Device for obtaining water samples of different water layers

Abstract

The utility model discloses a device for acquiring water samples of different water layers, which relates to the field of water sampling and comprises a sampling main body, the sampling main body is provided with a plurality of mutually independent chambers, all the chambers are arranged along the depth direction of the sampling main body, each chamber is provided with a sampling port, a slide rail is arranged at the sampling port, a baffle is slidably connected in the slide rail, and the baffle is connected with the sampling main body. The baffle slides, so that the sampling port can be switched between an opened state and a closed state; all the baffles are connected with a driving device, and the driving device can drive the baffles to slide in the sliding rails; the top of each chamber is connected with an exhaust pipe, and an exhaust port of the exhaust pipe is close to the topmost position of the sampling main body. According to the utility model, water samples of different water layers can be effectively obtained, electronic or electric equipment is not needed, pure mechanical sampling is utilized, the service life of the device is prolonged, and the possibility of damage is reduced.

Description

Technical Field

[0001] This utility model relates to the field of water sampling, and in particular to a device for obtaining water samples from different water layers. Background Technology

[0002] Water quality monitoring is an important component of environmental monitoring, accurately, promptly, and comprehensively reflecting the current state of water quality and providing crucial scientific data for water environment management, pollution source control, and environmental planning. To gain a comprehensive understanding of water quality and improve the accuracy of water quality testing, it is necessary to sample different water layers at the same location. Therefore, there is a need to develop a device capable of acquiring water samples from different water layers. Utility Model Content

[0003] The purpose of this invention is to provide a water sample acquisition device for different water layers, which can effectively acquire water samples from different water layers without the need for electronic or electrical equipment. It utilizes purely mechanical sampling, thereby improving the service life of the device and reducing the possibility of damage.

[0004] The technical solution adopted by this utility model is as follows: A water sample acquisition device for different water layers includes a sampling body, which has multiple independent chambers. All chambers are arranged along the depth direction of the sampling body. Each chamber has a sampling port. A slide rail is provided at the sampling port. A baffle is slidably connected in the slide rail. The sliding of the baffle can switch the sampling port between open and closed states. All baffles are connected to a driving device, which can drive the baffle to slide in the slide rail. An exhaust pipe is connected to the top of each chamber. The exhaust port of the exhaust pipe is close to the top of the sampling body.

[0005] Furthermore, the slide rail is disposed on the outer side of the sampling body.

[0006] Furthermore, a sealing groove is provided at the sampling port position on the sampling body, the sealing groove surrounds the sampling port, a sealing ring is present in the sealing groove, and a baffle presses the sealing ring.

[0007] Furthermore, the driving device includes a pull rod and a connecting rod connected between the baffles, one end of the pull rod having a handle, and the other end of the pull rod being connected to the baffle closest to the top of the sampling body.

[0008] Furthermore, the sampling body is also provided with a limiting plate, which is located below the slide rail to limit the lower limit of the baffle, and the connecting rod passes through the limiting plate.

[0009] Furthermore, a return spring is fitted onto the connecting rod, and the return spring is located between the baffle and the limiting plate.

[0010] Furthermore, a fixing plate is provided on the top of the sampling body, which is connected to the exhaust pipe.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] 1. This utility model arranges multiple independent chambers along the depth direction of the sampling body, so that after the sampling body is immersed in the water, the independent chambers at different depths can obtain water samples from the corresponding positions at the sampling port, thereby realizing stratified sampling of the water body.

[0013] 2. This utility model does not contain any electronic or electrical components. Sampling is achieved through mechanical linkage, which is simple in structure and will not cause electronic or electrical components to be corroded by water or short-circuited by current. This effectively improves the service life of the water sample acquisition device and reduces the possibility of damage. Attached Figure Description

[0014] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 for Figure 1 Cross-sectional view along the middle BB direction;

[0018] Figure 4 A top view of the connecting rod passing through the baffle;

[0019] The markings in the diagram are: 1-Sampling body; 2-Exhaust pipe; 3-Slide rail; 4-Baffle; 5-Connecting rod; 6-Pull rod; 7-Handle; 8-Reset spring; 9-Limiting plate; 10-Sealing ring; 11-Cavity; 12-Sampling port; 13-Fixing plate. Detailed Implementation

[0020] In the description of this specification, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this specification and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this specification.

[0021] Furthermore, the use of terms such as "horizontal" or "vertical" in this specification does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0022] In the description of this specification, it should also be noted that, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” should be interpreted broadly. For example, a link can be a fixed link, a detachable link, or an integral link; it can be a mechanical link or an electrical link; it can be a direct link or an indirect link through an intermediate medium; it can be a connection within two components.

[0023] Example 1

[0024] like Figures 1-4 As shown, a water sampling device for different water layers includes a sampling body 1, which has multiple independent chambers 11. All chambers 11 are arranged along the depth direction of the sampling body 1. Each chamber 11 has a sampling port 12. A slide rail 3 is provided at the sampling port 12. A baffle 4 is slidably connected in the slide rail 3. The sliding of the baffle 4 can switch the sampling port 12 between open and closed states. All baffles 4 are connected to a driving device, which can drive the baffles 4 to slide in the slide rail 3. An exhaust pipe 2 is connected to the top of each chamber 11, and the exhaust port of the exhaust pipe 2 is located near the top of the sampling body 1. With this structure, water layer sampling can be achieved.

[0025] In this embodiment, the water sample acquisition device operates as follows:

[0026] S1: Measure the water depth and select a water sampling device that is larger than the water depth for the sampling body 1 to ensure that the top of the sampling body 1 can be exposed above the water surface;

[0027] S2: Check whether the baffle 4 is blocking the sampling port 12, and ensure that all sampling ports 12 are blocked by the baffle 4;

[0028] S3: Lower the sampling body 1 vertically until the bottom of the sampling body 1 reaches the bottom of the water;

[0029] S4: The sampling port 12 is opened by controlling all baffles 4 to slide within the slide rail 3 through the drive device.

[0030] S5: Water at the water layer at the depth corresponding to sampling port 12 enters chamber 11 from sampling port 12;

[0031] S6: After a period of time, such as 1 minute, the drive device drives the baffle 4 to slide in the track, the baffle 4 resets and closes the sampling port 12, and the sampling body 1 is lifted to complete the sampling.

[0032] As described above, multiple independent chambers 11 are arranged along the depth direction of the sampling body 1, so that after the sampling body 1 penetrates into the water, the independent chambers 11 at different depths can obtain water samples from the corresponding positions at the sampling port 12, thereby achieving stratified sampling of the water body. Moreover, since there are no electronic or electrical components, the sampling is achieved by mechanical linkage, which is simple in structure and will not cause electronic or electrical components to be corroded by water or short-circuited by current, thereby effectively improving the service life of the water sampling device and reducing the possibility of damage.

[0033] In this embodiment, the exhaust pipe 2 can effectively ensure that the water sample enters the chamber 11 smoothly and avoid the water sample failing to enter due to the gas pressure in the chamber 11. That is, during the process of the water sample entering the chamber 11, the gas in the chamber 11 will be discharged through the exhaust pipe 2.

[0034] Example 2

[0035] Based on Example 1, further feasible implementation methods are proposed.

[0036] In one feasible implementation, the slide rail 3 is disposed on the outer side of the sampling body 1, which facilitates the assembly of the slide rail 3, baffle 4 and sealing ring 10 as described later during production.

[0037] In one feasible implementation, a sealing groove is provided at the sampling port 12 position on the sampling body 1. The sealing groove surrounds the sampling port 12 and contains a sealing ring 10. The baffle 4 presses the sealing ring 10. By setting the sealing ring 10, the inside of the chamber 11 is sealed, which is beneficial for the storage of water samples and reduces the possibility of other water layers entering the chamber 11 when the sampling body 1 is placed and lifted, thereby improving the sampling accuracy.

[0038] In one feasible implementation, the driving device includes a pull rod 6 and a connecting rod 5 connected between the baffles 4. One end of the pull rod 6 has a handle 7, and the other end of the pull rod 6 is connected to the baffle 4 closest to the top of the sampling body 1. When the operator lifts the pull rod 6, all the baffles 4 move upward, thereby opening the sampling port 12; when the operator pushes the pull rod 6 down, all the baffles 4 move downward, thereby closing the sampling port 12.

[0039] Furthermore, a limiting plate 9 is also provided on the sampling body 1. The limiting plate 9 is located below the slide rail 3 to limit the lower limit of the baffle 4 and ensure effective closure. The connecting rod 5 passes through the limiting plate 9 so that the limiting plate 9 does not affect the movement of the connecting rod 5, and thus does not affect the movement of the baffle 4.

[0040] Furthermore, a return spring 8 is fitted onto the connecting rod 5, which is located between the baffle 4 and the limiting plate 9. When the baffle 4 is lifted, the return spring 8 is compressed under the constraint of the limiting plate 9, thus increasing the deformation of the return spring 8. Furthermore, after the operator releases the force of the lifting rod 6, the return spring 8 releases its elastic force, causing the baffle 4 to reset and close the sampling port 12 again. Furthermore, due to the constraint of the limiting plate 9, the return spring 8 remains compressed, i.e., it always maintains elastic potential energy, thus ensuring that the baffle 4 remains closed to the sampling port 12 without external interference, thereby improving the stability of the baffle 4's closure. This plays a crucial role in the storage of water samples.

[0041] In one feasible implementation, a fixing plate 13 is provided on the top of the sampling body 1. The fixing plate 13 is connected to the exhaust pipe 2 to improve the position and assembly stability of the exhaust pipe 2.

[0042] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A device for obtaining water samples from different water layers, characterized in that: The sampler includes a sampling body (1) having multiple independent chambers (11) arranged along the depth of the sampling body (1). Each chamber (11) has a sampling port (12) and a slide rail (3) at the sampling port (12). A baffle (4) is slidably connected in the slide rail (3). The sliding of the baffle (4) allows the sampling port (12) to switch between open and closed states. All baffles (4) are connected to a driving device that can drive the baffles (4) to slide in the slide rail (3). An exhaust pipe (2) is connected to the top of each chamber (11), and the exhaust port of the exhaust pipe (2) is located near the top of the sampling body (1).

2. The water sample acquisition device according to claim 1, characterized in that: The slide rail (3) is set on the outer side of the sampling body (1).

3. The water sampling device of claim 1, wherein: A sealing groove is provided at the sampling port (12) position on the sampling body (1), the sealing groove surrounds the sampling port (12), a sealing ring (10) exists in the sealing groove, and the baffle (4) presses the sealing ring (10).

4. The water sampling device of claim 1, wherein: The drive device includes a pull rod (6) and a connecting rod (5) connected between baffles (4). One end of the pull rod (6) has a handle (7), and the other end of the pull rod (6) is connected to the baffle (4) closest to the top of the sampling body (1).

5. The water sampling device of claim 4, wherein: The sampling body (1) is also provided with a limiting plate (9), which is located below the slide rail (3) to limit the lower limit of the baffle (4), and the connecting rod (5) passes through the limiting plate (9).

6. The water sampling device of claim 5, wherein: A reset spring (8) is fitted on the connecting rod (5), and the reset spring (8) is located between the baffle (4) and the limiting plate (9).

7. The water sampling device of claim 1, wherein: The top of the sampling body (1) is provided with a fixing plate (13), which is connected to the exhaust pipe (2).

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