Water quality detection device and detection method

Abstract

The present invention relates to the technical field of water quality detection devices, and discloses a water quality detection device and detection method, comprising a support frame, the outer wall of the support frame is fixedly equipped with a mounting frame, the inner cavity of the mounting frame is rotatably connected to a driving sprocket, and the inner cavity of the mounting frame is rotatably connected to a driven sprocket. The water quality detection device and detection method, through a pressure regulating component set in the inner cavity of the mounting box, changes the stroke of the pressure spring according to the sampling depth, so that the pressure of the pressure spring matches the water pressure. When the mounting box moves downward to the corresponding depth, the pressure plate will move upward along the outer wall of the support rod, so that water enters the water inlet cylinder and the water pipe, and enters the collection cylinder along the connecting pipe. The device can adjust the stroke of the pressure spring according to the different depths of water, so as to change the pressure acting on the pressure plate, so that the device can sample water at different depths.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality detection devices, and in particular to a water quality detection device and a detection method. Background Art

[0002] With the development of technology and the increasing human activities, the water environment has also deteriorated, and more and more pollutants have flowed into lakes and oceans. Therefore, humans have also paid more attention to water bodies. Water quality detectors are needed for water quality testing. Strengthening water quality testing is an important part of water environment management. In the process of water quality testing, water quality testing devices are needed to sample water.

[0003] When using traditional water quality detection devices, the detection device is often set up on the water surface to sample and test the water on the water surface. However, the traditional sampling method can only sample the water on the water surface and cannot penetrate into the water to sample and test the water flow below. As a result, there are certain limitations in water sampling, which affects the accurate testing of water quality and the subsequent test results. Summary of the Invention

[0004] The present invention provides a water quality detection device and a detection method, which solve the problems raised by the above background technology.

[0005] The present invention provides the following technical solution: a water quality detection device, comprising a support frame, the outer wall of the support frame is fixedly equipped with a mounting frame, the inner cavity of the mounting frame is rotatably connected to a drive sprocket, the inner cavity of the mounting frame is rotatably connected to a driven sprocket, the outer wall of the mounting frame is rollingly connected to a chain plate, the outer wall of the chain plate is fixedly equipped with a mounting box, the inner cavity of the mounting box is provided with a pressure regulating assembly, the inner cavity of the mounting box is provided with a sampling assembly, the bottom of the inner cavity of the mounting box is fixedly equipped with a water inlet cylinder, the inner cavity of the mounting box is fixedly equipped with a partition, the outer wall of the drive sprocket is fixedly equipped with a No. 1 driven gear, the outer wall of the mounting frame is fixedly equipped with a drive motor, the power output shaft of the drive motor is fixedly equipped with a No. 1 drive gear, and the outer wall of the mounting frame is fixedly equipped with a central controller.

[0006] As an optimal technical solution of the present invention, the pressure regulating assembly includes a support plate, the outer wall of the support plate is fixedly equipped with a support rod, the outer wall of the support rod is fixedly equipped with a limiting ring, the bottom of the support plate is fixedly equipped with a No. 1 gear plate, the bottom of the support plate is fixedly equipped with a No. 2 gear plate, the outer wall of the No. 1 gear plate is movably sleeved on the outer wall of the support rod, the outer wall of the support rod is movably sleeved on the outer wall of the support rod, the pressure plate of the outer wall of the support rod is movably sleeved on the

[0007] As a preferred technical solution of the present invention: the two ends of the outer wall of the pressure spring are in contact with the top of the pressure plate and the bottom of the movable plate respectively, and the pressure spring is made of high carbon steel, the outer wall of the No. 1 worm and the outer wall of the worm wheel are meshed with each other, the outer wall of the No. 2 driven gear and the outer wall of the No. 3 driven gear are meshed with each other, and the outer wall diameter of the No. 2 driven gear is smaller than the outer wall diameter of the No. 3 driven gear.

[0008] As a preferred technical solution of the present invention: the outer wall of the No. 3 driven gear is meshed with the outer wall of the No. 2 gear plate, the outer walls of the No. 1 gear plate and the No. 2 gear plate respectively pass through the inner cavity of the movable plate, and the outer wall diameter of the limiting ring is larger than the outer wall diameter of the support rod.

[0009] As a preferred technical solution of the present invention: the sampling assembly includes a water pipe, a connecting pipe is installed on the top of the water pipe, the inner cavity of the connecting pipe is provided with a cylindrical groove, the inner wall of the cylindrical groove is fixedly equipped with an auxiliary rod, the outer wall of the auxiliary rod is movably sleeved with a support spring, the outer wall of the auxiliary rod is movably sleeved with a floating rod, the outer wall of the floating rod is fixedly equipped with a sealing plate, the top of the connecting pipe is fixedly equipped with a collecting cylinder, and the top of the installation box is threadedly connected to a top cover.

[0010] As an optimal technical solution of the present invention: the outer wall of the water pipe away from one end of the connecting pipe is connected to the outer wall of the water inlet cylinder, and the inner cavity of the water pipe is connected to the inner cavity of the water inlet cylinder, and the inner wall diameter of the cylindrical groove is larger than the outer wall diameter of the sealing plate.

[0011] As a preferred technical solution of the present invention: both ends of the outer wall of the support spring are respectively connected to the inner wall of the cylindrical groove and the outer wall of the floating rod, and the support spring is made of high carbon steel.

[0012] As a preferred technical solution of the present invention: the outer wall diameter of the pressure plate is equal to the inner wall diameter of the water inlet cylinder, the outer wall of the No. 1 driving gear and the outer wall of the No. 1 driven gear are meshed with each other, and the outer wall diameter of the No. 1 driving gear is smaller than the outer wall diameter of the No. 1 driven gear, and the central controller is electrically connected to the driving motor and the dual-axis motor respectively.

[0013] As a preferred technical solution of the present invention: the inner cavity of the connecting pipe is communicated with the inner cavity of the collecting cylinder, there are two auxiliary rods, and the two auxiliary rods are respectively installed at both ends of the inner wall of the cylindrical groove.

[0014] A detection method for a water quality detection device comprises the following steps:

[0015] S1: When sampling and testing of water in a river is required, the support frame is installed in the river. The central controller calculates the water pressure at the depth required for sampling and measures the pressure at this depth. The stroke of the pressure spring is then adjusted according to the calculated pressure.

[0016] S2: The dual-axis motor is activated through the central controller. Under the action of the dual-axis motor, the rotation of the No. 1 worm and the No. 2 worm is respectively driven by the No. 1 worm to drive the worm wheel, so that the No. 2 driven gear drives the No. 3 driven gear to rotate. When the No. 3 driven gear rotates, it drives the movable plate to move along the outer wall of the No. 2 gear plate. When the movable plate moves along the outer wall of the No. 2 gear plate, the stroke of the pressure spring is adjusted. According to the spring coefficient of the pressure spring, the pressure applied by the pressure spring on the top of the pressure plate is close to the water pressure, and the elastic force of the pressure spring is slightly less than the water pressure at the specified depth.

[0017] S3: The central controller then starts the drive motor, which causes the No. 1 driven gear and the drive sprocket to rotate synchronously, driving the chain plate to rotate on the outer wall of the mounting frame, thereby driving the mounting box into the water. When the mounting box moves down to the specified depth, the water pressure will act on the bottom of the pressure plate. When the mounting box continues to move down, the water pressure will exceed the pressure of the pressure spring, causing the pressure plate to move upward along the outer wall of the support rod. When the outer wall of the pressure plate passes over the water pipe, water will enter the inner cavity of the water pipe;

[0018] S4: After the water flows into the inner cavity of the water pipe, it pushes the blocking plate upward, causing the floating rod to move upward along the outer wall of the auxiliary rod, and the blocking plate to move to the position of the cylindrical groove. At this time, the water can flow into the inner cavity of the collection tube. After a period of time, the water at the specified depth can be collected. After the water enters the inner cavity of the collection tube, it cannot escape downward. After the collection is completed, the installation box will move upward. At this time, the pressure of the pressure spring is greater than the water pressure, and the inner cavity of the water inlet tube is blocked;

[0019] S5: At this time, the blocking plate will stay in the inner cavity of the connecting pipe. When the top cover is removed from the top of the installation box and the collecting tube is pulled upward, the bottom of the connecting pipe will separate from the top of the water pipe. Then, the blocking plate will move downward quickly under the action of the supporting spring to block the inner cavity of the connecting pipe and prevent the water in the inner cavity of the collecting tube from being released outward.

[0020] The present invention has the following beneficial effects:

[0021] 1. The water quality detection device and detection method, through the pressure regulating assembly provided in the inner cavity of the installation box, changes the stroke of the pressure spring according to the sampling depth, so that the pressure of the pressure spring matches the water pressure. When the installation box moves downward to the corresponding depth, the pressure plate will move upward along the outer wall of the support rod, so that water enters the water inlet cylinder and the water pipe, and enters the collection cylinder along the connecting pipe. The equipment can adjust the stroke of the pressure spring according to the different depths of water to change the pressure acting on the pressure plate, so that the equipment can sample water at different depths.

[0022] 2. The water quality detection device and detection method, through a connecting tube provided at the bottom of the collecting tube, an auxiliary rod provided in the inner cavity of the connecting tube, and a support spring provided on the outer wall of the auxiliary rod, can control the position of the blocking plate under the action of the support spring, so that water cannot escape outward after entering the inner cavity of the collecting tube. When the collecting tube is moved upward, the blocking plate can block the inner cavity of the connecting tube, so that the sampled water can stay in the inner cavity of the collecting tube, thereby better performing sampling and detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the mounting frame structure of the present invention;

[0025] Figure 3 Schematic diagram of the chain plate structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the installation box structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the installation box of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the pressure spring of the present invention;

[0029] Figure 7 This is a schematic diagram of the support structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the water pipe structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the connecting pipe structure of the present invention.

[0032] Figure: 1. Support frame; 2. Mounting frame; 3. Drive sprocket; 4. Driven sprocket; 5. Chain plate; 6. Mounting box; 7. Pressure regulating assembly; 8. Sampling assembly; 9. Water inlet cylinder; 10. Partition; 11. Driven gear No. 1; 12. Drive gear No. 1; 13. Drive motor; 14. Central controller.

[0033] 701, support plate; 702, support rod; 703, limiting ring; 704, gear plate No. 1; 705, gear plate No. 2; 706, movable plate; 707, pressure spring; 708, pressure plate; 709, support base; 7010, dual-axis motor; 7011, worm gear No. 1; 7012, worm gear No. 2; 7013, auxiliary frame; 7014, driven gear No. 2; 7015, worm wheel; 7016, driven gear No. 3;

[0034] 801. Water pipe; 802. Connecting pipe; 803. Cylindrical groove; 804. Auxiliary rod; 805. Support spring; 806. Floating rod; 807. Sealing plate; 808. Collecting cylinder; 809. Top cover. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figures 1-9 A water quality detection device includes a support frame 1, the outer wall of the support frame 1 is fixedly equipped with a mounting frame 2, the inner cavity of the mounting frame 2 is rotatably connected to the driving sprocket 3, the inner cavity of the mounting frame 2 is rotatably connected to the driven sprocket 4, the outer wall of the mounting frame 2 is rollingly connected to the chain plate 5, the outer wall of the chain plate 5 is fixedly equipped with a mounting box 6, the inner cavity of the mounting box 6 is provided with a pressure regulating component 7, the inner cavity of the mounting box 6 is provided with a sampling component 8, the bottom of the inner cavity of the mounting box 6 is fixedly equipped with a water inlet cylinder 9, the inner cavity of the mounting box 6 is fixedly equipped with a partition 10, the outer wall of the driving sprocket 3 is fixedly equipped with a No. 1 driven gear 11, the outer wall of the mounting frame 2 is fixedly equipped with a driving motor 13, the power output shaft of the driving motor 13 is fixedly equipped with a No. 1 driving gear 12, and the outer wall of the mounting frame 2 is fixedly equipped with a central controller 14.

[0037] In the above structure, through the mounting frame 2 arranged on the outer wall of the support frame 1, and the driving sprocket 3 and the driven sprocket 4 respectively arranged in the inner cavity of the mounting frame 2, the No. 1 driven gear 11 can be driven under the action of the driving motor 13 and the No. 1 driving gear 12, so that the driving sprocket 3 rotates in the inner cavity of the mounting frame 2, thereby realizing the driving of the chain plate 5 during the rotation of the driving sprocket 3, so that the chain plate 5 rotates on the outer wall of the mounting frame 2.

[0038] In a preferred embodiment, the pressure regulating assembly 7 includes a support plate 701, the outer wall of the support plate 701 is fixedly equipped with a support rod 702, the outer wall of the support rod 702 is fixedly equipped with a limit ring 703, the bottom of the support plate 701 is fixedly equipped with a No. 1 tooth plate 704, the bottom of the support plate 701 is fixedly equipped with a No. 2 tooth plate 705, the outer wall of the No. 1 tooth plate 704 is movably sleeved with a movable plate 706, the outer wall of the support rod 702 is movably sleeved with a pressure spring 707, the outer wall of the support rod 702 is movably sleeved with a pressure plate 708, and the top of the movable plate 706 is fixedly mounted. A support base 709 is fixedly installed on the top of the support base 709, a dual-axis motor 7010 is fixedly installed on the power output shaft of the dual-axis motor 7010 is fixedly installed on the No. 1 worm 7011, and a No. 2 worm 7012 is fixedly installed on the power output shaft of the dual-axis motor 7010. An auxiliary frame 7013 is fixedly installed on the top of the movable plate 706, and the inner cavity of the auxiliary frame 7013 is rotatably connected to the No. 2 driven gear 7014. The outer wall of the No. 2 driven gear 7014 is fixedly installed with a worm gear 7015, and the top of the movable plate 706 is rotatably connected to the No. 3 driven gear 7016.

[0039] In the above structure, by setting the support rod 702 in the inner cavity of the installation box 6 and the support rod 702 set on the outer wall of the support rod 702, by adjusting the position of the movable plate 706, the movable plate 706 moves up and down along the outer walls of the No. 1 tooth plate 704 and the No. 2 tooth plate 705, thereby realizing compression and adjustment of the pressure spring 707, thereby realizing adjustment of the stroke of the pressure spring 707, so as to change the pressure acting on the outer wall of the pressure plate 708.

[0040] In a preferred embodiment: the two ends of the outer wall of the pressure spring 707 are in contact with the top of the pressure plate 708 and the bottom of the movable plate 706 respectively, and the pressure spring 707 is made of high carbon steel, the outer wall of the No. 1 worm 7011 and the outer wall of the worm wheel 7015 are meshed with each other, the outer wall of the No. 2 driven gear 7014 and the outer wall of the No. 3 driven gear 7016 are meshed with each other, and the outer wall diameter of the No. 2 driven gear 7014 is smaller than the outer wall diameter of the No. 3 driven gear 7016.

[0041] The second driven gear 7014 is driven by the second driven gear 7016, and the third driven gear 7016 is driven to rotate. Then, the third driven gear 7016 drives the movable plate 706, so that the movable plate 706 can move up and down along the outer walls of the first and second gear plates 704 and 705. Under the self-locking action of the worm wheel 7015 and the first worm 7011, when the movable plate 706 is fixed to the specified position, the third driven gear 7016 cannot rotate, and thus cannot drive the second driven gear 7014 and the worm wheel 7015 in reverse.

[0042] In a preferred embodiment: the outer wall of the No. 3 driven gear 7016 is meshed with the outer wall of the No. 2 gear plate 705, the outer walls of the No. 1 gear plate 704 and the No. 2 gear plate 705 respectively pass through the inner cavity of the movable plate 706, and the outer wall diameter of the limiting ring 703 is larger than the outer wall diameter of the support rod 702.

[0043] In the above structure, by meshing the outer wall of the No. 3 driven gear 7016 with the outer wall of the No. 2 gear plate 705, when the No. 3 driven gear 7016 is driven under the action of the No. 1 worm gear 7011, the movable plate 706 can move up and down along the outer walls of the No. 2 gear plate 705 and the No. 1 gear plate 704, thereby adjusting the position of the movable plate 706 to facilitate adjusting the stroke of the pressure spring 707, and through the limiting ring 703 set at the bottom of the support rod 702, the pressure plate 708 can be restricted under the action of the limiting ring 703 to prevent the pressure plate 708 from detaching from the outer wall of the support rod 702.

[0044] In a preferred embodiment: the sampling component 8 includes a water pipe 801, a connecting pipe 802 is installed on the top of the water pipe 801, the inner cavity of the connecting pipe 802 is provided with a cylindrical groove 803, the inner wall of the cylindrical groove 803 is fixedly equipped with an auxiliary rod 804, the outer wall of the auxiliary rod 804 is movably connected to a support spring 805, the outer wall of the auxiliary rod 804 is movably connected to a floating rod 806, the outer wall of the floating rod 806 is fixedly equipped with a sealing plate 807, the top of the connecting pipe 802 is fixedly equipped with a collecting tube 808, and the top of the installation box 6 is threadedly connected to a top cover 809.

[0045] In the above structure, through the water pipe 801 and the connecting pipe 802 arranged in the inner cavity of the installation box 6, when the installation box 6 moves underwater, when the installation box 6 moves to the specified water depth, the pressure plate 708 will be driven to move upward along the outer wall of the support rod 702 under the action of water pressure. When the outer wall of the pressure plate 708 passes over the inner wall of the water pipe 801, the water will pass through the inner cavity of the water inlet cylinder 9 into the inner cavity of the water pipe 801, and pass through the inner cavity of the connecting pipe 802 into the collecting cylinder 808, thereby realizing the collection of water.

[0046] In a preferred embodiment: the outer wall of the water pipe 801 away from the connecting pipe 802 is connected to the outer wall of the water inlet cylinder 9, and the inner cavity of the water pipe 801 is connected to the inner cavity of the water inlet cylinder 9, and the inner wall diameter of the cylindrical groove 803 is larger than the outer wall diameter of the sealing plate 807.

[0047] In the above structure, through the collecting tube 808 set in the inner cavity of the installation box 6, after the water flows into the inner cavity of the water inlet tube 9, it will pass through the water guide pipe 801 and enter the inner cavity of the collecting tube 808, thereby completing the sampling of water under the action of the collecting tube 808, and under the obstruction of the sealing plate 807, the water cannot escape outward after entering the inner cavity of the collecting tube 808.

[0048] In a preferred embodiment, two ends of the outer wall of the support spring 805 are respectively connected to the inner wall of the cylindrical groove 803 and the outer wall of the floating rod 806, and the support spring 805 is made of high carbon steel.

[0049] In the above structure, by providing a support spring 805 on the outer wall of the auxiliary rod 804, the outer wall of the blocking plate 807 is supported by the support spring 805 so as to be located in the inner cavity of the connecting tube 802, thereby blocking the inner cavity of the connecting tube 802. When the water flows into the inner cavity of the water pipe 801, it will move upward along the water pipe 801, thereby lifting the blocking plate 807 upward. When the blocking plate 807 moves to the inner wall of the cylindrical groove 803, the water will pass through the gap between the blocking plate 807 and the cylindrical groove 803 and enter the inner cavity of the collecting tube 808, thereby completing the collection of the water sample.

[0050] In a preferred embodiment: the outer wall diameter of the pressure plate 708 is equal to the inner wall diameter of the water inlet cylinder 9, the outer wall of the No. 1 driving gear 12 is meshed with the outer wall of the No. 1 driven gear 11, and the outer wall diameter of the No. 1 driving gear 12 is smaller than the outer wall diameter of the No. 1 driven gear 11, and the central controller 14 is electrically connected to the driving motor 13 and the dual-axis motor 7010 respectively.

[0051] In the above structure, through the water inlet cylinder 9 set at the bottom of the inner cavity of the installation box 6, external water can be introduced into the inner cavity of the water inlet cylinder 9 under the action of the water inlet cylinder 9, thereby realizing the collection of water flow, and through the drive motor 13 set on the outer wall of the mounting frame 2, the No. 1 driving gear 12 is driven under the action of the drive motor 13, so that the No. 1 driving gear 12 drives the rotation of the No. 1 driven gear 11, and then the chain plate 5 can rotate under the action of the No. 1 driven gear 11 and the drive sprocket 3.

[0052] In a preferred embodiment, the inner cavity of the connecting tube 802 is communicated with the inner cavity of the collecting tube 808 , there are two auxiliary rods 804 , and the two auxiliary rods 804 are respectively installed at both ends of the inner wall of the cylindrical groove 803 .

[0053] In the above structure, by means of the auxiliary rods 804 respectively arranged on both sides of the inner wall of the cylindrical groove 803 and the support springs 805 arranged on the outer wall of the auxiliary rods 804, the floating rod 806 and the sealing plate 807 can be pulled under the action of the support springs 805, and after the water collection is completed, the water in the inner cavity of the collection tube 808 can be prevented from escaping downward.

[0054] A detection method for a water quality detection device comprises the following steps:

[0055] S1: When sampling and testing of water in a river is required, the support frame 1 is installed in the river. The central controller 14 calculates the pressure of the water at the depth required for sampling and measures the pressure at this depth. The stroke of the pressure spring 707 is then adjusted according to the measured pressure.

[0056] S2: The central controller 14 is used to start the dual-axis motor 7010. Under the action of the dual-axis motor 7010, the first worm 7011 and the second worm 7012 are driven to rotate respectively. Under the action of the first worm 7011, the worm wheel 7015 is driven, so that the second driven gear 7014 drives the third driven gear 7016 to rotate. When the third driven gear 7016 rotates, it drives the movable plate 706 to move along the outer wall of the second gear plate 705. When the movable plate 706 moves along the outer wall of the second gear plate 705, the stroke of the pressure spring 707 is adjusted. According to the spring coefficient of the pressure spring 707, the pressure applied by the pressure spring 707 to the top of the pressure plate 708 is close to the water pressure, and the elastic force of the pressure spring 707 is slightly smaller than the water pressure at the specified depth.

[0057] S3: The central controller 14 then starts the drive motor 13. Driven by the drive motor 13, the No. 1 driven gear 11 and the drive sprocket 3 rotate synchronously, driving the chain plate 5 to rotate on the outer wall of the mounting frame 2, thereby driving the mounting box 6 into the water. When the mounting box 6 moves downward to a specified depth, the water pressure acts on the bottom of the pressure plate 708. When the mounting box 6 continues to move downward, the water pressure exceeds the pressure of the pressure spring 707, causing the pressure plate 708 to move upward along the outer wall of the support rod 702. When the outer wall of the pressure plate 708 passes over the water pipe 801, water enters the inner cavity of the water pipe 801.

[0058] S4: After the water flows into the inner cavity of the water guide pipe 801, it pushes the blocking plate 807 upward, causing the floating rod 806 to move upward along the outer wall of the auxiliary rod 804, so that the blocking plate 807 moves to the position of the cylindrical groove 803. At this time, the water flows into the inner cavity of the collection cylinder 808. After a period of time, the water at a specified depth is collected. After the water enters the inner cavity of the collection cylinder 808, it cannot escape downward. After the collection is completed, the installation box 6 moves upward. At this time, the pressure of the pressure spring 707 is greater than the water pressure, and the inner cavity of the water inlet cylinder 9 is blocked.

[0059] S5: At this time, the blocking plate 807 will stay in the inner cavity of the connecting pipe 802. When the top cover 809 is removed from the top of the installation box 6 and the collecting tube 808 is pulled upward, the bottom of the connecting pipe 802 will be separated from the top of the water pipe 801. Then the blocking plate 807 will move downward quickly under the action of the support spring 805 to block the inner cavity of the connecting pipe 802, preventing the water in the inner cavity of the collecting tube 808 from being released outward.

[0060] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0061] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A water quality detection device, comprising a support frame (1), characterized in that: The outer wall of the support frame (1) is fixedly equipped with a mounting frame (2), the inner cavity of the mounting frame (2) is rotatably connected to a driving sprocket (3), the inner cavity of the mounting frame (2) is rotatably connected to a driven sprocket (4), the outer wall of the mounting frame (2) is rollingly connected to a chain plate (5), the outer wall of the chain plate (5) is fixedly equipped with a mounting box (6), the inner cavity of the mounting box (6) is provided with a pressure regulating component (7), the inner cavity of the mounting box (6) is provided with a sampling component (8), the bottom of the inner cavity of the mounting box (6) is fixedly equipped with a water inlet cylinder (9), the inner cavity of the mounting box (6) is fixedly equipped with a partition (10), the outer wall of the driving sprocket (3) is fixedly equipped with a No. 1 driven gear (11), the outer wall of the mounting frame (2) is fixedly equipped with a driving motor (13), the power output shaft of the driving motor (13) is fixedly equipped with a No. 1 driving gear (12), and the outer wall of the mounting frame (2) is fixedly equipped with a central controller (14); The pressure regulating assembly (7) comprises a support plate (701), the outer wall of the support plate (701) is fixedly equipped with a support rod (702), the outer wall of the support rod (702) is fixedly equipped with a limit ring (703), the bottom of the support plate (701) is fixedly equipped with a No. 1 tooth plate (704), the bottom of the support plate (701) is fixedly equipped with a No. 2 tooth plate (705), the outer wall of the No. 1 tooth plate (704) is movably sleeved with a movable plate (706), the outer wall of the support rod (702) is movably sleeved with a pressure spring (707), the outer wall of the support rod (702) is movably sleeved with a pressure plate (708), and the top of the movable plate (706) is fixedly equipped with a pressure spring (707). A support base (709) is provided, wherein a dual-axis motor (7010) is fixedly mounted on the top of the support base (709), a first worm (7011) is fixedly mounted on the power output shaft of the dual-axis motor (7010), a second worm (7012) is fixedly mounted on the power output shaft of the dual-axis motor (7010), an auxiliary frame (7013) is fixedly mounted on the top of the movable plate (706), an inner cavity of the auxiliary frame (7013) is rotatably connected to a second driven gear (7014), an outer wall of the second driven gear (7014) is fixedly mounted to a worm wheel (7015), and a third driven gear (7016) is rotatably connected to the top of the movable plate (706); The sampling assembly (8) includes a water pipe (801), a connecting pipe (802) is installed on the top of the water pipe (801), a cylindrical groove (803) is opened in the inner cavity of the connecting pipe (802), an auxiliary rod (804) is fixedly installed on the inner wall of the cylindrical groove (803), a supporting spring (805) is movably sleeved on the outer wall of the auxiliary rod (804), a floating rod (806) is movably sleeved on the outer wall of the auxiliary rod (804), a blocking plate (807) is fixedly installed on the outer wall of the floating rod (806), a collecting cylinder (808) is fixedly installed on the top of the connecting pipe (802), and a top cover (809) is threadedly connected to the top of the installation box (6); The outer wall of the water guide pipe (801) away from the connecting pipe (802) is connected to the outer wall of the water inlet cylinder (9), and the inner cavity of the water guide pipe (801) is in communication with the inner cavity of the water inlet cylinder (9). The inner wall diameter of the cylindrical groove (803) is larger than the outer wall diameter of the blocking plate (807); The outer wall diameter of the pressure plate (708) is equal to the inner wall diameter of the water inlet cylinder (9); the outer wall of the No. 1 driving gear (12) and the outer wall of the No. 1 driven gear (11) are meshed with each other, and the outer wall diameter of the No. 1 driving gear (12) is smaller than the outer wall diameter of the No. 1 driven gear (11); and the central controller (14) is electrically connected to the driving motor (13) and the dual-axis motor (7010), respectively.

2. A water quality detection device according to claim 1, characterized in that: The two ends of the outer wall of the pressure spring (707) are in contact with the top of the pressure plate (708) and the bottom of the movable plate (706) respectively, and the pressure spring (707) is made of high carbon steel. The outer wall of the No. 1 worm (7011) is meshed with the outer wall of the worm wheel (7015), and the outer wall of the No. 2 driven gear (7014) is meshed with the outer wall of the No. 3 driven gear (7016), and the outer wall diameter of the No. 2 driven gear (7014) is smaller than the outer wall diameter of the No. 3 driven gear (7016).

3. A water quality detection device according to claim 2, characterized in that: The outer wall of the third driven gear (7016) is meshed with the outer wall of the second gear plate (705), the outer walls of the first gear plate (704) and the second gear plate (705) respectively pass through the inner cavity of the movable plate (706), and the outer wall diameter of the limiting ring (703) is larger than the outer wall diameter of the support rod (702).

4. A water quality detection device according to claim 1, characterized in that: The two ends of the outer wall of the support spring (805) are respectively connected to the inner wall of the cylindrical groove (803) and the outer wall of the floating rod (806), and the support spring (805) is made of high carbon steel.

5. A water quality detection device according to claim 4, characterized in that: The inner cavity of the connecting tube (802) is in communication with the inner cavity of the collecting cylinder (808). There are two auxiliary rods (804), and the two auxiliary rods (804) are respectively installed at the two ends of the inner wall of the cylindrical groove (803).

6. The detection method of a water quality detection device according to claim 5, characterized in that: The following steps are involved: S1: When sampling and testing of water in a river is required, the support frame (1) is installed in the river, and the pressure of the water at the depth required for sampling is calculated under the action of the central controller (14), and the pressure at this depth is measured, and then the stroke of the pressure spring (707) is adjusted according to the measured pressure; S2: The dual-axis motor (7010) is started by the central controller (14). Under the action of the dual-axis motor (7010), the first worm (7011) and the second worm (7012) are driven to rotate respectively. Under the action of the first worm (7011), the worm wheel (7015) is driven, so that the second driven gear (7014) drives the third driven gear (7016) to rotate. When the third driven gear (7016) rotates, it drives the movable plate (706) to move along the outer wall of the second tooth plate (705). When the movable plate (706) moves along the outer wall of the second tooth plate (705), the stroke of the pressure spring (707) is adjusted. According to the spring coefficient of the pressure spring (707), the pressure applied by the pressure spring (707) to the top of the pressure plate (708) is close to the water pressure, and the elastic force of the pressure spring (707) is slightly smaller than the water pressure at the specified depth. S3: Then, the driving motor (13) is started by the central controller (14). Driven by the driving motor (13), the first driven gear (11) and the driving sprocket (3) rotate synchronously, driving the chain plate (5) to rotate on the outer wall of the mounting frame (2), thereby driving the mounting box (6) into the water. When the mounting box (6) moves downward to a specified depth, the water pressure will act on the bottom of the pressure plate (708). When the mounting box (6) continues to move downward, the water pressure will exceed the pressure of the pressure spring (707), causing the pressure plate (708) to move upward along the outer wall of the support rod (702). When the outer wall of the pressure plate (708) passes over the water guide pipe (801), water will enter the inner cavity of the water guide pipe (801); S4: After the water flows into the inner cavity of the water guide pipe (801), it pushes the blocking plate (807) upward, causing the floating rod (806) to move upward along the outer wall of the auxiliary rod (804), causing the blocking plate (807) to move to the position of the cylindrical groove (803). At this time, the water flows into the inner cavity of the collection tube (808). After a period of time, the water of the specified depth can be collected. After the water enters the inner cavity of the collection tube (808), it cannot escape downward. After the collection is completed, the installation box (6) moves upward. At this time, the pressure of the pressure spring (707) is greater than the water pressure, and the inner cavity of the water inlet tube (9) is blocked. S5: At this time, the blocking plate (807) will stay in the inner cavity of the connecting pipe (802). When the top cover (809) is removed from the top of the installation box (6) and the collecting tube (808) is pulled upward, the bottom of the connecting pipe (802) will separate from the top of the water pipe (801). Then, the blocking plate (807) will move downward quickly under the action of the supporting spring (805), blocking the inner cavity of the connecting pipe (802) to prevent the water in the inner cavity of the collecting tube (808) from being released outward.

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