Measuring device convenient for fish body feature acquisition

Abstract

The utility model provides a measuring device convenient for collecting fish body characteristics, which comprises a measuring water tank with an opening at the upper end, two fish body shape retainers and a dip net, the two fish body shape retainers are respectively vertically inserted in the measuring water tank, are parallel to each other and can oppositely move in the measuring water tank; the dip net is movably placed in the measuring water tank from the position between the two fish body shape retainers, and the two fish body shape retainers are close to each other and can limit fish bodies in the dip net so that the fish bodies in the dip net can be kept parallel to the fish body shape retainers. A graduated scale for measuring the length of a fish body is arranged on the upper end face of one fish body shape retainer in the length direction of the fish body shape retainer, a weighing device is arranged at the lower end of the measuring water tank, and a measurer can measure the length of the fish body by observing the position of the fish body between the two limiting partition plates and comparing the graduated scale. The fish body can be weighed through the weighing device, and the fish body does not need to be grabbed by hands, so that measurement is more convenient, and damage to the fish body is also avoided.

Description

Technical Field

[0001] This utility model relates to the field of fish body feature acquisition technology, specifically to a measuring device that facilitates the acquisition of fish body features. Background Technology

[0002] Fish body measurement is a crucial foundational task in fish biology, ecology, and fisheries resource assessment. By measuring characteristics such as body length and weight, researchers can obtain information about fish growth and development. This data is of great significance for comparing differences between different species or different populations of the same species, analyzing the impact of environmental factors on fish growth, and developing reasonable fishing strategies.

[0003] Existing methods for measuring fish physical characteristics generally involve catching the fish and then measuring them using a measuring tape or a measuring table. For example, patent announcement number CN219288468U discloses a portable fish basic biological trait measurement and sample collection workbench. This utility model discloses a portable fish basic biological trait measurement and sample collection workbench, which uses a scale plate for measuring the total length and body length of the fish and an electronic balance on the workbench surface. The scale plate is used to measure the body length of the fish, and the electronic balance is used to measure the weight of the fish. However, when measuring fish physical characteristics, this sample collection workbench requires the fish to be taken out of the water and placed on the workbench. Because fish will have a strong stress response after being taken out of the water, they will jump on the workbench surface. In order to complete the measurement, the tester often needs to grasp and control the fish by hand. The impact force of the fish jumping and the contact of the hand can cause damage to the fish. Utility Model Content

[0004] In view of this, it is necessary to provide a measuring device that facilitates the collection of fish body characteristics, so as to solve the technical problem that fish are injured when measuring them out of the water in the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A measuring device for facilitating the collection of fish body characteristics includes a measuring tank with an open top, a fish body shape retainer, and a landing net for catching fish. Two fish body shape retainers are vertically inserted into the measuring tank, parallel to each other and capable of moving towards each other within the tank. The landing net is movably inserted into the measuring tank between the two fish body shape retainers. The proximity of the two retainers restricts the fish in the landing net, ensuring that the fish remain parallel to the retainers. A scale for measuring the fish length is provided on the upper surface of one of the retainers along its length. A weighing device is located at the lower end of the measuring tank.

[0007] Preferably, the upper end of the measuring tank has parallel grooves on the outer sides of its two edges. The two fish shape retainers each include a limiting partition and a support plate. The two ends of the support plate are respectively provided with a locking seat that matches the grooves on the two edges of the measuring tank. The locking seats at both ends of the support plate are respectively locked into the grooves on the two edges of the measuring tank. The limiting partition is vertically installed at the lower end of the support plate and inserted into the measuring tank, parallel to the support plate. The scale is set on the upper surface of one of the support plates. The support plates of the two fish shape retainers can slide parallel to each other along the grooves, so that the two limiting partitions move closer or further apart in the measuring tank.

[0008] Preferably, the limiting partition has several water-permeable holes on its opposite sides.

[0009] Preferably, the sidewall of the limiting partition that contacts the fish body is provided with a flexible buffer layer.

[0010] Preferably, a marking groove is provided on the upper end surface of the support plate on which the scale is provided or on the side wall facing the net. The marking groove extends laterally toward both ends of the support plate and is parallel to the scale. Two indicators that can slide freely along the marking groove are fixed on the marking groove.

[0011] Preferably, the landing net includes a net pole and a net bag. The net bag is a horizontally arranged long strip of flexible net with an open end at the top. There are two net poles, which are respectively arranged on both sides of the long side of the open end of the net bag. When the two net poles are held together, the open end of the net bag can be closed. When the two net poles are held apart, the open end of the net bag can be opened.

[0012] Preferably, the two ends of the net pole are respectively provided with stop heads. After the net is placed into the measuring water tank, the two ends of the net pole can slide on the two opposite edges of the upper end of the measuring water tank, and the stop heads at both ends of the net pole can stop the outer edge and limit the position of the net pole.

[0013] Preferably, a camera is installed directly above the measuring water tank.

[0014] Preferably, a support is vertically mounted on one side of the weighing device, the camera is mounted on the support, and the height of the support is adjustable.

[0015] Preferably, a drain valve is provided on the outer wall of the measuring water tank near the bottom of the measuring water tank.

[0016] As can be seen from the above technical solution, the measuring device for facilitating the collection of fish body characteristics provided in this application includes a measuring water tank with an open top, a fish body shape holding frame, and a landing net for catching fish. Two fish body shape holding frames are vertically inserted into the measuring water tank, parallel to each other and capable of moving in opposite directions within the measuring water tank. A scale for measuring the length of the fish body is provided on the upper surface of one of the fish body shape holding frames along its length direction. A weighing device is provided at the lower end of the measuring water tank. Before measuring the fish body characteristics, the measuring water tank is filled with clean water, and the fish to be measured is caught using the landing net. The fish, along with the landing net, is placed into the measuring water tank between the two fish body shape holding frames. The two frames are then moved by hand. The fish shape retention frames, positioned close together, limit the movement of the fish in the landing net, ensuring the fish remain parallel to the frame. The measuring personnel can observe the fish's position between the two retaining plates through the water in the measuring tank and measure its length using a ruler. The fish can then be weighed using a weighing device. This measuring device, by filling the measuring tank with clean water, keeps the fish submerged during the measurement process, reducing stress. Furthermore, the use of a landing net for catching and transporting the fish eliminates the need to empty the fish or handle it by hand, making the measurement more convenient and efficient while avoiding harm to the fish. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the utility model from another angle.

[0019] Figure 3 This is a schematic diagram showing the structure of the water tank for removing the measuring net.

[0020] Figure 4 This is a schematic diagram of the structure of the fish body shape retainer.

[0021] Figure 5 This is a schematic diagram of the structure of the cutting net.

[0022] In the diagram: measuring water tank 10, chute 11, drain valve 12, fish body shape retainer 20, limiting partition 21, support plate 22, scale 23, card seat 24, water permeable hole 25, marking groove 26, indicator 27, landing net 30, net pole 31, net bag 32, stop head 33, weighing device 40, camera 50, bracket 60, main support arm 61, secondary support arm 62, locking bolt 63. Detailed Implementation

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Please refer to Figures 1 to 3 This utility model provides a measuring device for facilitating the collection of fish body characteristics, including a measuring water tank 10 with an open top, a fish body shape holding frame 20, and a landing net 30 for catching fish. There are two fish body shape holding frames 20, which are vertically inserted into the measuring water tank 10. The two fish body shape holding frames 20 are parallel to each other and can move towards each other within the measuring water tank 10. The landing net 30 can be movably placed into the measuring water tank 10 between the two fish body shape holding frames 20. The two fish body shape holding frames 20 are close to each other to limit the fish in the landing net 30, so that the fish in the landing net 30 are parallel to the fish body shape holding frames 20. A scale 23 for measuring the length of the fish is provided on the upper surface of one of the fish body shape holding frames 20 along its length direction. A weighing device 40, which is an electronic balance, is provided at the lower end of the measuring water tank 10. When measuring fish characteristics, after filling the measuring tank 10 with clean water, reset the electronic balance to zero. Manually push the two fish shape holders 20 to the sides inside the measuring tank 10 to separate them. Remove the landing net 30 from the measuring tank 10 and use it to catch the fish to be measured. Then, place the landing net 30 with the fish, along with the fish, into the measuring tank 10 between the two fish shape holders 20. At this point, the weight information of the fish can be obtained through the electronic balance. After recording the fish's weight information, the two fish shape retainers 20 are slowly moved by both hands to bring them closer together, forming a narrow limiting channel that confines the fish in the landing net 30. This keeps the fish parallel to and close to the two fish shape retainers 20 in the measuring tank 10, allowing for manual observation of the fish's position in the limiting channel. The length of the fish can be measured by referring to the scale 23 on the fish shape retainer 20.

[0025] Specifically, the upper end of the measuring tank 10 has parallel grooves 11 on the outer sides of two opposite edges. The two fish shape retainers 20 each include a limiting partition 21 and a support plate 22. The two ends of the support plate 22 are respectively provided with a locking seat 24 that matches the grooves 11 on the two edges of the measuring tank 10. The locking seats 24 on both ends of the support plate 22 are respectively locked in the grooves 11 on the two edges of the measuring tank 10. The limiting partition 21 is vertically installed at the lower end of the support plate 22 and inserted into the measuring tank 10. The limiting partition 21 is parallel to the support plate 22. The scale 23 is set on the upper surface of one of the support plates 22. The support plates 22 of the two fish shape retainers 20 can slide parallel to each other along the grooves 11 so that the two limiting partitions 21 move closer or further away from each other in the measuring tank 10. The limiting partition 21 and the support plate 22 are fixedly installed by bolts. With the sliding groove 11 limiting the support plate 22, the support plate 22 can slide parallel along the upper edge of the measuring water tank 10 without flipping over, ensuring that the limiting partition 21 installed at the lower end of the support plate 22 always moves in a vertical state. When measuring the characteristics of the fish, manually push the support plates 22 of the two fish shape holding frames 20 to move them to the sides inside the measuring tank 10, so that they are far apart from each other. This makes it easier to place the landing net 30 containing the fish into the measuring tank 10 between the two support plates 22. After placing the landing net 30 into the measuring tank 10, slowly move the two support plates 22 with both hands so that the limiting partitions 21 at the lower ends of the two support plates 22 are close to each other. The limiting partitions 21 limit the fish in the landing net 30, keeping the fish parallel to the limiting partitions 21. At this time, the measuring personnel can observe the position of the fish between the two limiting partitions 21 through the water surface in the measuring tank 10, and measure the length of the fish by referring to the scale 23 on the support plate 22.

[0026] Please refer to Figure 1 and Figure 5 The landing net 30 includes net poles 31 and a net bag 32. The net bag 32 is a horizontally arranged elongated flexible net with an open end at the top. Two net poles 31 are respectively positioned on either side of the long side of the open end of the net bag 32. Holding the two net poles 31 close together allows the open end of the net bag 32 to be closed; separating them allows the open end to be opened. The two net poles 31 support the net bag 32, facilitating fish catching while also allowing for easy retraction of the net bag 32. This allows the two limiting partitions 21 to approach each other after the landing net 30 is placed in the measuring tank 10. The elongated flexible net bag 32 allows the caught fish to be positioned parallel to the net poles 31 within the net bag 32, facilitating control of the fish's shape.

[0027] When placing the landing net 30 containing the fish into the measuring tank 10, the two net poles 31 should be placed parallel to the support plate 22. To facilitate the stable placement of the net poles 31 on the upper edge of the measuring tank 10, stop heads 33 are provided at both ends of the net poles 31. After the landing net 30 is placed into the measuring tank 10, the two ends of the net poles 31 can slide and rest on the two opposite edges of the upper end of the measuring tank 10, and the stop heads 33 at both ends of the net poles 31 can stop the outer edges of the edges, limiting the net poles 31 and preventing them from slipping. When the two support plates 22 are manually pushed closer together, the two net poles 31 resting on the upper edge of the measuring tank 10 can be squeezed and moved. The measuring personnel can observe the position of the fish in the measuring tank 10 through the gap between the two net poles 31 and measure the length of the fish by referring to the scale 23 on the support plate 22.

[0028] Please refer to Figure 3 and Figure 4 Furthermore, in order to facilitate the movement of the two limiting partitions 21 within the measuring water tank 10, several through-holes 25 are provided on the opposite sides of the two limiting partitions 21, which can reduce the resistance caused by the water in the measuring water tank 10 when the limiting partitions 21 are moved.

[0029] Furthermore, the side wall of the limiting partition 21 that contacts the fish body is provided with a flexible buffer layer. The flexible buffer layer is made of silicone board or foam board, which can buffer the impact force on the fish body and reduce the collision damage to the fish body.

[0030] Please continue reading. Figure 3 and Figure 4 Furthermore, a marking groove 26 is provided on the upper surface of the support plate 22 on which the scale 23 is provided, or on the side wall facing the net 30. The marking groove 26 extends laterally towards both ends of the support plate 22 and is parallel to the scale 23. Two indicator marks 27 are fixed on the marking groove 26 and can slide freely along the marking groove 26. The indicator marks 27 are set close to the scale 23. The indicator marks 27 are made of brightly colored rubber or plastic blocks and have a certain friction with the marking groove 26. They can be moved along the marking groove 26 by hand. When measuring the length of the fish, the indicator marks 27 can be moved along the marking groove 26 according to the position of the fish in the measuring tank 10. The two indicator marks 27 are moved to the corresponding positions of the head and tail of the fish, respectively. The positions of the head and tail of the fish are marked by the two indicator marks 27, so that the measuring personnel can observe the scale on the scale 23 according to the corresponding positions of the two indicator marks 27, and thus easily measure the length of the fish.

[0031] Please continue reading. Figure 1 and Figure 2Furthermore, to improve the efficiency and convenience of fish length measurement, a camera 50 is installed directly above the measuring tank 10. The camera 50 is vertically positioned and its shooting direction is directly facing the two fish shape retaining frames 20. When measuring fish characteristics, a landing net 30 containing fish is placed into the measuring tank 10, and the two fish shape retaining frames 20 are brought close together to limit the fish. The camera 50 then takes photos of the fish in the measuring tank 10 and the scale 23 on the fish shape retaining frames 20 as evidence. After taking the photos, the measuring personnel can later obtain the length information of the fish by comparing the position of the fish on the scale 23 in the photos.

[0032] A support 60 is vertically mounted on one side of the base of the weighing device 40. The support 60 consists of two interlocking main support arms 61 and auxiliary support arms 62. The main support arm 61 is vertically mounted on one side of the weighing device 40 and has a tubular structure. The auxiliary support arm 62 is vertically inserted into the upper end of the main support arm 61. The upper end of the auxiliary support arm 62 bends and extends directly above the measuring water tank 10. The camera 50 is mounted at the bent end of the auxiliary support arm 62 and is mounted directly above the measuring water tank 10 via the auxiliary support arm 62. The auxiliary support arm 62 can extend and retract along the main support arm 61 to adjust its height. A locking bolt 63 is provided on the side wall of the main support arm 61 near its upper end. The locking bolt 63 is inserted into the main support arm 61 to fix the height of the auxiliary support arm 62.

[0033] Please refer to it again. Figure 1 Furthermore, a drain valve 12 is provided on the outer wall of the measuring water tank 10 near the bottom of the measuring water tank 10. After the measurement is completed, the water in the measuring water tank 10 can be drained by opening the drain valve 12.

[0034] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A measuring device for facilitating the acquisition of fish body features, characterized in that: The utility model provides a measuring water tank with an open upper end, two fish body shape holding racks vertically inserted into the measuring water tank and a scoop net for catching fish bodies, the two fish body shape holding racks are parallel to each other and can move towards each other in the measuring water tank, the scoop net can be put into the measuring water tank between the two fish body shape holding racks, the fish bodies in the scoop net are limited by the two fish body shape holding racks when the two fish body shape holding racks are close to each other, so that the fish bodies in the scoop net are parallel to the fish body shape holding racks, a scale for measuring the length of the fish bodies is arranged on the upper end of one of the fish body shape holding racks along the length direction, and a weighing device is arranged on the lower end of the measuring water tank.

2. The measuring device for facilitating fish body feature collection of claim 1, wherein: Parallel grooves are arranged on the outer sides of the two edges of the upper end of the measuring water tank, the two fish body shape holding racks each include a limiting partition plate and a supporting plate, the two ends of the supporting plate are provided with clamping seats matched with the grooves of the two edges of the measuring water tank, the clamping seats at the two ends of the supporting plate are clamped in the grooves of the two edges of the measuring water tank respectively, the limiting partition plate is vertically installed at the lower end of the supporting plate and inserted into the measuring water tank, and is parallel to the supporting plate, the scale is arranged on the upper end face of one of the supporting plates, and the supporting plates of the two fish body shape holding racks can slide in the grooves parallelly, so that the two limiting partition plates are close to or away from each other in the measuring water tank.

3. The measuring device of claim 2, wherein: A plurality of water-permeable holes are arranged on the two sides of the limiting partition plate.

4. The measuring device of claim 3, wherein: A flexible buffer layer is arranged on the side wall of the limiting partition plate in contact with the fish bodies.

5. The measuring device of claim 2, wherein: A marking groove is arranged on the upper end face of the supporting plate provided with the scale or the side wall of the supporting plate facing the scoop net, the marking groove extends horizontally towards the two ends of the supporting plate and is parallel to the scale, and two indicating marks are clamped in the marking groove and can slide freely in the marking groove.

6. The measuring device for facilitating the collection of fish body characteristics according to any one of claims 1 to 5, characterized in that: The scoop net includes a net rod and a net bag, the net bag is a long strip-shaped flexible net body arranged horizontally, the upper end of the net bag is an open end, the net rod is provided with two, and the two are arranged on the two sides of the long side of the open end of the net bag, the open end of the net bag can be folded by holding the two net rods close to each other, and the open end of the net bag can be opened by holding the two net rods away from each other.

7. The measuring device of claim 6, wherein: The two ends of the net rod are provided with stop heads, after the scoop net is put into the measuring water tank, the two ends of the net rod can be slidably arranged on the upper end of the measuring water tank relative to the two edges, and the stop heads at the two ends of the net rod can stop the edges on the outer sides to limit the net rod.

8. The measuring device of claim 1, wherein: A camera is arranged vertically above the measuring water tank.

9. The measuring device of claim 8, wherein: A support is arranged vertically on one side of the weighing device, the camera is installed on the support, and the height of the support is adjustable.

10. The measuring device of claim 1, wherein: A drain valve is arranged on the outer side wall of the measuring water tank close to the bottom of the measuring water tank.

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