Anti-blocking plankton collection net
By designing a filter cover recessed into the collection network on the plankton collection network, the problem of traditional collection netease being blocked by floating objects is solved, and adaptation to different sizes of collection networks and more comprehensive plankton collection is achieved.
Patent Information
- Application Number
- CN202422062229.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-26
AI Technical Summary
Traditional plankton collection networks are easily blocked by floating objects such as leaves, branches, duckweed, plastics, etc. during use, and ordinary anti-blocking screens cannot adapt to collection network ports of different sizes, resulting in difficulty in collecting plankton.
An anti-blocking plankton collection network is designed, and a filter net cover with an internal recessed collection net is adopted. The filter net cover includes a rotating frame and a filter net laid on the rotating frame, which can filter out impurities and float and adapt to a collection net of different diameters and sizes.
Effectively prevent floating objects from entering the collection network, avoid blockage, and be able to collect larger plankton, achieving more comprehensive collection of plankton species.
Smart Images
Figure CN222941545U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of biological sampling, in particular to an anti-clogging plankton collection net. Background Art
[0002] Marine plankton is a marine organism suspended in the water layer and often moves with the water flow, including marine phytoplankton and marine zooplankton. There are many kinds of plankton in my country's coastal areas. Common phytoplankton include horn algae, round sieve algae, root tube algae, horn algae, etc. Other plankton include subthick true stinging Daphnia, exquisite true stinging Daphnia, fat arrow worms, medium-sized shrimp, broad-fronted false krill, twin jellyfish, etc. Plankton is a major member of marine life with many species and large quantities. Its research is of great significance to fishery production and the basic theory of marine science. Some plankton has the ability to purify and enrich environmental pollutants. The method adopted for collecting phytoplankton samples is mainly to use a plankton collection net to collect. The collection method is to connect the plankton collection net to the top of the pole with a pull rope, and hold the tail section of the pole to slowly drag the plankton collection net in the water at a speed of 20-30cm per second in an "∞" shape. The general time is 5 to 10 minutes.
[0003] Several problems have been found in the use of traditional plankton nets: 1. During the process of collecting plankton, floating objects such as leaves, branches, duckweed, and plastic often enter the plankton net, blocking the bottom collection tube, making it difficult to collect plankton; 2. Ordinary anti-blocking screens cannot adapt to the different sizes of collection net openings. Therefore, there is an urgent need for an anti-blocking plankton collection net that can solve the above problems. Utility Model Content
[0004] In order to solve the above problems, the utility model proposes an anti-clogging plankton collection net, including: a collection net and a collection tube, the bottom of the collection net is open and fixedly connected to the collection tube, the collection net is communicated with the inside of the collection tube, a filter screen cover is arranged on the top of the collection net, the filter screen cover is detachably connected to the collection net, the filter screen cover is used to filter out debris and adapt to collection nets of different calibers, the filter screen cover is truncated cone-shaped and recessed into the collection net, a pull rope is arranged on the upper end of the collection net, and the pull rope is connected to the telescopic rod.
[0005] Furthermore, the filter screen cover includes a rotating frame and a filter screen laid on the rotating frame, the rotating frame includes a horizontally arranged circular support plate, six rotating rods arranged in a circular array at the edge of the support plate, the rotating rods are hinged to the support plate, and a short column is set through the center of the support plate.
[0006] Furthermore, a linear array of slots is arranged on the inner side of the lower part of the rotating rod along the length direction of the rotating rod, and a horizontally arranged support rod is hingedly connected above the slot of the rotating rod. The rotating rod corresponds to the support rod one by one, and the support rods are all located on the outside of the rotating rod. The other end of the support rod is rotatably connected to the lower end of the short column, and the slot is an incomplete cylindrical slot.
[0007] Furthermore, a ring is fixedly arranged at the center of the support plate, a cavity is provided on the inner ring side wall of the ring, the cavity is connected with the inside of the ring, a limit rod is horizontally arranged inside the cavity, the limit rod is L-shaped, one end of the limit rod is facing the center of the ring, and the other end is horizontally facing the side wall of the cavity, and is fixedly connected with a horizontally arranged operating rod, the operating rod passes through the ring and the free end is located outside the ring, a spring is arranged inside the cavity and is mounted on the operating rod, and the spring connects the limit rod and the side wall of the cavity.
[0008] Furthermore, the short column is sleeved in the collar, the outer wall of the short column is provided with linear array bumps along the axial direction, the limiting rod is parallel to the bumps and is located between the bumps, and the width of the limiting rod is equal to the width of the bumps.
[0009] Furthermore, a fixing ring is arranged on the top of the collection net, the collection net is mounted on the fixing ring, the ring width of the fixing ring is equal to the diameter of the slot, and the fixing ring abuts against the slot.
[0010] The beneficial effects of the utility model are as follows:
[0011] The utility model discloses an anti-clogging plankton collection net. The filter cover recessed into the collection net can not only filter out floating impurities, but also collect larger plankton. The material in the filter cover is recycled for the second time, so as to obtain more comprehensive plankton species. The filter cover can be detachably connected to the collection net and can be adapted according to the size of the mesh opening of different collection nets. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.
[0013] Figure 2 It is a schematic diagram of the connection relationship of the rotating frame.
[0014] Figure 3 It is a cross-sectional view of the rotating frame.
[0015] Figure 4 This is an enlarged view of area A.
[0016] Figure 5 It is a schematic diagram of the connection relationship of short columns.
[0017] Figure 6 yes Figure 5 Sectional view of AA.
[0018] Figure numerals: 1. collection net, 2. collection cylinder, 3. filter net cover, 4. support plate, 5. support rod, 6. rotating rod, 7. short column, 8. slot, 9. ring, 10. limit rod, 11. operating rod, 12. spring, 13. bump, 14. fixing ring. DETAILED DESCRIPTION
[0019] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.
[0020] The utility model proposes an anti-clogging plankton collection net, comprising a collection net 1 and a collection tube 2. The collection net 1 has an opening at the bottom and is fixedly connected to the collection tube 2. The collection net 1 is connected to the inside of the collection tube 2. A filter net cover 3 is arranged on the top of the collection net 1. The filter net cover 3 is detachably connected to the collection net 1. The filter net cover 3 is used to filter out debris and adapt to collection nets 1 of different calibers. The filter net cover 3 is truncated cone-shaped and recessed into the collection net 1.
[0021] A pull rope is arranged at the upper end of the collection net 1, and the pull rope is connected to the telescopic rod. When the collection net 1 is dragged, the filter cover 3 recessed into the collection net 1 can not only filter out impurities and floating objects, but also collect larger plankton. The materials in the filter cover 3 are recycled for the second time, so as to obtain more comprehensive plankton species.
[0022] The filter screen cover 3 includes a rotating frame and a filter screen laid on the rotating frame, the rotating frame includes a horizontally arranged circular support plate 4, six rotating rods 6 arranged in a circular array at the edge of the support plate 4, the rotating rods 6 are hinged to the support plate 4, and a short column 7 is set through the center of the support plate 4. Specifically, the ends of the rotating rods 6 are inclined outward, and the diameter of the support plate 4 is smaller than the diameter of the open end of the collection net 1.
[0023] A slot 8 is arranged in a linear array on the inner side of the lower part of the rotating rod 6 along the length direction of the rotating rod 6. The upper part of the slot 8 of the rotating rod 6 is hinged to the horizontally arranged support rod 5. The rotating rod 6 and the support rod 5 correspond to each other one by one, and the support rod 5 is located on the outer side of the rotating rod 6. The other end of the support rod 5 is rotatably connected to the lower end of the short column 7. The slot 8 is an incomplete cylindrical slot. Specifically, the support rod 5 can be a straight rod or a folding rod. The support rod 5 is a hard rod and does not deform. The two ends of the support rod 5 are respectively hinged to the rotating rod 6 and the short column 7.
[0024] The short column 7 slides upward relative to the support plate 4, driving the support rod 5 from horizontal to inclined, and the end of the rotating rod 6 contracts; the short column 7 slides downward relative to the support plate 4, driving the support rod 5 from horizontal to inclined, and the end of the rotating rod 6 expands.
[0025] A collar 9 is fixedly arranged at the center of the support plate 4, and a cavity is provided on the inner side wall of the collar 9, and the cavity is connected to the inside of the collar 9. A limit rod 10 is horizontally arranged inside the cavity, and the limit rod 10 is L-shaped, with one end of the limit rod 10 facing the center of the collar 9 and the other end facing the side wall of the cavity horizontally, and fixedly connected to a horizontally arranged operating rod 11, which passes through the collar 9 and has a free end outside the collar 9. A spring 12 is arranged inside the cavity and is sleeved on the operating rod 11, and the spring 12 connects the limit rod 10 and the side wall of the cavity. Specifically, one end of the spring 12 is fixedly connected to the connection between the limit rod 10 and the operating rod 11, and the other end is connected to the inner wall of the cavity.
[0026] The short column 7 is sleeved in the ring 9, and the outer wall surface of the short column 7 is provided with an axial linear array of protrusions 13. The limiting rod 10 is parallel to the protrusions 13 and is located between the protrusions 13. The limiting rod 10 cooperates with the protrusions 13 to limit the short column 7, and the width of the limiting rod 10 is equal to the width of the protrusion 13.
[0027] When the spring 12 is at its natural length, the limiting rod 10 and the projection 13 are overlapped in vertical direction. By pressing or pulling the operating rod 11, the limiting rod 10 and the projection 13 are misaligned, and the short column 7 can slide up and down. By releasing the operating rod 11, the spring 12 returns to its original length, so that the limiting rod 10 is reset and abuts between the two projections 13, thereby limiting the short column 7.
[0028] A fixing ring 14 is arranged on the top of the collection net 1, and the collection net 1 is mounted on the fixing ring 14. The ring width of the fixing ring 14 is equal to the diameter of the slot 8. The fixing ring 14 abuts against the slot 8, and the filter screen cover 3 of the fixing ring 14 is detachably connected to the fixing ring 14 through the slot 8. The short column 7 controls the contraction and expansion of the end of the rotating rod 6. When the end of the rotating rod 6 contracts, the slot 8 clamps the fixing ring 14, and the filter screen cover 3 is connected to the collection net 1; when the end of the rotating rod 6 expands, the slot 8 is separated from the fixing ring 14, and the filter screen cover 3 is separated from the collection net 1.
[0029] In order to prevent floating objects from entering the collection net 1 and blocking the bottom collection tube, when in use, install the filter cover net on the collection net 1, press or pull the operating rod 11 to dislocate the limit rod 10 with the protrusion 13, slide the short column 7, move the end of the rotating rod 6, adjust it to the fixed ring 14 of the collection net 1, the slot 8 cooperates with the fixed ring 14, the fixed ring 14 is embedded in the slot 8, and then release the operating rod 11, the limit rod 10 is reset, the short column 7 is limited, the filter net cover 3 is fixed on the collection net 1, and the collection net 1 is dragged with a telescopic rod to facilitate the acquisition of plankton that is relatively far away. After the collection net 1 is completed, press or pull the operating rod 11 to dislocate the limit rod 10 with the protrusion 13, slide the short column 7, move the end of the rotating rod 6, and separate the slot 8 from the fixed ring 14 to complete the removal of the filter net cover 3.
Claims
1. An anti-clogging plankton collection net, characterized in that: include: A collection net and a collection tube, wherein the bottom of the collection net is open and fixedly connected to the collection tube, the collection net is communicated with the inside of the collection tube, a filter net cover is arranged on the top of the collection net, the filter net cover is detachably connected to the collection net, the filter net cover is used to filter out debris and adapt to collection nets of different calibers, the filter net cover is truncated cone-shaped and recessed into the collection net, a pull rope is arranged on the upper end of the collection net, and the pull rope is connected to the telescopic rod.
2. The anti-clogging plankton collection net according to claim 1, characterized in that: The filter screen cover comprises a rotating frame and a filter screen laid on the rotating frame, the rotating frame comprises a horizontally arranged circular support plate, six rotating rods arranged in a circular array at the edge of the support plate, the rotating rods are hinged to the support plate, and a short column is arranged through the center of the support plate.
3. The anti-clogging plankton collection net according to claim 2, characterized in that: A linear array of slots is arranged on the inner side of the lower part of the rotating rod along the length direction of the rotating rod. A horizontally arranged support rod is hingedly connected to the upper part of the slot of the rotating rod. The rotating rod corresponds to the support rods one by one, and the support rods are all located on the outside of the rotating rod. The other end of the support rod is rotatably connected to the lower end of the short column, and the slot is an incomplete cylindrical slot.
4. The anti-clogging plankton collection net according to claim 3, characterized in that: A collar is fixedly arranged at the center of the support plate, a cavity is provided on the inner ring side wall of the collar, the cavity is connected with the inside of the collar, a limit rod is horizontally arranged inside the cavity, the limit rod is L-shaped, one end of the limit rod is facing the center of the collar, and the other end is horizontally facing the side wall of the cavity, and is fixedly connected with a horizontally arranged operating rod, the operating rod passes through the collar and the free end is located outside the collar, a spring is arranged inside the cavity and is sleeved on the operating rod, and the spring connects the limit rod and the side wall of the cavity.
5. The anti-clogging plankton collection net according to claim 4, characterized in that: The short column is sleeved in the collar, the outer wall of the short column is provided with linear array bumps along the axial direction, the limiting rod is parallel to the bumps and is located between the bumps, and the width of the limiting rod is equal to the width of the bumps.
6. The anti-clogging plankton collection net according to claim 3, characterized in that: A fixing ring is arranged on the top of the collection net, the collection net is installed on the fixing ring, the ring width of the fixing ring is equal to the diameter of the slot, and the fixing ring abuts against the slot.