A fish catch weighing system and weighing method thereof

Abstract

The present invention provides a fish catch weighing system and weighing method thereof, comprising a lifting device, an electronic scale driven by the lifting device to achieve vertical movement, and a transparent weighing tank tilted and supported by a fixed support plate at the top of the lifting device. A temporary holding pool is provided below the bottom end of the tilted weighing tank. The top and both ends of the weighing tank are open. A left baffle and a right baffle are axially slidably provided in the weighing tank, with edges abutting against the inner wall thereof. Openings are provided at both ends of the weighing tank for the left and right baffles to move out of the weighing tank. Left and right background plates with length scales are provided on opposite side walls of the left and right baffles, respectively, and the left and right background plates are arranged in an alternating manner. A mounting base for weighing is provided on the top of the electronic scale. The present invention has the effects of extending the service life of the electronic scale, reducing the pulling force required by the operator, and preventing the death of fish caused by prolonged out-of-water use.

Description

Technical Field

[0001] The present invention relates to the technical field of fish catch weighing, and in particular to a fish catch weighing system and a fish catch weighing method. Background Art

[0002] The ecological compensation work for the collection, transportation and release of fish from domestic hydropower stations or reservoir dams has just been launched. At present, the sorting, counting and weighing of the collected fish have not been automated or intelligent, and the methods are relatively primitive.

[0003] Existing weighing tools include a weighing box and an electronic scale. The weighing box has a transparent side wall with a length scale. Inside the weighing box, a clamp that slides relative to the transparent side wall is installed to clamp the fish straight. The weighing process requires first transferring the fish cage into a water tank, then manually or using a scoop net to remove the fish from the water and transfer it to the weighing box after taring. The length is measured using the scale on the weighing box, the weight is measured using the electronic scale, and then the fish is transferred manually or using a scoop net to a water tank or temporary holding pond. Such frequent operations and repeated stimulation of the fish often directly lead to injury or even death of the fish. If not handled quickly for a long time, the fish out of water may also die from lack of oxygen.

[0004] Moreover, the existing weighing tools will repeatedly impact the electronic scale when weighing fish continuously, resulting in a reduced service life of the electronic scale, and the repeated release and collection of fish will increase the labor intensity of the staff. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention provides a fish catch weighing system and a weighing method thereof, which solves the problems in the existing technology that the process of releasing and collecting fish is cumbersome, resulting in high labor intensity for workers, causing fish to die out of water, and continuous impact on the electronic scale, which shortens the service life of the electronic scale.

[0006] According to an embodiment of the present invention, a fish catch weighing system includes a lifting device, an electronic scale driven by the lifting device to achieve vertical movement, a transparent weighing tank tilted by a fixed support plate on the top of the lifting device, an I-shaped bracket placed in the weighing tank, and a fish trough connected to the top of the tilted weighing tank, a temporary holding pool is provided below the bottom end of the tilted weighing tank, the top and both ends of the weighing tank are open, the I-shaped bracket includes a connecting rod and baffles vertically connected to both ends of the connecting rod, and the edge of the baffle at the left end is in contact with the inner wall of the weighing tank, a background plate is vertically provided at the bottom of the connecting rod, a transparent measuring electronic scale is provided at the bottom of the side wall of the weighing tank, and a mounting seat for weighing is provided at the top.

[0007] Preferably, the bottom of the weighing tank is an arc-shaped plate, the two side walls of the weighing tank are inclined plates and respectively connected to both sides of the arc-shaped plate, and a rubber layer is provided on the inner wall of the fixed support plate.

[0008] Preferably, the weighing tank is made of glass or acrylic plate, and the bottom of the weighing tank is bent by direct hot bending or thermoforming.

[0009] Preferably, a movable support plate is fixedly provided on the mounting seat, and the movable support plate is located directly below the weighing tank. The bottom of the movable support plate is arc-shaped and can fit with the bottom wall of the weighing tank.

[0010] Preferably, the movable support plate includes an arc-shaped plate at the bottom and an inclined plate connecting the two ends of the arc-shaped plate. The angle between the two inclined plates in the movable support plate is greater than the angle between the two side walls of the weighing groove. A clamping rod is slidably provided on the inclined plate, and the clamping rod passes through the inclined plate vertically. A spring is provided on the clamping rod, and one end of the spring is connected to the clamping rod, and the other end is connected to the inclined plate.

[0011] Preferably, a roller is mounted on the end of the clamping rod for horizontal rotation, and the roller is located on the inner side of the movable support plate.

[0012] Preferably, the mounting base is detachably placed on the electronic scale, and a sleeve for being sleeved on the sensor column on the top of the electronic scale is provided at the bottom of the mounting base.

[0013] Preferably, the inner wall of the fish tank can be fitted with the outer wall of the weighing tank, and the inner bottom of the fish tank is provided with a waterproof cushion layer.

[0014] A method for weighing fish catches, comprising the following steps: Step 1: peeling, assembling the parts required for weighing a weighing trough on the weighing trough, placing the weighing trough on a fixed support plate, assembling the mounting base on the electronic scale, starting the lifting device, driving the electronic scale to move upward, during the movement of the electronic scale, the mounting base contacts the bottom wall of the weighing trough and pushes the weighing trough upward, after the weighing trough is separated from the fixed support plate, operating the electronic scale to perform zeroing, and completing the tare; Step 2: measuring, controlling the lifting device to move the electronic scale downward, resetting the weighing trough, after achieving symmetrical support of the measuring trough on the fixed support plate, lifting the left end baffle of the I-shaped bracket, and allowing the head end of the fish to be measured to slide from the fish trough into the weighing trough and reach the right end baffle, straightening the fish body so that the fish body and the weighing trough are in the same direction, taking photos and recording with a camera through the background plate and the transparent scale at the bottom of the side wall of the fish trough, and completing the measurement; Step 3: Weighing, control the lifting device to drive the electronic scale to move upward, and lift the weighing trough through the mounting base, so that the weighing trough is separated from the fixed support plate, record the reading of the electronic scale, and complete the weighing; Step 4: Release the fish, control the lifting device to drive the electronic scale to move downward, and make the fixed support plate tilt to support the weighing trough, lift the right baffle of the I-beam bracket, and the fish in the weighing trough will fall directly from the bottom of the weighing trough and enter the temporary holding pond, completing the fish release, and then continue with steps 1 to 4; Step 5: Call it a day, after completing the weighing of all the catches, support the symmetrical weighing trough with the fixed support plate, take out the I-beam bracket for cleaning and placement, and remove the mounting base from the electronic scale.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. Arrange the weighing slot at an angle above the electronic scale. When not weighing, support the weighing slot symmetrically with a fixed support plate to reduce the load on the electronic scale and ensure the accuracy of the electronic scale.

[0017] 2. The tilted weighing trough can be used to place fish from the left end of the weighing trough into the weighing trough through the fish trough by moving the left end baffle of the I-shaped bracket upward out of the weighing trough; and the left end baffle of the I-shaped bracket can be moved out of the weighing trough so that the fish can flow directly out of the weighing trough and into the temporary holding pond, eliminating the need for workers to place fish and scoop fish out of the weighing trough, reducing the time fish spend out of water, and preventing fish from dying due to lack of oxygen.

[0018] 3. Set a background board at the bottom of the connecting rod and a transparent scale at the bottom of the side wall of the weighing tank. Take photos and record them, then release the fish. The length of the fish body can be obtained by the scales on the side wall of the weighing tank corresponding to the head and tail of the fish, making the measurement process more intuitive and reducing the labor intensity of the staff.

[0019] 4. After placing the fish in the weighing tank, the electronic scale is moved upward by the lifting device, and the mounting base on the electronic scale is used to support the weighing tank symmetrically. This can avoid impact on the electronic scale supporting the weighing tank when the fish is placed inside the weighing tank, thereby extending the service life of the electronic scale.

[0020] 5. In long-term weighing and measuring work, the weighing trough needs to be placed on the electronic scale only when weighing is required. Long-term repeated stamping will cause damage to the electronic scale. The fixed support plate is used to support the symmetrical measuring trough, and the lifting device drives the electronic scale to move up and down. This not only avoids the staff from repeatedly carrying the weighing trough, but also reduces the impact on the electronic scale and extends the service life of the electronic scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the structure of an embodiment of the present invention.

[0022] Figure 2 This is a front view of an embodiment of the present invention in a weighing state.

[0023] Figure 3 This is a front view of an embodiment of the present invention in a tilted state.

[0024] Figure 4 2 is a top view of an embodiment of the present invention.

[0025] Figure 5 for Figure 4 Cross-sectional view of section AA

[0026] In the above drawings: 1. Electronic scale; 2. Lifting platform; 3. Mounting seat; 4. Movable support plate; 5. Clamping rod; 6. Roller; 7. Weighing trough; 8. Fixed rod; 9. Fixed support plate; 10. I-bracket; 11. Connecting rod; 12. Background board; 13. Temporary holding pond; 14. Fish trough; 15. Waterproof cushion layer. DETAILED DESCRIPTION

[0027] The technical solutions of the present invention are further described below with reference to the accompanying drawings and embodiments.

[0028] like Figure 1-5As shown, in order to extend the service life of the electronic scale, reduce the labor intensity of the staff during the weighing process, and reduce the damage to the fish during the weighing process, the present invention proposes a fish catch weighing system, comprising a lifting device, an electronic scale 1 driven by the lifting device to achieve vertical movement, a transparent weighing tank 7 tilted and supported by a fixed support plate 9 on the top of the lifting device, an I-shaped bracket 10 placed in the weighing tank 7, and a fish trough 14 connected to the top of the tilted weighing tank 7, a temporary holding pool 13 is provided below the bottom end of the tilted weighing tank 7, the top and both ends of the weighing tank 7 are open, the I-shaped bracket 10 includes a connecting rod 11 and baffles vertically connected to the two ends of the connecting rod 11, and the edge of the baffle at the left end is in contact with the inner wall of the weighing tank 7, a background plate 12 is vertically provided at the bottom of the connecting rod 11, a transparent measuring electronic scale 1 is provided at the bottom of the side wall of the weighing tank 7, and a mounting seat 3 for weighing is provided at the top.

[0029] The lifting device includes a frame, a guide rod vertically fixed to the frame, a lead screw vertically mounted on the frame, a lifting platform 2 threadedly connected to the lead screw, the guide rod extending through the lifting platform, a motor and a reducer disposed at the bottom of the frame, the output shaft of the motor being in transmission connection with the reducer, the output shaft of the reducer being coaxially fixedly connected to the bottom end of the lead screw, and the motor driving the lifting platform 2 to reciprocate in the vertical direction. The lead screw drives the lifting platform 2 to rise smoothly, the mounting base 3 stably contacts the weighing slot 7 and lifts the weighing slot 7, and the mounting base 3 is not impacted during the lifting process, thereby effectively protecting the electronic scale 1 from impact and extending the service life of the electronic scale 1.

[0030] A small oxygenator is installed in the temporary holding tank 13 to provide oxygen and temporary holding for the fish after the symmetrical measurement is completed. During the weighing process, a camera is placed on one side of the weighing tank 7 for taking pictures of the fish. By taking pictures of the background plate 12 corresponding to the fish body, the length of the fish body can be obtained according to the scale on the bottom of the side wall of the weighing tank 7. Fixed support plates 9 are provided on both sides of the top of the frame. The fixed support plates 9 are supported by fixed rods 8. The fixed rods 8 are arranged on the top of the frame of the lifting device. The height of the fixed rods 8 on one side of the frame is greater than that of the fixed rods 8 on the other side. Therefore, the fixed support plates 9 can be used to support the symmetrical measuring tank 7 at an angle.

[0031] like Figure 1 As shown, in order to facilitate placing the fish straightly in the weighing tank 7. The bottom of the weighing tank 7 is an arc-shaped plate, the two side walls of the weighing tank 7 are inclined plates and are respectively connected to the two sides of the arc-shaped plate, and a rubber layer is provided on the inner wall of the fixed support plate 9.

[0032] The bottom of the weighing tank 7 is set to be arc-shaped, and after the fish is placed in the weighing tank 7, it can fit well, so that the flat fish can be located at the bottom of the weighing tank 7, and the fish body is parallel to the weighing tank 7, which not only saves the staff's time for adjusting the fish body, but also improves the accuracy of measuring the fish body length; the inclined side walls of the weighing tank 7 are convenient for the staff to take out the I-shaped bracket 10 placed in the weighing tank 7 when finishing work; a rubber layer is arranged on the inner wall of the fixed support plate 9 to increase the friction between the fixed support plate 9 and the outer wall of the weighing tank 7 to prevent the weighing tank 7 from sliding obliquely.

[0033] As a preferred embodiment of the present invention, in order to reduce the weight of the weighing tank 7 and reduce the pressure on the electronic scale 1, the weighing tank 7 is made of glass or acrylic plate, and the bottom of the weighing tank 7 is bent by direct heat bending or thermoforming.

[0034] The original measuring slot 7 was a cubic structure. Except for the top surface being open and one side wall being a transparent plate, the other side walls were all made of metal. It weighed 11186.4g, which was not only inconvenient to carry, but also overloaded the electronic scale 1, which had a certain impact on its accuracy. Now the material of the measuring slot 7 is made of glass or acrylic plate, and the left and right end surfaces are open to reduce the pressure on the electronic scale 1.

[0035] like Figure 1-3 As shown, in order to improve the stability of the support of the symmetrical measuring groove 7 by the mounting base 3, a movable support plate 4 is fixedly provided on the mounting base 3, and the movable support plate 4 is located directly below the measuring groove 7. The bottom of the movable support plate 4 is arc-shaped and can fit the bottom wall of the measuring groove 7.

[0036] When the electronic scale 1 and the mounting base 3 are driven upward by the lifting platform 2, the inner wall of the movable support plate 4 on the mounting base 3 can fit tightly with the outer wall of the weighing groove 7, thereby achieving effective support for the symmetrical measuring groove 7.

[0037] like Figure 1 As shown, in order to further improve the clamping capacity of the symmetrical measuring groove 7 of the movable support plate 4, the movable support plate 4 includes an arc-shaped plate at the bottom and inclined plates connecting the two ends of the arc-shaped plate. The angle between the two inclined plates in the movable support plate 4 is greater than the angle between the two side walls of the measuring groove 7. A clamping rod 5 is slidably provided on the inclined plate, and the clamping rod 5 vertically penetrates the inclined plate. A spring is sleeved on the clamping rod 5, and one end of the spring is connected to the clamping rod 5, and the other end is connected to the inclined plate.

[0038] First, the opening of the inclined plate of the movable support plate 4 is larger than the opening between the two side walls of the weighing groove 7, which can facilitate the weighing groove 7 to enter the movable support plate 4; before the inner bottom wall of the movable support plate 4 contacts the bottom wall of the weighing groove 7, the side wall of the weighing groove 7 contacts the clamping rod 5 and pushes the clamping rod 5 to move toward the outside of the movable support plate 4, while compressing or stretching the spring. Under the action of the spring force, the clamping rod 5 is in close contact with the side wall of the weighing groove 7 and provides a clamping force to clamp the symmetrical measuring groove 7; since the clamping rods 5 on the two inclined plates of the movable support plate 4 are symmetrically arranged, the symmetrical measuring groove 7 can be found, ensuring that the bottom wall of the weighing groove 7 can be stably fitted with the inner bottom wall of the movable support plate 4 to achieve effective support.

[0039] like Figure 1 As shown, in order to reduce the friction between the clamping rod 5 and the outer wall of the weighing groove 7. The end of the clamping rod 5 is horizontally rotatably mounted with a roller 6, which is located on the inner side of the movable support plate 4.

[0040] By providing the roller 6, when the weighing slot 7 moves relative to the clamping rod 5, the roller 6 is rotated, and the sliding friction is converted into rolling friction; of course, the roller 6 is made of hard rubber.

[0041] like Figure 2 As shown, for the convenience of disassembly and assembly of the mounting base 3. The mounting base 3 is detachably placed on the electronic scale 1, and the bottom of the mounting base 3 is provided with a sleeve for fitting on the sensor column on the top of the electronic scale 1.

[0042] When weighing is not required, the sensor column on the top of the electronic scale 1 is emptied to avoid long-term pressure; the connection through the sleeve not only facilitates the installation and removal of the mounting base 3, but also can achieve an effective limiting effect.

[0043] like Figure 2-5 As shown, to improve the sealing between the weighing trough 7 and the fish sling trough 14 during the fish release process, the inner wall of the fish sling trough 14 can be aligned with the outer wall of the weighing trough 7, and a waterproof cushion layer 15 is provided on the inner bottom of the fish sling trough 14. When fish are transferred from the fish sling trough 14 to the weighing trough 7, a certain amount of water will flow down through the gap between the weighing trough 7 and the fish sling trough 14, thereby affecting the ground or the electronic scale 1. The waterproof cushion layer 15 is provided to ensure that the weighing trough 7 and the fish sling trough 14 are tightly connected.

[0044] A method for weighing fish catches includes the following steps: Step 1: tare, assembling the parts required for weighing a weighing tank 7 on the weighing tank 7, placing the weighing tank 7 on a fixed support plate 9, assembling a mounting base 3 on an electronic scale 1, and starting a lifting device to drive the electronic scale 1 to move upward. During the movement of the electronic scale 1, the mounting base 3 contacts the bottom wall of the weighing tank 7 and pushes the weighing tank 7 upward. After the weighing tank 7 is separated from the fixed support plate 9, the electronic scale 1 is operated to reset to complete the tare; Step 2: Measure, control the lifting device to move the electronic scale 1 downward, reset the weighing slot 7, and after the fixed support plate 9 supports the symmetrical measuring slot 7, lift the left end baffle of the I-shaped bracket 10 upward, and make the head of the fish to be measured slide from the fish trough 14 into the weighing slot 7 and reach the baffle at the right end, straighten the fish body so that the fish body and the weighing slot 7 are in the same direction, and take pictures and record them with a camera through the background plate 12 and the transparent scale at the bottom of the side wall of the fish trough 14 to complete the measurement; Step 3: Weigh, control the lifting device to drive the electronic scale 1 to move upward, and lift the weighing slot 7 through the mounting base 3, so that the weighing slot 7 is separated from the fixed support plate 9, record the reading of the electronic scale 1, and complete the weighing; Step 4: Release the fish. Control the lifting device to drive the electronic scale 1 to move downward, and make the fixed support plate 9 tilt to support the weighing tank 7. Lift the right baffle of the I-shaped bracket 10 upward, and the fish in the weighing tank 7 will fall directly from the bottom of the weighing tank 7 and enter the temporary holding pond 13. The fish is released, and then continue with steps 1 to 4. Step 5: Call it a day. After all the catches are weighed, support the weighing tank 7 symmetrically with the fixed support plate 9, take out the I-shaped bracket 10 for cleaning and placement, and remove the mounting base 3 from the electronic scale 1.

[0045] In addition, in order to further improve the accuracy of the results, before weighing, the weighing tank 7 is in an inclined state, and the I-shaped bracket 10 is lifted upward to ensure that the fish in the weighing tank 7 cannot pass through, so that the water in the weighing tank 7 can quickly flow out to improve the accuracy of the weighing results.

Claims

1. A method for weighing fish catches, characterized in that: A catch weighing system is used, comprising a lifting device, an electronic scale (1) driven by the lifting device to achieve vertical movement, a transparent weighing tank (7) tilted and supported by a fixed support plate (9) on the top of the lifting device, an I-shaped bracket (10) placed in the weighing tank (7), and a fish trough (14) connected to the top of the weighing tank (7) in an inclined state, a temporary holding pool (13) is provided below the bottom end of the weighing tank (7) in an inclined state, the top and both ends of the weighing tank (7) are open, the I-shaped bracket (10) comprises a connecting rod (11) and baffles vertically connected to both ends of the connecting rod (11), and the edge of the baffle at the left end is in contact with the inner wall of the weighing tank (7), a background plate (12) is vertically provided at the bottom of the connecting rod (11), and a mounting seat (3) for weighing is provided on the top of the electronic scale (1); The weighing method includes the following steps: Step 1: Tare. Assemble the parts required for the weighing trough (7) to perform weighing work on the weighing trough (7), place the weighing trough (7) on the fixed support plate (9), assemble the mounting seat (3) on the electronic scale (1), start the lifting device, and drive the electronic scale (1) to move upward. During the movement of the electronic scale (1), the mounting seat (3) contacts the bottom wall of the weighing trough (7) and pushes the weighing trough (7) upward. After the weighing trough (7) is separated from the fixed support plate (9), operate the electronic scale (1) to reset to zero, and complete the tare. Step 2: measuring, controlling the lifting device to move the electronic scale (1) downward, resetting the measuring tank (7), and after achieving the support of the fixed support plate (9) symmetrically to the measuring tank (7), lifting the left end baffle of the I-shaped bracket (10) upward, and making the head end of the fish to be measured slide from the fish trough (14) into the measuring tank (7) and reach the right end baffle, straightening the fish body so that the fish body and the measuring tank (7) are in the same direction, taking pictures and recording with a camera through the background plate (12) and the transparent scale at the bottom of the side wall of the fish trough (14), and completing the measurement; Step 3: Weighing, controlling the lifting device to drive the electronic scale (1) to move upward, and lifting the weighing tank (7) through the mounting base (3), so that the weighing tank (7) is separated from the fixed support plate (9), recording the reading of the electronic scale (1), and completing the weighing; Step 4: Release the fish. Control the lifting device to drive the electronic scale (1) to move downward, and make the fixed support plate (9) tilt to support the weighing tank (7). Lift the right end baffle of the I-shaped bracket (10) upward, and the fish in the weighing tank (7) will fall directly from the bottom of the weighing tank (7) and enter the temporary holding tank (13). The fish are released, and then continue with steps 1 to 4. Step 5: Finish the work. After all the catches have been weighed, support the symmetrical measuring slot (7) by fixing the support plate (9), take out the I-shaped bracket (10), clean it and put it away, and remove the mounting base (3) from the electronic scale (1).

2. A method for weighing fish catches as claimed in claim 1, characterized in that: The bottom of the weighing trough (7) is an arc-shaped plate, the two side walls of the weighing trough (7) are inclined plate members respectively connected to the two sides of the arc-shaped plate, and a rubber layer is provided on the inner wall of the fixed support plate (9).

3. A method for weighing fish catches as claimed in claim 2, characterized in that: The weighing tank (7) is made of glass or acrylic plate, and the bottom of the weighing tank (7) is bent by thermoforming.

4. A method for weighing fish catches as claimed in claim 3, characterized in that: A movable support plate (4) is fixedly provided on the mounting seat (3), and the movable support plate (4) is located directly below the weighing groove (7). The bottom of the movable support plate (4) is arc-shaped and can fit with the bottom wall of the weighing groove (7).

5. A method for weighing fish catches as claimed in claim 4, characterized in that: The movable support plate (4) comprises an arc-shaped plate at the bottom and inclined plates connecting the two ends of the arc-shaped plate. The angle between the two inclined plates in the movable support plate (4) is greater than the angle between the two side walls of the weighing groove (7). A clamping rod (5) is slidably provided on the inclined plate. The clamping rod (5) vertically penetrates the inclined plate. A spring is sleeved on the clamping rod (5), and one end of the spring is connected to the clamping rod (5) and the other end is connected to the inclined plate.

6. A method for weighing fish catches as claimed in claim 5, characterized in that: A roller (6) is mounted on the end of the clamping rod (5) for horizontal rotation, and the roller (6) is located on the inner side of the movable support plate (4).

7. A method for weighing fish catches as claimed in claim 1, characterized in that: The mounting seat (3) is detachably placed on the electronic scale (1), and a sleeve for sleeve-fitting onto a sensor column at the top of the electronic scale (1) is provided at the bottom of the mounting seat (3).

8. A method for weighing fish catches as claimed in claim 1, characterized in that: The inner wall of the fish trough (14) can be fitted with the outer wall of the weighing trough (7), and the inner bottom of the fish trough (14) is provided with a waterproof cushion layer (15).

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