A sampling device for water quality detection

Abstract

The utility model discloses a kind of sampling devices for water quality detection, it is related to water quality detection technical field, including support cylinder, the inner wall of support cylinder is fixedly installed with fixed plate, the outside of fixed plate is detachably connected with sampling cylinder, the inside of sampling cylinder is connected with connecting pipe, the inside of connecting pipe is slidably connected with sealing plug, the outer surface of sealing plug is detachably connected with fixed frame, the upper surface of sampling cylinder is fixedly installed with connecting plate, the inside of connecting plate is slidably connected with moving rod, by the cooperation between sealing plug, push plate and fixed rope, sealing plug can seal the inside of sampling cylinder, by the continuous upward movement of push plate, multiple sampling cylinders can be controlled to open in turn, water source of different water layers can be sampled, sampling device can sample multiple water quality in single time, convenient to use, realize the function of sampling different water layers, it is beneficial to reduce the number of sampler input.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, specifically a sampling device for water quality testing. Background Technology

[0002] Water quality testing is a technology that analyzes pollutants, physicochemical properties, and microorganisms in water bodies to assess whether the water quality meets safety standards. Core indicators include dissolved oxygen, heavy metals, and organic matter. Water quality testing sampling devices are the key tools for collecting water samples.

[0003] The existing water sampling devices are all integrated structures. When sampling, the sampling device is placed in the sampling water area, and then the piston and other components are used to control the water flow into the sampling tube. Since there is no structure for stratified sampling of the water source, the sampling device can only sample one layer of water quality at a time. After the sampling tube is taken out, it needs to be put in again to sample different water layers. The sampler needs to be put in many times, which is quite cumbersome.

[0004] To address these issues, we have provided a water quality testing sampling device. Utility Model Content

[0005] 1) Technical problems to be solved

[0006] This utility model proposes a sampling device for water quality testing, which solves the problem that the sampling device can only sample one layer of water at a time by means of the cooperation between the sealing plug, the push plate and the fixing rope.

[0007] (ii) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a sampling device for water quality testing, comprising a support cylinder, a fixing plate fixedly installed on the inner wall of the support cylinder, a sampling cylinder detachably connected to the outside of the fixing plate, a connecting pipe connected to the inside of the sampling cylinder, a sealing plug slidably connected inside the connecting pipe, and a fixing frame detachably connected to the outer surface of the sealing plug.

[0009] A connecting plate is fixedly installed on the upper surface of the sampling tube, and a movable rod is slidably connected inside the connecting plate. A rubber band is fixedly installed at one end of the movable rod.

[0010] A support rod is fixedly installed on the inner wall of the support cylinder. A fixing ring is slidably connected to the outer surface of the support rod. A push plate is fixedly installed on the outer surface of the fixing ring. An installation plate is fixedly installed on the outer surface of the fixing ring. A fixing rope is installed on the outside of the installation plate.

[0011] Furthermore, a pull rope is fixedly installed on the outer surface of the support cylinder, and multiple sets of marking floats are fixedly installed on the outer surface of the pull rope.

[0012] Furthermore, the upper and lower edges of the fixing frame are both wedge-shaped structures, the upper surface of the push plate is a wedge-shaped structure, and the outer surface of the push plate is slidably connected to the outer surface of the fixing frame.

[0013] Furthermore, adjacent movable rods are connected by rubber bands, one end of each movable rod is fixedly installed on the outer surface of the fixed frame, and the sealing plug enters the interior of the connecting tube under the action of the rubber bands.

[0014] Furthermore, a limiting plate is fixedly installed on the outer surface of the support rod, and the outer surface of the limiting plate is slidably connected to the inside of the fixing ring.

[0015] Furthermore, multiple sets of sampling tubes are arranged inside the support tube, and a drain pipe is connected inside the sampling tube.

[0016] Furthermore, a protective shell is installed on the outside of the support cylinder, a spool is rotatably connected inside the protective shell, the fixing rope is wound around the outside of the spool, and a drive assembly is installed on the outside of the spool.

[0017] (iii) Beneficial effects:

[0018] Compared with existing technologies, this water quality testing sampling device has the following advantages:

[0019] I. This water quality testing sampling device, through the cooperation of a sealing plug, a push plate, and a fixing rope, allows the sealing plug to seal the inside of the sampling cylinder, the fixing rope to pull the push plate to move, and the push plate to push the fixing frame to move. At this time, the sealing plug opens the inside of the connecting pipe, allowing external water to enter the inside of the sampling cylinder. By continuously moving the push plate upward, multiple sets of sampling cylinders can be opened sequentially, enabling sampling of water sources at different water layers. The sampling device can sample multiple layers of water quality at a time, is easy to use, and realizes the function of sampling different water layers, which helps to reduce the number of times the sampler needs to be deployed.

[0020] II. This water quality testing sampling device, by setting up components such as marker floats and rubber bands, allows the marker floats at different positions to float on the water surface when the length of the fixing rope is lowered into the water source, thus providing auxiliary marking of the support cylinder position. The rubber bands are tied to the outside of the moving rod, making installation convenient and quick to replace. Under the pull of the rubber bands, the sealing plugs on both sides can be controlled to seal the inside of the connecting pipe, reducing the outflow of the sampled water source. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0022] Figure 1 This is a structural diagram of the present invention;

[0023] Figure 2 This is a diagram of the internal structure of the support cylinder of this utility model;

[0024] Figure 3 This utility model Figure 2 A magnified view of a portion of the image;

[0025] Figure 4 This is a structural diagram of the sampling cylinder component of this utility model;

[0026] Figure 5 This is a program diagram of the driver component of this utility model.

[0027] In the diagram: 1. Support cylinder; 2. Fixing plate; 3. Sampling cylinder; 4. Connecting pipe; 5. Sealing plug; 6. Fixing frame; 7. Connecting plate; 8. Moving rod; 9. Rubber band; 10. Support rod; 11. Fixing ring; 12. Push plate; 13. Mounting plate; 14. Fixing rope; 15. Pull rope; 16. Marking float; 17. Limiting plate; 18. Drain pipe; 19. Protective shell; 20. Spool; 21. Drive assembly. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a sampling device for water quality testing, including a support cylinder 1, a fixing plate 2 fixedly installed on the inner wall of the support cylinder 1, a sampling cylinder 3 detachably connected to the outside of the fixing plate 2, a connecting pipe 4 connected inside the sampling cylinder 3, multiple sets of sampling cylinders 3 arranged vertically inside the support cylinder 1, a drain pipe 18 connected inside the sampling cylinder 3, and multiple sets of slots arranged inside the support cylinder 1 to avoid obstructing the flow of water. The fixing plate 2 is fixed to the sampling cylinder 3 by fixing bolts. Multiple sets of connecting pipes 4 are connected inside the sampling cylinder 3. The connecting pipes 4 are located inside the sampling cylinder 3 near the upper part to reduce the outflow of water after water is passed through. After water collection, the internal water can be discharged by turning the handle outside the drain pipe 18.

[0030] A pull rope 15 is fixedly installed on the outer surface of the support cylinder 1. Multiple sets of marker buoys 16 are fixedly installed on the outer surface of the pull rope 15. The marker buoys 16 at different positions have different colors. When the support cylinder 1 is in different positions, the marker buoys 16 at different positions will float on the water surface. The marker buoys 16 can be used to locate the position of the support cylinder 1, which is convenient for sampling different water layers.

[0031] A sealing plug 5 is slidably connected inside the connecting pipe 4. A fixing frame 6 is detachably connected to the outer surface of the sealing plug 5. A connecting plate 7 is fixedly installed on the upper surface of the sampling cylinder 3. A moving rod 8 is slidably connected inside the connecting plate 7. A rubber band 9 is fixedly installed at one end of the moving rod 8. Adjacent moving rods 8 are connected by rubber bands 9. One end of the moving rod 8 is fixedly installed to the outer surface of the fixing frame 6. The sealing plug 5 enters the interior of the connecting pipe 4 under the action of the rubber band 9. The rubber band 9 is tied to one end of the adjacent moving rod 8. The material is readily available and the installation is quick. The movement of the moving rod 8 can be limited by the contact between the sealing plug 5 and the connecting pipe 4 and the sliding of the moving rod 8 inside the connecting plate 7. At this time, the moving rod 8 is limited by two points. The rubber band 9 can pull the sealing plug 5 to move. When the fixing frame 6 is not subjected to external force, the rubber band 9 pulls the sealing plug 5 into the interior of the connecting pipe 4. At this time, the interior of the connecting pipe 4 is sealed and the interior of the sampling cylinder 3 is sealed. Conversely, the connecting pipe 4 is open and the sampling cylinder 3 is connected from both ends, allowing water to enter the interior of the sampling cylinder 3.

[0032] A support rod 10 is fixedly installed on the inner wall of the support cylinder 1. A fixing ring 11 is slidably connected to the outer surface of the support rod 10. A limiting plate 17 is fixedly installed on the outer surface of the support rod 10. The outer surface of the limiting plate 17 is slidably connected to the inside of the fixing ring 11. The movement of the fixing ring 11 can be limited by the cooperation of the limiting plate 17 and the support rod 10. At this time, the fixing ring 11 will move linearly outside the support rod 10 without rotating.

[0033] A push plate 12 is fixedly installed on the outer surface of the fixed ring 11. The upper and lower edges of the fixed frame 6 are wedge-shaped structures. The upper surface of the push plate 12 is also wedge-shaped. The outer surface of the push plate 12 is slidably connected to the outer surface of the fixed frame 6. When the push plate 12 moves, it can push the fixed frame 6 to move to the outside of the sampling tube 3. At this time, the fixed frame 6 can drive the sealing plug 5 to move to the outside of the connecting pipe 4. At this time, the inside of the connecting pipe 4 is opened, and the external water source can enter the inside of the sampling tube 3 through the connecting pipes 4 on both sides. By the push plate 12 contacting the fixed frame 6 at different positions, the opening of different sampling tubes 3 can be controlled, thereby further realizing water quality sampling of different water layers.

[0034] A mounting plate 13 is fixedly installed on the outer surface of the fixed ring 11. A fixing rope 14 is installed on the outside of the mounting plate 13. A protective shell 19 is installed on the outside of the support cylinder 1. A bobbin 20 is rotatably connected inside the protective shell 19. The fixing rope 14 is wound around the outside of the bobbin 20. A drive assembly 21 is installed on the outside of the bobbin 20. The drive assembly 21 mainly consists of a drive motor, a metal induction sensor, a metal plate, and a PLC controller. The metal plate is installed on the outside of the bobbin 20. The PLC controller receives signals. When the drive motor drives the bobbin 20 to rotate, it can control the rotation of the metal plate. A counting instruction is used. When the metal induction sensor receives a signal of one rotation of the metal plate, it is recorded as one signal. The bobbin 20 rotates three times. The push plate 12 will move to the fixed frame 6 and control the sealing plug 5 to contact the seal. Then it moves up again and so on. By recording the rotation of the bobbin 20, the position of the push plate 12 can be controlled. The instruction and structure are simple and efficient.

[0035] Working principle: The rubber band 9 can pull the sealing plugs 5 on both sides into the interior of the connecting pipe 4, at which point the connecting pipe 4 is sealed. Then, the drive assembly 21 controls the rotation of the spool 20. The rotation of the spool 20 a fixed number of times controls the push plate 12 to move to different heights according to the instructions. At this time, the push plate 12 will move outside the support rod 10. When the push plate 12 moves, it uses the inclined plane to squeeze the fixed frame 6 to move. At this time, the sealing plug 5 is released from the seal on the connecting pipe 4, and the external water source enters the interior of the sampling cylinder 3. According to the instructions, the push plate 12 moves upward in sequence, and the rubber band 9 below can control the sealing plug 5 to seal the connecting pipe 4 again.

[0036] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A sampling device for water quality testing, comprising a support cylinder (1), characterized in that: A fixing plate (2) is fixedly installed on the inner wall of the support cylinder (1). A sampling cylinder (3) is detachably connected to the outside of the fixing plate (2). A connecting pipe (4) is connected inside the sampling cylinder (3). A sealing plug (5) is slidably connected inside the connecting pipe (4). A fixing frame (6) is detachably connected to the outer surface of the sealing plug (5). A connecting plate (7) is fixedly installed on the upper surface of the sampling tube (3), and a moving rod (8) is slidably connected inside the connecting plate (7). A rubber band (9) is fixedly installed at one end of the moving rod (8). A support rod (10) is fixedly installed on the inner wall of the support cylinder (1). A fixing ring (11) is slidably connected to the outer surface of the support rod (10). A push plate (12) is fixedly installed on the outer surface of the fixing ring (11). An installation plate (13) is fixedly installed on the outer surface of the fixing ring (11). A fixing rope (14) is installed on the outside of the installation plate (13).

2. The sampling device for water quality testing according to claim 1, characterized in that: A pull rope (15) is fixedly installed on the outer surface of the support cylinder (1), and multiple sets of marking floats (16) are fixedly installed on the outer surface of the pull rope (15).

3. The sampling device for water quality testing according to claim 1, characterized in that: The upper and lower edges of the fixing frame (6) are wedge-shaped, the upper surface of the push plate (12) is wedge-shaped, and the outer surface of the push plate (12) is slidably connected to the outer surface of the fixing frame (6).

4. A sampling device for water quality testing according to claim 1, characterized in that: The adjacent moving rods (8) are connected by rubber bands (9). One end of the moving rod (8) is fixedly installed on the outer surface of the fixed frame (6). The sealing plug (5) enters the interior of the connecting pipe (4) under the action of the rubber band (9).

5. A sampling device for water quality testing according to claim 1, characterized in that: A limiting plate (17) is fixedly installed on the outer surface of the support rod (10), and the outer surface of the limiting plate (17) is slidably connected to the inside of the fixing ring (11).

6. A sampling device for water quality testing according to claim 1, characterized in that: The sampling tube (3) is arranged in multiple sets inside the support tube (1), and the sampling tube (3) is connected to a drain pipe (18).

7. A sampling device for water quality testing according to claim 1, characterized in that: The support cylinder (1) is equipped with a protective shell (19) on its outside. A spool (20) is rotatably connected inside the protective shell (19). The fixing rope (14) is wound around the outside of the spool (20). A drive assembly (21) is installed on the outside of the spool (20).

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