Integrated fish body posture automatic measuring instrument

Abstract

The application relates to the field of fish measurement, and particularly relates to an integrated automatic fish body posture measuring instrument, which comprises a supporting seat, a weighing device and a tray; the tray is fixedly installed on the weighing device and is used for placing a fish body; the weighing device is arranged on the supporting seat; a fixing mechanism is fixedly installed on the supporting seat and is used for fixing the fish body; the fixing mechanism comprises a first electric push rod, an adjusting assembly and a clamping plate mechanism used for fixing the fish body; the first electric push rod is fixedly installed on the supporting seat; the adjusting assembly is fixedly installed on the telescopic end of the first electric push rod through a connecting plate; and the clamping plate mechanism is installed on the adjusting assembly; the first electric push rod is used for adjusting the height of the adjusting assembly; the adjusting assembly is used for adjusting the position of the clamping plate mechanism; and the clamping plate mechanism is used for fixing the position of the fish body. The application can be adapted to fix various fish with different sizes, thereby improving the applicability of the equipment.

Description

Technical Field

[0001] This invention belongs to the field of fish measurement technology, and specifically relates to an integrated automatic fish body shape measuring instrument. Background Technology

[0002] Fish body measurement is a fundamental and core technical link in fisheries production, resource surveys, scientific research and other fields. Its purpose is not simply to "obtain size data", but to form a multi-dimensional target system around "understanding the condition of fish, guiding practical applications and supporting scientific decision-making".

[0003] A search revealed that Chinese Patent Publication No. CN119022853A, published on November 26, 2024, discloses a fish length measuring device and method. The device includes a support leg with a worktable on its top surface. A fish-holding trough is formed on the inner side of the worktable, and a fixing mechanism is located on the inner side of the worktable. A measuring mechanism is positioned above the worktable. The fixing mechanism includes a fixing part and a driving part, with the driving part located on the inner side of the fixing part. The measuring mechanism includes a moving part and a measuring part, with the measuring part located on the top surface of the moving part. Through the fixing mechanism, a motor in the driving part drives a double-ended threaded rod to rotate, which in turn moves a slider. This slider then moves the fixing part, causing the slider to slide against the inner wall of the worktable. During fixing, the limiting post slides under the action of the first sliding seat, ensuring complete contact with the fish and preventing slippage. This invention effectively ensures the stability of the fish during measurement and improves the accuracy of the measurement data.

[0004] However, the device still has the following drawbacks: when measuring fish, since the fish species to be measured are different, their body length and width are also different. The existing device cannot meet the requirement of fixing different fish species, and errors are prone to occur during measurement, affecting the accuracy of the measurement. Summary of the Invention

[0005] To address the above problems, the present invention provides an integrated automatic fish body shape measuring instrument, including a support base, a weighing device, and a tray; The tray is fixedly installed on the weighing equipment, and the tray is used to hold the fish. The weighing device is mounted on the support base, and a fixing mechanism is fixedly installed on the support base for fixing the fish. The fixing mechanism includes a first electric push rod, an adjustment component, and a clamping mechanism for fixing the fish body. The first electric push rod is fixedly installed on the support base, the adjustment component is fixedly installed on the telescopic end of the first electric push rod through a connecting plate, and the clamping mechanism is installed on the adjustment component. The first electric actuator is used to adjust the height of the adjustment component; The adjustment component is used to adjust the position of the clamping mechanism; The clamping mechanism is used to fix the position of the fish body; The tray is equipped with a measuring mechanism for measuring the fish.

[0006] Furthermore, the adjustment assembly includes a lead screw and a guide rail, as well as a drive component for rotating the lead screw. The lead screw is rotatably mounted in the guide rail, and a sliding block is rotatably mounted on the lead screw. The rotation of the lead screw can drive the sliding block to slide linearly along the guide rail. There are two sliding blocks, and the two sliding blocks can slide relative to each other when the lead screw rotates.

[0007] Furthermore, the clamping mechanism includes a second electric push rod, a floating plate, and a buffer component. A guide component is fixedly installed on the sliding block, the second electric push rod is fixedly installed on the guide component, and a connecting rod is provided on the guide component. One side of the floating plate is hinged to the connecting rod through a first floating joint. A pin seat is provided at the end of the buffer component, and a second floating joint is fixedly installed on the side of the floating plate. The second floating joint is hinged to the pin seat. The buffer component is installed on the connecting rod. Two sets of buffer components are provided, and the two sets of buffer components are connected through a connecting pipe.

[0008] Furthermore, the buffer includes a telescopic rod, an air storage tube, a spring, and a piston. The piston is slidably installed inside the air storage tube. One end of the spring is disposed on the inner wall of the air storage tube, and the other end of the spring is disposed on the side of the piston. One end of the telescopic rod is fixedly connected to the side of the piston away from the spring, and the other end of the telescopic rod is connected to the second floating joint through a pin seat.

[0009] Furthermore, the guide member includes a guide groove and a guide block. The guide groove is fixedly installed on the sliding block, and the guide block is slidably installed in the guide groove. The connecting rod is fixedly connected to the guide block, and the second electric push rod is fixedly installed at one end of the guide groove. The telescopic end of the second electric push rod is fixedly connected to the guide block.

[0010] Furthermore, the connecting rod is provided with a positioning element, which includes a threaded rod and a threaded hole. The threaded rod is rotatably installed in the threaded hole, and the threaded hole is opened on the side of the connecting rod.

[0011] Furthermore, the tray has a groove with an arc-shaped bottom to guide the water flowing down the fish's body.

[0012] Furthermore, the measuring mechanism includes a body length measuring mechanism and a body width measuring mechanism. The body length measuring mechanism includes a first grating ruler and a first electric slide. The first grating ruler is fixedly mounted on the first electric slide, and the first electric slide can drive the first grating ruler to move left and right.

[0013] Furthermore, a bracket is provided on the support base, and the body width measuring mechanism is mounted on the bracket; The body width measuring mechanism includes a second electric slide, which is fixedly mounted on the bracket. A third electric slide is fixedly mounted on the second electric slide, and a second grating ruler for measuring the fish body width is fixedly mounted on the sliding part of the third electric slide.

[0014] Furthermore, the side of the floating plate is provided with a flexible mechanism that fits into the surface of the fish. The surface of the flexible mechanism is set as a flexible friction surface, which can increase the contact area with the fish when the flexible mechanism is in contact with the surface of the fish.

[0015] The beneficial effects of this invention are: 1. When measuring fish of different sizes, the drive unit operates, which drives the lead screw to rotate, thereby causing the sliding block to move linearly along the guide rail. This, in turn, causes the two sliding blocks to move relative to each other, adjusting the distance between the clamping plates. This allows the device to provide a fixing function for fish of various sizes, improving its applicability.

[0016] 2. When fixing the fish, the clamping mechanism is used to drive the flexible mechanism to contact the fish through the second electric push rod. By setting the flexible mechanism as a flexible friction surface, it can effectively prevent the flexible mechanism from slipping when in contact with the fish and can make flexible contact with the fish, which can effectively prevent damage to the fish. When fixing the fish at different positions, each group of second electric push rods can adjust the extension distance according to the part of the fish to ensure that the floating plate can drive the flexible mechanism to contact the fish.

[0017] 3. By using the first floating joint and the second floating joint in combination, when the floating plate drives the flexible mechanism to contact the surface of the fish, the first floating joint and the second floating joint can tilt the floating plate slightly according to the force direction of the floating plate, so that the floating plate can drive the flexible structure to better contact the surface of the fish, so that the floating plate can remain stable when in contact with the fish.

[0018] 4. After the clamping mechanisms on both sides are in contact with the fish body, the threaded rod is rotated in the threaded hole so that the end of the threaded rod is in contact with the side of the floating plate. This can fix the position of the floating plate and provide support for the floating plate when the fish body undergoes stress-induced twitching after anesthesia. This can effectively prevent the floating plate from swinging and can effectively prevent the position of the fish body from changing.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure according to an embodiment of the present invention is shown.

[0022] Figure 2 An isometric schematic diagram of a body length measuring mechanism according to an embodiment of the present invention is shown.

[0023] Figure 3 A schematic cross-sectional view of a floating plate according to an embodiment of the present invention is shown.

[0024] Figure 4 An isometric schematic diagram of a buffer element according to an embodiment of the present invention is shown.

[0025] Figure 5 An isometric schematic diagram of a body width measuring mechanism according to an embodiment of the present invention is shown.

[0026] In the diagram: 1. Support base; 2. Weighing equipment; 3. Pallet; 4. Fixing mechanism; 5. First electric push rod; 6. Adjustment component; 7. Clamping plate mechanism; 9. Lead screw; 10. Guide rail; 11. Sliding block; 12. Second electric push rod; 13. Floating plate; 14. Buffer; 15. Guide component; 16. Connecting rod; 17. First floating joint; 18. Pin seat; 19. Second floating joint; 20. Telescopic rod; 21. Air storage pipe; 22. Spring; 23. Piston; 24. Guide groove; 25. Guide block; 26. Positioning component; 27. Threaded rod; 28. Threaded hole; 29. ​​Groove; 30. Body length measuring mechanism; 31. Body width measuring mechanism; 32. First grating ruler; 33. First electric slide; 34. Bracket; 35. Second electric slide; 36. Second grating ruler; 37. Flexible mechanism; 38. Driving component; 39. Third electric slide. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] This invention provides an integrated automatic fish body shape measuring instrument, see below. Figures 1-5 It includes a support base 1, a weighing device 2, and a pallet 3; The tray 3 has a groove 29, the bottom of which is arc-shaped to guide the water flowing down the fish, preventing excess water from affecting the weight of the fish and reducing measurement error. The tray 3 is fixedly installed on the weighing device 2, and the tray 3 is used to place the fish. The weighing device 2 is mounted on the support base 1, and a fixing mechanism 4 is fixedly installed on the support base 1. The fixing mechanism 4 is used to fix the fish body. The fixing mechanism 4 includes a first electric push rod 5, an adjustment component 6, and a clamping mechanism 7 for fixing the fish body. The first electric push rod 5 is fixedly installed on the support base 1. The adjustment component 6 is fixedly installed on the telescopic end of the first electric push rod 5 through a connecting plate. The clamping mechanism 7 is installed on the adjustment component 6. The first electric push rod 5 is used to adjust the height of the adjustment component 6; The adjustment component 6 is used to adjust the position of the clamping mechanism 7; The clamping mechanism 7 is used to fix the position of the fish body; The tray 3 is equipped with a measuring mechanism, which is used to measure the fish body.

[0029] Using the above scheme, when measuring the fish, the anesthetized fish are first placed in the groove 29 on the tray 3, and the fish placed on the tray 3 are weighed by the weighing device 2. In order to prevent the anesthetized fish from swaying due to stress response during weighing, the fish body is fixed in position by a fixing mechanism, which can effectively prevent errors when measuring and weighing the fish.

[0030] For example, see Figure 3 and Figure 5 The adjustment assembly 6 includes a lead screw 9 and a guide rail 10, as well as a drive component 38 for rotating the lead screw 9. The lead screw 9 is rotatably mounted in the guide rail 10, and a sliding block 11 is rotatably mounted on the lead screw 9. The rotation of the lead screw 9 can drive the sliding block 11 to slide linearly along the guide rail 10. There are two sliding blocks 11, and the two sliding blocks 11 can slide relative to each other when the lead screw 9 rotates.

[0031] It should be noted that in this embodiment, there are two sliding blocks 11. In other embodiments, the number of sliding blocks 11 includes, but is not limited to, two or four. The drive component 38 is configured as a motor.

[0032] Using the above scheme, when measuring fish of different sizes, the drive unit 38 works to drive the lead screw 9 to rotate, thereby causing the sliding block 11 to move linearly along the guide rail 10, which in turn drives the two sliding blocks 11 to move relative to each other, adjusting the distance between the clamping mechanism 7. This allows the device to provide a fixing function for fish of various sizes, improving its applicability.

[0033] For example, see Figure 3 and Figure 4 The clamping mechanism 7 includes a second electric push rod 12, a floating plate 13, and a buffer 14. A guide 15 is fixedly installed on the sliding block 11. The second electric push rod 12 is fixedly installed on the guide 15. A connecting rod 16 is provided on the guide 15. One side of the floating plate 13 is hinged to the connecting rod 16 through a first floating joint 17. A pin seat 18 is provided at the end of the buffer 14. A second floating joint 19 is fixedly installed on the side of the floating plate 13. The second floating joint 19 is hinged to the pin seat 18. The buffer 14 is installed on the connecting rod 16. Two sets of buffer 14 are provided, and the two sets of buffer 14 are connected through a connecting pipe. The side of the floating plate 13 is provided with a flexible mechanism 37. The flexible mechanism 37 is in contact with the surface of the fish body. The surface of the flexible mechanism 37 is set as a flexible friction surface. When the flexible mechanism 37 is in contact with the surface of the fish body, it can increase the contact area with the fish body. It should be noted that, in this embodiment, the flexible mechanism 37 is made of flexible silicone. The buffer component 14 includes a telescopic rod 20, an air storage pipe 21, a spring 22, and a piston 23. The piston 23 is slidably installed inside the air storage pipe 21. One end of the spring 22 is disposed on the inner wall of the air storage pipe 21, and the other end of the spring 22 is disposed on the side of the piston 23. One end of the telescopic rod 20 is fixedly connected to the side of the piston 23 away from the spring 22, and the other end of the telescopic rod 20 is connected to the second floating joint 19 through a pin seat 18. The guide member 15 includes a guide groove 24 and a guide block 25. The guide groove 24 is fixedly installed on the sliding block 11, and the guide block 25 is slidably installed in the guide groove 24. The connecting rod 16 is fixedly connected to the guide block 25. The second electric push rod 12 is fixedly installed at one end of the guide groove 24, and the telescopic end of the second electric push rod 12 is fixedly connected to the guide block 25.

[0034] It should be noted that the second electric push rod 12 is an electric push rod that can adjust the thrust, and when fixing the fish at different positions, the extension distance of the extension part of the electric push rod at each position can be adjusted adaptively.

[0035] Using the above scheme, when fixing the fish, the clamping mechanism 7 is used to drive the flexible mechanism 37 to contact the fish through the second electric push rod 12. By setting the flexible mechanism as a flexible friction surface, slippage can be effectively prevented when the flexible mechanism contacts the fish, and flexible contact with the fish can be achieved, effectively preventing damage to the fish. When fixing the fish at different positions, each group of second electric push rods 12 can adjust the extension distance according to the part of the fish, ensuring that the floating plate 13 can drive the flexible mechanism 37 to contact the fish. Since the surface of the fish is uneven, through the cooperation of the first floating joint and the second floating joint, when the floating plate 13 drives the flexible mechanism 37 to adhere to the surface of the fish, the first floating joint 17 and the second floating joint 19 adjust according to the fish's surface. The force direction of the floating plate 13 allows it to tilt slightly, enabling the flexible structure to better contact the fish's surface. To ensure stability when in contact with the fish, the telescopic rod can be pulled when the floating plate 13 moves the flexible mechanism 37 against the fish's surface, causing a change in the floating plate 13's pitch angle. This moves the piston within the air storage pipe 21, either expelling gas from the pipe or drawing gas from another pipe. During the fixing process, the spring 22 is in a stretched or compressed state, providing a counterforce to the floating plate 13. This allows the flexible mechanism 37 to better contact the fish, providing some auxiliary fixing and resistance when the floating plate 13 is under force.

[0036] For example, see Figure 3 The connecting rod 16 is provided with a positioning element 26, which includes a threaded rod 27 and a threaded hole 28. The threaded rod 27 is rotatably installed in the threaded hole 28, which is opened on the side of the connecting rod 16.

[0037] Using the above scheme, after the clamping mechanism 7 on both sides is attached to the fish body, the threaded rod 27 is rotated in the threaded hole 28, so that the end of the threaded rod 27 is attached to the side of the floating plate 13. This can fix the position of the floating plate 13, provide support for the floating plate 13 when the fish body undergoes stress twitching after anesthesia, effectively prevent the floating plate 13 from swinging, and effectively prevent the position of the fish body from changing.

[0038] For example, see Figure 2 and Figure 5 The measuring mechanism includes a body length measuring mechanism 30 and a body width measuring mechanism 31. The body length measuring mechanism 30 includes a first grating ruler 32 and a first electric slide 33. The first grating ruler 32 is fixedly installed on the first electric slide 33, and the first electric slide 33 can drive the first grating ruler 32 to move left and right. A bracket 34 is provided on the support base 1, and the body width measuring mechanism 31 is installed on the bracket 34; The body width measuring mechanism 31 includes a second electric slide 35, which is fixedly mounted on the bracket 34. A third electric slide 39 is fixedly mounted on the second electric slide 35, and a second grating ruler 36 for measuring the body width of the fish is fixedly mounted on the sliding part of the third electric slide 39.

[0039] By adopting the above scheme, when it is necessary to measure the body length of the fish, the first electric slide 33 drives the first grating ruler 32 to move, thereby measuring the length of the fish, reducing the error caused by manual measurement and improving the measurement quality. When it is necessary to measure the width of the fish, the second grating ruler 36 is moved by the operation of the second electric slide 35, which can measure the width of various positions of the fish and meet the requirements for measuring the width of various parts of the fish.

[0040] In summary, the working principle of this application is as follows: When measuring fish of different sizes, the drive unit 38 works to drive the lead screw 9 to rotate, thereby causing the sliding block 11 to move linearly along the guide rail 10, which in turn causes the two sliding blocks 11 to move relative to each other, adjusting the distance between the clamping mechanism 7. This allows the device to provide a fixing function for fish of various sizes, improving its applicability. When fixing the fish, the clamping mechanism 7 is used to drive the flexible mechanism 37 to contact the fish through the second electric push rod 12. By setting the flexible mechanism as a flexible friction surface, slippage can be effectively prevented when the flexible mechanism contacts the fish, and flexible contact with the fish can effectively prevent damage to the fish. When fixing the fish at different positions, each group of second electric push rods 12 can adjust the extension distance according to the part of the fish to ensure that the floating plate 13 can drive the flexible mechanism 37 to contact the fish. Since the surface of the fish is uneven, the first floating joint and the second floating joint are used in combination. When the floating plate 13 drives the flexible mechanism 37 to contact the surface of the fish, the first floating joint 17 and the second floating joint 19 adjust according to the floating plate. The force direction of 13 allows the floating plate 13 to tilt slightly, enabling the floating plate 13 to drive the flexible structure to better contact the surface of the fish. In order to keep the floating plate 13 stable when in contact with the fish, when the floating plate 13 drives the flexible mechanism 37 to stick to the surface of the fish, and the floating plate 13 changes pitch angle, the telescopic rod can be pulled, so that the piston moves in the air storage tube 21, expelling the gas in the air storage tube 21, or drawing in the gas from another air storage tube 21. During the fixing process, the spring 22 is in a stretched or compressed state, which can provide a reverse force to the floating plate 13, so that the flexible mechanism 37 can better contact the fish and play a certain auxiliary fixing role for the fish. When the floating plate 13 is under force, it can provide resistance. After the clamping mechanisms 7 on both sides are in contact with the fish body, the threaded rod 27 is rotated in the threaded hole 28 so that the end of the threaded rod 27 is in contact with the side of the floating plate 13. This can fix the position of the floating plate 13 and provide support for the floating plate 13 when the fish body undergoes stress twitching after anesthesia. This can effectively prevent the floating plate 13 from swinging and can effectively prevent the position of the fish body from changing.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated automatic fish body shape measuring instrument, characterized in that, Includes a support base (1), a weighing device (2), and a pallet (3); The tray (3) is fixedly installed on the weighing device (2), and the tray (3) is used to place the fish. The weighing device (2) is mounted on the support base (1), and a fixing mechanism (4) is fixedly installed on the support base (1). The fixing mechanism (4) is used to fix the fish body. The fixing mechanism (4) includes a first electric push rod (5), an adjustment component (6), and a clamping mechanism (7) for fixing the fish body. The first electric push rod (5) is fixedly installed on the support base (1). The adjustment component (6) is fixedly installed on the telescopic end of the first electric push rod (5) through a connecting plate. The clamping mechanism (7) is installed on the adjustment component (6). The first electric push rod (5) is used to adjust the height of the adjustment component (6); The adjustment component (6) is used to adjust the position of the clamping mechanism (7); The adjustment assembly (6) includes a lead screw (9) and a guide rail (10), as well as a drive component (38) for rotating the lead screw (9). The lead screw (9) is rotatably mounted in the guide rail (10), and a sliding block (11) is rotatably mounted on the lead screw (9). The rotation of the lead screw (9) can drive the sliding block (11) to slide linearly along the guide rail (10). There are two sliding blocks (11), and the two sliding blocks (11) can slide relative to each other when the lead screw (9) rotates. The clamping mechanism (7) is used to fix the position of the fish body; The clamping mechanism (7) includes a second electric push rod (12), a floating plate (13), and a buffer (14). A guide (15) is fixedly installed on the sliding block (11). The second electric push rod (12) is fixedly installed on the guide (15). A connecting rod (16) is provided on the guide (15). One side of the floating plate (13) is hinged to the connecting rod (16) through a first floating joint (17). A pin seat (18) is provided at the end of the buffer (14). A second floating joint (19) is fixedly installed on the side of the floating plate (13). The second floating joint (19) is hinged to the pin seat (18). The buffer (14) is installed on the connecting rod (16). There are two sets of buffers (14), and the two sets of buffers (14) are connected through a connecting pipe. The tray (3) is equipped with a measuring mechanism for measuring the fish body; The measuring mechanism includes a body length measuring mechanism (30) and a body width measuring mechanism (31). The body length measuring mechanism (30) includes a first grating ruler (32) and a first electric slide (33). The first grating ruler (32) is fixedly installed on the first electric slide (33). The first electric slide (33) can drive the first grating ruler (32) to move left and right. A bracket (34) is provided on the support base (1), and the body width measuring mechanism (31) is installed on the bracket (34); The body width measuring mechanism (31) includes a second electric slide (35), which is fixedly mounted on the bracket (34). A third electric slide (39) is fixedly mounted on the second electric slide (35), and a second grating ruler (36) for measuring the body width of the fish is fixedly mounted on the sliding part of the third electric slide (39).

2. The integrated automatic fish body shape measuring instrument according to claim 1, characterized in that: The buffer (14) includes a telescopic rod (20), an air storage pipe (21), a spring (22), and a piston (23). The piston (23) is slidably installed inside the air storage pipe (21). One end of the spring (22) is located on the inner wall of the air storage pipe (21), and the other end of the spring (22) is located on the side of the piston (23). One end of the telescopic rod (20) is fixedly connected to the side of the piston (23) away from the spring (22), and the other end of the telescopic rod (20) is connected to the second floating joint (19) through a pin seat (18).

3. The integrated automatic fish body shape measuring instrument according to claim 1, characterized in that: The guide member (15) includes a guide groove (24) and a guide block (25). The guide groove (24) is fixedly installed on the sliding block (11). The guide block (25) is slidably installed in the guide groove (24). The connecting rod (16) is fixedly connected to the guide block (25). The second electric push rod (12) is fixedly installed at one end of the guide groove (24). The telescopic end of the second electric push rod (12) is fixedly connected to the guide block (25).

4. The integrated automatic fish body shape measuring instrument according to claim 1, characterized in that: The connecting rod (16) is provided with a positioning element (26), which includes a threaded rod (27) and a threaded hole (28). The threaded rod (27) is rotatably installed in the threaded hole (28), and the threaded hole (28) is opened on the side of the connecting rod (16).

5. The integrated automatic fish body shape measuring instrument according to claim 1, characterized in that: The tray (3) has a groove (29) with the bottom of the groove (29) set as an arc shape, which can guide the water flowing down the fish body.

6. The integrated automatic fish body shape measuring instrument according to claim 1, characterized in that: The side of the floating plate (13) is provided with a flexible mechanism (37), which is in contact with the surface of the fish body. The surface of the flexible mechanism (37) is set as a flexible friction surface. When the flexible mechanism (37) comes into contact with the surface of the fish body, it can increase the contact area with the fish body.

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