High-efficiency submerged sewage pump

Abstract

The invention discloses a high-efficiency submerged sewage pump, and relates to the field of sewage pumps, the high-efficiency submerged sewage pump comprises a fixed seat and a pump body arranged on one side of the fixed seat, the top end of the pump body and one side far away from the fixed seat are both provided with water gaps, the end parts of the two water gaps are respectively communicated with a buffer mechanism and a filter mechanism, the buffer mechanism comprises a first flange, and the first flange is provided with a second flange; a fixed cylinder is fixed to the middle of the first flange, the top end and the bottom end of the fixed cylinder both extend out of the first flange, the other end of the driving shaft can be connected with a driving mechanism, the impeller can be driven to rotate by starting the driving motor, and therefore the liquid discharging function is achieved, and liquid enters through one water opening and then is discharged through the other water opening. The filtering mechanism is used for filtering input liquid, damage or blockage caused by the fact that impurities and particles enter the pump body is reduced, the buffering mechanism can buffer output liquid, the liquid discharging pressure at a water opening is reduced, and therefore the working efficiency of the pump body is improved, and the service life of the pump body is prolonged.

Description

Technical Field

[0001] The invention relates to the field of sewage pumps, in particular to a high-efficiency submersible sewage pump. Background Art

[0002] A sewage pump is a pump product that is connected to a motor and works underwater at the same time. Compared with general horizontal pumps or vertical sewage pumps, sewage pumps have a compact structure and occupy a small area. They are easy to install and maintain. Large sewage pumps are generally equipped with automatic coupling devices for automatic installation, which is very convenient for installation and maintenance. They have a long continuous operation time. Since the sewage pump and the motor are coaxial, the shaft is short, and the rotating parts are light, the load (radial) on the bearings is relatively small.

[0003] Because the liquid contains impurities, after the impurity-mixed liquid enters the pump body, the impurities will come into contact with the impeller, which can easily cause blockage. The accumulation of impurities will increase the rotation pressure of the impeller, thereby reducing its service life.

[0004] Therefore, it is necessary to propose a high-efficiency submersible sewage pump to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a high-efficiency submersible sewage pump to solve the problem that, due to impurities contained in the liquid, after the impurity-mixed liquid enters the interior of the pump body, the impurities will come into contact with the impeller, easily causing blockage, and the accumulation of impurities will increase the rotation pressure of the impeller, thereby reducing the service life.

[0006] To achieve the above object, the present invention provides the following technical solution: a high-efficiency submersible sewage pump, comprising a fixed seat and a pump body arranged on one side of the fixed seat, wherein the top of the pump body and the side away from the fixed seat are both provided with water inlets, and the ends of the two water inlets are respectively connected with a buffer mechanism and a filtering mechanism;

[0007] The buffer mechanism comprises a first flange, a fixed cylinder is fixed in the middle of the first flange, the top and bottom of the fixed cylinder both extend out of the first flange, and a support plate is fixed between the bottom and the middle of the fixed cylinder, both support plates are provided with through grooves for water flow to pass through, a rotating shaft is rotatably connected between the middles of the two support plates, and a spiral conveying sheet is fixed on the outside of the rotating shaft;

[0008] The top end of the fixed tube is connected to the second water pipe, the top end of the fixed tube extends into the second water pipe, and the bottom end of the fixed tube extends into the corresponding water port.

[0009] Preferably, an outer upper end of the fixing tube is provided with an external thread, and the inner part of the second water pipe and the external thread are threadably matched with each other.

[0010] Preferably, a second flange is fixed to the bottom end of the outer side of the second water pipe, the second flange is connected to the first flange, and a fastening mechanism is fixed to the outer side of the second water pipe.

[0011] Preferably, the filtering mechanism includes an outer cylinder, a filter mesh cylinder is arranged inside the outer cylinder, a spacing is left between the inner wall of the outer cylinder and the outer side of the filter mesh cylinder, and a plurality of connecting rods are fixed between the inner wall of the outer cylinder and the outer side of the filter mesh cylinder, and a movable disk is provided on the outer sliding sleeves of the plurality of connecting rods.

[0012] Preferably, a discharge port is connected to a side of the outer cylinder close to the pump body, and the discharge port is communicated with the interior of the filter cylinder. A first water pipe is connected to an end of the outer cylinder away from the pump body, and the first water pipe is communicated with the interior of the outer cylinder.

[0013] Preferably, a through opening is provided on the outside of the outer cylinder, and a side baffle is rotatably connected in the through opening, an auxiliary handle is fixedly connected to one side of the side baffle, a limit plate is provided below the auxiliary handle, the limit plate is hinged to the side baffle, a fixing column is provided below the limit plate, the fixing column is fixedly connected to the outer cylinder, and a limit hole is provided on the limit plate for the fixing column to pass through.

[0014] Preferably, the fastening mechanism includes two semicircular hoops, which are relatively combined to form a circle and are sleeved on the outside of the second water pipe. Connecting plates are fixed at both ends of the two semicircular hoops, and fixing bolts are arranged between the two corresponding connecting plates.

[0015] Preferably, a drive shaft is rotatably connected inside the fixed seat, one end of the drive shaft extends into the interior of the pump body, an impeller is fixedly connected to the outer side of the extended end of the drive shaft, and the impeller is rotatably connected to the interior of the pump body.

[0016] Preferably, the discharge port and the corresponding water outlet are connected via a flange, and the interior of the pump body is coated with a waterproof and anti-corrosion coating.

[0017] Preferably, a plurality of supporting legs are fixed to the bottom ends of the fixing seat and the pump body, and anti-slip pads are fixed to the bottom ends of the plurality of supporting legs.

[0018] Technical effects and advantages of the present invention:

[0019] 1. In the actual operation of the invention, the other end of the drive shaft can be connected to a drive mechanism, such as a drive motor, etc. The start of the drive motor can drive the impeller to rotate, thereby realizing the discharge function, allowing the liquid to enter through one water outlet and then be discharged through another water outlet. The filter mechanism is used to filter the input liquid to reduce the damage or blockage caused by impurities and particles entering the interior of the pump body. The buffer mechanism can buffer the output liquid and reduce the discharge pressure at the water outlet, thereby improving the working efficiency and life of the pump body.

[0020] 2. In the actual operation of the present invention, when the liquid passes through the fixed cylinder from bottom to top, the impact force of the liquid will drive the spiral conveyor to rotate, thereby converting the impact force of the liquid into the rotational force of the spiral conveyor, thereby reducing the impact of the liquid on the water inlet and the second water pipe, and avoiding loosening of the connection.

[0021] 3. Furthermore, the top and bottom ends of the fixing cylinder extend into the second water pipe and the water outlet respectively, and the second water pipe and the water outlet are tightly connected together by using the fixing cylinder, so as to block and protect the gap at the connection, thereby strengthening the structural strength of the connection, improving the safety of use, and avoiding the problem of separation or liquid leakage between the second water pipe and the water outlet.

[0022] 4. In the actual operation of the present invention, the two semicircular hoops can tighten the outside of the second water pipe. At the same time, due to the existence of a fixed cylinder inside the second water pipe, when the two semicircular hoops are tightened, the second water pipe and the fixed cylinder can be tightened at the same time, reducing the gap between the second water pipe and the fixed cylinder, avoiding liquid overflow and shaking of the second water pipe and the fixed cylinder.

[0023] 5. In the actual operation of the present invention, liquid can enter from the first water pipe, and the liquid will enter the space between the filter mesh cylinder and the outer cylinder. Impurities inside the liquid will be intercepted by the filter mesh cylinder, and the filtered liquid can enter the interior of the filter mesh cylinder, and finally enter the interior of the pump body through the discharge port, which can prevent impurities from entering the pump body and reduce the phenomenon of impeller being blocked or overloaded due to impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the high-efficiency submersible sewage pump of the present invention.

[0025] Figure 2 It is a schematic structural diagram of the external thread and the second flange of the present invention.

[0026] Figure 3 It is a schematic structural diagram of the first flange and the fixing cylinder of the present invention.

[0027] Figure 4 It is a schematic diagram of the structure of the rotating shaft and the spiral conveying sheet of the present invention.

[0028] Figure 5 It is a schematic structural diagram of the filter screen cartridge of the present invention.

[0029] Figure 6 For the present invention Figure 5 Enlarged schematic diagram at point A in the middle.

[0030] Figure 7 For the present invention Figure 5 Enlarged schematic diagram of point B in the middle.

[0031] Figure 8 It is a schematic structural diagram of the discharge port of the present invention.

[0032] Fig. 9 It is a schematic structural diagram of the connecting plate and the fixing bolts of the present invention.

[0033] In the figure: 1. fixing seat; 2. pump body; 3. water inlet; 4. filtering mechanism; 5. first water pipe; 6. buffer mechanism; 7. second water pipe; 8. first flange; 9. fixing cylinder; 10. supporting plate; 11. through groove; 12. rotating shaft; 13. spiral conveying sheet; 14. external thread; 15. second flange; 16. side baffle; 17. auxiliary handle; 18. limit plate; 19. fixing column; 20. filter cylinder; 21. connecting rod; 22. discharge port; 23. semicircular hoop; 24. connecting plate; 25. fixing bolt; 26. outer cylinder; 27. movable disk. DETAILED DESCRIPTION

[0034] The present invention provides Figures 1 to 9 A high-efficiency submersible sewage pump shown in the figure includes a fixed base 1 and a pump body 2 arranged on one side of the fixed base 1. Water outlets 3 are opened at the top of the pump body 2 and on the side away from the fixed base 1. The ends of the two water outlets 3 are respectively connected to a buffer mechanism 6 and a filtering mechanism 4. A driving shaft is rotatably connected inside the fixed base 1, and one end of the driving shaft extends into the interior of the pump body 2. An impeller is fixedly connected to the outer side of the extended end of the driving shaft, and the impeller is rotatably connected to the interior of the pump body 2.

[0035] The pump body 2 and the fixing seat 1 may be made of waterproof material and can be used underwater.

[0036] In the actual operation of the invention, the other end of the drive shaft can be connected to a drive mechanism, such as a drive motor, etc. The start-up of the drive motor can drive the impeller to rotate, thereby realizing the discharge function, allowing the liquid to enter through one water outlet 3 and then be discharged through another water outlet 3. The filtering mechanism 4 is used to filter the input liquid to reduce the damage or blockage caused by impurities and particles entering the interior of the pump body 2. The buffer mechanism 6 can buffer the output liquid and reduce the discharge pressure at the water outlet 3, thereby improving the working efficiency and life of the pump body 2.

[0037] The buffer mechanism 6 includes a first flange 8, a fixed cylinder 9 is fixed in the middle of the first flange 8, the top and bottom of the fixed cylinder 9 both extend out of the first flange 8, and support plates 10 are fixed between the bottom and the middle of the fixed cylinder 9, and the two support plates 10 are provided with through grooves 11 for water flow to pass through, a rotating shaft 12 is rotatably connected between the middle parts of the two support plates 10, a spiral conveying sheet 13 is fixed on the outside of the rotating shaft 12, and the top of the fixed cylinder 9 is connected to the second water pipe 7, the top of the fixed cylinder 9 extends into the second water pipe 7, and the bottom of the fixed cylinder 9 extends into the corresponding water outlet 3.

[0038] In the actual operation of the present invention, when the liquid passes through the fixed cylinder 9 from bottom to top, the impact force of the liquid will drive the spiral conveying plate 13 to rotate, thereby converting the impact force of the liquid into the rotational force of the spiral conveying plate 13, thereby reducing the impact of the liquid on the water inlet 3 and the second water pipe 7, and avoiding loosening of the connection.

[0039] Furthermore, the top and bottom ends of the fixing cylinder 9 extend into the second water pipe 7 and the water outlet 3 respectively, and the second water pipe 7 and the water outlet 3 are tightly connected together by using the fixing cylinder 9, so as to block and protect the gap at the connection, thereby strengthening the structural strength of the connection, improving the safety of use, and avoiding the problem of separation or liquid leakage between the second water pipe 7 and the water outlet 3.

[0040] An external thread 14 is provided at the upper end of the outer side of the fixing cylinder 9, and the inside of the second water pipe 7 and the external thread 14 are threadedly matched with each other. The second water pipe 7 and the fixing cylinder 9 are connected by threads, which can increase the connection strength between the fixing cylinder 9 and the second water pipe 7 and facilitate disassembly and installation.

[0041] A second flange 15 is fixed to the bottom end of the outer side of the second water pipe 7, and the second flange 15 is connected to the first flange 8. A fastening mechanism is fixed to the outer side of the second water pipe 7, and the fastening mechanism includes two semicircular hoops 23. The two semicircular hoops 23 are relatively combined to form a circle, and the two semicircular hoops 23 are sleeved on the outer side of the second water pipe 7. Connecting plates 24 are fixed at both ends of the two semicircular hoops 23, and fixing bolts 25 are arranged between the two corresponding connecting plates 24.

[0042] In the actual operation of the present invention, the two semicircular hoops 23 can tighten the outer side of the second water pipe 7. At the same time, due to the presence of the fixing tube 9 inside the second water pipe 7, when the two semicircular hoops 23 are tightened, the second water pipe 7 and the fixing tube 9 can be tightened at the same time, reducing the gap between the second water pipe 7 and the fixing tube 9, avoiding liquid overflow and shaking of the second water pipe 7 and the fixing tube 9.

[0043] The filtering mechanism 4 includes an outer cylinder 26, inside which a filter screen cylinder 20 is arranged, a distance is left between the inner wall of the outer cylinder 26 and the outer side of the filter screen cylinder 20, and a plurality of connecting rods 21 are fixed between the inner wall of the outer cylinder 26 and the outer side of the filter screen cylinder 20, and a movable disk 27 is provided on the outer sliding sleeve of the plurality of connecting rods 21.

[0044] The side of the outer cylinder 26 close to the pump body 2 is connected to the discharge port 22, and the discharge port 22 is connected to the inside of the filter cylinder 20. The end of the outer cylinder 26 away from the pump body 2 is connected to the first water pipe 5, and the first water pipe 5 is connected to the inside of the outer cylinder 26.

[0045] In the actual operation of the present invention, liquid can enter from the first water pipe 5, and the liquid will enter the space between the filter mesh cylinder 20 and the outer cylinder 26. The impurities inside the liquid will be intercepted by the filter mesh cylinder 20, and the filtered liquid can enter the interior of the filter mesh cylinder 20, and finally enter the interior of the pump body 2 through the discharge port 22, which can prevent impurities from entering the interior of the pump body 2 and reduce the occurrence of impeller blockage or overload due to impurities.

[0046] A through opening is provided on the outside of the outer cylinder 26, and a side baffle 16 is rotatably connected in the through opening. An auxiliary handle 17 is fixedly connected to one side of the side baffle 16, and a limit plate 18 is provided below the auxiliary handle 17. The limit plate 18 is hinged to the side baffle 16, and a fixing column 19 is provided below the limit plate 18. The fixing column 19 is fixedly connected to the outer cylinder 26, and a limit hole is provided on the limit plate 18 for the fixing column 19 to pass through.

[0047] The filtered impurities will remain between the filter screen cylinder 20 and the outer cylinder 26. After the liquid is transported, by opening the side baffle 16, personnel can clean the impurities between the filter screen cylinder 20 and the outer cylinder 26 for subsequent use.

[0048] The discharge port 22 and the corresponding water inlet 3 are connected by a flange to increase the connection strength. The interior of the pump body 2 is coated with a waterproof and anti-corrosion coating. The bottom ends of the fixed seat 1 and the pump body 2 are fixed with multiple supporting legs, and the bottom ends of the multiple supporting legs are fixed with anti-slip pads to improve the stability of the overall device.

Claims

1. A high-efficiency submersible sewage pump, comprising a fixing base (1) and a pump body (2) arranged on one side of the fixing base (1), characterized in that: The top of the pump body (2) and the side away from the fixed seat (1) are both provided with water inlets (3), and the ends of the two water inlets (3) are respectively connected to a buffer mechanism (6) and a filter mechanism (4); The buffer mechanism (6) comprises a first flange (8), a fixed cylinder (9) is fixed in the middle of the first flange (8), the top and bottom of the fixed cylinder (9) both extend out of the first flange (8), and a support plate (10) is fixed between the bottom and the middle of the fixed cylinder (9), both support plates (10) are provided with a through groove (11) for water flow to pass through, a rotating shaft (12) is rotatably connected between the middle parts of the two support plates (10), and a spiral conveying sheet (13) is fixed on the outer side of the rotating shaft (12); The top end of the fixed cylinder (9) is connected to the second water pipe (7), the top end of the fixed cylinder (9) extends into the interior of the second water pipe (7), and the bottom end of the fixed cylinder (9) extends into the interior of the corresponding water outlet (3).

2. A high-efficiency submersible sewage pump according to claim 1, characterized in that: An external thread (14) is formed on the upper outer end of the fixing tube (9), and the interior of the second water pipe (7) and the external thread (14) are threadably matched with each other.

3. A high-efficiency submersible sewage pump according to claim 1, characterized in that: A second flange (15) is fixed to the bottom end of the outer side of the second water pipe (7), the second flange (15) is connected to the first flange (8), and a fastening mechanism is fixed to the outer side of the second water pipe (7).

4. A high-efficiency submersible sewage pump according to claim 1, characterized in that: The filtering mechanism (4) comprises an outer cylinder (26), a filter screen cylinder (20) is arranged inside the outer cylinder (26), a spacing is left between the inner wall of the outer cylinder (26) and the outer side of the filter screen cylinder (20), and a plurality of connecting rods (21) are fixed between the inner wall of the outer cylinder (26) and the outer side of the filter screen cylinder (20), and a movable disk (27) is provided on the outer sliding sleeves of the plurality of connecting rods (21).

5. A high-efficiency submersible sewage pump according to claim 4, characterized in that: The side of the outer cylinder (26) close to the pump body (2) is connected to a discharge port (22), and the discharge port (22) is communicated with the interior of the filter cylinder (20). The end of the outer cylinder (26) away from the pump body (2) is connected to a first water pipe (5), and the first water pipe (5) is communicated with the interior of the outer cylinder (26).

6. A high-efficiency submersible sewage pump according to claim 1, characterized in that: The outer side of the outer cylinder (26) is provided with a through opening, in which a side baffle (16) is rotatably connected, one side of the side baffle (16) is fixedly connected to an auxiliary handle (17), a limit plate (18) is provided below the auxiliary handle (17), the limit plate (18) is hinged to the side baffle (16), a fixing column (19) is provided below the limit plate (18), the fixing column (19) is fixedly connected to the outer cylinder (26), and a limit hole for the fixing column (19) to pass through is provided on the limit plate (18).

7. A high-efficiency submersible sewage pump according to claim 3, characterized in that: The fastening mechanism comprises two semicircular hoops (23), the two semicircular hoops (23) are relatively combined to form a circle, and the two semicircular hoops (23) are sleeved on the outside of the second water pipe (7), and connecting plates (24) are fixed at both ends of the two semicircular hoops (23), and a fixing bolt (25) is arranged between the two corresponding connecting plates (24).

8. A high-efficiency submersible sewage pump according to claim 1, characterized in that: A drive shaft is rotatably connected inside the fixed seat (1), one end of the drive shaft extends into the interior of the pump body (2), an impeller is fixedly connected to the outside of the extended end of the drive shaft, and the impeller is rotatably connected to the interior of the pump body (2).

9. A high-efficiency submersible sewage pump according to claim 5, characterized in that: The discharge port (22) and the corresponding water inlet (3) are connected via a flange, and the interior of the pump body (2) is coated with a waterproof and anti-corrosion coating.

10. A high-efficiency submersible sewage pump according to claim 1, characterized in that: A plurality of supporting legs are fixed to the bottom ends of the fixing seat (1) and the pump body (2), and anti-slip pads are fixed to the bottom ends of the plurality of supporting legs.

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