Device for detecting content of heavy metals in mine sewage

Abstract

The invention discloses a device for detecting the content of heavy metals in mine sewage, and particularly relates to a sewage detection technology.The device comprises a detector, a sealing driving structure is arranged on the bottom wall of an inner cavity of a mounting cabinet, the lower end of the sealing driving structure extends to the inner side of an isolation cabinet and is provided with a buckling structure, and the buckling structure is buckled with the upper end of a sample tank; and a sealing assembly is arranged in the bottleneck of the sample tank. According to the device, the sample tank is sealed through structural cooperation, the influence of external air on sewage detection substances is reduced, the assembly is driven to complete sample extraction and convey the sample to detection equipment, the detection precision and efficiency are improved, reliable sample sealing is guaranteed, remaining samples are convenient to store, automatic buckling and sealing of the structure are achieved, and automatic buckling releasing is achieved after sample extraction; the bottle opening is isolated from the outside through multiple designs, parts are promoted to be communicated to facilitate sample extraction, the parts are reset to close the channel after sample extraction, and the detection stability, the operation convenience and the sample storage reliability are integrally improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage detection, in particular to a device for detecting heavy metal content in mine sewage. BACKGROUND

[0002] The technical field of sewage detection includes physical, chemical, biological and other detection methods. The core content is to accurately determine the types and concentrations of various pollutants in sewage through a series of scientific analysis methods. In the modern sewage detection system, physical indicators detect intuitive parameters such as suspended solids, turbidity, color, temperature, etc. Chemical indicators include pH value, chemical oxygen demand, biochemical oxygen demand, total nitrogen, total phosphorus, heavy metals (lead, cadmium, mercury, etc.), petroleum pollutants, and other key parameters. Biological detection focuses on monitoring pathogenic microorganism indicators such as fecal coliform bacteria and total coliform bacteria. These detections can provide key data support for sewage treatment process optimization, pollutant tracing, and environmental law enforcement, which is of great significance to maintaining the health of the water ecosystem and achieving sustainable development goals. Among them, the device for detecting heavy metal content in mine sewage aims to accurately determine the content of heavy metals such as lead, cadmium, mercury, chromium, arsenic, copper, and zinc in mine sewage. It usually uses physical, chemical, or electrochemical methods to complete the detection task, such as using colorimetric method, adding specific chemical reagents to the water sample to form compounds that react with heavy metal ions, and measuring the concentration of heavy metal ions in the water sample by colorimetric reaction; or using anodic stripping voltammetry in electrochemical analysis method, enriching heavy metal ions by electrolysis, and then measuring the dissolution current to achieve detection of heavy metal content.

[0003] The prior art only mentions determining the types and concentrations of pollutants by chemical analysis method, using colorimetric method, electrochemical analysis method, etc. However, it does not consider the influence of external air on the detection material during sample storage, and the actual operation of exposing the sample to air can easily lead to changes in the properties or concentration of the detection material. At the same time, it does not involve the automation and sealing design of sample extraction, manual operation or insufficient sealing can increase external interference, and it does not mention the preservation measures for the remaining sample. After sample extraction, if not properly sealed, it is easy to be contaminated, which will affect the accuracy of the detection results and cannot provide accurate data support for sewage treatment process optimization. SUMMARY

[0004] The main purpose of the present application is to provide a device for detecting heavy metal content in mine sewage, which can effectively solve the problems involved in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the present application is: The application discloses a device for detecting heavy metal content in mine sewage, which comprises a detector, a sample cabinet arranged on one side of the detector, an isolation cabinet arranged on the inner surface of the sample cabinet, a mounting cabinet arranged on the upper end of the sample cabinet, and a sample tank arranged on the inner side of the isolation cabinet.

[0006] Preferably, the water taking assembly comprises a support frame arranged on the inner side of the mounting cabinet and a water pump arranged on the inner wall of the mounting cabinet and connected with the sample pipe of the detector, a hollow winding shaft is rotatably connected to the inner surface of the support frame through a clock spring, a water pipe is woundly connected to the outer surface of the hollow winding shaft and is in communication with the inner cavity of the hollow winding shaft, the other side of the water pipe is in communication with the inner cavity of the sample tank through the sealing driving structure and the buckling structure, and the inner side of the hollow winding shaft is hollow and one side of the hollow winding shaft is fixedly connected with a connecting pipe through rotation.

[0007] Preferably, the sealing driving structure comprises a mounting plate arranged on the bottom wall of the inner cavity of the mounting cabinet, a limiting assembly is arranged on the inner surface of the mounting plate, a gear is rotatably connected to the part of the inner wall of the mounting cabinet below the mounting plate, a threaded pipe one extending to the inner side of the isolation cabinet through the mounting cabinet is fixedly arranged on the inner surface of the gear, a rack engaged with the gear is arranged on the rear part of the inner surface of the mounting cabinet, a rubber wheel driven by a motor is arranged on the rear side of the inner cavity of the mounting cabinet, the outer surface of the rubber wheel is tightly attached to the rack and the gear is driven to slide left and right in the mounting cabinet through friction, and a wire feeder abutting the outer surface of the water pipe is symmetrically arranged on the upper end of the mounting plate.

[0008] Preferably, the limiting assembly comprises a top plate arranged on the upper end of the mounting plate, a plurality of limiting columns are slidingly connected to the lower end of the top plate in a ring shape, the lower end of each of the plurality of limiting columns extends to the inner side of the isolation cabinet through the mounting plate and the mounting cabinet and is fixedly connected with the buckling structure, a compression spring one is sleeved on the lower part of the outer surface of each of the plurality of limiting columns, and the inner surface of the top plate is fixedly connected with the buckling structure.

[0009] Preferably, the buckling structure comprises a closing assembly threadedly connected with the inner surface of the threaded pipe one and a connecting column slidingly connected with the inner surface of the top plate on the inner side of the closing assembly, a buckling assembly fixedly connected with the lower end of each of the plurality of limiting columns and the compression spring one is arranged on the middle part of the outer surface of the connecting column, the lower end of the connecting column extends to the lower part of the buckling assembly through the upper part of the buckling assembly and the outer surface of the connecting column is provided with a communication assembly.

[0010] Preferably, the closing assembly comprises a threaded pipe two threadedly connected with an inner surface of the threaded pipe one, a protruding block fixedly connected with a lower end of the threaded pipe two, and a wedge-shaped block fixedly connected with the protruding block and abutting against the clamping assembly, the threaded pipe two and the protruding block only move up and down under the limitation of the limiting column, the connecting column is slidingly connected with the inner surface of the closing assembly through a spring, and upper ends of a plurality of compression springs one are fixedly connected with the inner cavity of the protruding block.

[0011] Preferably, the clamping assembly comprises a sliding block fixedly connected with the limiting column and the lower end of the compression spring, the outer surface of the sliding block is slidingly connected with the inner surface of the protruding block, the inner surface of the sliding block is slidingly connected with the outer surface of the connecting column, a plurality of clamping jaws are annularly distributed and rotationally connected with the inclined surface part of the wedge-shaped block and abut against the sliding block, the upper part of the clamping jaw close to the sliding block is provided with a tension spring fixedly connected with the sliding block, the outer surface of the sliding block is annularly distributed and provided with a plurality of push rods abutting against the clamping jaw, the side of the push rod away from the clamping jaw is located on the inner side of the sliding block and tightly abuts against the wedge-shaped groove provided on the outer surface of the connecting column, the push rod expands outward under the action of the wedge-shaped groove when the connecting column moves upward, and the push rod contracts inward under the action of the wedge-shaped groove when the connecting column moves downward.

[0012] Preferably, the connecting assembly comprises a limiting plate installed on the lower part of the outer surface of the connecting column, the inner surface of the limiting plate is fixedly connected with an air bag, the air bag is in communication with the cavity between the threaded pipe two and the sliding block through the air pipe, the air bag expands when the space of the cavity is reduced, the lower end of the limiting plate is fixedly connected with a compression spring two, and the lower end of the compression spring two is fixedly connected with a sliding column sleeved on the lower part of the outer surface of the connecting column.

[0013] Preferably, the sealing assembly comprises a fixed plug installed on the neck of the sample tank, a through hole one is provided in the upper end of the fixed plug and in communication with the lower end of the fixed plug, a balloon filled with hydraulic oil is arranged on the upper part of the inner surface of the sealing assembly, a sliding groove in communication with the inner cavity of the balloon is provided in the middle part of the inner surface of the through hole one, a sealing block slidingly connected with the sliding groove through a spring is arranged on the inner surface of the sliding groove, and a through hole two in communication with the lower end is provided in the upper end of the sealing block, the sealing block slides in the sliding groove and makes the through hole two communicate with the through hole one when the balloon is pressed.

[0014] Compared with the prior art, the present application has the following beneficial effects: The application protects the storage of the sample tank by the isolation cabinet in the sample cabinet, realizes the closure of the sample tank by the cooperation of the sealing driving structure and the buckling structure in the installation cabinet, reduces the influence of external air on the sewage detection material, drives the water taking assembly by the sealing driving structure, cooperates with the buckling structure to complete sample extraction and delivery to the detector, improves the detection accuracy and efficiency, and realizes the automatic buckling and sealing of the sample tank bottle mouth by the cooperation of the buckling structure and the sealing assembly on the upper end of the sample tank.

[0015] The application drives the rack to slide in the inner wall of the installation cabinet by the rubber wheel, the rack and the gear meshing promote the rotation of the threaded pipe one, the rotation of the threaded pipe one is converted into the vertical movement of the buckling structure by the limiting action of the limiting assembly on the buckling structure, the closure of the sample tank by the buckling structure is realized, the influence of external air on the sewage detection material is reduced, the water pipe is driven to move downward along the path limited by the limiting assembly and the buckling structure by the relative rotation of the rubber wheel driving the wire feeder, and the sample extraction is completed by cooperating with the hollow winding shaft, finally the sewage detection accuracy and detection efficiency are improved.

[0016] The application drives the connecting column and the buckling assembly to move downward by the cooperation of the threaded pipe one and the threaded pipe two in the sealing assembly and the limiting action of the limiting column, realizes the automatic buckling and sealing of the sample tank bottle mouth by the cooperation of the compression spring one, the wedge-shaped block and the clamping jaw in the buckling assembly, and the interaction of the push rod and the wedge-shaped groove of the connecting column, after sample extraction, the sealing assembly is driven upward by the threaded pipe one, the clamping jaw is released from buckling by the cooperation of the push rod and the wedge-shaped groove, the whole process is automatic and reliable in sealing, further reduces external air interference, and improves detection stability and operation convenience.

[0017] The application realizes the isolation of the bottle mouth and the outside by the cooperation of the limiting plate and the air bag in the communication assembly after the sliding block contacts the sample tank bottle mouth, the air bag is expanded by the space reduction between the sliding block and the threaded pipe two, the ballon in the sealing assembly is extruded by the sliding column, the hydraulic oil pushes the sealing block in the sliding groove to move, the through hole two and the through hole one are communicated, the water pipe is convenient for entering to extract the sample, after the sliding column leaves, the sealing block is reset to close the through hole one under the action of the spring, the remaining sample is protected clean, and the multiple sealing design further improves the detection accuracy and sample storage reliability. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic diagram of the application; Figure 2 It is the cross-sectional structure schematic diagram of the sample cabinet of the application; Figure 3 It is the structure schematic diagram of the water taking assembly of the application; Figure 4Structure diagram of the sealing driving structure of the present application; Figure 5 Structure diagram of the closed assembly of the present application; Figure 6 Structure diagram of the buckling assembly of the present application; Figure 7 Structure diagram of the Figure 4 Structure diagram of the partial structure at A in the present application; Figure 8 Structure diagram of the position relationship between the wedge-shaped block and the clamping jaw of the present application; Figure 9 Structure diagram of the communication assembly of the present application; Figure 10 Structure diagram of the sealing assembly of the present application.

[0019] In the figure: 1, detector; 2, sample cabinet; 21, isolation cabinet; 22, installation cabinet; 3, sample tank; 31, sealing assembly; 311, fixed plug; 312, balloon; 313, sliding groove; 314, sealing block; 315, through hole one; 316, through hole two; 4, water taking assembly; 41, support frame; 42, hollow winding shaft; 43, water pump; 44, water pipe; 5, sealing driving structure; 51, mounting plate; 52, limiting assembly; 521, top plate; 522, limiting column; 523, compression spring one; 53, rubber wheel; 54, wire feeder; 55, rack; 56, gear; 57, threaded tube one; 6, buckling structure; 61, closed assembly; 611, threaded tube two; 612, protruding block; 613, wedge-shaped block; 62, buckling assembly; 621, clamping jaw; 622, tension spring; 623, push rod; 624, wedge-shaped groove; 625, sliding block; 63, communication assembly; 631, air bag; 632, limiting plate; 633, compression spring two; 634, sliding column; 64, connecting column. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects achieved by the present application easy to understand, the present application is further described below in combination with specific embodiments.

[0021] Embodiment one, a device for detecting the content of heavy metals in mine sewage, referring to Figure 1 and Figure 2, including the detector 1, the sample cabinet 2 arranged on one side of the detector 1, the isolation cabinet 21 arranged on the inner surface of the sample cabinet 2, the mounting cabinet 22 arranged on the upper end of the sample cabinet 2, the sample tank 3 arranged on the inner side of the isolation cabinet 21, the sealing drive structure 5 arranged on the bottom wall of the inner cavity of the mounting cabinet 22, the sealing drive structure 5 extending to the inner side of the isolation cabinet 21 and being provided with the buckling structure 6, the buckling structure 6 being buckled with the upper end of the sample tank 3, the sealing assembly 31 being arranged in the bottle neck of the sample tank 3, and the water taking assembly 4 being arranged on one side of the inner cavity of the mounting cabinet 22 and being communicated with the sample tank 3 through the sealing drive structure 5 and the buckling structure 6 and used for conveying sewage to the inner side of the detector 1.

[0022] During the operation of the embodiment, the isolation cabinet 21 in the sample cabinet 2 protects the storage of the sample tank 3, and the sealing drive structure 5 and the buckling structure 6 in the mounting cabinet 22 cooperate to realize the closure of the sample tank 3 by the buckling structure 6, thereby reducing the influence of external air on sewage detection substances; the sealing drive structure 5 drives the water taking assembly 4 to cooperate with the buckling structure 6 to complete sample extraction and conveying to the detector 1, thereby improving detection accuracy and efficiency; the buckling structure 6 is buckled with the upper end of the sample tank 3, and the sealing assembly 31 works, thereby ensuring reliable sample sealing and facilitating the preservation of the remaining sample; the overall structure works cooperatively, thereby improving detection stability, operation convenience and sample preservation reliability.

[0023] Further, referring to Figure 3 , the water taking assembly 4 includes the support frame 41 mounted on the inner side of the mounting cabinet 22 and the water pump 43 mounted on the inner wall of the mounting cabinet 22 and communicated with the sample pipe of the detector 1, the hollow winding shaft 42 is rotatably connected to the inner surface of the support frame 41 by a clock spring, the water pipe 44 is connected to the outer surface of the hollow winding shaft 42 and communicated with the inner cavity of the hollow winding shaft 42, the water pipe 44 is communicated with the inner cavity of the sample tank 3 through the sealing drive structure 5 and the buckling structure 6, and the inner side of the hollow winding shaft 42 is hollow and fixedly connected with the input end of the hollow winding shaft 42 through the rotating connecting pipe on one side.

[0024] Wastewater samples are extracted from sample tank 3 via water pump 43, hollow winding shaft 42, and water pipe 44, and then sent to detector 1 for heavy metal detection. During use, since the hollow winding shaft 42 is hollow and the water pipe 44 is connected to its inner cavity, after the water pipe 44 moves downward and is submerged in the wastewater stored in sample tank 3 under the action of the sealing drive structure 5, the wastewater can enter the inner cavity of the hollow winding shaft 42 through the water pipe 44 by the action of water pump 43, and finally enter the sample chamber of detector 1 through the output end of the water pipe 44, thereby realizing the detection of wastewater. Detector 1 is a conventional heavy metal detection device, which performs spectral analysis on the input wastewater and thereby detects the content and type of heavy metals in mineral wastewater. It is a conventional technical means in the prior art, and its specific structure and operating principle will not be shown or described in detail in this invention.

[0025] In Example 2, based on Example 1, the rubber wheel 53 drives the rack 55 to slide on the inner wall of the mounting cabinet 22. The rack 55 meshes with the gear 56, causing the threaded tube 57 to rotate. Combined with the limiting component 52's limiting effect on the fastening structure 6, the rotation of the threaded tube 57 is converted into the vertical movement of the fastening structure 6, realizing the sealing of the sample container 3 by the fastening structure 6 and reducing the influence of external air on the wastewater detection substance. At the same time, the rubber wheel 53 drives the wire feeder 54 to rotate relative to each other, causing the water pipe 44 to move down along the path limited by the limiting component 52 and the fastening structure 6, and cooperates with the hollow winding shaft 42 to complete the sample extraction, ultimately improving the accuracy and efficiency of wastewater detection.

[0026] For further details, please refer to [link / reference]. Figure 3 and Figure 4 The sealed drive structure 5 includes a mounting plate 51 installed on the bottom wall of the inner cavity of the mounting cabinet 22. A limit component 52 is provided on the inner surface of the mounting plate 51. A gear 56 is rotatably connected to the part of the inner wall of the mounting cabinet 22 located below the mounting plate 51. A threaded tube 57 extending through the mounting cabinet 22 and into the inner side of the isolation cabinet 21 is fixed on the inner surface of the gear 56. A rack 55 that meshes with the gear 56 is provided at the rear of the inner surface of the mounting cabinet 22. A rubber wheel 53 driven by a motor is provided at the rear of the inner cavity of the mounting cabinet 22. The outer surface of the rubber wheel 53 is in close contact with the rack 55 and drives the gear 56 to slide left and right in the mounting cabinet 22 through friction. A wire feeder 54 is symmetrically provided on the upper end of the mounting plate 51 and is attached to the outer surface of the water pipe 44. The two wire feeders 54 are mutually driven by friction wheels, and one of the friction wheels is in close contact with the upper part of the outer surface of the wire feeder 54.

[0027] The rack 55 can be driven to slide in the inner wall of the installation cabinet 22 by the rubber wheel 53, and in the sliding process, the gear 56 can be driven to rotate by the meshing action of the rack 55 and the gear 56, thereby driving the threaded tube one 57 to rotate. In this process, since the threaded tube one 57 and the buckling structure 6 are threadedly connected, and the buckling structure 6 is limited by the limiting assembly 52, the buckling structure 6 can be driven to move downward, and the buckling structure 6 is used to realize the closure of the sample tank 3, reduce the influence of external air on the content and nature of the required detection substance in the sewage in the process of sample extraction, transportation and detection, and improve the detection precision and detection efficiency; Further, in the use process, the rubber wheel 53 is used to drive the wire feeder 54, the two sides of the wire feeder 54 are relatively rotated by the friction force, and then the water pipe 44 is relatively extruded and rotated by the wire feeder 54, so that the water pipe 44 moves downward along the path limited by the limiting assembly 52 and the buckling structure 6, and finally enters the sample tank 3, thereby cooperating with the water pipe 44 and the hollow winding shaft 42 to perform the sample extraction operation.

[0028] Further, referring to Figure 5 The limiting assembly 52 includes a top plate 521 arranged at the upper end of the mounting plate 51, a plurality of limiting columns 522 are slidingly connected in a ring shape at the lower end of the top plate 521, the lower ends of the plurality of limiting columns 522 extend to the inner side of the isolation cabinet 21 through the mounting plate 51 and the installation cabinet 22 and are fixedly connected with the buckling structure 6, the outer surfaces of the plurality of limiting columns 522 are sleeved with compression springs one 523 at the lower part, and the inner surface of the top plate 521 is fixedly connected with the buckling structure 6.

[0029] The top plate 521 is not connected with the mounting plate 51, and the limiting column 522 on the lower side of the top plate 521 slides with the mounting plate 51. When the buckling structure 6 moves downward under the action of the threaded tube one 57, the top plate 521 moves downward synchronously with the buckling structure 6. In this process, the limiting column 522 limits the buckling structure 6 to prevent the buckling structure 6 from rotating with the threaded tube one 57, and then converts the rotation of the threaded tube one 57 into the vertical movement of the buckling structure 6 by the threaded action.

[0030] In the third embodiment, the threaded tube one 57 is threadedly connected with the threaded tube two 611 of the closure assembly 61, and the limiting effect of the limiting column 522 drives the connecting column 64 and the buckling assembly 62 to move downward. The compression spring one 523, the wedge-shaped block 613 and the clamping jaw 621 of the buckling assembly 62 are in close contact, and the interaction of the push rod 623 and the wedge-shaped groove 624 of the connecting column 64 realizes the automatic buckling and sealing of the clamping jaw 621 on the bottle mouth of the sample jar 3. After the sample is extracted, the threaded tube one 57 drives the closure assembly 61 to move upward, and the cooperation of the push rod 623 and the wedge-shaped groove 624 makes the clamping jaw 621 unbuckle. The whole process is automatic and reliable in sealing, further reduces external air interference, and improves the detection stability and operation convenience.

[0031] Further, referring to Figure 4 , Figure 5 and Figure 6 , the buckling structure 6 includes the closure assembly 61 threadedly connected with the inner surface of the threaded tube one 57 and the connecting column 64 slidingly connected with the inner surface of the top plate 521 on the inner side of the closure assembly 61. The outer surface of the connecting column 64 is provided with the buckling assembly 62 fixedly connected with the lower end of the limiting column 522 and the compression spring one 523. The lower end of the connecting column 64 extends through the upper part of the buckling assembly 62 to the lower part of the buckling assembly 62, and the outer surface thereof is provided with the communication assembly 63. The closure assembly 61 is threadedly connected with the threaded tube one 57. The connecting column 64, the buckling assembly 62 on the inner side thereof and the communication assembly 63 at the lower part of the connecting column 64 are driven to move downward by the double action of the threaded tube one 57 and the limiting assembly 52, so that the buckling assembly 62 can be attached above the bottle mouth of the sample jar 3, and thereby drive the buckling assembly 62 to buckle and seal the bottle mouth.

[0032] Further, referring to Figure 5 , Figure 7 and Figure 8 , the closure assembly 61 includes the threaded tube two 611 threadedly connected with the inner surface of the threaded tube one 57. The lower end of the threaded tube two 611 is fixedly connected with the protrusion 612, and the lower end of the protrusion 612 is fixedly connected with the wedge-shaped block 613 attached to the buckling assembly 62. The threaded tube two 611 and the protrusion 612 only move up and down under the limiting of the limiting column 522. The inner surface of the connecting column 64 is slidingly connected with the closure assembly 61 by the spring. The upper ends of the plurality of compression spring one 523 are fixedly connected with the inner cavity of the protrusion 612.

[0033] Further, referring to Figure 6 , Figure 7 and Figure 8The buckling assembly 62 comprises a sliding block 625 fixedly connected with the limiting column 522 and the lower end of the compression spring 523, the outer surface of the sliding block 625 is in sliding connection with the inner surface of the protruding block 612, the inner surface of the sliding block 625 is in sliding connection with the outer surface of the connecting column 64, and the outer surface of the sliding block 625 is rotationally connected with a plurality of clamping jaws 621 abutting the inclined surface part of the wedge-shaped block 613, the upper part of the clamping jaw 621 close to the sliding block 625 is provided with a tension spring 622 fixedly connected with the sliding block 625, and the outer surface of the sliding block 625 is provided with a plurality of push rods 623 abutting the clamping jaw 621, the side, away from the clamping jaw 621, of the push rod 623 is located on the inner side of the sliding block 625 and is in close contact with the wedge-shaped groove 624 formed in the outer surface of the connecting column 64, and when the connecting column 64 moves upward, the push rod 623 expands outward under the action of the wedge-shaped groove 624, and when the connecting column 64 moves downward, the push rod 623 shrinks inward under the action of the wedge-shaped groove 624.

[0034] First, as shown in Figure 8 The upper part of the clamping jaw 621 is triangular, and the lower part is J-shaped, the J-shaped part of the lower part can be buckled at the bottle opening of the sample jar 3, the triangular part of the upper part is abutted with the wedge-shaped block 613 and is elastically connected with the sliding block 625 through the tension spring 622, under the premise, when the push rod 623 extends, the clamping jaw 621 is in an inclined state, and at this time, the relative diameter of the lower side of the clamping jaw 621 is greater than the diameter of the bottle opening of the sample jar 3.

[0035] In summary, in the initial state, that is, the state that the sliding block 625 does not contact the bottle opening, at this time, due to the action of the compression spring 523, the distance between the sliding block 625 and the threaded tube two 611 is maximum, and under the action of the wedge-shaped groove 624, the push rod 623 extends to push the clamping jaw 621 to rotate, and the relative diameter of the lower side of the clamping jaw 621 is greater than the diameter of the bottle opening of the sample jar 3. Under the action of the threaded tube one 57, the threaded tube two 611 drives the protruding block 612 to descend, and simultaneously drives the sliding block 625 and the clamping jaw 621 around the sliding block 625 to descend synchronously by the action of the compression spring 523, until the lower end of the sliding block 625 contacts the bottle opening, at this time, since the sliding block 625 stops moving, but the threaded tube two 611 continues to move downward under the action of the threaded tube one 57, thus the connecting column 64 continues to move downward following the threaded tube two 611 after the spring is completely compressed, at this time, the wedge-shaped groove 624 moves downward relative to the push rod 623, and under the action thereof, the push rod 623 shrinks inward, thereby releasing the limitation on the clamping jaw 621, at the same time, the relative distance between the wedge-shaped block 613 and the clamping jaw 621 is reduced, the triangular part of the clamping jaw 621 is pressed by the wedge-shaped block 613, and thus the lower J-shaped part approaches the bottle opening, and finally is buckled at the bottle opening; After the sample extraction is completed, the threaded tube 57 drives the sealing assembly 61 and the connecting column 64 to move upward. At this time, the sliding block 625 is stationary relative to the bottle mouth due to the action of the compression spring 523. At this time, the connecting column 64 moves upward relative to the push rod 623. The push rod 623 expands outward under the action of the wedge-shaped groove 624, pushes the clamping jaw 621 to rotate, and then releases the buckling of the bottle mouth of the sample tank 3.

[0036] In example four, on the basis of example three, the cooperation of the limiting plate 632 and the air bag 631 in the communication assembly 63 is further used to realize the isolation of the bottle mouth and the outside after the sliding block 625 contacts the bottle mouth of the sample tank 3. The space between the sliding block 625 and the threaded tube 611 is reduced to make the air bag 631 expand. The sliding column 634 is used to extrude the ballon 312 in the sealing assembly 31 to make the hydraulic oil push the sealing block 314 in the sliding groove 313 to move, so that the through hole 316 is communicated with the through hole 315, and the water pipe 44 is convenient to enter the extracted sample. After the sliding column 634 leaves, the sealing block 314 is reset to close the through hole 315 under the action of the spring, so as to protect the remaining sample to be clean, and the multiple sealing design further improves the detection accuracy and the sample storage reliability.

[0037] Further, referring to Figure 9 The communication assembly 63 includes a limiting plate 632 installed on the lower part of the outer surface of the connecting column 64. The inner surface of the limiting plate 632 is fixedly connected with an air bag 631. The air bag 631 is communicated with the cavity between the threaded tube 611 and the sliding block 625 through an air pipe. When the space of the above-mentioned cavity is reduced, the air bag 631 expands. The lower end of the limiting plate 632 is fixedly connected with a compression spring 633. The lower end of the compression spring 633 is fixedly connected with a sliding column 634 sleeved on the lower part of the outer surface of the connecting column 64.

[0038] Further, referring to Figure 10 The sealing assembly 31 includes a fixed plug 311 installed on the neck of the sample tank 3. The upper end of the fixed plug 311 is provided with a through hole 315 communicated with the lower end thereof. The inner surface of the sealing assembly 31 is provided with a ballon 312 filled with hydraulic oil on the upper part thereof. The inner surface of the through hole 315 is provided with a sliding groove 313 communicated with the inner cavity of the ballon 312 on the middle part thereof. The sliding groove 313 is slidably connected with a sealing block 314 through a spring on the inner surface thereof. The upper end of the sealing block 314 is provided with a through hole 316 communicated with the lower end thereof. When the ballon 312 is pressed, the sealing block 314 slides in the sliding groove 313 and makes the through hole 316 communicated with the through hole 315.

[0039] After the sliding block 625 contacts the bottle mouth, the air bag 631 will be at the neck of the sample tank 3. At this time, due to the reduction of the space between the sliding block 625 and the threaded tube 611, the air will be squeezed into the air bag 631 to make the air bag 631 expand, so as to isolate the bottle mouth and the outside; Meanwhile, the sliding column 634 enters the through hole one 315 and extrudes the balloon 312 inside the through hole one 315, the hydraulic oil inside the balloon 312 after being forced enters the sliding groove 313 and pushes the sealing block 314 to move to the opposite side until the through hole two 316 communicates with the through hole one 315, the water pipe 44 enters the sample tank 3 along the connecting column 64, the through hole one 315 and the through hole two 316 to extract the sample stored in the sample tank 3; After the sliding column 634 leaves the balloon 312, the sealing block 314 resets under the spring action of the sealing block 314, the hydraulic oil returns to the balloon 312 and the through hole one 315 is closed by the sealing block 314, facilitating the storage and cleaning of the remaining sample.

[0040] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principles of the present application, various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for detecting heavy metal content in mine wastewater, comprising a detector (1), a sample cabinet (2) disposed on one side of the detector (1), an isolation cabinet (21) disposed on the inner surface of the sample cabinet (2), an installation cabinet (22) disposed on the upper end of the sample cabinet (2), and a sample container (3) disposed inside the isolation cabinet (21), characterized in that: The bottom wall of the inner cavity of the installation cabinet (22) is provided with a sealing driving structure (5), the lower end of the sealing driving structure (5) extends to the inner side of the isolation cabinet (21) and is provided with a buckling structure (6), the buckling structure (6) is buckled with the upper end of the sample tank (3), the sealing assembly (31) is arranged in the bottle neck of the sample tank (3), and one side of the inner cavity of the installation cabinet (22) is provided with a water taking assembly (4) for conveying sewage to the inner side of the detector (1) in communication with the sample tank (3) through the sealing driving structure (5) and the buckling structure (6).

2. The device for detecting the content of heavy metals in mine sewage according to claim 1, characterized in that: The water taking assembly (4) comprises a support frame (41) mounted on the inner side of the installation cabinet (22) and a water pump (43) mounted on the inner wall of the installation cabinet (22) and in communication with the sample pipe of the detector (1), the inner surface of the support frame (41) is rotatably connected with a hollow winding shaft (42) through a clock spring, the outer surface of the hollow winding shaft (42) is woundly connected with a water pipe (44) in communication with the inner cavity thereof, the other side of the water pipe (44) penetrates through the sealing driving structure (5), the buckling structure (6) and the inner cavity of the sample tank (3), and the inner side of the hollow winding shaft (42) is hollow, and one side thereof is fixedly connected with the input end of the hollow winding shaft (42) through a rotating connecting pipe.

3. The device for detecting the content of heavy metals in mine sewage according to claim 2, characterized in that: The sealing driving structure (5) comprises a mounting plate (51) mounted on the bottom wall of the inner cavity of the installation cabinet (22), the inner surface of the mounting plate (51) is provided with a limiting assembly (52), the inner wall of the installation cabinet (22) located on the lower side of the mounting plate (51) is rotatably connected with a gear (56), the inner surface of the gear (56) is fixedly connected with a threaded pipe one (57) extending to the inner side of the isolation cabinet (21) through the installation cabinet (22), the rear part of the inner surface of the installation cabinet (22) is provided with a rack (55) engaged with the gear (56), the rear side of the inner cavity of the installation cabinet (22) is provided with a rubber wheel (53) driven by a motor, the outer surface of the rubber wheel (53) is tightly attached to the rack (55) and drives the gear (56) to slide left and right in the installation cabinet (22) through friction, and the upper ends of the mounting plate (51) are symmetrically provided with line feeders (54) attached to the outer surface of the water pipe (44), the two line feeders (54) are driven by friction wheels and one of the friction wheels is tightly attached to the upper part of the outer surface of the line feeder (54).

4. The device for detecting the content of heavy metals in mine sewage according to claim 3, characterized in that: The limiting assembly (52) comprises a top plate (521) arranged on the upper end of the mounting plate (51), a plurality of limiting columns (522) are slidingly connected in an annular distribution at the lower end of the top plate (521), the lower ends of the plurality of limiting columns (522) extend to the inner side of the isolation cabinet (21) through the mounting plate (51) and the installation cabinet (22) and are fixedly connected with the buckling structure (6), the lower parts of the outer surfaces of the plurality of limiting columns (522) are sleeved with compression springs one (523), and the inner surface of the top plate (521) is fixedly connected with the buckling structure (6).

5. The device for detecting the content of heavy metals in mine sewage according to claim 4, characterized in that: The buckle structure (6) includes a closing assembly (61) threadedly connected with the inner surface of the threaded pipe one (57) and a connecting column (64) slidably connected with the inner surface of the top plate (521) inside the closing assembly (61), the outer surface of the connecting column (64) is provided with a buckle assembly (62) fixedly connected with a plurality of limiting columns (522) and lower ends of compression springs one (523), and the lower end of the connecting column (64) extends through the upper part of the buckle assembly (62) to the lower part of the buckle assembly (62) and is provided with a communication assembly (63) on the outer surface.

6. The device for detecting the content of heavy metals in mine sewage according to claim 5, characterized in that: The closing assembly (61) includes a threaded pipe two (611) threadedly connected with the inner surface of the threaded pipe one (57), the lower end of the threaded pipe two (611) is fixedly connected with a protrusion (612), the lower end of the protrusion (612) is fixedly connected with a wedge block (613) abutting the buckle assembly (62), the threaded pipe two (611) and the protrusion (612) only move up and down under the limitation of the limiting column (522), the connecting column (64) is slidably connected with the inner surface of the closing assembly (61), and the upper ends of the plurality of compression springs one (523) are fixedly connected with the inner cavity of the protrusion (612).

7. The device for detecting the content of heavy metals in mine sewage according to claim 6, characterized in that: The buckle assembly (62) includes a sliding block (625) fixedly connected with the limiting column (522) and the lower end of the compression spring one (523), the outer surface of the sliding block (625) is slidably connected with the inner surface of the protrusion (612), the inner surface of the sliding block (625) is slidably connected with the outer surface of the connecting column (64), a plurality of clamping jaws (621) abutting the inclined surface part of the wedge block (613) are rotationally connected with the outer surface of the sliding block (625) in a ring shape, a stretching spring (622) fixedly connected with the sliding block (625) is arranged on the upper part of the side of the clamping jaw (621) close to the sliding block (625), a plurality of push rods (623) abutting the clamping jaw (621) are arranged on the outer surface of the sliding block (625) in a ring shape, the side of the push rod (623) away from the clamping jaw (621) is located inside the sliding block (625) and closely abuts a wedge-shaped groove (624) formed on the outer surface of the connecting column (64), when the connecting column (64) moves upward, the push rod (623) expands outward under the action of the wedge-shaped groove (624), and when the connecting column (64) moves downward, the push rod (623) contracts inward under the action of the wedge-shaped groove (624).

8. The device for detecting the content of heavy metals in mine sewage according to claim 5, characterized in that: The communication assembly (63) includes a limiting plate (632) mounted on the lower part of the outer surface of the connecting column (64), the inner surface of the limiting plate (632) is fixedly connected with an air bag (631), the air bag (631) is in communication with the cavity between the threaded pipe two (611) and the sliding block (625) through an air pipe, the air bag (631) expands when the space of the above-mentioned cavity is reduced, the lower end of the limiting plate (632) is fixedly connected with a compression spring two (633), and the lower end of the compression spring two (633) is fixedly connected with a sliding column (634) sleeved on the lower part of the outer surface of the connecting column (64).

9. The device for detecting the content of heavy metals in mine sewage according to claim 1, characterized in that: The sealing assembly (31) comprises a fixed plug (311) installed at the bottle neck of the sample tank (3), an upper end of the fixed plug (311) is provided with a through hole (315) in communication with a lower end thereof, an inner surface of the sealing assembly (31) is provided with a balloon (312) filled with hydraulic oil at an upper portion, a sliding groove (313) is formed in the inner surface of the through hole (315) at a middle portion and is in communication with an inner cavity of the balloon (312), a sealing block (314) is slidably connected to the inner surface of the sliding groove (313) through a spring, a through hole (316) is formed in the upper end of the sealing block (314) and is in communication with the lower end, and the sealing block (314) slides in the sliding groove (313) and makes the through hole (316) communicate with the through hole (315) when the balloon (312) is pressed.

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