Multi-stage intercepting device for sewage treatment tank

Abstract

The invention discloses and relates to the technical field of sewage treatment, in particular to a multi-stage intercepting device for a sewage treatment pond, which comprises a vertical sewage treatment pond and a plurality of intercepting plates obliquely arranged in the vertical sewage treatment pond, and further comprises a pushing detection mechanism arranged below the front ends of the intercepting plates, the pushing detection mechanism comprises a mounting box fixedly mounted on the front surface of the vertical sewage treatment tank, a pushing assembly, a detection assembly and a driving assembly, and the pushing assembly is movably mounted in the mounting box. The connecting roller is driven by the driving assembly to rotate, the connecting roller is attached to the bottom of the intercepting plate, so that the ejector rods on the connecting roller are inserted into the filtering holes in the intercepting plate, impurities in the filtering holes are pushed upwards, the cleaning effect on the intercepting plate is improved, meanwhile, the intercepting plate is blocked by the ejector rods, a complete plane is formed at the top of the intercepting plate, and the cleaning efficiency is improved. And impurities on the top of the intercepting plate can be cleaned subsequently.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a multi-stage interception device for a sewage treatment pool. Background Art

[0002] With the rapid development of industrialization and urbanization, water pollution is becoming increasingly serious, and sewage treatment technology has become an important part of environmental protection. Traditional sewage treatment methods include physical, chemical and biological treatment, among which physical filtration technology is widely used due to its simple operation and low cost.

[0003] The Chinese patent with the publication number CN213132140U discloses a sewage treatment device that is convenient for cleaning the filter screen, including a box, the inner cavity of the box is fixedly installed with a filter screen body, the left side of the box is provided with a motor, the output shaft of the motor is fixedly installed with a driving gear, the front and rear sides of the driving gear are meshed with driven gears, the right side of the driven gear is fixedly installed with a threaded rod, the right end of the threaded rod penetrates the box and extends to the inner cavity of the box and the inner wall bearing support of the box, the surface of the threaded rod and the inner cavity of the box are threadedly connected with a threaded pipe, the bottom of the threaded pipe is fixedly installed with a connecting rod, the bottom of the connecting rod is fixedly installed with a scraper, and the bottom of the scraper is in contact with the top of the filter screen body. The patent realizes the cleaning of impurities on the surface of the filter screen by reciprocating the scraper on the filter screen.

[0004] As in the prior art of the above-mentioned patent, when using a scraper to clean impurities on the surface of the filter screen, the following problems exist: first, the scraper can easily push the impurities into the filter holes of the filter screen, causing the filter holes to be blocked, affecting the subsequent filtering effect; second, when the filter holes of the filter screen are blocked, the degree of blockage cannot be fed back in time, thereby affecting the smooth progress of subsequent sewage treatment. Therefore, a multi-stage interception device for a sewage treatment tank is urgently needed to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a multi-stage interception device for a sewage treatment tank to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a multi-stage interception device for a sewage treatment tank, comprising a vertical sewage treatment tank and a plurality of interception plates obliquely arranged inside the vertical sewage treatment tank, the interception plates being provided with evenly distributed filtering holes, and further comprising: The push detection mechanism is arranged below the front end of the interception plate. The push detection mechanism includes an installation box fixedly installed on the front of the vertical sewage treatment tank, a push assembly, a detection assembly and a drive assembly. The push assembly is movably installed inside the installation box, and when the push assembly rotates and fits the bottom of the interception plate, it can push out impurities in the filter holes. The detection assembly is arranged inside the installation box. When the push assembly is reset, the detection assembly can detect the blockage rate of the filter holes on the interception plate through the push assembly. The drive assembly is arranged on the top of the installation box to drive the push assembly to rotate.

[0007] Preferably, a sewage outlet is provided at the lower part of the back of the vertical sewage treatment tank, and an isolation plate located at one end of the interception plate and cooperating with the sewage outlet is provided inside the vertical sewage treatment tank, and an elastic flap corresponding to the position of the interception plate is provided on the isolation plate.

[0008] Preferably, the diameters of the filter holes on the intercepting plates gradually decrease from top to bottom, the end of the intercepting plate close to the push detection mechanism is at a low position, and the end of the intercepting plate away from the push detection mechanism is against the isolation plate.

[0009] Preferably, the pushing assembly includes a fixedly connected connecting roller and a transmission top plate, the transmission top plate is movably mounted inside the installation box through the connecting roller, and a push rod is provided on the transmission top plate to cooperate with the filter hole on the intercepting plate, and when the transmission top plate is rotated to the bottom of the intercepting plate, the push rod can be inserted into the filter hole on the intercepting plate, and a plurality of rubber sleeves are nested on the transmission top plate, an overload protection ring is provided in the middle of the push rod, and the push rod is clamped in the rubber sleeve through the overload protection ring, and the length of the push rod extending along the side of the transmission top plate close to the intercepting plate is the same as the thickness of the intercepting plate.

[0010] Preferably, the detection assembly includes a detection plate, a thrust sensor and a reset plate, the thrust sensor is detachably mounted on the installation box, the reset plate is fixedly mounted inside the installation box, the end of the thrust sensor close to the reset plate is threadedly connected to a connecting bracket, and the connecting bracket passes through the reset plate and is fixedly connected to the detection plate, a step column is provided at one end of the push rod close to the reset plate, a through hole matching the step column is opened on the detection plate, and the diameter of the through hole is larger than the diameter of the step column and smaller than the diameter of the push rod.

[0011] Preferably, the driving assembly includes an adjusting rack and an adjusting tooth, the adjusting tooth is arranged in the middle of the connecting roller, the adjusting rack is inserted into the top of the mounting box and meshes with the adjusting tooth, and an electric telescopic rod is fixedly installed above one side of the vertical sewage treatment tank close to the push detection mechanism to provide power for the movement of the adjusting rack.

[0012] Preferably, the interior of the vertical sewage treatment tank is provided with an impurity scraping mechanism located on the top of the intercepting plate, and the inner wall of the vertical sewage treatment tank is provided with an auxiliary driving rack cooperating with the impurity scraping mechanism. The impurity scraping mechanism includes a scraper, a rotating shaft, a lever and a transmission gear. The scraper is vertically arranged on the top of the intercepting plate, the rotating shaft is movably mounted on the scraper, and a plurality of levers are arranged on the circumferential side of the rotating shaft.

[0013] Preferably, a transmission gear is fixedly mounted on the end of the rotating shaft, and the auxiliary drive rack is meshed with the transmission gear. When the scraper moves on the top of the intercepting plate, the transmission gear and the auxiliary drive rack cooperate to drive the rotating shaft to rotate.

[0014] Preferably, the vertical sewage treatment tank is also provided with a driving mechanism for driving the impurity scraping mechanism to reciprocate on the top of the intercepting plate. The driving mechanism is composed of a servo motor, a transmission chain assembly and a plurality of driving components. The number of the driving components is the same as that of the intercepting plates and corresponds one-to-one to the positions of the intercepting plates. The driving components are connected to the scraper transmission.

[0015] Preferably, the servo motor is fixedly mounted on the vertical sewage treatment tank and is transmission-connected to any one of the drive chain assemblies, and a plurality of drive components are transmission-connected to each other through the drive chain assemblies.

[0016] In the above technical scheme, the present invention provides a multi-stage interception device for a sewage treatment pool, which drives the connecting roller to rotate through a driving component to fit the connecting roller to the bottom of the interception plate, so that the top rod on the connecting roller is inserted into the filter hole on the interception plate, and the impurities in the filter hole are pushed upward, thereby improving the cleaning effect of the interception plate. At the same time, the top rod seals the interception plate to form a complete plane on the top of the interception plate, which is convenient for the subsequent cleaning of impurities on the top of the interception plate; in addition, when there are tightly clamped particles in the filter hole, the force on the top rod exceeds the clamping force of the overload protection ring and slips out along the rubber sleeve. When the transmission top plate is reset, the ejected top rod moves in the rubber sleeve and exerts resistance on the detection plate. Since different numbers of ejector rods exert different resistance on the detection plate, the pressure on the detection plate can be detected by a thrust sensor, thereby indirectly realizing the detection of the blocking rate of the interception plate, which is convenient for the staff to inspect and repair the interception plate in time.

[0017] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0018] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of one side of the present invention; Figure 2 It is a structural schematic diagram of the other side of the whole invention; Figure 3 It is a schematic structural diagram of the overall side cross-section of the present invention; Figure 4 It is a schematic diagram of the structure of the isolation plate and the elastic flap connected to each other in the present invention; Figure 5 It is a schematic structural diagram of a side cross-section of the filter hole pushing mechanism of the present invention; Figure 6 It is a structural schematic diagram of the connection between the transmission top plate, the detection plate and the reset plate of the present invention; Figure 7 It is a schematic diagram of the structure of the transmission top plate and the interception plate of the present invention; Figure 8 It is a schematic diagram of the structure of the cooperation between the top rod and the transmission top plate of the present invention; Fig. 9 It is a structural schematic diagram of the impurity scraping mechanism of the present invention; Fig.10 It is a schematic diagram of the structure of the impurity scraping mechanism and the interception plate of the present invention; Fig.11 It is a structural schematic diagram of the driving mechanism of the present invention.

[0021] In the figure: 1. Vertical sewage treatment tank; 2. Top cover; 3. Interceptor plate; 4. Push detection mechanism; 41. Installation box; 42. Connecting roller; 43. Transmission top plate; 44. Push rod; 45. Overload protection ring; 46. Rubber sleeve; 47. Detection plate; 48. Connecting bracket; 49. Thrust sensor; 410. Reset plate; 411. Adjustment rack; 412. Adjustment tooth; 5. Electric telescopic rod; 6. Transmission frame; 7. Impurity scraping mechanism; 71. Scraper; 72. Rotating shaft; 73. Push rod; 74. Transmission gear; 75. Baffle; 8. driving mechanism; 81. servo motor; 82. shell plate; 83. driving chain assembly; 84. transmission shaft; 85. transmission chain assembly; 9. Sewage outlet; 10. Isolation plate; 11. Elastic flap; 12. Auxiliary drive rack. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] See also Figure 1-11 The embodiment of the present invention provides a technical solution: a multi-stage interception device for a sewage treatment tank, comprising a vertical sewage treatment tank 1 and a plurality of interception plates 3 obliquely arranged inside the vertical sewage treatment tank 1, wherein the interception plates 3 are provided with uniformly distributed filtering holes, and further comprising: The push detection mechanism 4 is arranged below the front end of the interception plate 3. The number of the push detection mechanisms 4 is the same as the number of the interception plates 3, and corresponds one to one with the positions of the interception plates 3. The push detection mechanism 4 includes an installation box 41 fixedly installed on the front of the vertical sewage treatment tank 1, a push assembly, a detection assembly and a drive assembly. The push assembly is movably installed inside the installation box 41, and when the push assembly rotates and fits the bottom of the interception plate 3, the impurities in the filter hole can be pushed out. The detection assembly is arranged inside the installation box 41. When the push assembly is reset, the detection assembly can detect the blockage rate of the filter hole on the interception plate 3 through the push assembly. The drive assembly is arranged at the top of the installation box 41, and is used to drive the push assembly to rotate.

[0024] Specifically, the vertical sewage treatment tank 1 provides a restricted space for multi-stage interception of sewage to ensure the stable progress of sewage treatment; a number of interception plates 3 cooperate to achieve multi-stage interception of impurities in sewage to ensure the effect of sewage treatment; the installation box 41 is fixed on the vertical sewage treatment tank 1 and is connected to the inside of the vertical sewage treatment tank 1, and is used to provide an installation position for the push assembly, the detection assembly and the drive assembly; when it is necessary to clean the impurities intercepted on the top of the interception plate 3, the drive assembly drives the push assembly to rotate toward the bottom of the interception plate 3, and makes the push assembly fit to the bottom of the interception plate 3. At this time, the push rod 44 in the push assembly can be inserted into the filter hole to clean the impurities in the filter hole and improve the cleaning effect of the interception plate 3; after the interception plate 3 is cleaned, the drive assembly drives The pushing assembly is reset. When there are tightly clamped particles in the filter holes, the force on the push rod 44 exceeds the clamping force of the overload protection ring 45 in the rubber sleeve 46, and the push rod 44 comes out of the rubber sleeve 46. Since the rubber sleeve 46 is made of rubber, there is friction when the push rod 44 slides in the rubber sleeve 46. When the transmission top plate 43 drives the push rod 44 to reset, the push rod 44 that comes out of the rubber sleeve 46 applies a thrust to the detection plate 47. Different numbers of push rods 44 push the detection plate 47, so that the thrust sensor 49 connected to the detection plate 47 can detect thrusts of different values. The greater the thrust, the higher the plugging rate of the surface interception plate 3. The detection data of the thrust sensor 49 is received by the control system in the prior art, and the plugging rate of the interception plate 3 can be viewed intuitively.

[0025] Compared with the prior art, the present invention provides a multi-stage interception device for a sewage treatment tank. The driving assembly drives the connecting roller 42 to rotate, and the connecting roller 42 is fitted to the bottom of the interception plate 3, so that the top rod 44 on the connecting roller 42 is inserted into the filter hole on the interception plate 3, and the impurities in the filter hole are pushed upward, thereby improving the cleaning effect of the interception plate 3. At the same time, the top rod 44 blocks the interception plate 3, so that the top of the interception plate 3 forms a complete plane, which is convenient for the subsequent cleaning of the impurities on the top of the interception plate 3; in addition, when there are tightly clamped particles in the filter hole, the force on the top rod 44 exceeds the clamping force of the overload protection ring 45, and it comes out along the rubber sleeve 46. When the transmission top plate 43 is reset, the ejected top rod 44 moves in the rubber sleeve 46 and exerts resistance on the detection plate 47. Since different numbers of ejector rods 44 exert different resistances on the detection plate 47, the pressure on the detection plate 47 can be detected by the thrust sensor 49, thereby indirectly realizing the detection of the blocking rate of the interception plate 3, which is convenient for the staff to inspect and repair the interception plate 3 in time.

[0026] As the preferred technical scheme of this embodiment, the pushing assembly includes a fixedly connected connecting roller 42 and a transmission top plate 43. The transmission top plate 43 is movably installed in the interior of the installation box 41 through the connecting roller 42. A push rod 44 that cooperates with the filter hole on the interception plate 3 is provided on the transmission top plate 43. When the transmission top plate 43 rotates to the bottom of the interception plate 3, the push rod 44 can be inserted into the filter hole on the interception plate 3. A plurality of rubber sleeves 46 are nested on the transmission top plate 43. An overload protection ring 45 is provided in the middle of the push rod 44, and is clamped in the rubber sleeve 46 through the overload protection ring 45. The length of the push rod 44 extending along the side of the transmission top plate 43 close to the interception plate 3 is the same as the thickness of the interception plate 3. Specifically, at the push rod 44 The overload protection ring 45 is arranged on the top to limit the position of the push rod 44, so that the push rod 44 has a certain firmness after being installed in the overload protection ring 45, and ensures that the transmission top plate 43 can drive the push rod 44 to be inserted into the filter hole, so as to clean the impurities in the filter hole. Only when there are tightly clamped particles in the filter hole and the force on the push rod 44 exceeds the clamping force of the overload protection ring 45, the push rod 44 will come out of the rubber sleeve 46; the protruding length of the push rod 44 along one side of the transmission top plate 43 is limited to ensure that after the push rod 44 is inserted into the filter hole, the top of the push rod 44 is flush with the top of the transmission top plate 43, so that the top of the interception plate 3 forms a flat surface, which is convenient for the subsequent cleaning of impurities on the top of the interception plate 3.

[0027] In one embodiment of the present invention, the detection component includes a detection plate 47, a thrust sensor 49 and a reset plate 410. The thrust sensor 49 is detachably mounted on the installation box 41. The reset plate 410 is fixedly mounted inside the installation box 41, and the reset plate 410 is located between the thrust sensor 49 and the transmission top plate 43. The detection plate 47 is located between the reset plate 410 and the transmission top plate 43. The end of the thrust sensor 49 close to the reset plate 410 is threadedly connected with a connecting bracket 48, and the connecting bracket 48 passes through the reset plate 410 and is fixedly connected to the detection plate 47. A step column is provided at one end of the push rod 44 close to the reset plate 410. When the transmission top plate 43 is in an initial state, the step column on the push rod 44 is against the reset plate 410. A through hole matching the step column is opened on the detection plate 47, and the diameter of the through hole is larger than the diameter of the step column and smaller than the diameter of the push rod 44. Specifically, after the interception plate 3 is cleaned, the driving component drives the push rod 44 to move forward. The component is reset. When there are tightly clamped particles in the filter hole, the force on the push rod 44 exceeds the clamping force of the overload protection ring 45 in the rubber sleeve 46, and the push rod 44 comes out along the rubber sleeve 46. Since the rubber sleeve 46 is made of rubber, there is friction when the push rod 44 slides in the rubber sleeve 46. When the transmission top plate 43 drives the push rod 44 to reset, the push rod 44 that comes out of the rubber sleeve 46 applies a thrust to the detection plate 47. Different numbers of push rods 44 push the detection plate 47, so that the thrust sensor 49 connected to the detection plate 47 can detect thrusts of different values. The greater the thrust, the higher the blocking rate of the surface interception plate 3. A step column is provided on the push rod 44 and a through hole matched with the step column is provided on the detection plate 47 to ensure that the push rod 44 that comes out of the rubber sleeve 46 can press the detection plate 47. At the same time, when the transmission top plate 43 is reset, the reset plate 410 presses the step column on the push rod 44 to reset the push rod 44 that comes out in the rubber sleeve 46.

[0028] In another embodiment provided by the present invention, the driving assembly includes an adjusting rack 411 and an adjusting tooth 412, the adjusting tooth 412 is arranged in the middle of the connecting roller 42, the adjusting rack 411 is plugged into the top of the mounting box 41 and meshes with the adjusting tooth 412, an electric telescopic rod 5 is fixedly installed on the upper side of the vertical sewage treatment tank 1 close to the side of the pushing detection mechanism 4, and a transmission frame 6 is fixedly mounted on the output shaft of the electric telescopic rod 5, the output shaft of the electric telescopic rod 5 is directly fixedly connected to the adjusting rack 411 in the top pushing detection mechanism 4, and is indirectly fixedly connected to the adjusting racks 411 in the remaining pushing detection mechanisms 4 through the transmission frame 6, specifically, the electric telescopic rod 5 can directly drive the adjusting rack 411 in the top pushing detection mechanism 4 to move, and the transmission frame 6 can drive the adjusting racks 411 in the remaining pushing detection mechanisms 4 to move, the adjusting rack 411 cooperates with the adjusting tooth 412 to drive the connecting roller 42 to rotate, so as to adjust the position of the pushing assembly, and the electric telescopic rod 5 is a prior art and is commercially available.

[0029] In another embodiment provided by the present invention, a top cover 2 is fixedly installed on the top of the vertical sewage treatment tank 1 by screws, and a water inlet is provided on the side of the top cover 2 close to the interception plate 3, a drain is provided at the bottom of the vertical sewage treatment tank 1, and the bottom of the vertical sewage treatment tank 1 is a funnel-shaped structure, a sewage outlet 9 is provided at the lower back of the vertical sewage treatment tank 1, and an isolation plate 10 located at one end of the interception plate 3 and cooperating with the sewage outlet 9 is provided inside the vertical sewage treatment tank 1, and an elastic flap 11 corresponding to the position of the interception plate 3 is provided on the isolation plate 10. Specifically, the top cover 2 The top of the vertical sewage treatment tank 1 can be sealed. Sewage enters through the water inlet on the top cover 2. After impurities in the sewage are intercepted in multiple stages by a number of interception plates 3, the sewage is discharged from the drain outlet at the bottom of the vertical sewage treatment tank 1. The bottom of the vertical sewage treatment tank 1 is arranged in a funnel shape, which is convenient for centralized collection of treated sewage. An isolation plate 10 is arranged in the vertical sewage treatment tank 1 to divide the interior of the vertical sewage treatment tank 1 into two spaces. One side of the space is used for multi-stage interception of impurities in the sewage, and the other side of the space is used for discharging the intercepted impurities and discharging them along the sewage outlet 9.

[0030] In another embodiment provided by the present invention, a plurality of interception plates 3 are vertically stacked inside the vertical sewage treatment tank 1 and fixed to the inside of the vertical sewage treatment tank 1 by countersunk screws. The diameters of the filter holes on the plurality of interception plates 3 gradually decrease from top to bottom. The end of the interception plate 3 close to the push detection mechanism 4 is at a low position, and the end of the interception plate 3 away from the push detection mechanism 4 is against the isolation plate 10. Specifically, a plurality of interception plates 3 are stacked and the diameters of the filter holes on the plurality of interception plates 3 are limited, so that multi-stage interception of impurities in sewage can be achieved. The inclination direction of the interception plates 3 is limited so that the sewage is concentrated along the side of the interception plate 3 close to the push detection mechanism 4 for filtration, thereby preventing the sewage from flushing the driving mechanism 8 on the isolation plate 10 and being discharged along the sewage outlet 9 without being treated.

[0031] In the prior art, since the impurities on the filter screen often contain granular substances, these particles are easily accumulated at the contact position between the scraper and the filter screen during the cleaning process of the scraper. During the movement of the scraper, the granular impurities are easily stuck at the bottom of the scraper, affecting the scraping effect of the scraper. In this regard, the following embodiments are proposed to solve this problem.

[0032] As the preferred technical solution of this embodiment, the interior of the vertical sewage treatment tank 1 is provided with an impurity scraping mechanism 7 located on the top of the intercepting plate 3, which is used to scrape the impurities on the top of the intercepting plate 3. The inner wall of the vertical sewage treatment tank 1 is provided with a mounting groove with the same inclination direction as the intercepting plate 3, and the mounting groove is provided with an auxiliary driving rack 12 that cooperates with the impurity scraping mechanism 7. The impurity scraping mechanism 7 includes a scraper 71, a rotating shaft 72, a lever 73 and a transmission gear 74. The scraper 71 is vertically arranged on the top of the intercepting plate 3, and the bottom of the scraper 71 is against the top of the intercepting plate 3. The rotating shaft 72 is movably installed below the side of the scraper 71 away from the push detection mechanism 4. A plurality of levers 73 are arranged on the circumferential side of the rotating shaft 72. The levers 73 along the circumference of the rotating shaft 72 are annular on the rotating shaft 72 The impurities on the top of the intercepting plate 3 need to be cleaned by the driving mechanism 8, and the impurity scraping mechanism 7 will push open the elastic flap 11 at the corresponding position, so as to push the impurities into the space on the side of the isolation plate 10 close to the sewage outlet 9, so as to clean the impurities on the top of the intercepting plate 3; at the same time, when the scraper 71 is moving, the transmission gear 74 cooperates with the auxiliary driving rack 12 to drive the rotating shaft 72 and the lever 73 to rotate, and the spacing between adjacent levers 73 is smaller than the size of the granular impurities. The granular impurities can be rolled away from the contact position between the scraper 71 and the intercepting plate 3 by the rotating lever 73, so as to avoid the granular impurities being stuck in the bottom of the scraper 71 and affecting the cleaning effect of the impurities.

[0033] In another embodiment provided by the present invention, both ends of the rotating shaft 72 are fixedly covered with a transmission gear 74, the auxiliary drive rack 12 is located above the transmission gear 74 and meshes with the transmission gear 74, when the scraper 71 moves on the top of the intercepting plate 3, the transmission gear 74 cooperates with the auxiliary drive rack 12 to drive the rotating shaft 72 to rotate, and the impurity scraping mechanism 7 also includes a baffle 75, the baffle 75 is tilted and fixedly installed below the scraper 71 on the side close to the rotating shaft 72, and a serrated groove that cooperates with the lever 73 is opened on the baffle 75. Specifically, the auxiliary drive rack 12 is set on the transmission gear 74 On the top, it is ensured that when the scraper 71 moves toward the side close to the driving mechanism 8, the rotating shaft 72 and the lever 73 can rotate counterclockwise, so that the granular impurities are rolled away from the contact position between the scraper 71 and the intercepting plate 3 by the rotating lever 73; a baffle 75 is provided on the scraper 71 to prevent the lever 73 from rolling the granular impurities between the rotating shaft 72 and the scraper 71 during the rotation process; the rotating shaft 72 is provided with evenly distributed levers 73, and the end of the lever 73 can be tangent to the top of the intercepting plate 3 when rotating. In addition to rolling the granular impurities away from the scraper 71, the stubborn impurities adhering to the top of the intercepting plate 3 can also be scraped off.

[0034] In another embodiment provided by the present invention, a driving mechanism 8 is further provided on the vertical sewage treatment tank 1, which is used to drive the impurity scraping mechanism 7 to reciprocate on the top of the interception plate 3. The driving mechanism 8 is composed of a servo motor 81, a transmission chain assembly 85 and a plurality of driving components. The number of the driving components is the same as that of the interception plate 3, and the positions of the interception plates 3 correspond one to one. The driving components include two sets of shell plates 82, a driving chain assembly 83 and a transmission shaft 84. The two sets of shell plates 82 are respectively located at both ends of the impurity scraping mechanism 7 and are fixedly installed on the vertical sewage treatment tank 1. The two sets of driving chains are respectively located at both ends of the impurity scraping mechanism 7 and are fixedly installed on the vertical sewage treatment tank 1. The bar assemblies 83 are movably installed inside the two groups of shell plates 82 respectively. The two groups of drive chain assemblies 83 are located at both ends of the scraper 71 and are transmission-connected thereto. Specifically, the shell plates 82 provide installation positions for the drive chain assemblies 83 to ensure the stability of the drive chain assemblies 83 when working. The servo motor 81 provides power for the drive component, and the power is transmitted to the two groups of drive chain assemblies 83 in the drive component through the transmission shaft 84. Power can be provided for the movement of the scraper 71 at both ends to improve the stability of the scraper 71 when moving. The servo motor 81 is a prior art and is commercially available.

[0035] In another embodiment provided by the present invention, a group of transmission shafts 84 are arranged between two groups of drive chain assemblies 83 in the driving components, and the transmission connection is made through the transmission shafts 84. The transmission shafts 84 are arranged on the side of the scraper 71 away from the isolation plate 10. The servo motor 81 is fixedly installed on the vertical sewage treatment tank 1 and is transmission-connected to any drive chain assembly 83. Several driving components are transmission-connected through the transmission chain assembly 85. Specifically, the position of the transmission shaft 84 is restricted to ensure the transmission effect of the transmission shaft 84 while avoiding the interference of the transmission shaft 84 with the movement of the scraper 71. By setting the transmission chain assembly 85, power can be transmitted between multiple driving components to achieve synchronous driving of multiple groups of scrapers 71.

[0036] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-stage interception device for a sewage treatment tank, comprising a vertical sewage treatment tank (1) and a plurality of interception plates (3) obliquely arranged inside the vertical sewage treatment tank (1), wherein the interception plates (3) are provided with uniformly distributed filtering holes, characterized in that: Also includes: A push detection mechanism (4) is arranged below the front end of the interception plate (3), the push detection mechanism (4) comprising an installation box (41) fixedly installed on the front of the vertical sewage treatment tank (1), a push assembly, a detection assembly and a drive assembly, the push assembly being movably installed inside the installation box (41), and being able to push out impurities in the filter holes when the push assembly rotates and fits against the bottom of the interception plate (3), the detection assembly being arranged inside the installation box (41), and being able to detect the blockage rate of the filter holes on the interception plate (3) through the push assembly when the push assembly is reset, and the drive assembly being arranged at the top of the installation box (41) and being used to drive the push assembly to rotate.

2. A multi-stage interception device for a sewage treatment tank according to claim 1, characterized in that: A sewage outlet (9) is provided at the lower part of the back of the vertical sewage treatment tank (1), and an isolation plate (10) is provided inside the vertical sewage treatment tank (1) and is located at one end of the interception plate (3) and cooperates with the sewage outlet (9). An elastic flap (11) corresponding to the position of the interception plate (3) is provided on the isolation plate (10).

3. A multi-stage interception device for a sewage treatment pool according to claim 2, characterized in that: The diameters of the filter holes on the plurality of interception plates (3) gradually decrease from top to bottom, the end of the interception plate (3) close to the push detection mechanism (4) is at a low position, and the end of the interception plate (3) away from the push detection mechanism (4) abuts against the isolation plate (10).

4. A multi-stage interception device for a sewage treatment tank according to claim 1, characterized in that: The push assembly comprises a fixedly connected connecting roller (42) and a transmission top plate (43). The transmission top plate (43) is movably mounted inside the mounting box (41) via the connecting roller (42). A push rod (44) is provided on the transmission top plate (43) and matches with a filter hole on the interception plate (3). When the transmission top plate (43) rotates to the bottom of the interception plate (3), the push rod (44) can be inserted into the filter hole on the interception plate (3). A plurality of rubber sleeves (46) are embedded on the transmission top plate (43). An overload protection ring (45) is provided in the middle of the push rod (44) and is clamped in the rubber sleeve (46) via the overload protection ring (45). The length of the push rod (44) extending along the side of the transmission top plate (43) close to the interception plate (3) is the same as the thickness of the interception plate (3).

5. A multi-stage interception device for a sewage treatment tank according to claim 4, characterized in that: The detection assembly comprises a detection plate (47), a thrust sensor (49) and a reset plate (410), wherein the thrust sensor (49) is detachably mounted on the mounting box (41), and the reset plate (410) is fixedly mounted inside the mounting box (41), and one end of the thrust sensor (49) close to the reset plate (410) is threadedly connected to a connecting bracket (48), and the connecting bracket (48) passes through the reset plate (410) and is fixedly connected to the detection plate (47), and one end of the push rod (44) close to the reset plate (410) is provided with a step column, and a through hole matching the step column is opened on the detection plate (47), and the diameter of the through hole is larger than the diameter of the step column and smaller than the diameter of the push rod (44).

6. A multi-stage interception device for a sewage treatment tank according to claim 1, characterized in that: The driving assembly comprises an adjusting rack (411) and an adjusting tooth (412), wherein the adjusting tooth (412) is arranged in the middle of the connecting roller (42), the adjusting rack (411) is plugged into the top of the installation box (41) and meshes with the adjusting tooth (412), and an electric telescopic rod (5) is fixedly installed above one side of the vertical sewage treatment tank (1) close to the push detection mechanism (4) to provide power for the movement of the adjusting rack (411).

7. The multi-stage interception device for a sewage treatment tank according to claim 1, characterized in that: An impurity scraping mechanism (7) located at the top of the intercepting plate (3) is arranged inside the vertical sewage treatment tank (1); an auxiliary driving rack (12) cooperating with the impurity scraping mechanism (7) is arranged on the inner wall of the vertical sewage treatment tank (1); the impurity scraping mechanism (7) comprises a scraper (71), a rotating shaft (72), a lever (73) and a transmission gear (74); the scraper (71) is vertically arranged at the top of the intercepting plate (3); the rotating shaft (72) is movably mounted on the scraper (71); and a plurality of levers (73) are arranged on the circumference of the rotating shaft (72).

8. A multi-stage interception device for a sewage treatment tank according to claim 7, characterized in that: The end of the rotating shaft (72) is fixedly sleeved with a transmission gear (74), and the auxiliary drive rack (12) and the transmission gear (74) are meshed with each other. When the scraper (71) moves on the top of the intercepting plate (3), the transmission gear (74) cooperates with the auxiliary drive rack (12) to drive the rotating shaft (72) to rotate.

9. A multi-stage interception device for a sewage treatment pool according to claim 8, characterized in that: The vertical sewage treatment tank (1) is also provided with a driving mechanism (8) for driving the impurity scraping mechanism (7) to reciprocate on the top of the interception plate (3). The driving mechanism (8) is composed of a servo motor (81), a transmission chain assembly (85), and a plurality of driving components. The number of the driving components is the same as that of the interception plates (3), and the positions of the driving components correspond one to one with the interception plates (3). The driving components are connected to the scraper (71) in a transmission manner.

10. A multi-stage interception device for a sewage treatment pool according to claim 9, characterized in that: The servo motor (81) is fixedly mounted on the vertical sewage treatment tank (1) and is transmission-connected to any one of the drive chain assemblies (83), and a plurality of drive components are transmission-connected to each other via the drive chain assemblies (85).

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