Sampling equipment for water environment treatment

Abstract

The invention relates to the field of water body sampling, in particular to sampling equipment for water environment governance, which comprises a sampling mechanism, a force storage mechanism is movably connected in the sampling mechanism, a floating mechanism is arranged on the outer wall of the sampling mechanism, and a trigger mechanism and a positioning mechanism are arranged at the top of the sampling mechanism; the sampling mechanism comprises a sampling box, the force storage mechanism comprises a piston arranged in the sampling box in a sliding mode, and the top of the piston is fixedly connected with a sliding rod. The device can achieve rapid sampling at the specified depth, the sampling efficiency is improved, meanwhile, a water body in the central area of river water on a bridge can be sampled, a running water sample can be obtained, and the sampling efficiency is improved. According to the device, water is directly sampled from water below the water surface, floating objects on the water surface are prevented from being brought into the device, the device has the same sampling depth every time, a good water sample can be obtained, the water taking speed of the device can be rapidly increased through the arrangement of the force storage mechanism, a water pumping mode is directly adopted for sampling, and the sampling efficiency is higher compared with water inflow sampling.

Description

Technical Field

[0001] The present invention relates to the field of water sampling, and in particular to a sampling device for water environment treatment. Background Art

[0002] Water environment treatment involves the comprehensive management process of water resources, water environment, and water ecology, aiming to protect and improve water quality. Among the water pollution caused by human production activities, the water pollution caused by industry is the most serious. For example, industrial wastewater contains many pollutants and has a complex composition. It is not only difficult to purify in water but also difficult to treat. Industrial wastewater is the most important reason for water pollution caused by industrial pollution. During the process of water environment treatment, it is necessary to detect the water body in the river, and it is necessary to sample the river water before detection.

[0003] During the process of water environment treatment, it is necessary to sample the water body in the river. When the existing sampling device is put into the water during sampling, it is easy to bring floating objects on the water surface into the sample. The water quality sampling device is not convenient to control the sampling depth, and when taking water, the water slowly flows into the sampler, and its water intake speed is slow. Therefore, we design a sampling device for water environment treatment. Summary of the Invention

[0004] In view of the problems of difficult control of sampling depth and slow sampling speed in the above or existing technologies, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a sampling device for water environment treatment.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A sampling device for water environment treatment, including a sampling mechanism, a power storage mechanism is movably connected inside the sampling mechanism, a floating mechanism is provided on the outer wall of the sampling mechanism, and a triggering mechanism and a positioning mechanism are provided on the top of the sampling mechanism; the sampling mechanism includes a sampling box. The power storage mechanism includes a piston slidably arranged inside the sampling box. A sliding rod is fixedly connected to the top of the piston. The sliding rod is respectively provided with a first side groove and a second side groove from top to bottom. A first spring is fixedly connected between the piston and the sampling box. The floating mechanism includes a guiding groove opened on the outer wall of the sampling box. A floating ring is sleeved on the outer wall of the sampling box. An inclined surface is opened at the top of the inner wall of the floating ring. The inner wall of the floating ring is attached to the guiding groove through a sliding bead.

[0007] As a preferred solution of the sampling device for water environment treatment of the present invention, wherein: the guiding groove includes a vertical groove and an arc groove. The number of the guiding grooves is multiple, and the multiple guiding grooves are distributed in a circular array on the periphery of the sampling box.

[0008] As a preferred embodiment of the sampling device for water environment treatment of the present invention, wherein: the triggering mechanism includes a first sliding frame and a second sliding frame slidably connected to the top of the sampling box, the first sliding frame and the second sliding frame are connected by a second spring, the first sliding frame and the second sliding frame are respectively fixedly connected with a first insertion rod and a second insertion rod, the first sliding frame and the second sliding frame are respectively fixedly connected with a first driving rod and a second driving rod, and receiving surfaces are respectively formed at the bottoms of the first driving rod and the second driving rod.

[0009] As a preferred embodiment of the sampling device for water environment treatment of the present invention, wherein: the first sliding frame and the second sliding frame are slidably connected, the first insertion rod and the second insertion rod are both in contact with the inner wall of the first side groove, and the receiving surface is adapted to the inclined surface.

[0010] As a preferred embodiment of the sampling device for water environment treatment of the present invention, wherein: the sampling mechanism further includes a counterweight ring fixedly connected to the bottom of the sampling box, a sampling pipe fixedly connected to the bottom of the sampling box, the bottom inner wall of the sampling box is in a funnel shape, and a hood-shaped filter screen is fixedly connected to one side of the sampling box inner wall close to the sampling pipe.

[0011] As a preferred embodiment of the sampling device for water environment treatment of the present invention, wherein: the sampling pipe is located at the lowest position of the bottom inner wall of the sampling box, the cross section of the hood-shaped filter screen is in a "C" shape, and the sampling pipe is located inside the counterweight ring.

[0012] As a preferred embodiment of the sampling device for water environment treatment of the present invention, wherein: the sampling mechanism further includes an air vent and a plugging hole opened on the sampling box, a plugging plate is slidably connected in the plugging hole, an elastic arc piece is fixedly connected to the outer wall of the plugging plate, a dragging main rope is fixedly connected to the sliding rod, and a dragging auxiliary rope is fixedly connected to the floating ring.

[0013] As a preferred embodiment of the sampling device for water environment treatment of the present invention, wherein: the plugging hole is adapted to the plugging plate, and the elastic arc piece is adapted to the inclined surface on the floating ring.

[0014] As a preferred embodiment of the sampling device for water environment treatment of the present invention, wherein: the positioning mechanism includes a top cover fixedly connected to the top of the sampling box, limiting holes corresponding to the first sliding frame and the second sliding frame are opened on the top cover, sliding columns are slidably connected to the inner walls of the two limiting holes, the two sliding columns are respectively fixedly connected to the first sliding frame and the second sliding frame, a driving plate is rotatably connected to the top of the top cover, a resisting surface and a positioning groove are respectively opened on the driving plate corresponding to the sliding columns, and a placing groove is opened on one side of the driving plate close to the resisting surface.

[0015] As a preferred solution of the sampling device for water environment treatment of the present invention, the top cover is respectively slidably connected to the first driving rod and the second driving rod, the contact surface is arc-shaped, and the contact surface fits the outer wall of the sliding column.

[0016] Beneficial effects of the sampling device for water environment treatment of the present invention: The device can achieve rapid sampling at a specified depth, improve the sampling efficiency, and at the same time can sample the water body in the central area of the river on the bridge to obtain a live water sample; Sampling is directly carried out from the water body below the water surface to avoid bringing floating objects on the water surface. The device has the same sampling depth each time, and a better water sample can be obtained. The setting of the energy storage mechanism can significantly improve the water intake speed of the device. Sampling is directly carried out by pumping, and the sampling efficiency is higher compared to water body inflow sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall structure of the sampling device for water environment treatment.

[0019] Figure 2 It is a schematic diagram of the internal structure of the sampling box of the sampling device for water environment treatment.

[0020] Figure 3 For Figure 2 The enlarged view at A in

[0021] Figure 4 It is a sectional view of the sampling device for water environment treatment.

[0022] Figure 5 It is a schematic diagram of the positioning mechanism of the sampling device for water environment treatment.

[0023] Figure 6 It is a schematic diagram of the trigger mechanism of the sampling device for water environment treatment.

[0024] Figure 7 It is a schematic diagram of a partial structure of the trigger mechanism of the sampling device for water environment treatment.

[0025] Figure 8 It is a schematic diagram of the driving plate of the sampling device for water environment treatment.

[0026] In the figure: 100, sampling mechanism; 101, sampling box; 102, counterweight ring; 103, sampling pipe; 104, hood-shaped filter screen; 105, air vent hole; 106, plugging hole; 107, plugging plate; 108, elastic arc piece; 109, main dragging rope; 110, auxiliary dragging rope; 200, energy storage mechanism; 201, piston; 202, sliding rod; 203, first side groove; 204, second side groove; 205, first spring; 300, floating mechanism; 301, guiding groove; 302, floating ring; 303, inclined plane; 304, sliding bead; 301a, vertical groove; 302b, arc groove; 400, triggering mechanism; 401, first sliding frame; 402, second sliding frame; 403, second spring; 404, first plugging rod; 405, second plugging rod; 406, first driving rod; 407, second driving rod; 408, receiving surface; 500, positioning mechanism; 501, top cover; 502, limiting hole; 503, sliding column; 504, driving plate; 505, contact surface; 506, positioning groove; 507, placement groove. Specific implementation mode

[0027] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the specific implementation mode of the present invention will be described in detail below with reference to the accompanying drawings of the specification.

[0028] Example 1, refer to Figures 1 to 6 , which is the first embodiment of the present invention. This embodiment provides a sampling device for water environment treatment, which can achieve rapid sampling at a specified depth. It includes a sampling mechanism 100, an energy storage mechanism 200 is movably connected inside the sampling mechanism 100, a floating mechanism 300 is arranged on the outer wall of the sampling mechanism 100, and a triggering mechanism 400 and a positioning mechanism 500 are arranged on the top of the sampling mechanism 100; the sampling mechanism 100 includes a sampling box 101; the energy storage mechanism 200 includes a piston 201 slidably arranged inside the sampling box 101, a sliding rod 202 is fixedly connected to the top of the piston 201, the sliding rod 202 is respectively provided with a first side groove 203 and a second side groove 204 from top to bottom, and a first spring 205 is fixedly connected between the piston 201 and the sampling box 101.

[0029] Among them, refer to Figures 1 to 4, the setting of the sampling mechanism 100 can store and retrieve river water, facilitating the preservation of samples. The setting of the energy storage mechanism 200 can pump river water into the sampling mechanism 100. The setting of the floating mechanism 300 can limit the sampling mechanism 100, ensuring that when the sampling mechanism 100 is on the water, the water inlet end faces downward under the action of gravity, and the water inlet end being below the water surface can effectively extract the water sample below the water surface, achieving the effect of depth-fixed sampling, while avoiding the inhalation of floating impurities on the water surface. The energy storage mechanism 200 discharges the air inside the sampling mechanism 100 before sampling. When the sampling mechanism 100 enters the water, the energy storage mechanism 200 is triggered by the trigger mechanism 400 and starts to drive the river water into the sampling mechanism 100, achieving the effect of water intake. The setting of the positioning mechanism 500 limits the sampling mechanism 100 after sampling, facilitating the transfer of the water inside the sampling mechanism 100 into a designated sampling bottle.

[0030] The floating mechanism 300 includes a guiding groove 301 opened on the outer wall of the sampling box 101. A floating ring 302 is sleeved on the outer wall of the sampling box 101. The top of the inner wall of the floating ring 302 is provided with an inclined surface 303. The inner wall of the floating ring 302 is attached to the guiding groove 301 through a sliding bead 304. The guiding groove 301 includes a vertical groove 301a and an arc groove 302b. The number of guiding grooves 301 is multiple, and the multiple guiding grooves 301 are distributed in a circular array on the periphery of the sampling box 101.

[0031] More, refer to Figures 1 to 4 , the setting of the guiding groove 301 can limit the floating ring 302. During sampling, the floating ring 302 is placed at the bottom of the guiding groove 301. When the sampling box 101 and the floating ring 302 fall on the water surface simultaneously, the density of the sampling box 101 is greater than that of water, so it descends under the action of gravity. Since the density of the floating ring 302 is less than that of water, it rises relative to the sampling box 101. The setting of the arc groove 302b can slightly block the movement of the floating ring 302, delaying the movement speed of the floating ring 302, so that the floating ring 302 can only squeeze the trigger mechanism 400 when the sampling end of the sampling box 101 reaches the designated position, ensuring the sampling depth. The slow reset of the floating ring 302 ensures that when the sampling box 101 is in a vertical state, the sliding bead 304 inside the floating ring 302 enters the vertical groove 301a. At this time, the gravitational potential energy generated by the sampling box 101 is vertically downward, and the buoyancy generated by the floating ring 302 is vertically upward, facilitating the floating ring 302 to generate a greater impact to drive the trigger mechanism 400.

[0032] The sampling mechanism 100 further includes a counterweight ring 102 fixedly connected to the bottom of the sampling box 101. The counterweight ring 102 is made of stainless steel. The stainless steel counterweight ring 102 can avoid rusting during use. The counterweight ring 102 is adhesively connected to the sampling box 101. A sampling pipe 103 is fixedly connected to the bottom of the sampling box 101. The sampling pipe 103 is located at the center of the bottom of the sampling box 101, which can enable the sampling box 101 to extract the water body directly below it during sampling. The bottom inner wall of the sampling box 101 is in a funnel shape, which can preferentially drain the heavier water impurities during drainage. A hood-shaped filter screen 104 is fixedly connected to one side of the inner wall of the sampling box 101 near the sampling pipe 103 to prevent large impurities from entering the interior of the sampling box 101. The hood-shaped filter screen 104 is made of stainless steel to avoid rusting during use and affecting sampling. The sampling pipe 103 is located at the lowest point of the bottom inner wall of the sampling box 101. The cross-section of the hood-shaped filter screen 104 is in a "C" shape. The sampling pipe 103 is located inside the counterweight ring 102, which can provide lateral protection for the sampling pipe 103 and prevent the sampling pipe 103 from being knocked during use.

[0033] The sampling mechanism 100 further includes an air vent hole 105 and a plugging hole 106 opened on the sampling box 101. A plugging plate 107 is slidably connected in the plugging hole 106. An elastic arc piece 108 is fixedly connected to the outer wall of the plugging plate 107. A dragging main rope 109 is fixedly connected to the sliding rod 202. A dragging auxiliary rope 110 is fixedly connected to the floating ring 302. The plugging hole 106 is adapted to the plugging plate 107, and the elastic arc piece 108 is adapted to the inclined surface 303 on the floating ring 302.

[0034] Further, referring to Figures 1 to 3 , the setting of the air vent hole 105 can effectively connect the air inside the sampling box 101 with the external air. When the piston 201 is located at the top of the air vent hole 105, the water inside the sampling box 101 flows out under the action of gravity, which is convenient for sub-packaging the sampled water. The setting of the plugging hole 106 and the plugging plate 107 can block the air vent hole 105 and prevent external water from entering the interior of the sampling box 101 during use. The setting of the elastic arc piece 108 can limit the plugging plate 107, and at the same time, the buoyancy of the floating ring 302 can be used to block the air vent hole 105.

[0035] In summary, during water sampling, the energy storage mechanism 200 is activated under the trigger of the trigger mechanism 400, driving the river water to enter the interior of the sampling mechanism 100 to complete the river water sampling. The setting of the positioning mechanism 500 can limit the sampling mechanism 100 after sampling is completed, which is convenient for sub-packaging the water inside the sampling mechanism 100 into the required sampling bottles, facilitating subsequent detection procedures.

[0036] Example 2, referring to Figures 1 to 8, which is the second embodiment of the present invention. The difference from the previous embodiment is the trigger mechanism 400. This embodiment provides a trigger mechanism 400 for a sampling device for water environment management, which solves the problem of triggering the power storage mechanism 200. It includes a first slide 401 and a second slide 402 slidably connected to the top of the sampling box 101, and the first slide 401 and the second slide 402 are connected by a second spring 403. The first slide 401 and the second slide 402 are respectively fixedly connected with a first plug-in rod 404 and a second plug-in rod 405, and the first slide 401 and the second slide 402 are respectively fixedly connected with a first driving rod 406 and a second driving rod 407, and the first driving rod 406 and the second driving rod 407 are both provided with a receiving surface 408 at the bottom.

[0037] Among them, reference Figures 2 to 6 The setting of the first slide 401 and the second slide 402 can effectively drive the first plug rod 404 and the second plug rod 405 to move. When the first plug rod 404 and the second plug rod 405 move, the fixation and release of the slide rod 202 can be changed. The second spring 403 is located between the first slide 401 and the second slide 402. When the first slide 401 and the second slide 402 move relative to each other, the second spring 403 will be driven to stretch. After the second spring 403 stretches, elastic potential energy will be accumulated. The elastic potential energy generated by the second spring 403 will drive the first slide 401 and the second slide 402 to reset. The setting of the receiving surface 408 can effectively receive the impact from the floating ring 302 to ensure that the floating ring 302 can drive the first drive rod 406 and the second drive rod 407 to translate.

[0038] The first slide 401 is slidably connected to the second slide 402, and the first plug-in rod 404 and the second plug-in rod 405 are both fitted with the inner wall of the first side groove 203, which can effectively limit the slide 202 and ensure that the slide 202 remains in a fixed state before the device falls into the water. The receiving surface 408 is adapted to the inclined surface 303, and the inclined surface 303 located on the floating ring 302 can contact the receiving surface 408 during the movement of the floating ring 302 to contact the receiving surface 408. When the receiving surface 408 is contacted, it can drive the corresponding first drive rod 406 and the second drive rod 407 to move.

[0039] The rest of the structure is the same as that of Example 1.

[0040] In summary, the setting of the energy storage mechanism 200 can ensure that the sampling device stores elastic potential energy before sampling. When the elastic potential energy is released by the triggering mechanism 400, the inside of the sampling box 101 is in a negative pressure state, thereby completing the water intake work. The settings of the first carriage 401 and the second carriage 402 in the triggering mechanism 400 can effectively drive the movement of the first insertion rod 404 and the second insertion rod 405. When the first insertion rod 404 and the second insertion rod 405 move, the fixing and release of the sliding rod 202 can be changed. The triggering mechanism 400 is triggered by the buoyancy of the floating ring 302.

[0041] Embodiment 3. Refer to Figures 1 to 8 , which is the third embodiment of the present invention. Different from the previous embodiment is the positioning mechanism 500. This embodiment provides a positioning mechanism 500 for a sampling device used in water environment treatment, which solves the problem of liquid drainage of the sampling box 101. It includes a top cover 501 fixedly connected to the top of the sampling box 101. Limiting holes 502 are opened on the top cover 501 corresponding to the first carriage 401 and the second carriage 402. Slide columns 503 are slidably connected to the inner walls of the two limiting holes 502. The two slide columns 503 are respectively fixedly connected to the first carriage 401 and the second carriage 402. A driving plate 504 is rotatably connected to the top of the top cover 501. A contact surface 505 and a positioning groove 506 are respectively opened on the driving plate 504 corresponding to the slide columns 503. A placement groove 507 is opened on one side of the driving plate 504 close to the contact surface 505.

[0042] Furthermore, refer to Figures 4 to 8 , the setting of the top cover 501 can protect the first carriage 401 and the second carriage 402. Both ends of the limiting hole 502 are arc-shaped, and the arc-shaped ends can better fit the inner wall of the slide column 503. The cross-section of the slide column 503 is "T"-shaped, and the outer wall of the slide column 503 fits the inner wall of the limiting hole 502. The driving plate 504 is made of stainless steel. The driving plate 504 needs sufficient strength to contact the slide column 503 during rotation. During the rotation of the driving plate 504, the contact surface 505 fits the outer wall of the slide column 503, thereby driving the slide column 503 to translate. The two translated slide columns 503 drive the corresponding first carriage 401 and the second carriage 402 to move. When the first carriage 401 and the second carriage 402 move, they will drive the first insertion rod 404 and the second insertion rod 405 to move away from the slide column 503, and at the same time drive the second spring 403 to stretch. The stretching of the second spring 403 accumulates elastic potential energy, and the elastic potential energy is convenient for driving the subsequent reset of the first carriage 401 and the second carriage 402. Continuing to rotate the driving plate 504 can drive the slide column 503 into the placement groove 507. When the slide column 503 enters the placement groove 507, it can be limited, and at this time, the first insertion rod 404 and the second insertion rod 405 are limited.

[0043] The top cover 501 is slidably connected to the first drive rod 406 and the second drive rod 407 respectively. The contact surface 505 is arc-shaped, and the contact surface 505 is attached to the outer wall of the sliding column 503.

[0044] All the other structures are the same as those in Embodiment 2.

[0045] When sampling, stand on the bridge and move the floating ring 302 to the bottom of the guiding groove 301. Hold the main dragging rope 109 and the auxiliary dragging rope 110 with hands and leave some slack of the rope body to avoid insufficient rope body affecting the throwing of the sampling box 101. Throw the sampling box 101 into the river. When the sampling box 101 and the floating ring 302 land on the water surface at the same time, the density of the sampling box 101 is greater than that of water and it descends under the action of gravity. Since the density of the floating ring 302 is less than that of water, it rises relative to the sampling box 101. During the descending process of the sampling box 101, under the action of the counterweight ring 102, the sampling tube 103 preferentially faces downward. Under the buoyancy of the floating ring 302, the sampling box 101 gradually tends to be in a vertical state from an inclined state. When the sampling box 101 is in a vertical state, the sliding beads 304 inside the floating ring 302 enter the vertical groove 301a from the arc groove 302b. At this time, the gravitational potential energy generated by the sampling box 101 is vertically downward, and the buoyancy generated by the floating ring 302 is vertically upward. The stroke of the vertical groove 301a facilitates the floating ring 302 to obtain greater kinetic energy to drive the trigger mechanism 400; When the floating ring 302 impacts the trigger mechanism 400, the inclined surface 303 contacts the receiving surfaces 408 on the first driving rod 406 and the second driving rod 407, driving the first driving rod 406 and the second driving rod 407 to move towards the sliding column 503, and driving the first carriage 401 and the second carriage 402 to slide. The first carriage 401 and the second carriage 402 drive the first plugging rod 404 and the second plugging rod 405 to move away from the sliding rod 202, causing the first plugging rod 404 and the second plugging rod 405 to disengage from the first side groove 203. At the same time, the elastic potential energy of the first spring 205 is released, driving the piston 201 to reset. When the piston 201 resets, the bottom of the sampling box 101 is in a negative pressure state, and the external river water enters the interior of the sampling box 101 through the sampling pipe 103. The hood-shaped filter screen 104 filters out large particle impurities in the river water. After sampling is completed, pulling the main towing rope 109 and the auxiliary towing rope 110 can recover the sampling box 101. During the recovery process, only the sampling pipe 103 remains open at the bottom of the sampling box 101, and external air cannot enter the sampling box 101, thus preventing the water flow inside the sampling box 101 from flowing out. When only towing the main towing rope 109, the sampling box 101 can be shaken and lifted around the piston 201. Because there will be multiple stops after lifting when recovering the rope body, the generated inertia will cause the sampling box 101 to shake slightly. At this time, part of the water inside the sampling box 101 will be discharged. Discharging the water at the bottom of the hood-shaped filter screen 104 can better remove large impurities in the sample. When the floating ring 302 fails to activate the trigger mechanism 400, pulling the auxiliary towing rope 110 can manually activate the trigger mechanism 400; After the recovery of the sampling box 101 is completed, the water body inside it needs to be sub-packaged into the test bottles. At this time, move the sliding column 503 upward so that the second side groove 204 coincides with the first plugging rod 404 and the second plugging rod 405. At this time, the first plugging rod 404 and the second plugging rod 405 enter the second side groove 204, thereby limiting the sliding column 503. Rotate the driving plate 504 so that the contact surface 505 fits against the outer wall of the sliding column 503. At this time, the limiting of the sliding column 503 can be completed. At this time, the piston 201 is above the air vent hole 105, and the floating ring 302 has separated from the blocking plate 107 and the elastic arc piece 108 under the action of gravity. Moving the blocking plate 107 upward can prevent external air from entering the interior of the sampling box 101, causing the sampling box 101 to stop draining. Moving it downward can allow external air to enter the interior of the sampling box 101, causing the sampling box 101 to drain, thereby achieving the purpose of sub-packaging; When it is necessary to disengage the first insertion rod 404 and the second insertion rod 405 from the second side groove 204, rotate the drive plate 504. When the drive plate 504 rotates, the contact surface 505 fits against the outer wall of the sliding column 503, thereby driving the sliding column 503 to translate. The two translated sliding columns 503 drive the corresponding first sliding frame 401 and the second sliding frame 402 to move. When the first sliding frame 401 and the second sliding frame 402 move, they will drive the first insertion rod 404 and the second insertion rod 405 to move away from the sliding column 503, and at the same time drive the second spring 403 to stretch. The stretching of the second spring 403 accumulates elastic potential energy. Continuing to rotate the drive plate 504 can drive the sliding column 503 into the placement groove 507. When the sliding column 503 enters the placement groove 507, it can be limited, and at this time, the first insertion rod 404 and the second insertion rod 405 are limited. When the next sampling is required; press down the sliding column 503. During the downward movement of the sliding column 503, the first spring 205 is stretched and accumulates elastic potential energy. At this time, the piston 201 is located at the bottom of the sampling box 101. When the first side groove 203 at the top of the sliding column 503 coincides with the first insertion rod 404 and the second insertion rod 405, continue to rotate the drive plate 504 to disengage the placement groove 507 and the contact surface 505 from the sliding column 503. The second spring 403 is reset under the action of elastic potential energy, and the first insertion rod 404 and the second insertion rod 405 enter the first side groove 203 under the action of the elastic potential energy of the second spring 403. At this time, the limit of the sliding rod 202 can be completed.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A sampling device for water environment management, characterized in that: It comprises a sampling mechanism (100), wherein a power storage mechanism (200) is movably connected inside the sampling mechanism (100), a floating mechanism (300) is provided on the outer wall of the sampling mechanism (100), and a trigger mechanism (400) and a positioning mechanism (500) are provided on the top of the sampling mechanism (100); The sampling mechanism (100) comprises a sampling box (101); The force storage mechanism (200) comprises a piston (201) slidably arranged inside the sampling box (101), a sliding rod (202) is fixedly connected to the top of the piston (201), the sliding rod (202) is respectively provided with a first side groove (203) and a second side groove (204) from top to bottom, and a first spring (205) is fixedly connected between the piston (201) and the sampling box (101); The floating mechanism (300) comprises a guide groove (301) formed on the outer wall of the sampling box (101); the outer wall of the sampling box (101) is sleeved with a floating ring (302); the top of the inner wall of the floating ring (302) is provided with an inclined surface (303); the inner wall of the floating ring (302) is fitted with the guide groove (301) via a sliding bead (304).

2. The sampling device for water environment management as claimed in claim 1, characterized in that: The guide groove (301) comprises a vertical groove (301a) and an arc groove (302b), and there are a plurality of guide grooves (301), which are distributed in a circular array around the sampling box (101).

3. The sampling device for water environment management as claimed in claim 2, characterized in that: The trigger mechanism (400) comprises a first slide (401) and a second slide (402) which are slidably connected to the top of the sampling box (101); the first slide (401) and the second slide (402) are connected via a second spring (403); the first slide (401) and the second slide (402) are respectively fixedly connected with a first plug-in rod (404) and a second plug-in rod (405); the first slide (401) and the second slide (402) are respectively fixedly connected with a first driving rod (406) and a second driving rod (407); and the first driving rod (406) and the second driving rod (407) are both provided with a receiving surface (408) at the bottom.

4. The sampling device for water environment management as claimed in claim 3, characterized in that: The first slide (401) is slidably connected to the second slide (402), the first plug-in rod (404) and the second plug-in rod (405) are both in contact with the inner wall of the first side groove (203), and the receiving surface (408) is adapted to the inclined surface (303).

5. The sampling device for water environment management as claimed in claim 4, characterized in that: The sampling mechanism (100) further comprises a counterweight ring (102) fixedly connected to the bottom of the sampling box (101); a sampling tube (103) is fixedly connected to the bottom of the sampling box (101); the bottom of the inner wall of the sampling box (101) is bucket-shaped; and a cover-shaped filter screen (104) is fixedly connected to one side of the inner wall of the sampling box (101) close to the sampling tube (103).

6. The sampling device for water environment treatment as claimed in claim 5, characterized in that: The sampling tube (103) is located at the lowest point of the bottom of the inner wall of the sampling box (101); the cross section of the cover-shaped filter (104) is "C"-shaped; and the sampling tube (103) is located inside the counterweight ring (102).

7. The sampling device for water environment management as claimed in claim 6, characterized in that: The sampling mechanism (100) further comprises an air leakage hole (105) and a blocking hole (106) provided on the sampling box (101); a blocking plate (107) is slidably connected inside the blocking hole (106); an elastic arc sheet (108) is fixedly connected to the outer wall of the blocking plate (107); a main dragging rope (109) is fixedly connected to the sliding rod (202); and a secondary dragging rope (110) is fixedly connected to the floating ring (302).

8. The sampling device for water environment treatment as claimed in claim 7, characterized in that: The blocking hole (106) is matched with the blocking plate (107), and the elastic arc sheet (108) is matched with the inclined surface (303) on the floating ring (302).

9. The sampling device for water environment treatment according to claim 7 or 8, characterized in that: The positioning mechanism (500) includes a top cover (501) fixedly connected to the top of the sampling box (101), and the top cover (501) is provided with limit holes (502) corresponding to the first slide (401) and the second slide (402), and the inner walls of the two limit holes (502) are slidably connected with sliding columns (503), and the two sliding columns (503) are respectively fixedly connected to the first slide (401) and the second slide (402), and the top of the top cover (501) is rotatably connected with a driving plate (504), and the driving plate (504) is provided with a contact surface (505) and a positioning groove (506) corresponding to the sliding column (503), and a placement groove (507) is provided on the side of the driving plate (504) close to the contact surface (505).

10. The sampling device for water environment treatment according to claim 9, characterized in that: The top cover (501) is slidably connected to the first drive rod (406) and the second drive rod (407) respectively; the contact surface (505) is arc-shaped; and the contact surface (505) is in contact with the outer wall of the sliding column (503).

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