Self-floating water body sample collecting device

Abstract

The invention relates to a self-floating water body sample collecting device. Comprising a floating body, the middle of the floating body is provided with a central channel, the side wall is provided with a plurality of radially-through windows, the bottom of the central channel is provided with a bottom frame, and the bottom frame is provided with a lifting assembly and a sampling assembly; the sampling assembly comprises a sampling box with the top open and the bottom wall provided with drainage holes, a sampling lead screw and a sampling guide rod which are transversely arranged are installed on the bottom wall of the sampling box, the sampling assembly further comprises a sampling moving seat and a sampling driving motor, and a sampling sliding plate with a set of water passing holes in the middle is installed on the sampling moving seat; a plurality of groups of base sleeves internally provided with springs are mounted on the bottom wall of the sampling box body, water sample bottles are arranged in the base sleeves, and top openings of the water sample bottles abut against the lower surface of the sampling sliding plate; a control box is further installed on the bottom frame. According to the invention, multiple groups of homogenized water samples can be autonomously obtained at set time, the working intensity of sampling activity is reduced, and the sampling efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of sampling equipment technology, and in particular relates to a self-floating water sample collection device. Background Technology

[0002] Sampling and testing water bodies are important means of obtaining water quality information. By testing the water quality, pollution can be detected and evaluated. In aquaculture activities, obtaining water quality information can help evaluate the credibility of aquaculture projects. By continuously sampling and testing water bodies, changes in water quality can be tracked. In the current technology, water samples for testing are obtained through water sampling activities.

[0003] Typically, water samples used for water quality testing have the following requirements: First, multiple homogeneous samples need to be obtained in a single sampling operation, and the test information from each sample needs to be cross-validated to improve the reliability of the test information; second, samples need to be obtained from multiple time points to compare water quality changes at different time points. Existing water sampling devices are difficult to meet the above requirements. In addition, existing sampling devices rely too much on the intervention of sampling personnel, who need to be on-site at multiple times to conduct sampling operations, resulting in high workload and low sampling efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a self-floating water sample collection device that can autonomously acquire multiple sets of homogeneous water samples at a set time, thereby reducing the workload of sampling activities and improving sampling efficiency.

[0005] The technical solution adopted by this invention is as follows: a self-floating water sample collection device, including a float, a central channel running longitudinally through the middle of the float, and multiple radially through windows on the side walls. A base frame is installed at the bottom of the central channel, and a lifting assembly is installed on the base frame. The device also includes a sampling assembly driven by the lifting assembly to move. The sampling assembly includes a sampling box with an open top and drainage holes on the bottom wall. A horizontally placed sampling screw and sampling guide rod are installed on the bottom wall of the sampling box. It also includes a sampling moving seat driven by the sampling screw and moving along the sampling guide rod, and a sampling drive motor. A sampling sliding plate with a set of water passage holes in the middle is installed on the sampling moving seat. Multiple sets of base sleeves with internal springs are installed on the bottom wall of the sampling box. Water sample bottles are placed inside the base sleeves. The top opening of the water sample bottle abuts against the lower surface of the sampling sliding plate. When the sampling sliding plate moves and the water passage holes pass through the bottle openings of the lower set of water sample bottles, water samples are injected into the water sample bottles. A control box is also installed on the base frame.

[0006] Preferably, a silicone layer is provided on the lower surface of the sampling sliding plate, and each set of base sleeves includes four sleeves, with two sleeves provided on each side of the sampling screw and the sampling guide rod.

[0007] Preferably, the lifting assembly includes a left guide rod and a left lead screw, a right guide rod and a right lead screw, a left lifting seat that moves along the left guide rod is installed on the left lead screw, and a right lifting seat that moves along the right guide rod is installed on the right lead screw. The sampling box of the sampling assembly is installed and fixed between the left lifting seat and the right lifting seat. The assembly also includes a drive assembly that drives the left and right lead screws to rotate synchronously.

[0008] Preferably, the drive assembly includes a lifting reduction motor mounted and fixed on the base frame, a left drive box, and a right drive box. One end of the output shaft of the lifting reduction motor is connected to the lower end of the left lead screw through the left drive box, and the other end is connected to the lower end of the right lead screw through the right drive box.

[0009] Preferably, a protective cover is also installed on the base frame, which houses the control box and the lifting gear motor of the lifting assembly inside.

[0010] Preferably, the base frame is H-shaped, and four connecting seats are provided at the bottom of the central channel of the float. The four corners of the base frame profile are fixedly connected to each connecting seat.

[0011] Preferably, the float and its central channel are both cylindrical in shape, and four windows are provided and arranged at equal angular intervals around the perimeter, with the cross-section of the windows being fan-shaped.

[0012] Preferably, the float is anchored on the surface of the sampling area, and the bottom of the float is connected to multiple anchor cables. Each anchor cable has an anchor block at its lower end, and multiple lifting rings are arranged at equal angular intervals around the top of the float.

[0013] The advantages and positive effects of this invention are as follows: This invention provides a self-floating water sample collection device, which uses a float as a carrier and floats on the surface of the water area being sampled. By setting up a lifting component, the sampling component can be raised and lowered. During sampling, the sampling component is submerged in the water, and after sampling, during the water sample extraction stage, the sampling component rises to a higher position to facilitate the extraction operation.

[0014] The sampling assembly has multiple base sleeves inside which water sample bottles are inserted, and springs located inside the base sleeves provide an upward elastic force to the water sample bottles. When the sampling slide plate moves, when the water passage hole on the plate moves above one of the water sample bottles, water enters each water sample bottle. As the sampling slide plate moves further, the top opening of the current water sample bottle is closed, and the next water sample bottle is ready to be filled with water. Therefore, this sample collection device can autonomously acquire multiple sets of homogeneous water sample samples at a set time, reducing the workload of sampling activities and improving sampling efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front perspective structure of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 yes Figure 1 A schematic diagram of the front cross-sectional structure of the mid-sampling component; Figure 4 yes Figure 1 A three-dimensional structural diagram of the lifting assembly.

[0016] In the picture: 1. Float; 2. Anchor cable; 3. Anchor block; 4. Base frame; 5. Control box; 6. Sampling assembly; 6-1. Sampling box; 6-2. Support; 6-3. Sampling screw; 6-4. Drain hole; 6-5. Sampling guide rod; 6-6. Sampling drive motor; 6-7. Sampling moving seat; 6-8. Sampling sliding plate; 6-9. Water passage hole; 6-10. Water sample bottle; 6-11. Spring; 6-12. Base sleeve; 7. Window; 8. Lifting assembly; 8-1. Lifting reduction motor; 8-2. Left drive box; 8-3. Right drive box; 8-4. Left lifting seat; 8-5. Right lifting seat; 8-6. Left guide rod; 8-7. Left screw; 8-8. Right guide rod; 8-9. Right screw; 9. Lifting ring; 10. Protective cover. Detailed Implementation

[0017] To further understand the invention's content, features, and effects, the following embodiments are provided for detailed explanation.

[0018] Please see Figure 1 and Figure 2 The self-floating water sample collection device of the present invention includes a float 1, which has a longitudinally penetrating central channel in its middle and multiple radially penetrating windows 7 on its side walls. The float 1 provides buoyancy support and floats on the surface of the sampling area, with each window 7 allowing water flow.

[0019] In this embodiment, the float 1 and its central channel are both cylindrical in shape, and four windows 7 are provided and arranged at equal angular intervals around the perimeter. The cross-section of the windows 7 is fan-shaped.

[0020] In this embodiment, the float 1 is anchored on the water surface of the sampling area. Multiple anchor cables 2 are connected to the bottom of the float 1, and each anchor cable 2 has an anchor block 3 at its lower end. Multiple lifting rings 9 are arranged at equal angular intervals around the top of the float 1. The lifting rings 9 are used to lift the sample collection device using a ship crane. The sample collection device is transferred from the ship deck to the water surface or from the water surface to the ship deck in the form of hoisting.

[0021] A base frame 4 is installed at the bottom of the central channel, and a lifting assembly 8 is mounted on the base frame 4. The base frame also includes a sampling assembly 6, which is driven to rise and fall by the lifting assembly 8. A control box 5 is also mounted on the base frame 4. The base frame 4 supports the lifting assembly 8 and the sampling assembly 6. The lifting assembly 8 can move the position of the sampling assembly 6 vertically. During sampling, the sampling assembly 6 descends and is submerged in the water. After sampling, during the water sample extraction stage, the sampling assembly 6 rises to a higher position to facilitate extraction. The sampling assembly 6 can autonomously acquire multiple sets of homogeneous water samples at a set time.

[0022] Please see Figure 4 It can be seen that: The lifting assembly 8 includes a left guide rod 8-6 and a left lead screw 8-7, a right guide rod 8-8 and a right lead screw 8-9. A left lifting seat 8-4 that moves along the left guide rod 8-6 is installed on the left lead screw 8-7, and a right lifting seat 8-5 that moves along the right guide rod 8-8 is installed on the right lead screw 8-9. The sampling assembly 6 is installed and fixed between the left lifting seat 8-4 and the right lifting seat 8-5. It also includes a drive assembly that drives the left lead screw 8-7 and the right lead screw 8-9 to rotate synchronously.

[0023] In this embodiment, the drive assembly includes a lifting reduction motor 8 mounted and fixed on the base frame 4, a left drive box 8-2, and a right drive box 8-3. One end of the output shaft of the lifting reduction motor 8-1 is connected to the lower end of the left lead screw 8-7 via the left drive box 8-2, and the other end is connected to the lower end of the right lead screw 8-9 via the right drive box 8-3. When the lifting reduction motor 8-1 is running, the left lead screw 8-7 and the right lead screw 8-9 rotate synchronously, and the sampling assembly 6 moves up or down accordingly.

[0024] In this embodiment, a protective cover 10 is also installed on the base frame 4. The protective cover 10 covers the control box 5 and the lifting reduction motor 8-1 of the lifting assembly 8. The function of the protective cover 10 is to enclose the control box 5 and the lifting reduction motor 8-1 inside, to prevent the control box 5 and the lifting reduction motor 8-1 from being impacted, and to prevent foreign objects from acting on the lifting reduction motor 8-1 and causing drive jamming problems.

[0025] Please see the figure. Figure 3 It can be seen that: The sampling assembly 6 includes a sampling box 6-1 with an open top and a drainage hole 6-4 on the bottom wall. The sampling box 6-1 of the sampling assembly 6 is installed and fixed between the left lifting seat 8-4 and the right lifting seat 8-5 of the lifting assembly 8. A horizontally placed sampling screw 6-3 and a sampling guide rod 6-5 are installed on the bottom wall of the sampling box 6-1. As shown in the figure, two opposing supports 6-2 are installed on the bottom wall of the sampling box 6-1, and the sampling screw 6-3 and the sampling guide rod 6-5 are installed between the two supports 6-2, with the sampling guide rod 6-5 located below the sampling screw 6-3.

[0026] It also includes a sampling moving seat 6-7 driven by a sampling screw 6-3 and moving along a sampling guide rod 6-5, and a sampling drive motor 6-6. The sampling drive motor 6-6 drives the sampling screw 6-3 to rotate in the forward or reverse direction, and the sampling moving seat 6-7 to move in translation.

[0027] A sampling sliding plate 6-8 with a set of water passage holes 6-9 in the middle is installed on the sampling moving seat 6-7. Multiple sets of base sleeves 6-12 with internal springs 6-11 are installed on the bottom wall of the sampling box 6-1. A water sample bottle 6-10 is placed inside the base sleeve 6-12. The top opening of the water sample bottle 6-10 abuts against the lower surface of the sampling sliding plate 6-8. When the sampling sliding plate 6-8 moves and the water passage holes 6-9 pass through the bottle openings of the set of water sample bottles 6-10 below, the water sample is injected into the water sample bottle 6-10.

[0028] In this embodiment, a silicone layer is provided on the lower surface of the sampling sliding plate 6-8. Each set of base sleeves 6-12 includes four sleeves, with two sleeves on each side of the sampling screw 6-3 and the sampling guide rod 6-5. Further, as shown in the figure, four sets of base sleeves 6-12 are provided along the axial direction of the sampling guide rod 6-5 and are equally spaced. Therefore, four sets of water samples can be obtained in each sampling activity, and each set of water samples corresponds to a set sampling time node. Each set of water samples includes four water samples and is stored in four water sample bottles 6-10. Since these four water samples enter the four water sample bottles 6-10 at the same time, they are homogeneous water sample samples.

[0029] The purpose of setting a silicone layer on the lower surface of the sampling slide plate 6-8 is to better seal the top opening of the water sample bottle 6-10. Before the sampling operation occurs (that is, before the water passage hole 6-9 on the sampling slide plate 6-8 moves above the water sample bottle 6-10), the top opening of the water sample bottle 6-10 is reliably sealed to prevent premature water ingress. After the sampling operation occurs (that is, after the water passage hole 6-9 on the sampling slide plate 6-8 moves above the water sample bottle 6-10 and the water sample is poured into the water sample bottle 6-10), the top opening of the water sample bottle 6-10 is reliably sealed to prevent water exchange between the inside and outside of the bottle.

[0030] In this embodiment, the base frame 4 is H-shaped, and four connecting seats are provided at the bottom of the central channel of the float 1. The four corners of the profile of the base frame 4 are fixedly connected to each connecting seat.

[0031] The control box 5 includes a housing, inside which is a PLC-based control circuit board and a battery for power supply. The control circuit board sets the sampling time points. Cable holes are provided on the housing; cables pass through these holes and are sealed with adhesive to improve waterproofing. The lifting reduction motor 8-1 of the lifting assembly 8 and the sampling drive motor 6-6 of the sampling assembly 6 are connected to the control circuit board via cables. A charging interface is also provided on the housing for replenishing power.

[0032] Operating method: First, load 6-10 water sample bottles. The specific procedure is as follows: Figure 3 As shown, the sampling slide plate 6-8 is first moved to the left to the end position. At this time, all the base sleeves 6-12 are exposed and not blocked by the sampling slide plate 6-8. Water sample bottles 6-10 are inserted into each base sleeve 6-12. Then, the sampling slide plate 6-8 is controlled to move to the right. When it moves to a set of water sample bottles 6-10, it is first pressed down to allow more of the water sample bottles 6-10 to enter the base sleeves 6-12. The spring 6-11 is further compressed. After the sampling slide plate 6-8 passes, the water sample bottles 6-10 are released. Under the elastic force of the spring 6-11, the water sample bottles 6-10 are lifted upwards. The top opening contacts the silicone layer on the bottom surface of the sampling slide plate 6-8 and is sealed. This operation is repeated until all four sets of water sample bottles 6-10 are covered under the sampling slide plate 6-8. Initially, the water passage hole 6-9 is located to the left of the leftmost set of water sample bottles 6-10. The lifting component 8 drives the sampling component 6 to descend to the low position.

[0033] The data collection device was transferred from the ship's deck to the water surface of the sampling area using a ship's crane. Multiple anchor cables 2 and their anchor blocks 3 were connected to the bottom of the float 1. The anchor blocks 3 were then dropped to the bottom of the water, anchoring the float 1 to the water surface of the sampling area. Figure 1 The image shows the working state of this data acquisition device. It can be seen that the top of the float 1 is partially exposed above the water surface, and under its own weight, the float 1 and its auxiliary components are mostly submerged in the water.

[0034] When the set sampling time point is reached, the sampling drive motor 6-6 of the sampling component 6 actuates, the sampling screw 6-3 rotates, and the sampling moving seat 6-7 and its sampling sliding plate 6-8 move to the right by one working length (the working length is equal to the distance between two adjacent sets of base sleeves 6-12). During this process, the water passage 6-9 passes through the first set of water sample bottles 6-10. After the first set of water sample bottles 6-10 are filled with water sample, their top openings are sealed again by the moved sampling sliding plate 6-8. At the next sampling time point, the sampling sliding plate 6-8 moves to the right again by one working length. During this process, the second set of water sample bottles 6-10 are filled with water sample and their top openings are sealed. This continues until the fourth set of water sample bottles 6-10 completes the sampling operation. Figure 1 The sampling termination state is shown in the figure. The water passage hole 6-9 on the sampling slide plate 6-8 is located to the right of the fourth group of water sample bottles 6-10.

[0035] Afterwards, the lifting assembly 8 operates, raising the sampling assembly 6 to a high position to await sampling personnel to collect water samples. Water in the sampling chamber 6-1 of the high-positioned sampling assembly 6 is discharged downwards through the drain hole 6-4, preventing the water sample from being submerged in water for an extended period. During sampling, a ship's crane is used to lift the collection device onto the ship's deck. The sampling slide plate 6-8 is then moved to the left to its final position, exposing each water sample bottle 6-10 and its water sample, ensuring it is not obstructed by the sampling slide plate 6-8. Each water sample bottle 6-10 is then removed, capped, and labeled before being transferred to the testing laboratory.

Claims

1. A self-floating water sample collection device, characterized in that: The system includes a float (1), which has a longitudinally penetrating central channel in the middle and multiple radially penetrating windows (7) on its side walls. A base frame (4) is installed at the bottom of the central channel, and a lifting assembly (8) is installed on the base frame (4). It also includes a sampling assembly (6) driven by the lifting assembly (8) for lifting. The sampling assembly (6) includes a sampling box (6-1) with an open top and a drain hole (6-4) on its bottom wall. A horizontally placed sampling screw (6-3) and a sampling guide rod (6-5) are installed on the bottom wall of the sampling box (6-1). It also includes a sampling moving seat (6-7) driven by the sampling screw (6-3) and moving along the sampling guide rod (6-5). The sampling drive motor (6-6) is installed on the sampling moving seat (6-7), and a sampling sliding plate (6-8) with a set of water passage holes (6-9) in the middle is installed on the sampling moving seat (6-7). Multiple sets of base sleeves (6-12) with springs (6-11) inside are installed on the bottom wall of the sampling box (6-1). A water sample bottle (6-10) is installed in the base sleeve (6-12). The top opening of the water sample bottle (6-10) abuts against the lower surface of the sampling sliding plate (6-8). When the sampling sliding plate (6-8) moves and the water passage hole (6-9) passes through the bottle opening of the set of water sample bottles (6-10) below, the water sample is injected into the water sample bottle (6-10). A control box (5) is also installed on the base frame (4).

2. The self-floating water sample collection device as described in claim 1, characterized in that: in A silicone layer is provided on the lower surface of the sampling sliding plate (6-8). Each set of base sleeves (6-12) includes four sleeves, with two sleeves on each side of the sampling screw (6-3) and the sampling guide rod (6-5).

3. The self-floating water sample collection device as described in claim 2, characterized in that: The lifting assembly (8) includes a left guide rod (8-6) and a left lead screw (8-7), a right guide rod (8-8) and a right lead screw (8-9). A left lifting seat (8-4) that moves along the left guide rod (8-6) is installed on the left lead screw (8-7), and a right lifting seat (8-5) that moves along the right guide rod (8-8) is installed on the right lead screw (8-9). The sampling box (6-1) of the sampling assembly (6) is installed and fixed between the left lifting seat (8-4) and the right lifting seat (8-5). It also includes a drive assembly that drives the left lead screw (8-7) and the right lead screw (8-9) to rotate synchronously.

4. The self-floating water sample collection device as described in claim 3, characterized in that: The drive assembly includes a lifting gear motor (8-1) mounted on the base frame (4), a left drive box (8-2), and a right drive box (8-3). One end of the output shaft of the lifting gear motor (8-1) is connected to the lower end of the left lead screw (8-7) through the left drive box (8-2), and the other end is connected to the lower end of the right lead screw (8-9) through the right drive box (8-3).

5. The self-floating water sample collection device as described in claim 4, characterized in that: in The base frame (4) is also equipped with a protective cover (10), which covers the control box (5) and the lifting gear motor (8-1) of the lifting assembly (8) inside.

6. The self-floating water sample collection device as described in claim 5, characterized in that: The base frame (4) is H-shaped, and four connecting seats are provided at the bottom of the central channel of the float (1). The four corners of the profile of the base frame (4) are fixedly connected to each connecting seat.

7. The self-floating water sample collection device as described in claim 6, characterized in that: The float (1) and its central channel are both cylindrical in shape. There are four windows (7) arranged at equal angular intervals around the perimeter. The cross-section of the windows (7) is fan-shaped.

8. The self-floating water sample collection device as described in claim 7, characterized in that: The float (1) is anchored on the surface of the sampling area. Multiple anchor cables (2) are connected to the bottom of the float (1). An anchor block (3) is provided at the lower end of each anchor cable (2). Multiple hanging rings (9) are arranged at equal angular intervals around the top of the float (1).

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