A water quality total nitrogen monitoring device and monitoring method thereof

Abstract

The present invention belongs to the technical field of monitoring and sampling, and specifically relates to a water quality total nitrogen monitoring device and a monitoring method thereof; the sampler comprises a lifting square groove, the lifting square groove is connected with a lifting assembly; the lifting assembly comprises a lifting threaded shaft arranged in the lifting square groove, a lifting bevel gear is installed on the lifting threaded shaft, the lifting bevel gear is meshedly connected with a rotating bevel gear, a rotating shaft is installed on the rotating bevel gear, the rotating shaft passes through the lifting square groove and a waterproof square box arranged on the outer side wall of the sampler and is connected with a rotating U rod; the filtering disc is moved to the outside of the sampler by the lifting assembly, so as to facilitate cleaning of foreign matters such as impurities adhering to the filtering disc, avoid the inability to move the filtering disc after sampling is completed, resulting in inconvenience in cleaning the top and bottom surfaces thereof, and thus affecting the next sampling operation, thereby improving the sampling efficiency, and the efficiency of total nitrogen monitoring is also improved accordingly.

Description

Technical Field

[0001] The invention belongs to the technical field of monitoring and sampling, and specifically relates to a water quality total nitrogen monitoring device and a monitoring method thereof. Background Art

[0002] Water quality is the abbreviation of water body quality, which indicates the physical (such as color, turbidity, odor, etc.), chemical (the content of inorganic and organic matter) and biological (bacteria, microorganisms, plankton, benthic organisms) characteristics of water and its composition; water quality is the condition of evaluating water quality, and stipulates a series of water quality parameters and water quality standards; such as water quality standards for drinking water, industrial water and fishery water.

[0003] Total nitrogen in water quality refers to the content of total nitrogen in the water body; total nitrogen refers to the sum of all forms of ammonia nitrogen in the water, including free ammonia nitrogen, ammonium nitrogen and organic nitrogen; the content of total nitrogen in water quality can reflect the degree of ammonia nitrogen pollution in the water body, which has an important impact on the ecological environment and biological growth of the water body, so monitoring of total nitrogen in water quality is also essential.

[0004] Monitoring of total nitrogen in water quality is usually carried out through the following steps:

[0005] 1. Collect water samples: Collect representative water samples at the monitoring points to ensure that the sampling process is not affected by external contamination;

[0006] 2. Sample processing: pre-process the collected water samples, usually including filtration, acidification and other operations, to ensure the accuracy of subsequent analysis;

[0007] 3. Determination of total nitrogen content: Commonly used methods include Nessler method, distillation titration method, spectrophotometry, etc. These methods can measure the total nitrogen content in water samples, thereby obtaining the total nitrogen concentration of water quality;

[0008] 4. Data analysis and recording: Analyze the measured data and compare the monitoring results with relevant water quality standards, so as to evaluate the degree of ammonia nitrogen pollution in the water body and complete the monitoring of total nitrogen in the water quality.

[0009] However, in the process of collecting water samples, the existing devices are generally equipped with facilities such as filters and plates to prevent impurities in the water from clogging the sampling port. The impurities in the water can be filtered to make the water sample entering the sampler relatively clean, which is convenient for subsequent sample processing. However, since the filtering facilities are generally installed inside the sampler and impurities will adhere to the surface of the filtering facilities during the sampling process, it is not convenient to clean the impurities adhered to the top and bottom surfaces of the filtering facilities after the sampling is completed. If brushes and other facilities are used, it is also difficult to operate due to the small internal space. At the same time, the cleaned impurities will easily fall into the sampler, which increases the workload of the staff, reduces the sampling efficiency, and reduces the monitoring efficiency accordingly. Summary of the invention

[0010] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a water quality total nitrogen monitoring device and a monitoring method thereof, which effectively solves the problems in the above background technology.

[0011] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water quality total nitrogen monitoring device, comprising a sampler, which is connected to a plurality of counterweights by bolts; a lifting square groove is provided in the sampler, and a lifting assembly is connected to the lifting square groove, the lifting assembly is used to adjust the height setting of the filter circular plate, and a driving and stabilizing unit is provided on the filter circular plate, and the driving and stabilizing unit prevents the filter circular plate from shaking when moving; the lifting assembly comprises a lifting threaded shaft arranged in the lifting square groove, a lifting bevel gear is installed on the lifting threaded shaft, the lifting bevel gear is meshed and connected to a rotating bevel gear, a rotating shaft is installed on the rotating bevel gear, the rotating shaft passes through the lifting square groove and a waterproof square box provided on the outer wall of the sampler and is connected to a rotating U rod; a blocking limit lock is provided on the rotating shaft, and the blocking limit lock is used to limit the rotating shaft.

[0012] Preferably, the driving and stabilizing auxiliary unit includes a special-shaped sliding rod symmetrically arranged on the filter circular plate, a displacement slider is installed on the special-shaped sliding rod, and the displacement slider is slidingly connected to a displacement sliding groove provided in the sampler; displacement sliding rods are symmetrically arranged in the displacement sliding groove, and the displacement sliding rods are slidingly connected to the displacement sliding rod; a displacement spring is sleeved on the displacement sliding rod, one end of the displacement spring is connected to the displacement sliding groove, and the other end is connected to the displacement slider.

[0013] Preferably, a waterproof baffle is installed in the displacement slide groove, and a guide square groove is provided in the waterproof baffle and the sampler. The guide square groove is slidably connected to the guide plate provided on the special-shaped slide rod, and a square connecting plate is provided on the guide plate. The square connecting plate is slidably connected to the pressure storage square groove provided on the guide square groove, and a stop-shift locking mechanism is provided on the pressure storage square groove.

[0014] Preferably, a lifting cross block is threadedly installed on the lifting threaded shaft, and a limit slider is symmetrically provided on the lifting cross block, and the limit slider is slidingly connected to the limit slider provided in the lifting square groove; a limit sliding column is installed in the limit sliding groove, and the limit sliding column is slidingly connected to the limit slider; the lifting cross block is connected to the filter circular plate through a multi-end connecting rod.

[0015] Preferably, the stop-shift locking mechanism includes an air outlet groove arranged on the pressure storage square groove, a bending square cylinder is installed on the air outlet groove, and the bending square cylinder is connected to a first substrate provided on the sampler; a displacement rack is slidably installed on the bending square cylinder, a positioning square plate is installed on the displacement rack, and positioning cylinders are symmetrically installed on the positioning square plate, and the two positioning cylinders are slidably connected to the positioning substrate provided on the sampler; the displacement rack is meshed with a displacement gear, a displacement threaded shaft is installed on the displacement gear, and both ends of the displacement threaded shaft are connected to a second substrate provided on the sampler; a moving cross block is symmetrically threadedly installed on the displacement threaded shaft, and the moving cross block is slidably connected to an auxiliary rod provided on the second substrate.

[0016] Preferably, a bending rod is installed on the movable horizontal block, and the bending rod is connected to a stop horizontal plate, and stop square rods are symmetrically arranged on the stop horizontal plate, and the two stop square rods are commonly connected to a clamping ring plate, and a buffer rubber pad is arranged on the clamping ring plate; an extrusion spring is sleeved on the stop square rod, one end of the extrusion spring is connected to the clamping ring plate, and the other end is connected to the stop horizontal plate, a moving contact piece is arranged in a box on the stop horizontal plate, the moving contact piece is matched and connected with a static contact piece provided on the protrusion on the clamping ring plate, and the contact between the static contact piece and the moving contact piece is connected to a control panel provided on the waterproof square box; a tension spring is sleeved on the positioning cylinder, one end of the tension spring is connected to the positioning substrate, and the other end is connected to the positioning square plate.

[0017] Preferably, the resistance limit lock includes a resistance limit gear arranged on a rotating shaft, the resistance limit gear is cooperatively connected with two resistance limit tooth blocks, the resistance limit tooth blocks are symmetrically provided with locking square plates, the locking square plates are mounted with locking square rods, the locking square rods are slidingly connected to the waterproof square box; the two locking square rods are connected by a pull ring; a locking spring is sleeved on the locking square rod, one end of the locking spring is connected to the waterproof square box, and the other end is connected to the locking square plate.

[0018] Preferably, the stop horizontal plate is also provided with a forward shifting masking unit; the forward shifting masking unit comprises an L-shaped rack arranged on the clamping ring plate, the L-shaped rack is meshed and connected with a linkage gear, a linkage rotating shaft is installed on the linkage gear, and both ends of the linkage rotating shaft are connected with a third substrate arranged on the stop horizontal plate; the linkage gear is meshed and connected with the contact rack, and a fourth substrate is symmetrically arranged on the contact rack, and the two fourth substrates are jointly connected to the contact sliding rod, and the contact sliding rod is slidingly connected with a contact base arranged on the third substrate; a contact spring is sleeved on the contact sliding rod, one end of the contact spring is connected with the contact base, and the other end is connected with the fourth substrate, and connecting L rods are symmetrically arranged on the fourth substrate, and a plurality of connecting L rods are jointly connected to the covering semicircular plate.

[0019] Preferably, an L-shaped slider is installed on the stop horizontal plate, the L-shaped slider is slidably connected to the linkage square rod, and the linkage square rod is connected to the linkage base provided on the sampler; a linkage spring is sleeved on the linkage square rod, one end of the linkage spring is connected to the linkage base, and the other end is connected to the L-shaped slider.

[0020] The present invention also provides a method for monitoring total nitrogen in water quality, comprising the following steps:

[0021] S001. By rotating the U rod, the rotating bevel gear is driven to rotate, and then the meshing lifting bevel gear is driven to rotate, so that the lifting threaded shaft rotates in the lifting square groove;

[0022] S002, the threaded lifting cross block moves within the limit position of the limit slide slot through the limit slider;

[0023] S003. The filter disc can be driven upward by the multi-end connecting rod until it is moved out of the sampler and the driving can be stopped;

[0024] S004. When the filter disc stops moving, it indicates that it is located outside the sampler, and the filter disc can be cleaned.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] (1) The lifting block moves within the upper limit of the limit slide slot through the limit slide block, and at the same time, the limit slide block is moved on it through the limit slide column, so as to avoid the shaking of the lifting block during movement, thereby improving the stability of the lifting block during movement, thereby driving the filter disc to move up through the multi-end connecting rod until it is moved out of the sampler and then the driving can be stopped, thereby moving the filter disc to the outside of the sampler, which is convenient for cleaning various impurities and other foreign matter adhering to the filter disc, and avoiding the inconvenience of cleaning the top and bottom surfaces of the filtration facility after the sampling is completed, which affects the next sampling operation. The filter disc is moved out to facilitate the cleaning of the debris on these two surfaces, and at the same time, it can avoid the cleaned debris falling into the sampler, which requires additional manpower to carry out the cleaning process, thereby reducing the work intensity of the staff, making the filter disc clean, thereby improving the sampling efficiency, so that it does not affect the next sampling operation, and the efficiency of total nitrogen monitoring is also improved accordingly;

[0027] (2) The filter disc is set to be movable, which is convenient for operators to replace filter discs with different filter sizes, reducing the limitations of the device when in use; at the same time, the operator can adjust the position of the filter disc in the sampler by operating the lifting assembly, so that the sampling speed of the sampler for the water body can be adjusted according to different sampling requirements, thereby improving the effect of the device when in use; at the same time, when the filter disc is inside the sampler for sampling, some distance is generated between the filter disc and the sampling port. This distance leads to the formation of this area, referred to as the storage area. The storage area can be set to absorb garbage and debris in the water of the test water area without affecting the sampling operation of the sampler, and the impurities in the water are introduced into the storage area, waiting for the unified cleaning treatment of the filter disc later, so that the device can also play an effect and role in purifying the water quality during the sampling process, thereby improving the effect of the device when in use; BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0029] In the attached picture:

[0030] Figure 1 This is one of the overall structural schematic diagrams of the present invention;

[0031] Figure 2 This is a schematic diagram of the lifting square trough structure of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the pressure storage square tank of the present invention;

[0033] Figure 4 This is a schematic diagram of the internal structure of the waterproof square box of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of the clamping ring plate of the present invention;

[0035] Figure 6 This is a schematic diagram of the filter disc structure of the present invention;

[0036] Figure 7 This is a schematic diagram of the bent rod structure of the present invention;

[0037] Figure 8 This is the second schematic diagram of the overall structure of the present invention;

[0038] Fig. 9 This is a schematic diagram of the waterproof baffle structure of the present invention;

[0039] Fig.10 This is a schematic diagram of the structure of the covering semicircular plate of the present invention;

[0040] Fig.11 This is a schematic diagram of the guide square groove structure of the present invention;

[0041] In the figure: 1. sampler; 2. counterweight; 3. lifting square groove; 4. filter circular plate; 5. lifting threaded shaft; 6. lifting bevel gear; 7. rotating bevel gear; 8. rotating shaft; 9. waterproof square box; 10. rotating U rod; 11. special-shaped slide bar; 12. displacement slider; 13. displacement slide groove; 14. displacement slide bar; 15. displacement spring; 16. waterproof baffle; 17. guide square groove; 18. guide plate; 19. square connecting plate; 20. pressure storage square groove; 21. lifting horizontal block; 22. limit slider; 23. limit slide groove; 24. limit slide column; 25. multi-end connecting rod; 26. air outlet groove; 27. bending square tube; 28. first substrate; 29. ​​displacement rack; 30. positioning square plate; 31. positioning cylinder; 32. positioning substrate; 33. displacement gear; 34. displacement thread axle; 35, second base plate; 36, moving horizontal block; 37, auxiliary rod; 38, bending rod; 39, stop horizontal plate; 40, stop square rod; 41, clamping ring plate; 42, buffer rubber pad; 43, extrusion spring; 44, moving contact piece; 45, static contact piece; 46, control panel; 47, stretching spring; 48, resistance limiting gear; 49, resistance limiting gear block; 50, locking square plate; 51, locking square rod; 52, locking spring; 53, L-shaped rack; 54, linkage gear; 55, linkage shaft; 56, third base plate; 57, touch rack; 58, fourth base plate; 59, touch slide bar; 60, touch base; 61, touch spring; 62, connecting L rod; 63, covering semicircular plate; 64, L-shaped slider; 65, linkage square rod; 66, linkage base; 67, linkage spring. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] Example, by Figures 1 to 11 The present invention includes a sampler 1, which is connected to a plurality of counterweights 2 by bolts, so that the counterweights 2 can be easily replaced, and the counterweights 2 can facilitate the lowering of the sampler 1 to different depths; a lifting square slot 3 is provided in the sampler 1, and the lifting square slot 3 can be provided with a shield to prevent water and garbage from entering therein; a lifting and lifting assembly is connected to the lifting square slot 3, and the lifting and lifting assembly is used to adjust the height setting of the filter circular plate 4, and a driving and stabilizing unit is provided on the filter circular plate 4, and the driving and stabilizing unit prevents the filter circular plate 4 from shaking when moving, and the filter circular plate 4 can replace filters of different precisions according to different usage conditions; the lifting and lifting assembly includes a lifting threaded shaft 5 arranged in the lifting square slot 3, and a lifting bevel gear 6 is installed on the lifting threaded shaft 5, and the lifting bevel gear 6 meshes with the lifting bevel gear 6 The rotary bevel gear 7 is connected with the rotary bevel gear 7, and a rotary shaft 8 is installed on the rotary bevel gear 7. The rotary shaft 8 passes through the lifting square groove 3 and the waterproof square box 9 provided on the outer side wall of the sampler 1 and is connected with the rotary U rod 10. The rotary U rod 10 is used to rotate the rotary shaft 8; a blocking limit lock is provided on the rotary shaft 8, and the blocking limit lock is used to limit the rotary shaft 8; a lifting cross block 21 is threadedly installed on the lifting threaded shaft 5, and a limit slider 22 is symmetrically provided on the lifting cross block 21. The limit slider 22 is slidably connected with the limit slide groove 23 provided in the lifting square groove 3; a limit slide column 24 is installed in the limit slide groove 23, and the limit slide column 24 is slidably connected with the limit slider 22; the lifting cross block 21 is connected to the filter circular plate 4 through a multi-end connecting rod 25;

[0044] When the operator needs to clean the filter disc 4, he releases the limit setting on the rotating shaft 8 by operating the blocking limit lock, and then rotates the rotating U rod 10 to drive the rotating bevel gear 7 to rotate, and then drives the meshing lifting bevel gear 6 to rotate, so that the lifting threaded shaft 5 rotates in the lifting square groove 3, and then the threaded lifting cross block 21 moves up, so that it moves in the limit position in the limit slide groove 23 through the limit slide block 22, and at the same time, the limit slide block 22 moves on it through the provided limit slide column 24, so as to avoid the lifting cross block 21 from shaking when moving, thereby improving the lifting cross block 21. The block 21 is stable when moving, so that the filter disc 4 is driven to move upward through the multi-end connecting rod 25 until it is moved out of the sampler 1 and the driving can be stopped, so that the filter disc 4 is moved to the outside of the sampler 1, which is convenient for cleaning various impurities and other foreign matters adhering to the filter disc 4, avoiding the inconvenience of cleaning the top and bottom surfaces of the filtering facility after the sampling is completed, which affects the next sampling operation. The filter disc 4 is moved out to facilitate the cleaning of the debris on these two surfaces, and at the same time, it can avoid the cleaned debris from falling into the sampler 1, which requires additional manpower to carry out the cleaning process, etc., reducing The work intensity of the staff is reduced, so that the filter disc 4 is cleaned, thereby improving the sampling efficiency, so that it does not affect the next sampling operation, and the efficiency of total nitrogen monitoring is also improved; and the lifting square groove 3 can also be provided with parts to block it to prevent water from entering it; at the same time, the filter disc 4 is set to be movable, which is convenient for operators to replace filter discs 4 with different sizes of filter ports, reducing the limitations of the device when in use; at the same time, the operator can adjust the position of the filter disc 4 in the sampler 1 by operating the lifting and lifting assembly, so that the sampler 1 can be adjusted to the water body according to different sampling needs. The sampling speed improves the effect of the device when in use; at the same time, when the filter disc 4 is inside the sampler 1 for sampling, some distance is generated between the filter disc 4 and the sampling port. These distances lead to the formation of this area, referred to as the storage area. The storage area can adsorb garbage and debris in the water in the detected water area without affecting the sampling operation of the sampler 1, and introduce impurities in the water into the storage area, waiting for the unified cleaning treatment of the filter disc later, so that the device can also play an effect and role in purifying the water quality during the sampling process, thereby improving the effect of the device when in use.

[0045] The driving and stabilizing unit of this embodiment includes a special-shaped slide bar 11 symmetrically arranged on the filter disc 4, with a certain height between the special-shaped slide bar 11 and the filter disc 4, a displacement slider 12 is installed on the special-shaped slide bar 11, and the displacement slider 12 is slidably connected with a displacement slide groove 13 provided in the sampler 1; a displacement slide bar 14 is symmetrically arranged in the displacement slide groove 13, and the displacement slide bar 14 is slidably connected with the displacement slide bar 12; a displacement spring 15 is sleeved on the displacement slide bar 14, and one end of the displacement spring 15 is connected to the displacement slide groove 13; The displacement chute 13 is connected and arranged, and the other end is connected and arranged with the displacement slider 12; a waterproof baffle 16 is installed in the displacement chute 13, which can isolate external impurities, and a guide square groove 17 is provided in the waterproof baffle 16 and the sampler 1, and the guide square groove 17 is slidably connected with a guide plate 18 provided on the special-shaped slide rod 11, and a square connecting plate 19 is provided on the guide plate 18, and the square connecting plate 19 is slidably connected with a pressure storage square groove 20 provided on the guide square groove 17, and a stop-shifting clamping mechanism is provided on the pressure storage square groove 20;

[0046] When the filter disc 4 is moving, it moves in the displacement slide groove 13 and the displacement slide rod 14 through the displacement slider 12 on the special-shaped slide rod 11, so that the displacement spring 15 is in a buffering state, which generates a certain degree of resistance to the filter disc 4 when it moves, and prevents the filter disc 4 from colliding with other objects and causing damage due to excessive speed when moving, thereby improving the service life of the filter disc 4 when in use; at the same time, supporting force and limiting force are provided at both ends of the filter disc 4 to prevent shaking during the movement, thereby improving the stability of the filter disc 4 when moving; at the same time, the waterproof baffle 16 is provided to isolate the displacement slide groove 13, so that the guide plate 18 on the special-shaped slide rod 11 moves within the guide square groove 17 on the waterproof baffle 16 without affecting the positive movement of the filter disc 4 Under normal use, it can prevent debris and water samples in the sampler 1 from entering into it and causing obstruction to movement, reducing the limitations of the device when in use; and the displacement slider 12 is connected to the filter disc 4 through the special-shaped slide rod 11, with a certain degree of height difference, so that the displacement slider 12 can move the filter disc 4 out by moving in the sampler 1; it is worth mentioning that the end points of the special-shaped slide rod 11 are elastic, similar to the form of a spring telescopic rod, which means that the connection with the filter disc 4 has buffering properties, which can make the impact force generated when impurities and other objects contact the filter disc 4 when the sampler 1 is sampling in water. The above-mentioned buffering performance can be absorbed, reducing the impact force on the sampler 1 and the filter disc 4, and improving the stability of the device and the filter disc 4 when in use.

[0047] The stop-shift locking mechanism of this embodiment includes an air outlet groove 26 arranged on the pressure storage square groove 20, and a bending square cylinder 27 is installed on the air outlet groove 26. It is worth mentioning that the gas in the pressure storage square groove 20 is all in the bending square cylinder 27; the bending square cylinder 27 is connected to the first base plate 28 provided on the sampler 1; a displacement rack 29 is slidably installed on the bending square cylinder 27, a positioning square plate 30 is installed on the displacement rack 29, and a positioning cylinder 31 is symmetrically installed on the positioning square plate 30, and the two positioning cylinders 31 are slidably connected to the positioning base plate 32 provided on the sampler 1; the displacement rack 29 is meshed and connected A displacement gear 33 is mounted on the displacement gear 33. A displacement threaded shaft 34 is provided at both ends of the displacement threaded shaft 34 with threads in opposite directions. Both ends of the displacement threaded shaft 34 are connected to a second base plate 35 provided on the sampler 1. A moving cross block 36 is symmetrically threadedly mounted on the displacement threaded shaft 34. The moving cross block 36 is slidably connected to an auxiliary rod 37 provided on the second base plate 35. A bending rod 38 is mounted on the moving cross block 36. A stop cross plate 39 is connected to the bending rod 38. Stop square rods 40 are symmetrically provided on the stop cross plate 39. The two stop square rods 40 are connected together to clamp the two stop square rods 40. Ring plate 41, a buffer rubber pad 42 is arranged on the clamping ring plate 41, and the buffer rubber pad 42 can increase the friction force between the clamping ring plate 41 and the filter circular plate 4; the stop square rod 40 is sleeved with an extrusion spring 43, one end of the extrusion spring 43 is connected to the clamping ring plate 41, and the other end is connected to the stop horizontal plate 39, and a moving contact piece 44 is arranged in a box on the stop horizontal plate 39, and the moving contact piece 44 is matched with a static contact piece 45 arranged on the protrusion on the clamping ring plate 41, and the contact between the static contact piece 45 and the moving contact piece 44 is connected to a control panel 46 arranged on the waterproof square box 9, and the control panel 4 6 The main body is arranged in a waterproof square box 9, and the surface buttons are also waterproof; a tension spring 47 is sleeved on the positioning cylinder 31, one end of the tension spring 47 is connected to the positioning substrate 32, and the other end is connected to the positioning square plate 30; an L-shaped slider 64 is installed on the stop horizontal plate 39, and the L-shaped slider 64 is slidably connected to the linkage square rod 65, and the linkage square rod 65 is connected to the linkage base 66 provided on the sampler 1; a linkage spring 67 is sleeved on the linkage square rod 65, one end of the linkage spring 67 is connected to the linkage base 66, and the other end is connected to the L-shaped slider 64;

[0048] When the filter disc 4 is in the process of moving upward, the guide plate 18 is limitedly moved in the pressure storage square groove 20 through the square connecting plate 19, and then the gas in the bent square cylinder 27 connected to the pressure storage square groove 20 enters the guide square groove 17 through the gas outlet groove 26 and the pressure storage square groove 20, thereby attracting the displacement rack 29 to move in the bent square cylinder 27, so that it is limitedly moved on the positioning base plate 32 through the positioning cylinder 31 on the positioning square plate 30, and the tension spring 47 is in a buffering state, so that the displacement rack 29 meshes with the displacement gear 33 to rotate, and then drives the displacement threaded shaft 34 to rotate. Since the threads at both ends of the displacement threaded shaft 34 are opposite, the two displacement racks 29 mesh with the threaded connection. The movable cross block 36 moves within the upper limit of the auxiliary rod 37, and drives the two stop cross plates 39 to move towards each other through the two bent rods 38, and drives the clamping ring plate 41 to move through the stop square rod 40 and the extrusion spring 43 until it contacts the rising filter disc 4. At this time, the movable cross block 36 continues to move. Since the two clamping ring plates 41 are already connected to the filter disc 4, they are relatively static at this time, so that the stop cross plate 39 moves within the upper limit of the stop square rod 40, and the extrusion spring 43 is in a buffering state until the resistance generated is greater than the power source of the device, that is, the force of rotating the rotating shaft 8, indicating that the clamping setting of the filter disc 4 has been completed, thereby the filter disc 4 is clamped. The circular plate 4 is limited in the current position, and the clamping force brought about avoids the shaking of the filter circular plate 4 during cleaning, thereby improving its stability during cleaning. At the same time, since the two ends of the filter circular plate 4 are limited, it can avoid the damage caused by excessive force applied during cleaning, thereby reducing the limitations of the device during use; at the same time, when the stop cross plate 39 is moving, it is limited by the linkage square rod 65 through the L-shaped slider 64 and moves toward each other, and the linkage spring 67 is in a buffering state, which supports and limits the stop cross plate 39, avoids shaking during movement, and improves the stability of the clamping ring plate 41 during movement; when the stop cross plate 39 is moving, it is limited by the linkage square rod 65 through the L-shaped slider 64, and the linkage spring 67 is in a buffering state, which supports and limits the stop cross plate 39, avoids shaking during movement, and improves the stability of the clamping ring plate 41 during movement; When the horizontal plate 39 moves to the upper limit position of the stop square rod 40, it means that the resistance of the operator to rotating the rotating shaft 8 is getting greater and greater, so that the box on the horizontal plate 39 is gradually approaching the protrusion on the clamping ring plate 41. When the static contact piece 45 on the protrusion of the clamping ring plate 41 contacts the dynamic contact piece 44 in the box of the stop horizontal plate 39, it indicates that the clamping force on the filter disc 4 has reached the maximum, thereby sending a signal to the control panel 46, and sending an alarm signal through the built-in signal unit to remind the operator who is applying the rotation force, so as to avoid damage and overload caused by excessive force of the operator, thereby improving the service life of the device and further reducing the limitations during use.

[0049] The blocking limit lock of this embodiment includes a blocking gear 48 arranged on the rotating shaft 8, and the blocking gear 48 is matched and connected with two blocking tooth blocks 49, and the blocking tooth blocks 49 are meshed with the blocking gear 48. The blocking tooth blocks 49 are symmetrically provided with locking square plates 50, and the locking square plates 50 are installed with locking square rods 51, and the locking square rods 51 are slidably connected with the waterproof square box 9; the two locking square rods 51 are connected by a pull ring, and the pull ring is a circular ring to avoid injury to the opponent when pulling; the locking square rod 51 is sleeved with a locking spring 52, and one end of the locking spring 52 is connected with the waterproof square box 9, and the other end is connected with the locking square plate 50;

[0050] When it is necessary to use the lifting assembly, the two pull rings are pulled outward so that the locking square rod 51 moves within the upper limit of the waterproof square box 9, and the locking spring 52 is in a buffering state, thereby causing the two limiting tooth blocks 49 to move relative to each other and no longer engage with the limiting gear 48, thereby releasing the limiting setting of the rotating shaft 8, so that the filter disc 4 on the lifting assembly can move normally; when the position adjustment of the filter disc 4 is completed, or it has been moved to the outside of the sampler 1, the pull ring is released, and the limiting tooth block 49 is reset and moved by the resetting of the locking spring 52, so that the two limiting tooth blocks 49 move toward each other, thereby connecting with the limiting gear 48, completing the limiting setting of the rotating shaft 8, so that the filter disc 4 can be stably maintained in the current position, avoiding the phenomenon of movement caused by non-human factors, reducing the limitations of the device during use, thereby improving the stability of the filter disc 4 during use, and avoiding the phenomenon of falling off or resetting movement caused by excessive cleaning force.

[0051] The stop horizontal plate 39 of the present embodiment is also provided with a shifting masking unit; the shifting masking unit comprises an L-shaped rack 53 provided on the clamping ring plate 41, the L-shaped rack 53 is meshedly connected to the linkage gear 54, the linkage gear 54 is provided with a linkage shaft 55, and the two ends of the linkage shaft 55 are connected to the third base plate 56 provided on the stop horizontal plate 39; the linkage gear 54 is meshedly connected to the contact rack 57, the contact rack 57 is symmetrically provided with a fourth base plate 58, the two fourth base plates 58 are jointly connected to the contact slide bar 59, and the contact slide bar 59 is slidably connected to the contact base 60 provided on the third base plate 56; the contact slide bar 59 is sleeved with a contact spring 61, one end of the contact spring 61 is connected to the contact base 60, and the other end is connected to the fourth base plate 58, and the fourth base plate 58 is symmetrically provided with a connecting L rod 62, and a plurality of connecting L rods 62 are jointly connected to the covering semicircular plate 63, and the size of the covering semicircular plate 63 is the same as the size of the sampling port;

[0052] When the stop cross plate 39 moves to the upper limit position of the stop square rod 40, the linkage gear 54 meshing with the L-shaped rack 53 rotates, so that the meshing trigger rack 57 moves to the upper limit position of the trigger base 60 through the trigger slide bar 59, so that the trigger spring 61 is in a buffering state, thereby driving the covering semicircular plate 63 to move, so that the two covering semicircular plates 63 move toward each other, covering the sampling port of the sampler 1, which can prevent the impurities and garbage cleaned by the filter circular plate 4 from falling into the interior of the sampler 1, thereby increasing the burden on the staff, thereby reducing the work intensity of the staff, and at the same time, it can prevent external dust and other objects from entering when cleaning the filter circular plate 4. Entering into the sampler 1 causes the value of the next sampling test to change, which reduces the limitations during use and improves the accuracy of sampling detection, so that the monitored total nitrogen value is accurate; it is worth mentioning that there is a distance between the covering semicircular plate 63 and the clamping ring plate 41. When the stop horizontal plate 39 has not moved on the stop square rod 40, the clamping ring plate 41 is in contact with the filter circular plate 4, and the covering semicircular plate 63 has not yet moved to the top of the sampler 1, avoiding interference and obstruction during movement; and the exposed parts on the device can all be protected during actual production and use, which increases the aesthetics and can avoid wading during the sampling process, and the parts are all waterproof.

[0053] The present invention also provides a method for monitoring total nitrogen in water quality, comprising the following steps:

[0054] S001. By rotating the U rod 10, the rotating bevel gear 7 is driven to rotate, and then the meshing lifting bevel gear 6 is driven to rotate, so that the lifting threaded shaft 5 rotates in the lifting square groove 3;

[0055] S002, the threaded lifting horizontal block 21 moves in the limiting position in the limiting slide groove 23 through the limiting slider 22;

[0056] S003, the filter disc 4 can be driven to move upward by the multi-end connecting rod 25 until it is moved out of the sampler 1 and the driving can be stopped;

[0057] S004. When the filter disc 4 stops moving, it indicates that it is located outside the sampler 1, and the filter disc 4 can be cleaned.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water quality total nitrogen monitoring device, characterized in that: The sampler (1) comprises a sampler (1), wherein the sampler (1) is connected to a plurality of counterweights (2) by means of bolts; a lifting square groove (3) is provided in the sampler (1), a lifting assembly is connected to the lifting square groove (3), the lifting assembly is used to adjust the height of a filter circular plate (4), a driving and stabilizing unit is provided on the filter circular plate (4), and the driving and stabilizing unit prevents the filter circular plate (4) from shaking when moving; The lifting assembly comprises a lifting threaded shaft (5) arranged in the lifting square groove (3), a lifting bevel gear (6) being mounted on the lifting threaded shaft (5), the lifting bevel gear (6) being meshingly connected to a rotating bevel gear (7), a rotating shaft (8) being mounted on the rotating bevel gear (7), the rotating shaft (8) passing through the lifting square groove (3) and a waterproof square box (9) provided on the outer wall of the sampler (1) and being connected to a rotating U rod (10); a blocking limit lock is provided on the rotating shaft (8), and the blocking limit lock is used to limit the position of the rotating shaft (8); The driving and stabilizing unit comprises a special-shaped slide bar (11) symmetrically arranged on the filter disc (4), a displacement slider (12) being mounted on the special-shaped slide bar (11), the displacement slider (12) being slidably connected to a displacement slide groove (13) arranged in the sampler (1); a displacement slide bar (14) being symmetrically arranged in the displacement slide groove (13), the displacement slide bar (14) being slidably connected to the displacement slide bar (12); a displacement spring (15) being sleeved on the displacement slide bar (14), one end of the displacement spring (15) being connected to the displacement slide groove (13), and the other end being connected to the displacement slider (12); A waterproof baffle (16) is installed in the displacement chute (13), a guide square groove (17) is provided in the waterproof baffle (16) and the sampler (1), the guide square groove (17) is slidably connected to a guide plate (18) provided on the special-shaped slide rod (11), a square connecting plate (19) is provided on the guide plate (18), the square connecting plate (19) is slidably connected to a pressure storage square groove (20) provided on the guide square groove (17), and a stop-movement locking mechanism is provided on the pressure storage square groove (20); A lifting cross block (21) is threadedly mounted on the lifting threaded shaft (5), and a limit slider (22) is symmetrically mounted on the lifting cross block (21), and the limit slider (22) is slidably connected to a limit slider groove (23) provided in the lifting square groove (3); a limit slider (24) is mounted in the limit slider groove (23), and the limit slider (24) is slidably connected to the limit slider (22); the lifting cross block (21) and the filter circular plate (4) are connected via a multi-end connecting rod (25).

2. A water quality total nitrogen monitoring device according to claim 1, characterized in that: The stop-shift locking mechanism comprises an air outlet groove (26) arranged on the pressure storage square groove (20), a bent square cylinder (27) being installed on the air outlet groove (26), and the bent square cylinder (27) being connected to a first base plate (28) provided on the sampler (1); a displacement rack (29) being slidably installed on the bent square cylinder (27), a positioning square plate (30) being installed on the displacement rack (29), and positioning cylinders (31) being symmetrically installed on the positioning square plate (30), and the two positioning cylinders (31) being slidably installed together. The displacement rack (29) is meshingly connected to a displacement gear (33), a displacement threaded shaft (34) is mounted on the displacement gear (33), and both ends of the displacement threaded shaft (34) are connected to a second base plate (35) provided on the sampler (1); a moving cross block (36) is symmetrically threadedly mounted on the displacement threaded shaft (34), and the moving cross block (36) is slidably connected to an auxiliary rod (37) provided on the second base plate (35).

3. A water quality total nitrogen monitoring device according to claim 2, characterized in that: The movable horizontal block (36) is provided with a bending rod (38), the bending rod (38) is connected to a stop horizontal plate (39), the stop horizontal plate (39) is symmetrically provided with a stop square rod (40), the two stop square rods (40) are connected to a clamping ring plate (41), and a buffer rubber pad (42) is provided on the clamping ring plate (41); the stop square rod (40) is sleeved with an extrusion spring (43), one end of the extrusion spring (43) is connected to the clamping ring plate (41), and the other end is connected to the stop horizontal plate (39). A moving contact piece (44) is provided in a box on the stop horizontal plate (39), the moving contact piece (44) is matched and connected with a stationary contact piece (45) provided on a protrusion on the clamping ring plate (41), and the contact between the stationary contact piece (45) and the moving contact piece (44) is connected with a control panel (46) provided on the waterproof square box (9); a tension spring (47) is sleeved on the positioning cylinder (31), one end of the tension spring (47) is connected to the positioning base plate (32), and the other end is connected to the positioning square plate (30).

4. A water quality total nitrogen monitoring device according to claim 1, characterized in that: The blocking limit lock comprises a blocking gear (48) arranged on the rotating shaft (8), the blocking gear (48) being cooperatively connected to two blocking tooth blocks (49), a locking square plate (50) being symmetrically arranged on the blocking tooth blocks (49), a locking square rod (51) being mounted on the locking square plate (50), the locking square rod (51) being slidably connected to the waterproof square box (9); the two locking square rods (51) are connected via a pull ring; a locking spring (52) is sleeved on the locking square rod (51), one end of the locking spring (52) being connected to the waterproof square box (9), and the other end of the locking spring (52) being connected to the locking square plate (50).

5. A water quality total nitrogen monitoring device according to claim 3, characterized in that: The stop transverse plate (39) is also provided with a shifting masking unit; the shifting masking unit comprises an L-shaped rack (53) provided on the clamping ring plate (41); the L-shaped rack (53) is meshingly connected to a linkage gear (54); a linkage rotating shaft (55) is mounted on the linkage gear (54); both ends of the linkage rotating shaft (55) are connected to a third base plate (56) provided on the stop transverse plate (39); the linkage gear (54) is meshingly connected to a contact rack (57); a fourth base plate ( 58), the two fourth substrates (58) are commonly connected to a touch slide bar (59), and the touch slide bar (59) is slidably connected to a touch base (60) provided on the third substrate (56); a touch spring (61) is sleeved on the touch slide bar (59), one end of the touch spring (61) is connected to the touch base (60), and the other end is connected to the fourth substrate (58), and the fourth substrate (58) is symmetrically provided with connecting L rods (62), and a plurality of connecting L rods (62) are commonly connected to a covering semicircular plate (63).

6. A water quality total nitrogen monitoring device according to claim 3, characterized in that: An L-shaped slider (64) is mounted on the stop horizontal plate (39), the L-shaped slider (64) is slidably connected to a linkage square rod (65), and the linkage square rod (65) is connected to a linkage base (66) provided on the sampler (1); a linkage spring (67) is sleeved on the linkage square rod (65), one end of the linkage spring (67) is connected to the linkage base (66), and the other end is connected to the L-shaped slider (64).

7. A method for monitoring total nitrogen in water quality, using the device for monitoring total nitrogen in water quality as claimed in claim 1, characterized in that: Includes steps: S001, by rotating the rotating U rod (10), the rotating bevel gear (7) is driven to rotate, and then the meshing lifting bevel gear (6) is driven to rotate, so that the lifting threaded shaft (5) rotates in the lifting square groove (3); S002, the threaded lifting horizontal block (21) moves to the upper limit position in the limiting slide groove (23) through the limiting slider (22); S003, the filter disc (4) can be driven to move upward by the multi-end connecting rod (25) until it is moved out of the sampler (1) and the driving can be stopped; S004. When the filter disc (4) stops moving, it indicates that it is located outside the sampler (1), and the filter disc (4) can be cleaned.

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