A mixer for sewage treatment

Abstract

The invention relates to a mixer technology, and is used to solve the problem that an impeller is prone to position deviation during unrestricted working, resulting in damage to the impeller, and the damaged impeller is inconvenient to replace. The invention is specifically a mixer for sewage treatment, including a sewage pool. The impeller supported by a connecting rod, a top rod and a bottom rod is more stable during rotation, and is not prone to swinging and tilting during rotation. A connecting box 2 and a connecting box 1 are connected by mutual interlocking, so that when a worker replaces and repairs the impeller, it is not necessary to contact the sewage, and the connecting rod can be disassembled by plugging and unplugging, which is not affected by the sewage in the sewage pool and is more convenient. The analysis module determines the blockage of the sewage discharge hole, determines whether the execution module controls the scraper to perform a dredging operation to dredge the blockage, and determines how to dock to minimize damage to the sewage discharge hole, and prevents incorrect operations that affect the docking efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of mixers, in particular to a mixer for sewage treatment. Background Art

[0002] The hyperbolic mixer is also called an aeration mixing device with a double-layer impeller. The upper surface of the hyperbolic impeller body is a hyperbolic structure formed by the rotation of the hyperbolic generatrix around the axis of the impeller body. Its unique impeller structure design combines fluid characteristics with mechanical movement to the maximum extent.

[0003] In the prior art, when the impeller at the lower end of the hyperbolic mixer is treating sewage, the impeller is in a suspended state. There are a lot of debris settled at the bottom of the sewage pool, and the weight of the debris is large. When the impeller stirs the water flow to drive the debris settled at the bottom of the sewage pool to flow with the water flow, the impeller is subjected to an unbalanced external force, causing the impeller to tilt. Friction occurs between the tilted impeller and the connecting rod, resulting in loss, and causing the impeller to rotate at an unstable speed, resulting in shaking or vibration, resulting in uneven stirring. When the hyperbolic mixer is in use, when the impeller is damaged and needs to be repaired and replaced, it is inconvenient for the staff to replace and repair the impeller because the bottom of the connecting rod is connected to the supporting structure and the impeller is in the sewage pool, causing inconvenience to the staff.

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] The purpose of the present invention is to make the impeller supported by the connecting rod, the top rod and the bottom rod more stable during the rotation process, and not prone to swinging and tilting during the rotation process. The connecting box two and the connecting box one are connected by mutual interlocking, so that the staff does not need to touch the sewage when replacing and repairing the impeller. The connecting rod can be disassembled by plugging and unplugging, which is not affected by the sewage inside the sewage pool and is more convenient. The analysis module determines the blockage of the sewage hole, and the execution module controls the scraper to perform the dredging operation to dredge the blockage. It is determined how to dock to minimize the damage to the sewage hole, and prevent incorrect operation from affecting the docking efficiency. The problem that the impeller is prone to position deviation during the unrestricted working process, resulting in impeller damage, and the damaged impeller is not easy to replace, is solved, and a mixer for sewage treatment is proposed.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A mixer for sewage treatment, comprising a sewage tank, a reducer is installed at the middle position of the inner wall of the sewage tank through a mounting plate, an impeller is installed at the lower end of the reducer through a connecting rod, a support seat 1 is installed at the position of the connecting rod on the inner lower surface of the sewage tank corresponding to the position of the connecting rod, a bottom rod is installed on the upper surface of the support seat 1, eight support seats 2 are evenly distributed around the support seat 1 on the inner lower surface of the sewage tank, each of the upper ends of the support seats 2 are rotatably connected to spiral blades through a support rod, connecting rings are installed at the upper ends of the eight spiral blades corresponding to the upper ends, a connecting ring is installed on the outer side wall of the bottom rod, connecting rods 2 are installed at the outer side wall of the connecting ring corresponding to the position of the support seat 2, and connecting rods 1 are installed at the inner side wall of the connecting ring corresponding to the position of the connecting rod 2.

[0008] As a preferred embodiment of the present invention, a cavity is provided on the upper part of the connecting rod one and the connecting rod two, a groove is provided on the outer wall of the bottom rod at a position corresponding to the connecting ring, a transmission gear one is rotatably connected to the position of the groove on the inner upper surface of the connecting ring through a rotating shaft, the transmission rod one is rotatably connected to the inside of the cavity on the upper part of the connecting rod two, the transmission rod two is rotatably connected to the inside of the cavity of the connecting rod one, and the two ends of the transmission rod one are respectively connected to the lower end of the rotating shaft of the transmission gear one and one end of the transmission rod two through universal joints.

[0009] As a preferred embodiment of the present invention, a transmission gear 2 is installed at one end of the transmission rod 2 away from the transmission rod 1, and a cavity is also opened inside the connecting ring. The cavity of the connecting ring is rotatably connected to a transmission gear 3 at a position corresponding to the transmission gear 2 through a rotating shaft. The cavity of the connecting ring is rotatably connected to a transmission wheel at a position corresponding to each support rod, and adjacent transmission wheels are connected by a transmission belt.

[0010] As a preferred embodiment of the present invention, a connecting box 2 is installed on the upper end of the bottom rod, and external fitting grooves are opened on the four directions of the outer side wall of the connecting box 2. A rotating cavity is opened at the center position of the bottom rod, and a connecting shaft is rotatably connected inside the rotating cavity. A cross protrusion is integrally formed with the upper end of the connecting shaft, and a number of evenly distributed tooth grooves are opened on the outer side wall of the connecting shaft corresponding to the position of the groove. A top rod is installed at the middle position of the upper surface of the inner part of the impeller, and a connecting box 1 is installed at the lower end of the top rod.

[0011] As a preferred embodiment of the present invention, an inner fitting groove which is the same size as the outer fitting groove is provided in the middle position of a lower surface of the connection box, and four fitting protrusions which are the same shape and size as the outer fitting groove are integrally formed in four directions on the inner side wall of the inner fitting groove, and a plurality of evenly distributed drainage holes 2 are provided on the outer side wall of the connection box 1, and drainage holes 1 are provided on the inner upper surface of the inner fitting groove at positions corresponding to the drainage holes 2, and a cross connecting groove is provided in the middle position of the inner upper surface of the inner fitting groove.

[0012] As a preferred embodiment of the present invention, a support frame is installed on the outer wall of the connecting box one at a position corresponding to the second sewage hole, a hydraulic push rod is installed at a middle position of the outer wall of the supporting frame close to the connecting box one, a full scraper is installed on the end of the hydraulic push rod away from the supporting frame, a telescopic sleeve is installed on the outer wall of the supporting frame corresponding to the outside of the hydraulic push rod, limiting plates are installed on both sides of the outer wall of the full scraper close to the hydraulic push rod, and a plurality of evenly distributed movable scrapers are rotatably connected to the lower surface of the full scraper.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. Compared with the impeller rotating in mid-air, the impeller whose lower end is supported by the connecting rod, the top rod and the bottom rod is more stable during the rotation process, and is not prone to swinging and tilting during the rotation process. The spiral blades driven by the connecting rod will roll up the sediment settled at the bottom in advance during the rotation process, reducing the force required to roll up the sediment during the rotation of the impeller, reducing the load on the impeller during the rotation process, and making the rotation of the impeller more stable;

[0015] 2. The connection box 2 and the connection box 1 are connected by interlocking, so that the staff does not need to touch the sewage when replacing and repairing the impeller. The connection rod can be disassembled by plugging and unplugging, which is not affected by the sewage inside the sewage pool. It is more convenient. The analysis module determines the blockage of the sewage hole and determines whether the scraper can clear the blockage by the execution module. It determines how to connect to minimize the damage to the sewage hole and prevents incorrect operation that affects the docking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0017] Figure 1 It is the main structure diagram of the present invention;

[0018] Figure 2 For the present invention Figure 1 The upward structural diagram of

[0019] Figure 3 It is a structural diagram of the connected ring of the present invention;

[0020] Figure 4 It is a structural diagram of a transmission gear of the present invention;

[0021] Figure 5 It is a structural diagram of the connecting shaft of the present invention;

[0022] Figure 6 It is a structural diagram of the inner fitting groove of the present invention;

[0023] Figure 7 This is a full scraper structure diagram of the present invention;

[0024] In the figure: 1, sewage tank; 21, reducer; 22, connecting rod; 23, impeller; 31, spiral blade; 32, support seat 2; 33, support seat 1; 34, support rod; 35, connecting ring; 36, connecting ring; 37, connecting rod 1; 38, connecting rod 2; 39, bottom rod; 310, groove; 311, transmission gear 1; 312, transmission rod 2; 313, transmission gear 2; 314, transmission gear 3 ; 315, transmission rod one; 41, connection box one; 42, connection box two; 43, push rod; 44, drainage hole two; 45, support frame; 46, cross protrusion; 47, connecting shaft; 48, external fitting groove; 49, fitting protrusion; 410, cross connecting groove; 411, drainage hole one; 412, internal fitting groove; 413, limit plate; 414, hydraulic push rod; 415, full scraper; 416, movable scraper. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Embodiment 1:

[0027] See also Figure 1-Figure 4As shown, a mixer for sewage treatment includes a sewage pool 1, a reducer 21 is installed at the middle position of the inner wall of the sewage pool 1 through a mounting plate, an impeller 23 is installed at the lower end of the reducer 21 through a connecting rod 22, a transmission structure is provided at the lower end of the reducer 21, and the lower surface of the transmission structure is rotatably connected to the connecting rod 22, a support seat 1 33 is installed at the position corresponding to the connecting rod 22 on the inner lower surface of the sewage pool 1, a bottom rod 39 is installed on the upper surface of the support seat 1 33, and the bottom rod 39 is supported by eight connecting rods 2 38, and eight support seats 2 32 are evenly distributed around the support seat 1 33 on the inner lower surface of the sewage pool 1, and the upper end of each support seat 2 32 is rotatably connected to the support seat 1 33 through a support rod 34. A spiral fan blade 31 is connected. During the rotation of the spiral fan blade 31, the sewage mixture located near the bottom of the spiral fan blade 31 can be circulated upward. A connecting ring 35 is installed at the upper end position corresponding to the eight spiral fan blades 31. A transmission wheel is rotatably connected to the cavity of the connecting ring 35 corresponding to each support rod 34. The adjacent transmission wheels are connected by a transmission belt. The eight spiral fan blades 31 rotate synchronously through the transmission structure inside the connecting ring 35. A connecting ring 36 is installed on the outer side wall of the bottom rod 39. A connecting rod 2 38 is installed at the outer side wall of the connecting ring 36 corresponding to the support seat 2 32. One end of the connecting rod 1 37 is connected to the middle position of the connecting rod 2 38. A connecting rod 1 37 is installed at the position of the connecting rod 2 38 corresponding to the inner wall of the connecting ring 35. A cavity is opened on the upper part of the connecting rod 1 37 and the connecting rod 2 38. The cavity of the connecting rod 1 37 is connected with the cavity of the connecting rod 2 38. A groove 310 is opened on the outer wall of the bottom rod 39 corresponding to the position of the connecting ring 36. A transmission gear 1 311 is rotatably connected to the position of the groove 310 on the inner upper surface of the connecting ring 36 through a rotating shaft. The transmission gear 1 311 and the tooth groove inside the groove 310 are mutually engaged and driven to rotate. The transmission gear 1 311 is connected to one end of the transmission rod 1 315 through a universal joint. The cavity on the upper part of the connecting rod 2 38 is rotatably connected to the transmission rod 1 315 The cavity of the connecting rod 1 37 is rotatably connected with the transmission rod 2 312, one end of the transmission rod 2 312 is connected to the other end of the transmission rod 1 315 through a universal joint, and the two ends of the transmission rod 1 315 are respectively connected to the lower end of the rotating shaft of the transmission gear 1 311 and one end of the transmission rod 2 312 through universal joints. The end of the transmission rod 2 312 away from the transmission rod 1 315 is installed with the transmission gear 2 313, and a cavity is also opened inside the connecting ring 35. The cavity of the connecting ring 35 is rotatably connected with the transmission gear 3 314 at the position corresponding to the transmission gear 2 313 through the rotating shaft. The transmission gear 3 314 and the transmission gear 2 313 are perpendicular to each other and interlocked with each other, and are driven to rotate;

[0028] In the prior art, when the impeller 23 at the lower end of the hyperbolic mixer is treating sewage, the impeller 23 is in a suspended state. There are a lot of debris settled at the bottom of the sewage pool 1, and the weight of the debris is large. When the impeller 23 stirs the water flow to drive the debris settled at the bottom of the sewage pool 1 to flow with the water flow, the impeller 23 is subjected to an unbalanced external force, causing the impeller 23 to tilt. After the impeller 23 tilts, friction occurs between the impeller 23 and the connecting rod 22, resulting in loss, and causing the impeller 23 to rotate unsteadily, resulting in shaking or vibration, resulting in uneven stirring.

[0029] The top of the support seat 33 is connected to the lower end of the connecting rod 22 through a connecting rod composed of a top rod 43 and a bottom rod 39, so that the rotating shaft composed of the connecting rod 22, the top rod 43 and the bottom rod 39 limits the position of the impeller 23, so that the impeller 23 is not easy to swing and tilt during the rotation process, and the connecting rod 22 drives the connecting shaft 47 to rotate during the rotation process, and the tooth grooves opened at the position of the corresponding groove 310 on the outer side of the connecting shaft 47 are mutually engaged with the transmission gear 311 and driven to rotate, so that the connecting rod 22 can drive the transmission gear 311 to rotate during the rotation process, and the connecting transmission gear The lower end of the rotating shaft of the first 311 is connected to the transmission rod 1 315 through a universal joint, so that when the transmission gear 1 311 rotates, the transmission rod 1 315 can be driven to rotate in the cavity inside the connecting rod 2 38. The other end of the transmission rod 1 315 is connected to the transmission rod 2 312 through a universal joint, so that when the transmission rod 1 315 rotates, the transmission rod 2 312 is driven to rotate in the cavity inside the connecting rod 1 37. The transmission gear 2 313 installed at the other end of the transmission rod 2 312 rotates along with the transmission rod 2 312 during the rotation process. The other end of the transmission rod 2 312 extends to the cavity inside the connecting ring 35. , and the transmission gear 2 313 and the transmission gear 3 314 are perpendicular to each other and interlocked with each other and driven to rotate, so that the rotating wheel coaxial with the transmission gear 3 314 drives the rotating wheel at the adjacent position to rotate through the transmission belt during the rotation process, and the rotating wheel in the internal cavity of the connecting ring 35 also corresponds to the position of the spiral blades 31, so that the eight spiral blades 31 are driven by the connecting rod 22 to rotate, and the spiral blades 31 are rotated during the rotation process to stir the water flow to roll up the sediment at the bottom of the sewage pool 1. Each spiral blade 31 is only for a smaller area at the bottom of the sewage pool 1, so that the force used to roll up the sediment is small, that is, the spiral blades The force of 31 is also reduced, and the rolled-up sediment is mixed in the sewage under the drive of the impeller 23. Compared with the impeller 23 rotating in the air, the impeller 23 whose lower end is supported by the connecting rod 22, the top rod 43 and the bottom rod 39 is more stable during the rotation process, and is not prone to swinging and tilting during the rotation process. The spiral fan blades 31 driven to rotate by the connecting rod 22 will roll up the sediment settled at the bottom in advance during the rotation process, reducing the force required to roll up the sediment during the rotation of the impeller 23, reducing the load on the impeller 23 during the rotation process, and making the rotation of the impeller 23 more stable.

[0030] Embodiment 2:

[0031] See also Figure 2 and Figure 5-7As shown, a connecting box 2 42 is installed on the upper end of the bottom rod 39, and external fitting grooves 48 are provided in four directions of the outer side wall of the connecting box 2 42. A rotating cavity is provided at the center of the bottom rod 39, and a connecting shaft 47 is rotatably connected inside the rotating cavity. The connecting shaft 47 will not separate from the bottom rod 39 during the rotation process. A cross protrusion 46 is integrally formed on the upper end of the connecting shaft 47, and a number of evenly distributed tooth grooves are provided at the position corresponding to the groove 310 on the outer side wall of the connecting shaft 47. A top rod 43 is installed at the middle position of the upper surface of the impeller 23, and a connecting box 1 41 is installed at the lower end of the top rod 43. An internal fitting groove 412 of the same size as the connecting box 2 42 is provided at the middle position of the lower surface of the connecting box 1 41. During the docking process between the connecting box 2 42 and the connecting box 1 41, the connecting box 1 41 is inserted into the internal fitting groove 412 on the connecting box 2 42, and the external fitting groove 48 on the outer side of the connecting box 1 41 is aligned with the fitting protrusion 49, and the fitting protrusion 49 The card is stuck in the outer fitting groove 48 so that the connection box 1 41 can drive the connection box 2 42 to rotate during the rotation process. Four fitting protrusions 49 of the same shape and size as the outer fitting groove 48 are integrally formed on the four directions of the inner side wall of the inner fitting groove 412. A number of evenly distributed drain holes 44 are opened on the outer side wall of the connection box 1 41. The height of the drain holes 44 at the outer side of the connection box 1 41 is higher than the height of the inner fitting groove 412. When the connection box 2 42 is mutually fitted with the connection box 1 41, the dirt inside the inner fitting groove 412 can be squeezed out through the drain holes 411 connected with the drain holes 44. Drain holes 411 are opened at the positions of the drain holes 44 on the inner upper surface of the inner fitting groove 412. A cross connecting groove 410 is opened at the middle position of the inner upper surface of the inner fitting groove 412. The cross protrusion 46 at the upper end of the connecting shaft 47 is mutually fitted with the cross connecting groove 410 on the connection box 1 41.

[0032] In the prior art, when the hyperbolic mixer is in use, if the impeller 23 is damaged and needs to be repaired and replaced, it is inconvenient for the staff to replace and repair the impeller 23 because the bottom of the connecting rod 22 is connected to the supporting structure and the impeller 23 is in the sewage tank 1, which causes inconvenience to the staff;

[0033] The connecting box 2 42 is installed at the upper end of the bottom rod 39, and the connecting shaft 47 rotating inside the bottom rod 39 is connected with the cross connecting groove 410 in the connecting box 1 41 through the cross protrusion 46 at the upper end, and then the connecting shaft 47 is driven to rotate by the rotation of the connecting rod 22. The connecting shaft 47 is provided with a planetary gear structure inside the bottom rod 39, and the position of the planetary gear in the planetary gear structure can be adjusted under the action of the pushing rod provided inside. When the planetary gear is embedded in the planetary gear structure, the connecting shaft 47 and the connecting rod 22 rotate in the opposite direction. When the planetary gear and the planetary gear structure are disengaged from each other, the connecting shaft 47 is in a stationary state, so that the load on the rotation of the connecting rod 22 is reduced. During the docking process between the connecting box 2 42 and the connecting box 1 41, the connecting box 2 42 realizes the rotation of the connecting rod 22 through the mutual embedding between the outer embedding groove 48 and the embedding protrusion 49 on the outer side of the connecting box 1 41. During the process, the connecting box 2 42 is driven to rotate, and the drain holes 2 44 are each provided with one-way flaps to prevent external sewage from flowing into the interior. When the connecting box 2 42 is docked with the connecting box 1 41, the external sewage inside the inner fitting groove 412 can be discharged outward through the drain holes 1 411 and the drain holes 2 44 in the extrusion process of the connecting box 1 41 in sequence. During the extrusion process, the connecting rod 22 can be pulled upward once so that the sewage inside the cross connecting groove 410 can fall to the bottom and then be discharged under the action of the extrusion force, so that the connecting box 2 42 is tightly docked with the connecting box 1 41. The connecting box 2 42 and the connecting box 1 41 are connected by mutual engagement, so that the staff does not need to touch the sewage when replacing and repairing the impeller 23. The connecting rod 22 can be disassembled by plugging and unplugging, which is not affected by the sewage inside the sewage tank 1 and is more convenient.

[0034] A support frame 45 is installed at the position of the drain hole 2 44 on the outer wall of the connection box 1 41, a hydraulic push rod 414 is installed at the middle position of the outer wall of the support frame 45 close to the connection box 1 41, and a telescopic sleeve is installed on the outer wall of the support frame 45 corresponding to the outer side of the hydraulic push rod 414. Limit plates 413 are installed on both sides of the outer wall of the full scraper 415 close to the hydraulic push rod 414. The limit plates 413 limit the full scraper 415 sliding back and forth to prevent the occurrence of position deviation such as tilting. The end of the hydraulic push rod 414 away from the support frame 45 is installed with a full scraper 415. The lower surface of the full scraper 415 is rotatably connected to a number of evenly distributed movable scrapers 416, and the movable scraper 416 is connected to the full scraper 4 A volute spring is provided at the connection position of 15, so that the movable scraper 416 can rebound and reset after an angle rotation occurs. A sliding baffle is provided on the side of the outer wall of the full scraper 415 away from the hydraulic push rod 414. The sliding baffle can slide up and down on one side of the full scraper 415 under the action of the energized spring. After the sliding baffle slides down, the movable scraper 416 is blocked and cannot rotate to the other side away from the hydraulic push rod 414. The size of the overall scraper composed of the full scraper 415 and a plurality of movable scrapers 416 is the same as the cross-sectional size of the second sewage hole 44, so that the overall scraper can completely cover the second sewage hole 44, and the overall scraper slides on one side of the one-way flap, and will not cause damage to the one-way flap.

[0035] A monitoring component is arranged inside the transmission structure, and the monitoring component includes a measuring module, an analysis module and an execution module;

[0036] Under normal conditions, the hydraulic push rod 414 is in an extended state, and sewage is discharged from the hole connecting the first sewage hole 411 and the second sewage hole 44. When the measuring module detects that the sewage flow rate inside the second sewage hole 44 changes, it marks the moment and records the sewage flow rate data, determines that a small blockage occurs inside the second sewage hole 44, generates a test signal, and transmits the test signal to the execution module;

[0037] During the extension and contraction of the hydraulic push rod 414, the measuring module constantly detects the elastic force data and the rotation angle data of each movable scraper 416, and transmits the detected elastic force data and the rotation angle data to the analysis module;

[0038] The analysis module groups the elastic force data and the rotation angle data according to the push-pull sequence of the hydraulic push rod 414 into an elongation group and a shortening group, sorts the data in the two grouped data groups according to the acquisition time, plots the coordinate points in a binary coordinate system with the acquisition time as the X-axis and the processed elastic force mean and rotation angle mean as the Y-axis, and connects the coordinate points corresponding to the elastic force mean and the rotation angle mean;

[0039] When the execution module controls the hydraulic push rod 414 to retract, the measuring module detects the elastic force data and the rotation angle data of each active scraper 416. When the analysis module finds that the elastic force of a certain active scraper 416 in the coordinate system has changed, the active scraper 416 is marked, and the height of the obstruction is determined according to the rotation angle data of the active scraper 416. The position of the obstruction in the sewage outlet is determined according to the time data when the active scraper 416 moves to the corner. If the pulling force of the hydraulic push rod 414 on the full scraper 415 gradually increases after the active scraper 416 changes its angle, it is determined that continuing to pull is likely to aggravate the blockage, and the execution module controls the hydraulic push rod 414 to pull the full scraper 415. The rod 414 is extended. If the force used to extend the hydraulic push rod 414 is greater than the force under normal conditions, and the extension force gradually increases, it is determined that the sewage outlet is blocked and a warning signal to be cleaned is generated; if the force used to extend the hydraulic push rod 414 gradually decreases, after the movable scraper 416 has restored its rotation angle, the energized spring connected to the sliding baffle is controlled to be de-energized, so that the sliding baffle slides down to block the rotation of the movable scraper 416 to one side, and then the hydraulic push rod 414 is continued to be pulled. If the pulling force suddenly decreases before increasing to the set maximum value, it is determined that the blockage is cleared; if the pulling force does not change before increasing to the set maximum value, it is determined that the sewage outlet is blocked and a warning signal to be cleaned is generated;

[0040] In the prior art, when the sewage outlet is blocked, it cannot be discovered in time, resulting in the discharge of sewage at the original speed, which easily increases the load on the equipment, causes damage to the equipment, and may aggravate the degree of blockage;

[0041] When the analysis module determines that the sewage flow rate has changed, it controls the connection box 1 41 and the connection box 2 42 to stop docking through the execution module, and then drives the full scraper 415 and the movable scraper 416 to move to locate the blockage position through the hydraulic push rod 414, and then transmits a signal to the execution module to control the hydraulic push rod 414 to pull back and forth, to determine whether the blockage has changed position during the pulling process, and to determine whether the pulling can solve the blockage. If the blockage is not solved, the connection box 1 41 and the connection box 2 42 continue to dock through the execution module, and slow down the docking speed according to the change of the sewage flow rate, and calculate the time required for docking at this speed, and then compare the docking time with the set replacement time. If the docking time is short, the connection box 1 41 will not be replaced to prevent the docking efficiency from being slowed down due to incorrect operation.

[0042] When the present invention is in use, the connecting box 2 42 is installed on the upper end of the bottom rod 39, and the connecting shaft 47 rotating inside the bottom rod 39 is connected with the cross connecting groove 410 in the connecting box 1 41 through the cross protrusion 46 at the upper end, and then the connecting shaft 47 is driven to rotate by the rotation of the connecting rod 22. The connecting shaft 47 is provided with a planetary gear structure inside the bottom rod 39, and the position of the planetary gear in the planetary gear structure can be adjusted under the action of the pushing rod provided inside. When the planetary gear is embedded in the planetary gear structure, the connecting shaft 47 and the connecting rod 22 rotate in the opposite direction. When the planetary gear and the planetary gear structure are disengaged from each other, the connecting shaft 47 is in a stationary state, so that the load on the rotation of the connecting rod 22 is reduced. During the docking process between the connecting box 2 42 and the connecting box 1 41, the connecting box 2 42 is connected to the connecting box 1 41 through the mutual embedding between the outer embedding groove 48 and the embedding protrusion 49 on the outside to realize the connection of the connecting rod. During the rotation of 22, the second connection box 42 is driven to rotate, and the second drainage hole 44 is provided with a one-way flap inside, so that the external sewage is not easy to flow into the inside. When the second connection box 42 is connected with the first connection box 41, the external sewage inside the inner fitting groove 412 can be discharged outward through the drainage hole 411 and the second drainage hole 44 in the squeezing process of the first connection box 41. During the squeezing process, the connecting rod 22 can be pulled up once, so that the sewage inside the cross connection groove 410 can fall to the bottom, and then discharged under the action of the squeezing force, so that the second connection box 42 and the first connection box 41 are closely connected. The connection box 42 and the first connection box 41 are connected by mutual fitting, so that when the staff replaces and repairs the impeller 23, there is no need to contact the sewage. The connection rod 22 can be disassembled by plugging and unplugging, which is not affected by the sewage inside the sewage tank 1, which is more convenient.

[0043] When the analysis module determines that the sewage flow rate has changed, the execution module controls the connection box 1 41 and the connection box 2 42 to stop docking, and then drives the full scraper 415 and the movable scraper 416 to move to locate the blockage position through the hydraulic push rod 414, and then transmits a signal to the execution module to control the hydraulic push rod 414 to pull back and forth, to determine whether the position of the blockage has changed during the pulling process, and to determine whether the pulling can solve the blockage. If the blockage is not solved, the execution module controls the connection box 1 41 and the connection box 2 42 to continue docking, and according to the change of the sewage flow rate, slows down the docking speed, and calculates the time required for docking at this speed, and then compares the docking time with the set replacement time. If the docking time is short, the connection box 1 41 will not be replaced to prevent the docking efficiency from being slowed down due to wrong operation;

[0044] The top of the support seat 33 is connected to the lower end of the connecting rod 22 through a connecting rod composed of a top rod 43 and a bottom rod 39, so that the rotating shaft composed of the connecting rod 22, the top rod 43 and the bottom rod 39 limits the position of the impeller 23, so that the impeller 23 is not easy to swing and tilt during the rotation process, and the connecting rod 22 drives the connecting shaft 47 to rotate during the rotation process, and the tooth grooves opened at the position of the corresponding groove 310 on the outer side of the connecting shaft 47 are mutually engaged with the transmission gear 311 and driven to rotate, so that the connecting rod 22 can drive the transmission gear 311 to rotate during the rotation process, and the connecting transmission gear The lower end of the rotating shaft of the first 311 is connected to the transmission rod 1 315 through a universal joint, so that when the transmission gear 1 311 rotates, the transmission rod 1 315 can be driven to rotate in the cavity inside the connecting rod 2 38. The other end of the transmission rod 1 315 is connected to the transmission rod 2 312 through a universal joint, so that when the transmission rod 1 315 rotates, the transmission rod 2 312 is driven to rotate in the cavity inside the connecting rod 1 37. The transmission gear 2 313 installed at the other end of the transmission rod 2 312 rotates along with the transmission rod 2 312 during the rotation process. The other end of the transmission rod 2 312 extends to the cavity inside the connecting ring 35. , and the transmission gear 2 313 and the transmission gear 3 314 are perpendicular to each other and interlocked with each other and driven to rotate, so that the rotating wheel coaxial with the transmission gear 3 314 drives the rotating wheel at the adjacent position to rotate through the transmission belt during the rotation process, and the rotating wheel in the internal cavity of the connecting ring 35 also corresponds to the position of the spiral blades 31, so that the eight spiral blades 31 are driven by the connecting rod 22 to rotate, and the spiral blades 31 are rotated during the rotation process to stir the water flow to roll up the sediment at the bottom of the sewage pool 1. Each spiral blade 31 is only for a smaller area at the bottom of the sewage pool 1, so that the force used to roll up the sediment is small, that is, the spiral blades The force of 31 is also reduced, and the rolled-up sediment is mixed in the sewage under the drive of the impeller 23. Compared with the impeller 23 rotating in the air, the impeller 23 whose lower end is supported by the connecting rod 22, the top rod 43 and the bottom rod 39 is more stable during the rotation process, and is not prone to swinging and tilting during the rotation process. The spiral fan blades 31 driven to rotate by the connecting rod 22 will roll up the sediment settled at the bottom in advance during the rotation process, reducing the force required to roll up the sediment during the rotation of the impeller 23, reducing the load on the impeller 23 during the rotation process, and making the rotation of the impeller 23 more stable.

[0045] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A mixer for sewage treatment, comprising a sewage tank (1), a reducer (21) being mounted at the middle of the inner wall of the sewage tank (1) via a mounting plate, an impeller (23) being mounted at the lower end of the reducer (21) via a connecting rod (22), characterized in that: A support seat 1 (33) is installed at a position corresponding to the connecting rod (22) on the internal lower surface of the sewage pool (1), and a bottom rod (39) is installed on the upper surface of the support seat 1 (33). Eight support seats 2 (32) are evenly distributed around the support seat 1 (33) on the internal lower surface of the sewage pool (1), and the upper end of each support seat 2 (32) is rotatably connected to a spiral blade (31) through a support rod (34). A connecting ring (39) is installed at the upper end of each of the eight spiral blades (31). 35), a connecting ring (36) is installed on the outer wall of the bottom rod (39), a connecting rod (38) is installed on the outer wall of the connecting ring (36) at a position corresponding to the second support seat (32), and a connecting rod (37) is installed on the inner wall of the connecting ring (35) at a position corresponding to the second connecting rod (38); a groove (310) is opened on the outer wall of the bottom rod (39) at a position corresponding to the connecting ring (36), and a groove (310) is opened on the inner upper surface of the connecting ring (36) at a position corresponding to the groove (310). A transmission gear 1 (311) is rotatably connected via a rotating shaft, a transmission rod 1 (315) is rotatably connected inside a cavity at the upper portion of the connecting rod 2 (38), and a transmission rod 2 (312) is rotatably connected inside a cavity of the connecting rod 1 (37); cavities are provided at the upper portions of the connecting rod 1 (37) and the connecting rod 2 (38), and the two ends of the transmission rod 1 (315) are respectively connected to the lower end of the rotating shaft of the transmission gear 1 (311) and one end of the transmission rod 2 (312) via universal joints A transmission gear 2 (313) is installed at one end of the transmission rod 2 (312) away from the transmission rod 1 (315), and a cavity is also opened inside the connecting ring (35). A transmission gear 3 (314) is rotatably connected to the position of the transmission gear 2 (313) inside the cavity of the connecting ring (35) via a rotating shaft. A transmission wheel is rotatably connected to the position of each support rod (34) inside the cavity of the connecting ring (35), and adjacent transmission wheels are connected via a transmission belt. A second connection box (42) is installed at the upper end of the bottom rod (39), and external fitting grooves (48) are provided on the four directions of the outer wall of the second connection box (42). A rotating cavity is provided at the center of the bottom rod (39), and a connecting shaft (47) is rotatably connected inside the rotating cavity. A cross protrusion (46) is integrally formed at the upper end of the connecting shaft (47), and a plurality of evenly distributed tooth grooves are provided on the outer wall of the connecting shaft (47) at the position corresponding to the groove (310). A top rod (43) is installed at the middle position of the lower surface inside the impeller (23), and a connection box (41) is installed at the lower end of the top rod (43); An inner fitting groove (412) of the same size as the outer fitting groove (48) is provided at the middle position of the lower surface of the connection box 1 (41), and four fitting protrusions (49) of the same shape and size as the outer fitting groove (48) are integrally formed on the four directions of the inner side wall of the inner fitting groove (412). A plurality of evenly distributed drain holes (44) are provided on the outer side wall of the connection box 1 (41), and each drain hole (44) is provided with a one-way flap. Drain holes (411) are provided at the positions corresponding to the drain holes (44) on the inner upper surface of the inner fitting groove (412), and a cross connection groove (410) is provided at the middle position of the inner upper surface of the inner fitting groove (412); A support frame (45) is installed at a position of the outer wall of the connection box 1 (41) corresponding to the position of the drain hole 2 (44); a hydraulic push rod (414) is installed at a middle position of the outer wall of the support frame (45) close to the connection box 1 (41); a full scraper (415) is installed at one end of the hydraulic push rod (414) away from the support frame (45); a telescopic sleeve is installed on the outer wall of the support frame (45) corresponding to the outer side of the hydraulic push rod (414); limiting plates (413) are installed on both sides of the outer wall of the full scraper (415) close to the hydraulic push rod (414); and a plurality of evenly distributed movable scrapers (416) are rotatably connected to the lower surface of the full scraper (415); A monitoring component is arranged inside the transmission structure, and the monitoring component includes a measuring module, an analysis module and an execution module; Under normal conditions, the hydraulic push rod (414) is in an extended state, and sewage is discharged from the hole connecting the first sewage discharge hole (411) and the second sewage discharge hole (44). When the measuring module detects that the sewage flow rate inside the second sewage discharge hole (44) changes, it marks the moment and records the sewage flow rate data, determines that a small blockage occurs inside the second sewage discharge hole (44), generates a test signal, and transmits the test signal to the execution module; During the extension and contraction of the hydraulic push rod (414), the measuring module constantly detects the elastic force data and the rotation angle data received by each movable scraper (416), and transmits the detected elastic force data and the rotation angle data to the analysis module; The analysis module groups the elastic force data and the rotation angle data according to the push-pull sequence of the hydraulic push rod (414) into an extension group and a shortening group, sorts the data in the two grouped data groups according to the acquisition time, plots coordinate points in a binary coordinate system with the acquisition time as the X-axis and the processed elastic force mean and rotation angle mean as the Y-axis, and connects the coordinate points corresponding to the elastic force mean and rotation angle mean; when the execution module controls the hydraulic push rod (414) to retract, the measurement module detects the elastic force data and rotation angle data received by each movable scraper (416); when the analysis module finds that the elastic force of a certain movable scraper (416) in the coordinate system changes, the movable scraper (416) is marked, and the height of the obstruction is determined based on the rotation angle data of the movable scraper (416) that has changed, and the position of the obstruction in the sewage outlet is determined based on the time data when the movable scraper (416) moves to the point where the rotation angle occurs. If, after the movable scraper (416) changes its rotation angle, the pulling force of the hydraulic push rod (414) on the full scraper (415) gradually increases, it is determined that continued pulling is likely to aggravate the blockage, and the execution module controls the hydraulic push rod (414) to extend. If the force used for the extension of the hydraulic push rod (414) is greater than the force under normal conditions, and the extension force gradually increases, it is determined that the sewage outlet is blocked and a warning signal to be cleared is generated; if the force used for the extension of the hydraulic push rod (414) gradually decreases, after the movable scraper (416) returns to its original rotation angle, the energized spring connected to the sliding baffle is controlled to be de-energized so that the sliding baffle slides down to block the rotation of the movable scraper (416) to one side, and then the hydraulic push rod (414) continues to be pulled. If the pulling force suddenly decreases before increasing to a set maximum value, it is determined that the blockage is cleared; if the pulling force does not change before increasing to a set maximum value, it is determined that the sewage outlet is blocked and a warning signal to be cleared is generated.

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