below fixedly connected with first telescopic cylinder (5), the first telescopic cylinder (5) output end fixedly connected with first baffle, the first telescopic cylinder (5) on mounting counter, the weighing pool (3) inside detachably connected with fish cage (14), the fish cage (14) both sides fixedly connected with lifting ring (18), the weighing pool (3) one side is provided with second telescopic cylinder (7), the second telescopic cylinder (7) output end fixedly connected with support plate (8), the support plate (8) below fixedly connected with overhead scale (9), the overhead scale (9) is located the weighing pool (3) directly above.
2. Salmon counting and weighing device according to claim 1, characterized in that: The fishway (2) entrance aperture single only can pass through a fish.
3. Salmon counting and weighing device according to claim 1, characterized in that: The fish cage (14) above front and back direction one side hinged with cover plate (15), the fish cage (14) is opened with the long groove of the fishway (2) on the contact, the cover plate (15) is fixedly connected with the baffle of shielding long groove.
4. The salmon inventory weighing device according to claim 1, characterized in that: The support plate (8) below fixedly connected with third telescopic cylinder (10), the third telescopic cylinder (10) output end fixedly connected with second baffle (11), the second baffle (11) is located the fishway (2) export.