Freshwater aquaculture water bottom sediment sample collection device

Abstract

The invention discloses a device for collecting samples of bottom sediments in freshwater aquaculture waters, comprising a telescopic rod, a rope, a containing box and a plurality of cutting blades; the lower end of the telescopic rod is fixedly connected to a handle, the interior of the handle is rotatably connected to a winding wheel, one end of the rope is wound around the winding wheel, and the end of the rope away from the winding wheel passes through the telescopic rod and is connected to the containing box; the containing box is a hemispherical body, and the upper end surface of the containing box is rotatably connected to a connecting frame, and a plurality of the cutting blades are equidistantly fixedly connected to the connecting frame; the device is convenient for cutting water grass and aquatic plants near the collecting box, not only can it prevent the water grass and aquatic plants from being entangled on the containing box, but also it is convenient for collecting the aquatic plants, and at the same time it can prevent the water filter holes on the side wall of the containing box from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of aquatic plant collection equipment, in particular to a device for collecting bottom sediment samples in freshwater aquaculture waters. Background Art

[0002] Freshwater aquaculture refers to the production of aquatic economic animals (fish, shrimp, crab, shellfish, etc.) and aquatic economic plants raised and bred in ponds, reservoirs, lakes, rivers and other inland waters (including brackish water). It is an important part of the inland aquaculture industry. The main objects of aquaculture are fish. The shrimps farmed include Macrobrachium rosenbergii and Hainan prawns, and the crabs farmed are mainly river crabs. At present, China's freshwater farmed fish mainly include: black carp, grass carp, silver carp, bighead carp, carp, crucian carp, bream, bream, dace, non-crucian carp and other economic fish. China's freshwater aquaculture area and output rank first in the world. In the process of using freshwater for aquaculture, some aquatic plants such as water plants will grow at the bottom of the freshwater body. To ensure the water quality and aquaculture quality, it is necessary to regularly sample and test the sediments and water plants at the bottom of the water body.

[0003] The current bottom sediment sample collection devices for freshwater aquaculture waters generally only sample and test the silt at the bottom of the freshwater body, and it is difficult to sample aquatic plants such as water grasses. In addition, some sampling devices are placed in the water body, which will cause some aquatic plants such as water grasses to be entangled in the sampling device during the sampling process, which not only increases the difficulty of removing the sampler, but also has a certain impact on the sample. In addition, after sampling, the water filter holes on the wall of some bottom sediment sample collection devices for freshwater aquaculture waters are easily blocked by the silt in the water body, making it difficult for the water in the sample to flow out through the filter holes. Summary of the invention

[0004] The purpose of the present invention is to provide a device for collecting bottom sediment samples in freshwater aquaculture waters to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A device for collecting bottom sediment samples in freshwater aquaculture waters, comprising a telescopic rod, a rope, a containing box and a plurality of cutting blades;

[0007] The lower end of the telescopic rod is fixedly connected to a handle, the interior of the handle is rotatably connected to a winding wheel, one end of the rope is wound around the winding wheel, and one end of the rope away from the winding wheel passes through the telescopic rod and is connected to the accommodating box;

[0008] The containing box is a hemispherical body, and the upper end surface of the containing box is rotatably connected to a connecting frame, and a plurality of the cutting blades are fixedly connected to the connecting frame at equal intervals.

[0009] Preferably, a cavity is provided in the handle, the winding wheel is rotatably connected to the side wall of the cavity, and an outer gear ring is fixedly connected to the circumference of the winding wheel;

[0010] A servo motor is fixedly connected to the bottom of the cavity, a gear is fixedly connected to the output shaft of the servo motor, and the gear is meshed with an outer gear ring.

[0011] Preferably, the connecting frame comprises a lower annular plate and an upper annular plate;

[0012] The lower annular plate is fixedly connected to the upper end surface of the containing box, and the upper annular plate is rotatably connected to the lower annular plate.

[0013] Preferably, an annular groove is formed on the lower surface of the lower annular plate, and the lower annular plate is sleeved on the upper end surface of the accommodating box through the annular groove;

[0014] The lower annular plate is fixedly connected to the upper end of the containing box by a plurality of fixing bolts.

[0015] Preferably, an annular groove is provided on the upper surface of the lower annular plate;

[0016] The lower surface of the upper annular plate is equidistantly and fixedly connected with sliding blocks, and the sliding blocks are slidably connected in the annular sliding grooves.

[0017] Preferably, the upper surface of the upper annular plate is fixedly connected with connecting rods at equal intervals, and the upper end surfaces of a plurality of the connecting rods are connected to each other in a conical shape;

[0018] A plurality of cutting blades are fixedly connected to the side walls of the connecting rods on two adjacent sides at equal intervals.

[0019] Preferably, a partition is horizontally fixedly connected to the bottom of the containing box, and the partition and the bottom of the containing box form a driving chamber, and the driving chamber cooperates with the connecting rod.

[0020] Preferably, a fixing rod is vertically arranged in the containing box, and the upper end of the fixing rod is fixedly connected to the upper end of the connecting rod;

[0021] A motor is fixedly connected to the top of the driving chamber, and an output shaft of the motor passes through the partition and is clamped with the fixing rod.

[0022] Preferably, a cross-shaped limiting plate is fixedly connected to the lower end surface of the fixing rod;

[0023] The upper end surface of the motor output shaft is provided with a cross-shaped groove, and the cross-shaped limit plate is inserted into the cross-shaped groove.

[0024] Preferably, water filter holes are equidistantly provided on the side wall of the container box, one end of the water filter hole is covered with a filter screen, and the filter screen is fixedly connected to the inner side wall of the container box;

[0025] A layer of bristles is fixedly connected to the side wall of the fixing rod, and one end of the bristles away from the fixing rod is in contact with the inner wall of the containing box.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a telescopic rod and a rope on one side of the containing box, so as to facilitate the placing of the containing box into the water body; provides a winding wheel on the lower side of the telescopic rod, so as to facilitate the control of the contraction and extension of the rope; provides a servo motor on the lower side of the winding wheel, so as to facilitate the driving of the winding wheel to rotate forward and reversely; provides a cutting blade on the upper side of the containing box, so as to facilitate the cutting of water grass and aquatic plants near the containing box, so as to facilitate the entering of water grass and aquatic plants into the containing box, so as to facilitate the collection of water grass and aquatic plants; provides a motor on the lower side of the cutting blade, so as to facilitate the driving of the rotation of the cutting blade; provides bristles in the containing box, so as to effectively avoid the clogging of the water filter holes on the containing box, so as to facilitate the filtering of the water in the collected water grass and aquatic plants; the underwater sediment sample collection device for freshwater aquaculture waters is convenient for cutting the water grass and aquatic plants near the collecting box, which can not only avoid the water grass and aquatic plants from being entangled on the containing box, but also facilitate the collection of aquatic plants, and at the same time can prevent the clogging of the water filter holes on the side wall of the containing box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0028] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0029] Figure 3 It is a schematic diagram of the front connection structure between the receiving box and the cutting blade of the present invention;

[0030] Figure 4 for Figure 3 A schematic diagram of the local enlarged structure at B in the middle;

[0031] Figure 5 is a cross-sectional view of the containing box in the present invention;

[0032] Figure 6 is a cross-sectional view of the connecting rod and the lower annular plate in the present invention;

[0033] Figure 7 It is a schematic diagram of the top view connection structure between the cross-shaped limiting plate and the motor in the present invention;

[0034] In the figure: 1 telescopic rod, 2 rope, 3 receiving box, 4 cutting blade, 5 handle, 6 winding wheel, 7 connecting frame, 8 cavity, 9 outer ring gear, 10 gear, 11 lower annular plate, 12 upper annular plate, 13 annular groove, 14 fixing bolt, 15 annular slide, 16 slider, 17 connecting rod, 18 partition, 19 driving chamber, 20 fixing rod, 21 motor, 22 cross-shaped limit plate, 23 cross-shaped groove, 24 water filter hole, 25 filter screen, 26 bristles, 27 servo motor. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-7 In an embodiment of the present invention, a device for collecting bottom sediment samples in freshwater aquaculture waters comprises a telescopic rod 1, a rope 2, a containing box 3 and a plurality of cutting blades 4;

[0037] The lower end of the telescopic rod 1 is fixedly connected to a handle 5, and the interior of the handle 5 is rotatably connected to a winding wheel 6, one end of the rope 2 is wound around the winding wheel 6, and the end of the rope 2 away from the winding wheel 6 passes through the telescopic rod 1 and is connected to the accommodating box 3;

[0038] The containing box 3 is a hemispherical body, and the upper end surface of the containing box 3 is rotatably connected to a connecting frame 7 , and a plurality of cutting blades 4 are fixedly connected to the connecting frame 7 at equal intervals.

[0039] A cavity 8 is provided in the handle 5, and the winding wheel 6 is rotatably connected to the side wall of the cavity 8, and an outer gear ring 9 is fixedly connected to the circumference of the winding wheel 6, so that the winding wheel 6 can be rotatably connected to the handle 5;

[0040] A servo motor 27 is fixedly connected to the bottom of the cavity 8, and a gear 10 is fixedly connected to the output shaft of the servo motor 27. The gear 10 is meshed with the outer gear ring 9, so that the servo motor 27 can drive the winding wheel 6 to rotate forward and reverse through the meshing of the gear 10 and the outer gear ring 9, thereby facilitating the winding and unwinding of the rope 2.

[0041] The connecting frame 7 includes a lower annular plate 11 and an upper annular plate 12;

[0042] The lower annular plate 11 is fixedly connected to the upper end surface of the accommodating box 3 , and the upper annular plate 12 is rotatably connected to the lower annular plate 11 , so as to facilitate fixing the connecting frame 7 to the accommodating box 3 .

[0043] An annular groove 13 is formed on the lower surface of the lower annular plate 11, and the lower annular plate 11 is sleeved on the upper end surface of the accommodating box 3 through the annular groove 13;

[0044] The lower annular plate 11 is fixedly connected to the upper end of the receiving box 3 by a plurality of fixing bolts 14 , so as to facilitate the fixing and connection of the lower annular plate 11 to the receiving box 3 and facilitate the disassembly of the lower annular plate 11 .

[0045] An annular groove 15 is formed on the upper surface of the lower annular plate 11;

[0046] The lower surface of the upper annular plate 12 is fixedly connected with sliders 16 at equal intervals. The sliders 16 are slidably connected in the annular sliding grooves 15 to facilitate the upper annular plate 12 to be rotatably connected to the lower annular plate 11 .

[0047] The upper surface of the upper annular plate 12 is fixedly connected with connecting rods 17 at equal intervals, and the upper end surfaces of the plurality of connecting rods 17 are connected to each other in a conical shape;

[0048] A plurality of cutting blades 4 are fixedly connected to the side walls of the adjacent two side connecting rods 17 at equal distances, and the cutting blades 4 are arranged obliquely, and the cutting edges of the cutting blades 4 are arranged downwards, so as to facilitate cutting of aquatic plants.

[0049] The bottom of the storage box 3 is horizontally fixedly connected with a partition 18, and the partition 18 and the bottom of the storage box 3 form a driving chamber 19. The driving chamber 19 cooperates with the connecting rod 17 to facilitate the formation of the driving chamber 19, and the partition 18 and the storage box 3 are integrally formed.

[0050] A fixing rod 20 is vertically arranged in the receiving box 3, and the upper end of the fixing rod 20 is fixedly connected to the upper end of the connecting rod 17;

[0051] A motor 21 is fixedly connected to the top of the driving chamber 19 , and the output shaft of the motor 21 passes through the partition 18 and is engaged with the fixing rod 20 , so that the motor 21 and the fixing rod 20 are engaged to drive the rotation of the connecting rod 17 .

[0052] A cross-shaped limiting plate 22 is fixedly connected to the lower end surface of the fixing rod 20;

[0053] A cross-shaped groove 23 is formed on the upper end surface of the output shaft of the motor 21 , and a cross-shaped limiting plate 22 is inserted into the cross-shaped groove 23 , so that the output shaft of the motor 21 can be clamped on the lower end of the fixing rod 20 .

[0054] The side wall of the container box 3 is provided with water filtering holes 24 at equal intervals, and one end of the water filtering hole 24 is covered with a filter screen 25, which is fixedly connected to the inner wall of the container box 3. The filter screen 25 is hemispherical and can prevent the water filtering hole 24 from being blocked;

[0055] A layer of bristles 26 is fixedly connected to the side wall of the fixing rod 20 , and one end of the bristles 26 away from the fixing rod 20 contacts the inner wall of the receiving box 3 , so as to facilitate cleaning of attachments on the filter screen 25 , thereby avoiding clogging of the filter screen 25 .

[0056] When the present invention is in use, the servo motor 27 is started, so that the output shaft of the servo motor 27 drives the rotation of the winding wheel 6 through the meshing of the gear 10 and the outer gear ring 9, thereby unfolding the rope 2, and at the same time stretching the telescopic rod 1 so that the telescopic rod 1 reaches the longest value, and then the motor 21 is started, and then the receiving box 3 is still placed in the freshwater aquaculture water area, so that the receiving box 3 sinks to the bottom of the water body, and during the rotation of the motor 21, the cross-shaped groove 23 and the cross-shaped limit plate 22 can cooperate to drive the connecting rod 17 to rotate through the fixing rod 20, so that the aquatic plants such as water plants at the bottom of the water body come into contact with the cutting blade 4 on the connecting rod 17, so that the cutting The blades 4 cut the water plants, etc., and the cut water plants enter the containing box 3 through the gaps between the multiple cutting blades 4. The fixed rod 20 can drive the rotation of the bristles 26 while rotating, thereby preventing the water plants and silt from adhering to the filter screen 25, thereby preventing the mesh holes of the filter screen 25 from being blocked, and at the same time preventing the water filter holes 24 from being blocked; when the water plants and other aquatic plants are collected, the servo motor 27 is started to drive the winding wheel 6 to rotate, so that the winding wheel 6 winds up the rope 2, thereby pulling the containing box 3 out of the water body, and in the process of pulling out the containing box 3, the moisture in the collected water plants and other aquatic plants is filtered out through the water filter holes 24.

[0057] The "fixed connection" described in the present invention means that the two interconnected parts are fixed together, generally by welding, screws or gluing; "rotational connection" means that the two parts are connected together and can move relative to each other.

[0058] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0059] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A device for collecting bottom sediment samples in freshwater aquaculture waters, comprising a telescopic rod (1), characterized in that: It also includes a rope (2), a receiving box (3) and a plurality of cutting blades (4); The lower end of the telescopic rod (1) is fixedly connected to a handle (5), the interior of the handle (5) is rotatably connected to a winding wheel (6), one end of the rope (2) is wound around the winding wheel (6), and the end of the rope (2) away from the winding wheel (6) passes through the telescopic rod (1) and is connected to the containing box (3); The containing box (3) is a hemispherical body, and the upper end surface of the containing box (3) is rotatably connected to a connecting frame (7), and a plurality of cutting blades (4) are fixedly connected to the connecting frame (7) at equal distances; A cavity (8) is provided in the handle (5), the winding wheel (6) is rotatably connected to the side wall of the cavity (8), and an outer gear ring (9) is fixedly connected to the circumferential wall of the winding wheel (6); A servo motor (27) is fixedly connected to the bottom of the cavity (8), a gear (10) is fixedly connected to the output shaft of the servo motor (27), and the gear (10) is meshed with an outer gear ring (9); The connecting frame (7) comprises a lower annular plate (11) and an upper annular plate (12); The lower annular plate (11) is fixedly connected to the upper end surface of the containing box (3), and the upper annular plate (12) is rotatably connected to the lower annular plate (11); The lower surface of the lower annular plate (11) is provided with an annular groove (13), and the lower annular plate (11) is sleeved on the upper end surface of the accommodating box (3) through the annular groove (13); The lower annular plate (11) is fixedly connected to the upper end of the containing box (3) via a plurality of fixing bolts (14); The upper surface of the upper annular plate (12) is fixedly connected with connecting rods (17) at equal intervals, and the upper end surfaces of a plurality of connecting rods (17) are connected to each other in a conical shape; The plurality of cutting blades (4) are fixedly connected to the side walls of the connecting rod (17) on two adjacent sides at equal intervals; A partition (18) is horizontally fixedly connected to the bottom of the containing box (3), the partition (18) and the bottom of the containing box (3) form a driving chamber (19), and the driving chamber (19) cooperates with the connecting rod (17); A fixing rod (20) is vertically arranged in the containing box (3), and the upper end of the fixing rod (20) is fixedly connected to the upper end of the connecting rod (17); A motor (21) is fixedly connected to the top of the driving chamber (19), and an output shaft of the motor (21) passes through the partition plate (18) and is clamped with a fixing rod (20).

2. The device for collecting bottom sediment samples in freshwater aquaculture waters according to claim 1, characterized in that: An annular sliding groove (15) is provided on the upper surface of the lower annular plate (11); The lower surface of the upper annular plate (12) is fixedly connected with sliders (16) at equal intervals, and the sliders (16) are slidably connected in the annular sliding groove (15).

3. The device for collecting bottom sediment samples in freshwater aquaculture waters according to claim 2, characterized in that: A cross-shaped limiting plate (22) is fixedly connected to the lower end surface of the fixing rod (20); The upper end surface of the output shaft of the motor (21) is provided with a cross-shaped groove (23), and the cross-shaped limiting plate (22) is inserted into the cross-shaped groove (23).

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