A sewage detection system

Abstract

The present invention discloses a sewage detection system, which specifically relates to the field of sewage detection, including a sampling mechanism, wherein the outer wall of the sampling mechanism is connected to a dispensing mechanism, the sampling mechanism includes a first sampling barrel, the bottom of the first sampling barrel is connected to a first sampling tube, the outer wall of the first sampling barrel is connected to a first through pipe, and the dispensing mechanism includes a top cover connected to one end of the first through pipe, the top cover is sealed with an elastic film connecting pipe above a limit plate, the other end of the elastic film connecting pipe is sealed with the inner wall of the first through pipe, and an elastic film is provided at the connection between the elastic film connecting pipe and the first through pipe. The present invention combines a plurality of first through pipes while sampling sewage so that the water sample is evenly dispersed and flows into the inner cavity of the second sampling barrel for dispensing, and then in subsequent detection, there is no need to manually dispensing the obtained water sample, thereby avoiding water sample leakage affecting actual detection and use.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage detection, and more specifically, to a sewage detection system. Background Art

[0002] Sewage refers to the water discharged from life and production that is polluted to a certain extent. Water that has lost its original function is simply called sewage. It is mainly water used in life, which contains more organic matter and is easier to treat. From the perspective of the source of sewage, sewage can be defined as liquid or water carrying waste mixed with groundwater, surface water, blizzard, etc. discharged from residential, institutional, commercial or industrial areas. Sewage has many categories, and there are also many technologies and processes to reduce the impact of sewage on the environment.

[0003] At present, the steps of sampling and testing sewage are mostly carried out separately. First, the sewage is sampled and filled, and then the obtained water samples are filled into different test bottles respectively. Then, different tests are performed on each test bottle by adding substances. The overall steps are relatively cumbersome, and in the process of repeatedly filling water samples, it is easy to cause water samples to leak, which leads to a reduction in the sample amount during the test, thereby reducing the accuracy of the test and being inconvenient for actual use. Therefore, the present invention proposes a sewage detection system to solve the above problems. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a sewage detection system, including a sampling mechanism, wherein the outer wall of the sampling mechanism is connected to a dispensing mechanism, the sampling mechanism includes a first sampling cylinder, the bottom of the first sampling cylinder is connected to a first sampling tube, a filter plate is fixedly installed on the inner wall of the first sampling cylinder, a first through pipe is connected on the outer wall of the first sampling cylinder, the dispensing mechanism includes a top cover connected to one end of the first through pipe, a limit plate is fixedly installed on the inner wall of the top cover above the first through pipe, the top cover is sealed and connected to an elastic membrane connecting tube above the limit plate, and the other end of the elastic membrane connecting tube is sealed and connected to the inner wall of the first through pipe An elastic membrane is provided at the connection between the elastic membrane connecting tube and the first through tube, and the elastic membrane completely blocks the first through tube after being fully expanded, and a first piston rod is installed inside the top cover in an up and down sliding state, and a second sampling tube is threadedly connected to the bottom of the top cover, and one end of the first piston rod extending into the top cover is fixedly connected to the first piston plate, and a first one-way valve is fixedly installed at the connection between the first through tube and the top cover, and an air cylinder is fixedly installed on the top of the top cover, and a through air hole is opened at the connection between the top cover and the air cylinder, and a constant pressure valve is fixedly installed on the outer wall of the air cylinder, and when the elastic membrane is fully expanded and blocks the first through tube, the constant pressure valve does not reach the pressure threshold.

[0005] As a further solution of the present invention, a power mechanism is provided on the top of the sampling mechanism, and an anti-blocking mechanism is fixedly connected to the bottom of the power mechanism. The outer walls of the plurality of the subpackaging mechanisms are all connected to a detection agent adding mechanism, and the detection agent adding mechanism includes a second through-tube connected to the outer wall of the second sampling cylinder, and one end of the second through-tube extending out of the outer wall of the second sampling cylinder is connected to a liquid storage cylinder, and a sealing cover is connected to the outer wall of the liquid storage cylinder, and a second one-way valve is fixedly installed at the connection between the second through-tube and the second sampling cylinder, and a second piston plate is provided inside the liquid storage cylinder to move back and forth in a horizontal direction, a second piston rod is fixedly connected to one side of the second piston plate, a push plate is fixedly installed on one side of the second piston rod, and a second spring is fixedly installed between the push plate and the liquid storage cylinder, when the first piston plate moves to the connection between the first through-tube and the top cover, and the second piston plate is completely located on the left side of the liquid storage cylinder, the elastic membrane expands slightly and does not block the first through-tube; when the first piston plate moves to above the second sampling cylinder, and the second piston plate is completely located on the right side of the liquid storage cylinder, the elastic membrane completely expands and blocks the first through-tube.

[0006] As a further solution of the present invention, a microorganism detection probe is fixedly installed on the top of the filter plate, and a microorganism detection instrument is fixedly connected to the top of the microorganism detection probe.

[0007] As a further solution of the present invention, the first through tube and the top cover are arranged in a one-to-one correspondence, the number of the first through tube and the top cover is set to multiple, and the multiple first through tubes and top covers are arranged in a ring-shaped state with equal distances in sequence about the outer circumferential surface of the first sampling cylinder.

[0008] As a further solution of the present invention, the power mechanism includes a dual-axis motor fixedly mounted on the top of the microbial detection probe, the top of the dual-axis motor is sealed and fixedly connected to the first sampling tube, one output shaft end of the dual-axis motor is fixedly mounted with a connecting rotating rod rotatably connected to the filter plate, and the other output shaft end of the dual-axis motor is fixedly mounted with a threaded screw, and the outer wall of the threaded screw is engaged with a connecting frame fixedly connected to the first piston rod.

[0009] As a further solution of the present invention, a support sleeve is rotatably installed on the top of the threaded screw, a handle fixedly connected to the first sampling barrel is fixedly installed inside the support sleeve, the connecting frame is slidably installed on the outer wall of the handle, and a first spring is fixedly installed between the connecting frame and the first sampling barrel.

[0010] As a further solution of the present invention, the anti-clogging mechanism includes a second sampling tube rotatably installed at the bottom of the first sampling tube, the outer wall of the second sampling tube is threaded, a second connecting rod is fixedly installed on the inner wall of the second sampling tube, a first connecting rod fixedly connected to the connecting-type rotating rod is fixedly installed on the top of the second connecting rod, the first connecting rod is rotatably installed inside the filter plate, and a first scraper and a second scraper are respectively fixedly installed on the outer wall of the first connecting rod.

[0011] As a further solution of the present invention, the outer wall of the second sampling tube is engaged with a threaded sleeve, and the outer wall of the threaded sleeve is hinged with multiple first struts, one side of the first strut is hinged with a second strut, one side of the second strut is hinged with a connecting sleeve fixedly connected to the first sampling tube, and a stirring blade is fixedly installed on the end of the second strut away from the connecting sleeve.

[0012] As a further solution of the present invention, armatures are fixedly installed above and below the inner wall of the push plate, and electromagnets are fixedly installed at corresponding positions of the outer wall of the liquid storage cylinder and the inner wall of the push plate. When the electromagnet is energized, the armature is attracted to make the push plate push the second piston rod, so that the second piston plate squeezes the internal volume of the liquid storage cylinder.

[0013] As a further solution of the present invention, the number of the liquid storage cylinders is set to at least two, the two liquid storage cylinders are arranged linearly and equidistantly in the vertical direction with respect to the outer wall of the second sampling cylinder, and a third through pipe is provided between the two liquid storage cylinders.

[0014] Technical effects and advantages of the present invention:

[0015] 1. The present invention provides a plurality of top covers and a second sampling cylinder in communication on the outer wall of the first sampling cylinder, so that when the sewage is sampled, on the one hand, the larger impurities in the sewage are removed in combination with the setting of the filter plate, and on the other hand, in combination with the setting of the plurality of first through pipes, the water sample entering the inner cavity of the first sampling cylinder is evenly dispersed and flows into the inner cavity of the second sampling cylinder for subpackaging. Then, in subsequent detection, there is no need to manually subpack the obtained water sample, thereby avoiding the leakage of the water sample to affect the actual detection and use;

[0016] 2. The present invention provides a detection agent adding mechanism on the outer wall of the second sampling cylinder, so that when testing the packaged water sample, different detection agents can be added to the inner cavity of the corresponding liquid storage cylinder respectively, and the second piston rod is pushed to synchronously push the second piston plate to move horizontally in the inner cavity of the liquid storage cylinder by pushing the push plate, and then the detection agent inside the liquid storage cylinder is squeezed into the inner cavity of the second sampling cylinder, so that the detection agent and sewage are fully mixed for detection and use, thereby improving the overall detection efficiency, and it is more convenient to use and more convenient for practical use;

[0017] 3. According to the present invention, when the first piston plate moves to the connection between the first through tube and the top cover, and the second piston plate is completely located on the left side of the liquid storage cylinder, the elastic membrane expands slightly and does not block the first through tube; when the first piston plate moves to above the second sampling cylinder, and the second piston plate is completely located on the right side of the liquid storage cylinder, the elastic membrane expands completely and blocks the first through tube, so that when the first piston plate is pushed to the right side of the second sampling cylinder, the second sampling cylinder is blocked and cannot be sampled, and when the first piston plate is located on the left side of the second sampling cylinder, the second sampling cylinder can be sampled normally. In this way, whether the second sampling cylinder participates in sampling can be selected by adjusting the position of the first piston plate, thereby satisfying separate sampling of different depths and different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 A cross-sectional view of the internal structure of the second sampling barrel of the present invention.

[0020] Figure 3 It is a structural cross-sectional view of the present invention.

[0021] Figure 4 For the present invention Figure 2 A-section structure enlarged view.

[0022] Figure 5 For the present invention Figure 2 Enlarged view of the structure of part B.

[0023] Figure 6 It is a structural side sectional view of the present invention.

[0024] Figure 7 For the present invention Figure 5 Enlarged view of the C structure.

[0025] Figure 8 For the present invention Figure 5 Enlarged view of the D structure.

[0026] The accompanying drawings are marked as follows: 1 sampling mechanism, 101 first sampling cylinder, 102 first sampling tube, 103 filter plate, 104 microorganism detection probe, 105 microorganism detector, 106 first through pipe, 107 first one-way valve, 108 elastic membrane connecting pipe, 109 elastic membrane, 2 filling mechanism, 21 top cover, 22 first piston rod, 23 second sampling cylinder, 24 first piston plate, 25 air cylinder, 26 constant pressure valve, 27 air hole, 28 limit plate, 3 power mechanism, 31 dual-axis motor, 32 connecting type rotating rod, 33 threaded screw, 34 supporting sleeve, 35 handle, 36 connecting frame, 37 first spring, 4 anti-blocking mechanism, 41 second sampling tube, 42 threaded sleeve, 43 first support rod, 44 second support rod, 45 stirring blade, 46 connecting sleeve, 47 first connecting rod, 48 second connecting rod, 49 first scraper, 410 second scraper, 5 detection agent adding mechanism, 51 second through pipe, 52 liquid storage cylinder, 53 sealing cover, 54 second one-way valve, 55 second piston plate, 56 second piston rod, 57 push plate, 58 second spring, 59 third through pipe, 60 armature. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the 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.

[0028] Refer to the instruction manual Figure 1-8 , a sewage detection system according to an embodiment of the present invention, such as Figure 1 As shown, it comprises a sampling mechanism 1, and the outer wall of the sampling mechanism 1 is connected to a dispensing mechanism 2;

[0029] Combination Figure 6-8 As shown, the sampling mechanism 1 includes a first sampling cylinder 101, the bottom of the first sampling cylinder 101 is connected to a first sampling tube 102, a filter plate 103 is fixedly installed on the inner wall of the first sampling cylinder 101, and a first through pipe 106 is connected to the outer wall of the first sampling cylinder 101. Figure 4 As shown, the packaging mechanism 2 includes a top cover 21 connected to one end of the first through pipe 106, Figure 2As shown, a limit plate 28 is fixedly installed on the inner wall of the top cover 21 above the first through pipe 106, and an elastic membrane connecting pipe 108 is sealed and connected to the top cover 21 above the limit plate 28. The other end of the elastic membrane connecting pipe 108 is sealed and connected to the inner wall of the first through pipe 106. An elastic membrane 109 is provided at the connection between the elastic membrane connecting pipe 108 and the first through pipe 106. After the elastic membrane 109 is fully expanded, the first through pipe 106 is completely blocked. When the elastic membrane 109 is expanded to the point where the first through pipe 106 can be completely blocked, sewage will not enter the top cover 21, and the top cover 21 A first piston rod 22 is installed in the interior of the cover 21 in an up-and-down sliding state, and a second sampling cylinder 23 is threadedly connected to the bottom of the top cover 21. One end of the first piston rod 22 extending into the interior of the top cover 21 is fixedly connected to a first piston plate 24. The purpose of such a setting is to make the top cover 21 and the second sampling cylinder 23 detachable. After the water sample is extracted and divided into the inner cavity of the second sampling cylinder 23, when the water sample needs to be tested, the second sampling cylinder 23 can be removed from the bottom of the top cover 21, so that the water sample can be quickly tested and used;

[0030] A first one-way valve 107 is fixedly installed at the connection point between the first through pipe 106 and the first sampling cylinder 101. The purpose of this arrangement is to ensure that water and gas can only flow from the first through pipe 106 to the inside of the top cover 21, and cannot flow back. In addition, an air cylinder 25 is fixedly installed on the top of the top cover 21, and a constant pressure valve 26 is fixedly installed on the outer wall of the air cylinder 25. A through air hole 27 is opened at the connection between the top cover 21 and the air cylinder 25. When the elastic membrane 109 is fully expanded and blocks the first through pipe 106, the constant pressure valve 26 does not reach the pressure threshold. The setting of the constant pressure valve 26 is used to make the air cylinder 25 and the second sampling cylinder 23 within the pressure limiting range, to avoid direct pressure relief when the elastic membrane does not completely swell to block the first through pipe 106, and at the same time to be able to When the sampling cylinder 23 is over-pressured, pressure relief protection is performed to prevent the structural parts from being damaged. When the first piston rod 22 is actually pulled out to make the first piston plate 24 move synchronously in the inner cavities of the top cover 21 and the second sampling cylinder 23, the internal gas of the top cover 21 and the second sampling cylinder 23 can be gradually discharged, and the internal gas of the first sampling cylinder 101 is drawn into the interior of the top cover 21 and the second sampling cylinder 23 through the first through pipe 106, so that negative pressure is generated in the inner cavity of the first sampling cylinder 101. Then, in actual use, by extending the first sampling tube 102 into the sewage, the sewage can be sequentially drawn into the inner cavity of the first sampling cylinder 101 by pulling the first piston rod 22, and then dispersedly flowed into the interior of the top cover 21 and the second sampling cylinder 23 through the first through pipe 106;

[0031] A power mechanism 3 is disposed on the top of the sampling mechanism 1 , an anti-blocking mechanism 4 is fixedly connected to the bottom of the power mechanism 3 , and a detection agent adding mechanism 5 is connected to the outer walls of the plurality of subpackaging mechanisms 2 .

[0032] Further, see Figure 7-8 As shown, a microorganism detection probe 104 is fixedly installed on the top of the filter plate 103, and a microorganism detection instrument 105 is fixedly connected to the top of the microorganism detection probe 104. The purpose of this arrangement is that when the microorganism detection instrument 105 is started, the microorganism detection probe 104 can detect the microorganism content of the water sample entering the inner cavity of the first sampling tube 101, and by setting the filter plate 103 at the bottom of the microorganism detection probe 104, the impurity content in the water sample entering the first sampling tube 101 and contacting the microorganism detection probe 104 can be reduced, thereby avoiding impurities adhering to the microorganism detection probe 104 and affecting subsequent detection and use problems. Further, refer to Figure 3 As shown, the first through tube 106 and the top cover 21 are arranged in a one-to-one correspondence, and the number of the first through tube 106 and the top cover 21 is set to be multiple, and the multiple first through tubes 106 and the top cover 21 are arranged in a circular shape and equidistantly in sequence about the outer circumferential surface of the first sampling cylinder 101. The purpose of such arrangement is that in the process of pulling the first piston rod 22 and the first piston plate 24, the air in the inner cavity of the first sampling cylinder 101 can be quickly extracted to generate negative pressure inside the first sampling cylinder 101, so that the first sampling tube 102 can quickly draw sewage into the inner cavity of the first sampling cylinder 101, and when the water level reaches the first through tube 106, it flows into the inner cavity of the corresponding second sampling cylinder 23 through the multiple first through tubes 106, so that the obtained water sample can be automatically divided into the inner cavity of the first through tube 106.

[0033] As a further extension of this scheme, refer to Figure 7-8As shown, the power mechanism 3 includes a double-axis motor 31 fixedly mounted on the top of the microorganism detection probe 104, the top of the double-axis motor 31 is sealed and fixedly connected to the first sampling tube 101, one output shaft end of the double-axis motor 31 is fixedly mounted with a connecting rod 32 rotatably connected to the filter plate 103, and the other output shaft end of the double-axis motor 31 is fixedly mounted with a threaded screw 33, and the outer wall of the threaded screw 33 is engaged with a connecting frame 36 fixedly connected to the first piston rod 22. The purpose of this arrangement is that when the double-axis motor 31 is started to make the connecting rod 32 and the threaded screw 33 rotate synchronously, the connecting frame 36 can drive the first piston rod 22 to move up and down on its outer wall, thereby making the first piston rod 22 and the first piston plate 24 close to the top cover 21. The gas is extracted and compressed from the inner cavity of the second sampling tube 23, so that the water sample inside the first sampling tube 101 is divided into the inner cavity of the corresponding second sampling tube 23, and a support sleeve 34 is rotatably installed on the top of the threaded screw 33, and a handle 35 fixedly connected to the first sampling tube 101 is fixedly installed inside the support sleeve 34, and a connecting frame 36 is slidably installed on the outer wall of the handle 35, and a first spring 37 is fixedly installed between the connecting frame 36 and the first sampling tube 101. The purpose of this arrangement is that when the connecting frame 36 as a whole moves up and down on the outer wall of the threaded screw 33, the limiting of multiple handles 35 and the connecting frame 36 makes the overall movement of the connecting frame 36 more balanced and smooth, thereby driving the movement of multiple first piston rods 22 and the first piston plate 24 to be more stable.

[0034] At the same time, combined Figure 8 As shown, the anti-clogging mechanism 4 includes a second sampling tube 41 rotatably mounted on the bottom of the first sampling tube 102, the outer wall of the second sampling tube 41 is threaded, a second connecting rod 48 is fixedly mounted on the inner wall of the second sampling tube 41, a first connecting rod 47 fixedly connected to the connecting type rotating rod 32 is fixedly mounted on the top of the second connecting rod 48, the first connecting rod 47 is rotatably mounted inside the filter plate 103, and a first scraper 49 and a second scraper 410 are fixedly mounted on the outer wall of the first connecting rod 47 respectively, the purpose of such a setting is to enable the connecting type rotating rod 32 to synchronously rotate the first connecting rod 47 as a whole when rotating, and then synchronously enable the first scraper 49 to rotate and scrape on the inner wall of the first sampling tube 102, and the second scraper 410 to rotate and move at the bottom of the filter plate 103, so as to avoid impurities blocking the filter plate 103 and the first sampling tube 102 when extracting water samples, thereby affecting the smooth extraction of water samples.

[0035] Furthermore, the outer wall of the second sampling tube 41 is meshed with a threaded sleeve 42, and the outer wall of the threaded sleeve 42 is hinged with a plurality of first struts 43, one side of the first strut 43 is hinged with a second strut 44, one side of the second strut 44 is hinged with a connecting sleeve 46 fixedly connected to the first sampling tube 102, and one end of the second strut 44 away from the connecting sleeve 46 is fixedly installed with a stirring blade 45. The purpose of such a setting is that when the connecting type rotating rod 32 rotates, the first connecting rod 47 and the second connecting rod 48 can synchronously drive the second sampling tube 41 to rotate as a whole in the first sampling tube 102 The bottom of the second support rod 44 is then limited by the connecting sleeve 46, so that the threaded sleeve 42 drives the first support rod 43 to move linearly on the outer wall of the second sampling tube 41, so that as the threaded sleeve 42 gradually descends, the first support rod 43 can gradually change from an inclined state to a horizontal state, and then the second support rod 44 and the stirring blade 45 are expanded outward, so that when extracting water samples, impurities at the first sampling tube 102 and the second sampling tube 41 are pushed outward to prevent larger impurities from being sucked close to the second sampling tube 41, thereby causing the second sampling tube 41 to be blocked.

[0036] As a further extension of this scheme, refer to Figure 5 As shown, the detection agent adding mechanism 5 includes a second through pipe 51 connected to the outer wall of the second sampling cylinder 23, one end of the second through pipe 51 extending out of the outer wall of the second sampling cylinder 23 is connected to a liquid storage cylinder 52, the outer wall of the liquid storage cylinder 52 is connected to a sealing cover 53, and a second one-way valve 54 is fixedly installed at the connection between the second through pipe 51 and the second sampling cylinder 23. The purpose of this arrangement is to prevent the liquid in the inner cavity of the second sampling cylinder 23 from entering the inner cavity of the liquid storage cylinder 52 through the second through pipe 51. On the contrary, when pressure is applied to the inner cavity of the liquid storage cylinder 52, the treatment agent in the liquid storage cylinder 52 can flow into the inner cavity of the second sampling cylinder 23 through the second through pipe 51 and the second one-way valve 54, and The sewage in the inner cavity of the second sampling cylinder 23 is mixed and tested for use, wherein a second piston plate 55 is provided inside the liquid storage cylinder 52 and is arranged to move back and forth in a horizontal direction, a second piston rod 56 is fixedly connected to one side of the second piston plate 55, a push plate 57 is fixedly installed on one side of the second piston rod 56, an armature 60 is fixedly installed above and below the inner wall of the push plate 57, an electromagnet 61 is fixedly installed at the corresponding position of the outer wall of the liquid storage cylinder 52 and the inner wall of the push plate 57, and a second spring 58 is fixedly installed between the push plate 57 and the liquid storage cylinder 52, and the electromagnet 61 is energized to attract the armature 60 to make the push plate 57 push the second piston rod 56, so that the second piston plate 55 squeezes the internal volume of the liquid storage cylinder 52.

[0037] When the first piston plate 24 moves to the connection between the first through pipe 106 and the top cover 21, and the second piston plate 55 is completely located on the left side of the liquid storage cylinder 52, the elastic membrane 109 expands slightly and does not block the first through pipe 106; when the first piston plate 24 moves to above the second sampling cylinder 23, and the second piston plate 55 is completely located on the right side of the liquid storage cylinder 52, the elastic membrane 109 expands completely and blocks the first through pipe 106, so that when the first piston plate 24 is pushed to the right side of the second sampling cylinder 23, the second sampling cylinder 23 is blocked and cannot be sampled, and when the first piston plate 24 is located on the left side of the second sampling cylinder 23, the second sampling cylinder 23 can be sampled normally. In this way, the position of the first piston plate 24 can be adjusted to select whether the second sampling cylinder 23 participates in the sampling, thereby satisfying separate sampling of different depths and different environments.

[0038] As another application scenario of the detection agent adding mechanism 5 of the present invention, by pushing and pulling the push plate 57, the second piston rod 56 can synchronously push the second piston plate 55 to move horizontally in the inner cavity of the liquid storage cylinder 52, and then squeeze the detection agent inside the liquid storage cylinder 52 into the inner cavity of the second sampling cylinder 23, so that the detection agent and the sewage are fully mixed for detection and use. At the same time, the number of liquid storage cylinders 52 is set to at least two, and the two liquid storage cylinders 52 are arranged in a linear and equidistant state with respect to the outer wall of the second sampling cylinder 23 in the vertical direction, and the two liquid storage cylinders 52 are arranged in a linear and equidistant state with respect to the outer wall of the second sampling cylinder 23. A third through pipe 59 is provided between the cylinders 52. The purpose of this arrangement is that when the detection agent is added into the inner cavity of the second sampling cylinder 23, the detection agent can be mixed in layers inside the sewage through the arrangement of multiple liquid storage cylinders 52. At the same time, by arranging the third through pipe 59 and the sealing cover 53, the inner cavities of the multiple liquid storage cylinders 52 are kept interconnected. Therefore, when the detection agent is added from the sealing cover 53, the multiple liquid storage cylinders 52 can be replenished with the detection agent synchronously, so that the overall detection process is faster and simpler, and more convenient for practical use.

[0039] The equipment is placed in sewage, and the sewage enters the first sampling tube 101 from the second sampling tube 41 and the first sampling tube 102. The filter plate 103 filters the sewage, so that the impurity content in the water sample that enters the first sampling tube 101 and contacts the microbial detection probe 104 is reduced, and the microbial detector 105 is started to detect the microbial content in the water sample that enters the inner cavity of the first sampling tube 101.

[0040] Start the dual-axis motor 31 to drive the connecting rod 32 and the threaded screw 33 to rotate synchronously, the connecting rod 32 drives the first connecting rod 47 and the second connecting rod 48, the first connecting rod 47 drives the connected first scraper 49 and the second scraper 410 to rotate, so that the first scraper 49 rotates and scrapes on the inner wall of the first sampling tube 102, and the second scraper 410 rotates and moves at the bottom of the filter plate 103, so as to avoid impurities clogging the filter plate 103 and the first sampling tube 102 when drawing water samples, affecting the smooth extraction of water samples.

[0041] The second connecting rod 48 drives the second sampling tube 41 to rotate, and the threaded sleeve 42 moves up and down in the second sampling tube 41, so that the threaded sleeve 42 drives the first support rod 43 to move linearly on the outer wall of the second sampling tube 41, so that as the threaded sleeve 42 gradually descends, the first support rod 43 can gradually change from an inclined state to a horizontal state, and then the second support rod 44 and the stirring blade 45 are expanded outward, so that when extracting water samples, impurities in the first sampling tube 102 and the second sampling tube 41 are pushed outward to prevent larger impurities from being sucked close to the second sampling tube 41, thereby causing the second sampling tube 41 to be blocked.

[0042] At the same time, the threaded screw 33 rotates to drive the connecting frame 36 to move up and down, so that the connecting frame 36 drives the first piston rod 22 to move up and down, and then the first piston rod 22 and the first piston plate 24 extract and compress gas from the inner cavity of the top cover 21 and the second sampling tube 23. When the push plate 57 is pushed, the push plate 57 and the liquid storage tube 52 are sucked together by the armature 60 and cannot rebound, so that the gas in the liquid storage tube 52 is discharged in advance, and the excess gas does not enter the second sampling tube 23 and the top cover 21. At this time, when the first piston plate 24 moves upward from the bottom, the gas in the second sampling tube 23 and the top cover 21 passes through the elastic membrane connecting tube 108, so that the elastic membrane 109 expands. When the first piston plate 24 rises and is limited by the limit plate 28, the gas is not enough to expand the elastic membrane 109 to completely block the first sampling tube 102, so that the water sample filtered by the filter plate 103 in the first sampling tube 101 is divided into the corresponding second sampling tube 101 through the first through pipe 106. The inner cavity of the sampling tube 23, at this time, all the second sampling tubes 23 are removed from the bottom of the top cover 21, and the detection agent is added into the liquid storage tube 52 from the sealing cover 53. The push plate 57 is pushed to add the detection agent into the second sampling tube 23. The two liquid storage tubes 52 are connected with a third through pipe 59, so that when the detection agent is added and squeezed into the inner cavity of the second sampling tube 23, the detection agent can be mixed in layers inside the sewage through the setting of multiple liquid storage tubes 52. At the same time, by setting the third through pipe 59 and the sealing cover 53, the inner cavities of the multiple liquid storage tubes 52 are kept in a state of interconnection. Therefore, when the detection agent is added from the sealing cover 53, the multiple liquid storage tubes 52 can be synchronously replenished with the detection agent, so that the water sample can be quickly tested and used. There are many types of sewage detection agents. Different detection agents can be poured into different second sampling tubes for testing at one time, which saves repeated water sampling and repeated addition of detection agents. These cumbersome steps can be saved and water sample testing can be performed more quickly.

[0043] When it is desired to take samples from different areas separately or individually, the corresponding push plate 57 is pushed to push the gas in the liquid storage cylinder 52 into the second sampling cylinder 23. At this time, the first piston plate 24 moves upward from the bottom. When the first piston plate 24 rises and is limited by the limit plate 28, the gas in the second sampling cylinder 23 and the top cover 21 passes through the elastic membrane connecting tube 108, causing the elastic membrane 109 to expand. As the gas in the second sampling cylinder 23 increases, the elastic membrane 109 expands and completely blocks the first sampling tube 102. Therefore, the water sample cannot enter the corresponding second sampling cylinder 23. The excess gas enters the air cylinder 25 through the constant pressure valve 26. When the pressure exceeds the pressure that the constant pressure valve can withstand, the constant pressure valve 26 opens, and the gas and pressure in the air cylinder 20 are discharged to the outside through the constant pressure valve 26. In this way, water can be taken from different areas separately, avoiding leakage of water samples caused by changing sampling barrels back and forth, which affects actual detection.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sewage detection system, comprising a sampling mechanism (1), characterized in that: The outer wall of the sampling mechanism (1) is connected to a dispensing mechanism (2), the sampling mechanism (1) comprises a first sampling cylinder (101), the bottom of the first sampling cylinder (101) is connected to a first sampling tube (102), a filter plate (103) is fixedly mounted on the inner wall of the first sampling cylinder (101), a first through pipe (106) is connected to the outer wall of the first sampling cylinder (101), the dispensing mechanism (2) comprises a top cover (21) connected to one end of the first through pipe (106), a limit plate (28) is fixedly mounted on the inner wall of the top cover (21) above the first through pipe (106), the top cover (21) is sealed with an elastic membrane connecting tube (108) above the limit plate (28), the other end of the elastic membrane connecting tube (108) is connected to the first through pipe (106) ) is sealedly connected to the inner wall of the top cover (21); an elastic membrane (109) is provided at the connection between the elastic membrane connecting tube (108) and the first through tube (106); the elastic membrane (109) completely blocks the first through tube (106) after being fully expanded; a first piston rod (22) is installed inside the top cover (21) in an up-and-down sliding state; a second sampling cylinder (23) is threadedly connected to the bottom of the top cover (21); one end of the first piston rod (22) extending into the top cover (21) is fixedly connected to a first piston plate (24); a first non-return valve (107) is fixedly installed at the connection between the first through tube (106) and the top cover (21); an air cylinder (25) is fixedly installed on the top of the top cover (21); and a through air hole (27) is provided at the connection between the top cover (21) and the air cylinder (25); The top of the sampling mechanism (1) is provided with a power mechanism (3), the bottom of the power mechanism (3) is fixedly connected with an anti-blocking mechanism (4), and the outer walls of the plurality of the subpackaging mechanisms (2) are all connected with a detection agent adding mechanism (5); The detection agent adding mechanism (5) comprises a second through pipe (51) connected to the outer wall of the second sampling cylinder (23); one end of the second through pipe (51) extending out of the outer wall of the second sampling cylinder (23) is connected to a liquid storage cylinder (52); the outer wall of the liquid storage cylinder (52) is connected to a sealing cover (53); a second one-way valve (54) is fixedly installed at the connection point between the second through pipe (51) and the second sampling cylinder (23); a second piston plate (55) is arranged to move back and forth in a horizontal direction inside the liquid storage cylinder (52); a second piston rod (56) is fixedly connected to one side of the second piston plate (55); and one side of the second piston rod (56) is connected to the second piston plate (55). A push plate (57) is fixedly installed, and a second spring (58) is fixedly installed between the push plate (57) and the liquid storage cylinder (52). When the first piston plate (24) moves to the connection between the first through pipe (106) and the top cover (21), and the second piston plate (55) is completely located on the left side of the liquid storage cylinder (52), the elastic membrane (109) expands slightly and does not block the first through pipe (106); when the first piston plate (24) moves to above the second sampling cylinder (23), and the second piston plate (55) is completely located on the right side of the liquid storage cylinder (52), the elastic membrane (109) expands completely and blocks the first through pipe (106).

2. A sewage detection system according to claim 1, characterized in that: A constant pressure valve (26) is fixedly mounted on the outer wall of the air cylinder (25); when the elastic membrane (109) is fully expanded and blocks the first through pipe (106), the constant pressure valve (26) does not reach a pressure threshold.

3. A sewage detection system according to claim 1, characterized in that: The first through tube (106) and the top cover (21) are arranged in a one-to-one correspondence, the number of the first through tube (106) and the top cover (21) are both set to be multiple, and the multiple first through tubes (106) and the top covers (21) are arranged in a circular shape and equidistantly in sequence with respect to the outer circumferential surface of the first sampling cylinder (101).

4. A sewage detection system according to claim 1, characterized in that: The power mechanism (3) comprises a double-axis motor (31) fixedly mounted on the top of the microorganism detection probe (104); the top of the double-axis motor (31) is sealed and fixedly connected to the first sampling tube (101); one output shaft end of the double-axis motor (31) is fixedly mounted with a connecting rod (32) rotatably connected to the filter plate (103); the other output shaft end of the double-axis motor (31) is fixedly mounted with a threaded screw (33); the outer wall of the threaded screw (33) is engaged with a connecting frame (36) fixedly connected to the first piston rod (22).

5. A sewage detection system according to claim 4, characterized in that: A support sleeve (34) is rotatably mounted on the top of the threaded screw (33), a handle (35) fixedly connected to the first sampling tube (101) is fixedly mounted inside the support sleeve (34), the connecting frame (36) is slidably mounted on the outer wall of the handle (35), and a first spring (37) is fixedly mounted between the connecting frame (36) and the first sampling tube (101).

6. A sewage detection system according to claim 1, characterized in that: The anti-clogging mechanism (4) comprises a second sampling tube (41) rotatably mounted at the bottom of the first sampling tube (102); the outer wall of the second sampling tube (41) is arranged in a threaded shape; a second connecting rod (48) is fixedly mounted on the inner wall of the second sampling tube (41); a first connecting rod (47) fixedly connected to the connecting type rotating rod (32) is fixedly mounted on the top of the second connecting rod (48); the first connecting rod (47) is rotatably mounted inside the filter plate (103); and a first scraper (49) and a second scraper (410) are respectively fixedly mounted on the outer wall of the first connecting rod (47).

7. A sewage detection system according to claim 6, characterized in that: The outer wall of the second sampling tube (41) is meshed with a threaded sleeve (42), and the outer wall of the threaded sleeve (42) is hinged with a plurality of first support rods (43), one side of the first support rod (43) is hinged with a second support rod (44), one side of the second support rod (44) is hinged with a connecting sleeve (46) fixedly connected to the first sampling tube (102), and a stirring blade (45) is fixedly installed at one end of the second support rod (44) away from the connecting sleeve (46).

8. A sewage detection system according to claim 1, characterized in that: An armature (60) is fixedly mounted above and below the inner wall of the push plate (57); an electromagnet (61) is fixedly mounted at the corresponding position of the outer wall of the liquid storage cylinder (52) and the inner wall of the push plate (57); the electromagnet (61) is energized to attract the armature (60) so that the push plate (57) pushes the second piston rod (56), thereby the second piston plate (55) squeezes the internal volume of the liquid storage cylinder (52); a microorganism detection probe (104) is fixedly mounted on the top of the filter plate (103); and a microorganism detection instrument (105) is fixedly connected to the top of the microorganism detection probe (104).

9. A sewage detection system according to claim 1, characterized in that: The number of the liquid storage cylinders (52) is set to be at least two, and the two liquid storage cylinders (52) are arranged in a linear and equidistant state in the longitudinal direction with respect to the outer wall of the second sampling cylinder (23), and a third through pipe (59) is provided to connect the two liquid storage cylinders (52).

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