Multi-cavity sampling device for water quality detection

Abstract

The utility model provides a multi-cavity sampling device for water quality detection, which comprises a barrel body, a stirrer, a cable and a detection probe, the stirrer is connected with the barrel body, the cable is connected with the detection probe, and the detection probe extends into the barrel body to realize detection of water in the barrel body; the stirrer comprises a stirring shaft, stirring blades and a stirring motor, the stirring motor is fixed at the top end of the barrel, the stirring blades are fixedly connected with the stirring shaft, and the stirring shaft is fixedly connected with the output end of the stirring motor; the stirring shaft and the stirring blades are positioned in the barrel; and the stirring motor is externally connected with a power supply. The device disclosed by the utility model has the beneficial effects that the detection reading of four indexes of PH, dissolved oxygen, conductivity and turbidity can be realized at the same time, the operation steps are saved, and the detection efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rural domestic sewage treatment, in particular to a multi-cavity sampling device for water quality detection. Background Art

[0002] In the detection of influent water quality of rural domestic sewage treatment stations, in order to ensure the accuracy of the detection data, water quality indicators such as pH, dissolved oxygen, conductivity and turbidity should be tested at the sampling site, which can reflect the influent water quality of the treatment station to a certain extent. At present, these four indicators are often tested with portable measuring instruments. Generally, the operator first takes out the water sample with the sampling device, and then uses the portable detection instrument to test the water sample. With the continuous improvement and innovation of water quality sampling devices, the sampling device also has the function of water quality index detection, making on-site operation more convenient and water quality detection more accurate.

[0003] Existing detection sampling devices usually require manual stirring of the detection probe to detect the value, and the detection sampling structure is a single single cavity. Each sampling can only detect one indicator. To detect other indicators, the sampler must be taken out and the probe must be replaced before testing. The steps are relatively cumbersome and the operation is inconvenient. Utility Model Content

[0004] In view of this, the utility model aims to propose a multi-cavity sampling device for water quality detection, so as to simultaneously realize the detection readings of four indicators, namely pH, dissolved oxygen, conductivity and turbidity, save operating steps and effectively improve the detection efficiency.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] The invention discloses a multi-cavity sampling device for water quality detection.

[0007] Furthermore, it includes a cylinder, an agitator, a cable, and a detection probe. The agitator is connected to the cylinder, the cable is connected to the detection probe, and the detection probe extends into the cylinder to detect the water inside the cylinder; the agitator includes a stirring shaft, stirring blades, and a stirring motor. The stirring motor is fixed at the top of the cylinder, the stirring blades are fixedly connected to the stirring shaft, and the stirring shaft is fixedly connected to the output end of the stirring motor; the stirring shaft and the stirring blades are both located inside the cylinder, and the stirring motor is connected to an external power supply.

[0008] Furthermore, the cylinder is a cylinder with a conical bottom, and the hollow inside is a sampling cavity for carrying the water to be tested; the outer wall of the cylinder is provided with a plurality of evenly distributed testing holes, and the hole axes of the testing holes are perpendicular to the cylinder.

[0009] Furthermore, it also includes a detection pipe, which is a hollow elbow. The detection pipe is embedded in the detection hole. One end of the detection pipe is located outside the cylinder and the hole axis of this end coincides with the hole axis of the detection hole. The other end of the detection pipe is located inside the cylinder and the hole axis of this end is parallel to the axis of the cylinder, so that the detection pipe is connected with the water body inside the cylinder.

[0010] Furthermore, the space where water exists inside the detection pipe is the detection cavity; the detection probe extends from the outside of the cylinder through the detection hole into the detection cavity of the detection pipe to realize the detection of the water body.

[0011] Furthermore, a water inlet hole is opened on the top of the cylinder, and the water inlet is connected to the sampling cavity inside the cylinder.

[0012] Furthermore, the stirring shaft is coaxial with the cylinder, and the plurality of stirring blades are respectively located at the upper, middle and lower parts of the stirring shaft, and the diameter of the stirring blades increases from top to bottom.

[0013] Furthermore, the gap between the detection pipe and the detection hole is sealed by a rubber ring.

[0014] Furthermore, it includes four detection pipes, four detection holes, and four detection probes. The detection pipes and the detection holes correspond to each other one by one. The detection probes are respectively extended into the detection cavity of each detection pipe to realize the detection and analysis of the pH, dissolved oxygen, conductivity, and turbidity water quality indicators of the water body inside the cylinder.

[0015] Compared with the prior art, the multi-chamber sampling device for water quality detection described in the utility model has the following beneficial effects:

[0016] (1) The multi-chamber sampling device for water quality detection described in the utility model can simultaneously detect and analyze four water quality indicators, namely pH, dissolved oxygen, conductivity and turbidity, when sampling water in the regulating tank of a rural sewage treatment station, thereby greatly improving the detection efficiency;

[0017] (2) The multi-chamber sampling device for water quality testing described in the utility model, by providing a stirrer, eliminates the need for manual stirring of the probe for testing, thus saving time and effort and improving efficiency;

[0018] (3) The utility model discloses a multi-cavity sampling device for water quality detection, wherein the diameter of the stirring blades of the agitator increases from top to bottom, thereby ensuring that the upper stirring blades do not touch the inner wall of the detection cavity and the detection pipe during operation, and making it easier for the water to generate a vortex during stirring, so that the water sample taken in the sampling device can be mixed more evenly and the reading efficiency can be faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of a front cross-sectional view of a sampling device according to an embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of a front cross-sectional view of a sampling device according to an embodiment of the utility model;

[0022] Figure 3 It is a schematic top view of the sampling device described in an embodiment of the utility model.

[0023] Description of reference numerals:

[0024] 1- cylinder; 2- stirring shaft; 3- stirring blade; 4- water inlet hole; 5- detection hole; 6- detection pipeline; 7- stirring motor; 8- sampling cavity; 9- cable; 10- detection probe; 11- detection cavity. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] Embodiment 1:

[0028] like Figure 1-Figure 2 As shown, a multi-cavity sampling device for water quality detection, the main body of which is composed of a barrel 1, a stirrer, a cable 9, and a detection probe 10. The stirrer is connected to the barrel 1, the cable 9 is connected to the detection probe 10, the detection probe 10 extends into the barrel 1, the barrel 1 is used to collect water, and the stirrer is used to homogenize the water; the other end of the cable 9 is connected to a detector or other terminal, and the detection probe 10 and the cable 9 are used to detect water indicators inside the barrel 1 and upload data.

[0029] Specifically, the agitator includes a stirring shaft 2, a stirring blade 3, and a stirring motor 7. The stirring motor 7 is fixed at the top of the barrel 1. The stirring blade 3 is fixedly connected to the stirring shaft 2, and the stirring shaft 2 is fixedly connected to the output end of the stirring motor 7. The stirring shaft 2 and the stirring blade 3 are both located inside the barrel 1, and the stirring motor 7 is connected to an external power source. The stirring principle of the agitator is to control and drive the stirring motor 7 through an external power source to drive the stirring shaft 2 to rotate so that the stirring blade 3 stirs the water in the barrel 1.

[0030] Specifically, Figure 1As shown, the cylinder 1 is a cylinder, and a water inlet 4 is provided on the top of the cylinder 1, and the water inlet is connected to the sampling chamber 8 inside the cylinder 1. The bottom of the cylinder 1 is conical, and the advantage is that it reduces the buoyancy of the cylinder 1 and increases its stability, so that it can be quickly and stably inserted into the water. The hollow part inside the cylinder 1 is the sampling chamber 8, which is used to carry the water body to be detected. The outer wall of the cylinder 1 is provided with a number of evenly distributed detection holes 5, and the hole axis of the detection hole 5 is perpendicular to the cylinder 1. The sampling device also includes a detection pipe 6, the detection tube is a hollow elbow, the detection pipe 6 is embedded in the detection hole 5, one end of the detection pipe 6 is located outside the cylinder 1 and the hole axis of this end coincides with the hole axis of the detection hole 5, and the other end of the detection pipe 6 is located inside the cylinder 1 and the hole axis of this end is parallel to the axis of the cylinder 1, so that the detection pipe 6 is connected to the water body inside the cylinder 1. The space where water exists inside the detection pipe 6 is the detection chamber 11. The detection probe 10 extends from the outside of the cylinder 1 through the detection hole 5 into the detection chamber 11 of the detection pipe 6 to detect the water body. The stirring shaft 2 is coaxial with the cylinder 1. A plurality of stirring blades 3 are respectively located at the upper, middle and lower parts of the stirring shaft 2. The diameter of the stirring blades 3 increases from top to bottom to ensure that the stirring blades 3 do not interfere with the detection pipe 6 during operation.

[0031] Optionally, the gap between the detection pipe 6 and the detection hole 5 is preferably sealed with a rubber ring.

[0032] The workflow of this embodiment is as follows:

[0033] Embodiment 2: The cylinder 1 collects the water to be tested through the water inlet 4, and the detection probe 10 is extended from the outside of the cylinder 1 through the detection hole 5 into the detection cavity 11 of the detection pipe 6, and the cable 9 is pulled to keep the detection probe 10 suspended in a suitable position, and the stirring motor 7 is started to quickly mix the water in the sampling cavity 8. After the reading of the detector is stable, the stirring is stopped, and the water body indicators are read and recorded to complete the sampling test.

[0034] like Figure 3 As shown, this embodiment includes four detection pipes 6, four detection holes 5, and four detection probes 10. The detection pipes 6 correspond to the detection holes 5 one by one, and the detection probes 10 extend into the detection chambers 11 of the detection pipes 6 respectively, so as to detect and analyze the pH, dissolved oxygen, conductivity, and turbidity water quality indicators of the water body inside the cylinder 1. A mesh structure unit is provided inside the detection chamber 11 of the detection pipe 6, so that the water body around the detection chamber 11 can be evenly mixed, so that the detection result of the detection probe 10 is more accurate.

[0035] Specifically, the information transmission, signal processing, control method, and control logic involved in this technical solution can be implemented using existing technologies.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-chamber sampling device for water quality detection, characterized in that: It comprises a cylinder (1), a stirrer, a cable (9), and a detection probe (10), wherein the stirrer is connected to the cylinder (1), the cable (9) is connected to the detection probe (10), and the detection probe (10) extends into the cylinder (1) to detect the water inside the cylinder (1); The stirrer comprises a stirring shaft (2), a stirring blade (3), and a stirring motor (7); the stirring motor (7) is fixed to the top of the cylinder (1); the stirring blade (3) is fixedly connected to the stirring shaft (2); and the stirring shaft (2) is fixedly connected to the output end of the stirring motor (7); The stirring shaft (2) and the stirring blade (3) are both located inside the cylinder (1), and the stirring motor (7) is connected to an external power source; The barrel (1) is a cylinder with a conical bottom, and the hollow portion inside is a sampling cavity (8) for carrying the water to be tested; The outer wall of the cylinder (1) is provided with a plurality of evenly distributed detection holes (5), and the hole axes of the detection holes (5) are perpendicular to the cylinder (1); It also includes a detection pipe (6), the detection pipe is a hollow elbow, the detection pipe (6) is embedded in the detection hole (5), one end of the detection pipe (6) is located outside the cylinder (1) and the hole axis of the end coincides with the hole axis of the detection hole (5), and the other end of the detection pipe (6) is located inside the cylinder (1) and the hole axis of the end is parallel to the axis of the cylinder (1), so that the detection pipe (6) is connected to the water body inside the cylinder (1); The device comprises four detection pipes (6), four detection holes (5), and four detection probes (10); the detection pipes (6) and the detection holes (5) are matched one by one; and the space where water exists inside the detection pipes (6) is a detection cavity (11); The detection probes (10) are respectively extended into the detection chambers (11) of the detection pipes (6) to detect and analyze the pH, dissolved oxygen, conductivity and turbidity water quality indicators of the water body inside the cylinder (1).

2. A multi-chamber sampling device for water quality detection according to claim 1, characterized in that: The top of the cylinder (1) is provided with a water inlet (4), which is communicated with a sampling cavity (8) inside the cylinder (1).

3. A multi-chamber sampling device for water quality detection according to claim 1, characterized in that: The stirring shaft (2) is coaxial with the cylinder (1), and the plurality of stirring blades (3) are respectively located at the top, middle and bottom of the stirring shaft (2), and the diameter of the stirring blades (3) increases from top to bottom.

4. A multi-chamber sampling device for water quality detection according to claim 1, characterized in that: The gap between the detection pipe (6) and the detection hole (5) is sealed by a rubber ring.

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