Water pollution detection sampling device

Abstract

The invention relates to the technical field of environment detection, in particular to a water pollution detection sampling device which comprises a water sampling tank, a limiting frame arranged on the water sampling tank, a clamping column arranged on the water sampling tank, a clamping groove formed in the limiting frame, a guide rod arranged on the limiting frame, a push rod arranged on the guide rod, a collecting piece arranged on the push rod, and a top opening formed by the collecting piece. A limiting frame is arranged on the sampling box body, a conical sampling box body is arranged at the bottom of the sampling box body, a waterproof electric push rod is arranged on the limiting frame, the waterproof electric push rod is connected with the limiting frame, a fixing frame is arranged on the waterproof electric push rod, and a pull rope is arranged on the fixing frame. Water sample collection and sediment collection work are synchronously carried out, so that the collection efficiency of the device is improved, and the comprehensive research of the device is conveniently realized.

Description

Technical Field

[0001] The present invention relates to the technical field of environmental detection, and particularly to a water pollution detection sampling device. Background Art

[0002] Many river channels are the drinking water sources of cities or rural areas. During industrial production and agricultural irrigation, some sewage may be discharged into the river channels, thus polluting the water sources. The polluted water sources can enter the food chain through crops and aquatic products. Therefore, regular detection of the river channel water sources can ensure that there are no harmful substances (such as heavy metals, pesticide residues, pathogens) in the water, and prevent residents from getting diseases caused by drinking polluted water.

[0003] Conventional river sewage detection mainly focuses on taking water samples and mainly detecting dissolved pollutants in the water samples, such as ammonia nitrogen (NH3-N), nitrate (NO3 - ), dissolved heavy metals (such as hexavalent chromium), chemical oxygen demand (COD), biochemical oxygen demand (BOD), etc. This sampling method can quickly evaluate the current pollution degree of the water body and is suitable for conventional water quality monitoring and emergency response. However, the pollutants may migrate with the water flow or be adsorbed by sediment, and the water sample only represents the instantaneous or short-term pollution state and cannot reflect the long-term pollution accumulation situation. At the same time, the sensitivity to some pollutants in the water body is low. For example, hydrophobic organic compounds (such as polycyclic aromatic hydrocarbons) or heavy metals are easily adsorbed in the sediment, and the concentration of the water sample may be extremely low, making it difficult to detect.

[0004] To achieve comprehensive research (such as total pollution accounting, ecological risk assessment), it is necessary to analyze both the water body and the sediment simultaneously to comprehensively understand the pollution characteristics. Therefore, a water pollution detection sampling device is proposed. Summary of the Invention

[0005] According to the problems raised in the background art, the present invention provides a water pollution detection sampling device to solve them, and the following is a further elaboration of the present invention.

[0006] A water pollution detection sampling device includes a water sample sampling tank. A limit frame is provided on the water sample sampling tank. A clamping column is provided on the water sample sampling tank. A clamping groove is provided on the limit frame. A guide rod is provided on the limit frame. A push rod is provided on the guide rod. A collecting member is provided on the push rod. The collecting member forms a sampling box body with an open top and a conical bottom. A waterproof electric push rod is provided on the limit frame. The waterproof electric push rod is connected to the limit frame. A fixing frame is provided on the waterproof electric push rod. A pulling rope is provided on the fixing frame, aiming to sample the water flow and sediment respectively through a mechanical linkage method.

[0010] Furthermore, a counterweight block is provided on the collecting member, aiming to increase the gravity of the device and facilitate the sinking of the device.

[0011] Furthermore, a fixing ring is provided on the waterproof electric push rod, a telescopic member is provided on the fixing ring, the telescopic member is connected to the adjacent collecting member, and the telescopic member is electrically connected to the waterproof electric push rod, aiming to enable the collecting member to be deployed directionally through the electrical connection between the telescopic member and the waterproof electric push rod.

[0012] Furthermore, a through hole is provided on the water sample sampling tank, a closing plate is provided in the through hole, a connecting rod is provided on the closing plate, a connecting ring is provided on the connecting rod, a tension spring is provided between the connecting ring and the water sample sampling tank, and a steel wire rope is provided on the connecting ring, and the steel wire rope penetrates through the fixing frame, aiming to discharge the air in the water sample sampling tank and facilitate the inflow of water into the tank.

[0013] Furthermore, a first sliding groove and a second sliding groove are formed on the collecting member, a locking member is provided on the collecting member, a clamping member is slidably connected to the first sliding groove, an unlocking member is provided on the second sliding groove, the unlocking member is in extrusion fit with the clamping member, a fixing plate is provided on the collecting member, a support frame is provided on the fixing plate, the support frame penetrates through the fixing plate, the support frame is fixedly connected to the unlocking member, a return spring is provided between the unlocking member and the fixing plate, a plug pin is provided on the unlocking member, the end of the plug pin contacts the inner wall of the collecting member, a linear spring is provided between the plug pin and the unlocking member, and a jack is formed on the collecting member, aiming to realize the fixation of the collecting member through the cooperation of the locking member and the clamping member, and realize the supporting effect on the device through the movement of the support frame.

[0014] Furthermore, a wedge block is provided on the collecting member, and the wedge block is located above the locking member, and the unlocking of the locking member and the clamping member is realized through the extrusion fit between the locking member and the wedge block.

[0015] Furthermore, a water outlet hole is formed on the collecting member to facilitate the discharge of excess water.

[0016] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0017] 1. By arranging a water sample sampling tank and a collecting member in the sampling box body, the present invention realizes the collection of water samples and the collection of sediment respectively, and through the setting of the waterproof electric push rod and the push rod, the collection work of water samples and sediment is automatically and synchronously implemented.

[0018] 2. Through the cooperation of the air hole and the closing plate in the water sample sampling tank, the present invention enables water to flow into the water sample sampling tank, thereby realizing the effect of automatically taking water samples. By arranging a clamping member and a locking member on the collecting member, the collecting members are locked to each other and form a stable sampling box body, which is convenient for sinking into the water area for sampling.

[0019] 3. Through the mutual cooperation of the unlocking member and the support plate, the sampling box body is kept stable within the target water area, and the locking of the clamping member and the locking member is automatically released, facilitating the deployment of the collection member for sediment collection work, thereby improving the collection efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 : Schematic diagram of the overall structure of the present invention;

[0021] Figure 2 : Schematic diagram of the partial structure of the sampling box body of the present invention;

[0022] Figure 3 : Schematic diagram of the structure of the sediment collection action of the present invention;

[0023] Figure 4 : Schematic diagram of the structure of the limit frame of the present invention;

[0024] Figure 5 : Schematic diagram of the support action of the present invention;

[0025] In the figure: 1 - water sample sampling tank, 1101 - sampling box body, 101 - clamping column, 11 - fixing frame, 12 - pulling rope, 13 - steel wire rope, 131 - connecting ring, 14 - connecting rod, 141 - connecting piece, 142 - blocking piece, 143 - closing plate, 15 - tension spring, 16 - limit frame, 161 - card slot, 162 - guide rod, 17 - fixing ring, 171 - waterproof electric push rod, 18 - telescopic piece, 19 - collection piece, 110 - counterweight, 111 - push rod, 2 - support frame, 21 - return spring, 211 - fixing plate, 22 - bolt, 23 - linear spring, 24 - clamping member, 241 - first chute, 242 - second chute, 25 - locking member, 26 - wedge block, 27 - unlocking member, 28 - jack, 29 - water outlet hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, a specific embodiment of the present invention will be elaborated in detail with reference to the accompanying drawings.

[0027] Refer to the attached Figures 1 - 5, a water pollution detection sampling device, including a corrosion-resistant water sample sampling tank 1. The conventional sampling method is to place the water sample sampling tank 1 in a designated area in the water area to collect water samples, and then lift it to the ground for filtration, detection and analysis. However, as described in the background technology, this collection method only collects water samples in the river and cannot collect sediment. Therefore, this device is provided with components on the water sample sampling tank 1 that can collect sediment, and the sediment collection action and the water sample collection action are synchronized. The specific settings are as follows: The sediment collection device is arranged on the water sample sampling tank 1, including a limiting frame 16 clamped on the side wall of the water sample sampling tank 1. A plurality of clamping columns 101 distributed circumferentially are fixedly connected to the side wall of the water sample sampling tank 1. A plurality of uniformly distributed clamping slots 161 are opened on the limiting frame 16. It means that through the clamping connection of the clamping columns 101 and the clamping slots 161, the water sample sampling tank 1 can be fixed on the limiting frame 16, and the main components of the sediment collection work are arranged on the limiting frame 16, thus facilitating the synchronization of the sediment and water sample collection actions.

[0028] Before sampling, the clamping columns 101 on the water sample sampling tank 1 and the clamping slots 161 on the limiting frame 16 can be clamped and matched on the ground to fix the water sample sampling tank 1 and the limiting frame 16.

[0029] A plurality of guide rods 162 are fixedly connected to the bottom of the limiting frame 16. Push rods 111 are rotatably connected to the guide rods 162. Collection pieces 19 for collecting sediment are fixedly connected to the ends of the push rods 111. The push rods 111 are used to drive the collection pieces 19 to move. The collection pieces 19 can form a sampling box body 1101 with an open top and a conical bottom. The water sample sampling tank 1 for collecting water samples is placed inside the sampling box body 1101. It means that on the one hand, the relevant components of the collection work can be protected inside the sampling box body 1101, and on the other hand, the sediment collection work mainly depends on the opening and closing of the bottom of the collection piece 19.

[0030] The working principle of this device is as follows: The sampling box body 1101 is lowered to the target area of the river channel, and the collection of water samples and sediment is carried out by means of mechanical linkage. Based on this, when the sampling box body 1101 is lowered into the water area, it is necessary to ensure the stability of the sampling box body 1101. The push rods 111 fixedly connected with the collection members 19 are all rotatably connected to the guide rods 162. During the sinking process, the stability of the push rods 111 cannot be ensured, so the stability of the collection members 19 cannot be ensured. Therefore, this device solves this problem through a locking component, including that clamping members 24 are arranged on two opposite collection members 19 on the sampling box body 1101, and locking members 25 are arranged on the other two opposite collection members 19. When the limit frame 16 and the water sample sampling tank 1 are clamped, the clamping members 24 and the locking members 25 on the adjacent collection members 19 are automatically clamped, so that the angles of the push rods 111 and the collection members 19 are fixed, the water sample sampling tank 1 can be stable inside the sampling box body 1101, and the sampling box body 1101 maintains a stable structure with an open top and a conical bottom, which is convenient for not being affected by factors such as water flow and pressure during sinking.

[0031] According to the above, the collection of sediment depends on the opening and closing of the collection member 19. To realize the opening and closing of the collection member 19, this device makes the following settings: A waterproof electric push rod 171 is fixedly connected to the bottom of the limit frame 16. The output end of the waterproof electric push rod 171 is fixedly connected to the bottom of the limit frame 16. The waterproof electric push rod 171 is used to drive the limit frame 16 and the water sample sampling tank 1 to move up and down. A fixed frame 11 is fixedly connected to the waterproof electric push rod 171. A pull rope 12 is arranged at the top of the fixed frame 11, aiming to lift the sampling box body 1101 with the waterproof electric push rod 171 inside to the ground by pulling the pull rope 12.

[0032] Initially, the output end of the waterproof electric push rod 171 is in the extended state, the clamping member 24 and the locking member 25 are clamped, and the bottoms of the collection members 19 are connected seamlessly, forming a sampling box body 1101 with an open top and a sealed bottom. When this device is placed in the target area of the water area, it is necessary to first release the clamping of the clamping member 24 and the locking member 25, and then start the waterproof electric push rod 171 to make its output end move downward, thereby driving the limit frame 16 and the water sample sampling tank 1 to move downward. During this process, as the limit frame 16 moves downward, it drives the push rods 111 to move downward, thereby driving the collection members 19 to expand outward. The bottoms of the collection members 19 move and move away from each other to form an opening, so that water flow and sediment can enter the sampling box body 1101 through this opening.

[0033] Considering that this device will be affected by buoyancy when placed in the water area and there is a problem that it cannot sink smoothly to the target area, therefore, a counterweight block 110 is fixedly connected to the bottom of each of the collection members 19, aiming to increase the weight of the sampling box body 1101, so that the gravity of this device is much greater than the impact force of the fluid, thereby ensuring the stability of this device during the sinking process.

[0034] However, considering that the push rod 111 is rotatably connected to the guide rod 162 of the limit frame 16, the limit frame 16 moves downward, driving the guide rod 162 to move downward, thereby driving the push rod 111 to move downward, and driving the collecting member 19 to unfold. During the unfolding process of the collecting member 19 under water, there will be a situation where the unfolding angle is not fixed. In order to make the collecting member 19 unfold in a directional manner, the present device assists by setting a component on the waterproof electric push rod 171. The waterproof electric push rod 171 is fixedly connected to a fixing ring 17, and a plurality of telescopic members 18 are fixedly connected to the fixing ring 17 along the circumferential direction. The telescopic members 18 are connected to the waterproof electric push rod 171. The rod 171 is electrically connected so that the opening of the waterproof electric push rod 171 can be linked to the opening of the output end of the telescopic member 18. The output ends of the telescopic members 18 are fixedly connected to the adjacent collecting members 19 so as to generate a stable lateral thrust on the collecting members 19, thereby causing the collecting members 19 to expand in a directional manner. The waterproof electric push rod 171 is started and simultaneously triggers the output end of the telescopic member 18 to extend outward. In particular, the connection between the telescopic member 18 and the collecting member 19 supports the waterproof electric push rod 171, so as to stabilize the waterproof electric push rod 171 inside the sampling box 1101.

[0035] After the collecting member 19 is directionally unfolded, the silt and water flow enter the sampling box 1101. At this time, the water sampling tank 1 moves to the bottom of the sampling box 1101. The water sampling tank 1 is a closed tank in the initial state. In order to enable the water sampling tank 1 to automatically collect water samples, the following settings are made: the bottom wall of the water sampling tank 1 is provided with a through hole, and a closing plate 143 is slidably connected in the through hole, which means that the closing plate 143 is placed in the through hole in the bottom wall of the water sampling tank 1, so that the water sampling tank 1 can form a closed tank. When the closing plate 143 is separated from the through hole in the bottom wall of the water sampling tank 1, the water flow can enter the inside of the water sampling tank 1 through the through hole in the bottom wall of the water sampling tank 1. A connecting rod 14 is also fixedly connected to the closing plate 143. One end of the connecting rod 14 passes through the outside of the top of the water sample sampling tank 1, which means that the up and down movement of the connecting rod 14 can drive the closing plate 143 to move, thereby realizing the free opening of the through hole and facilitating the water flow into the water sample sampling tank 1. In order to realize the movement of the connecting rod 14, the device is provided with a pulling power source on the connecting rod 14, including a connecting ring 131 fixedly connected to the connecting rod 14 passing through the outside of the top of the water sample sampling tank 1, a tension spring 15 is provided between the connecting ring 131 and the top wall of the water sample sampling tank 1, a steel wire rope 13 is fixedly connected to the connecting ring 131, and the steel wire rope 13 passes through the fixing frame 11 and extends to the outside, which means that the connecting ring 131 is driven to move upward by pulling the steel wire rope 13, thereby driving the connecting rod 14 and the closing plate 143 to move upward synchronously.

[0036] As the wire rope 13 is pulled up, the connecting rod 14 and the closing plate 143 move upward, so that the water flows into the water sampling tank 1 from the through hole at the bottom of the water sampling tank 1. Under normal circumstances, there is a certain amount of air in the water sampling tank 1. As the water flows in, the air in the water sampling tank 1 is compressed. If it is not discharged, the pressure in the water sampling tank 1 will increase, resulting in the inability of the water to flow in smoothly. Therefore, the device is provided with an exhaust component on the water sampling tank 1 to solve this problem. The water sampling tank 1 has a top opening. Two air holes for exhaust (not shown in the figure), two parallel slide grooves are opened on the top of the water sampling tank 1, two blocking members 142 are slidably connected between the two slide grooves, and the blocking members 142 cover the adjacent air holes, and two connecting members 141 are rotatably connected to the connecting ring 131 through the support ears, and the other end of the connecting member 141 is rotatably connected to the adjacent blocking member 142, so as to drive the movement of the blocking member 142 by the movement of the connecting member 141, thereby regulating the covering action of the blocking member 142 on the air hole.

[0037] When the sampling box 1101 sinks to the target area of ​​the river channel, with the activation of the waterproof electric push rod 171 and the telescopic member 18, the locking member 24 and the locking member 25 are released, the collecting member 19 is directional and expanded, and the wire rope 13 is pulled upward to drive the connecting ring 131 to move upward, and the tension spring 15 is deformed, thereby driving the connecting member 141 to move upward, thereby driving the blocking member 142 to move toward each other in the top slide of the water sampling tank 1, thereby eliminating the obstruction of the blocking member 142 to the air hole on the water sampling tank 1. At the same time, the upward movement of the wire rope 13 drives the connecting rod 14 and the closing plate 143 to move upward synchronously, so as to facilitate the water flow from the bottom of the water sampling tank 1 The air in the water sampling tank 1 is compressed by the air holes, and the air in the water sampling tank 1 can be discharged through the air holes on the water sampling tank 1, so that the water can flow smoothly into the water sampling tank 1. Then, the waterproof electric push rod 171 and the telescopic member 18 are started to extend the output shaft of the waterproof electric push rod 171, and the limit frame 16 is controlled to move upward, and the push rods 111 are close to each other and gathered together. The collecting member 19 is controlled to move close to each other, and the bottom of the collecting member 19 is gradually close and then closed. In this process, the movement of the collecting member 19 constitutes a gripping structure, which collects the sediment in the water area into the sampling box 1101.

[0038] After the sampling work is completed, the wire rope 13 is loosened, and the connecting ring 131 automatically resets downward under the action of the tension spring 15, thereby driving the connecting rod 14 and the closing plate 143 to reset downward. At the same time, with the reset of the connecting ring 131, the connecting member 141 and the blocking member 142 are both reset, and then the blocking member 142 covers the air hole on the water sample sampling tank 1 again. Finally, the water sample sampling tank 1 forms a sealed tank body filled with water samples.

[0039] In the above, in order to achieve the automatic clamping and unclamping of the clamping member 24 and the locking member 25, the following settings are made for this device: On two opposite collecting members 19 of the sampling box body 1101, a first sliding groove 241 and a second sliding groove 242 are opened. On the other two opposite collecting members 19, locking members 25 are fixedly connected. A clamping member 24 is slidably connected to the first sliding groove 241, aiming to achieve the locking and unclamping actions with the locking member 25 through the sliding action of the clamping member 24. To facilitate driving the clamping member 24 to slide in the first sliding groove 241, a power source for sliding the clamping member 24 is provided on the second sliding groove 242. An unlocking member 27 is slidably connected in the second sliding groove 242, and the unlocking member 27 and the clamping member 24 are mutually pressed and matched, meaning that the sliding of the unlocking member 27 drives the sliding of the clamping member 24.

[0040] Since this device needs to collect sediment in the river, the sampling box body 1101 needs to sink to the bottom of the river. To facilitate the collecting member 19 to smoothly collect sediment, a certain distance should be reserved between the sampling box body 1101 and the bottom of the river and kept stable. Conventionally, a support component can be separately provided on the collecting member 19 to achieve this. To improve the practicability of this device, this support component is combined with the sliding power source of the clamping member 24.

[0041] Specifically, a fixing plate 211 is fixedly connected to the side wall of the collecting member 19 provided with the second sliding groove 242. A support frame 2 is slidably connected to the fixing plate 211. The bottom of the support frame 2 extends downward. The purposes are, firstly, to directly contact the bottom of the river through the support frame 2 to provide a supporting force for the sampling box body 1101, and secondly, to keep a certain height between the sampling box body 1101 and the bottom of the river through the length of the downward extension of the support frame 2. The top of the support frame 2 penetrates out of the fixing plate 211, and the top of the support frame 2 is fixedly connected to the bottom wall of the unlocking member 27. A return spring 21 is provided between the unlocking member 27 and the fixing plate 211. The sliding of the unlocking member 27 is driven by the movement of the support frame 2, and then the clamping member 24 is controlled to slide, achieving the automatic unclamping effect of the clamping member 24 and the locking member 25.

[0042] Hold the pulling rope 12 and sink the sampling box body 1101. The support frame 2 first contacts the bottom of the river and plays a supporting role. With the contact between the support frame 2 and the bottom of the river, the support frame 2 slides upward on the fixing plate 211, driving the unlocking member 27 to move upward, and then driving the clamping member 24 to move upward, achieving the automatic unclamping effect of the clamping member 24 and the locking member 25.

[0043] After the locking piece 24 is disengaged from the locking piece 25, the support frame 2 will continue to move up with the gravity of the sampling box 1101. In order to enable the support frame 2 to maintain its supporting effect on the sampling box 1101, the support frame 2 should stop when it moves up to the height after the locking piece 24 is disengaged from the locking piece 25. Specifically, the unlocking piece 27 is slidably connected to one end of the collecting piece 19 with a latch 22, and the end of the latch 22 contacts the inner wall of the collecting piece 19. A linear spring 23 is provided between the latch 22 and the unlocking piece 27. The collecting piece 19 also has a socket 28, which is intended to fix the unlocking piece 27 by engaging the latch 22 with the socket 28.

[0044] The support frame 2 moves up, the unlocking piece 27 moves up synchronously, and the reset spring 21 is deformed, driving the locking piece 24 and the latch 22 to move up until the locking piece 24 is disengaged from the locking piece 25, and the sediment collection work of the collecting piece 19 and the water sample collection work of the water sampling tank 1 proceed smoothly. At this time, the end of the latch 22 is just engaged with the socket 28, thereby achieving the fixation of the unlocking piece 27, and then achieving the fixation of the support frame 2, so that the support frame 2 maintains a stable effect on the sampling box 1101.

[0045] Taking into account the uneven bottom of the river channel and the accumulation of silt at the bottom of the river, the support frame 2 moves upward after contacting the bottom of the river channel, and the collection of silt mainly depends on the opening and closing of the bottom of the collecting piece 19. There may be a situation where the bottom of the collecting piece 19 conflicts with the uneven bottom of the river channel and cannot be opened and closed smoothly. Therefore, when the support frame 2 moves upward after contacting the bottom of the river channel, after the end of the pin 22 is engaged with the socket 28, the pull rope 12 is pulled to move the sampling box 1101 up a short distance, avoiding the above-mentioned problem and facilitating the subsequent silt collection work.

[0046] After the sampling work is completed, the sediment collected in the sampling box body 1101 and the water sample in the water sample sampling tank 1 need to be lifted to the ground together. The collecting member 19 needs to return to its initial state. By starting the waterproof electric push rod 171 and the telescopic member 18 respectively, the limiting frame 16 is jacked up and the collecting member 19 is gathered. At this time, the end of the bolt 22 is clamped with the jack 28, making the unlocking member 27 unable to move, and thus unable to drive the clamping member 24 and the locking member 25 to be clamped. As a result, the collecting member 19 cannot return to its initial state. Based on this, the following settings are made for this device. A wedge block 26 is fixedly connected to the collecting member 19 provided with the locking member 25. The wedge block 26 is located above the locking member 25. When the end of the bolt 22 is clamped with the jack 28, the top of the bolt 22 just contacts the end of the wedge block 26. With the start of the waterproof electric push rod 171 and the telescopic member 18, the output end of the telescopic member 18 contracts, and the output end of the waterproof electric push rod 171 extends. The push rod 111 is gathered, driving the collecting member 19 to gather, and thus driving the bolt 22 to gather. At this time, the bolt 22 and the wedge block 26 are squeezed, causing the bolt 22 to move along the inclined surface of the wedge block 26, and the linear spring 23 deforms. Furthermore, the bolt 22 is disengaged from the jack 28. Under the action of the deformation of the return spring 21, the unlocking member 27 is driven to move downward and reset, and then the clamping member 24 is driven to move downward and reset. Thus, the clamping of the clamping member 24 and the locking member 25 is realized. The bottoms of the collecting members 19 approach each other and form a closed cone, so that the collected sediment can be locked inside the sampling box body 1101. At this time, by pulling the pull rope 12, the sampling box body 1101 can be lifted to the ground for subsequent detection work.

[0047] The sampling box body 1101 is placed in the water area. The opening and closing of the collecting member 19 not only collect sediment, but also water flow will remain inside the sampling box body 1101. This part of the water flow is redundant for the sampling work of this device and causes the mass of the sampling box body 1101 to increase, making it inconvenient for the lifting action of the sampling box body 1101. Therefore, a water outlet hole 29 for facilitating the outflow of the redundant water flow is opened on the collecting member 19, aiming to facilitate the outflow of the redundant water flow. When the sampling box body 1101 is lifted, the redundant water flow will be discharged from the water outlet hole 29, reducing the mass of 1101. It should be specifically noted that the sediment collected by this device through the collecting member 19 is deposited at the bottom of the sampling box body 1101, and the height of the sediment accumulation is lower than the water outlet hole 29. Therefore, as the sampling box body 1101 is lifted, the sediment will not be discharged from the water outlet hole 29.

[0048] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water pollution detection sampling device, comprising a water sampling tank (1), characterized in that: The water sample taking tank (1) is provided with a limiting frame (16), the water sample taking tank (1) is provided with a locking column (101), the limiting frame (16) is provided with a locking groove (161), the limiting frame (16) is provided with a guide rod (162), the guide rod (162) is provided with a push rod (111), the push rod (111) is provided with a collecting piece (19), the collecting piece (19) constitutes a sampling box (1101) with an open top and a conical bottom, the limiting frame (16) is provided with a waterproof electric push rod (171), the waterproof electric push rod (171) is connected to the limiting frame (16), the waterproof electric push rod (171) is provided with a fixing frame (11), and the fixing frame (11) is provided with a pull rope (12).

2. The water pollution detection sampling device according to claim 1 is characterized in that: The collecting member (19) is provided with a counterweight block (110).

3. The water pollution detection sampling device according to claim 1 is characterized in that: The waterproof electric push rod (171) is provided with a fixing ring (17), the fixing ring (17) is provided with a telescopic member (18), the telescopic member (18) is connected to an adjacent collecting member (19), and the telescopic member (18) is electrically connected to the waterproof electric push rod (171).

4. The water pollution detection sampling device according to claim 1 is characterized in that: The water sampling tank (1) is provided with a through hole, a closing plate (143) is provided in the through hole, a connecting rod (14) is provided on the closing plate (143), a connecting ring (131) is provided on the connecting rod (14), a tension spring (15) is provided between the connecting ring (131) and the water sampling tank (1), a steel wire rope (13) is provided on the connecting ring (131), and the steel wire rope (13) passes through the fixing frame (11).

5. The water pollution detection sampling device according to claim 4 is characterized in that: The water sample sampling tank (1) is provided with an air hole, and the water sample sampling tank (1) is provided with a slide groove, and a blocking member (142) is slidably connected between the slide grooves, and the blocking member (142) covers the air hole. The connecting ring (131) is rotatably connected with a connecting member (141) through a support ear, and the connecting member (141) is rotatably connected to the adjacent blocking member (142).

6. The water pollution detection sampling device according to claim 1, characterized in that: The collecting member (19) is provided with a first slide groove (241) and a second slide groove (242); the collecting member (19) is provided with a locking member (25); the first slide groove (241) is slidably connected with a positioning member (24); the second slide groove (242) is provided with an unlocking member (27); the unlocking member (27) is pressed and matched with the positioning member (24); the collecting member (19) is provided with a fixing plate (211); the fixing plate (211) is provided with a supporting frame (2) The support frame (2) passes through the fixed plate (211), the support frame (2) is fixedly connected to the unlocking member (27), a return spring (21) is provided between the unlocking member (27) and the fixed plate (211), a latch (22) is provided on the unlocking member (27), an end of the latch (22) contacts the inner wall of the collecting member (19), a linear spring (23) is provided between the latch (22) and the unlocking member (27), and a plug hole (28) is provided on the collecting member (19).

7. The water pollution detection sampling device according to claim 6, characterized in that: The collecting member (19) is provided with a wedge block (26), and the wedge block (26) is located above the locking member (25).

8. The water pollution detection sampling device according to claim 7, characterized in that: The collecting member (19) is provided with a water outlet hole (29).

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