A split sewage pump dedicated to municipal sewage treatment

Abstract

The present invention relates to the technical field of split sewage pumps, and specifically relates to a split sewage pump dedicated to municipal sewage treatment, which includes a base, a motor, a transmission shaft, a pump body and a protective shell; a motor is fixedly installed at the top of the base, and a transmission shaft is fixedly installed at one end of the motor. The other end of the transmission shaft is fixedly installed with the pump body, and the protective shell is fixedly installed on the base. It also includes an adjustment mechanism and a rotation mechanism. The adjustment mechanism is fixedly installed inside the pump body, and the two ends of the adjustment mechanism are fixedly installed with the rotation mechanism. The present invention solves the problem that when the existing split sewage pump pumps sewage, various impurities and waste contained in the sewage are easily wound around the impeller, causing the impeller to be stuck, resulting in the blockage of the sewage pump and requiring manual disassembly and cleaning. It realizes that when the split sewage pump pumps sewage, it can automatically clean impurities and waste without manual disassembly and installation.

Description

Technical Field

[0001] The present invention relates to the technical field of split sewage pumps, and particularly to a split sewage pump dedicated to municipal sewage treatment. Background Art

[0002] A sewage pump is a mechanical device specifically used to pump wastewater from a collection well or storage tank and transport it to a sewer or treatment facility. This equipment plays a crucial role in the urban sewage treatment system and is essential for maintaining the sanitation and health level of the urban environment. According to its application environment and power requirements, sewage pumps can be divided into different types, including submersible sewage pumps, centrifugal sewage pumps, cutting sewage pumps, and split sewage pumps, etc. The split sewage pump consists of two independent parts, namely the motor and the pump body. The design of this structure makes disassembly and maintenance more convenient.

[0003] In municipal sewage treatment, a dedicated split sewage pump is often used to pump sewage, and then the pumped sewage is transported to a sewage treatment plant for treatment. However, when pumping municipal sewage, various impurities and waste will enter the sewage pump along with the sewage. During long-term use, various impurities and waste in the sewage are easily wound around the impeller, causing the impeller to get stuck, resulting in the sewage pump being blocked. In severe cases, it will cause damage to the sewage pump. After the impeller in the split sewage pump gets stuck and blocked, it is necessary to manually disassemble the pump body to clean the inside. The disassembly and installation are troublesome, time-consuming and laborious, reducing the working efficiency of the split sewage pump.

[0004] In view of this, aiming at the above-mentioned deficiencies, the present invention develops a split sewage pump dedicated to municipal sewage treatment. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that when the existing split sewage pump pumps sewage, various impurities and waste contained in the sewage are easily wound around the impeller, causing the impeller to get stuck, resulting in the sewage pump being blocked. In severe cases, it will cause damage to the sewage pump, and it is necessary to manually clean the inside, the disassembly and installation are troublesome, time-consuming and laborious, reducing the working efficiency of the split sewage pump.

[0006] The present invention provides the following technical solution: a split sewage pump dedicated for municipal sewage treatment, comprising a base, a motor, a transmission shaft, a pump body and a protective shell; a motor is fixedly installed at the top of the base, a transmission shaft is fixedly installed at one end of the motor, the other end of the transmission shaft is fixedly installed with the pump body, the protective shell is fixedly installed on the base, and further comprises an adjusting mechanism and a rotating mechanism. The adjusting mechanism is fixedly installed inside the pump body. The adjusting mechanism adsorbs and contracts the blades through electromagnetic force, and at the same time, changes the transmission of power. The two ends of the adjusting mechanism are fixedly installed with rotating mechanisms. The rotating mechanisms transmit the rotational power to the blades through dynamic friction, and the sundries are shredded by the rotating blades.

[0007] When the split sewage pump is pumping sewage, in the case of long-term operation, due to excessive impurities in the sewage, the impeller of the sewage pump will be stuck, causing the sewage pump to be blocked. After the impeller of the sewage pump is stuck, it is necessary to adjust the impeller inside the sewage pump through the adjusting mechanism, so that the impeller contracts, and at the same time, switch the power transmission of the sewage pump and transmit the power to the pump shell of the sewage pump. Through the rotating mechanism, the pump shell of the sewage pump can be rotated, so as to cut and break the impurities and waste inside the pump body, and then discharge them, so as to realize the automatic cleaning of the sewage pump and self-elimination of faults, saving manpower and time, and improving the working efficiency of the sewage pump.

[0008] The adjusting mechanism comprises a turntable, arc-shaped blades, a rotating shaft, a magnetic coupling, a connecting shaft, a moving plate, a connecting rod and an electromagnetic disc. Arc-shaped blades driven by centrifugal force to drive water flow are slidably installed on the turntable. One end of the rotating shaft is fixedly installed at the center position of the turntable, and the rotating shaft is fixedly connected with the connecting shaft through the magnetic coupling. A moving plate is slidably installed on the connecting shaft. Electromagnetic discs are fixedly installed at both ends of the connecting rod. The two electromagnetic discs are respectively located on the side of the turntable and inside the moving plate. The electromagnetic discs pull the arc-shaped blades to contract through electromagnetic adsorption force, and scrape off the attached sundries. At the same time, through electromagnetic repulsion force, the moving plate is pushed to move, and the rotating mechanism is driven to rotate.

[0009] Since the impeller of the split sewage pump is stuck and the motor is still rotating, the power between the pump body and the motor of the sewage pump needs to be cut off through the magnetic coupling to prevent damage to the motor. When the arc blades inside the pump body are stuck, the Hall sensor can detect that the shaft has stopped rotating, and the electromagnetic disk is controlled to be energized, and the arc blades are magnetically adsorbed and retracted into the inside of the turntable, and the impurities and waste wrapped around the arc blades are scraped off by the turntable, thereby realizing the contraction of the arc blades. In order to keep the arc blades able to shrink smoothly to the turntable, the arc blades and the turntable need to rotate together when working and extract sewage. At the same time, in order to remove the debris blocked inside the pump body, after the electromagnetic disk is energized, the drive moving disk will move, and at the same time, the power of the motor will be converted and transmitted to the pump casing, and by rotating, the debris at the front end of the pump body will be cut and broken, and discharged, thereby realizing the self-cleaning of the sewage pump, ensuring that the sewage pump will not be blocked and improving the service life of the sewage pump.

[0010] An arc-shaped groove is provided on the turntable, a connecting rod is provided at the center position of the arc-shaped blade, a circular convex disc is provided on the connecting rod, a compression spring is provided on the circular convex disc, the rotating shaft is a hollow structure, and a circular ring is provided at the inner center position of the hollow structure, the compression spring is located between the circular convex disc and the circular ring, and the connecting rod drives the arc-shaped blade to move axially through the compression spring and resets the adjustment mechanism.

[0011] In order to ensure that the split sewage pump can continue to be used normally after self-cleaning, it is necessary to use the compression spring inside the rotating shaft to reset the arc blades through the elastic potential energy of the compression spring, so as to ensure that the sewage pump can work normally. The arc-shaped recess on the turntable is to be able to quickly retract the arc blades, so as to ensure the cleaning of the sewage pump and its subsequent use.

[0012] A connecting rod is provided on the inner side of the arc-shaped blade, and a circular piece is provided on one side of the connecting rod. The circular piece uses electromagnetic adsorption force to pull the arc-shaped blade to move axially, scraping off attached debris, ensuring that the adjustment mechanism quickly drives the arc-shaped blade to move.

[0013] When the arc-shaped blades are stuck and blocked by debris, they need to be retracted through a strong electromagnetic adsorption force. The circular piece needs to be adsorbed by the adsorption force generated by the electromagnetic disk, and the arc-shaped blades are driven to shrink by the movement of the circular piece, thereby achieving the shrinkage of the stuck arc-shaped blades. In addition, a sliding seal is used between the arc-shaped blades and the turntable to prevent sewage from entering the other side of the turntable and causing damage to the inside of the pump body.

[0014] The outer side of the moving disk is provided with strip-shaped grooves arranged in a circular array centered on the axis. The connecting shaft is provided with rectangular grooves arranged in a circular array centered on the axis for restricting the circumferential rotation of the moving disk. The moving disk increases the friction force through the strip-shaped grooves and is driven by electromagnetic force to change the transmission direction of the rotational power, ensuring that the adjusting mechanism can quickly change the transmitted power.

[0015] After the split sewage pump is blocked, the power transmission of the motor will be cut off from the arc-shaped blade. In order to ensure that the power of the motor is transmitted to the pump housing and the sundries are cut and broken, it is necessary to push the moving disk to move through the repulsive force generated by the electromagnetic disk and transmit the power. At the same time, in order to ensure high power transmission efficiency and drive the pump housing to rotate, it is necessary to increase the friction force through the strip-shaped grooves on the moving disk, so as to transmit the power of the moving disk rotation to the pump housing through the friction force and cut and break the sundries to achieve self-cleaning of the split sewage pump.

[0016] A pressure spring for resetting is arranged on the outer side of the moving disk. A sleeve for limiting is arranged on the pressure spring. The sleeve is in the shape of a hollow cylinder, and the center of the hollow cylinder is fixedly connected to the connecting shaft. The moving disk is driven by the pressure spring and axially displaced to cut off the rotational power, enabling the adjusting mechanism to quickly reset.

[0017] In order to ensure that after the self-cleaning of the split sewage pump is completed, the moving disk can be reset and the power between the moving disk and the pump housing can be cut off, it is necessary to reset the moving disk through the pressure spring on one side of the moving disk, thereby cutting off the power transmission with the pump housing, so that the power of the motor is transmitted to the arc-shaped blade through the magnetic coupling again, enabling the split sewage pump to continue to work.

[0018] The rotating mechanism includes a housing, a rotating ring, a rotating cylinder and a transmission shaft; the housing is fixedly installed inside the pump body. Rotating rings and rotating cylinders are respectively fixedly installed on the inner walls at both ends of the housing. The rotating ring is transmitted through the sub-shafts of the transmission shaft, and the power is transmitted to the rotating ring to cut and break the sundries inside the pump body. The transmission shaft is rotatably installed on the inner wall of the housing, and both ends of the transmission shaft cooperate with the rotating ring and the rotating cylinder respectively.

[0019] After the adjusting mechanism cuts off the power on the arc-shaped blade, it is necessary to transmit the power of the motor to the pump housing through the rotating mechanism. In order to ensure that the power can be transmitted, it is necessary to transmit the rotational power of the motor to the transmission shaft through the rotating cylinder, and then transmit the power to the rotating ring, so as to ensure that the power of the motor can be smoothly transmitted to the rotating ring, and through the rotation of the rotating ring, the sundries are cut and broken and finally discharged, thereby ensuring that the split sewage pump can continue to work normally.

[0020] A support is provided on the inner wall of the shell, and a circular through hole is opened on the support. A fixing rod is provided on the inner wall of the shell, and the fixing rod is fixedly connected to the connecting rod. The fixing rod is used to fix the connecting rod and the electromagnetic disk to provide support force for the adjustment mechanism.

[0021] In order to ensure that the adjustment mechanism can be adjusted through strong magnetic force during adjustment, the electromagnetic disk on the adjustment mechanism needs to be fixed on the outer casing, and a sufficiently large supporting force is applied to the electromagnetic disk so that the adjustment mechanism can quickly retract the arc-shaped blades and quickly switch the power.

[0022] A ring array of rotating teeth is provided on the inner wall of one end of the rotating ring, and an inner ring is provided on the other side of the rotating teeth. The inner ring is in a circular ring shape, and the circular ring shape is used to rotate and seal with the turntable, and isolate the sewage from the outside, to ensure the stable operation of the regulating mechanism. A rotary cutter is provided on the inner wall of the other end of the rotating ring, and the rotary cutter is driven by the rotating ring to cut and break the debris inside the pump body, providing a reset space for the regulating mechanism.

[0023] After the power is transmitted to the swivel, in order to clean up the blocked debris, the swivel needs to rotate to drive the rotary cutter on the swivel. Through the rotation of the rotary cutter, the debris and waste inside the pump body are rotated and cut, and broken up, and finally discharged, thereby realizing the self-cleaning of the split sewage pump and improving the working efficiency of the split sewage pump.

[0024] The annular inner wall of the rotating drum is provided with a circular array of trapezoidal teeth, which are used to receive the rotational power of the transmission shaft. The inner side of the rotating drum is provided with a circular array with the axis as the center. The rotating drum increases friction through the long grooves and receives the rotational power to transmit the rotational power to the rotating mechanism.

[0025] In order to ensure that the power of the motor can be effectively transmitted to the rotating drum, it is necessary to increase the friction between the rotating drum and the movable disk to ensure the effective transmission of power. Through the long grooves, the friction is effectively increased and the power is transmitted, thereby ensuring that the rotary cutter can have sufficient rotational power to rotate and cut the debris and waste and crush them.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. The present invention provides an adjusting mechanism inside the pump body, which contracts the arc-shaped blades. During the contraction process, the impurities and waste wrapped around the arc-shaped blades are scraped off. At the same time, the power is converted and transmitted to the pump casing, and the impurities and waste are rotated and cut and crushed, thereby realizing automatic cleaning and self-troubleshooting of the sewage pump. There is no need for manual disassembly and cleaning, which saves manpower and time and improves the working efficiency of the split sewage pump.

[0028] 2. The present invention is provided with a rotating mechanism inside the pump body. The power is transmitted to the pump casing through the rotating mechanism, and the rotating cutter on the pump casing rotates. Through the rotation and cutting of the rotating cutter, impurities and waste are cut and broken, realizing the automatic cleaning of the sewage pump, and improving the service life and working efficiency of the split sewage pump.

[0029] 3. The present invention is provided with a compression spring and a pressure spring on the arc-shaped blade and the moving disk, so that after the inside of the pump body is automatically cleaned and the fault is eliminated, it can be reset by elastic potential energy, ensuring the subsequent work of the split sewage pump and improving the working efficiency of the split sewage pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0032] Figure 2 is a three-dimensional structure schematic diagram of the inside of the pump body of the present invention;

[0033] Figure 3 is a three-dimensional structure schematic diagram of the rotating mechanism of the adjusting mechanism of the present invention;

[0034] Figure 4 is a three-dimensional structure schematic diagram of the adjusting mechanism of the present invention;

[0035] Figure 5 is a three-dimensional structure schematic diagram of the outer shell of the present invention;

[0036] Figure 6 is a three-dimensional structure schematic diagram of the arc-shaped blade, turntable and circular plate of the present invention;

[0037] Figure 7 is a three-dimensional structure schematic diagram of the moving disk, pressure spring, sleeve and connecting shaft of the present invention;

[0038] Figure 8 is a three-dimensional structure schematic diagram of the electromagnetic disk and connecting rod of the present invention;

[0039] Figure 9 is a three-dimensional structure schematic diagram of the turntable of the present invention;

[0040] Figure 10Schematic three-dimensional structure diagram of the rotary drum of the present invention;

[0041] Figure 11 Schematic three-dimensional structure diagram of the rotary ring of the present invention;

[0042] Figure 12 For the present invention Figure 2 Cross-sectional view at position A;

[0043] Figure 13 Schematic three-dimensional structure diagram of the contraction of the arc-shaped blade of the present invention.

[0044] In the figure: 1, base; 2, motor; 3, transmission shaft; 4, pump body; 5, protective shell; 6, adjusting mechanism; 61, turntable; 611, arc-shaped groove; 612, connecting rod; 613, circular convex disk; 614, compression spring; 62, arc-shaped blade; 621, linkage rod; 622, circular plate; 63, rotating shaft; 631, ring; 64, magnetic coupling; 65, connecting shaft; 651, rectangular groove; 66, moving disk; 661, strip-shaped groove; 662, pressure spring; 663, sleeve; 67, connecting rod; 68, electromagnetic disk; 7, rotating mechanism; 71, housing; 711, support; 712, circular through-hole; 713, fixed rod; 72, rotary ring; 721, rotating teeth; 722, inner ring; 723, rotary knife; 73, rotary drum; 731, trapezoidal teeth; 732, long strip-shaped groove; 74, transmission shaft. Detailed implementation manners

[0045] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the accompanying drawings of the specification and specific implementation manners.

[0046] As Figure 1 , Figure 3 and Figure 4 shown, a split sewage pump dedicated for municipal sewage treatment includes a base 1, a motor 2, a transmission shaft 3, a pump body 4 and a protective shell 5; the motor 2 is fixedly installed at the top of the base 1, one end of the motor 2 is fixedly installed with a transmission shaft 3, the other end of the transmission shaft 3 is fixedly installed with the pump body 4, the protective shell 5 is fixedly installed on the base 1, and further includes an adjusting mechanism 6 and a rotating mechanism 7. The adjusting mechanism 6 is fixedly installed inside the pump body 4. The adjusting mechanism 6 adsorbs and contracts the blades through electromagnetic force, and at the same time, changes the transmission of power. The two ends of the adjusting mechanism 6 are fixedly installed with a rotating mechanism 7. The rotating mechanism 7 transmits the rotational power to the blades through dynamic friction, and the sundries are shredded by the rotating blades.

[0047] When the split sewage pump becomes blocked, the Hall sensor inside the pump body 4 will detect that the pump body 4 is jammed and unable to rotate. By controlling the adjustment mechanism 6, the arc-shaped blades 62 inside the pump body 4 are contracted, and the power of the motor 2 is converted and transmitted to the pump shell. The power is transmitted through the rotating mechanism 7. Finally, the sundries and waste inside the pump body 4 are rotated and cut, broken up, and finally discharged. This realizes the self-cleaning and self-fault elimination of the split sewage pump, eliminating the need for manual disassembly and repair, saving manpower, material resources, and time, and improving the working efficiency of the split sewage pump.

[0048] As Figure 2 , Figure 4 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 12 and Figure 13 shown, the adjustment mechanism 6 includes a turntable 61, arc-shaped blades 62, a rotating shaft 63, a magnetic coupling 64, a connecting shaft 65, a moving plate 66, a connecting rod 67, and an electromagnetic disk 68. The arc-shaped blades 62 that drive the water flow by centrifugal force are slidably installed on the turntable 61. One end of the rotating shaft 63 is fixedly installed at the center of the turntable 61, and the rotating shaft 63 is fixedly connected to the connecting shaft 65 through the magnetic coupling 64. A moving plate is slidably installed on the connecting shaft 65. The two ends of the connecting rod 67 are respectively fixedly installed with electromagnetic disks 68. The two electromagnetic disks 68 are respectively located on the side of the turntable 61 and inside the moving plate 66. The electromagnetic disks 68 will, through electromagnetic adsorption force, pull the arc-shaped blades 62 to contract and scrape off the attached sundries. At the same time, through electromagnetic repulsion force, the moving plate 66 will be pushed to move and drive the rotating mechanism 7 to rotate.

[0049] When the arc-shaped blades 62 on the split sewage pump are jammed and blocked, first, the power of the motor 2 is cut off through the magnetic coupling 64. At the same time, the Hall sensor inside the pump body 4 will detect that the rotating shaft 63 cannot rotate. By controlling the electromagnetic disk 68 to be energized, after the electromagnetic disk 68 is energized, an adsorption force will be generated to adsorb the arc-shaped blades 62, causing the arc-shaped blades 62 to axially contract inward and move into the turntable 61. And during the moving process, the sundries and waste on the arc-shaped blades 62 are scraped off. At the same time, the electromagnetic disk 68 on the other side of the connecting shaft 65 will generate a repulsive force to push the moving plate 66 to axially move and come into contact with the rotating mechanism 7. Since the moving plate 66 is always rotating, after coming into contact with the rotating mechanism 7, the power will be transmitted to the rotating mechanism 7, thereby cutting and breaking up the sundries inside the pump body 4. This realizes the contraction of the arc-shaped blades 62, prevents the arc-shaped blades 62 from being jammed, and at the same time cuts and breaks up the sundries and waste inside the pump body 4 and discharges them, improving the working efficiency of the split sewage pump.

[0050] As Figure 9 and Figure 12 shown, an arc-shaped groove 611 is formed in the turntable 61, a connecting rod 612 is arranged at the center position of the arc-shaped blade 62, a circular convex disc 613 is arranged on the connecting rod 612, a compression spring 614 is arranged on the circular convex disc 613, the rotating shaft 63 is of a hollow structure, and a circular ring 631 is arranged at the center position inside the hollow structure. The compression spring 614 is located between the circular convex disc 613 and the circular ring 631. The connecting rod 612 drives the arc-shaped blade 62 to move axially through the compression spring 614, and resets the adjusting mechanism 6.

[0051] When the electromagnet 68 is energized, an adsorption force will be generated, driving the arc-shaped blade 62 to move axially. During the movement, the connecting rod 612 on the arc-shaped blade 62 moves accordingly, and compresses the compression spring 614 until the arc-shaped blade 62 moves into the arc-shaped groove 611 on the turntable 61, thus realizing the contraction of the arc-shaped blade 62. After the sundries and waste in the pump body 4 are cleaned up, due to the elastic potential energy of the compression spring 614, the connecting rod 612 will be pushed to move axially, driving the arc-shaped blade 62 to extend, thus realizing the reset of the arc-shaped blade 62, enabling the split sewage pump to continue working and improving the working efficiency of the split sewage pump.

[0052] As Figure 3 , Figure 4 , Figure 6 and Figure 12 shown, a linkage rod 621 is arranged inside the arc-shaped blade 62, a circular piece 622 is arranged on one side of the linkage rod 621. The circular piece 622 moves by electromagnetic adsorption force, pulling the arc-shaped blade 62 to move axially, scraping off the attached sundries, and ensuring that the adjusting mechanism 6 drives the arc-shaped blade 62 to move quickly.

[0053] When the electromagnet 68 is energized, an adsorption force will be generated, adsorbing the circular piece 622 to move. During the movement of the circular piece 622, the linkage rod 621 will be driven to move, and the linkage rod 621 will drive the arc-shaped blade 62 to contract into the arc-shaped groove 611 on the turntable 61, thus realizing the contraction of the arc-shaped blade 62.

[0054] As Figure 7 and Figure 12 shown, strip-shaped grooves 661 are annularly arrayed on the outer side of the moving disk 66 with the axis as the center, and rectangular grooves 651 for restricting the circumferential rotation of the moving disk 66 are annularly arrayed on the connecting shaft 65 with the axis as the center. The moving disk 66 increases the friction force through the strip-shaped grooves 661 and is driven by electromagnetic force to change the transmission direction of the rotational power, ensuring that the adjusting mechanism 6 quickly changes the transmitted power.

[0055] While the arc-shaped blade 62 is moving, the electromagnet 68 on one side of the moving disk 66 is energized simultaneously, generating a repulsive force that repels and drives the moving disk 66 to move axially. The moving disk 66 slides within the rectangular groove 651 and contacts the rotating mechanism 7, thereby transmitting power to the rotating mechanism 7 and causing the rotating mechanism 7 to rotate.

[0056] As Figure 4 , Figure 7 and Figure 12 shown, a compression spring 662 for resetting is provided on the outer side of the moving disk 66. A sleeve 663 for limiting position is provided on the compression spring 662. The sleeve 663 is in the shape of a hollow cylinder, and the center of the hollow cylinder is fixedly connected to the connecting shaft 65. The moving disk 66 is driven by the compression spring 662 and axially displaced to cut off the rotational power, enabling the adjustment mechanism 6 to quickly reset.

[0057] During the movement of the moving disk 66, the moving disk 66 will slide axially within the rectangular groove 651 and compress the compression spring 662, so that the moving disk 66 contacts the rotating mechanism 7 and transmits power to the rotating mechanism 7. After the impurities and waste inside the pump body 4 are cleaned up, the electromagnet 68 will be de-energized, and the moving disk 66 will utilize the elastic potential energy of the compression spring 662 to disengage the moving disk 66 from the rotating mechanism 7 and cut off the power transmission, realizing the reset of the moving disk 66.

[0058] As Figure 2 , Figure 3 , Figure 5 , Figure 10 , Figure 11 and Figure 12 shown, the rotating mechanism 7 includes a housing 71, a rotating ring 72, a rotating cylinder 73, and a transmission shaft 74; the housing 71 is fixedly installed inside the pump body 4, and a rotating ring 72 and a rotating cylinder 73 are respectively fixedly installed on the inner walls at both ends of the housing 71. The rotating ring 72 is transmitted through the sub-shaft of the transmission shaft 74, and power is transmitted to the rotating ring 72 to cut and break the sundries inside the pump body 4. The transmission shaft 74 is rotatably installed on the inner wall of the housing 71, and both ends of the transmission shaft 74 cooperate with the rotating ring 72 and the rotating cylinder 73 respectively.

[0059] After the power is transmitted to the rotating mechanism 7, the rotating cylinder 73 on the rotating mechanism 7 will rotate, driving the transmission shaft to rotate. The transmission shaft 74 rotates to transmit power to the rotating ring 72, and through the rotation of the rotating ring 72, the sundries and waste inside the pump body 4 are rotationally cut and broken, and finally discharged, realizing the self-cleaning and self-fault removal of the split sewage pump and improving the working efficiency of the split sewage pump.

[0060] As Figure 5 andFigure 12 As shown, a support 711 is provided on the inner wall of the housing 71. A circular through-hole 712 is formed in the support 711. A fixing rod 713 is provided on the inner wall of the housing 71, and the fixing rod 713 is fixedly connected to the connecting rod 67. The fixing rod 713 is used to fix the connecting rod 67 and fix the electromagnetic disk 68, providing a supporting force for the adjusting mechanism 6.

[0061] When the adjusting mechanism 6 is adjusted, the housing 71 always supports the electromagnetic disk 68 and provides a supporting force for the electromagnetic disk 68 through the fixing rod 713. The transmission shaft 74 will rotate on the support 711 and transmit the power to the rotating ring 72.

[0062] As Figure 11 and Figure 12 shown, on the inner wall of one end of the rotating ring 72, rotating teeth 721 are annularly arranged in an array. On the other side of the rotating teeth 721, an inner ring 722 is provided. The inner ring 722 is circular and is used for rotatably and sealingly connecting with the rotating disk 61 and isolating sewage, ensuring the stable operation inside the adjusting mechanism 6. On the inner wall of the other end of the rotating ring 72, a rotating cutter 723 is provided. The rotating cutter 723 is driven by the rotation of the rotating ring 72 and cuts and breaks the sundries inside the pump body 4, providing a reset space for the adjusting mechanism 6.

[0063] When the power is transmitted to the transmission shaft 74, the gear transmission on the transmission shaft 74 will drive the rotating ring 72 to rotate. During the rotation of the rotating ring 72 on the housing 71, the internal rotating cutter 723 will be driven to rotate. The rotating cutter 723 will cut and break the impurities and waste inside the pump body 4 through the rotational power, thereby realizing the self-cleaning of the split sewage pump and improving the working efficiency of the split sewage pump.

[0064] As Figure 10 and Figure 12 shown, trapezoidal teeth 731 are annularly arranged in an array on the annular inner wall of the rotating cylinder 73. The trapezoidal teeth 731 are used to receive the rotational power of the transmission shaft 74. Long strip grooves 732 are annularly arranged around the axis on the inner side of the rotating cylinder 73. The rotating cylinder 73 increases the friction force through the long strip grooves 732 and accesses the rotational power, transmitting the rotational power to the rotating mechanism 7.

[0065] After the moving disk 66 moves through the repulsive force of the electromagnetic disk 68, it will come into contact with the long strip grooves 732 on the rotating cylinder 73, transmit the power to the rotating cylinder 73 through the friction force, and cause the rotating cylinder 73 to rotate. When the rotating cylinder 73 rotates, it drives the transmission shaft 74 to rotate through the trapezoidal teeth 731, thereby transmitting the power to the rotating ring 72, and cutting and breaking the sundries and waste through the rotating cutter 723, and finally discharging them.

[0066] During operation, when the split sewage pump becomes blocked, the power of the motor 2 is cut off through the magnetic coupling 64. At the same time, the Hall sensor inside the pump body 4 detects that the rotating shaft 63 cannot rotate. By controlling the energization of the electromagnetic disk 68, after the electromagnetic disk 68 is energized, an adsorption force is generated, and the circular piece 622 is adsorbed and moved. During the movement of the circular piece 622, the linkage rod 621 will be driven to move. The linkage rod 621 will drive and drive the arc-shaped blade 62 to move axially. During the movement, the connecting rod 612 on the arc-shaped blade 62 will move accordingly and compress the compression spring 614 until the arc-shaped blade 62 moves into the arc-shaped groove 611 on the turntable 61. At the same time as the arc-shaped blade 62 moves, the electromagnetic disk 68 on one side of the moving disk 66 is energized simultaneously and generates a repulsive force, which will push the moving disk 66 to move axially. The moving disk 66 will slide axially in the rectangular groove 651 and compress the pressure spring 662. When the moving disk 66 moves through the repulsive force of the electromagnetic disk 68, it will come into contact with the long groove 732 on the rotating cylinder 73, and the power will be transmitted to the rotating cylinder 73 through friction, causing the rotating cylinder 73 to rotate. When the rotating cylinder 73 rotates, it drives the transmission shaft 74 to rotate through the trapezoidal teeth 731. The gear transmission on the transmission shaft 74 will drive the rotating ring 72 to rotate. During the rotation of the rotating ring 72 on the outer shell 71, the internal rotating blade 723 will be driven to rotate. The rotating blade 723 will cut and break up the impurities and waste inside the pump body 4 through the rotational power, and finally discharge them, thus realizing the self-cleaning of the split sewage pump and improving the working efficiency of the split sewage pump.

[0067] The arc-shaped blade 62 is adsorbed, causing the arc-shaped blade 62 to contract axially inward and move into the turntable 61. During the movement, the sundries and waste on the arc-shaped blade 62 are scraped off. At the same time, the electromagnetic disk 68 on the other side of the connecting shaft 65 generates a repulsive force, pushing the moving disk 66, driving the moving disk 66 to move axially and come into contact with the rotating mechanism 7. Since the moving disk 66 is always rotating, after coming into contact with the rotating mechanism 7, the power is transmitted to the rotating mechanism 7, thereby cutting and breaking up the sundries inside the pump body 4, realizing the contraction of the arc-shaped blade 62, preventing the arc-shaped blade 62 from being stuck, and at the same time cutting and breaking up the sundries and waste inside the pump body 4 and discharging them, improving the working efficiency of the split sewage pump.

[0068] After the debris and waste inside the pump body 4 are cleared, the electromagnetic disk 68 will be powered off. The arc-shaped blade 62 will utilize the elastic potential energy of the compression spring 614 to push the connecting rod 612 to axially move, driving the arc-shaped blade 62 to extend, thereby realizing the reset of the arc-shaped blade 62. Meanwhile, the moving disk 66 will also utilize the elastic potential energy of the pressure spring 662 to disengage the moving disk 66 from the rotating cylinder 73 and cut off the power transmission, achieving the reset of the moving disk 66, enabling the split sewage pump to continue operating.

[0069] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A split sewage pump dedicated for municipal sewage treatment, comprising a base (1), a motor (2), a transmission shaft (3), a pump body (4) and a protective shell (5); a motor (2) is fixedly installed at the top of the base (1), one end of the motor (2) is fixedly installed with a transmission shaft (3), the other end of the transmission shaft (3) is fixedly installed with the pump body (4), and the protective shell (5) is fixedly installed on the base (1), characterized in that: It also includes an adjusting mechanism (6) and a rotating mechanism (7). The adjusting mechanism (6) is fixedly installed inside the pump body (4). The adjusting mechanism (6) adsorbs and contracts the blades through electromagnetic force, and at the same time, changes the transmission of power. The two ends of the adjusting mechanism (6) are fixedly installed with the rotating mechanism (7). The rotating mechanism (7) transmits the rotational power to the blade through dynamic friction force, and the sundries are shredded by the rotating blade. The adjusting mechanism (6) includes a turntable (61), arc-shaped blades (62), a rotating shaft (63), a magnetic coupling (64), a connecting shaft (65), a moving disk (66), a connecting rod (67) and an electromagnetic disk (68). An arc-shaped blade (62) that drives the water flow through centrifugal force is slidably installed on the turntable (61). One end of the rotating shaft (63) is fixedly installed at the center position of the turntable (61). The rotating shaft (63) and the connecting shaft (65) are fixedly connected through the magnetic coupling (64). A moving disk (66) is slidably installed on the connecting shaft (65). Electromagnetic disks (68) are fixedly installed at both ends of the connecting rod (67). The two electromagnetic disks (68) are respectively located on the side of the turntable (61) and the inside of the moving disk (66). The electromagnetic disks (68) pull the arc-shaped blades (62) to contract through electromagnetic adsorption force and scrape off the attached sundries. At the same time, the moving disk (66) is pushed to move through electromagnetic repulsion force, driving the rotating mechanism (7) to rotate.

2. The split sewage pump dedicated to municipal sewage treatment according to claim 1, wherein: An arc-shaped groove (611) is formed on the turntable (61). A connecting rod (612) is arranged at the center of the arc-shaped blade (62). A circular convex disk (613) is arranged on the connecting rod (612). A compression spring (614) is arranged on the circular convex disk (613). The rotating shaft (63) is of a hollow structure, and a ring (631) is arranged at the center of the hollow structure. The compression spring (614) is located between the circular convex disk (613) and the ring (631). The connecting rod (612) drives the arc-shaped blade (62) to axially move through the compression spring (614) and resets the adjusting mechanism (6).

3. The split sewage pump dedicated to municipal sewage treatment according to claim 1, characterized in that: A linkage rod (621) is arranged inside the arc-shaped blade (62). A circular piece (622) is arranged on one side of the linkage rod (621). The circular piece (622) pulls the arc-shaped blade (62) to axially move through electromagnetic adsorption force and scrape off the attached sundries, ensuring that the adjusting mechanism (6) quickly drives the arc-shaped blade (62) to move.

4. The split sewage pump dedicated to municipal sewage treatment according to claim 1, wherein: Bar-shaped grooves (661) are annularly arranged on the outer side of the moving disk (66) with the axis as the center. Rectangular grooves (651) for restricting the circumferential rotation of the moving disk (66) are annularly arranged on the connecting shaft (65) with the axis as the center. The moving disk (66) increases the friction force through the bar-shaped grooves (661) and changes the transmission direction of the rotational power through electromagnetic force drive, ensuring that the adjusting mechanism (6) quickly changes the transmitted power.

5. The split sewage pump dedicated to municipal sewage treatment according to claim 1, wherein: A pressure spring (662) for resetting is arranged on the outer side of the moving disk (66). A sleeve (663) for limiting is arranged on the pressure spring (662). The sleeve (663) is in the shape of a hollow cylinder. The center of the hollow cylinder is fixedly connected to the connecting shaft (65). The moving disk (66) is driven by the pressure spring (662) and axially displaced to cut off the rotational power, so that the adjusting mechanism (6) can be quickly reset.

6. The split sewage pump dedicated to municipal sewage treatment according to claim 1, characterized in that: The rotating mechanism (7) includes a housing (71), a rotating ring (72), a rotating cylinder (73) and a transmission shaft (74). The housing (71) is fixedly installed inside the pump body (4). A rotating ring (72) and a rotating cylinder (73) are respectively fixedly installed on the inner walls at both ends of the housing (71). The rotating ring (72) is transmitted through the sub-shaft of the transmission shaft (74), and the power is transmitted to the rotating ring (72) to cut and break the sundries inside the pump body (4). The transmission shaft (74) is rotatably installed on the inner wall of the housing (71), and both ends of the transmission shaft (74) are respectively matched with the rotating ring (72) and the rotating cylinder (73).

7. The split sewage pump dedicated to municipal sewage treatment according to claim 6, characterized in that: A support (711) is arranged on the inner wall of the housing (71). A circular through-hole (712) is opened on the support (711). A fixing rod (713) is arranged on the inner wall of the housing (71), and the fixing rod (713) is fixedly connected to the connecting rod (67). The fixing rod (713) is used to fix the connecting rod (67) and fix the electromagnetic disk (68) to provide a supporting force for the adjusting mechanism (6).

8. The split sewage pump dedicated to municipal sewage treatment according to claim 6, characterized in that: Rotating teeth (721) are annularly arranged on the inner wall at one end of the rotating ring (72). An inner ring (722) is arranged on the other side of the rotating teeth (721). The inner ring (722) is circular and is used for rotatably and sealingly connecting with the rotating disk (61) to isolate the sewage, ensuring the stable operation inside the adjusting mechanism (6). A rotating knife (723) is arranged on the inner wall at the other end of the rotating ring (72). The rotating knife (723) is driven by the rotation of the rotating ring (72) to cut and break the sundries inside the pump body (4) to provide a reset space for the adjusting mechanism (6).

9. The split sewage pump dedicated to municipal sewage treatment according to claim 6, characterized in that: Trapezoidal teeth (731) are annularly arranged on the annular inner wall of the rotating cylinder (73). The trapezoidal teeth (731) are used to receive the rotational power of the transmission shaft (74). Long strip grooves (732) are annularly arranged with the axis as the center on the inner side of the rotating cylinder (73). The rotating cylinder (73) increases the friction force through the long strip grooves (732) and accesses the rotational power to transmit the rotational power to the rotating mechanism (7).

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