A portable morphological measuring ruler for naked-bellied sturgeon

Abstract

A portable morphological measuring ruler for naked-bellied sturgeon belongs to the field of aquaculture technology. The concave frame has its open end facing downwards. The horizontal end of the concave frame is fixedly connected to a handle. A sliding hole is provided along the length of the right side wall of the concave frame, containing a support mechanism. A threaded hole is provided on the left side wall of the concave frame, threadedly connected to a threaded rod. One end of the threaded rod is rotatably connected to one end of a push plate, and the other end of the push plate is fixedly connected to a second anti-slip pad. The second anti-slip pad corresponds to the first anti-slip pad and is fixed to the inner right wall of the concave frame. A second sliding hole is provided along the length of the horizontal end of the concave frame, containing a length measuring mechanism. The outer wall of the concave frame is rotatably connected to the head measuring ruler. This invention, through its scientific structural design, ensures measurement accuracy and comprehensiveness while also considering ease of operation and protection of the fish. It can meet the needs of morphological measurement of naked-bellied sturgeon in different scenarios and has high practical value.

Description

Technical Field

[0001] This utility model belongs to the field of aquaculture technology, specifically a portable morphological measuring ruler for naked-bellied sturgeon. Background Technology

[0002] my country has become a major sturgeon farming country and the world's largest caviar producer, with annual sturgeon farming production suitable for caviar exceeding 120,000 tons, accounting for over 80% of global sturgeon production. Against the backdrop of the continued development of the sturgeon industry, the naked sturgeon, as a distinctive species within the sturgeon family, has become a focus of attention in scientific research and aquaculture in recent years due to its unique biological characteristics and ecological value.

[0003] In aquaculture production, measurable data such as body length, body height, and head length of naked-bellied sturgeon are typically measured as the basis for their growth, breeding, and genetic evaluation. Current methods involve manually measuring these data using rulers, tape measures, and vernier calipers. However, during live measurements, the naked-bellied sturgeon constantly jumps and sways, and its scaleless body, with its abundant mucus, makes it difficult to fix the measurement accurately using ordinary measuring tools.

[0004] Furthermore, tools such as rulers and vernier calipers are inconvenient to carry and store, resulting in low efficiency and inaccuracy in measuring morphological data of naked-bellied sturgeon, and also easily causing operator fatigue. Therefore, inventing a simple, convenient, and accurate measuring tool is particularly important for promoting and carrying out work such as naked-bellied sturgeon farming, breeding, and genetic evaluation. Utility Model Content

[0005] To address the problems existing in the background art, this utility model provides a portable morphological measuring ruler for naked sturgeon.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a portable morphological measuring ruler for naked-bellied sturgeon, comprising a concave frame, a handle, a first anti-slip pad, a threaded rod, a push plate, a second anti-slip pad, a head measuring ruler, a top support mechanism, and a length measuring mechanism;

[0007] The concave frame has its open end facing downwards. The horizontal end of the concave frame is fixedly connected to the handle. The right side wall of the concave frame has a sliding hole along its length, and a top-supporting mechanism is provided inside the sliding hole. The left side wall of the concave frame has a threaded hole, which is threadedly connected to a threaded rod. One end of the threaded rod is rotatably connected to one end of the push plate, and the other end of the push plate is fixedly connected to an anti-slip pad. The anti-slip pad is correspondingly arranged to the anti-slip pad. The anti-slip pad is fixed on the inner right side wall of the concave frame. The horizontal end of the concave frame has a sliding hole along its length, and a length measuring mechanism is provided inside the sliding hole. The outer wall of the concave frame is rotatably connected to the head measuring ruler.

[0008] The top-supporting mechanism includes a slide rod, a lifting plate, a measuring tape, and a spring.

[0009] The slide rod is vertically arranged and its two ends are respectively fixed in the slide hole 1 on the concave frame. The lifting plate is provided with a slide hole 3, which is slidably connected to the slide rod. The lifting plate is limited and slidably arranged in the slide hole 1. The side wall of the lifting plate is provided with scale lines. The upper end of the lifting plate is fixedly connected to the housing of the measuring tape. The spring is fitted on the slide rod. One end of the spring is fixedly connected to the lifting plate, and the other end of the spring is fixedly connected to the inner wall of the slide hole 1.

[0010] The length measuring mechanism includes a connecting plate, a second measuring tape, a sliding plate, a second sliding rod, and a measuring assembly;

[0011] The side wall of the connecting plate is fixedly connected to one side of the sliding plate, and the upper end of the connecting plate is fixedly connected to the housing of the second measuring tape. The side wall of the sliding plate is provided with a sliding hole four, which is slidably connected to the second sliding rod. The two ends of the second sliding rod are respectively fixed in the sliding hole two. The sliding plate is limited and slidably set in the sliding hole two. The other side of the sliding plate is provided with multiple slots that match the measuring assembly. All slots are inserted and fixed to the measuring assembly. The measuring assembly is fixedly connected to the extended end of the second measuring tape.

[0012] The measuring assembly includes a vertical plate, a connecting block, a telescopic unit, and multiple insertion posts;

[0013] The vertical plate has multiple inserts on its side wall, and each insert corresponds to a slot and is fixedly inserted. The upper end of the vertical plate is fixedly connected to a connecting block, and the connecting block is fixedly connected to the extended end of the measuring tape. The lower end of the vertical plate has a groove, and a sliding groove is provided in the groove. A telescopic unit is provided in the sliding groove.

[0014] The telescopic unit includes a slide bar three, a spring two, a bearing, a connecting rod, and two anti-slip wheels;

[0015] One end of the slide rod three is slidably connected to the slide groove on the vertical plate. A spring two is provided in the slide groove. One end of the spring two is fixedly connected to the inner wall of the slide groove, and the other end of the spring two is fixedly connected to one end of the slide rod three. The other end of the slide rod three is fixedly connected to the outer ring of the bearing. The inner ring of the bearing is sleeved on the connecting rod. Both ends of the connecting rod are rotatably connected to the corresponding anti-slip wheels. The two anti-slip wheels are symmetrically arranged.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. Precise and comprehensive measurement: The top support mechanism can accurately measure the width and vertical height of the fish head, while the length measuring mechanism uses anti-slip wheels to fit the fish body and correct any bends, ensuring accurate measurement of the straight length of the fish body. The head measuring ruler can directly read the length of the fish head, achieving comprehensive coverage of key morphological parameters of the naked sturgeon.

[0018] 2. Convenient and flexible operation: The concave frame provides a stable load-bearing frame, and the handle design makes it easy to adjust the position by hand; the measuring assembly and the slide plate can be quickly disassembled and assembled through the plug and slot, making it easy to carry; each sliding guide structure (such as slide bar one and slide bar two) ensures smooth movement of the components, adapting to the measurement needs of naked-bellied sturgeon of different body sizes, and taking into account both field and laboratory use.

[0019] 3. Protecting the fish's safety: Anti-slip mat 1 and anti-slip mat 2 are made of flexible anti-slip material, and springs 1 and 2 use elastic cushioning to avoid pressure damage to the fish's body from rigid contact; the rolling design of the anti-slip wheels reduces friction with the fish's body, effectively protecting the fish's skin and meeting the protection requirements when measuring aquatic organisms such as naked sturgeon.

[0020] In summary, this utility model, through its scientific structural design, ensures both the accuracy and comprehensiveness of measurements while also taking into account ease of operation and protection of the fish. It can meet the needs of morphological measurement of naked-bellied sturgeon in different scenarios and has high practical value. Attached Figure Description

[0021] Figure 1 This is a front view of the present invention;

[0022] Figure 2 This is the right view of this utility model;

[0023] Figure 3 This is a schematic diagram showing the connection relationship between the measuring assembly and the telescopic unit of this utility model;

[0024] Figure 4 This is a schematic diagram of the usage state of this utility model. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0026] This embodiment describes a portable morphological measuring ruler for naked-bellied sturgeon, including a concave frame 1, a handle 2, an anti-slip pad 1 3, a threaded rod 8, a push plate 9, an anti-slip pad 2 10, a head measuring ruler 22, a top support mechanism, and a length measuring mechanism.

[0027] The concave frame 1 has its open end facing downwards. The horizontal end of the concave frame 1 is fixedly connected to the handle 2. The right side wall of the concave frame 1 has a sliding hole along its length, and a top-supporting mechanism is provided inside the sliding hole. The left side wall of the concave frame 1 has a threaded hole, which is threadedly connected to a threaded rod 8. One end of the threaded rod 8 is rotatably connected to one end of the push plate 9. The other end of the push plate 9 is fixedly connected to an anti-slip pad 10. The anti-slip pad 10 is correspondingly arranged to the anti-slip pad 3. The anti-slip pad 3 is fixed on the inner right side wall of the concave frame 1. The horizontal end of the concave frame 1 has a sliding hole along its length, and a length measuring mechanism is provided inside the sliding hole. The outer wall of the concave frame 1 is rotatably connected to the head measuring ruler 22.

[0028] The top-supporting mechanism includes a slide bar 4, a lifting plate 5, a measuring tape 6, and a spring 7;

[0029] The slide rod 4 is vertically arranged and its two ends are respectively fixed in the slide hole 1 on the concave frame 1. The lifting plate 5 is provided with a slide hole 3, which is slidably connected to the slide rod 4. The lifting plate 5 is limited and slidably arranged in the slide hole 1. The side wall of the lifting plate 5 is provided with scale lines. The upper end of the lifting plate 5 is fixedly connected to the housing of the measuring tape 6. The spring 7 is fitted on the slide rod 4. One end of the spring 7 is fixedly connected to the lifting plate 5, and the other end of the spring 7 is fixedly connected to the inner wall of the slide hole 1.

[0030] The length measuring mechanism includes a connecting plate 11, a second measuring tape 12, a sliding plate 13, a second sliding rod 23, and a measuring assembly;

[0031] The side wall of the connecting plate 11 is fixedly connected to one side of the slide plate 13, and the upper end of the connecting plate 11 is fixedly connected to the housing of the second measuring tape 12. The side wall of the slide plate 13 is provided with a sliding hole four, which is slidably connected to the second sliding rod 23. The two ends of the second sliding rod 23 are respectively fixed in the second sliding hole. The slide plate 13 is limited and slidably disposed in the second sliding hole. The other side of the slide plate 13 is provided with multiple slots that match the measuring assembly. All slots are inserted and fixed to the measuring assembly. The measuring assembly is fixedly connected to the extended end of the second measuring tape 12.

[0032] The measuring assembly includes a vertical plate 14, a connecting block 16, a telescopic unit, and multiple insertion posts 15;

[0033] The vertical plate 14 has multiple inserts 15 on its side wall. Each insert 15 corresponds to a slot and is inserted and fixed. The upper end of the vertical plate 14 is fixedly connected to the connecting block 16. The connecting block 16 is fixedly connected to the extended end of the measuring tape 12. The lower end of the vertical plate 14 has a groove with a sliding groove and a telescopic unit.

[0034] The telescopic unit includes a slide bar 17, a spring 18, a bearing 19, a connecting rod 20, and two anti-slip wheels 21;

[0035] One end of the slide rod 17 is slidably connected to the slide groove on the vertical plate 14. A spring 18 is provided in the slide groove. One end of the spring 18 is fixedly connected to the inner wall of the slide groove, and the other end of the spring 18 is fixedly connected to one end of the slide rod 17. The other end of the slide rod 17 is fixedly connected to the outer ring of the bearing 19. The inner ring of the bearing 19 is sleeved on the connecting rod 20. Both ends of the connecting rod 20 are rotatably connected to the corresponding anti-slip wheels 21. The two anti-slip wheels 21 are symmetrically arranged.

[0036] This invention is designed for the morphological measurement needs of naked-bellied sturgeon. It precisely measures the sturgeon's head, height, width, and length by fixing the head, while employing an elastic buffer design to prevent damage to the fish. In use, the sturgeon is first placed on a flat platform. Holding the handle 2, the open end of the concave frame 1 is brought into contact with the platform surface. At this point, the fish head is naturally positioned between the two side walls of the concave frame 1. The handle 2 provides a comfortable grip for the operator, facilitating adjustments to the device's position and ensuring stability during measurement. Next, the fish head is fixed and its width is measured. The sliding rod 4 in the top-mounted mechanism is vertically fixed within the sliding hole 1 on the right side wall of the concave frame, providing a vertical sliding guide for the lifting plate 5. This ensures that the lifting plate 5 can only move vertically. The lifting plate 5 is slidably connected to the sliding rod 4 through the sliding hole 3, with its lower end in contact with the top of the fish head. The scale lines on the side wall directly display the fish head width, and its limiting sliding... The design avoids lateral deviation and ensures accurate readings. Spring 7 is fitted onto slide rod 4 (the elastic coefficient of spring 7 can be selected according to actual conditions to ensure a close fit with the fish without causing damage due to excessive elasticity). Its two ends are connected to lifting plate 5 and the inner wall of sliding hole 1, respectively. Utilizing elastic deformation, it adapts to the height difference of the fish's head. When the fish's head is high, the spring compresses; when the fish's head is low, the spring rebounds, always pushing lifting plate 5 to maintain a close fit with the top of the fish's head, while avoiding rigid contact that could cause pressure damage to the fish. The housing of measuring tape 6 (measuring tape 6 is existing technology) is fixed to the upper end of lifting plate 5. The extended end of the measuring tape can be pulled down to the platform surface, depending on the height position of lifting plate 5. The vertical height of the fish head is directly read. The threaded rod 8 engages with the threaded hole on the left side wall of the concave frame 1, and horizontal extension and retraction are achieved by rotation. One end of the push plate 9 is rotatably connected to the threaded rod 8, ensuring that the push plate 9 only moves horizontally and does not rotate with the threaded rod 8. The other end is fixed with anti-slip pad 2 10. Anti-slip pad 1 3 is fixed to the inner right side wall of the concave frame 1. The material is flexible anti-slip material. The two are set up to form a clamping space. Rotating the threaded rod 8 pushes the push plate 9, causing anti-slip pad 2 10 to move closer to anti-slip pad 1 3, and finally clamps and fixes the two sides of the fish head, which not only prevents the fish head from shifting during measurement, but also protects the fish skin through flexible contact. Then the length of the fish body is measured. The sliding rod 23 is horizontally fixed in the sliding hole 2 at the horizontal end of the concave frame 1, providing a lateral sliding guide for the slide plate 13. The slide plate 13 is slidably connected to the sliding rod 23 through the sliding hole 4, and the limit is set in the sliding hole 2. It can be adjusted laterally according to the position of the fish body. Multiple slots on its side wall are used to fix the measuring assembly and realize flexible positioning of the measurement starting point. The connecting plate 11 connects the slide plate 13 and the measuring tape 12 (the measuring tape 12 is the prior art) and moves synchronously to ensure that the measuring reference of the measuring tape 12 is consistent with the position of the slide plate 13. The shell of the measuring tape 12 is fixed to the upper end of the connecting plate 11, and the extended end of the measuring tape is connected to the measuring assembly to record the distance from the fish head to the fish tail, i.e. the length of the fish body.In the measuring assembly, the vertical plate 14 serves as the main frame, and the groove in the lower end provides installation space for the telescopic unit. Multiple inserts 15 on the side wall connect to slots in the sliding plate 13, enabling quick fixing and disassembly of the measuring assembly and the sliding plate for easy carrying. A connecting block 16 is fixed to the upper end of the vertical plate 14, connecting the extended end of the measuring tape 12, allowing the measuring tape 12 to extend synchronously when the vertical plate moves, directly recording the moving distance. One end of the telescopic unit's sliding rod 17 is slidably connected to the groove in the vertical plate 14, providing a guide for the telescopic unit and adapting to changes in the fish's back height. A spring 18 (the spring coefficient of which can be selected based on actual conditions to ensure a close fit with the fish without causing damage due to excessive elasticity) is installed in the groove, with both ends connected to the inner wall of the groove and the sliding rod 17 respectively. Elastic force pushes the sliding rod 17 outwards, ensuring the anti-slip wheel 21 remains in close contact with the fish's back while buffering contact pressure and preventing pressure on the fish. The bearing 19 is externally... The ring is fixed to the lower end of the sliding rod 17, and the inner ring is fitted with the connecting rod 20, allowing the connecting rod 20 to rotate freely. The anti-slip wheels 21 connected to both ends of the connecting rod 20 are symmetrically arranged, and the wheel surfaces are made of anti-slip rubber. On the one hand, this reduces friction damage to the fish body through rolling; on the other hand, it generates a slight corrective force on the fish body when moving towards the tail, causing the curved parts to naturally extend to a near-straight state, ensuring that the measured length is the straight length of the fish body rather than the curved length, thus improving data accuracy. Finally, the head measuring ruler 22 is rotatably connected to the outer wall of the concave frame 1. During measurement, it can be rotated to be parallel to the length direction of the fish head, directly reading the length of the fish head. When not in use, it can be folded for storage, saving space. Overall, this measuring ruler uses a collaborative logic of "fixing-fitting-adapting-measuring," with elastic components ensuring flexible fit between each measuring part and the fish body, and a sliding guide structure ensuring stable measurement direction. The overall design improves the portability and operational flexibility of the device, making it suitable for various scenarios such as fieldwork or laboratory settings.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A portable morphological measuring ruler for naked-bellied sturgeon, characterized in that: Includes a concave frame (1), a handle (2), an anti-slip pad one (3), a threaded rod (8), a push plate (9), an anti-slip pad two (10), a head measuring ruler (22), a top support mechanism, and a length measuring mechanism; The concave frame (1) has its open end facing downwards. The horizontal end of the concave frame (1) is fixedly connected to the handle (2). The right side wall of the concave frame (1) has a sliding hole I along the length direction. A top-supporting mechanism is provided in the sliding hole I. The left side wall of the concave frame (1) has a threaded hole. The threaded hole is threadedly connected to the threaded rod (8). One end of the threaded rod (8) is rotatably connected to one end of the push plate (9). The other end of the push plate (9) is fixedly connected to the anti-slip pad II (10). The anti-slip pad II (10) is set correspondingly to the anti-slip pad I (3). The anti-slip pad I (3) is fixed on the inner right side wall of the concave frame (1). The horizontal end of the concave frame (1) has a sliding hole II along the length direction. A length measuring mechanism is provided in the sliding hole II. The outer wall of the concave frame (1) is rotatably connected to the head measuring ruler (22).

2. The portable morphological measuring ruler for naked-bellied sturgeon according to claim 1, characterized in that: The top-supporting mechanism includes a slide bar (4), a lifting plate (5), a measuring tape (6), and a spring (7). The slide rod (4) is vertically set and its two ends are respectively fixed in the sliding hole (1) on the concave frame (1). The lifting plate (5) is provided with a sliding hole (3), which is slidably connected to the slide rod (4). The lifting plate (5) is limited and slidably set in the sliding hole (1). The side wall of the lifting plate (5) is provided with scale lines. The upper end of the lifting plate (5) is fixedly connected to the housing of the measuring tape (6). The spring (7) is fitted on the slide rod (4). One end of the spring (7) is fixedly connected to the lifting plate (5), and the other end of the spring (7) is fixedly connected to the inner wall of the sliding hole (1).

3. The portable morphological measuring ruler for naked-bellied sturgeon according to claim 1, characterized in that: The length measuring mechanism includes a connecting plate (11), a second measuring tape (12), a sliding plate (13), a second sliding rod (23), and a measuring assembly; The side wall of the connecting plate (11) is fixedly connected to one side of the slide plate (13), and the upper end of the connecting plate (11) is fixedly connected to the housing of the second measuring tape (12). The side wall of the slide plate (13) is provided with a sliding hole four, which is slidably connected to the second sliding rod (23). The two ends of the second sliding rod (23) are respectively fixed in the second sliding hole. The slide plate (13) is limited and slidably set in the second sliding hole. The other side of the slide plate (13) is provided with multiple slots that match the measuring assembly. All slots are plugged into and fixed to the measuring assembly. The measuring assembly is fixedly connected to the extended end of the measuring tape of the second measuring tape (12).

4. The portable morphological measuring ruler for naked-bellied sturgeon according to claim 3, characterized in that: The measuring assembly includes a vertical plate (14), a connecting block (16), a telescopic unit, and multiple inserts (15). The vertical plate (14) has multiple inserts (15) on its side wall. The multiple inserts (15) correspond one-to-one with multiple slots and are inserted and fixed. The upper end of the vertical plate (14) is fixedly connected to the connecting block (16). The connecting block (16) is fixedly connected to the extended end of the measuring tape of the second measuring tape (12). The lower end of the vertical plate (14) has a groove. The groove has a sliding groove. The sliding groove has a telescopic unit.

5. The portable morphological measuring ruler for naked-bellied sturgeon according to claim 4, characterized in that: The telescopic unit includes a slide bar three (17), a spring two (18), a bearing (19), a connecting rod (20), and two anti-slip wheels (21). One end of the slide rod (17) is slidably connected to the slide groove on the vertical plate (14). A spring (18) is provided in the slide groove. One end of the spring (18) is fixedly connected to the inner wall of the slide groove. The other end of the spring (18) is fixedly connected to one end of the slide rod (17). The other end of the slide rod (17) is fixedly connected to the outer ring of the bearing (19). The inner ring of the bearing (19) is sleeved on the connecting rod (20). Both ends of the connecting rod (20) are rotatably connected to the corresponding anti-slip wheels (21). The two anti-slip wheels (21) are symmetrically arranged.

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