Sampling mechanism for sewage discharge detection and sampling method thereof

Abstract

The invention discloses a sampling mechanism for sewage discharge detection, and belongs to the technical field of sewage detection, the sampling mechanism comprises a bottom plate and a treatment bin fixedly connected to the bottom plate, and the lower surface of the bottom plate is rotatably connected with moving wheels; a pumping piece for sewage sampling is arranged on one side of the treatment bin; the pumping part comprises two supporting blocks which are fixedly connected to one side of the treatment bin, a rotating seat is rotationally connected between the two supporting blocks, a connecting frame is fixedly connected to the rotating seat, a telescopic rod is rotationally connected to the inner wall of the connecting frame, and a liquid pumping pipe with one end penetrating through the rotating seat and extending to the inner side of the treatment bin is rotationally connected to the inner side of the telescopic rod. According to the sewage sampling device disclosed by the invention, the telescopic rod and the rotating seat are respectively locked by the two adjusting screw rods, so that the sampling angle and the sampling depth of the liquid pumping pipe can be adjusted in the process of pushing and pulling the telescopic rod through the electric push rod, and the sampling direction is adjusted in multiple directions in cooperation with the movable treatment bin, so that sewage sampling points are more diversified, and the sample detection accuracy is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage detection, and particularly to a sampling mechanism and a sampling method for sewage discharge detection. Background Technique

[0002] Sewage, as known from the existing art, is the general term for the water discharged in production and life activities. Sewage is water that has incorporated new substances or has deteriorated due to changes in external conditions, resulting in the loss of its original use function. In order to reduce the impact of sewage on the natural environment, sewage needs to be treated before it can be discharged.

[0003] Generally, before sewage is treated or discharged, it is necessary to sample and detect the sewage to determine the degree of pollution of the sewage or whether it meets the discharge conditions. At this time, it is necessary to use sewage sampling and detection equipment to sample the sewage. For example, the invention patent with the publication number CN107219097A discloses a sewage sampling and detection device, which includes wheels, a bottom bracket, a partition board, a fixed frame, a test paper, a sampling device, a moving device, and a top bracket. Wheels are provided at the bottom of the bottom bracket, a top bracket and a moving device are provided at the inner bottom of the bottom bracket, the top bracket is arranged on the left side of the moving device, the moving device is connected with a fixed frame, a partition board is arranged in the middle of the fixed frame, sewage is sampled through the sampling device, the sewage is dripped on the test paper, and at the same time, the moving device drives the fixed frame to move left and right, and the sewage is evenly dripped on the test paper, making the detection more accurate. The test paper changes color, and a standard color comparison card is placed in the fixed frame in front of the partition board. Thus, people can compare the color change of the test paper with the color comparison card to determine the pH value of the sewage, and then determine whether the sewage is acidic or alkaline. People can then appropriately adjust the pH value of the sewage according to its acidity or alkalinity. The pH value of the sewage can reach the standard for discharge only when it is between 6 and 9.

[0004] However, for the sampling device in the above application, it is necessary to manually hold the hose to pump and send the sewage sample, which limits the sewage extraction direction by the manual operation, resulting in limitations in the sewage sampling points. Moreover, the filter screen in the hose is prone to blockage during long-term pumping of sewage, thus affecting the convenience of sample extraction. Therefore, a sampling mechanism and a sampling method for sewage discharge detection are proposed to solve the above problems. Summary of the Invention

[0005] (I) Object of the Invention To solve the technical problems in the background technique, the present invention proposes a sampling mechanism and a sampling method for sewage discharge detection. The pumping part and the processing part on the treatment bin can perform multi-directional extraction and vibration filtration treatment on the sewage sample, having the advantages of diversified sampling directions and more convenient sampling.

[0006] (II) Technical Solution The present invention provides a sampling mechanism for sewage discharge detection, including a bottom plate and a treatment chamber fixedly connected to the bottom plate. The lower surface of the bottom plate is rotatably connected with moving wheels; A sewage sampling and pumping component is arranged on one side of the treatment chamber; The pumping component includes two support blocks fixedly connected to one side of the treatment chamber. A rotating seat is rotatably connected between the two support blocks. A connecting frame is fixedly connected to the rotating seat. An expansion rod is rotatably connected to the inner wall of the connecting frame. The inner side of the expansion rod is rotatably connected with a liquid suction pipe that penetrates through the rotating seat at one end and extends to the inner side of the treatment chamber. A connecting ring is rotatably connected to the expansion rod. An electric push rod is hinged to one side of the treatment chamber, and the output end of the electric push rod is hinged to the connecting ring. Adjusting screws are threadedly connected to both the front support block and the expansion rod; A treatment component for sewage pumping and treatment is arranged in the treatment chamber; The treatment component includes a liquid guiding tank slidably connected to the inner top wall of the treatment chamber, and the liquid guiding tank is communicated with the liquid suction pipe. The lower end of the liquid guiding tank is communicated with a liquid discharge pipe that penetrates through the treatment chamber at one end. A filter screen is fixedly connected to the inner wall of the liquid discharge pipe. A liquid guiding frame is fixedly connected to the middle of the liquid discharge pipe. An air pump is fixedly installed on the inner top wall of the treatment chamber, and the air inlet end of the air pump is communicated with the liquid guiding tank through a hose; A driving component for driving the liquid guiding tank to vibrate is arranged at the upper end of the treatment chamber. A slag receiving box is placed on the back of the treatment chamber and located below the liquid discharge pipe; A sampling component for sample receiving is arranged on the front of the treatment chamber.

[0007] Preferably, the pumping component further includes a driving motor fixedly installed on the rotating seat and located inside the connecting frame. The output shaft of the driving motor and one end of the expansion rod located inside the connecting frame are both installed with gears, and the two gears are meshed with each other. A plurality of stirring rods are fixedly connected to the end of the expansion rod away from the connecting frame.

[0008] Preferably, the expansion rod is composed of a sleeve and a rod. The sleeve is rotatably connected to the connecting frame. The rod is slidably connected inside the sleeve, and the connecting ring and the stirring rods are both located on the rod. The end of the liquid suction pipe located inside the treatment chamber is a hose.

[0009] Preferably, a plurality of limiting grooves are formed on the front surface of the rotating seat and the lower surface of the rod. The plurality of limiting grooves on the rod are arranged in a long strip shape at equal intervals. The limiting grooves on the front surface of the rotating seat are arranged in an annular shape at equal intervals, and the specifications of the limiting grooves are adapted to the specifications of the adjusting screws. Threaded holes are formed on both the front support block and the inner bottom wall of the sleeve, and the threaded holes are adapted to the threads on the outer side of the adjusting screws.

[0010] Preferably, the filter screen is installed in an inclined shape in the liquid discharge pipe, and a valve is installed at one end of the liquid discharge pipe communicating with the liquid guide tank, and the lower end of the liquid guide frame is conical.

[0011] Preferably, the driving member includes a double-shaft motor fixedly installed at the upper end of the processing chamber. The output shaft of the double-shaft motor is fixedly connected with a turntable. A group of connecting blocks are fixedly connected to the upper end of the liquid guide tank. A connecting rod passing through the processing chamber at one end is hinged on the connecting block, and the upper end of the connecting rod is rotatably connected to the eccentric part of the turntable.

[0012] Preferably, a vertical rod passing through the processing chamber at one end is fixedly connected to the upper end of the liquid guide tank. A perforation for the connecting rod to swing is provided on the inner top wall of the processing chamber, and a rectangular hole for the liquid discharge pipe to move is provided on the back surface of the processing chamber.

[0013] Preferably, the sampling member includes a door plate rotatably connected to the front of the processing chamber. A placement plate is slidably connected to the inner bottom wall of the processing chamber. A sampling box is placed on the placement plate. One end of a support rod hinged to the inner side of the door plate is hinged to the placement plate.

[0014] A sampling method for a sampling mechanism for sewage discharge detection includes the following steps: S1. Sampling: Since one end of the liquid extraction pipe located inside the processing chamber is communicated with the liquid guide tank, and the liquid guide tank is communicated with the air pump, during the process of pumping the liquid guide tank to a vacuum by the air pump, the liquid extraction pipe extending into the sewage can extract samples into the liquid guide tank for storage. During the liquid extraction and sampling process, by driving the telescopic rod to rotate by the driving motor, the sewage can be stirred to improve the turbidity uniformity of the sewage. S2. Adjustment: By locking the telescopic rod with the adjustment screw on the telescopic rod, the electric push rod can be started to push and pull the telescopic rod to rotate and adjust on the rotating seat, so as to adjust the liquid extraction angle of the liquid extraction pipe. By locking the rotating seat with the right adjustment screw, the length of the telescopic rod can be adjusted by the telescopic movement of the electric push rod, so as to adjust the liquid extraction and sampling depth. Then, in cooperation with the moving processing chamber, the sampling orientation can be adjusted in multiple directions. S3. Filtration: When the sewage sample pumped into the liquid guide tank is discharged through the liquid discharge pipe, the liquid guide tank can be driven to vibrate by the double-shaft motor in cooperation with the turntable and the connecting rod, so that the sample can be vibrated and screened by the filter screen in the liquid discharge pipe during the discharge process, so as to filter the sample impurities in the sewage and reduce the content of solid impurities in the sample, thereby improving the detection convenience and accuracy. S4. Sample storage: Place the sampling box on the placement plate. When the door plate is closed, the placement plate can be driven to slide by the support rod, and the sampling box can be driven below the liquid guide frame to receive the sewage sample. After receiving the sample, the sampling box can be placed in the storage box for sealed storage.

[0015] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects: 1. For the sampling mechanism and sampling method for sewage discharge detection, by locking the telescopic rod and the rotating seat with two adjusting screws respectively, during the process of pushing and pulling the telescopic rod by the electric push rod, the sampling angle and sampling depth of the liquid extraction pipe can be adjusted. Then, in cooperation with the moving treatment bin, the sampling orientation can be adjusted in multiple directions, making the sewage sampling points more diverse, so as to improve the accuracy of sample detection.

[0016] 2. For the sampling mechanism and sampling method for sewage discharge detection, during the sampling process, by driving the telescopic rod and the stirring rod located on the telescopic rod to rotate by the driving motor, the sewage can be stirred and processed to improve the turbidity uniformity of the sewage, thereby improving the uniformity of the pollutant content in the sewage and further improving the detection accuracy.

[0017] 3. For the sampling mechanism and sampling method for sewage discharge detection, the double-axis motor cooperates with the turntable and the connecting rod to drive the liquid guide tank to vibrate, so that the sample in the liquid guide tank can be vibrated and screened by the filter screen in the liquid discharge pipe during the discharge process, to filter the sample impurities in the sewage, reduce the content of solid impurities in the sample. At the same time, the vibrating filter screen can discharge the solid impurities into the slag receiving box for collection, thereby improving the convenience and accuracy of sample detection.

[0018] 4. For the sampling mechanism and sampling method for sewage discharge detection, when the door panel is pulled open, the placement plate is driven to slide by the support rod, and the sampling box is driven to the lower part of the liquid guide frame to receive the sewage sample. After the sewage sample is received, the sampling box can be placed in the storage box for airtight storage, so as to reduce the possibility of the sample being contaminated during the placement process and further improve the accuracy of sample detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional view of the overall structure of the present invention; Figure 2 is a three-dimensional sectional view of the overall structure of the present invention; Figure 3 is a schematic diagram of the structure of the pumping part of the present invention; Figure 4 is a schematic diagram of the structure of the treatment part of the present invention; Figure 5 is a rear view of the overall structure of the present invention.

[0020] Reference numerals: 1, bottom plate; 2, moving wheels; 3, treatment chamber; 4, pumping member; 41, support block; 42, rotating seat; 43, connecting frame; 44, drive motor; 45, gear; 46, telescopic rod; 47, electric push rod; 48, connecting ring; 49, adjusting screw; 410, stirring rod; 411, liquid suction pipe; 5, treatment member; 51, liquid guide tank; 52, air pump; 53, drain pipe; 54, liquid guide frame; 55, filter screen; 56, connecting block; 57, double-shaft motor; 58, turntable; 59, connecting rod; 6, sampling member; 61, door panel; 62, placement plate; 63, sampling box; 64, support rod; 7, storage box; 8, slag receiving box. Detailed implementation manners

[0021] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0022] In the description of the present invention, it should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, such as welding, riveting, bonding, etc., or a detachable connection, such as threaded connection, key connection, pin connection, etc., or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] As Figures 1-5 shown, a sampling mechanism for sewage discharge detection proposed by the present invention includes a bottom plate 1 and a treatment chamber 3 fixedly connected to the bottom plate 1. Moving wheels 2 are rotatably connected to the lower surface of the bottom plate 1; A pumping member 4 for sewage sampling is provided on one side of the treatment chamber 3.

[0025] In the present invention, the pumping member 4 on the treatment bin 3 can perform multi-directional extraction and vibration filtration treatment on the sewage sample.

[0026] It should be noted that a handle for pushing the treatment bin 3 is installed on the front surface of the treatment bin 3, so that the operator holds the handle and pushes the treatment bin 3 to move through the moving wheels 2 under the bottom plate 1.

[0027] In an alternative embodiment, the pumping member 4 includes two support blocks 41 fixedly connected to one side of the treatment bin 3. A rotating seat 42 is rotatably connected between the two support blocks 41. A connecting frame 43 is fixedly connected to the rotating seat 42. An expansion link 46 is rotatably connected to the inner wall of the connecting frame 43. The inner side of the expansion link 46 is rotatably connected to a liquid extraction pipe 411 that penetrates through the rotating seat 42 and extends to the inside of the treatment bin 3. A connecting ring 48 is rotatably connected to the expansion link 46. An electric push rod 47 is hinged to one side of the treatment bin 3, and the output end of the electric push rod 47 is hinged to the connecting ring 48. Adjusting screws 49 are threadedly connected to both the front support block 41 and the expansion link 46.

[0028] In this embodiment, by locking the expansion link 46 with the adjusting screw 49 on the expansion link 46, the electric push rod 47 can be started to push and pull the expansion link 46 to rotate and adjust on the rotating seat 42, so as to adjust the liquid extraction angle of the liquid extraction pipe 411. By locking the rotating seat 42 with the right adjusting screw 49, the length of the expansion link 46 can be adjusted by the telescopic movement of the electric push rod 47, so as to adjust the liquid extraction sampling depth. Then, in cooperation with the moving treatment bin 3, the sampling orientation can be adjusted in multiple directions, making the sewage sampling points more diverse, so as to improve the accuracy of sample detection.

[0029] It should be noted that the expansion link 46 is composed of a sleeve and a rod. The sleeve is rotatably connected to the connecting frame 43. The rod is slidably connected to the sleeve. A slider extending to the inside of the sleeve is fixedly connected to the outer side of the rod. A sliding groove for the slider to slide is provided on the inner wall of the sleeve, so that the rod can slide in the sleeve and can also rotate together with the sleeve. One end of the liquid extraction pipe 411 located inside the treatment bin 3 is a flexible pipe, so that when one end of the liquid extraction pipe 411 located inside the expansion link 46 follows the expansion and contraction of the expansion link 46, the end located inside the treatment bin 3 can be stretched and contracted when being stretched.

[0030] Among them, a plurality of limiting grooves are provided on the front surface of the rotating seat 42 and the lower surface of the sleeve rod. The plurality of limiting grooves on the sleeve rod are arranged at equal intervals in a strip shape, and the limiting grooves on the front surface of the rotating seat 42 are arranged at equal intervals in a circular shape. Moreover, the specifications of the limiting grooves are adapted to the specifications of the adjusting screw 49. Threaded holes are provided on both the front support block 41 and the inner bottom wall of the sleeve. And the threaded holes are adapted to the threads on the outer side of the adjusting screw 49. So that the adjusting screw 49 rotating on the sleeve and the front support block 41 can respectively extend into the limiting grooves on the sleeve rod and the rotating seat 42, and the sleeve rod and the rotating seat 42 can be supported and fixed. In an optional embodiment, the pumping member 4 further includes a driving motor 44 fixedly installed on the rotating seat 42 and located inside the connecting frame 43. Gears 45 are installed on the output shaft of the driving motor 44 and one end of the telescopic rod 46 located inside the connecting frame 43. And the two gears 45 are meshed with each other. A plurality of stirring rods 410 are fixedly connected to the end of the telescopic rod 46 away from the connecting frame 43.

[0031] In this embodiment, by driving the telescopic rod 46 and the stirring rods 410 on the telescopic rod 46 to rotate through the driving motor 44, the sewage can be stirred and processed to improve the turbidity uniformity of the sewage, so as to improve the uniformity of the pollutant content in the sewage and further improve the detection accuracy.

[0032] It should be noted that both the connecting ring 48 and the stirring rods 410 are located on the sleeve rod; and the inner peripheral wall of the connecting ring 48 is rotatably connected to the sleeve rod through a bearing.

[0033] In an optional embodiment, a processing member 5 for sewage pumping and processing is provided in the processing chamber 3; The processing member 5 includes a liquid guide tank 51 slidably connected to the inner top wall of the processing chamber 3. And the liquid guide tank 51 is communicated with the liquid extraction pipe 411. A drain pipe 53 with one end penetrating through the processing chamber 3 is communicated with the lower end of the liquid guide tank 51. A filter screen 55 is fixedly connected to the inner wall of the drain pipe 53. A liquid guide frame 54 is fixedly connected to the middle of the drain pipe 53. An air pump 52 is fixedly installed on the inner top wall of the processing chamber 3. And the air inlet end of the air pump 52 is communicated with the liquid guide tank 51 through a hose; A driving member for driving the liquid guide tank 51 to vibrate is provided at the upper end of the processing chamber 3. A slag receiving box 8 located below the drain pipe 53 is placed on the back of the processing chamber 3.

[0034] In this embodiment, by starting the air pump 52 to pump the sewage into the liquid guide tank 51 and discharging it through the drain pipe 53, the liquid guide tank 51 can be driven to vibrate by the double-shaft motor 57 in cooperation with the turntable 58 and the connecting rod 59. So that when the sample is discharged, it can be vibrated and screened by the filter screen 55 in the drain pipe 53 to filter the sample impurities in the sewage, reduce the content of solid impurities in the sample. At the same time, the vibrating filter screen 55 can discharge the solid impurities into the slag receiving box 8, thereby improving the convenience and accuracy of sample detection.

[0035] It should be noted that the filter screen 55 is installed in the drain pipe 53 in an inclined shape, so that after filtering solid impurities, the filter screen 55 can export the solid impurities from the drain pipe 53. And a valve is installed at one end of the drain pipe 53 communicating with the liquid guide tank 51. The lower end of the liquid guide frame 54 is conical, and the filtered sewage sample is guided by the liquid guide frame 54 to the filter screen 55.

[0036] Among them, the driving member includes a double-shaft motor 57 fixedly installed at the upper end of the treatment chamber 3. The output shaft of the double-shaft motor 57 is fixedly connected with a turntable 58. A group of connecting blocks 56 are fixedly connected to the upper end of the liquid guide tank 51. A connecting rod 59 is hinged on the connecting block 56 and penetrates through the treatment chamber 3 at one end. And the upper end of the connecting rod 59 is rotationally connected to the eccentric position of the turntable 58. After the started double-shaft motor 57 drives the turntable 58 to rotate, the connecting block 56 on the liquid guide tank 51 can be repeatedly pushed and pulled through the connecting rod 59 to drive the liquid guide tank 51 to vibrate repeatedly.

[0037] In addition, a vertical rod fixedly connected to the upper end of the liquid guide tank 51 penetrates through the treatment chamber 3 at one end. A perforation for the connecting rod 59 to swing is opened on the inner top wall of the treatment chamber 3, so that the connecting rod 59 penetrating through the inner top wall of the treatment chamber 3 has a rotation space. A rectangular hole for the drain pipe 53 to move is opened on the back of the treatment chamber 3, so that when the drain pipe 53 penetrating through the treatment chamber 3 vibrates together with the liquid guide tank 51, it has a space to move up and down.

[0038] In an alternative embodiment, a sampling member 6 for sample collection is provided on the front surface of the treatment chamber 3. The sampling member 6 includes a door panel 61 rotatably connected to the front surface of the treatment chamber 3. A placement plate 62 is slidably connected to the inner bottom wall of the treatment chamber 3. A sampling box 63 is placed on the placement plate 62. One end of a support rod 64 is hinged to the inner side of the door panel 61 and the other end is hinged to the placement plate 62.

[0039] In this embodiment, after pulling open the door panel 61 to drive the placement plate 62 to slide out of the treatment chamber 3, the sampling box 63 can be placed on the placement plate 62. When closing the door panel 61, the placement plate 62 can be driven to slide through the support rod 64 to drive the sampling box 63 to the lower part of the liquid guide frame 54 for collecting the sewage sample. After the sampling is completed, the sampling box 63 can be placed in the storage box 7 for airtight storage to reduce the possibility of the sample being contaminated during the placement process and further improve the accuracy of sample detection.

[0040] It should be noted that a rectangular opening is opened on the front surface of the treatment chamber 3, and the door panel 61 is rotatably connected in the opening through a rotating shaft. And a slider for supporting the sliding of the placement plate 62 is installed on the inner bottom wall of the treatment chamber 3, and one side of the placement plate 62 close to the slide rail is slidably connected to the slide rail.

[0041] A sampling method for a sampling mechanism for sewage discharge detection includes the following steps: S1. Sampling: Since one end of the liquid extraction pipe 411 located inside the treatment chamber 3 is connected to the liquid guide tank 51, and the liquid guide tank 51 is connected to the air pump 52, during the process of pumping the liquid guide tank 51 to a vacuum by the air pump 52, the liquid extraction pipe 411 extending into the sewage can extract samples into the liquid guide tank 51 for storage. During the liquid extraction and sampling process, the telescopic rod 46 is rotated by the driving motor 44 to stir and treat the sewage, so as to improve the turbidity uniformity of the sewage; S2. Adjustment: By locking the telescopic rod 46 with the adjustment screw 49 on the telescopic rod 46, the electric push rod 47 can be started to push and pull the telescopic rod 46 to rotate and adjust on the rotating seat 42, so as to adjust the liquid extraction angle of the liquid extraction pipe 411. By locking the rotating seat 42 with the right adjustment screw 49, the length of the telescopic rod 46 can be adjusted by the telescopic movement of the electric push rod 47, so as to adjust the liquid extraction and sampling depth. Then, in cooperation with the moving treatment chamber 3, the sampling orientation can be adjusted in multiple directions; S3. Filtration: When the sewage sample pumped into the liquid guide tank 51 is discharged through the drain pipe 53, the liquid guide tank 51 can be driven to vibrate by the double-shaft motor 57 in cooperation with the turntable 58 and the connecting rod 59, so that the sample can be vibrated and screened by the filter screen 55 in the drain pipe 53 during the discharge process, so as to filter the sample impurities in the sewage and reduce the content of solid impurities in the sample, thereby improving the detection convenience and accuracy; S4. Sample storage: Place the sampling box 63 on the placement plate 62. When the door panel 61 is closed, the placement plate 62 can be driven to slide by the support rod 64, and the sampling box 63 can be driven under the liquid guide frame 54 to receive the sewage sample. After receiving the sample, the sampling box 63 can be placed in the storage box 7 for airtight storage.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling mechanism for sewage discharge detection, comprising a base plate (1) and a processing chamber (3) fixedly connected to the base plate (1), characterized in that: The lower surface of the bottom plate (1) is rotatably connected to a moving wheel (2); A pumping member (4) for sewage sampling is provided on one side of the processing chamber (3); The pumping member (4) comprises two support blocks (41) fixedly connected to one side of the processing chamber (3); a rotating seat (42) is rotatably connected between the two support blocks (41); a connecting frame (43) is fixedly connected to the rotating seat (42); a telescopic rod (46) is rotatably connected to the inner wall of the connecting frame (43); a liquid extraction tube (411) having one end penetrating the rotating seat (42) and extending to the inner side of the processing chamber (3) is rotatably connected to the inner side of the telescopic rod (46); a connecting ring (48) is rotatably connected to the telescopic rod (46); an electric push rod (47) is hingedly connected to one side of the processing chamber (3); and an output end of the electric push rod (47) is hingedly connected to the connecting ring (48); and an adjusting screw (49) is threadedly connected to the front support block (41) and the telescopic rod (46); The processing chamber (3) is provided with a processing component (5) for sewage pumping and processing; The processing element (5) comprises a liquid guiding tank (51) slidably connected to the inner top wall of the processing chamber (3), and the liquid guiding tank (51) is connected to the liquid extraction pipe (411), the lower end of the liquid guiding tank (51) is connected to a liquid discharge pipe (53) having one end penetrating the processing chamber (3), the inner wall of the liquid discharge pipe (53) is fixedly connected to a filter screen (55), the middle part of the liquid discharge pipe (53) is fixedly connected to a liquid guiding frame (54), the inner top wall of the processing chamber (3) is fixedly mounted with an air pump (52), and the air inlet end of the air pump (52) is connected to the liquid guiding tank (51) via a hose; A driving member for driving the liquid guiding tank (51) to vibrate is disposed at the upper end of the processing chamber (3), and a slag receiving box (8) located below the liquid drain pipe (53) is placed on the back of the processing chamber (3); A sampling piece (6) for collecting samples is arranged on the front side of the processing chamber (3).

2. A sampling mechanism for sewage discharge detection according to claim 1, characterized in that: The pumping member (4) further comprises a driving motor (44) fixedly mounted on the rotating seat (42) and located inside the connecting frame (43); a gear (45) is mounted on the output shaft of the driving motor (44) and one end of the telescopic rod (46) located inside the connecting frame (43), and the two gears (45) are meshed with each other; and a plurality of stirring rods (410) are fixedly connected to one end of the telescopic rod (46) away from the connecting frame (43).

3. A sampling mechanism for sewage discharge detection according to claim 1, characterized in that: The telescopic rod (46) is composed of a sleeve and a sleeve rod, the sleeve is rotatably connected to the connecting frame (43), the sleeve rod is slidably connected in the sleeve, and the connecting ring (48) and the stirring rod (410) are both located on the sleeve rod. The end of the liquid extraction tube (411) located inside the processing chamber (3) is a hose.

4. A sampling mechanism for sewage discharge detection according to claim 3, characterized in that: The front surface of the rotating seat (42) and the lower surface of the sleeve rod are both provided with a plurality of limit grooves, the plurality of limit grooves on the sleeve rod are equidistantly distributed in the form of long strips, the limit grooves on the front surface of the rotating seat (42) are equidistantly distributed in the form of rings, and the specifications of the limit grooves are compatible with the specifications of the adjusting screw (49), and the support block (41) on the front side and the inner bottom wall of the sleeve are both provided with threaded holes, and the threaded holes are compatible with the threads on the outer side of the adjusting screw (49).

5. A sampling mechanism for sewage discharge detection according to claim 1, characterized in that: The filter screen (55) is installed in an inclined manner in the liquid discharge pipe (53), and a valve is installed at one end of the liquid discharge pipe (53) that is in communication with the liquid guide tank (51), and the lower end of the liquid guide frame (54) is conical.

6. A sampling mechanism for sewage discharge detection according to claim 1, characterized in that: The driving member comprises a double-axis motor (57) fixedly mounted on the upper end of the processing chamber (3); the output shaft of the double-axis motor (57) is fixedly connected to a rotating disk (58); the upper end of the liquid guiding tank (51) is fixedly connected to a group of connecting blocks (56); a connecting rod (59) having one end extending through the processing chamber (3) is hingedly connected to the connecting block (56); and the upper end of the connecting rod (59) is rotatably connected to an eccentric portion of the rotating disk (58).

7. A sampling mechanism for sewage discharge detection according to claim 1, characterized in that: The upper end of the liquid guide tank (51) is fixedly connected to a vertical rod having one end penetrating through the processing chamber (3); the inner top wall of the processing chamber (3) is provided with a through hole for the connecting rod (59) to swing; and the back of the processing chamber (3) is provided with a rectangular hole for the liquid discharge pipe (53) to move.

8. A sampling mechanism for sewage discharge detection according to claim 1, characterized in that: The sampling member (6) comprises a door panel (61) rotatably connected to the front face of the processing chamber (3); a placement plate (62) is slidably connected to the inner bottom wall of the processing chamber (3); a sampling box (63) is placed on the placement plate (62); and a support rod (64) is hingedly connected to the inner side of the door panel (61) at one end of which is hingedly connected to the placement plate (62).

9. A sampling method for a sampling mechanism for sewage discharge detection, characterized in that: The following steps are involved: S1. Sampling: Since one end of the liquid extraction tube (411) located inside the processing chamber (3) is connected to the liquid guide tank (51), and the liquid guide tank (51) is connected to the air pump (52), when the liquid guide tank (51) is pumped into a vacuum state by the air pump (52), the liquid extraction tube (411) extending into the sewage can extract samples into the liquid guide tank (51) for storage. During the liquid extraction and sampling process, the telescopic rod (46) is driven to rotate by the driving motor (44), so that the sewage can be stirred to improve the turbidity uniformity of the sewage. S2, adjustment: by locking the telescopic rod (46) through the adjusting screw (49) on the telescopic rod (46), the electric push rod (47) can be started to push and pull the telescopic rod (46) on the rotating seat (42) for rotation adjustment, so as to adjust the liquid extraction angle of the liquid extraction tube (411), and by locking the rotating seat (42) with the right adjusting screw (49), the length of the telescopic rod (46) can be adjusted through the electric push rod (47) to adjust the liquid extraction sampling depth, and then cooperate with the movable processing chamber (3) to perform multi-directional adjustment of the sampling direction; S3, filtration: when the sewage sample pumped into the liquid guiding tank (51) is discharged through the liquid discharge pipe (53), the liquid guiding tank (51) can be driven to vibrate by a dual-axis motor (57) in cooperation with a rotating disk (58) and a connecting rod (59), so that during the discharge process, the sample can be vibrated and screened by a filter screen (55) in the liquid discharge pipe (53), thereby filtering the sample impurities in the sewage and reducing the solid impurity content in the sample, thereby improving the convenience and accuracy of detection; S4. Sample storage: The sampling box (63) is placed on the placement plate (62). When the door plate (61) is closed, the placement plate (62) can be driven to slide by the support rod (64) to drive the sampling box (63) to the bottom of the liquid guide frame (54) for collecting sewage samples. The collected sampling box (63) can be placed in the storage box (7) for sealed storage.

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