A sampling device for sewage quality detection

Abstract

The present invention discloses a sampling device for sewage water quality detection, which relates to the technical field of sewage treatment, and includes: a moving mechanism, the moving mechanism includes a support plate, a moving motor, a controller, a rotating rod, a first gear, an impeller, and a second gear; a storage mechanism is provided on the top surface of the support plate, the storage mechanism includes a ring body, and the top surface array of the ring body is provided with a plurality of placement grooves; an adjustment mechanism is provided inside the support plate, the adjustment mechanism includes a column, and a rotating motor and a fifth gear are installed inside the column; a sampling mechanism is installed inside the column, the sampling mechanism includes a sampling tube, a toothed ring is provided on the surface of the sampling tube, the fifth gear is meshed and connected with the toothed ring, and a shunt tube is connected to the top of the sampling tube; a sample storage mechanism is placed in each of the placement grooves. The present application has the advantages of reaching the sewage sampling point according to a predetermined route and automatically collecting samples.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and more specifically to a sampling device for sewage quality detection. Background Art

[0002] With the rapid development of industry, water pollution has become a major environmental issue worldwide. Industrial activities, urbanization and agricultural practices have introduced various harmful substances to varying degrees, such as heavy metals, chemicals and microplastics. These pollutants pose a serious threat to the ecological balance of water bodies and human health. In order to restore the health of water bodies and protect water resources, it is necessary to take active and effective measures.

[0003] In this context, the collection and testing of sewage has become an important part of environmental monitoring and management. Sampling sewage using a sampling device is one of the key steps in assessing water quality. The sampling device can accurately and reproducibly obtain water samples for chemical, biological and physical analysis. These analysis results not only help to understand the concentration of different pollutants in the water, but also to assess their potential impact on the environment and ecosystem.

[0004] When sampling sewage in large lakes or rivers, some sampling points are far away from the shore, and workers are usually required to drive a small boat with sampling equipment to carry out sampling operations. This method not only requires workers to spend a lot of time and effort, but also for workers who are not good at swimming, driving a boat has certain safety risks; the sampling equipment currently carried by workers is simple in structure and usually requires workers to operate manually for sampling, which is troublesome. Therefore, it is necessary to propose a sampling device for sewage quality testing to solve the above problems. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a sampling device for sewage quality testing, which can solve the problem that when testing sewage in a large lake or river where the testing point is far from the shore, the staff need to drive a small boat to carry the sampling equipment for sampling, which is inefficient and easily threatens the life safety of the staff. It has the advantages of reaching the sewage sampling point according to a predetermined route and automatically collecting samples.

[0006] To solve the above problems, the present invention adopts the following technical solutions:

[0007] A sampling device for sewage quality detection, comprising:

[0008] A moving mechanism, wherein the moving mechanism comprises a supporting plate, a moving motor and a controller are installed on the top surface of the supporting plate, the moving motor and the controller are electrically connected, a rotating rod is installed on the output end of the moving motor, the rotating rod passes through the supporting plate, a first gear is installed on the bottom end of the rotating rod, an impeller is arranged at the bottom of the supporting plate, a second gear is installed on the side of the impeller, and the first gear is meshed and connected with the second gear;

[0009] The top surface of the support plate is provided with a storage mechanism, the storage mechanism comprises a ring body for fixing the top surface of the support plate, and the top surface array of the ring body is provided with a plurality of placement grooves;

[0010] An adjusting mechanism is arranged inside the supporting plate, and the adjusting mechanism comprises a column installed in the middle of the supporting plate, a rotating motor is installed inside the column, and a fifth gear is installed at the output end of the rotating motor;

[0011] A sampling mechanism is installed inside the column, and the sampling mechanism includes a sampling tube running through the middle of the column, a gear ring is provided on the surface of the sampling tube, the fifth gear is meshed and connected with the gear ring, and a shunt tube is connected to the top of the sampling tube;

[0012] A sample storage mechanism is placed in each placement slot, and the sample storage mechanism comprises a sample storage tube placed inside each placement slot.

[0013] As a preferred solution of the present invention, the moving mechanism also includes a guide cover installed on the bottom of the support plate, the impeller is rotatably connected to the inside of the guide cover, an outer cover is fixed to the side of the guide cover, and the first gear and the second gear are both rotatably connected to the inside of the outer cover.

[0014] As a preferred solution of the present invention, a changing mechanism is provided on the support plate, and the changing mechanism includes a top cover installed on the top surface of the support plate, a motor is installed inside the top cover, a third gear is installed at the output end of the motor, and a fourth gear is also rotatably connected inside the top cover, the third gear is meshingly connected with the fourth gear, a connecting rod is connected to the bottom of the fourth gear, and the connecting rod passes through the support plate, and a changing plate is installed at the bottom end of the connecting rod.

[0015] As a preferred solution of the present invention, the storage mechanism further comprises an annular groove arranged on the top surface of the ring body, and a limiting groove is arranged on the outer side of the annular groove.

[0016] As a preferred solution of the present invention, a protective mechanism is provided on the inner side of the ring body, and the protective mechanism includes a bracket fixed in an array on the inner side of the ring body, a slide cylinder is fixed to the bottom of the bracket, a first spring is installed inside the slide cylinder, a first long rod is elastically connected to the inside of the slide cylinder through the first spring, a first wedge block is fixed to the top of the first long rod, an adjusting box is fixed to the top surface of the bracket, a slide plate is slidably connected to the inside of the bracket, a second spring is installed inside the adjusting box, and the slide plate is elastically connected to the inside of the adjusting box through the second spring, an extrusion block is fixed to the bottom surface of one end of the slide plate, and the first wedge block abuts against the extrusion block.

[0017] As a preferred solution of the present invention, the adjustment mechanism also includes a third spring installed inside the column, a second long rod passes through the column, and the second long rod is elastically connected to the inside of the column through the third spring, and a second wedge is fixed to the bottom end of the second long rod.

[0018] As a preferred solution of the present invention, the sampling mechanism also includes a water pump installed at the lower section of the sampling tube, a disc is fixed in the middle of the sampling tube, a protrusion is fixed on the top surface of the disc, a plurality of downward pressure blocks are fixed in an array on the bottom surface of the disc, a limiting hook is fixed at the bottom end of the diversion tube, the limiting hook is slidably connected in the limiting groove, a guide port is also provided at the bottom end of the diversion tube, a fourth spring is installed inside the guide port, and the docking joint is elastically connected to the inside of the guide port through the fourth spring.

[0019] As a preferred solution of the present invention, a closing mechanism is provided on the bottom surface of the column, and the closing mechanism includes a support arm fixed to the bottom surface of the column, a shell is fixed to the bottom end of the support arm, a closing plate is slidably connected in the shell, a fifth spring is installed in the shell, and the closing plate is elastically connected to the shell through the fifth spring, one end of the top surface of the closing plate abuts against the bottom end of the sampling tube, a push block is fixed to the other end of the top surface of the closing plate, and the second wedge block abuts against the push block.

[0020] As a preferred solution of the present invention, the sample storage mechanism also includes a top ring arranged on the top of the sample storage tube, a closing cylinder is fixed inside the top of the sample storage tube, a sixth spring is installed in the closing cylinder, the docking cylinder is elastically connected to the interior of the closing cylinder through the sixth spring, and a plurality of drain holes are evenly arranged on the side wall of the bottom end of the docking cylinder.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] 1. Set up a support plate that can float on the water surface, and use a mobile motor to drive the impeller to rotate, so that the support plate drives the sampling mechanism and the sample storage mechanism to reach the designated sewage sample collection area along the established route, and automatically collect water samples through the sampling tube. The sewage sample collection process not only avoids the tediousness and danger of staff personally arriving at the sampling area during traditional sewage sampling, but also enables efficient and accurate sampling, greatly improving the efficiency of sewage sampling; at the same time, multiple placement slots are set on the ring body, which can store multiple sample storage tubes at one time, avoiding the problem of frequent return of the equipment to replace the sampling bottle, and further improving the efficiency of sewage sampling; and in the same batch of sewage sampling, multiple sampling points in the same water area can be selected, or multiple bottles can be collected in the same area, which is more flexible and more universal.

[0023] 2. Multiple protective mechanisms are arranged in a circular array on the inner wall of the ring body, which can close the top of each sample storage tube to prevent sewage from splashing into the interior of the docking tube when the support plate moves on the water surface. During the rotation of the sampling tube, the disc can drive the protrusion and the lower pressure block to rotate synchronously. Each time before the docking joint at the end of the shunt tube is connected to the corresponding docking tube, the protrusion will push the first long rod, so that the slide plate slides away from the ring body, thereby releasing the closure of the sample storage tube and allowing the docking joint to be smoothly connected to the corresponding docking tube. A closing mechanism is arranged at the bottom of the sampling tube to prevent debris from entering the bottom of the sampling tube, thereby contaminating and clogging the sampling tube. When the disc rotates, it also drives the lower pressure block to rotate. Whenever the docking joint at the end of the shunt tube is connected to the corresponding docking tube, the lower pressure block squeezes the second long rod, so that the closing plate slides away from the sampling tube, thereby releasing the closure of the bottom of the sampling tube, so that the sampling tube can smoothly absorb the sewage sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall top view structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the overall bottom-up structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the overall cutaway structure of the present invention;

[0027] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0028] Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle;

[0029] Figure 6 It is a schematic diagram of the cross-section structure of the regulating mechanism and the sampling mechanism of the present invention;

[0030] Figure 7 For the present invention Figure 6 The enlarged structural diagram at C in the middle;

[0031] Figure 8 For the present invention Figure 6 The enlarged structural diagram at D in the middle;

[0032] Fig. 9 It is a schematic diagram of the sampling mechanism structure of the present invention;

[0033] Fig.10 It is a schematic diagram of the cutaway structure of the protection mechanism of the present invention;

[0034] Fig.11 It is a schematic diagram of the cutaway structure of the sample storage mechanism of the present invention;

[0035] Fig.12 It is a schematic diagram of the connection structure between the sampling mechanism and the sample storage mechanism of the present invention.

[0036] Description of the numbers in the figure:

[0037] 1. Moving mechanism; 11. Support plate; 12. Moving motor; 13. Controller; 14. Guide cover; 15. Rotating rod; 16. Outer cover; 17. First gear; 18. Second gear; 19. Impeller; 2. Direction-changing mechanism; 21. Top cover; 22. Motor; 23. Third gear; 24. Fourth gear; 25. Connecting rod; 26. Direction-changing plate; 3. Preservation mechanism; 31. Ring body; 32. Ring groove; 33. Limiting groove; 34. Placement groove; 4. Protection mechanism; 41. Bracket; 42. Sliding cylinder; 43. First long rod; 44. First spring; 45. First wedge block; 46. Adjustment box; 47. Sliding plate; 48. Second spring; 49. Extrusion block; 5 , adjusting mechanism; 51, column; 52, rotating motor; 53, fifth gear; 54, second long rod; 55, third spring; 56, second wedge; 6, sampling mechanism; 61, sampling tube; 62, water pump; 63, gear ring; 64, disc; 65, bump; 66, lower pressure block; 67, shunt pipe; 68, limit hook; 69, guide port; 691, fourth spring; 692, docking joint; 7, closing mechanism; 71, support arm; 72, shell; 73, fifth spring; 74, closing plate; 75, push block; 8, sample storage mechanism; 81, sample storage tube; 82, top ring; 83, closing cylinder; 84, docking cylinder; 85, sixth spring; 86, drain hole. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely 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, not all of them. 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.

[0039] Example 1, please refer to Figure 1-Figure 12 As shown, the present invention discloses a sampling device for sewage water quality detection, comprising a moving mechanism 1, the moving mechanism 1 comprising a supporting plate 11, a moving motor 12 and a controller 13 are installed on the top surface of the supporting plate 11, the moving motor 12 and the controller 13 are electrically connected, a rotating rod 15 is installed on the output end of the moving motor 12, the rotating rod 15 penetrates the supporting plate 11, a first gear 17 is installed at the bottom end of the rotating rod 15, an impeller 19 is arranged at the bottom of the supporting plate 11, a second gear 18 is installed on the side of the impeller 19, and the first gear 17 is meshed and connected with the second gear 18;

[0040] The top surface of the support plate 11 is provided with a storage mechanism 3, and the storage mechanism 3 includes a ring body 31 fixed to the top surface of the support plate 11, and a plurality of placement grooves 34 are arranged in an array on the top surface of the ring body 31;

[0041] An adjusting mechanism 5 is provided inside the supporting plate 11. The adjusting mechanism 5 comprises a column 51 installed in the middle of the supporting plate 11. A rotating motor 52 is installed inside the column 51. A fifth gear 53 is installed at the output end of the rotating motor 52.

[0042] The column 51 is provided with a sampling mechanism 6, which includes a sampling tube 61 that runs through the middle of the column 51. A gear ring 63 is provided on the surface of the sampling tube 61. The fifth gear 53 is meshedly connected with the gear ring 63. A shunt tube 67 is connected to the top of the sampling tube 61.

[0043] A sample storage mechanism 8 is placed in each placement slot 34 , and the sample storage mechanism 8 includes a sample storage tube 81 placed inside each placement slot 34 .

[0044] The top surface array of the ring body 31 is provided with a plurality of placement slots 34, which can accommodate a plurality of sample storage tubes 81 at the same time, thereby realizing multi-point sampling. When sampling sewage, the staff puts the support plate 11 on the water surface. The support plate 11 is made of lightweight plastic and can support other mechanisms to float on the water surface. The staff wirelessly connects with the controller 13 through a remote controller to send instructions to the controller 13. First, the controller 13 controls the mobile motor 12 to start, and the mobile motor 12 drives the first gear 17 to rotate through the rotating rod 15. The first gear 17 drives the impeller 19 to rotate through the second gear 18, thereby moving the support plate 11 on the water surface.

[0045] After arriving at the sampling area, the controller 13 turns off the moving motor 12 and starts the rotating motor 52 inside the column 51. The rotating motor 52 drives the sampling tube 61 to rotate through the cooperation of the fifth gear 53 and the gear ring 63. The sampling tube 61 drives the shunt tube 67 to move in a circle, so that the guide port 69 at its end is connected with the sample storage tube 81 in the corresponding placement groove 34. Then the controller 13 turns off the rotating motor 52 and starts the water pump 62 to suck the sewage sample in the sampling area into the sampling tube 61, and enters the corresponding sample storage tube 81 through the sampling tube 61 and the shunt tube 67 for storage. The whole process is carried out in an orderly manner according to the established procedures, and the staff monitors in real time through the remote control equipment, which not only avoids the tediousness and danger of the staff personally arriving at the sampling area during traditional sewage sampling, but also enables efficient and accurate sampling, greatly improving the efficiency of sewage sampling; at the same time, a plurality of placement slots 34 are arranged on the ring body 31, which can store a plurality of sample storage tubes 81 at a time, avoiding the problem of frequent return of the equipment to replace the sampling bottles, and further improving the efficiency of sewage sampling; and in the same batch of sewage sampling, multiple sampling points in the same water area can be selected, or multiple bottles can be collected in the same area, which makes the selection more flexible and more universal.

[0046] Example 2: This example is an explanation based on Example 1. For details, please refer to Figure 1-Figure 12 The moving mechanism 1 also includes a guide cover 14 installed at the bottom of the supporting plate 11, an impeller 19 is rotatably connected to the inside of the guide cover 14, an outer cover 16 is fixed to the side of the guide cover 14, and a first gear 17 and a second gear 18 are both rotatably connected to the inside of the outer cover 16.

[0047] A direction-changing mechanism 2 is provided on the support plate 11, and the direction-changing mechanism 2 includes a top cover 21 installed on the top surface of the support plate 11, a motor 22 is installed inside the top cover 21, a third gear 23 is installed at the output end of the motor 22, and a fourth gear 24 is rotatably connected inside the top cover 21. The third gear 23 is meshed with the fourth gear 24, and a connecting rod 25 is connected to the bottom of the fourth gear 24, and the connecting rod 25 passes through the support plate 11, and a direction-changing plate 26 is installed at the bottom end of the connecting rod 25.

[0048] The storage mechanism 3 further includes an annular groove 32 disposed on the top surface of the ring body 31 , and a limiting groove 33 is disposed on the outer side of the annular groove 32 .

[0049] The adjustment mechanism 5 also includes a third spring 55 installed inside the column 51 . The second long rod 54 passes through the column 51 , and the second long rod 54 is elastically connected to the inside of the column 51 through the third spring 55 . A second wedge block 56 is fixed to the bottom end of the second long rod 54 .

[0050] The sampling mechanism 6 also includes a water pump 62 installed in the lower section of the sampling tube 61, a disc 64 is fixed in the middle of the sampling tube 61, a protrusion 65 is fixed on the top surface of the disc 64, a plurality of downward pressing blocks 66 are fixed in an array on the bottom surface of the disc 64, a limiting hook 68 is fixed on the bottom end of the shunt tube 67, the limiting hook 68 is slidably connected in the limiting groove 33, a guide port 69 is also provided on the bottom end of the shunt tube 67, a fourth spring 691 is installed inside the guide port 69, and a docking joint 692 is elastically connected to the inside of the guide port 69 through the fourth spring 691.

[0051] The sample storage mechanism 8 also includes a top ring 82 arranged on the top of the sample storage tube 81, a closed tube 83 is fixed inside the top of the sample storage tube 81, a sixth spring 85 is installed in the closed tube 83, a docking tube 84 is elastically connected to the inside of the closed tube 83 through the sixth spring 85, and a plurality of drain holes 86 are evenly arranged on the side wall of the bottom end of the docking tube 84.

[0052] The first gear 17 and the second gear 18 rotate in the outer cover 16 to avoid water pollution and corrosion, thereby protecting the equipment; the impeller 19 rotates in the guide cover 14 to improve the propulsion ability of the impeller 19 and ensure the moving speed of the support plate 11.

[0053] The controller 13 controls the mobile motor 12 and the motor 22 inside the top cover 21 at the same time, so that the motor 22 drives the third gear 23 to rotate. The third gear 23 cooperates with the fourth gear 24 to drive the connecting rod 25 to rotate and drive the changing plate 26 to swing in the water body, thereby changing the moving direction of the support plate 11 as needed, so that the support plate 11 and other mechanisms can accurately reach the predetermined sewage sampling area.

[0054] The rotating motor 52 drives the sampling tube 61 to rotate through the cooperation of the fifth gear 53 and the gear ring 63, so that the end of the shunt tube 67 rotates in a circle on the top surface of the ring body 31, and the limit hook 68 on the bottom surface of the top of the shunt tube 67 slides in the limit groove 33. Initially, the fourth spring 691 inside the guide port 69 pushes the docking joint 692, so that the docking joint 692 protrudes from the bottom of the guide port 69. In the process of the guide port 69 rotating from the ring groove 32 to the top of the corresponding sample storage tube 81, the docking joint 692 first slides into the inside of the guide port 69 due to the resistance to the top ring 82 on the top of the sample storage tube 81, and compresses the fourth spring 691 (the cross section of the top ring 82 is a regular triangle structure, that is, the inside and outside of the top ring 82 are inclined planes with the same inclination angle, so as to facilitate the sliding of the docking joint 692 and not easily blocked), so that the docking joint 692 can easily reach the top of the sample storage tube 81 and can be better aligned with the docking tube 84 on the top of the sample storage tube 81. Then the fourth spring 691 pushes the joint 692 downward, so that the round head of the joint 692 contacts the inside of the joint tube 84, which can form a seal to ensure the sealing of the joint 692 and the joint tube 84. The push of the fourth spring 691 can also drive the joint tube 84 to slide downward. The joint tube 84 slides downward, compressing the sixth spring 85 inside the closed tube 83, and the drain hole 86 on the bottom side of the joint tube 84 is also exposed from the closed tube 83. At this point, the inside of the shunt tube 67 is connected to the inside of the sample storage tube 81 through the guide port 69, the joint 692, the joint tube 84 and the drain hole 86. The sewage sample sucked by the water pump 62 through the sampling tube 61 smoothly enters the sample storage tube 81 and is thus stored. After the shunt tube 67 drives the joint 692 to rotate away, the sixth spring 85 pushes the joint tube 84 to rise, and the drain hole 86 is closed again by the closed tube 83. The sample storage tube 81 is completely closed, and the sewage sample therein can be better preserved.

[0055] Example 3: This example is an explanation based on Example 1. For details, please refer to Figure 1-Figure 12 A protective mechanism 4 is provided on the inner side of the ring body 31, and the protective mechanism 4 includes a bracket 41 fixed in an array on the inner side of the ring body 31, a slide 42 is fixed to the bottom of the bracket 41, a first spring 44 is installed inside the slide 42, a first long rod 43 is elastically connected to the inside of the slide 42 through the first spring 44, a first wedge 45 is fixed to the top of the first long rod 43, an adjusting box 46 is fixed to the top surface of the bracket 41, a slide plate 47 is slidably connected to the inside of the bracket 41, a second spring 48 is installed inside the adjusting box 46, and the slide plate 47 is elastically connected to the inside of the adjusting box 46 through the second spring 48, an extrusion block 49 is fixed to the bottom surface of one end of the slide plate 47, and the first wedge block 45 abuts against the extrusion block 49.

[0056] A closing mechanism 7 is provided on the bottom surface of the column 51, and the closing mechanism 7 includes a support arm 71 fixed to the bottom surface of the column 51, a shell 72 is fixed to the bottom end of the support arm 71, a closing plate 74 is slidably connected in the shell 72, a fifth spring 73 is installed in the shell 72, and the closing plate 74 is elastically connected to the shell 72 through the fifth spring 73, one end of the top surface of the closing plate 74 abuts against the bottom end of the sampling tube 61, and a push block 75 is fixed to the other end of the top surface of the closing plate 74, and the second wedge block 56 abuts against the push block 75.

[0057] After the support plate 11 is placed on the water surface, the bottom end of the sampling tube 61 is always in the water. In order to prevent the bottom of the sampling tube 61 from entering the water debris, a closing mechanism 7 is provided at the bottom of the column 51, and the bottom of the sampling tube 61 is blocked by the closing plate 74; since the top of the docking tube 84 in the sample storage tube 81 is open, the splashed water may enter the docking tube 84. When the docking joint 692 pushes the docking tube 84 downward, so that the docking tube 84 is connected with the inside of the sample storage tube 81 through the drain hole 86, the water splashed into the docking tube 84 will enter the sample storage tube 81, and then mix with the introduced sewage sample, which will eventually lead to inaccurate sewage sample data. Therefore, multiple protective mechanisms 4 are arranged in a circular array on the inner side of the ring body 31 to close the top of each sample storage tube 81, thereby preventing water from splashing into the docking tube 84.

[0058] When the sampling tube 61 drives the shunt tube 67 to rotate, the disc 64 is also driven to rotate, and the disc 64 drives the protrusion 65 on its top surface to rotate. Whenever the butt joint 692 at the end of the shunt tube 67 is about to approach the sample storage tube 81 to be connected, the protrusion 65 first contacts and pushes the first long rod 43 upward (as shown in the attached figure). Figure 6 As shown in FIG. 1 ), the first long rod 43 slides inside the slide cylinder 42, compressing the first spring 44 and driving the first wedge block 45 to squeeze the squeezing block 49, so that the slide plate 47 slides rightward in the bracket 41 (as shown in FIG. 1 ). Fig.10 ), the slide plate 47 compresses the second spring 48, thereby exposing the corresponding top of the sample storage tube 81 in advance, and then the docking joint 692 at the end of the shunt tube 67 is connected to the docking tube 84 in the sample storage tube 81. The disc 64 also drives several downward pressing blocks 66 on its bottom surface to rotate. Whenever the docking joint 692 at the end of the shunt tube 67 is accurately docked with one of the docking tubes 84, the downward pressing block 66 corresponding to the bottom surface of the disc 64 will contact the second long rod 54 on the column 51, pushing the second long rod 54 downward. The second long rod 54 compresses the third spring 55 and drives the second wedge block 56 to squeeze the push block 75, so that the closing plate 74 slides away from the sampling tube 61 and compresses the fifth spring 73 inside the housing 72. The sliding of the closing plate 74 will immediately release the closure of the bottom end of the sampling tube 61, and then the water pump 62 is started to absorb the sewage sample through the sampling tube 61.

[0059] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A sampling device for sewage quality detection, comprising a moving mechanism, characterized in that: The moving mechanism comprises a support plate, a moving motor and a controller are installed on the top surface of the support plate, the moving motor and the controller are electrically connected, a rotating rod is installed on the output end of the moving motor, the rotating rod passes through the support plate, a first gear is installed on the bottom end of the rotating rod, an impeller is arranged at the bottom of the support plate, a second gear is installed on the side of the impeller, and the first gear is meshed and connected with the second gear; The top surface of the support plate is provided with a storage mechanism, the storage mechanism comprises a ring body for fixing the top surface of the support plate, and the top surface array of the ring body is provided with a plurality of placement grooves; An adjusting mechanism is arranged inside the supporting plate, and the adjusting mechanism comprises a column installed in the middle of the supporting plate, a rotating motor is installed inside the column, and a fifth gear is installed at the output end of the rotating motor; A sampling mechanism is installed inside the column, and the sampling mechanism includes a sampling tube running through the middle of the column, a gear ring is provided on the surface of the sampling tube, the fifth gear is meshed and connected with the gear ring, a shunt tube is connected to the top of the sampling tube, a disc is fixed in the middle of the sampling tube, a convex block is fixed on the top surface of the disc, and a plurality of pressing blocks are fixed in an array on the bottom surface of the disc; A sample storage mechanism is placed in each of the placement slots, and the sample storage mechanism includes a sample storage tube placed inside each of the placement slots; The adjustment mechanism further includes a third spring installed inside the column, a second long rod passes through the column, and the second long rod is elastically connected to the inside of the column through the third spring, and a second wedge is fixed to the bottom end of the second long rod; A closing mechanism is provided on the bottom surface of the column, and the closing mechanism includes a support arm fixed to the bottom surface of the column, a shell is fixed to the bottom end of the support arm, a closing plate is slidably connected in the shell, a fifth spring is installed in the shell, and the closing plate is elastically connected to the shell through the fifth spring, one end of the top surface of the closing plate abuts against the bottom end of the sampling tube, a push block is fixed to the other end of the top surface of the closing plate, and the second wedge block abuts against the push block.

2. The sampling device for sewage quality detection according to claim 1 is characterized in that: The moving mechanism also includes a guide cover installed at the bottom of the support plate, the impeller is rotatably connected to the inside of the guide cover, an outer cover is fixed to the side of the guide cover, and the first gear and the second gear are both rotatably connected to the inside of the outer cover.

3. The sampling device for sewage quality detection according to claim 2 is characterized in that: The support plate is provided with a direction-changing mechanism, which includes a top cover installed on the top surface of the support plate, a motor installed inside the top cover, a third gear installed at the output end of the motor, a fourth gear rotatably connected inside the top cover, the third gear is meshingly connected with the fourth gear, a connecting rod is connected to the bottom of the fourth gear, and the connecting rod passes through the support plate, and a direction-changing plate is installed at the bottom end of the connecting rod.

4. The sampling device for sewage quality detection according to claim 3 is characterized in that: The storage mechanism further comprises an annular groove arranged on the top surface of the ring body, and a limiting groove is arranged on the outer side of the annular groove.

5. The sampling device for sewage quality detection according to claim 4 is characterized in that: A protection mechanism is provided on the inner side of the ring body, and the protection mechanism includes a bracket fixed in an array on the inner side of the ring body, a slide cylinder is fixed on the bottom of the bracket, a first spring is installed inside the slide cylinder, a first long rod is elastically connected to the inside of the slide cylinder through the first spring, a first wedge is fixed on the top of the first long rod, an adjusting box is fixed on the top surface of the bracket, a slide plate is slidably connected to the inside of the bracket, a second spring is installed inside the adjusting box, and the slide plate is elastically connected to the inside of the adjusting box through the second spring, an extrusion block is fixed on the bottom surface of one end of the slide plate, and the first wedge block abuts against the extrusion block.

6. The sampling device for sewage quality detection according to claim 5 is characterized in that: The sampling mechanism also includes a water pump installed at the lower section of the sampling tube. A limiting hook is fixed to the bottom end of the diverter tube, and the limiting hook is slidably connected to the limiting groove. A guide port is also provided at the bottom end of the diverter tube, and a fourth spring is installed inside the guide port. The docking head is elastically connected to the inside of the guide port through the fourth spring.

7. The sampling device for sewage quality detection according to claim 6 is characterized in that: The sample storage mechanism also includes a top ring arranged on the top of the sample storage tube, a closed tube is fixed inside the top of the sample storage tube, a sixth spring is installed in the closed tube, the docking tube is elastically connected to the inside of the closed tube through the sixth spring, and a plurality of drain holes are evenly arranged on the side wall of the bottom end of the docking tube.

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