Submersible sewage pump with anti-blocking mechanism

Abstract

The utility model relates to the field of submersible sewage pumps, in particular to a submersible sewage pump with an anti-blocking mechanism, which comprises a pump head used for providing certain protection capability for an internal motor, and a butt joint block arranged at the bottom of the pump head and used for butt joint installation with a lower shell. The submersible sewage pump is provided with the linkage rod, the supporting base plate, the water inlet, the spiral scraper, the separation filter screen, the fixing rod and the forward and reverse smashing cutter head, when the submersible sewage pump is used for discharging sewage, the supporting base plate and the water inlet can prevent large impurities at the bottom of a sewage pool from directly entering the pump base, so that the submersible sewage pump is blocked, and the service life of the submersible sewage pump is prolonged. Then small impurities enter the pump seat along with the sewage, and encounter the fixed rod to drive the two groups of forward and reverse crushing cutter heads to rotate, so that the small impurities are further crushed and crushed, the internal impurity accumulation is reduced, and then the non-crushed impurities can be secondarily filtered and intercepted by the separation filter screens on the forward and reverse crushing cutter heads.

Description

Technical Field

[0001] The utility model relates to the field of submersible sewage pumps, in particular to a submersible sewage pump with an anti-blocking mechanism. Background Art

[0002] Submersible sewage pump is a kind of pump equipment specially used to pump wastewater, sewage, sludge and other liquids from low-lying areas such as ponds, sedimentation tanks, sewers, basements, etc. to high or distant places for discharge. Unlike traditional water pumps, submersible sewage pumps are designed to work completely immersed in liquids. Their special structure and working principle enable them to play an important role in sewage treatment, industrial production, municipal facilities and construction. Submersible sewage pumps are usually composed of motors, pump bodies, impellers, sealing devices, cables, etc. The motors and pump bodies are often closely combined to form an overall submersible design, so that the pump can work directly immersed in liquids.

[0003] After searching, a submersible sewage pump with a publication number of CN211500980U is disclosed, which specifically discloses a submersible sewage pump, including a submersible sewage pump body, a water inlet at the bottom of the submersible sewage pump body passes through a supporting circular plate, the inner cavity of the water inlet is provided with a filter mechanism, the upper plate surface of the supporting circular plate is provided with an annular guardrail, the outer wall of the submersible sewage pump body is fixedly provided with an annular buckle plate, and its inner wall is fixedly connected to the outer wall side of the annular guardrail by a stabilizing mechanism on both sides, and a plurality of outwardly inclined support rods are fixedly connected to the bottom edge of the supporting circular plate. The utility model provides a submersible sewage pump, which enables the submersible sewage pump to be fixed horizontally and vertically on the ground, ensuring that the submersible sewage pump always remains in a vertical state during operation, avoiding the influence of the sewage discharge effect due to the tilting and overturning of the submersible sewage pump, and preventing large volumes of debris from being drawn into the pump body and damaging the pump body, and the filter can be easily disassembled for cleaning to prevent dirt from clogging the filter and affecting the sewage discharge efficiency, and the operation is simple.

[0004] During the use of the existing submersible sewage pump, in addition to the sewage at the bottom of the sewage pool, there are also dirt and impurities of various sizes. These impurities will clog the internal impeller when the submersible sewage pump is in use, causing internal failure of the submersible sewage pump. If the submersible sewage pump lacks an anti-clogging mechanism, it cannot be used for a long time. In the above-mentioned comparative case, only the filter is relied on to intercept large impurities, and other anti-clogging measures are lacking. After long-term use, small impurities that pass through the filter are accumulated inside the submersible sewage pump, which will also cause internal failure of the submersible sewage pump, thereby preventing long-term use and increasing maintenance costs.

[0005] Therefore, it is necessary to invent a submersible sewage pump with an anti-clogging mechanism to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a submersible sewage pump with an anti-clogging mechanism, which reduces the faults caused by the accumulation of large and small impurities in the submersible sewage pump during the pumping process through a linkage rod, a supporting chassis, a water inlet, a spiral scraper, a partition filter, a fixed rod and a forward and reverse crushing blade disc, adds an anti-clogging structure to the submersible sewage pump, ensures that the device can operate for a long time, avoids the cumbersome operation of re-cleaning and restarting after running for a period of time because the partition filter is blocked, and also reduces the maintenance cost of the submersible sewage pump. The utility model solves the problem that in the use of the submersible sewage pump in the prior art, there are dirt and impurities of different sizes at the bottom of the sewage pool in addition to the sewage. These impurities will clog the internal impeller when the submersible sewage pump is used, causing internal faults of the submersible sewage pump. If the submersible sewage pump lacks an anti-clogging mechanism, it cannot be used for a long time. In the above-mentioned comparative case, only the filter is relied on to intercept large impurities, and other anti-clogging means are lacking. After long-term use, small impurities that pass through the filter are accumulated in the submersible sewage pump, which will also cause internal faults of the submersible sewage pump, thereby preventing long-term use and increasing the maintenance cost.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a submersible sewage pump with an anti-blocking mechanism, comprising a pump head, which is used to provide a certain degree of protection for the internal motor,

[0008] A docking block is arranged at the bottom of the pump head and is used for docking and installation with the lower shell, and a submersible motor is arranged inside the pump head, the output end of the submersible motor is fixedly connected with a connecting rod, one end of the connecting rod is fixedly installed with a rotating impeller, and the bottom of the rotating impeller is fixedly installed with a linkage rod;

[0009] The pump body is arranged below the pump head and is used to carry the internal rotating impeller, and a pump seat is fixedly installed at the bottom of the pump body, a supporting chassis is fixedly installed at the bottom of the pump seat, and a water inlet is opened on the outside of the supporting chassis;

[0010] A spiral scraper is arranged on the outside of the linkage rod and is used to rotate with the linkage rod. A fixing bolt passes through the outside of the pump seat, one end of the fixing bolt is movably connected to a separating filter, a fixing rod is arranged at the bottom of the linkage rod, and a forward and reverse crushing blade is fixedly installed on the outside of the fixing rod.

[0011] Preferably, the rotating impeller is movably connected to the pump body, and the center lines of the connecting rod and the linkage rod coincide with each other.

[0012] Preferably, an embedded groove is provided on the top of the pump body, and a leak-proof sealing ring is fixedly installed inside the embedded groove.

[0013] Preferably, an annular groove is provided inside the pump body, a shaft sealing sleeve is provided inside the annular groove, and a sewage discharge pipe is fixedly installed outside the pump body.

[0014] Preferably, the partition filter is threadedly connected to the pump seat, and the fixing bolts are distributed at equal intervals on the partition filter.

[0015] Preferably, the linkage rod is fixedly connected to the fixed rod, and the fixed rod and the forward and reverse crushing cutter discs are vertically distributed.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] 1. The utility model is provided with a linkage rod, a supporting chassis, a water inlet, a spiral scraper, a separating filter, a fixing rod and a forward and reverse crushing blade disc. When the submersible sewage pump is used to discharge sewage, the supporting chassis and the water inlet can prevent large impurities at the bottom of the sewage pool from directly entering the pump seat, thereby causing the submersible sewage pump to be blocked. Then, small impurities follow the sewage into the pump seat, encounter the fixing rod to drive the two sets of forward and reverse crushing blade discs to rotate, and further crush the small impurities, thereby reducing the accumulation of internal impurities. Then, in the forward and reverse crushing The separation filter on the blade disc can perform secondary filtration and interception of uncrushed impurities, and the spiral scraper is affected by the rotation of the linkage rod and fits on the separation filter to clean the separation filter blocked by impurities. This reduces the failure caused by the accumulation of large and small impurities inside the submersible sewage pump during the pumping process, adds an anti-clogging structure to the submersible sewage pump, ensures that the device can operate for a long time, avoids the cumbersome operation of re-cleaning and restarting due to the clogging of the separation filter after running for a period of time, and also reduces the maintenance cost of the submersible sewage pump;

[0018] 2. The utility model is provided with a pump head, a docking block, a pump body, an embedded groove, a leak-proof sealing ring, an annular groove and a shaft sealing sleeve. When the submersible sewage pump is used to discharge sewage, the pump head is docked and installed with the embedded groove of the pump body through the docking block, thereby enhancing the sealing of the submersible sewage pump to the internal submersible motor. Then, the annular groove and the shaft sealing sleeve block and seal the sewage overflowing from the rotating impeller to the top of the pump body without hindering the normal rotation of the connecting rod and the linkage rod, thereby ensuring that the submersible motor inside the pump head is in normal operation and reducing the probability of water ingress. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the rotary impeller structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the leak-proof sealing ring structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the spiral scraper structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure of the forward and reverse crushing cutter disc of the utility model.

[0025] Description of reference numerals:

[0026] 1. Pump head; 2. Docking block; 3. Submersible motor; 4. Connecting rod; 5. Rotating impeller; 6. Linkage rod; 7. Pump body; 8. Embedded groove; 9. Leak-proof sealing ring; 10. Annular groove; 11. Shaft sealing sleeve; 12. Sewage pipe; 13. Pump seat; 14. Support chassis; 15. Water inlet; 16. Spiral scraper; 17. Fixing bolt; 18. Separation filter; 19. Fixing rod; 20. Forward and reverse crushing blade. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] The utility model provides Figure 1-5 A submersible sewage pump with an anti-clogging mechanism shown in the figure comprises a pump head 1, which is used to provide a certain degree of protection for the internal motor.

[0029] The docking block 2 is arranged at the bottom of the pump head 1 and is used for docking and installation with the lower shell. A submersible motor 3 is arranged inside the pump head 1. A connecting rod 4 is fixedly connected to the output end of the submersible motor 3. A rotating impeller 5 is fixedly installed at one end of the connecting rod 4. A linkage rod 6 is fixedly installed at the bottom of the rotating impeller 5.

[0030] The pump body 7 is arranged below the pump head 1 and is used to carry the internal rotating impeller 5. A pump seat 13 is fixedly installed at the bottom of the pump body 7. A supporting chassis 14 is fixedly installed at the bottom of the pump seat 13. A water inlet 15 is opened on the outside of the supporting chassis 14.

[0031] A spiral scraper 16 is arranged on the outside of the linkage rod 6 and is used to rotate with the linkage rod 6. A fixing bolt 17 is passed through the outside of the pump seat 13. One end of the fixing bolt 17 is movably connected to a separation filter 18. A fixing rod 19 is arranged at the bottom of the linkage rod 6. A forward and reverse crushing blade disc 20 is fixedly installed on the outside of the fixing rod 19. Small pieces of impurities enter the pump seat 13 along with the sewage. When they encounter the fixing rod 19, the two sets of forward and reverse crushing blade discs 20 are driven to rotate, and the small pieces of impurities are further crushed and stirred to reduce the accumulation of internal impurities. Then, the separation filter 18 on the forward and reverse crushing blade discs 20 can perform secondary filtering and interception of uncrushed impurities. The spiral scraper 16 is affected by the rotation of the linkage rod 6 and fits on the separation filter 18 to clean the separation filter 18 blocked by impurities.

[0032] like Figure 1 , Figure 2 and Figure 3 As shown, the rotating impeller 5 is movably connected to the pump body 7, and the center lines of the connecting rod 4 and the linkage rod 6 coincide with each other. Through the rotation of the rotating impeller 5, centrifugal force is generated for the submersible sewage pump to adsorb sewage and extract the sewage from the bottom of the pool for discharge. An embedded groove 8 is provided on the top of the pump body 7, and a leak-proof sealing ring 9 is fixedly installed inside the embedded groove 8. The pump head 1 is docked and installed with the embedded groove 8 of the pump body 7 through the docking block 2, which strengthens the sealing of the submersible sewage pump to the internal submersible motor 3. An annular groove 10 is provided inside the pump body 7, and a shaft sealing sleeve 11 is provided inside the annular groove 10. A sewage pipe 12 is fixedly installed outside the pump body 7. The annular groove 10 and the shaft sealing sleeve 11 block and seal the sewage overflowing from the rotating impeller 5 to the top of the pump body 7 without hindering the normal rotation of the connecting rod 4 and the linkage rod 6.

[0033] like Figure 1 , Figure 4 and Figure 5 As shown, the separation filter 18 is threadedly connected to the pump seat 13, and the fixing bolts 17 are evenly spaced on the separation filter 18. The separation filter 18 on the forward and reverse crushing blade discs 20 can perform secondary filtering and interception on the uncrushed impurities. The linkage rod 6 is fixedly connected to the fixing rod 19, and the fixing rod 19 and the forward and reverse crushing blade discs 20 are vertically distributed. Small pieces of impurities enter the pump seat 13 along with the sewage, and encounter the fixing rod 19, which drives the two sets of forward and reverse crushing blade discs 20 to rotate, thereby further crushing the small pieces of impurities.

[0034] The working principle of the utility model is as follows: firstly, the external power supply is turned on, and the sewage pipe 12 of the submersible sewage pump is connected with the external pipe, and then the submersible sewage pump is sunk to the bottom of the pool. Since the pump head 1 is docked and installed with the embedded groove 8 of the pump body 7 through the docking block 2, the sealing performance of the submersible sewage pump to the internal submersible motor 3 is strengthened. Then, the annular groove 10 and the shaft sealing sleeve 11 are inside the pump body 7, which do not hinder the normal rotation of the connecting rod 4 and the linkage rod 6, and block and seal the sewage overflowing from the rotating impeller 5 to the top of the pump body 7, thereby ensuring the normal operation of the submersible motor 3 inside the pump head 1 and reducing the probability of water ingress. After the preparation work is completed, the submersible motor 3 can be started. The submersible motor 3 drives the rotating impeller 5, the linkage rod 6 and the fixed rod 19 at the bottom to operate synchronously through the connecting rod 4. Through the rotation of the rotating impeller 5, centrifugal force is generated for the submersible sewage pump to adsorb sewage. Then, when the submersible sewage pump performs sewage discharge work, the supporting chassis 14 and the water inlet 15 can prevent large impurities at the bottom of the sewage pool from directly entering the pump seat 13. The submersible sewage pump is clogged, and then small pieces of impurities enter the pump seat 13 along with the sewage. The fixed rod 19 drives the two sets of positive and negative crushing blade discs 20 to rotate, and the small pieces of impurities are further crushed and stirred to reduce the accumulation of internal impurities. Subsequently, the partition filter 18 on the positive and negative crushing blade discs 20 can perform secondary filtration and interception of the uncrushed impurities, and the spiral scraper 16 is affected by the rotation of the linkage rod 6 and fits on the partition filter 18 to clean the partition filter 18 blocked by impurities. In this way, the failure caused by the accumulation of large and small pieces of impurities inside the submersible sewage pump during the pumping process is reduced, an anti-clogging structure is added to the submersible sewage pump, and the long-term operation of the device is ensured. After passing through the anti-clogging structure, the sewage is discharged to the outside by the sewage pipe 12. Finally, after the discharge of all sewage in the current sewage pool is completed according to the above operation, the switch of the submersible motor 3 is turned off, and the device is maintained daily. If it is not used for a long time, the external power supply can be cut off. In this way, the use process of the submersible sewage pump with an anti-clogging mechanism is completed.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A submersible sewage pump with an anti-clogging mechanism, characterized in that: include The pump head (1) is used to provide a certain degree of protection for the internal motor. A docking block (2) is arranged at the bottom of the pump head (1) and is used for docking with the housing below. A submersible motor (3) is arranged inside the pump head (1). The output end of the submersible motor (3) is fixedly connected to a connecting rod (4). A rotating impeller (5) is fixedly installed at one end of the connecting rod (4). A linkage rod (6) is fixedly installed at the bottom of the rotating impeller (5). A pump body (7) is arranged below the pump head (1) and is used to carry the internal rotating impeller (5), and a pump seat (13) is fixedly installed at the bottom of the pump body (7), a supporting chassis (14) is fixedly installed at the bottom of the pump seat (13), and a water inlet (15) is opened on the outside of the supporting chassis (14); A spiral scraper (16) is arranged outside the linkage rod (6) and is used to rotate with the linkage rod (6). A fixing bolt (17) passes through the outside of the pump seat (13). One end of the fixing bolt (17) is movably connected to a separation filter (18). A fixing rod (19) is arranged at the bottom of the linkage rod (6). A forward and reverse crushing blade disc (20) is fixedly installed outside the fixing rod (19).

2. A submersible sewage pump with an anti-clogging mechanism according to claim 1, characterized in that: The rotating impeller (5) is movably connected to the pump body (7), and the center lines of the connecting rod (4) and the linkage rod (6) coincide with each other.

3. A submersible sewage pump with an anti-clogging mechanism according to claim 1, characterized in that: An embedded groove (8) is provided on the top of the pump body (7), and a leak-proof sealing ring (9) is fixedly installed inside the embedded groove (8).

4. A submersible sewage pump with an anti-clogging mechanism according to claim 1, characterized in that: An annular groove (10) is provided inside the pump body (7), a shaft sealing sleeve (11) is provided inside the annular groove (10), and a sewage discharge pipe (12) is fixedly installed outside the pump body (7).

5. A submersible sewage pump with an anti-clogging mechanism according to claim 1, characterized in that: The separation filter screen (18) is threadedly connected to the pump seat (13), and the fixing bolts (17) are distributed at equal intervals on the separation filter screen (18).

6. A submersible sewage pump with an anti-clogging mechanism according to claim 1, characterized in that: The linkage rod (6) is fixedly connected to the fixed rod (19), and the fixed rod (19) and the forward and reverse crushing blade discs (20) are vertically distributed.

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