A device for sampling water in a mandarin fish culture water body for parasitic control
The automated sampling device, designed with a drive motor-driven gear system and locking block, solves the problems of sampling errors and workload caused by manual operation, and achieves efficient and accurate water sampling and rapid cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANCHANG UNIV
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-31
AI Technical Summary
Existing water sampling devices for mandarin fish and perch farming require manual operation of the positioning check mechanism in scenarios involving multiple or emergency sampling. This increases the workload, consumes physical strength, and makes it difficult to ensure consistency in sampling speed and force, resulting in sampling errors and inaccurate test results.
The system employs a drive motor to drive a gear system, which uses gear meshing to move the threaded rod and piston plate, thereby achieving automated sampling. Combined with the design of a locking block and a return spring, the operation process is simplified and the stability and accuracy of the sampling process are ensured.
It eliminates the need for manual operation, improving sampling efficiency and accuracy, reducing sampling errors, ensuring the reliability of test results, and enabling rapid cleaning while reducing manpower consumption.
Smart Images
Figure CN224581206U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water sampling technology, and specifically relates to a water sampling device for mandarin fish and perch farming for parasite control. Background Technology
[0002] The mandarin fish and perch aquaculture water sampling device for parasite control is used to collect water samples from mandarin fish and perch aquaculture to detect parasites. It typically consists of a sampling cylinder, sampling needles, piston, pull rod, and floating air drum. For example, some devices have sampling needles arranged in a semi-circle with adjacent needles at a 90° angle inside the sampling cylinder. Inside the needles is a piston, which is connected to a top plate via a pull rod. The cylinder also contains a floating air drum, whose buoyancy allows the central pull rod to rise, which in turn pushes the top plate through a lifting plate, causing the piston to draw water samples.
[0003] Announcement No. "CN218330765U" discloses a water sampler, including a sampling mechanism. A positioning check mechanism is installed on the outer side of the top of the sampling mechanism, and an extraction mechanism is installed inside the sampling mechanism. During sampling, the operator inserts the index and middle fingers of one hand into two pull rings respectively, and uses the thumb to slightly press down on the installation tube. This causes the pull rings to rotate upwards, driving the stop rod fixedly connected to them to rotate outwards towards the installation tube, disengaging the end of the stop rod from the extraction mechanism. This releases the positioning of the extraction mechanism, facilitating the upward pulling of the pull rod, which moves the rubber stopper upwards, extracting the water sample into the storage tube. Similarly, releasing the pull rings allows them to reset under the action of the support spring, and the engagement of the stop rod with the extraction mechanism positions the extraction mechanism, preventing slippage and leakage of the water sample.
[0004] While the aforementioned utility model can position the extraction mechanism and prevent it from sliding and causing water sample leakage, each time the positioning check mechanism is used, the pull ring must be manually pulled to position the extraction mechanism by driving the stop rod. In scenarios involving multiple sampling or emergency sampling, repeated operation can easily delay the sampling opportunity and increase the workload of operators. Moreover, the extraction mechanism relies on manual pulling of the rod to complete the water sample extraction, which is not only physically demanding but also makes it difficult to ensure the consistency of extraction speed and force, resulting in errors in the amount of water sample collected and affecting the accuracy and reliability of subsequent test results. Utility Model Content
[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a water sampling device for mandarin fish and perch farming for parasite control. This device solves the problem that each time the positioning check mechanism is used, the pull ring must be manually pulled to position the extraction mechanism by driving the stop rod. In scenarios involving multiple or emergency sampling, repeated operation can easily delay the sampling opportunity and increase the workload of operators. Moreover, the extraction mechanism relies on manual pulling of the rod to complete the water sample extraction, which is not only physically demanding but also makes it difficult to ensure the consistency of extraction speed and force, resulting in errors in the water sample collection volume and affecting the accuracy and reliability of subsequent test results.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A water sampling device for mandarin fish and perch farming for parasite control includes a sampling cylinder, a sampling tube fixedly connected to the bottom of the sampling cylinder, a fixed plate movably connected to the bottom of the sampling cylinder, a piston plate slidably connected inside the sampling cylinder, a sampling component installed on the top of the fixed plate, and assembly blocks symmetrically fixedly connected to the bottom of the fixed plate, with an installation component installed inside the assembly blocks. The sampling assembly includes a rotating column, a threaded hole, a threaded rod, an anti-detachment block, a drive gear, a drive motor, and a driven gear. The rotating column is rotatably connected to the top of a fixed plate. A threaded hole is formed at the top of the rotating column, penetrating the fixed plate. A threaded rod is threaded into the threaded hole, extending into the sampling cylinder and rotatably connected to a piston plate. An anti-detachment block is fixedly connected to the top of the threaded rod. A driven gear is fixedly fitted onto the outer side of the rotating column. A drive motor is mounted on the top of the fixed plate, and a drive gear is rotatably connected to the top of the fixed plate. The output end of the drive motor is fixedly connected to the drive gear. The diameter of the drive gear is larger than that of the driven gear. The drive gear and driven gear mesh with each other, eliminating the need for manual operation, saving manpower, improving sampling efficiency, and ensuring a stable and controllable sampling process. This avoids sampling errors caused by uneven force and speed during manual operation, guaranteeing sampling accuracy.
[0007] As a preferred technical solution, the installation components include a cavity, a return spring, a movable plate, and a locking block. The assembly block has a cavity inside, with a return spring fixedly connected to one side of the cavity. A movable plate is fixedly connected to the other end of the return spring, and a locking block is fixedly connected to the other side of the movable plate. The locking block extends beyond the side of the assembly block, and its bottom has a slope. Fixed blocks are symmetrically fixedly connected to the outer wall of the sampling cylinder. An assembly groove is formed on the top of the fixed block, and the assembly block and assembly groove are interlocked. A locking groove is formed on one side of the assembly groove, and the locking block and locking groove are snap-fitted together. An unlocking block is slidably connected inside the locking groove, and its other end extends beyond the outer side of the fixed block. Limiting grooves are formed on both sides of the locking groove, and limiting blocks are fixedly connected to both sides of the unlocking block. The limiting blocks and limiting grooves are slidably connected. This method, while requiring complex tools and cumbersome steps, allows the sampling cylinder to be disassembled quickly and proceed rapidly to the cleaning stage, greatly improving cleaning efficiency, reducing waiting time, and enabling the sampling cylinder to be put into use quickly.
[0008] As a preferred technical solution, a connecting pipe is fixedly connected to the bottom of the fixing plate. The connecting pipe is inserted into the inside of the sampling tube, which does not require precise manual calibration and forms a tight seal. This prevents water sample leakage or the infiltration of external impurities, reduces fluid resistance, ensures smooth water flow during sampling, and reduces the risk of pipeline blockage.
[0009] As a preferred technical solution, the inner wall of the sampling cylinder is symmetrically provided with guide grooves, and the outer wall of the piston plate is symmetrically fixedly connected with guide blocks. The guide grooves and guide blocks are slidably connected, which can force the piston plate to move linearly along the axial direction of the sampling cylinder, avoid piston tilting or radial displacement caused by uneven force, and ensure that the piston movement trajectory is accurate and controllable during the sampling process.
[0010] In summary, the present invention has the following main advantages: First, in this utility model, the sampling tube at one end of the sampling cylinder is inserted into the water, the drive motor is started, and the drive gear is controlled to rotate. The drive gear drives the driven gear to rotate, thereby causing the driven gear to drive the rotating column to rotate. At the same time, the threaded hole follows the rotation, and the threaded hole and the threaded rod perform threaded transmission, thereby controlling the threaded rod to drive the piston plate to rise and perform water sampling. No manual operation is required, saving manpower, improving sampling efficiency, and ensuring that the sampling process is stable and controllable. It avoids sampling errors caused by uneven force and speed during manual operation and ensures sampling accuracy. Secondly, in this utility model, the sampling tube is combined with the bottom of the fixing plate, and the assembly block is inserted into the assembly groove. During the insertion process, the squeezing force applies pressure to the inclined surface of the locking block, causing the locking block to drive the moving plate to press against the return spring. The return spring is compressed, and at the same time, the locking block retracts into the cavity. When the locking block moves to the locking groove, the locking block pops out and engages with the locking groove for fixation. Without complicated tools and cumbersome steps, the sampling tube can be disassembled in a short time and quickly enter the cleaning process, which greatly improves the cleaning efficiency, reduces waiting time, and allows the sampling tube to be put into use quickly. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is the utility model Figure 1 Enlarged view of part A; Figure 3 This is a cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 4 This is the utility model Figure 3 Enlarged view of part B.
[0012] Reference numerals: 1. Sampling cylinder; 2. Fixing plate; 3. Sampling tube; 4. Piston plate; 5. Fixing block; 6. Assembly block; 7. Assembly groove; 8. Sampling assembly; 81. Rotating column; 82. Threaded hole; 83. Threaded rod; 84. Anti-detachment block; 85. Drive gear; 86. Drive motor; 87. Driven gear; 9. Mounting assembly; 91. Cavity; 92. Return spring; 93. Moving plate; 94. Locking block; 10. Locking groove; 11. Unlocking block; 12. Limiting block; 13. Limiting groove; 14. Connecting pipe; 15. Guide block; 16. Guide groove. Detailed Implementation
[0013] Example refer to Figures 1 to 4 The water sampling device for mandarin fish and perch farming for parasite control described in this embodiment includes a sampling cylinder 1, a sampling tube 3 fixedly connected to the bottom of the sampling cylinder 1, a fixed plate 2 movably connected to the bottom of the sampling cylinder 1, a piston plate 4 slidably connected inside the sampling cylinder 1, a sampling component 8 installed on the top of the fixed plate 2, and assembly blocks 6 symmetrically fixedly connected to the bottom of the fixed plate 2, with an installation component 9 installed inside the assembly blocks 6. Sampling assembly 8 includes a rotating column 81, a threaded hole 82, a threaded rod 83, an anti-detachment block 84, a drive gear 85, a drive motor 86, and a driven gear 87. The rotating column 81 is rotatably connected to the top of the fixed plate 2. A threaded hole 82 is formed at the top of the rotating column 81, penetrating the fixed plate 2. A threaded rod 83 is threadedly connected inside the threaded hole 82. The bottom of the threaded rod 83 extends into the sampling cylinder 1 and is rotatably connected to the piston plate 4. An anti-detachment block 84 is fixedly connected to the top of the threaded rod 83. A driven gear 87 is fixedly sleeved on the outside of the rotating column 81. The drive motor 86 is mounted on the top of the fixed plate 2. The top of the fixed plate 2 rotates... A drive gear 85 is connected, and the output end of the drive motor 86 is fixedly connected to the drive gear 85. The diameter of the drive gear 85 is larger than the diameter of the driven gear 87. The drive gear 85 and the driven gear 87 mesh with each other. The sampling tube 3 at one end of the sampling cylinder 1 is inserted into the water. The drive motor 86 is started to control the drive gear 85 to rotate. The drive gear 85 drives the driven gear 87 to rotate, thereby causing the driven gear 87 to drive the rotating column 81 to rotate. At the same time, the threaded hole 82 follows the rotation. The threaded hole 82 and the threaded rod 83 perform threaded transmission, thereby controlling the threaded rod 83 to drive the piston plate 4 to rise and perform water sampling.
[0014] refer to Figure 4 The mounting assembly 9 includes a cavity 91, a return spring 92, a moving plate 93, and a locking block 94. The assembly block 6 has a cavity 91 inside. A return spring 92 is fixedly connected to one side of the cavity 91. A moving plate 93 is fixedly connected to the other end of the return spring 92. A locking block 94 is fixedly connected to the other side of the moving plate 93. The locking block 94 extends beyond the side of the assembly block 6. The bottom of the locking block 94 has a slope. Fixing blocks 5 are symmetrically fixedly connected to the outer wall of the sampling cylinder 1. An assembly groove 7 is formed on the top of the fixing block 5. The assembly block 6 and the assembly groove 7... For insertion, a locking groove 10 is provided on one side of the assembly groove 7. The locking block 94 is snapped into the locking groove 10. The sampling cylinder 1 and the bottom of the fixing plate 2 are joined together, so that the assembly block 6 is inserted into the assembly groove 7. During the insertion process, the squeezing force applies pressure to the inclined surface of the locking block 94, so that the locking block 94 drives the moving plate 93 to press against the return spring 92. The return spring 92 is compressed, and at the same time the locking block 94 retracts into the cavity 91. When the locking block 94 moves to the locking groove 10, the locking block 94 pops out and snaps into the locking groove 10 for fixation.
[0015] refer to Figure 4An unlocking block 11 is slidably connected inside the locking groove 10. The other end of the unlocking block 11 extends outward from the outside of the fixing block 5. Limiting grooves 13 are opened on both sides inside the locking groove 10. Limiting blocks 12 are fixedly connected to both sides of the unlocking block 11. The limiting blocks 12 and the limiting grooves 13 are slidably connected. Pushing the unlocking block 11 causes it to slide inside the locking groove 10. At the same time, the unlocking block 11 drives the limiting blocks 12 to slide inside the limiting grooves 13. The unlocking block 11 pushes the locking block 94, causing the locking block 94 to drive the moving plate 93 to press against the return spring 92. The return spring 92 is compressed, and at the same time, the locking block 94 retracts into the cavity 91. The locking block 94 and the locking groove 10 are no longer engaged.
[0016] refer to Figure 4 A connecting pipe 14 is fixedly connected to the bottom of the fixing plate 2. The connecting pipe 14 is inserted into the inside of the sampling cylinder 1. The sampling cylinder 1 is merged with the bottom of the fixing plate 2 so that the connecting pipe 14 at the bottom of the fixing plate 2 is inserted into the inside of the sampling cylinder 1.
[0017] refer to Figure 3 The inner wall of the sampling cylinder 1 is symmetrically provided with guide grooves 16, and the outer wall of the piston plate 4 is symmetrically fixedly connected with guide blocks 15. The guide grooves 16 and guide blocks 15 are slidably connected. When the threaded rod 83 drives the piston plate 4 to rise, the piston plate 4 drives the guide blocks 15 to slide inside the guide grooves 16.
[0018] Operating principle and advantages: First, the sampling cylinder 1 and the bottom of the fixing plate 2 are joined together, so that the assembly block 6 is inserted into the assembly groove 7. During the insertion process, the squeezing force applies pressure to the inclined surface of the locking block 94, so that the locking block 94 drives the moving plate 93 to press against the return spring 92. The return spring 92 is compressed, and at the same time, the locking block 94 retracts into the cavity 91. When the locking block 94 moves to the locking groove 10, the locking block 94 pops out and engages with the locking groove 10 to fix it, thus completing the assembly of the sampling device. Then, the sampling tube 3 at one end of the sampling cylinder 1 is inserted into the water. The drive motor 86 is started, and the drive gear 85 is controlled to rotate. The drive gear 85 drives the driven gear 87 to rotate, so that the driven gear 87 drives the rotating column 81 to rotate. At the same time, the threaded hole 82 rotates. The threaded hole 82 and the threaded rod 83 perform threaded transmission, thereby controlling the threaded rod 83 to drive the piston plate 4 to rise and perform water sampling. This invention eliminates the need for manual operation, saving manpower, improving sampling efficiency, and ensuring a stable and controllable sampling process. It avoids sampling errors caused by uneven force and speed during manual operation, thus guaranteeing sampling accuracy.
Claims
1. A device for sampling a fish farming water body for the control of parasites, comprising a sampling tube (1), characterised in that: The bottom of the sampling cylinder (1) is fixedly connected to a sampling tube (3), the bottom of the sampling cylinder (1) is movably connected to a fixing plate (2), the inside of the sampling cylinder (1) is slidably connected to a piston plate (4), the top of the fixing plate (2) is equipped with a sampling component (8), the bottom of the fixing plate (2) is symmetrically fixedly connected to an assembly block (6), and the inside of the assembly block (6) is equipped with an installation component (9). The sampling assembly (8) includes a rotating column (81), a threaded hole (82), a threaded rod (83), an anti-detachment block (84), a drive gear (85), a drive motor (86), and a driven gear (87). The rotating column (81) is rotatably connected to the top of the fixed plate (2). The rotating column (81) has a threaded hole (82) at its top, which penetrates the fixed plate (2). The threaded rod (83) is threadedly connected inside the threaded hole (82). The bottom of the threaded rod (83) extends into the sampling cylinder (1) and is rotatably connected to the piston plate (4). The anti-detachment block (84) is fixedly connected to the top of the threaded rod (83). The driven gear (87) is fixedly sleeved on the outside of the rotating column (81). The drive motor (86) is installed on the top of the fixed plate (2). The drive gear (85) is rotatably connected to the top of the fixed plate (2). The output end of the drive motor (86) is fixedly connected to the drive gear (85).
2. The device for sampling water in a mandarin fish and perch culture water body for parasitic prevention according to claim 1, characterized in that: The diameter of the drive gear (85) is larger than the diameter of the driven gear (87), and the drive gear (85) and the driven gear (87) mesh with each other.
3. The device for sampling water in a mandarin fish and perch culture water body for parasitic prevention according to claim 1, characterized in that: The mounting assembly (9) includes a cavity (91), a return spring (92), a moving plate (93), and a locking block (94). The assembly block (6) has a cavity (91) inside. A return spring (92) is fixedly connected to one side of the cavity (91). A moving plate (93) is fixedly connected to the other end of the return spring (92). A locking block (94) is fixedly connected to the other side of the moving plate (93). The locking block (94) extends out of the side end of the assembly block (6) from the other side. The bottom of the locking block (94) has a slope.
4. The device for sampling water in a mandarin fish and perch culture water body for parasitic prevention according to claim 3, characterized in that: The sampling tube (1) is symmetrically fixedly connected to a fixing block (5) on its outer side wall. The fixing block (5) has an assembly groove (7) on its top. The assembly block (6) and the assembly groove (7) are inserted into each other. A locking groove (10) is opened on one side inside the assembly groove (7). The locking block (94) and the locking groove (10) are snapped together.
5. The device for sampling a fish farming water body for the control of parasites according to claim 4, characterized in that: The locking groove (10) is slidably connected to the unlocking block (11), and the other end of the unlocking block (11) extends out of the outside of the fixing block (5). Limiting grooves (13) are opened on both sides of the locking groove (10), and limiting blocks (12) are fixedly connected on both sides of the unlocking block (11). The limiting blocks (12) and the limiting grooves (13) are slidably connected.
6. The device for sampling a fish farming water body for the control of parasites according to claim 1, characterized in that: The bottom of the fixing plate (2) is fixedly connected to a connecting pipe (14), and the connecting pipe (14) is inserted into the sampling cylinder (1).
7. The device for sampling water in a mandarin fish and perch culture water body for parasitic prevention according to claim 1, characterized in that: The sampling cylinder (1) has symmetrical guide grooves (16) on its inner wall, and the piston plate (4) has guide blocks (15) symmetrically fixedly connected to its outer wall. The guide grooves (16) and guide blocks (15) are slidably connected.