Accurate collector for water quality of bottom layer of water area

Abstract

In order to solve the technical problem, the utility model provides the following technical scheme: the water area bottom layer water quality accurate collector comprises a floating disc, the lower end surface of the floating disc is detachably connected with a sampling barrel, and the floating disc is connected with the upper end surface of the sampling barrel through a winder; a storage space is formed in the sampling barrel, a lifting plate is vertically and slidably connected in the storage space, the lifting plate performs lifting control through a driving threaded rod rotationally connected in the sampling barrel, water inlet rubber blocks are arranged on the outer side of the lower end of the sampling space, and water inlet gaps penetrating through the outer wall of the sampling space are formed in the water inlet rubber blocks respectively.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality detection. Specifically, it is a precise water quality sampler for the bottom layer of water areas. Background Art

[0002] The water quality in water areas is an important indicator to measure the local environment. However, when collecting water samples, only sampling the water surface samples cannot accurately reflect the current water quality of the water area. Therefore, especially in static water areas, due to sediment in the water and different water layers resulting in different qualities, it is necessary to be able to accurately sample the water body at a specific depth in the water area so as to accurately know the water quality of the current water area. Content of the Utility Model

[0003] For this reason, the technical problem to be solved by the utility model is to provide a precise water quality sampler for the bottom layer of water areas that can sample the water quality at a fixed depth in the water area.

[0004] To solve the above technical problem, the utility model provides the following technical solutions:

[0005] A precise water quality sampler for the bottom layer of water areas includes a floating disk. A sampling cylinder is detachably connected to the lower end surface of the floating disk. The floating disk and the upper end surface of the sampling cylinder are connected by a wire reel. A storage space is provided in the sampling cylinder. A lifting plate is vertically slidably connected in the storage space. The lifting plate is controlled to lift by a driving threaded rod rotatably connected in the sampling cylinder. An inlet rubber block is provided outside the lower end of the sampling space. Each inlet rubber block is provided with an inlet gap penetrating the outer wall of the sampling space.

[0006] Preferably, a rubber layer is provided on the outer edge of the lifting plate. The outer edge contour of the lifting plate is vertically slidably and sealingly connected with the inner side surface of the storage space.

[0007] Preferably, there are multiple inlet rubber blocks, and the inlet gaps on each inlet rubber block respectively communicate the inside and outside of the storage space. A drain port is also provided at the lower end of the storage space.

[0008] Preferably, a partition plate is provided in the middle of the storage space. The partition plate divides the storage space into an upper space and a lower space, which are respectively located at the upper and lower ends of the storage space. Lifting plates are vertically slidably connected in the upper space and the lower space respectively. Openings are respectively provided at the upper ends of the upper space and the lower space. Inlet rubber blocks and inlet gaps are respectively provided at the lower ends of the upper space and the lower space.

[0009] Preferably, the driving threaded rod in the sampling cylinder is coaxially arranged with the sampling cylinder. The driving threaded rod is sealingly rotatably connected with the partition plate. Driving threads with the same helix direction are respectively provided at the upper and lower ends of the driving threaded rod. Each lifting plate is threadedly engaged with the part of the driving threaded rod with the driving thread.

[0010] Preferably, the driving threaded rod is not provided with driving threads at the upper end of the lower space and the lower end of the upper space respectively, and a touch rod is vertically slidably connected to the partition board.

[0011] Preferably, a descending airbag is provided at the upper end of the sampling cylinder and a counterweight is provided at the lower end, and an adjusting block is hermetically and slidably connected inside the descending airbag.

[0012] Preferably, there are two descending airbags, which are symmetrically arranged at both ends of the sampling cylinder respectively.

[0013] Preferably, an annular airbag is provided on the outer circumference of the floating disc, and a wire winder is fixedly connected to the upper end of the floating disc.

[0014] Preferably, an oval opening penetrating vertically is provided at the upper end of the floating disc, and an oval fixing member matching the oval opening is fixedly connected to the upper end of the sampling cylinder.

[0015] The technical solution of the present utility model has achieved the following beneficial technical effects:

[0016] 1. It can adapt to collection after rowing to a specific position in the water area and can also be used for water quality collection by casting;

[0017] 2. It can automatically stand on the water surface during operation and the collection cylinder always maintains a working posture;

[0018] 3. It can adjust the descending speed of the sampling cylinder by adjusting the descending airbag;

[0019] 4. It can always maintain a vertical state during the descending process of the sampling cylinder;

[0020] 5. It can perform sequential collection and can collect water quality samples in multiple water layers at different heights at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a second perspective view of the overall structure of the present utility model;

[0023] Figure 3 is a structural diagram of the sampling cylinder of the present utility model;

[0024] Figure 4 is a sectional view of the sampling cylinder of the present utility model;

[0025] Figure 5 is a partial sectional view of the sampling cylinder of the present utility model;

[0026] Figure 6 is an internal structural diagram of the sampling cylinder of the present utility model;

[0027] Figure 7 This is the structural diagram of the slow - descent airbag of the utility model;

[0028] Figure 8 This is the structural diagram of the water inlet gap of the utility model.

[0029] The reference numerals in the figure are represented as follows: 1, floating disc; 2, sampling cylinder; 3, winch; 4, lifting plate; 5, driving threaded rod; 6, water - inlet rubber block; 7, water - inlet gap; 8, drain port; 9, partition plate; 10, upper space; 11, lower space; 12, trigger rod; 13, slow - descent airbag; 14, counterweight; 15, adjusting block; 16, oval fixing piece. Specific implementation manner

[0030] This embodiment is described with reference to the accompanying drawings during use.

[0031] In the normal state of this embodiment, the floating disc 1 and the sampling cylinder 2 are in a connected state. The floating disc 1 is in a disc - shaped structure and is provided with an annular airbag on the outer ring, so that the floating disc 1 always floats on the water surface and remains stable. There is a through - hole with an oval opening vertically in the central part of the floating disc 1. And a sampling cylinder 2 is provided below the floating disc 1. The central part of the upper end surface of the sampling cylinder 2 is fixedly connected with an upward - extending oval fixing piece 16. The floating disc 1 and the sampling cylinder 2 are connected through the oval fixing piece 16. The oval fixing piece 16 passes through the oval through - hole, and then the oval fixing piece 16 is rotated so that the oval through - hole and the oval fixing piece 16 are staggered, so that the oval fixing piece 16 cannot fall downward, making the floating disc 1 and the sampling cylinder 2 connected. When it is necessary to separate the two, only need to rotate the oval fixing piece 16 to coincide with the oval through - hole. The shape of the connection part between the two is not limited to oval.

[0032] A winch 3 is fixedly connected to the upper end of the floating disc 1. A rope is wound inside the winch 3. The extending end of the rope is fixedly connected to the upper end of the oval fixing piece 16. After the floating disc 1 and the sampling cylinder 2 are separated, the depth of the sampling water area required is judged by the length of the rope released by the winch 3. When the rope is released to a specific length, it is the required water area depth. The upper end of the sampling cylinder 2 is a slow - descent airbag 13 and a counterweight 14 is provided at the lower end, so that the sampling cylinder 2 always remains vertical even when descending in water, and even when it touches the ground at the bottom, it can maintain the vertical state of the sampling cylinder 2 through the buoyancy of the slow - descent airbag 13. And the amount of air stored in the slow - descent airbag 13 is adjusted as needed. The adjusting block 15 in the slow - descent airbag 13 is used to adjust the space size of the air stored in the slow - descent airbag 13.

[0033] The storage space is located inside the sampling cylinder 2. The sampling cylinder 2 is cylindrical. A partition plate 9 is provided in the middle of the sampling cylinder 2. The storage space inside the sampling cylinder 2 is divided into an upper space 10 and a lower space 11 by the partition plate 9. Lift plates 4 are vertically slidably connected in the upper space 10 and the lower space 11 respectively. A driving threaded rod 5 is coaxially rotatably connected at the axis position of the sampling cylinder 2. The driving threaded rod 5 passes through the partition plate 9 and is rotatably connected in a sealed manner with the partition plate 9. The driving threaded rod 5 is driven by a driving motor fixedly connected to the upper end of the sampling cylinder 2. When not in use, the lift plates 4 are respectively located at the lower ends of the upper space 10 and the lower space 11. Water inlet rubber blocks 6 are provided at the lower ends of the upper space 10 and the lower space 11. The water inlet rubber blocks 6 connect the inside and outside of the storage space. The water inlet function is realized by opening a water inlet gap 7 communicating the inside and outside of the storage space on the water inlet rubber blocks 6. Since the water inlet part is a gap structure opened on a rubber material, and the gap seal is formed by the elasticity of the gap and the rubber material, water will not pass through the water inlet gap 7 without external pressure. The lift plates 4 are respectively located above the corresponding water inlet rubber blocks 6. A sealed space is formed between the lower end surfaces of the lift plates 4 and the lower ends of the corresponding spaces. Therefore, water will not enter the sampling cylinder 2 without permission.

[0034] When sampling is required, first pay out the wire through the wire reel 3 to a specific length. At this time, the sampling cylinder 2 is kept in a water layer at a specific depth. Then, the lift plates 4 are driven to move up and down by the rotation of the threaded rod. During the upward movement of the lift plates 4, since the outer edge of the lift plates 4 is a rubber layer in the elastic sealing material, a negative pressure is generated in the sealed space at the lower end of the lift plates 4. The external water is drawn into the sampling cylinder 2 for sampling through the negative pressure. In order to prevent the upper end of the lift plates 4 from being a sealed space and resulting in an inability to produce specific results, openings are provided at the upper ends of the upper space 10 and the lower space 11. When the sampling cylinder 2 enters the water, the space above the lift plates 4 located in the sampling cylinder 2 is filled with water, avoiding the problem that the sampling cylinder 2 cannot descend due to the formation of a cavity. When the lift plates 4 move upward, the water will be discharged from the opening part, so that the sampling cylinder 2 always maintains a stable posture in the water body.

[0035] When sampling, since sampling from different water layers is required, the lifting plates 4 in the upper space 10 and the lower space 11 need to act separately to achieve sampling from different water layers. Therefore, during the sampling process, the lower space 11 samples first, and after the sampling in the lower space 11 is completed, the upper space 10 samples. The sequence control principle is that each lifting plate 4 is initially located at the lower end of the corresponding space. The lower end of the driving threaded rod 5 in the upper space 10 is not provided with threads, and the lifting plate 4 in the upper space 10 always remains at the lower end under the action of gravity. Therefore, when the driving threaded rod 5 starts to rotate, the threads on the driving threaded rod 5 in the upper space 10 do not contact the lifting plate 4, and only the lifting plate 4 located in the lower space 11 can be driven through screw drive. After the lifting plate 4 in the lower space 11 moves upward to the set position, the sampling is completed. A touch rod 12 is vertically slidably connected to the partition plate 9 connecting the upper space 10 and the lower space 11. When the lifting plate 4 in the lower space 11 moves upward to a specific position, it will push the touch rod 12 upward, causing the lifting plate 4 in the upper space 10 to move upward and contact the threads on the driving threaded rod 5, so that the driving threaded rod 5 will drive the lifting plate 4 in the upper space 10 to move upward during subsequent rotation. At the same time, since the upper end of the driving threaded rod 5 in the lower space 11 is not provided with threads, even if the driving threaded rod 5 continues to rotate, it cannot drive the lifting plate 4 in the lower space 11 to move upward further. Thus, the sequential actions of the upper space 10 and the lower space 11 are completed through the above actions.

[0036] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the claims of this patent application.

Claims

1. A precise collector of bottom water quality in water area, characterized in that: The invention comprises a floating plate (1), the lower end surface of the floating plate (1) is detachably connected to a sampling tube (2), the floating plate (1) and the upper end surface of the sampling tube (2) are connected via a reel (3), a storage space is provided in the sampling tube (2), a lifting plate (4) is vertically slidably connected in the storage space, the lifting plate (4) is lifted and lowered by rotating a driving threaded rod (5) connected in the sampling tube (2), a water inlet rubber block (6) is provided on the outer side of the lower end of the sampling space, and each water inlet rubber block (6) is respectively provided with a water inlet slit (7) penetrating the outer wall of the sampling space.

2. The precise collector of bottom water quality in water area according to claim 1 is characterized in that: The outer edge of the lifting plate (4) is provided with a rubber layer, and the outer edge contour of the lifting plate (4) is vertically slidably and sealedly connected to the inner side surface of the storage space.

3. The precise collector of bottom water quality in water area according to claim 1 is characterized in that: There are multiple water inlet rubber blocks (6), and the water inlet gaps (7) on each water inlet rubber block (6) are connected to the inner and outer sides of the storage space respectively. A drainage outlet (8) is also provided at the lower end of the storage space.

4. The precise collector of bottom water quality in water area according to claim 1 is characterized in that: A partition plate (9) is provided in the middle of the storage space. The partition plate (9) divides the storage space into an upper space (10) and a lower space (11) and is located at the upper and lower ends of the storage space respectively. A lifting plate (4) is vertically slidably connected in the upper space (10) and the lower space (11). An opening is provided at the upper end of the upper space (10) and the lower space (11). A water inlet rubber block (6) and a water inlet gap (7) are provided at the lower end of the upper space (10) and the lower space (11).

5. The precise collector of bottom water quality in water area according to claim 4 is characterized in that: The driving threaded rod (5) in the sampling tube (2) is coaxially arranged with the sampling tube (2), the driving threaded rod (5) is sealingly rotatably connected with the partition plate (9), the upper and lower ends of the driving threaded rod (5) are respectively provided with driving threads with the same rotation direction, and each lifting plate (4) and the driving threaded rod (5) are threadedly matched with the driving threaded part.

6. The precise collector of bottom water quality in water area according to claim 5 is characterized in that: The driving threaded rod (5) is located at the upper end of the lower space (11) and the lower end of the upper space (10), and no driving thread is provided. A trigger rod (12) is vertically slidably connected to the partition plate (9).

7. The precise collector of bottom water quality in water area according to claim 1 is characterized in that: The upper end of the sampling tube (2) is provided with a slow-descent airbag (13) and the lower end is provided with a counterweight block (14), and an adjustment block (15) is sealed and slidably connected inside the slow-descent airbag (13).

8. The precise collector of bottom water quality in water area according to claim 7 is characterized in that: There are two slow-descent airbags (13) which are symmetrically arranged at the two ends of the sampling tube (2).

9. The precise collector of bottom water quality in water area according to claim 1 is characterized in that: An annular air bag is provided on the outer circumference of the floating disk (1), and a wire reel (3) is fixedly connected to the upper end of the floating disk (1).

10. The precise collector of bottom water quality in water area according to claim 1, characterized in that: The upper end of the floating plate (1) is provided with an elliptical opening that penetrates vertically, and the upper end of the sampling tube (2) is fixedly connected with an elliptical fixing piece (16) that matches the elliptical opening.

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