Water quality sampling device for water pollution detection

Abstract

This invention relates to the field of water pollution detection technology, and more particularly to a water quality sampling device for water pollution detection, comprising a sampling box, a cold storage chamber, a flip-top cover, a peristaltic pump, a water separator, and sample bottles. A control panel is located on the back of the flip-top cover. The device also includes a fixed sleeve fixedly connected to the end of a lifting connecting pipe away from the sampling box. A connecting pipe is installed inside the lifting connecting pipe, one end of which is connected to the peristaltic pump. This invention designs the angle relationship between multiple adjusting arms and the central fixed sleeve to be dynamically adjustable. When the adjusting arms are extended to be perpendicular to the fixed sleeve, samples at different radial positions on the depth plane can be instantly acquired, effectively overcoming the randomness of single-point sampling. When the adjusting arms are retracted to be parallel to the fixed sleeve, each sampling inlet is distributed in equal-spaced layers on the vertical cross-section. Combined with independent solenoid valve control for each channel, sequential sampling at different depths can be achieved.

Description

Technical Field

[0001] This invention relates to the field of water pollution detection technology, and in particular to a water quality sampling device for water pollution detection. Background Technology

[0002] Water sampling devices are specialized equipment or tool combinations used to collect representative water samples from water bodies (such as rivers, lakes, groundwater, industrial wastewater, etc.). Their core function is to obtain samples that are representative in time and space, without changing or minimizing changes to the original physicochemical properties of the water samples, in accordance with standard specifications, for subsequent laboratory analysis and testing.

[0003] A review of existing water sampling methods revealed a common technical limitation: insufficient spatial representativeness at the same horizontal plane. These devices typically rely on sampling bottles fixed to a structure, only capturing instantaneous water samples at a single point on the bottle opening. This fails to reflect the overall water quality across the sampling plane, resulting in poor spatial representativeness and uniformity of the samples. Furthermore, the sampling bottles, constantly submerged in water, are susceptible to contamination from suspended solids, biofilms, or dissolved substances, affecting sample accuracy. Additionally, the sampling bottles and their supporting structures increase the device's weight, creating a significant load during lifting after sampling and impacting operational efficiency. For example, in China… The pipeline water quality sampling device disclosed in patent CN119086187A achieves automated sampling through mechanical triggering, but its sampling method is still a single-point instantaneous acquisition, which does not break through the limitations of traditional sampling in terms of horizontal spatial distribution. Therefore, it also fails to solve the fundamental problems of sampling representativeness and uniformity. At the same time, it cannot be modified to suit specific scenarios. For example, in a water well, the size of the wellhead makes the detection process quite limited. When using a smaller collector, it is necessary to repeatedly go down into the well to obtain representative data, which is time-consuming and labor-intensive. This problem needs to be addressed.

[0004] Therefore, how to provide a water quality sampling device for water pollution detection is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a water quality sampling device for water pollution detection, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a water quality sampling device for water pollution detection, comprising a sampling box, a cold storage chamber, a flip-top cover, a peristaltic pump, a water separator, and sample bottles, wherein a control panel is provided on the back of the flip-top cover, and further comprising: A fixed sleeve is fixedly connected to the end of the lifting connecting pipe away from the sampling box. A connecting pipe is installed inside the lifting connecting pipe. One end of the connecting pipe is connected to the peristaltic pump, and the other end of the lifting connecting pipe is connected to the fixed sleeve. The lifting connecting pipe is connected to the collection pipe inside the fixed sleeve. The collection tube is fixedly connected to the middle of the fixed sleeve and is used for the unified transportation of the collected samples. The adjusting arm plate is rotatably mounted on the outside of the fixed sleeve and can be adjusted according to different working conditions. When sampling at different depths is required, it can be rotated to be parallel to the fixed sleeve. When sampling at multiple points at the same depth is required, it can be rotated to be perpendicular to the fixed sleeve. A waterproof housing is installed on the outside of the fixed sleeve. A drive device is installed inside the waterproof housing to drive the adjusting arm plate to rotate on the outside of the fixed sleeve. The waterproof housing can provide waterproof protection for the internal drive device. The suction port is located outside the adjusting arm plate and on the side away from the fixed sleeve. The suction port can sample the water in the area. The collection tube is located inside the adjusting arm plate. It is connected to the suction port via a suction tube. A solenoid valve is installed on the outside of the suction tube. The end of the collection tube near the fixed sleeve is connected to the inside of the collection tube. The other end of the bottom of the suction tube is fixedly connected to the suction port. The collection tube can transfer the sample collected by the suction port to the collection tube for unified collection. When the solenoid valve is working, it can clamp the suction tube on the side closest to it and control the water flow rate inside the suction tube.

[0007] Furthermore, it also includes a deformation assembly, which consists of a fixed sleeve, a collecting pipe, a fixed chassis, a positioning rod, a flap, an adjusting arm plate, a waterproof shell, a pneumatic push rod, a lifting ring plate, a connecting cable, and a tension roller; The fixed sleeve is fixedly connected to the end of the lifting connecting pipe away from the peristaltic pump. The collecting pipe is fixedly connected to the top inside the fixed sleeve. The fixed base is fixedly connected to the outside of the fixed sleeve near the bottom. The positioning rod is fixedly connected to the outside of the fixed base. The flip plate is rotatably connected to the middle of the positioning rod. The adjusting arm plate is fixedly connected to the side of the flip plate away from the fixed sleeve. The waterproof shell is fixedly connected to the top outside of the fixed sleeve. The pneumatic push rod is fixedly connected to the bottom inside the waterproof shell. The pneumatic push rod has a telescopic end. The lifting ring plate is fixedly connected to the bottom telescopic end of the pneumatic push rod. The connecting cable is fixedly connected to the bottom of the lifting ring plate. The tension roller is fixedly connected to the top of the fixed base and is located near the positioning rod.

[0008] Furthermore, it also includes a collection component, which consists of a diversion tube, a telescopic tube, a fixed tube, a collection tube, a suction tube, a suction port, and a solenoid valve. The diversion tube is fixedly connected to the bottom of the outer side of the collection tube. The telescopic tube is fixedly connected to the end of the diversion tube away from the collection tube. The fixed tube is fixedly connected to the other end of the telescopic tube. The collection tube is fixedly connected to the end of the fixed tube away from the telescopic tube. The suction tube is fixedly connected to the side of the collection tube away from the fixed sleeve. The suction port is fixedly connected to the outside of the adjusting arm plate and located away from the fixed sleeve. The solenoid valve is fixedly connected to the inside of the adjusting arm plate and located outside the suction tube.

[0009] Furthermore, it also includes auxiliary components, which consist of an air pump, an air supply pipe, a connecting pipe, a protective base, a sampling head, and a solenoid valve. The air pump is fixedly connected to the outside of the sampling box and located below the peristaltic pump. The air supply pipe is fixedly connected to the working end of the air pump. The outside of the air supply pipe is fixedly connected to the lifting connecting pipe. The connecting pipe is fixedly connected to the top of the pneumatic push rod. The protective base is fixedly connected to the bottom of the fixed sleeve. The sampling head is fixedly connected to the bottom of the collection pipe. The second solenoid valve is fixedly connected to the bottom of the protective base and located outside the sampling head, and is used to control the opening and closing of the sampling head.

[0010] Furthermore, a refrigeration chamber is provided on the left side of the sampling box, and multiple sample bottles are placed inside the refrigeration chamber. A flip-top cover is hinged to the top of the sampling box, and a water distributor is fixedly connected to the bottom of the flip-top cover. The bottom of the water distributor has multiple water outlets. A peristaltic pump is fixedly connected to the rear right side of the sampling box. The peristaltic pump is connected to the water distributor through a hose. When the flip-top cover is rotated to cover the top of the sampling box, the multiple water outlets at the bottom of the water distributor are located in the middle of the top of the sample bottles.

[0011] Furthermore, the end of the connecting cable away from the lifting ring plate passes around the bottom of the tension roller and extends to the side of the adjusting arm plate near the fixed sleeve, where it is fixed to the adjusting arm plate. When the connecting cable rises and falls, it can synchronously drive the adjusting arm plate to rotate.

[0012] Furthermore, the telescopic end of the pneumatic push rod passes through the bottom of the waterproof housing and extends to the bottom of the waterproof housing, where it is fixedly connected to the top of the lifting ring plate.

[0013] Furthermore, the end of the diverting pipe away from the collecting pipe passes through the outer wall of the fixed sleeve and extends to the outside of the fixed sleeve to be fixedly connected to the telescopic pipe. The end of the fixed pipe away from the collecting pipe passes through the adjusting arm plate and extends to the outside of the adjusting arm plate to be connected to the telescopic pipe. The outside of the collecting pipe is fixedly connected to the inner wall of the adjusting arm plate.

[0014] Furthermore, there are multiple suction tubes and suction ports, evenly distributed on the lower side of the collection tube, and each individual suction tube is equipped with a solenoid valve on its outer side.

[0015] The beneficial effects of this invention are: 1. This invention allows for the horizontal unfolding of the adjustable arm plate, enabling instantaneous, multi-point sampling at the same depth and different radial positions, and mixing the water samples. This improves the representativeness of a single sample and avoids sampling errors caused by uneven water flow or uneven distribution of pollutants in the well. The size can be adaptively adjusted to suit different wellhead sizes. 2. In this invention, the adjustable boom plate retracts vertically, so that the suction ports at different heights are at different depths. The solenoid valve at each suction port can be controlled individually to achieve precise sampling at a specific depth. This is important for investigating the vertical distribution of pollutants. Traditionally, completing these two sampling tasks requires different equipment or repeated well-running operations. However, this device only requires one well run and can be flexibly switched through remote control, saving operation time and labor costs. 3. In this invention, the angle between multiple adjusting arm plates and the central fixed sleeve is designed to be dynamically adjustable. When the adjusting arm plate is extended to be perpendicular to the fixed sleeve, samples at different radial positions on the depth plane can be acquired instantaneously, effectively overcoming the randomness of single-point sampling. When the adjusting arm plate is retracted to be parallel to the fixed sleeve, each sampling inlet is distributed in layers with equal spacing on the vertical cross-section. Combined with the independent solenoid valve control of each channel, sequential acquisition at different depths can be achieved. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a water quality sampling device for water pollution detection proposed in this invention. Figure 2 This is a schematic diagram of the lifting ring plate structure of a water quality sampling device for water pollution detection proposed in this invention; Figure 3 This is a schematic diagram of the collection tube structure of a water quality sampling device for water pollution detection proposed in this invention; Figure 4 This is a schematic diagram of the explosive structure of the pneumatic push rod of a water quality sampling device for water pollution detection proposed in this invention; Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the cross-sectional structure of the pneumatic push rod of a water quality sampling device for water pollution detection proposed in this invention; Figure 7 for Figure 6 Enlarged structural diagram at point B; Figure 8This is a schematic cross-sectional view of a solenoid valve in a water quality sampling device for water pollution detection proposed in this invention.

[0017] In the diagram: 1. Sampling box; 2. Refrigerated compartment; 3. Flip-top lid; 4. Peristaltic pump; 5. Diverter; 6. Sample bottle; 7. Lifting connecting pipe; 8. Deformation assembly; 801. Fixing sleeve; 802. Collection pipe; 803. Fixing base; 804. Positioning rod; 805. Flip plate; 806. Adjusting arm plate; 807. Waterproof shell; 808. Pneumatic push rod; 809. Lifting ring plate; 810. Connecting cable; 811. Tension roller; 9. Collection assembly; 901. Diverter pipe; 902. Telescopic pipe; 903. Fixing pipe; 904. Collection pipe; 905. Suction pipe; 906. Suction port; 907. Solenoid valve one; 10. Auxiliary assembly; 101. Air pump; 102. Air supply pipe; 103. Connecting pipe; 104. Protective base; 105. Sampling head; 106. Solenoid valve two. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0019] Example 1: Reference Figures 1-8 The present invention provides a technical solution: a water quality sampling device for water pollution detection, comprising a sampling box 1, a cold storage chamber 2, a flip-top cover 3, a peristaltic pump 4, a water separator 5, and sample bottles 6. A control panel is provided on the back of the flip-top cover 3. The device also includes: The fixed sleeve 801 is fixedly connected to the end of the lifting connecting pipe 7 away from the sampling box 1. A connecting pipe is provided inside the lifting connecting pipe 7. One end of the connecting pipe is connected to the peristaltic pump 4, and the other end of the lifting connecting pipe 7 is connected to the fixed sleeve 801. The lifting connecting pipe 7 is connected to the collection pipe 802 inside the fixed sleeve 801. The collection tube 802 is fixedly connected to the middle of the fixed sleeve 801 and is used for the unified transmission of the collected samples; The adjusting arm plate 806 is rotatably set on the outside of the fixed sleeve 801 and can be adjusted according to different working conditions. When sampling at different depths is required, it is rotated to be parallel to the fixed sleeve 801. When sampling at multiple points at the same depth is required, it is rotated to be perpendicular to the fixed sleeve 801. A waterproof housing 807 is provided on the outside of the fixed sleeve 801. A driving device is provided inside the waterproof housing 807 to drive the adjusting arm plate 806 to rotate on the outside of the fixed sleeve 801. The waterproof housing 807 can provide waterproof protection for the internal driving device. The suction port 906 is located outside the adjusting arm plate 806 and on the side away from the fixed sleeve 801. The suction port 906 can sample the water in the area. The collection tube 904 is located inside the adjusting arm plate 806. The collection tube 904 is connected to the suction port 906 via the suction tube 905. A solenoid valve 907 is installed on the outside of the suction tube 905. One end of the collection tube 904 near the fixed sleeve 801 is connected to the inside of the collection tube 802. The other end of the bottom of the suction tube 905 is fixedly connected to the suction port 906. The collection tube 904 can transfer the sample collected by the suction port 906 to the collection tube 802 for unified collection. When working, the solenoid valve 907 can clamp the suction tube 905 on the side closest to it and control the water flow rate inside the suction tube 905.

[0020] Working principle: When sampling is required, the entire fixed sleeve 801 is submerged in water, and its depth is adjusted via the lifting connecting pipe 7. Upon reaching the designated position, the drive device is activated, causing the adjusting arm plate 806 to rotate outside the fixed sleeve 801 until it is perpendicular to the fixed sleeve 801. At this point, multiple adjusting arm plates 806 are arranged in a ring around the outside of the fixed sleeve 801, and multiple suction ports 906 move synchronously. This allows for multi-point instantaneous sampling at the same depth. Subsequently, the peristaltic pump 4 is activated, drawing in nearby liquid through the suction ports 906. The liquid is then collected via the suction pipe 905, collection pipe 904, fixed pipe 903, and telescopic... The sample is introduced into the collection tube 802 through the tube 902 and the diversion tube 901. Then, the sample is sent into the water separator 5 through the collection tube 802 via the lifting connection tube 7 and the peristaltic pump 4. The sample then flows to the designated sample bottle 6 through the outlet on the water separator 5, completing the multi-point collection at the same horizontal depth. When it is necessary to collect samples at different depths, the drive device is controlled to rotate multiple suction ports 906 outside the fixed sleeve 801 until they are parallel to it. At this time, the multiple suction ports 906 are located at different depths. By controlling the solenoid valve 907 of the corresponding depth, a single suction port 906 can be controlled to collect samples simultaneously, flexibly adjusting the depth of the sample to be collected. This allows the device to switch flexibly as needed.

[0021] Example 2: Reference Figures 1-8 Based on Embodiment 1, the present invention provides a technical solution: it also includes a deformation component 8, which is composed of a fixed sleeve 801, a collecting pipe 802, a fixed chassis 803, a positioning rod 804, a flap 805, an adjusting arm plate 806, a waterproof shell 807, a pneumatic push rod 808, a lifting ring plate 809, a connecting cable 810, and a tension roller 811. The fixed sleeve 801 is fixedly connected to the end of the lifting connecting pipe 7 away from the peristaltic pump 4. The collecting pipe 802 is fixedly connected to the top inside the fixed sleeve 801. The fixed base 803 is fixedly connected to the outside of the fixed sleeve 801 near the bottom. The positioning rod 804 is fixedly connected to the outside of the fixed base 803. The flip plate 805 is rotatably connected to the middle of the positioning rod 804. The adjusting arm plate 806 is fixedly connected to the side of the flip plate 805 away from the fixed sleeve 801. The waterproof shell 807 is fixedly connected to the top outside of the fixed sleeve 801. The pneumatic push rod 808 is fixedly connected to the bottom inside the waterproof shell 807. The pneumatic push rod 808 has a telescopic end. The lifting ring plate 809 is fixedly connected to the bottom telescopic end of the pneumatic push rod 808. The connecting cable 810 is fixedly connected to the bottom of the lifting ring plate 809. The tension roller 811 is fixedly connected to the top of the fixed base 803 and is located near the positioning rod 804.

[0022] It also includes a data acquisition component 9, which consists of a diversion pipe 901, a telescopic pipe 902, a fixed pipe 903, a data acquisition pipe 904, a suction pipe 905, a suction port 906, and a solenoid valve 907. The diversion tube 901 is fixedly connected to the bottom outer side of the collection tube 802. The telescopic tube 902 is fixedly connected to the end of the diversion tube 901 away from the collection tube 802. The fixed tube 903 is fixedly connected to the other end of the telescopic tube 902. The collection tube 904 is fixedly connected to the end of the fixed tube 903 away from the telescopic tube 902. The suction tube 905 is fixedly connected to the side of the collection tube 904 away from the fixed sleeve 801. The suction port 906 is fixedly connected to the outside of the adjusting arm plate 806 and is located away from the fixed sleeve 801. The solenoid valve 907 is fixedly connected to the inside of the adjusting arm plate 806 and is located outside the suction tube 905.

[0023] A cold storage compartment 2 is located on the left side of the sampling box 1. Multiple sample bottles 6 are placed inside the cold storage compartment 2. A flip cover 3 is hinged to the top of the sampling box 1. A water separator 5 is fixedly connected to the bottom of the flip cover 3. Multiple water outlets are provided at the bottom of the water separator 5. A peristaltic pump 4 is fixedly connected to the rear right side of the sampling box 1. The peristaltic pump 4 is connected to the water separator 5 through a hose. When the flip cover 3 is rotated to cover the top of the sampling box 1, the multiple water outlets at the bottom of the water separator 5 are located in the middle of the top of the sample bottles 6.

[0024] The end of the connecting cable 810 away from the lifting ring plate 809 passes around the bottom of the tension roller 811 and extends to the side of the adjusting arm plate 806 near the fixed sleeve 801 and is fixed to the adjusting arm plate 806. When the connecting cable 810 rises and falls, it can synchronously drive the adjusting arm plate 806 to rotate.

[0025] The telescopic end of the pneumatic push rod 808 passes through the bottom of the waterproof shell 807 and extends to the bottom of the waterproof shell 807, where it is fixedly connected to the top of the lifting ring plate 809.

[0026] The end of the diverter tube 901 away from the collection tube 802 passes through the outer wall of the fixed sleeve 801 and extends to the outside of the fixed sleeve 801, where it is fixedly connected to the telescopic tube 902. The end of the fixed tube 903 away from the collection tube 904 passes through the adjusting arm plate 806 and extends to the outside of the adjusting arm plate 806, where it is connected to the telescopic tube 902. The outside of the collection tube 904 is fixedly connected to the inner wall of the adjusting arm plate 806.

[0027] There are multiple suction tubes 905 and suction ports 906, which are evenly distributed on the lower side of the collection tube 904. Each individual suction tube 905 is equipped with a solenoid valve 907 on its outer side.

[0028] Working principle: When multiple points need to be sampled at the same horizontal depth to ensure sample uniformity, the pneumatic push rod 808 inside the waterproof shell 807 is activated. The pneumatic push rod 808 controls the lifting ring plate 809 to move downward. When the lifting ring plate 809 moves downward, the connecting cable 810 at its bottom cannot effectively provide sufficient tension to the adjusting arm plate 806, causing the adjusting arm plate 806 to rotate within the positioning rod 804 via the flip plate 805, and rotate the adjusting arm plate 806 to a state perpendicular to the fixed sleeve 801. At this time, multiple adjusting arm plates 806 are distributed in a ring at the same horizontal depth outside the fixed sleeve 801, expanding the sampling range at the same depth and making the collected samples more representative. This is useful when sampling at different depths is required. During collection, the pneumatic push rod 808 drives the lifting ring plate 809 to rise, which in turn pulls the connecting cable 810 at the bottom. This causes the adjusting arm plate 806 at the other end of the connecting cable 810 to be stressed, and the adjusting arm plate 806 and the flip plate 805 to rotate around the fixed sleeve 801 to a horizontal position. At this time, multiple suction ports 906 are located at different depths. When it is necessary to test samples at different depths, the solenoid valve 907 is controlled to work except for the sample at the required depth, so that the suction tube 905 cannot suck in liquid, thus achieving sample collection at a single depth. Since all samples are collected into the sample bottle 6, the overall weight of the fixed sleeve 801 is not increased, making the device easy and labor-saving to operate.

[0029] Example 3: Reference Figure 1 and Figure 7 Based on Embodiment 2, the present invention provides a technical solution that further includes an auxiliary component 10, which consists of an air pump 101, an air supply pipe 102, a connecting pipe 103, a protective base 104, a sampling head 105, and a second solenoid valve 106. Air pump 101 is fixedly connected to the outside of sampling box 1 and located below peristaltic pump 4. Air supply pipe 102 is fixedly connected to the working end of air pump 101. The outside of air supply pipe 102 is fixedly connected to lifting connecting pipe 7. Connecting pipe 103 is fixedly connected to the top of pneumatic push rod 808. Protective base 104 is fixedly connected to the bottom of fixed sleeve 801. Sampling head 105 is fixedly connected to the bottom of collection pipe 802. Solenoid valve 106 is fixedly connected to the bottom of the protective base 104 and located outside the sampling head 105, used to control the opening and closing of sampling head 105.

[0030] A diverter sleeve is fixedly connected to the top of the fixed sleeve 801. The diverter sleeve is connected to the air supply pipe 102. The end of the connecting pipe 103 away from the pneumatic push rod 808 passes through the top of the waterproof shell 807 and connects to the diverter sleeve through the outer wall of the fixed sleeve 801. The connecting pipe 103 is connected to the inside of the diverter sleeve. A solenoid valve three is provided on the outside of the connecting pipe 103. By controlling the operation of the solenoid valve three, the pneumatic push rod 808 can be driven.

[0031] Working principle: When the pneumatic push rod 808 is needed, the air pump 101 is controlled to work. At the same time, by controlling the solenoid valve three on the outside of the pneumatic push rod 808, multiple pneumatic push rods 808 can be controlled to work simultaneously. When only one pneumatic push rod 808 needs to work, the solenoid valve three is controlled so that it can independently control the movement of the adjusting arm plate 806 during use, so that the device can make adaptive adjustments for different wellhead conditions.

[0032] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A water quality sampling device for water pollution detection, comprising a sampling box (1), a cold storage chamber (2), a flip-top lid (3), a peristaltic pump (4), a water separator (5), and sample bottles (6), characterized in that: The flip cover (3) has a control screen on its back and also includes: The fixed sleeve (801) is fixedly connected to the end of the lifting connecting pipe (7) away from the sampling box (1); The collecting tube (802) is fixedly connected to the middle part of the fixed sleeve (801); Adjusting arm plate (806) is rotatably mounted on the outside of fixed sleeve (801); A waterproof housing (807) is provided on the outside of the fixed sleeve (801). A driving device is provided inside the waterproof housing (807) for driving the adjusting arm plate (806) to rotate on the outside of the fixed sleeve (801). The suction port (906) is located outside the adjusting arm plate (806) and on the side away from the fixed sleeve (801); The collection tube (904) is located inside the adjusting arm plate (806). The collection tube (904) is connected to the suction port (906) through the suction tube (905). A solenoid valve (907) is provided on the outside of the suction tube (905). The end of the collection tube (904) near the fixed sleeve (801) is connected to the inside of the collection tube (802).

2. The water quality sampling device for water pollution detection according to claim 1, characterized in that: It also includes a deformation assembly (8), which consists of a fixed sleeve (801), a collecting pipe (802), a fixed chassis (803), a positioning rod (804), a flap (805), an adjusting arm plate (806), a waterproof shell (807), a pneumatic push rod (808), a lifting ring plate (809), a connecting cable (810), and a tension roller (811); The fixed sleeve (801) is fixedly connected to the end of the lifting connecting pipe (7) away from the peristaltic pump (4). The collecting pipe (802) is fixedly connected to the top of the fixed sleeve (801). The fixed base (803) is fixedly connected to the outside of the fixed sleeve (801) near the bottom. The positioning rod (804) is fixedly connected to the outside of the fixed base (803). The flap (805) is rotatably connected to the middle of the positioning rod (804). The adjusting arm plate (806) is fixedly connected to the flap (805) away from the fixed sleeve (801). 1) On one side, the waterproof shell (807) is fixedly connected to the top of the outer side of the fixed sleeve (801), the pneumatic push rod (808) is fixedly connected to the bottom of the waterproof shell (807), the pneumatic push rod (808) has a telescopic end, the lifting ring plate (809) is fixedly connected to the bottom telescopic end of the pneumatic push rod (808), the connecting cable (810) is fixedly connected to the bottom of the lifting ring plate (809), and the tension roller (811) is fixedly connected to the top of the fixed chassis (803) and is located on the side close to the positioning rod (804).

3. A water quality sampling device for water pollution detection according to claim 2, characterized in that: It also includes a collection component (9), which consists of a diversion pipe (901), a telescopic pipe (902), a fixed pipe (903), a collection pipe (904), a suction pipe (905), a suction port (906), and a solenoid valve (907); The diversion tube (901) is fixedly connected to the bottom of the outer side of the collection tube (802). The telescopic tube (902) is fixedly connected to the end of the diversion tube (901) away from the collection tube (802). The fixed tube (903) is fixedly connected to the other end of the telescopic tube (902). The collection tube (904) is fixedly connected to the end of the fixed tube (903) away from the telescopic tube (902). The suction tube (905) is fixedly connected to the side of the collection tube (904) away from the fixed sleeve (801). The suction port (906) is fixedly connected to the outside of the adjusting arm plate (806) and located away from the fixed sleeve (801). The solenoid valve (907) is fixedly connected to the inside of the adjusting arm plate (806) and located outside the suction tube (905).

4. A water quality sampling device for water pollution detection according to claim 3, characterized in that: It also includes an auxiliary component (10), which consists of an air pump (101), an air supply pipe (102), a connecting pipe (103), a protective base (104), a sampling head (105), and a second solenoid valve (106); The air pump (101) is fixedly connected to the outside of the sampling box (1) and located below the peristaltic pump (4). The air supply pipe (102) is fixedly connected to the working end of the air pump (101). The outside of the air supply pipe (102) is fixedly connected to the lifting connecting pipe (7). The connecting pipe (103) is fixedly connected to the top of the pneumatic push rod (808). The protective base (104) is fixedly connected to the bottom of the fixed sleeve (801). The sampling head (105) is fixedly connected to the bottom of the collection pipe (802). The second solenoid valve (106) is fixedly connected to the bottom of the protective base (104) and located outside the sampling head (105), and is used to control the opening and closing of the sampling head (105).

5. A water quality sampling device for water pollution detection according to claim 4, characterized in that: The sampling box (1) has a cold storage chamber (2) on the left side. There are multiple sample bottles (6), and all sample bottles (6) are placed inside the cold storage chamber (2). The top of the sampling box (1) is hinged with a flip cover (3). The bottom of the flip cover (3) is fixedly connected to a water separator (5). The bottom of the water separator (5) is provided with multiple water outlets. The right rear end of the sampling box (1) is fixedly connected to a peristaltic pump (4). The peristaltic pump (4) is connected to the water separator (5) through a hose. When the flip cover (3) is rotated to cover the top of the sampling box (1), the multiple water outlets at the bottom of the water separator (5) are located in the middle of the top of the sample bottle (6).

6. A water quality sampling device for water pollution detection according to claim 5, characterized in that: The end of the connecting cable (810) away from the lifting ring plate (809) passes around the bottom of the tension roller (811) and extends to the side of the adjusting arm plate (806) near the fixed sleeve (801) and is fixed to the adjusting arm plate (806). When the connecting cable (810) rises and falls, it can synchronously drive the adjusting arm plate (806) to rotate.

7. A water quality sampling device for water pollution detection according to claim 6, characterized in that: The telescopic end of the pneumatic push rod (808) passes through the bottom of the waterproof shell (807) and extends to the bottom of the waterproof shell (807) and is fixedly connected to the top of the lifting ring plate (809).

8. A water quality sampling device for water pollution detection according to claim 7, characterized in that: The end of the diversion pipe (901) away from the collection pipe (802) passes through the outer wall of the fixed sleeve (801) and extends to the outside of the fixed sleeve (801) to be fixedly connected to the telescopic pipe (902). The end of the fixed pipe (903) away from the collection pipe (904) passes through the adjusting arm plate (806) and extends to the outside of the adjusting arm plate (806) to be connected to the telescopic pipe (902). The outside of the collection pipe (904) is fixedly connected to the inner wall of the adjusting arm plate (806).

9. A water quality sampling device for water pollution detection according to claim 8, characterized in that: The number of suction tubes (905) and suction ports (906) is multiple, and they are evenly distributed on the lower side of the collection tube (904). Each individual suction tube (905) is equipped with a solenoid valve (907) on its outer side.

10. A water quality sampling device for water pollution detection according to claim 9, characterized in that: A diverter sleeve is fixedly connected to the top of the fixed sleeve (801). The diverter sleeve is connected to the air supply pipe (102). The end of the connecting pipe (103) away from the pneumatic push rod (808) passes through the top of the waterproof shell (807) and is connected to the diverter sleeve through the outer wall of the fixed sleeve (801). The connecting pipe (103) is connected to the inside of the diverter sleeve. A solenoid valve three is provided on the outside of the connecting pipe (103). By controlling the operation of the solenoid valve three, the pneumatic push rod (808) can be driven.

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