Environmental pollution detection device

Abstract

The invention discloses an environmental pollution detection device, and belongs to the technical field of underground water pollution detection sampling devices. The environmental pollution detection device comprises a sampling assembly, the sampling assembly comprises a sampling pipe and control valves, a plurality of storage cavities are formed in the sampling pipe along the axis of the sampling pipe, the side face of each storage cavity is at least connected with one control valve, penetrating through grooves are formed in the outer side wall of the sampling pipe in the axis direction of the sampling pipe, and the control valves are all arranged in the first penetrating through grooves. The protection assembly comprises a spring and a baffle, a plurality of second penetrating through grooves are formed in the baffle, the propelling assemblies are evenly arranged in the second penetrating through grooves in the axis direction of the sampling pipe, and when the sampling pipe is lowered into a to-be-sampled water body, the baffle in the protection assembly can extrude the control valve, and components of different water body layers are prevented from being attached to an inlet of the control valve; after the sampling position is reached, the baffle moves upwards, the control valve is opened under the action of the spring, and then sampling is carried out, so that the obtained sample is more accurate and representative.

Description

Technical Field

[0001] The present invention relates to the technical field of groundwater pollution detection and sampling devices, and in particular to an environmental pollution detection device. Background Art

[0002] Groundwater refers to water found in rock pores below the surface. More narrowly, it refers to water in saturated aquifers below the groundwater table. Sampling for water pollution concentration testing involves extracting water samples from contaminated water according to prescribed methods and a specific ratio. By testing and analyzing these samples, we determine the extent of water pollution, the types and contents of pollutants, and other relevant water quality parameters. This information is then used to guide production activities and implement measures to reduce water pollution.

[0003] The traditional groundwater sampling device lowers the sampling tube into the water body to be sampled for single-point sampling. If you want to sample groundwater at different depths, you need to lower the tube and re-fix the device, which is inconvenient to use. The existing groundwater sampling device divides the sampling tube into several storage cavities and sets corresponding control valves on the sides of the corresponding cavities for control. After the sampling tube is lowered into the sampling water body, the control valve is opened to sample the water body. Compared with the traditional method, although the above method can sample samples from different water bodies, there are still certain problems. When the sampling tube is lowered, different pollution layers of water will be attached to the outer wall of the sampling tube and the control valve. When sampling is performed, the different layers of water attached to the control valve will enter the storage cavity first, resulting in the final sample being contaminated and lacking representativeness, which will affect the accuracy of subsequent water body detection. Summary of the Invention

[0004] The purpose of the present invention is to overcome the problems in the prior art and provide an environmental pollution detection device to avoid mixing of samples between different levels and improve the representativeness of the samples taken.

[0005] The present invention provides an environmental pollution detection device, including a sampling component, the sampling component including a sampling tube and a control valve, the sampling tube having a plurality of storage chambers along its axis, each of the storage chambers being connected to at least one control valve on its side, the outer wall of the sampling tube having a first through-groove along its axis, the plurality of control valves being disposed in the first through-groove, the protective component including a spring and a baffle, each of the control valves being fixedly connected to the spring on both vertical sides, the spring being obliquely disposed in the first through-groove and fixedly connected to the outer side of the sampling tube, the baffle being vertically slidably embedded in the first through-groove, the baffle having a plurality of second through-grooves disposed on the baffle, the plurality of second through-grooves being evenly disposed along the axis of the sampling tube, the sidewall of the control valve being in contact with the sidewall of the sampling tube in an initial state, the springs on both sides being in a stretched state and a compressed state respectively, and the baffle blocking the control valve, the advancing component having an output end fixedly connected to the baffle, controlling the baffle to slide vertically up and down along the first through-groove.

[0006] Preferably, the tail end of the control valve is fixedly connected to a connecting pipe, and the connecting pipe includes a sampling part and a connecting part. The sampling part is horizontally inserted on the sampling tube, one end of which is located in the sampling tube, and the other end is fixedly connected to the connecting part. The connecting part is configured as a hose, and the connecting part is fixedly connected to the tail end of the control valve.

[0007] Preferably, a placement groove is provided on the side wall of the sampling tube, the spring is located in the placement groove, and the control valve is completely embedded in the placement groove when under pressure.

[0008] Preferably, an arc-shaped guide groove is provided at the bottom of the baffle. When the baffle blocks the control valve, one side of the control valve is located in the placement groove, and the other side is located in the arc-shaped guide groove.

[0009] Preferably, a plurality of partition plates are horizontally arranged in the sampling tube, and a sealing gasket is sleeved on the outer side of each of the partition plates. The sealing gasket fits tightly with the inner wall of the sampling tube, and the partition plates are covered with a hydrophobic coating.

[0010] Preferably, the sampling tube includes a tube cover, a tube body and a tube bottom, and the tube cover, the tube body and the tube bottom are integrally formed. The tube bottom is truncated cone-shaped, and the small end of the truncated cone faces the water body to be sampled.

[0011] Preferably, the propulsion assembly includes a motor, a gear and a rack, the motor is horizontally arranged at the top of the sampling tube, the motor output shaft is fixedly connected to the gear, one side of the rack is vertically arranged and meshed with the gear, the bottom end of the rack is fixedly connected to the top of the baffle, and the top of the sampling tube is vertically fixedly connected to a telescopic rod, and one end of the telescopic rod is fixedly connected to the side of the rack.

[0012] Preferably, scale lines are provided on the outside of the sampling tube.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: an environmental pollution detection device of the present invention, when sampling, lowers the sampling tube into the water body to be sampled by external drive, in the original state, the side wall of the control valve fits the side wall of the sampling tube, and the springs on both sides are in a stretched state and a compressed state respectively, and the baffle protects the control valve to prevent the control valve inlet from adhering to the components of different water layers when lowering, after the sampling tube is lowered to the set depth, it is lifted by the propulsion assembly, and the set baffle will slide on the first through-hole groove, and as the baffle moves, when the second through-hole is located on the upper side of the control valve, a pair of compressed springs will push the control valve when they need to restore their original position, and the stretched spring will pull the control valve until the control valve is horizontal, at this time, the control valve is opened, and samples of each water layer enter the storage chamber through the corresponding control valve to complete the sampling, thereby making the samples taken more accurate and more representative. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall first-view structure of the present invention.

[0015] Figure 2 It is a partial structural diagram of the present invention.

[0016] Figure 3 This is a schematic diagram of the control valve spring distribution structure during sampling in the present invention.

[0017] Figure 4 This is a schematic diagram of the control valve spring distribution structure when no sampling is performed according to the present invention.

[0018] Figure 5 It is a schematic structural diagram of the baffle and the second through-slot of the present invention.

[0019] Figure 6 It is a schematic diagram of the overall second viewing angle structure of the present invention.

[0020] Explanation of the accompanying symbols: 1. Sampling assembly; 11. Sampling tube; 111. Tube cover; 112. Tube body; 113. Tube bottom; 12. Control valve; 2. First through-groove; 3. Protective assembly; 31. Spring; 32. Baffle; 33. Second through-groove; 4. Propulsion assembly; 41. Motor; 42. Gear; 43. Rack; 5. Connecting tube; 51. Sampling part; 52. Connecting part; 6. Placement groove; 7. Arc-shaped guide groove; 8. Partition plate; 9. Sealing gasket; 10. Scale line. DETAILED DESCRIPTION

[0021] The following is combined with Figures 1 to 6 In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs.

[0022] The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects. "Inside", "outside", "upper", "lower", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in the present invention are not drawn strictly according to the actual scale. The specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only structural schematic diagrams.

[0023] The present invention provides an environmental pollution detection device, such as Figures 1 to 5As shown, it includes a sampling assembly 1, which includes a sampling tube 11 and a control valve 12. The sampling tube 11 is provided with a plurality of storage chambers along its axis. Each storage chamber is connected to at least one control valve 12 on its side. The outer wall of the sampling tube 11 is provided with a through groove along its axis. The plurality of control valves 12 are all arranged in the first through groove 2. The protective assembly 3 includes a spring 31 and a baffle 32. Each control valve 12 is fixedly connected to a spring 31 on both sides vertically. The spring 31 is tilted and arranged in the first through groove 2, and is fixed to the outer side of the sampling tube 11. The baffle 32 is fixedly connected, and the baffle 32 is vertically slidably embedded in the first through groove 2. A plurality of second through grooves 33 are opened on the baffle 32, and the plurality of second through grooves 33 are evenly arranged along the axial direction of the sampling tube 11. In the original state, the side wall of the control valve 12 is in contact with the side wall of the sampling tube 11; and the springs 31 on both sides are in a stretched state and a compressed state, and the baffle 32 blocks the control valve 12, pushing the component 4, and the output end is fixedly connected to the baffle 32, and the control baffle 32 slides up and down in the vertical direction along the first through groove 2.

[0024] The sampling tube 11 is lowered into the water body to be sampled by an external drive. In the original state, the side walls of the control valve 12 are in contact with the side walls of the sampling tube 11, and the springs 31 on both sides are in a stretched state and a compressed state respectively. The baffle 32 protects the control valve 12 to prevent the inlet of the control valve 12 from being attached to the components of different water layers during the lowering. After the sampling tube 11 is lowered to the set depth, it is lifted by the propulsion assembly 4, and the baffle 32 slides on the first through-hole 2. As the baffle 32 moves, when the second through-hole is located above the control valve 12, the pair of compressed springs 31 need to return to their original positions and push the control valve 12. The stretched spring 31 pulls the control valve 12 until the control valve 12 is horizontal. At this time, the control valve 12 is opened, and samples from each water layer enter the storage chamber through the corresponding control valve 12 to complete the sampling, thereby making the sampled samples more accurate and representative. The external drive involved in this embodiment can be a vertically arranged cylinder or other device with a propulsion function.

[0025] Preferably, Figures 2 to 4 As shown, the tail end of the control valve 12 is fixedly connected to a connecting pipe 5, which includes a sampling portion 51 and a connecting portion 52. The sampling portion 51 is horizontally inserted on the sampling tube 11, with one end located in the sampling tube 11 and the other end fixedly connected to the connecting portion 52. The connecting portion 52 is configured as a hose, and the connecting portion 52 is fixedly connected to the tail end of the control valve 12.

[0026] In this embodiment, the control valve 12 only allows external objects to flow into the storage box. The control valve 12 is connected to the storage cavity through the connecting pipe 5. The connecting part 52 is connected to the control valve 12 and is a hose, so that the control valve 12 can be changed in position and embedded in the placement groove 6. The sampling part 51 is a rigid tube. The sampled water flows into the rigid tube through the hose and then flows into the storage cavity. Setting the sampling part 51 as a rigid tube provides partial support for the control valve 12 on the one hand. On the other hand, the rigid tube will not deform and will not cause a gap at the connection with the sampling tube 11, causing the sample to flow into the storage cavity.

[0027] Preferably, Figures 2 to 4 As shown, a placement groove 6 is opened on the side wall of the sampling tube 11, the spring 31 is located in the placement groove 6, and the control valve 12 is completely embedded in the placement groove 6 when under pressure.

[0028] In this embodiment, a placement groove 6 is opened on the sampling tube 11, and the spring 31 is set in the placement groove 6, and the control valve 12 is completely embedded in the connecting part 52 when it is under pressure. The placement groove 6 can temporarily store the control valve 12 and reduce the overall occupied area of the device. The design is more reasonable and convenient and quick to use.

[0029] Preferably, Figures 4 and 5 As shown, an arc-shaped guide groove 7 is provided at the bottom of the baffle 32 . When the baffle 32 blocks the control valve 12 , one side of the control valve 12 is located in the placement groove 6 , and the other side is located in the arc-shaped guide groove 7 .

[0030] In this embodiment, an arc-shaped guide groove 7 is provided at the bottom of the baffle 32, and when the baffle 32 blocks the control valve 12, one side of the control valve 12 is located in the placement groove 6, and the other side is located in the arc-shaped guide groove 7. On the one hand, the arc-shaped guide groove 7 can limit the control valve 12 more stably, and on the other hand, when the horizontal control valve 12 is squeezed to a vertical position, the arc-shaped guide groove 7 can better guide it, thereby enabling the device to operate stably.

[0031] Preferably, Figure 2 As shown, a number of partition plates 8 are horizontally arranged in the sampling tube 11, and a sealing gasket 9 is sleeved on the outside of the several partition plates 8. The sealing gasket 9 fits tightly against the inner wall of the sampling tube 11, and the partition plates 8 are covered with a hydrophobic coating. The sampling tube 11 includes a tube cover 111, a tube body 112 and a tube bottom 113. The tube cover 111, the tube body 112 and the tube bottom 113 are integrally formed. The tube bottom 113 is truncated cone-shaped, and the small end of the truncated cone faces the water to be sampled.

[0032] In this embodiment, the storage area of the sampling tube 11 is divided into several storage cavities by a partition plate 8 and sealed by a sealing gasket 9 to prevent water samples from penetrating through the gaps between adjacent storage cavities. A hydrophobic coating is covered on the surface of the partition plate 8 to prevent samples of different depths from penetrating each other due to capillary action. The tube cover 111, tube body 112 and tube bottom 113 are integrally formed to prevent water samples from mixing into the gaps generated during connection, which is inconvenient to clean. Setting the tube bottom 113 to a truncated cone shape facilitates the insertion of the sampling tube 11 into the water body to be tested and reduces resistance.

[0033] Preferably, Figures 1 to 6 As shown, the propulsion assembly 4 includes a motor 41, a gear 42 and a rack 43. The motor 41 is horizontally arranged at the top of the sampling tube 11. The output shaft of the motor 41 is fixedly connected to the gear 42. The rack 43 is vertically arranged on one side and meshes with the gear 42. The bottom end of the rack 43 is fixedly connected to the top of the baffle 32. A telescopic rod is vertically fixedly connected to the top of the sampling tube 11. One end of the telescopic rod is fixedly connected to the side of the rack 43. A scale line 10 is provided on the outside of the sampling tube 11.

[0034] In this embodiment, the motor 41 is a stepper motor, and the speed is adjusted by the controller to achieve precise positioning of the baffle 32. The motor 41 drives the set gear 42 to rotate, and the rack 43 moves up and down under the meshing action of the gear 42 and the rack 43. The moving rack 43 will drive the baffle 32 to move, thereby completing the protection and deployment of the control valve 12. The above method makes the adjustment distance more accurate, avoids the adjustment speed being too fast and applying too much force to the control valve 12, resulting in the control valve 12 and the connecting part 52 being broken, and the depth of the lowering can be determined by the scale line 10 set on the sampling tube 11.

[0035] The method of using the environmental pollution detection device of the present invention is as follows:

[0036] The sampling tube 11 is lowered to a suitable depth of the water body to be sampled by an external drive. At this time, the motor 41 is turned on to drive the gear 42 to rotate. Under the meshing action of the gear 42 and the rack 43, the rack 43 moves up and down. The moving rack 43 drives the baffle 32 to move. As the baffle 32 moves, when the second through-port is located on the upper side of the control valve 12, the pair of compressed springs 31 need to return to their original positions and push the control valve 12. The stretched spring 31 pulls the control valve 12 until the control valve 12 is horizontal.

[0037] At this time, the control valve 12 is opened, and samples from each water layer enter the storage chamber through the corresponding control valve 12 to complete the sampling. After the sampling is completed, the motor 41 is reversed, and the rack 43 is moved downward under the action of the gear 42 and the rack 43, so that the baffle 32 protects the control valve 12 again, and the sampling tube 11 that has completed the sampling is lifted by external drive to complete the sampling.

[0038] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An environmental pollution detection device, characterized in that: include: A sampling assembly (1) comprises a sampling tube (11) and a control valve (12); the sampling tube (11) is provided with a plurality of storage cavities along its axis, and each storage cavity is connected to at least one control valve (12) on its side; the outer wall of the sampling tube (11) is provided with a first through-groove (2) along its axis, and the plurality of control valves (12) are all arranged in the first through-groove (2); A protection component (3) includes a spring (31) and a baffle (32), each of the control valves (12) is fixedly connected to the spring (31) on both sides in the vertical direction, the spring (31) is tiltedly arranged in the first through-groove (2) and fixedly connected to the outer side of the sampling tube (11), the baffle (32) is vertically slidably embedded in the first through-groove (2), a plurality of second through-grooves (33) are opened on the baffle (32), and the plurality of second through-grooves (33) are evenly arranged along the axial direction of the sampling tube (11), in the original state, the side wall of the control valve (12) is in contact with the side wall of the sampling tube (11), and the springs (31) on both sides are in a stretched state and a compressed state respectively, and the baffle (32) blocks the control valve (12); The propulsion assembly (4) has an output end fixedly connected to the baffle (32) to control the baffle (32) to slide up and down in a vertical direction along the first through slot (2).

2. An environmental pollution detection device according to claim 1, characterized in that: The tail end of the control valve (12) is fixedly connected to a connecting pipe (5), and the connecting pipe (5) comprises a sampling portion (51) and a connecting portion (52). The sampling portion (51) is horizontally inserted into the sampling tube (11), with one end portion located in the sampling tube (11) and the other end fixedly connected to the connecting portion (52). The connecting portion (52) is configured as a hose and is fixedly connected to the tail end of the control valve (12).

3. The environmental pollution detection device according to claim 1, characterized in that: A placement groove (6) is provided on the side wall of the sampling tube (11), the spring (31) is located in the placement groove (6), and the control valve (12) is completely embedded in the placement groove (6) when under pressure.

4. An environmental pollution detection device as claimed in claim 3, characterized in that: An arc-shaped guide groove (7) is provided at the bottom of the baffle (32). When the baffle (32) blocks the control valve (12), one side of the control valve (12) is located in the placement groove (6) and the other side is located in the arc-shaped guide groove (7).

5. The environmental pollution detection device according to claim 1, characterized in that: A plurality of partition plates (8) are horizontally arranged in the sampling tube (11), and a sealing gasket (9) is sleeved on the outer side of each of the partition plates (8). The sealing gasket (9) is tightly fitted to the inner wall of the sampling tube (11), and the partition plates (8) are covered with a hydrophobic coating.

6. The environmental pollution detection device according to claim 1, characterized in that: The sampling tube (11) comprises a tube cover (111), a tube body (112) and a tube bottom (113); the tube cover (111), the tube body (112) and the tube bottom (113) are integrally formed; the tube bottom (113) is truncated cone-shaped, with the small end of the truncated cone facing the water body to be sampled.

7. The environmental pollution detection device according to claim 1, characterized in that: The propulsion assembly (4) comprises a motor (41), a gear (42) and a rack (43); the motor (41) is horizontally arranged at the top end of the sampling tube (11); the output shaft of the motor (41) is fixedly connected to the gear (42); one side of the rack (43) is vertically arranged and meshed with the gear (42); the bottom end of the rack (43) is fixedly connected to the top end of the baffle (32); the top end of the sampling tube (11) is vertically fixedly connected to a telescopic rod, and one end of the telescopic rod is fixedly connected to the side of the rack (43).

8. The environmental pollution detection device according to claim 1, characterized in that: The outside of the sampling tube (11) is provided with scale lines (10).

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