Water quality detection device for water conservancy and hydropower engineering

Abstract

The invention relates to a water quality detection device for water conservancy and hydropower engineering, in particular to the technical field of water quality monitoring, which comprises a shell, an electric winder is arranged in the shell, a rope is wound on the electric winder, probes are arranged at the tail end of the rope, a plurality of probes are arranged in a gravity block, the gravity block is fixedly connected to the tail end of the rope, and the probes are arranged in the gravity block. The micro air cylinder is arranged in the hollow position in the gravity block and electrically connected with the electric winder through the control module, and the end of a telescopic rod of the micro air cylinder is connected with a circular plate. The gravity block is arranged outside the probe, the purpose of protecting the probe can be achieved, the problem that the probe floats and cannot sink due to buoyancy can be solved, the protective shell is further arranged at the tail of the probe for dual protection, and after the gravity block drives the probe to enter a water area with the needed depth, the probe can be prevented from falling off. The miniature cylinder drives the circular plate, the protective shell and the probe to descend and extend out of the gravity block, so that the detection purpose can be achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality monitoring, and particularly to a water quality detection device for water conservancy and hydropower projects. Background Art

[0002] During the construction of water conservancy projects, in order to ensure that the water quality meets specific standards and requirements, thereby protecting human health, the ecological environment, and supporting various water use needs, it is necessary to detect the water quality. Currently, the common method for water quality detection is to first use a sampling bottle to sink into the water to take a sample, and then pour the water into the detection equipment for water quality detection. The patent with the publication number CN211348028U discloses a portable water quality detector for farmland water quality detection, including a housing. Inside the upper part of the housing, there is a potential comparator, and in the middle of the housing, there is a fixed column. A fixed disk is rotatably sleeved outside the fixed column, and a disc spring is connected between the inner wall of the fixed disk and the fixed column. At the bottom end inside the housing, there is a probe cavity, and six groups of probes are arranged in the probe cavity.

[0003] The above patent omits the water quality sampling step in the water quality detection method and directly inserts the probe into the water body for detection. However, due to the complex environment in the water, when the probe is directly thrown into the water, it may be affected by the impact of aquatic animals and affect the falling of the probe. At the same time, the probe may be damaged. Therefore, a water quality detection device for water conservancy and hydropower projects is designed. Summary of the Invention

[0004] The technical solution of the present invention is: A water quality detection device for water conservancy and hydropower projects, including a housing. An electric wire winder is arranged inside the housing, and a rope is wound around the electric wire winder. A probe is arranged at the end of the rope. Multiple probes are arranged inside a gravity block, and the gravity block is fixedly connected to the end of the rope. The probe is arranged inside the gravity block. A micro cylinder is arranged in the hollow position inside the gravity block. The micro cylinder and the electric wire winder are electrically connected through a control module. The end of the telescopic rod of the micro cylinder is connected to a circular plate, and multiple protective shells are arranged at the bottom of the circular plate. The probe is installed inside the protective shell.

[0005] In one embodiment, multiple outlets are opened at the bottom of the gravity block, and a plug is arranged on the outlet. The plug is slidably connected to the bottom of the gravity block, and the plug blocks the outlet. A spring is arranged on the plug, one end of the spring is fixedly connected to the plug, and the other end of the spring is fixedly connected to the gravity block.

[0006] In one embodiment, the protective shell is set in a cylindrical shape, and its diameter is the same as the inner diameter of the outlet.

[0007] In one embodiment, a through hole is opened in the middle of the plug, and a plug head is arranged on the through hole. Multiple connecting rods are arranged on the plug head, and the connecting rods are fixedly connected to the plug head. The plug head blocks the through hole position, and the end of the connecting rod is fixedly connected to the protective shell.

[0008] In one embodiment, the top surface structure of the plug block is inclined from the edge towards the through hole position.

[0009] In one embodiment, it further includes a header device. The header device is arranged on one side of the housing close to the electric winding device. A telescopic hose is arranged inside the header device. The rope passes through the hollow position inside the telescopic hose. The reinforcing rib of the telescopic hose is arranged as a hollow threaded pipe. One side of the hollow threaded pipe close to the header device is connected to an air inlet device, and a uniformly distributed first air outlet pipe is opened on the hollow threaded pipe. The first air outlet pipe is distributed in a threaded manner on the telescopic hose. The end of the telescopic hose is arranged on the top of the gravity block.

[0010] In one embodiment, it further includes a gas dispersion pipe body. The gas dispersion pipe body is arranged inside the gravity block. A plurality of second air outlet pipes are arranged on the gas dispersion pipe body. The second air outlet pipes penetrate through the gravity block. One side of the gas dispersion pipe body close to the telescopic hose is provided with a hollow column. The hollow column is communicated with the hollow threaded pipe of the telescopic hose, and the hollow column is communicated with the gas dispersion pipe body.

[0011] In one embodiment, it further includes a closing cover. The closing cover is slidably connected inside the hollow column. The closing cover is provided with symmetrically arranged ventilation openings.

[0012] In one embodiment, it further includes a connecting column. The connecting column is fixedly connected to the bottom of the closing cover. The connecting column is slidably connected to the gravity block. The bottom of the connecting column is fixedly connected to a circular plate.

[0013] The beneficial effects are as follows: By arranging a gravity block outside the probe in the present invention, firstly, it can protect the probe, and secondly, it can solve the problem that the probe floats due to buoyancy and cannot sink. Moreover, a protective shell is also arranged at the tail of the probe for double protection. After the gravity block drives the probe to enter the water area of the required depth, the micro cylinder drives the circular plate, the protective shell and the probe to descend and extend out of the gravity block, and then the detection purpose can be achieved.

[0014] By arranging a plug block at the outlet in the present invention, it can prevent the water on the water surface from flowing to the outlet and avoid impurities hitting the probe during the process of the gravity block moving down and sinking into the water, so as to prevent the probe from being damaged. During the process of the probe extending out of the outlet, the plug block is automatically pushed downward by a pushing member for detection.

[0015] By arranging the telescopic hose, the first air outlet pipe, the gas dispersion pipe body and the second air outlet pipe in the present invention, an air curtain can be formed around the rope and the gravity block, which can protect the rope and the probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic three-dimensional structure diagram of the present invention.

[0017] Figure 2 This is a partial perspective cross-sectional view of the present invention.

[0018] Figure 3 This is a partial perspective structural schematic diagram of components such as the probe, micro cylinder, and circular plate of the present invention.

[0019] Figure 4 This is a perspective structural schematic diagram of the hollow column and the closing cover of the present invention.

[0020] Figure 5 This is a partial perspective structural schematic diagram of components such as the probe, connecting rod, and plug of the present invention.

[0021] Figure 6 This is a partial perspective structural schematic diagram of components such as the hollow column, gas dispersion tube body, and second outlet pipe of the present invention.

[0022] The markings in the figure are: 1 - housing, 2 - electric wire winder, 3 - rope, 4 - gravity block, 5 - probe, 6 - micro cylinder, 7 - circular plate, 8 - protective housing, 9 - plug block, 10 - spring, 11 - connecting rod, 12 - plug, 13 - through hole, 14 - first outlet pipe, 15 - telescopic hose, 16 - manifold device, 17 - hollow column, 18 - gas dispersion tube body, 19 - second outlet pipe, 20 - closing cover, 21 - ventilation port, 22 - connecting column. Detailed implementation manners

[0023] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0024] A water quality detection device for water conservancy and hydropower projects, as Figure 1 - Figure 2 shown, includes a housing 1. The upper part of the housing 1 is a hollow ring structure, which is convenient for installation on a fixed body. For example: on a fixing part of a ship, the water quality detection device for this water conservancy and hydropower project can be installed on the ship to detect the water quality of waters at different positions;

[0025] An electric wire winder 2 is arranged inside the housing 1. A rope 3 is wound around the electric wire winder 2. The electric wire winder 2 is driven by a motor. The electric wire winder 2 can automatically rotate clockwise or counterclockwise to wind up and unwind the rope 3. The electric wire winder 2 is a prior art, and this solution will not be elaborated much;

[0026] Multiple probes 5 are arranged at the end of the rope 3. The probes 5 are connected to an external display device through a circuit. The results detected by the probes 5 will be displayed on the external display device for users to observe.

[0027] In the above solution, the rope 3 can be relaxed by the electric wire winder 2, and the probe 5 drops vertically into the water. After the probe 5 enters the water area at the required depth, it can perform water quality detection. When the probe 5 extends into the water, due to the complex environment in the water, it may be impacted by aquatic animals, affecting the descent of the probe 5 and possibly damaging the probe 5. Therefore, in this embodiment, a gravity block 4 is provided. The gravity block 4 is arranged at the end of the rope 3, and the probe 5 is located inside the gravity block 4, with the probe 5 surrounded by the gravity block 4. After the rope 3 is relaxed, the gravity block 4 can overcome the influence of buoyancy on the downward movement speed of the probe 5 after it enters the water, and the gravity block 4 drives the probe 5 to move downward. Since the gravity block 4 surrounds the outside of the probe 5, during the descent of the probe 5, aquatic animals in the water will not directly hit the probe 5 but will hit the gravity block 4. The gravity block 4 is hard enough to protect the probe 5. When the gravity block 4 drives the probe 5 to enter the water area at the depth position to be detected, the probe 5 needs to extend out of the gravity block 4 and enter the water area, and the probe 5 is driven by a power source to operate;

[0028] As Figure 3 shown, the power source is a micro cylinder 6. The micro cylinder 6 and the electric wire winder 2 are electrically connected through a control module. The micro cylinder 6 is arranged in the hollow position inside the gravity block 4. A circular plate 7 is connected to the end of the telescopic rod of the micro cylinder 6. A plurality of protective shells 8 are provided at the bottom of the circular plate 7. The probe 5 is installed inside the protective shell 8. The protective shell 8 can provide secondary protection for the probe 5. After the probe 5 reaches the water area at the required depth, the user turns off the electric wire winder 2, and the electric wire winder 2 will send an electrical signal to the micro cylinder 6. After receiving the signal, the micro cylinder 6 starts to work. The telescopic rod of the micro cylinder 6 will contract and move for 1 second and then automatically stop working, driving the circular plate 7, the protective shell 8, and the probe 5 to descend. After the probe 5 extends out of the gravity block 4, the probe 5 can perform water quality detection. The setting of the protective shell 8 covers most of the position of the probe 5, and only the detection head of the probe 5 is exposed. In this way, most of the position of the probe 5 can be provided with secondary protection. After the detection is completed, the electric wire winder 2 is turned on, and the electric wire winder 2 starts to wind up the electric wire winder 2. At this time, the electric wire winder 2 will send an electrical signal to the micro cylinder 6 again. After receiving the signal, the micro cylinder 6 starts to extend and automatically stops working after 1 second, driving the circular plate 7, the protective shell 8, and the probe 5 to move upward and reset;

[0029] It should be noted that the gravity block 4 has an internal hollow structure rather than an open structure. An outlet is provided at the position where the probe 5 extends out of the gravity block 4, and the number of the outlets is the same as the number of the probes 5;

[0030] Setting an outlet on the gravity block 4 causes the following problems: When the gravity block 4 enters the water, the water on the water surface will enter the interior of the gravity block 4 from the outlet. In this way, the water on the water surface will remain inside the gravity block 4 and at the outlet position. If the probe 5 needs to detect the water at a deep position, the water retained inside the gravity block 4 and at the outlet may have come into contact with the probe 5, so it will affect the accuracy of the probe 5 in detecting the deep water. For this reason, the following measures are proposed in this embodiment:

[0031] The protective shell 8 is set in a cylindrical shape, and its diameter is the same as the inner diameter of the outlet. In the initial state, the protective shell 8 is located above the outlet and is in a state of blocking the upper part of the outlet. In this way, during the downward movement of the gravity block 4, since the protective shell 8 blocks the outlet, water will not enter the interior of the gravity block 4 through the outlet, and there will still be water on the water surface retained at the outlet. When the protective shell 8 drives the probe 5 to extend into the outlet, the protective shell 8 will push out the water at the outlet, so as to avoid the water on the water surface affecting the detection accuracy of the probe 5.

[0032] Since the detection head of the probe 5 is located at the outlet, during the process of the gravity block 4 driving the probe 5 to descend, impurities in the water body may enter the outlet position. In this way, the impurities are likely to come into contact with the detection head of the probe 5 and thus damage the detection head of the probe 5. Therefore, the outlet needs to be closed, and the following solution is adopted:

[0033] As Figure 3 and Figure 5 shown, a blocking block 9 is provided at the bottom of the outlet. The blocking block 9 is slidably connected to the bottom of the gravity block 4. In the initial state, the blocking block 9 blocks the outlet. In this way, when the gravity block 4 enters the water, water and impurities will not enter the outlet to contact the probe 5. Then, when the protective shell 8 drives the probe 4 to move downward and extend out, the protective shell 8 pushes the blocking block 9 downward through a pushing member. Therefore, after the blocking block 9 opens the outlet, it is convenient for the probe 4 to extend out. At this time, the spring 10 provided on the blocking block 9 is compressed. One end of the spring 10 is fixedly connected to the blocking block 9, and the other end of the spring 10 is fixedly connected to the gravity block 4. The function of the spring 10 is to keep the blocking block 9 blocking the outlet. When the probe 4 finishes detecting and moves upward and resets with the blocking block 9, the spring 10 drives the blocking block 9 to move upward and reset to block the outlet again.

[0034] During the process of the blocking block 9 moving upward and resetting, water will enter the outlet accordingly. And when the gravity block 4 drives its upper components to move upward and leave the water, there is always water at the outlet. If the water at the outlet is not drained, the water will always be at the position of the detection head. Firstly, over time, it will cause the detection head to lose its detection sensitivity. Secondly, when using this device for detection, the water at the outlet will be carried to the water area to be detected, and there will still be a problem of affecting the detection accuracy. Therefore, the following solution is set:

[0035] A through hole 13 is provided in the middle of the plug block 9. A plug 12 is provided on the through hole 13, and the plug 12 blocks the position of the through hole 13. The pushing member is a connecting rod 11. The connecting rod 11 is fixedly connected to the plug 12, and the end of the connecting rod 11 is fixedly connected to the protective shell 8. The through hole 13 is composed of two cavities with different diameters. The diameter of one cavity is the same as that of the plug 12, and the diameter of the other cavity is smaller than that of the plug 12. The purpose is as follows:

[0036] First, the plug 12 blocks the cavity with the same diameter. In this way, when the gravity block 4 descends and extends into the water, the outside water will not enter the outlet position through the through hole 13.

[0037] Second, when the protective shell 8 drives the probe 5 to extend out of the gravity block 4, the connecting rod 11 will push the plug block 9 downward through the plug 12. The plug 12 abuts against the upper part of the cavity with a small diameter, so the plug 12 will not directly penetrate through the through hole 13.

[0038] After the detection is completed, water enters the outlet. After the gravity block 4 moves out of the water surface, people turn off the electric winch 2. At this time, after receiving the signal, the micro cylinder 16 will continue to extend for 1 second and then automatically contract for 1 second to stop working. The protective shell 8 will drive the connecting rod 11 and the plug 12 to move up a little distance first and then move downward to reset. When the plug 12 moves up, the through hole 13 will be opened, and the water at the outlet will flow out automatically.

[0039] It should be further noted that: the top surface structure of the plug block 9 is inclined towards the position of the through hole 13. When there is water at the outlet, the water will flow towards the through hole 13 through the inclined surface and be discharged. The inclined setting can achieve the effect of drainage.

[0040] Since the rope 3 enters the water, aquatic plants or impurities will wind around the rope, affecting its winding. Therefore, the rope 3 needs to be protected. A telescopic hose 15 is arranged outside the rope 3. The telescopic hose 15 is made of pressure-resistant material. The telescopic hose 15 is a relatively common component in the prior art, and its principle and structure will not be elaborated in this embodiment.

[0041] When the gravity block 4 descends, the telescopic hose 15 will elongate accordingly. When the gravity block 4 ascends, the telescopic hose 15 will shorten accordingly. The telescopic hose 15 can expand and contract according to the ascent and descent of the gravity block 4. Therefore, the telescopic hose 15 can always surround the rope 3, resist aquatic plants or impurities, and prevent them from winding around the rope 3, playing a protective role.

[0042] One end of the telescopic hose 15 away from the electric winch 2 is arranged on the gravity block 4. A header device 16 is provided at one end of the gravity block 4 close to the electric winch 2. The header device 16 is installed on the housing 1. The header device 16 is used to store the telescopic hose 15. It is a prior art and will not be elaborated in this solution.

[0043] In order to avoid water plants or impurities approaching the rope 3 as much as possible, an air curtain is formed around the telescopic hose 15 by the air curtain principle to resist water plants or impurities and strengthen the protection of the rope 3. The reinforcing rib of the telescopic hose 15 is set as a hollow threaded pipe. One side of the hollow threaded pipe close to the header device 16 is connected to an external air intake device, and the first air outlet pipes 14 are evenly distributed on the hollow threaded pipe. The first air outlet pipes 14 are distributed in a threaded manner on the telescopic hose 15;

[0044] The external air intake device is connected to the hollow threaded pipe to input gas into the hollow threaded pipe. During the process of the telescopic hose 15 extending into the water, the gas continuously discharges from the first air outlet pipes 14, and a cylindrical air curtain can be formed, which can blow away the water plants or impurities close to the rope 3 to avoid their approach and strengthen the protection of the rope 3.

[0045] It also includes a gas dispersion pipe body 18. The gas dispersion pipe body 18 is arranged in the gravity block 4. A plurality of second air outlet pipes 19 are provided on the gas dispersion pipe body 18. The second air outlet pipes 19 penetrate through the gravity block 4, and the second air pipes 19 are evenly distributed at equal intervals along the outer circumference of the gravity block 4. One side of the gas dispersion pipe body 18 close to the telescopic hose 15 is provided with a hollow column 17. The hollow column 17 is communicated with the hollow threaded pipe of the telescopic hose 15, and the hollow column 17 is communicated with the gas dispersion pipe body 18.

[0046] The gas will enter the hollow column 17 through the telescopic hose 15 and then discharge from the second air outlet pipes 19, which can form an air curtain around the gravity block 4 and also avoid water plants or impurities approaching the gravity block 4 and affecting the falling of the probe 5.

[0047] During the process of the probe 5 extending for detection, if the air curtain around the gravity block 4 is constantly discharging gas, it will cause bubbles to appear in the water around the probe 3, and the generation of bubbles will affect the accuracy of the probe for water quality detection. Therefore, the following scheme needs to be set when detecting water quality:

[0048] As Figure 3 、 Figure 4 and Figure 6 shown, the closing cover 20 is slidably connected inside the hollow column 17, and there is a gap between the top of the closing cover 20 and the inner top of the hollow column 17. Therefore, the setting of the closing cover 20 will not affect the gas in the telescopic hose 15 from entering the hollow column 17;

[0049] The closed cover 20 is provided with symmetrically arranged ventilation openings 21. Initially, the ventilation openings 21 communicate with the communication openings between the hollow column 17 and the gas dispersion tube body 18. Therefore, the gas will normally be discharged from the second outlet pipe 19 to form an air curtain. During the process of the circular plate 7 driving the protective shell 8 and the probe 5 to extend out of the gravity block 4, the closed cover 20 will simultaneously move downward through a power source. The ventilation openings 21 of the closed cover 20 are misaligned with the communication openings between the hollow column 17 and the gas dispersion tube body 18, so that the closed cover 20 blocks the communication openings. Therefore, the gas will not be discharged from the second outlet pipe 19, and the air curtain disappears, which can avoid the appearance of bubbles in the water around the probe 3 and affect the detection. During the reset process of the probe 5 after the detection is completed, the closed cover 20 also moves upward and resets, so that the ventilation openings 21 communicate with the communication openings between the hollow column 17 and the gas dispersion tube body 18;

[0050] The power source for pushing the closed cover 20 is the connecting column 22. The connecting column 22 is fixedly connected to the bottom of the closed cover 20. The connecting column 22 is slidably connected to the gravity block 4. The bottom of the connecting column 22 is fixedly connected to the circular plate 7. During the movement of the circular plate 7, it will drive the connecting column 22 and the closed cover 20 to move synchronously. In this way, the effect of automatically closing the air curtain around the gravity block 4 while extending the probe 5 can be achieved.

[0051] The above are only examples of the present invention and are not used to limit the present invention. Any equivalent replacement made within the principle of the present invention shall be included in the protection scope of the present invention. The content not elaborated in detail in the present invention belongs to the well-known prior art in the technical field of this specialty.

Claims

1. A water quality detection device for water conservancy and hydropower projects, comprising a housing (1). An electric wire winder (2) is arranged inside the housing (1). A rope (3) is wound around the electric wire winder (2). A probe (5) is arranged at the end of the rope (3). Multiple probes (5) are arranged inside a gravity block (4). It is characterized in that: The gravity block (4) is fixedly connected to the end of the rope (3). The probe (5) is arranged inside the gravity block (4). A micro cylinder (6) is arranged at the hollow position inside the gravity block (4). The micro cylinder (6) and the electric wire winder (2) are electrically connected through a control module. The end of the telescopic rod of the micro cylinder (6) is connected to a circular plate (7). A plurality of protective shells (8) are arranged at the bottom of the circular plate (7). The probe (5) is installed inside the protective shell (8).

2. The water quality detection device for a water conservancy and hydropower project according to claim 1, characterized in that: A plurality of outlets are opened at the bottom of the gravity block (4). A blocking block (9) is arranged on the outlet. The blocking block (9) is slidably connected to the bottom of the gravity block (4). The blocking block (9) blocks the outlet. A spring (10) is arranged on the blocking block (9). One end of the spring (10) is fixedly connected to the blocking block (9), and the other end of the spring (10) is fixedly connected to the gravity block (4).

3. The water quality detection device for a water conservancy and hydropower project according to claim 2, wherein: The shape of the protective shell (8) is set as a cylinder, and its diameter is the same as the inner diameter of the outlet.

4. The water quality detection device for a water conservancy and hydropower project according to claim 3, wherein: A through hole (13) is opened in the middle of the blocking block (9). A plug (12) is arranged on the through hole (13). A plurality of connecting rods (11) are arranged on the plug (12). The connecting rods (11) and the plug (12) are fixedly connected. The plug (12) blocks the position of the through hole (13). The end of the connecting rod (11) is fixedly connected to the protective shell (8).

5. The water quality detection device for a water conservancy and hydropower project according to claim 4, characterized in that: The top surface structure of the blocking block (9) is inclined from the edge to the position of the through hole (13).

6. The water quality detection device for a water conservancy and hydropower project according to claim 5, characterized in that: It further includes a header device (16). The header device (16) is arranged on one side of the housing (1) close to the electric wire winder (2). A telescopic hose (15) is arranged inside the header device (16). The rope (3) passes through the hollow position inside the telescopic hose (15). The reinforcing rib of the telescopic hose (15) is set as a hollow threaded pipe. One side of the hollow threaded pipe close to the header device (16) is connected to an air intake device, and air outlet pipes one (14) are evenly distributed on the hollow threaded pipe. The air outlet pipes one (14) are distributed in a threaded manner on the telescopic hose (15). The end of the telescopic hose (15) is arranged on the top of the gravity block (4).

7. The water quality detection device for a water conservancy and hydropower project according to claim 5, characterized in that: It further includes a gas dispersion pipe body (18). The gas dispersion pipe body (18) is arranged inside the gravity block (4). A plurality of air outlet pipes two (19) are arranged on the gas dispersion pipe body (18). The air outlet pipes two (19) penetrate through the gravity block (4). A hollow column (17) is arranged on one side of the gas dispersion pipe body (18) close to the telescopic hose (15). The hollow column (17) is communicated with the hollow threaded pipe of the telescopic hose (15), and the hollow column (17) is communicated with the gas dispersion pipe body (18).

8. The water quality detection device for a water conservancy and hydropower project according to claim 6, characterized in that: It further includes a closing cover (20). The closing cover (20) is slidably connected inside the hollow column (17). Symmetrically arranged air vents (21) are opened on the closing cover (20).

9. The water quality detection device for a water conservancy and hydropower project according to claim 7, characterized in that: It further includes a connecting column (22), the connecting column (22) is fixedly connected to the bottom of the closed cover (20), the connecting column (22) is slidably connected to the gravity block (4), and the bottom of the connecting column (22) is fixedly connected to the circular plate (7).

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