A sewage discharge detection device for water conservancy projects

Abstract

The present invention discloses a sewage discharge detection device for water conservancy projects, comprising a transfer detection box and a filter plate, wherein the filter plate is rotatably arranged inside the transfer detection box. The present invention relates to the field of sewage detection technology. The sewage discharge detection device for water conservancy projects, by arranging an intermittent surface changing mechanism, a debris cleaning mechanism, a dehydration and external discharge mechanism, and a negative suction and dredging mechanism inside the transfer detection box, enables the device to intermittently provide a clean filtering surface for the water inlet pipe through the coordinated cooperation of the intermittent surface changing mechanism, the debris cleaning mechanism, the dehydration and external discharge mechanism, and the negative suction and dredging mechanism when performing sewage discharge detection, and simultaneously intermittently removes impurities from the filter plate to avoid accumulation of impurities on the top of the filter plate, and simultaneously intermittently dehydrates and discharges temporarily stored solid impurities, and simultaneously intermittently extracts impurities in the filter holes of the filter plate under negative pressure to ensure smooth flow of the filter plate.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage detection, in particular to a sewage discharge detection device for water conservancy projects. Background Art

[0002] Sewage discharge testing mainly tests the water quality and amount of discharged sewage. Its purpose is to control sewage discharge to prevent a large amount of sewage that does not meet the standards from being discharged through water conservancy project pipelines and polluting water resources.

[0003] In order to detect sewage discharge, it is inevitable to use a sewage discharge detection device for detection. Although the sewage discharge detection device in the existing technology is convenient for sewage discharge detection, it is inevitable that it still has shortcomings in actual use. For example, the device lacks a debris removal mechanism, which causes the filter plate of the device to remove solid impurities to accumulate impurities, resulting in poor water filtration in sewage discharge. Therefore, a sewage discharge detection device for water conservancy projects is proposed to solve the existing problems. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a sewage discharge detection device for water conservancy projects, which solves the problem that the device lacks a debris removal mechanism, resulting in the filter plate of the device removing solid impurities, causing sewage discharge to have poor water filtration due to the accumulation of impurities.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sewage discharge detection device for water conservancy projects, comprising a transfer detection box and a filter plate, the filter plate being rotatably arranged inside the transfer detection box, the top and front side of the transfer detection box being connected to an inlet pipe and an outlet pipe respectively, a detector being provided on one side of the transfer detection box, and the detection end of the detector extending to the interior of the transfer detection box, an intermittent surface changing mechanism being provided on the top of the transfer detection box, a debris cleaning mechanism being provided on one side of the transfer detection box, a dehydration and discharge mechanism being provided at the bottom of the debris cleaning mechanism, and a vacuuming and dredging mechanism being provided on the top of the transfer detection box and at the rear side of the intermittent surface changing mechanism.

[0006] Preferably, the intermittent surface changing mechanism includes a main shaft, which is rotatably arranged inside the filter plate, and the two ends of the main shaft extend to the top and bottom of the transfer detection box respectively, the top of the filter plate is fixedly connected to a water-proof cover, and the water-proof cover is rotatably connected to the surface of the main shaft, and the inner wall of the water-proof cover is equidistantly fixed with a number of single-slanted panels, and one side of the main shaft is slidably provided with an arc-end push plate used in conjunction with the single-slanted panel, the surface of the main shaft and the top of the transfer detection box are fixedly connected with a gear, the top of the transfer detection box is fixedly connected with a drive motor, and the output shaft of the drive motor A reciprocating screw is fixedly connected through a coupling, and one end of the reciprocating screw is rotatably connected to the top of the transfer detection box through a bearing and a bracket, a threaded sleeve is threadedly connected to the surface of the reciprocating screw, a toothed plate meshing with the gear is fixedly connected to the rear side of the threaded sleeve, a ratchet is fixedly connected to the bottom of the filter plate, and the surface of the ratchet is rotatably connected to the inner wall of the transfer detection box through a bearing, one side of the transfer detection box is fixedly connected to a mounting box by providing a mounting groove, a pawl used in conjunction with the ratchet is slidably connected to the inside of the mounting box, and a first spring is fixedly connected between the pawl and the mounting box.

[0007] Preferably, the debris cleaning mechanism includes an arc-shaped cover, which is connected to the other side of the transfer detection box. The top of the transfer detection box is rotatably connected to a cleaning shaft through a bearing, and one end of the cleaning shaft extends to the interior of the transfer detection box. The surface of the cleaning shaft is equidistantly fixed with a number of arc-shaped scrapers used in conjunction with the arc-shaped cover. The surfaces of the cleaning shaft and the water-proof cover are respectively fixedly connected with a first secondary pulley and a first main pulley, and a first belt is connected for transmission between the first secondary pulley and the first main pulley.

[0008] Preferably, the dehydration and discharge mechanism includes a drain box, the drain box is fixedly arranged at the bottom of the transfer and detection box, and the top of the drain box is connected to the bottom of the arc cover, the interior of the drain box is fixedly connected with a partition filter plate, the top of the partition filter plate is slidably provided with a pressure plate, and one side of the pressure plate extends to the outside of the drain box, the surface of the main shaft is fixedly connected with a cam used in conjunction with the pressure plate, one side of the drain box is provided with a baffle, one side of the baffle is provided with a sliding opening, one side of the arc cover is fixedly connected with an inclined rod used in conjunction with the sliding opening, the front and rear sides of one side of the arc cover are fixedly connected with a storage frame, the interior of the storage frame is slidably connected with a telescopic plate, a fourth spring is fixedly connected between the telescopic plate and the storage frame, the front and rear sides of one side of the baffle are fixedly connected with a slide plate, and one end of the telescopic plate is fixedly connected with a slide block slidably adapted to the slide plate.

[0009] Preferably, the negative suction and dredging mechanism includes an air cylinder, which is fixedly arranged at the top of the inner cavity of the transfer detection box, and a threaded rod is rotatably arranged on the top of the transfer detection box through a bearing and a bracket, and one end of the threaded rod extends into the interior of the air cylinder, the surface of the threaded rod is threadedly connected to an internal threaded cylinder, and the bottom of the internal threaded cylinder is fixedly connected to a piston plate, the threaded rod and the surfaces of the main shaft are respectively fixedly connected to the second secondary pulley and the second main pulley, and the second belt is transmitted between the second secondary pulley and the second main pulley, and the bottom of the air cylinder is symmetrically fixed with two first limiting sleeves through the bracket, the first limiting sleeve is slidably connected to the first limiting rod, and the first return spring is fixedly connected to the first limiting sleeve, and the top of the two first limiting rods The two ends of the cam are connected with the guide rail, and the guide rails are connected with the guide rails respectively. The guide rails are connected with the cylinder pressure bar and the cylinder pressure bar is connected with the cylinder pressure bar.

[0010] Preferably, a sliding groove is provided on the front and rear sides of the cylinder surface, a sliding block is slidably connected inside the sliding groove, and the sliding block is fixedly connected to the cover, and a third return spring is fixedly connected between the sliding block and the sliding groove.

[0011] Preferably, the front and rear sides of the internally threaded cylinder are fixedly connected with guide slides, and the tops of the air cylinder and the transfer detection box are both provided with guide sliding holes that are slidably matched with the guide slides.

[0012] Preferably, a receiving groove slidably matched with the arc end push plate is provided on the surface of the main shaft, and a second spring is fixedly connected between the receiving groove and the arc end push plate.

[0013] Preferably, the bottom of the drain box is fixedly connected to a mounting cylinder, the interior of the mounting cylinder is slidably connected to a movable rod, and the top of the movable rod is fixedly connected to the bottom of the pressure plate through a bracket, and a third spring is fixedly connected between the movable rod and the mounting cylinder.

[0014] Preferably, the bottom of the drain box is connected to a manifold used in conjunction with the water outlet pipe.

[0015] The present invention provides a sewage discharge detection device for water conservancy projects. Compared with existing technologies, it has the following advantages:

[0016] (1) The sewage discharge detection device for water conservancy projects is provided with an intermittent surface changing mechanism, a debris cleaning mechanism, a dehydration and external discharge mechanism and a negative suction and dredging mechanism inside the transfer detection box. When the device is conducting sewage discharge detection, the intermittent surface changing mechanism, the debris cleaning mechanism, the dehydration and external discharge mechanism and the negative suction and dredging mechanism cooperate with each other to enable the filter plate to intermittently provide a clean filtering surface for the water inlet pipe, and simultaneously perform intermittent impurity removal on the filter plate to avoid accumulation of impurities on the top of the filter plate, and simultaneously perform intermittent dehydration and external discharge of temporarily stored solid impurities, and simultaneously perform intermittent negative pressure extraction of impurities in the filter pores of the filter plate to ensure smooth flow of the filter plate.

[0017] (2) The sewage discharge detection device for water conservancy projects is configured with a sliding mouth and an inclined rod between the baffle and the arc cover, and a slide block and a slide plate between the telescopic plate and the baffle, so that when the baffle is squeezed by solid impurities, it can cooperate through the above-mentioned path, thereby facilitating the baffle to break away from the impurities and ensuring the smooth discharge of dehydrated impurities.

[0018] (3) The sewage discharge detection device for water conservancy projects is configured with a sliding block, a third reset spring and a sliding groove between the sealing cover and the air cylinder, so that the sealing cover can be automatically reset, thereby avoiding the problem that the filter plate is affected by contact with the sealing cover when the filter plate rotates intermittently.

[0019] (4) The sewage discharge detection device used in water conservancy projects is configured with a negative pressure extraction plate and a negative pressure extraction sealing plate at the bottom and inner wall of the cylinder respectively, so that the pressure inside the cylinder can be extracted and discharged smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the external structure of the present invention;

[0021] Figure 2 A schematic diagram of the external structure of the present invention from another perspective;

[0022] Figure 3 A schematic diagram of the internal structure of the transfer detection box of the present invention;

[0023] Figure 4 A schematic diagram showing the internal structure of the transfer detection box of the present invention from another perspective;

[0024] Figure 5 A schematic diagram of the internal structure of the water shield of the present invention;

[0025] Figure 6 For the present invention Figure 5 A partial enlarged view of point A in the middle;

[0026] Figure 7 A schematic diagram of the internal structure of the installation box of the present invention;

[0027] Figure 8 is a schematic diagram of the cam structure of the present invention;

[0028] Figure 9 Schematic diagram of the dehydration and discharge mechanism structure of the present invention;

[0029] Figure 10 For the present invention Figure 4 A partial enlarged view of point B in the middle;

[0030] Figure 11 For the present invention Figure 4 A partial enlarged view of point C in the middle;

[0031] Figure 12 For the present invention Figure 4 A partial enlarged view of point D in the middle.

[0032] In the figure: 1. Transfer and detection box; 2. Filter plate; 3. Water inlet pipe; 4. Water outlet pipe; 5. Detector; 6. Intermittent surface changing mechanism; 601. Spindle; 602. Water shield; 603. Single-slant panel; 604. Arc end push plate; 605. Gear; 606. Drive motor; 607. Reciprocating screw; 608. Threaded sleeve; 609. Tooth plate; 610. Ratchet; 611. Mounting box; 612. Pawl; 613. First spring; 614, storage slot; 615, second spring; 7, debris removal mechanism; 701, curved cover; 702, cleaning shaft; 703, curved scraper; 704, first secondary pulley; 705, first primary pulley; 706, first belt; 8, dehydration and drainage mechanism; 801, drain tank; 802, separator filter plate; 803, pressure plate; 804, cam; 805, baffle; 806, slide; 807, inclined rod; 808, installation Cylinder; 809, movable rod; 810, third spring; 811, storage frame; 812, telescopic plate; 813, fourth spring; 814, chute plate; 815, chute block; 9, negative pumping and unblocking mechanism; 901, air cylinder; 902, threaded rod; 903, internal thread cylinder; 904, piston plate; 905, second secondary pulley; 906, second primary pulley; 907, second belt; 908, first limiting sleeve; 909, first A limiting rod; 910, a first return spring; 911, a negative extraction plate; 912, a T-shaped frame; 913, a rocker plate; 914, a sealing cover; 915, a stop block; 916, a sliding groove; 917, a sliding block; 918, a third return spring; 919, a second limiting sleeve; 920, a second limiting rod; 921, a second return spring; 922, a negative extraction sealing plate; 923, an exhaust pipe; 924, a guide slide; 925, a guide slide hole. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0034] See also Figures 1-12 The present invention provides a technical solution: a sewage discharge detection device for water conservancy projects, comprising a transfer detection box 1 and a filter plate 2, the filter plate 2 is rotatably arranged inside the transfer detection box 1, the top and front side of the transfer detection box 1 are respectively connected to the water inlet pipe 3 and the water outlet pipe 4, a detector 5 is provided on one side of the transfer detection box 1, and the detection end of the detector 5 extends to the interior of the transfer detection box 1. As a detailed explanation: the detector 5 is an online COD detector, and its model is MDS-B15COD.

[0035] As a preferred embodiment, in order to facilitate the intermittent provision of clean filtering surfaces at different positions for the water inlet, an intermittent surface changing mechanism 6 is provided on the top of the transfer and detection box 1. The intermittent surface changing mechanism 6 includes a main shaft 601, which is rotatably arranged inside the filter plate 2, and the two ends of the main shaft 601 extend to the top and bottom of the transfer and detection box 1 respectively. The top of the filter plate 2 is fixedly connected with a water-blocking cover 602, and the water-blocking cover 602 is rotatably connected to the surface of the main shaft 601. A number of single-slanted panels 603 are fixedly connected to the inner wall of the water-blocking cover 602 at equal intervals. An arc-end push plate 604 used in conjunction with the single-slanted panel 603 is slidably provided on one side of the main shaft 601. A gear 605 is fixedly connected to the surface of the main shaft 601 and located at the top of the transfer and detection box 1. There is a driving motor 606, the output shaft of the driving motor 606 is fixedly connected to a reciprocating screw 607 through a coupling, and one end of the reciprocating screw 607 is rotatably connected to the top of the transfer and detection box 1 through a bearing and a bracket, the surface of the reciprocating screw 607 is threadedly connected to a threaded sleeve 608, the rear side of the threaded sleeve 608 is fixedly connected to a tooth plate 609 that meshes with the gear 605, the bottom of the filter plate 2 is fixedly connected to a ratchet 610, and the surface of the ratchet 610 is rotatably connected to the inner wall of the transfer and detection box 1 through a bearing, one side of the transfer and detection box 1 is fixedly connected to a mounting box 611 by providing a mounting groove, the interior of the mounting box 611 is slidably connected to a pawl 612 used in conjunction with the ratchet 610, and a first spring 613 is fixedly connected between the pawl 612 and the mounting box 611;

[0036] A receiving groove 614 slidably matched with the arc end push plate 604 is formed on the surface of the main shaft 601 , and a second spring 615 is fixedly connected between the receiving groove 614 and the arc end push plate 604 .

[0037] As a preferred embodiment, in order to facilitate the cleaning of the filter plate 2, a cleaning mechanism 7 is provided on one side of the transfer and inspection box 1, and the cleaning mechanism 7 includes an arc-shaped cover 701, which is connected to the other side of the transfer and inspection box 1. The top of the transfer and inspection box 1 is rotatably connected to a cleaning shaft 702 through a bearing, and one end of the cleaning shaft 702 extends to the interior of the transfer and inspection box 1. The surface of the cleaning shaft 702 is equidistantly fixed with a number of arc-shaped scrapers 703 used in conjunction with the arc-shaped cover 701. The surfaces of the cleaning shaft 702 and the water-proof cover 602 are respectively fixedly connected with a first secondary pulley 704 and a first main pulley 705, and a first belt 706 is connected for transmission between the first secondary pulley 704 and the first main pulley 705.

[0038] As a preferred embodiment, in order to facilitate the intermittent dehydration and discharge of impurities in temporary storage, a dehydration and discharge mechanism 8 is provided at the bottom of the cleaning mechanism 7, and the dehydration and discharge mechanism 8 includes a drain box 801, the drain box 801 is fixedly arranged at the bottom of the transfer and detection box 1, and the top of the drain box 801 is connected to the bottom of the arc cover 701, the interior of the drain box 801 is fixedly connected to a partition filter plate 802, the top of the partition filter plate 802 is slidably provided with a pressure plate 803, and one side of the pressure plate 803 extends to the outside of the drain box 801, and the surface of the main shaft 601 is fixedly connected to a cam 804 used in conjunction with the pressure plate 803 , a baffle 805 is provided on one side of the drain box 801, and a sliding opening 806 is opened on one side of the baffle 805. An inclined rod 807 used in conjunction with the sliding opening 806 is fixedly connected to one side of the arc cover 701. The front and rear sides of one side of the arc cover 701 are fixedly connected to a storage frame 811. The interior of the storage frame 811 is slidably connected to a telescopic plate 812. A fourth spring 813 is fixedly connected between the telescopic plate 812 and the storage frame 811. The front and rear sides of one side of the baffle 805 are fixedly connected to a slide plate 814. One end of the telescopic plate 812 is fixedly connected to a slide block 815 that slides and fits with the slide plate 814.

[0039] The bottom of the drain box 801 is fixedly connected to a mounting cylinder 808, and the interior of the mounting cylinder 808 is slidably connected to a movable rod 809, and the top of the movable rod 809 is fixedly connected to the bottom of the pressure plate 803 through a bracket, and a third spring 810 is fixedly connected between the movable rod 809 and the mounting cylinder 808. The bottom of the drain box 801 is connected to a conduit used in conjunction with the outlet pipe 4.

[0040] As a preferred embodiment, in order to facilitate the dredging of the filter holes of the filter plate 2, a negative suction dredging mechanism 9 is provided at the top of the transfer detection box 1 and at the rear side of the intermittent surface changing mechanism 6. The negative suction dredging mechanism 9 includes an air cylinder 901, which is fixedly arranged at the top of the inner cavity of the transfer detection box 1. The top of the transfer detection box 1 is rotatably provided with a threaded rod 902 through a bearing and a bracket, and one end of the threaded rod 902 extends to the interior of the air cylinder 901. The surface of the threaded rod 902 is threadedly connected with an internal threaded cylinder 903. The internal threaded cylinder 903 The bottom of the cylinder 901 is fixedly connected to a piston plate 904, and the surface of the threaded rod 902 and the main shaft 601 are respectively fixedly connected to a second secondary pulley 905 and a second main pulley 906. A second belt 907 is connected between the second secondary pulley 905 and the second main pulley 906. The bottom of the cylinder 901 is symmetrically fixed with two first limiting sleeves 908 through a bracket. The first limiting sleeve 908 is slidably connected to the inside of the first limiting sleeve 909, and the first limiting rod 909 is fixedly connected to the first limiting sleeve 908. There is a first return spring 910, the tops of the two first limit rods 909 are fixedly connected to a negative extraction plate 911, the bottom of the negative extraction plate 911 is fixedly connected to a T-shaped frame 912, the bottom of the air cylinder 901 is provided with a seesaw 913 through the bracket rotation, and the seesaw 913 is symmetrically provided with two, the outer surface of the air cylinder 901 is slidingly provided with a cover 914, the inner wall of the cover 914 is fixedly connected to a block 915 used in conjunction with the seesaw 913, and the block 915 is symmetrically provided with two, the inner wall of the air cylinder 901 is fixed A second limiting sleeve 919 is connected, and two second limiting sleeves 919 are provided. A second limiting rod 920 is slidably connected to the interior of the second limiting sleeve 919, and a second return spring 921 is fixedly connected between the second limiting rod 920 and the second limiting sleeve 919. One end of the two second limiting rods 920 is commonly fixedly connected to a negative sealing plate 922. The surface of the air cylinder 901 is connected to an exhaust pipe 923 used in conjunction with the negative sealing plate 922, and one end of the exhaust pipe 923 extends to the top of the transfer detection box 1;

[0041] The front and rear sides of the surface of the air cylinder 901 are provided with sliding grooves 916, and the sliding grooves 916 are internally slidably connected with sliding blocks 917, and the sliding blocks 917 are fixedly connected to the sealing cover 914. A third return spring 918 is fixedly connected between the sliding blocks 917 and the sliding grooves 916, and the front and rear sides of the internal threaded cylinder 903 are fixedly connected with guide slides 924. The tops of the air cylinder 901 and the transfer detection box 1 are provided with guide sliding holes 925 that are slidably adapted to the guide slides 924.

[0042] The specific steps are as follows:

[0043] Step 1: Intermittent replacement of the filter surface: The sewage is passed into the transfer detection box 1 through the water inlet pipe 3, and after the solid impurities are filtered by the filter plate 2 and detected by the detector 5, it is discharged from the outlet pipe 4. During the filtration, the drive motor 606 is started to cause the threaded sleeve 608 to carry the tooth plate 609 to move back and forth on the surface of the reciprocating screw 607. The reciprocating movement of the tooth plate 609 causes the gear 605 to mesh back and forth. The meshing of the gear 605 synchronously drives the main shaft 601 and the arc end push plate 604 to reciprocate. The push plate 604 at the arc end rotates equidistantly. The forward rotation of the push plate 604 at the arc end pushes the single-slanted panel 603, causing the water shield 602 to rotate at a fixed angle. The reverse rotation of the push plate 604 at the arc end causes it to retract and expand and reset to the flat surface of the next single-slanted panel 603. The intermittent rotation of the water shield 602 synchronously drives the filter plate 2 to rotate intermittently to provide a new clean filtering surface for the water inlet pipe 3. The filter plate 2 is prevented from rotating in one direction by the ratchet 610 and the pawl 612.

[0044] Step 2: Intermittent cleaning of the filter surface: The water shield 602 rotates intermittently, and the first secondary pulley 704, the first main pulley 705, and the first belt 706 drive the cleaning shaft 702 and the curved scraper 703 to rotate synchronously. The curved scraper 703 rotates and continuously transfers the solid impurities on the top of the filter plate 2 to the inside of the curved shield 701, and finally causes the impurities to accumulate on the top of the separation filter plate 802 to drain;

[0045] Step 3: Intermittent compression and removal of solid waste: During the reciprocating rotation of the main shaft 601, the main shaft 601 synchronously drives the cam 804 to push the pressure plate 803 back and forth, prompting the pressure plate 803 to push the impurities on the top of the separation filter plate 802 back and forth until the impurities accumulate at the baffle 805 and are squeezed and dehydrated. As the impurities are squeezed and dehydrated, the impurities will eventually push the baffle 805 open, prompting the impurities to be removed to the outside. When the baffle 805 is forced to move, it will cooperate with the inclined rod 807 through the sliding port 806, the chute plate 814 and the chute block 815, prompting the baffle 805 to break away from the squeezing contact with the impurities, prompting the impurities to be discharged smoothly. After the impurities are removed, the baffle 805 is automatically reset by the pullback of the fourth spring 813 and its own gravity.

[0046] Step 4: Intermittent dredging of the filter mesh: When the main shaft 601 rotates back and forth, the main shaft 601 is synchronously driven by the second secondary pulley 905, the second main pulley 906 and the second belt 907, so that the threaded rod 902 rotates forward and reverse synchronously. When the threaded rod 902 rotates forward, the internal threaded cylinder 903 carries the piston plate 904 to press down inside the air cylinder 901, so that the gas inside the air cylinder 901 is emptied. After the filter plate 2 rotates forward intermittently with the main shaft 601, the main shaft 601 will pass through the screw rod 903 to press down on the internal threaded cylinder 901. The threaded rod 902 is synchronously reversed, causing the internal threaded cylinder 903 to carry the piston plate 904 to pull up inside the air cylinder 901 to extract air. The piston plate 904 extracts air, and the negative suction plate 911 moves upward under negative pressure. The movement of the negative suction plate 911 drives the T-shaped frame 912 to rise, causing the T-shaped frame 912 to press the block 915 by lifting the rocker plate 913, causing the sealing cover 914 to fit the top of the filter plate 2. As the piston plate 904 continues to extract air, the impurities in the filter holes of the filter plate 2 are gradually extracted to the top of the filter plate 2.

Claims

1. A sewage discharge detection device for a water conservancy project, comprising a transfer detection box (1) and a filter plate (2), wherein the filter plate (2) is rotatably arranged inside the transfer detection box (1), and is characterized in that: The top and front side of the transfer detection box (1) are respectively connected to a water inlet pipe (3) and a water outlet pipe (4); a detector (5) is provided on one side of the transfer detection box (1), and a detection end of the detector (5) extends into the interior of the transfer detection box (1); an intermittent surface changing mechanism (6) is provided on the top of the transfer detection box (1); a debris cleaning mechanism (7) is provided on one side of the transfer detection box (1); a dehydration and discharge mechanism (8) is provided at the bottom of the debris cleaning mechanism (7); a negative suction and dredging mechanism (9) is provided on the top of the transfer detection box (1) and located at the rear side of the intermittent surface changing mechanism (6); The intermittent surface changing mechanism (6) includes a main shaft (601), the main shaft (601) is rotatably arranged inside the filter plate (2), and the two ends of the main shaft (601) extend to the top and bottom of the transfer detection box (1) respectively, the top of the filter plate (2) is fixedly connected with a water shield (602), and the water shield (602) is rotatably connected to the surface of the main shaft (601), the inner wall of the water shield (602) is equidistantly fixedly connected with a plurality of single-slant panels (603), one side of the main shaft (601) is slidably provided with an arc end push plate (604) used in conjunction with the single-slant panel (603), the surface of the main shaft (601) and the top of the transfer detection box (1) are fixedly connected with a gear (605), the top of the transfer detection box (1) is fixedly connected with a drive motor (606), and the output shaft of the drive motor (606) is connected through The coupling is fixedly connected to a reciprocating screw (607), and one end of the reciprocating screw (607) is rotatably connected to the top of the transfer detection box (1) through a bearing and a bracket. The surface of the reciprocating screw (607) is threadedly connected to a threaded sleeve (608), and the rear side of the threaded sleeve (608) is fixedly connected to a tooth plate (609) that meshes with the gear (605). The bottom of the filter plate (2) is fixedly connected to a ratchet (610), and the surface of the ratchet (610) is rotatably connected to the inner wall of the transfer detection box (1) through a bearing. One side of the transfer detection box (1) is fixedly connected to a mounting box (611) by providing a mounting groove. A pawl (612) used in conjunction with the ratchet (610) is slidably connected to the interior of the mounting box (611), and a first spring (613) is fixedly connected between the pawl (612) and the mounting box (611). The cleaning mechanism (7) includes an arc-shaped cover (701), the arc-shaped cover (701) is connected to the other side of the transfer detection box (1), the top of the transfer detection box (1) is rotatably connected to a cleaning shaft (702) through a bearing, and one end of the cleaning shaft (702) extends to the interior of the transfer detection box (1), the surface of the cleaning shaft (702) is equidistantly fixedly connected to a plurality of arc-shaped scrapers (703) used in conjunction with the arc-shaped cover (701), the surfaces of the cleaning shaft (702) and the water-blocking cover (602) are respectively fixedly connected to a first secondary pulley (704) and a first main pulley (705), and a first belt (706) is connected between the first secondary pulley (704) and the first main pulley (705); The dehydration and discharge mechanism (8) includes a drain box (801), the drain box (801) is fixedly arranged at the bottom of the transfer detection box (1), and the top of the drain box (801) is connected to the bottom of the arc cover (701), the interior of the drain box (801) is fixedly connected to a partition filter plate (802), the top of the partition filter plate (802) is slidably provided with a pressure plate (803), and one side of the pressure plate (803) extends to the outside of the drain box (801), the surface of the main shaft (601) is fixedly connected to a cam (804) used in conjunction with the pressure plate (803), and a baffle (805) is provided on one side of the drain box (801), and the baffle ( A sliding opening (806) is provided on one side of the arc-shaped cover (701), an inclined rod (807) matched with the sliding opening (806) is fixedly connected to one side of the arc-shaped cover (701), a storage frame (811) is fixedly connected to the front and rear sides of one side of the arc-shaped cover (701), a telescopic plate (812) is slidably connected to the interior of the storage frame (811), a fourth spring (813) is fixedly connected between the telescopic plate (812) and the storage frame (811), a slide plate (814) is fixedly connected to the front and rear sides of one side of the baffle (805), and a slide block (815) slidably matched with the slide plate (814) is fixedly connected to one end of the telescopic plate (812); The negative suction and dredging mechanism (9) comprises an air cylinder (901), the air cylinder (901) being fixedly arranged at the top of the inner cavity of the transfer detection box (1), the top of the transfer detection box (1) being rotatably provided with a threaded rod (902) through a bearing and a bracket, and one end of the threaded rod (902) extending into the interior of the air cylinder (901), the surface of the threaded rod (902) being threadedly connected to an internal threaded cylinder (903), the bottom of the internal threaded cylinder (903) being fixedly connected to a piston plate (904), the surfaces of the threaded rod (902) and the main shaft (601) being fixedly connected to a second A secondary pulley (905) and a second main pulley (906) are connected to each other by a second belt (907). The bottom of the air cylinder (901) is symmetrically fixed with two first limiting sleeves (908) through a bracket. The first limiting sleeve (908) is internally slidably connected to a first limiting rod (909). A first return spring (910) is fixedly connected between the first limiting rod (909) and the first limiting sleeve (908). The tops of the two first limiting rods (909) are fixed together. The bottom of the air cylinder (901) is fixedly connected to a negative extraction plate (911), and the bottom of the negative extraction plate (911) is fixedly connected to a T-shaped frame (912). The bottom of the air cylinder (901) is rotatably provided with a seesaw (913), and two seesaws (913) are symmetrically provided. The outer surface of the air cylinder (901) is slidably provided with a sealing cover (914), and the inner wall of the sealing cover (914) is fixedly connected to a stop block (915) used in conjunction with the seesaw (913), and two stop blocks (915) are symmetrically provided. The inner wall of the air cylinder (901) is fixedly connected to a second limiting sleeve (919). ), two second limiting sleeves (919) are provided, the interior of the second limiting sleeve (919) is slidably connected to a second limiting rod (920), and a second return spring (921) is fixedly connected between the second limiting rod (920) and the second limiting sleeve (919), one end of the two second limiting rods (920) is fixedly connected to a negative-drawing sealing plate (922), the surface of the gas cylinder (901) is connected to an exhaust pipe (923) used in conjunction with the negative-drawing sealing plate (922), and one end of the exhaust pipe (923) extends to the top of the transfer detection box (1).

2. A sewage discharge detection device for water conservancy projects according to claim 1, characterized in that: The front and rear sides of the surface of the air cylinder (901) are both provided with a sliding groove (916), the interior of the sliding groove (916) is slidably connected to a sliding block (917), and the sliding block (917) is fixedly connected to the sealing cover (914), and a third return spring (918) is fixedly connected between the sliding block (917) and the sliding groove (916).

3. The sewage discharge detection device for water conservancy projects according to claim 1, characterized in that: The front and rear sides of the internally threaded cylinder (903) are fixedly connected to guide slide posts (924), and the tops of the air cylinder (901) and the transfer detection box (1) are both provided with guide sliding holes (925) that are slidably matched with the guide slide posts (924).

4. The sewage discharge detection device for water conservancy projects according to claim 1, characterized in that: The surface of the main shaft (601) is provided with a receiving groove (614) that is slidably matched with the arc-end push plate (604), and a second spring (615) is fixedly connected between the receiving groove (614) and the arc-end push plate (604).

5. The sewage discharge detection device for water conservancy projects according to claim 1, characterized in that: The bottom of the drain box (801) is fixedly connected to a mounting cylinder (808), the interior of the mounting cylinder (808) is slidably connected to a movable rod (809), and the top of the movable rod (809) is fixedly connected to the bottom of the pressure plate (803) via a bracket, and a third spring (810) is fixedly connected between the movable rod (809) and the mounting cylinder (808).

6. The sewage discharge detection device for water conservancy projects according to claim 1, characterized in that: The bottom of the drain box (801) is connected to a conduit that is used in conjunction with the outlet pipe (4).

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