A sewage pump with a chopping structure

Abstract

The utility model discloses a sewage pump with chopping structure belongs to sewage pump equipment technical field, including the pump body, the bottom fixed connection of pump body has the dirty inlet pipe, and the dirty inlet pipe one side fixed connection has the connecting frame, and the connecting frame one side lower extreme fixed connection has with the hollow sealing pipe of connecting frame vertical, and the dirty inlet pipe with the hollow sealing pipe between being equipped with the dirty inlet, and the dirty inlet pipe outside lower extreme is equipped with the chopping mechanism, and the chopping mechanism outside upper extreme is equipped with the gear ring, and the dirty inlet pipe outside another end is equipped with the drive mechanism, and the dirty inlet pipe outside another end fixed connection has the hollow disc shell, the utility model discloses the pump body through the dirty inlet of dirty inlet pipe suction sewage and sundries, and motor drive shaft and gear rotate, and drive the chopping mechanism rotation through the gear and the gear ring meshing, and two sets of chopping mechanism reverse rotation, and its toothed cutter forms the cross shearing, can cut off, break up big sundries fast, especially tenacity fiber, so can avoid the dirty inlet and pump body block from the source, guarantee suction continuous, reduce the shutdown maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of sewage pump equipment, and in particular to a sewage pump with a shredding structure. Background Technology

[0002] A sewage pump is a type of pump specifically designed for conveying sewage, wastewater, or other corrosive liquids containing impurities such as solid particles, fibers, and sludge. Driven by power, it pumps various types of sewage from low-lying areas, enclosed spaces, or polluted areas to treatment systems, drainage pipes, or designated discharge points. It is widely used in municipal drainage, sewage treatment plants, industrial workshops, construction sites, agricultural irrigation, and other scenarios. It is a key piece of equipment for ensuring smooth drainage, preventing waterlogging, and achieving centralized sewage treatment.

[0003] For example, a sewage pump with a shredding function disclosed in Chinese patent literature (publication number: CN216788768U) uses a drive component to rotate the first and second blades. When the first blade cuts fibrous debris, the blade fixing seat supports the fibrous debris so that it does not swing with the water flow, thereby cutting the fibrous debris. The second blade then cuts the debris that was not cut by the first blade, thus ensuring that the debris can be cut.

[0004] However, this method has certain drawbacks. Both the first and second blades are installed inside the pipe, and the cutting range is limited to the space inside the pipe. When a large foreign object blocks the pipe opening before entering the pipe, the blades inside the pipe cannot reach the blockage point and it is difficult to cut the foreign object. This can easily lead to the pipe opening and subsequent pipe passage being completely blocked, which seriously affects the normal suction function of the sewage pump. Summary of the Invention

[0005] The purpose of this invention is to solve the problems mentioned in the background art and to provide a sewage pump with a shredding structure.

[0006] A sewage pump with a shredding structure includes a pump body. An inlet pipe is fixedly connected to the bottom of the pump body. A connecting frame is fixedly connected to one side of the inlet pipe. A hollow sealing pipe perpendicular to the connecting frame is fixedly connected to the lower end of one side of the connecting frame. An inlet is provided between the inlet pipe and the hollow sealing pipe. A shredding mechanism is provided at the lower outer end of the inlet pipe. A toothed ring is provided at the upper outer end of the shredding mechanism. A drive mechanism is provided at the other outer end of the inlet pipe. A hollow disc is fixedly connected to the other outer end of the inlet pipe.

[0007] The shredding mechanism includes a sleeve, a connecting ring, and an arc-shaped insert. The sleeve is rotatably connected to the lower end of the outer side of the inlet pipe. The lower end of the hollow disc is rotatably connected to the sleeve. A toothed ring is fixedly connected to the upper end of the outer side of the sleeve. The connecting ring is fixedly connected to the lower end of the outer side of the sleeve. The arc-shaped insert is movably inserted into one end of the outer side of the connecting ring. An oblique connecting plate, a toothed cutter, and a protective sleeve are also included. The oblique connecting plate is fixedly connected to the lower end of the front side of the arc-shaped insert. The toothed cutter is fixedly connected to the lower end of the oblique connecting plate. The protective sleeve is movably engaged with the outer side of the oblique connecting plate. The protective sleeve and the toothed cutter are sleeved together.

[0008] The drive mechanism includes a waterproof box and a motor. The waterproof box is fixedly connected to the other end of the outside of the sewage inlet pipe, and the motor is fixedly connected to the inside of the waterproof box. There is also a rotating shaft and a gear. The rotating shaft is fixedly connected to the output end of the motor. The rotating shaft is rotatably connected to the waterproof box and the hollow disc shell respectively. The other end of the rotating shaft extends through the waterproof box into the inside of the hollow disc shell. The gear is fixedly connected to the other end of the rotating shaft that extends into the inside of the hollow disc shell. The gear meshes with a gear ring.

[0009] A drain pipe is fixedly connected to the other end of the pump body via a flange.

[0010] The aforementioned shredding mechanism, toothed ring, driving mechanism, and hollow disc shell are all provided in two sets. The other set of shredding mechanism is located at the upper outer side of the hollow sealing tube, and the other set of driving mechanism is located at the other outer side of the hollow sealing tube.

[0011] The number of the arc-shaped inserts, oblique connecting pieces, toothed cutters, and protective sleeves are all provided in multiple sets. The multiple sets of arc-shaped inserts are located on the outside of the connecting ring in a ring arrangement, and the multiple sets of arc-shaped inserts are all fixed to the connecting ring by bolts.

[0012] The working principle and process of this utility model: When in use, the pump body generates suction through the inlet of the sewage inlet pipe to begin sucking up sewage and debris in it. The motor inside the waterproof box drives the shaft to rotate, and the waterproof box can protect the motor. The gear at the end of the shaft rotates accordingly. Since the gear meshes with the toothed ring on the outside of the chopping mechanism, the rotation of the gear will drive the pipe sleeve to rotate around the sewage inlet pipe, thereby making the entire chopping mechanism rotate. When the pipe sleeve rotates, multiple sets of arc-shaped inserts on its lower connecting ring rotate synchronously, thereby driving the inclined connecting plate and toothed cutter to rotate at high speed. The shredding mechanism on the outside of the hollow sealing pipe rotates in the opposite direction. When larger debris in the sewage enters through the inlet, it will first come into contact with the rotating toothed cutter and be shredded by the high-speed rotating cutter. The toothed cutters rotating in opposite directions in the two sets of shredding mechanisms will form a cross-shearing action on the debris entering the inlet. Compared with a single set of unidirectional rotating cutters, it can cut and crush the debris more quickly, especially for tough fibrous debris. This can prevent larger debris from clogging the inlet when the pump is suctioning, thus preventing it from the source. This design eliminates the problem of large foreign objects clogging the inlet or internal channels of the pump body, ensuring the continuity of the pump's suction process and reducing the number of downtime maintenance due to blockages. The arc-shaped insert can be removed along with the inclined connecting plate and toothed cutter by loosening the bolts, allowing for convenient replacement of the toothed cutter after long-term use, avoiding the difficulty of replacement after wear. Multiple sets can be replaced individually without replacing the whole unit, significantly reducing maintenance costs and replacement difficulty. The protective sleeve is inserted into the inclined connecting plate during installation or disassembly to cover the toothed cutter, preventing accidental injury during operation and providing protection when not in use, extending its service life and preventing accidental contact. The hollow disc housing houses the gear ring and gears, which on the one hand prevents the rotating parts from interfering with the liquid flow and ensures that sewage can enter smoothly, and on the other hand avoids the rotating parts from coming into direct contact with external debris or personnel, thus improving the safety of equipment operation.

[0013] The beneficial effects of this utility model are: In this invention, the pump body draws in sewage and debris through the inlet of the inlet pipe. The motor drives the rotating shaft and gears to rotate, and the gears mesh with the gear ring to drive the chopping mechanism to rotate. The two sets of chopping mechanisms rotate in opposite directions, and their toothed blades form a cross-cutting action, which can quickly cut and crush large debris, especially tough fibers. This can prevent the inlet and pump body from becoming clogged at the source, ensuring continuous pumping and reducing downtime for maintenance. At the same time, the arc-shaped insert is fixed with bolts, and the worn toothed blades can be disassembled and replaced individually without replacing the whole unit, which greatly reduces maintenance costs. The protective sleeve can prevent accidental injury during operation and protect the blades. The hollow disc shell encloses the gears and gear ring, which not only prevents liquid flow interference but also prevents rotating parts from contacting the outside, improving the safety of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the sewage inlet pipe according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the hollow disc shell according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the hollow sealing tube according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the shredding mechanism according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the drive mechanism according to an embodiment of the present invention.

[0015] In the diagram: 1. Pump body; 2. Inlet pipe; 3. Connecting frame; 4. Hollow sealing pipe; 5. Inlet; 6. Shredding mechanism; 61. Pipe sleeve; 62. Connecting ring; 63. Arc-shaped insert; 64. Slanted connecting piece; 65. Toothed cutter; 66. Protective sleeve; 7. Toothed ring; 8. Drive mechanism; 81. Waterproof box; 82. Motor; 83. Shaft; 84. Gear; 9. Hollow disc shell; 10. Drain pipe. Detailed Implementation

[0016] See Figures 1 to 6 The image shown is an embodiment of this utility model.

[0017] A sewage pump with a shredding structure includes a pump body 1 and a core power component that generates suction to draw sewage and debris. This is the main body of the sewage pump. A sewage inlet pipe 2 is fixedly connected to the bottom of the pump body 1, serving as a channel for sewage to enter the pump body. A connecting frame 3 is fixedly connected to one side of the sewage inlet pipe 2, which acts as a connecting component and provides a fixed support.

[0018] A hollow sealing pipe 4 perpendicular to the connecting frame 3 is fixedly connected to the lower end of one side of the connecting frame 3. It cooperates with the sewage inlet pipe 2 and serves as the mounting carrier for other components. A sewage inlet 5 is provided between the sewage inlet pipe 2 and the hollow sealing pipe 4, which is the inlet for sewage and debris to enter the equipment. A shredding mechanism 6 is provided at the lower end of the outer side of the sewage inlet pipe 2.

[0019] The upper outer side of the chopping mechanism 6 is provided with a toothed ring 7, which can transmit power to the chopping mechanism 6. The other side of the sewage inlet pipe 2 is provided with a drive mechanism 8. The other side of the sewage inlet pipe 2 is fixedly connected with a hollow disc shell 9, which encloses the power transmission component, thus preventing the rotating component from interfering with the liquid flow and preventing it from contacting the outside, thereby improving safety. The chopping mechanism 6, the toothed ring 7, the drive mechanism 8, and the hollow disc shell 9 are all provided in two sets. The other set of chopping mechanism 6 is located at the upper outer side of the hollow sealing tube 4, and the other set of drive mechanism 8 is located at the other outer side of the hollow sealing tube 4. The other end of the pump body 1 is fixedly connected to a sewage pipe 10 via a flange, which is the channel through which the treated sewage is discharged from the pump body 1.

[0020] See Figures 1 to 5As shown, the chopping mechanism 6 includes a sleeve 61, a connecting ring 62, and an arc-shaped insert 63. The sleeve 61 is rotatably connected to the lower end of the outer side of the sewage inlet pipe 2. The lower end of the hollow disc shell 9 is rotatably connected to the sleeve 61. The toothed ring 7 is fixedly connected to the upper end of the outer side of the sleeve 61. The connecting ring 62 is fixedly connected to the lower end of the outer side of the sleeve 61. The arc-shaped insert 63 is movably inserted into one end of the outer side of the connecting ring 62. The oblique connecting piece 64, the toothed cutter 65, and the protective sleeve 66 are fixedly connected to the lower end of the front of the arc-shaped insert 63, the toothed cutter 65 is fixedly connected to the lower end of the oblique connecting piece 64, and the protective sleeve 66 is movably snapped onto the outside of the oblique connecting piece 64. The protective sleeve 66 and the toothed cutter 65 are sleeved together. Multiple sets of arc-shaped inserts 63, oblique connecting pieces 64, toothed cutters 65, and protective sleeves 66 are provided. Multiple sets of arc-shaped inserts 63 are arranged in a ring outside the connecting ring 62, and all sets of arc-shaped inserts 63 are fixed to the connecting ring 62 by bolts. When the sleeve 61 rotates, the multiple sets of arc-shaped inserts 63 on its lower connecting ring 62 rotate synchronously, thereby driving the oblique connecting pieces 64 and toothed cutters 65 to rotate at high speed. The chopping mechanism 6 on the outside of the hollow sealing pipe 4 rotates in the opposite direction. When larger debris in the sewage enters through the inlet 5, it will first come into contact with the rotating toothed cutters 65 and be chopped by the high-speed rotating cutters. The opposing rotating toothed cutters 65 in the two sets of chopping mechanisms 6 will create a cross-shearing effect on the debris entering the inlet 5, compared to a single set... The rotating blades can cut and crush debris more quickly, especially for tough fibrous debris. This prevents large debris from clogging the inlet 5 during pumping, thus avoiding the problem of large foreign objects blocking the inlet 5 or the internal channels of the pump body. This ensures the continuity of the pumping process and reduces the number of downtime maintenance due to blockage. The arc-shaped insert 63 can be removed along with the inclined connecting piece 64 and the toothed blade 65 by loosening the bolts, so that the toothed blade 65 can be easily replaced after a long period of time. The protective sleeve 66 is inserted into the inclined connecting piece 64 during installation or disassembly to cover the toothed blade 65, preventing accidental injury during operation and providing protection when not in use.

[0021] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 The drive mechanism 8 includes a waterproof box 81 and a motor 82. The waterproof box 81 is fixedly connected to the other end of the outside of the sewage inlet pipe 2, and the motor 82 is fixedly connected to the inside of the waterproof box 81. The rotating shaft 83 is fixedly connected to the output end of the motor 82. The rotating shaft 83 is rotatably connected to the waterproof box 81 and the hollow disc shell 9 respectively, and the other end of the rotating shaft 83 extends through the waterproof box 81 into the interior of the hollow disc shell 9. The gear 84 is fixedly connected to the other end of the rotating shaft 83 extending into the interior of the hollow disc shell 9. The gear 84 meshes with the gear ring 7. The rotating shaft 83 is driven to rotate by the motor 82 inside the waterproof box 81. The waterproof box 81 can protect the motor 82. The gear 84 at the end of the rotating shaft 83 rotates accordingly. Since the gear 84 meshes with the gear ring 7 on the outside of the chopping mechanism 6, the rotation of the gear 84 will drive the sleeve 61 to rotate around the sewage inlet pipe 2, thereby causing the entire chopping mechanism 6 to rotate.

[0022] The working principle of this utility model: When in use, the pump body 1 generates suction through the inlet 5 of the sewage inlet pipe 2 to begin sucking up sewage and debris in it. The motor 82 inside the waterproof box 81 drives the rotating shaft 83 to rotate. The waterproof box 81 can protect the motor 82. The gear 84 at the end of the rotating shaft 83 rotates accordingly. Since the gear 84 meshes with the toothed ring 7 on the outside of the chopping mechanism 6, the rotation of the gear 84 will drive the sleeve 61 to rotate around the sewage inlet pipe 2, thereby causing the entire chopping mechanism 6 to rotate. When the sleeve 61 rotates, the multiple sets of arc-shaped inserts 63 on its lower connecting ring 62 rotate synchronously, thereby driving the inclined connecting piece 64 and the toothed cutter 65 to rotate at high speed. The chopping mechanism 6 on the outside of the hollow sealing pipe 4 rotates in the opposite direction. When larger debris in the sewage enters through the inlet 5, it will first come into contact with the rotating toothed cutter 65 and be chopped by the high-speed rotating cutter. The toothed cutters 65 rotating in opposite directions in the two sets of chopping mechanisms 6 will form a cross-shearing action on the debris entering the inlet 5. Compared with a single set of unidirectional rotating cutters, it can cut and crush the debris more quickly, especially for tough fibrous debris. This can prevent larger debris from blocking the inlet 5 when the pump body 1 is pumping, thus preventing the blockage from the source. The head avoids the problem of large foreign objects clogging the inlet 5 or the internal channel of the pump body, ensuring the continuity of the pump body 1's suction process, reducing the number of downtime maintenance due to blockage, and the arc-shaped insert 63 can be removed together with the inclined connecting plate 64 and the toothed cutter 65 by loosening the bolts. This allows for convenient replacement of the toothed cutter 65 after a long period of time, avoiding the difficulty of replacement after wear. Moreover, multiple sets can be replaced individually without replacing the whole set, which greatly reduces maintenance costs and replacement difficulty. The protective sleeve 66 is inserted into the inclined connecting plate 64 during installation or disassembly to cover the toothed cutter 65, preventing accidental injury during operation and providing protection when not in use, extending its service life and preventing accidental contact. The hollow disc shell 9 houses the gear ring 7 and gear 84, which on the one hand prevents the rotating parts from interfering with the liquid flow and ensures that sewage can enter smoothly, and on the other hand avoids the rotating parts from coming into direct contact with external debris or personnel, thus improving the safety of equipment operation.

Claims

1. A sewage pump with a shredding structure, characterized in that: The pump body (1) is fixedly connected to the bottom of the pump body (1), and a connecting frame (3) is fixedly connected to one side of the inlet pipe (2). A hollow sealing pipe (4) perpendicular to the connecting frame (3) is fixedly connected to the lower end of one side of the connecting frame (3). An inlet port (5) is provided between the inlet pipe (2) and the hollow sealing pipe (4). A chopping mechanism (6) is provided at the lower end of the outer side of the inlet pipe (2). A toothed ring (7) is provided at the upper end of the outer side of the chopping mechanism (6). A driving mechanism (8) is provided at the other end of the outer side of the inlet pipe (2). A hollow disc shell (9) is fixedly connected to the other end of the outer side of the inlet pipe (2).

2. A sewage pump with a shredding structure according to claim 1, characterized in that: The shredding mechanism (6) includes: a sleeve (61), a connecting ring (62) and an arc-shaped insert (63). The sleeve (61) is rotatably connected to the lower end of the outer side of the sewage inlet pipe (2). The lower end of the hollow disc shell (9) is rotatably connected to the sleeve (61). The toothed ring (7) is fixedly connected to the upper end of the outer side of the sleeve (61). The connecting ring (62) is fixedly connected to the lower end of the outer side of the sleeve (61). The arc-shaped insert (63) is movably inserted into one end of the outer side of the connecting ring (62). The oblique connecting piece (64), the toothed cutter (65), and the protective sleeve (66) are fixedly connected to the lower front end of the arc-shaped insert (63), the toothed cutter (65) is fixedly connected to the lower end of the oblique connecting piece (64), and the protective sleeve (66) is movably snapped onto the outside of the oblique connecting piece (64). The protective sleeve (66) and the toothed cutter (65) are sleeved together.

3. A sewage pump with a shredding structure according to claim 1, characterized in that: The drive mechanism (8) includes a waterproof box (81) and a motor (82). The waterproof box (81) is fixedly connected to the other end of the outside of the sewage inlet pipe (2), and the motor (82) is fixedly connected to the inside of the waterproof box (81). A rotating shaft (83) and a gear (84) are provided. The rotating shaft (83) is fixedly connected to the output end of the motor (82). The rotating shaft (83) is rotatably connected to the waterproof box (81) and the hollow disc shell (9) respectively. The other end of the rotating shaft (83) extends through the waterproof box (81) into the hollow disc shell (9). The gear (84) is fixedly connected to the other end of the rotating shaft (83) extending into the hollow disc shell (9). The gear (84) meshes with the gear ring (7).

4. A sewage pump with a shredding structure according to claim 1, characterized in that: The other end of the pump body (1) is fixedly connected to a drain pipe (10) via a flange.

5. A sewage pump with a shredding structure according to claim 1, characterized in that: The shredding mechanism (6), toothed ring (7), drive mechanism (8) and hollow disc shell (9) are each provided in two sets. The other set of shredding mechanism (6) is located at the upper outer side of the hollow sealing tube (4), and the other set of drive mechanism (8) is located at the other end of the hollow sealing tube (4).

6. A sewage pump with a shredding structure according to claim 2, characterized in that: The number of the arc-shaped insert (63), the oblique connecting piece (64), the toothed cutter (65), and the protective sleeve (66) are all provided in multiple sets. The multiple sets of arc-shaped inserts (63) are arranged in a ring outside the connecting ring (62), and the multiple sets of arc-shaped inserts (63) are all fixed to the connecting ring (62) by bolts.

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