Anti-overloading device for sewage lift pump of sewage plant

Abstract

The utility model discloses a sewage plant sewage lift pump anti-overload device which comprises a fixing frame, connecting pipes are symmetrically and fixedly connected to the outer side of the fixing frame, a supporting frame is fixedly connected to the top of the fixing frame, rotating shafts are rotatably connected to the interior of the supporting frame at equal intervals, smashing blades are fixedly connected to the outer sides of the rotating shafts at equal intervals, and a filter plate is installed in the fixing frame. The top of the fixed frame is fixedly connected with a connecting plate; according to the anti-overload device for the sewage lift pump of the sewage plant, the supporting frame, the second motor, the rotating shaft, the first belt and the smashing blades are arranged, so that the function of smashing sundries and the like existing in sewage is achieved, the blocking phenomenon is avoided, and the anti-overload function is achieved; by arranging the filter plate, the first motor, the driving shaft, the second belt, the connecting shaft and the cleaning rod, the function of filtering sewage is achieved, the filter plate can be quickly cleaned, operation is convenient, and use is convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of overload protection devices, specifically an overload protection device for sewage lift pumps in sewage treatment plants. Background Technology

[0002] Wastewater treatment plants are facilities that treat wastewater, removing chemicals, bacteria, viruses, and other substances to produce reusable water or harmless discharge. They employ various methods, including physical, chemical, and biological methods, to purify water and reduce harmful substance levels, thus contributing to environmental cleanliness. Wastewater lift pumps are used in these plants. These pumps are integrated units comprising a pump, motor, casing, and control system, primarily used to lift wastewater from a lower elevation to a higher elevation or transport it to a designated location.

[0003] Existing sewage lift pumps typically lack a sludge crushing mechanism, making them prone to clogging by debris in the sewage. This can cause the impeller to become jammed, leading to overload and increasing the likelihood of pump damage, thus making them inconvenient to use. Therefore, we propose an overload protection device for sewage lift pumps in sewage treatment plants. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an overload protection device for sewage lift pumps in sewage treatment plants. This solves the problem that sewage lift pumps typically lack a structure for crushing sludge, making them prone to clogging by sludge in the sewage during use. This can easily cause the impeller to get stuck, leading to overload and increasing the likelihood of pump damage.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An overload protection device for a sewage lift pump in a sewage treatment plant includes a fixed frame. Connecting pipes are symmetrically fixed to the outer side of the fixed frame. A support frame is fixedly fixed to the top of the fixed frame. A rotating shaft is equidistantly rotatably connected inside the support frame. Crushing blades are equidistantly fixed to the outer side of the rotating shaft. A filter plate is installed inside the fixed frame. A connecting plate is fixedly connected to the top of the fixed frame. A fixed rod is fixedly connected to the bottom of the connecting plate. A connecting shaft is rotatably connected inside the fixed rod. A cleaning rod is fixedly connected to one end of the connecting shaft. A cleaning brush is provided on one side of the cleaning rod. A connecting seat is fixedly connected to the bottom of the fixed frame. A collection frame is slidably connected inside the connecting seat. The rotating shaft drives the crushing blades to rotate, thereby crushing impurities in the sewage. The filter plate filters the sewage. The cleaning brush on the outer side of the cleaning rod cleans the filter plate.

[0007] Preferably, the two rotating shafts are connected by a first belt drive. A second motor is fixedly connected to the top of the support frame. The output end of the second motor is fixedly connected to one of the rotating shafts. The second motor drives one of the rotating shafts to rotate. One of the rotating shafts drives the pulley on the outside of the other rotating shaft to rotate through its outer pulley and the first belt, thereby driving the other rotating shaft to rotate.

[0008] Preferably, a support base is fixedly connected to the top of the connecting plate, and a drive shaft is rotatably connected inside the support base. The connecting shaft is connected to the drive shaft via a second belt. The drive shaft drives the pulley on the outside of the connecting shaft to rotate via its outer pulley and the second belt, thereby driving the connecting shaft to rotate.

[0009] Preferably, a first motor is fixedly connected to the outer side of the support base. The output end of the first motor is fixedly connected to the drive shaft, and the drive shaft is rotated by the first motor.

[0010] Preferably, an electric push rod is fixedly connected to the inner wall of the connecting seat at equal intervals, and a baffle is fixedly connected to the output end of the electric push rod. The baffle is slidably connected to the fixed frame. The electric push rod drives the baffle to move, so that the cleaned impurities can fall into the interior of the collection frame for collection and processing.

[0011] Preferably, a fixing seat is fixedly connected to the outside of the collection frame, a slider is slidably connected inside the fixing seat, an insert is fixedly connected to one side of the slider, and a slot for cooperating with the insert is opened inside the collection frame. The slider drives the insert to move, so that the insert moves into the slot, thereby locking the position of the collection frame.

[0012] Preferably, a connecting rod is fixedly connected to one side of the slider, the connecting rod is slidably connected to the fixed seat, and a spring is sleeved on the outside of the connecting rod and on one side of the slider. The connecting rod drives the slider to move, and the spring can drive the slider to move and reset.

[0013] This utility model provides an overload protection device for sewage lift pumps in sewage treatment plants. Compared with the prior art, it has the following advantages:

[0014] 1. The sewage lift pump overload protection device of this sewage treatment plant, by setting up a support frame, a second motor, a rotating shaft, a first belt and crushing blades, realizes the function of crushing debris in sewage, avoiding blockage and playing the role of overload protection.

[0015] 2. The sewage lift pump overload protection device of this sewage treatment plant, by setting up a filter plate, a first motor, a drive shaft, a second belt, a connecting shaft and a cleaning rod, realizes the function of filtering sewage and can quickly clean the filter plate. It is easy to operate and use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the fixing frame of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the support frame of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the connecting plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the fixing base of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the collection frame of this utility model.

[0022] In the diagram: 1. Fixed frame; 2. Connecting seat; 3. Collection frame; 4. Fixed seat; 5. Connecting plate; 6. First motor; 7. Support seat; 8. Second motor; 9. Support frame; 10. Connecting pipe; 11. Rotating shaft; 12. Electric push rod; 13. Baffle; 14. Filter plate; 15. Fixed rod; 16. First belt; 17. Crushing blade; 18. Drive shaft; 19. Second belt; 20. Connecting shaft; 21. Cleaning rod; 22. Insert block; 23. Slider; 24. Connecting rod; 25. Spring; 26. Slot. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1 to 6 This utility model provides a technical solution:

[0025] The sewage lift pump overload protection device for a sewage treatment plant includes a fixed frame 1. Connecting pipes 10 are symmetrically fixed to the outer side of the fixed frame 1. A support frame 9 is fixedly fixed to the top of the fixed frame 1. Rotating shafts 11 are equidistantly rotatably connected inside the support frame 9. Crushing blades 17 are equidistantly fixed to the outer side of the rotating shaft 11. A filter plate 14 is installed inside the fixed frame 1. A connecting plate 5 is fixedly fixed to the top of the fixed frame 1. A fixing rod 15 is fixedly fixed to the bottom of the connecting plate 5. A connecting shaft 20 is rotatably connected inside the fixing rod 15. A cleaning rod 21 is fixedly connected to one end of the connecting shaft 20. A cleaning brush is provided on one side, and a connecting seat 2 is fixedly connected to the bottom of the fixed frame 1. A collection frame 3 is slidably connected inside the connecting seat 2. In use, the rotating shaft 11 drives the crushing blade 17 to rotate, thereby crushing the impurities in the sewage and avoiding clogging, thus preventing overload. The filter plate 14 can filter the sewage. The cleaning rod 21 is driven to rotate by the connecting shaft 20, thereby cleaning the filter plate 14 with the cleaning brush. The collection frame 3 can collect the impurities generated during the cleaning of the filter plate 14.

[0026] Furthermore, the two rotating shafts 11 are connected by a first belt 16. A second motor 8 is fixedly connected to the top of the support frame 9. The output end of the second motor 8 is fixedly connected to one of the rotating shafts 11. The second motor 8 drives one of the rotating shafts 11 to rotate. One of the rotating shafts 11 drives the pulley on the outside of the other rotating shaft 11 to rotate through its outer pulley and the first belt 16, thereby driving the other rotating shaft 11 to rotate.

[0027] Furthermore, a support base 7 is fixedly connected to the top of the connecting plate 5, and a drive shaft 18 is rotatably connected inside the support base 7. The connecting shaft 20 is connected to the drive shaft 18 via a second belt 19. The drive shaft 18 drives the pulley on the outside of the connecting shaft 20 to rotate via its outer pulley and the second belt 19, thereby driving the connecting shaft 20 to rotate.

[0028] Furthermore, a first motor 6 is fixedly connected to the outer side of the support base 7. The output end of the first motor 6 is fixedly connected to the drive shaft 18, and the drive shaft 18 is driven to rotate by the first motor 6.

[0029] Furthermore, electric push rods 12 are fixedly connected at equal intervals to the inner wall of the connecting seat 2. A baffle 13 is fixedly connected to the output end of the electric push rod 12. The baffle 13 is slidably connected to the fixed frame 1. The electric push rod 12 drives the baffle 13 to move, so that the cleaned impurities can fall into the interior of the collection frame 3 for collection and processing.

[0030] Furthermore, a fixing seat 4 is fixedly connected to the outside of the collection frame 3, and a slider 23 is slidably connected inside the fixing seat 4. An insert 22 is fixedly connected to one side of the slider 23. A slot 26 is opened inside the collection frame 3 to cooperate with the insert 22. The slider 23 drives the insert 22 to move, so that the insert 22 moves into the slot 26, thereby locking the position of the collection frame 3.

[0031] Furthermore, a connecting rod 24 is fixedly connected to one side of the slider 23. The connecting rod 24 is slidably connected to the fixed base 4. A spring 25 is sleeved on the outside of the connecting rod 24 and on one side of the slider 23. The connecting rod 24 drives the slider 23 to move, and the spring 25 can drive the slider 23 to move and reset.

[0032] Working principle:

[0033] In use, the device is installed at the inlet of the sewage lift pump. The second motor 8 is started, which drives one of the rotating shafts 11 to rotate. One rotating shaft 11 drives the pulley on the outer side of another rotating shaft 11 to rotate via its outer pulley and the first belt 16, which in turn drives the other rotating shaft 11 to rotate. The rotating shaft 11 drives the crushing blade 17 to rotate, thereby crushing impurities in the sewage and preventing blockage. This provides overload protection. The filter plate 14 filters the sewage. When the filter plate 14 needs to be cleaned, the first motor 6 is started, which drives the drive shaft 18 to rotate. The drive shaft 18 drives the pulley on the outer side of the connecting shaft 20 via its outer pulley and the second belt 19, which in turn drives the connecting shaft 20 to rotate. The connecting shaft 20 drives the cleaning rod 21 to rotate, thereby cleaning the filter plate 14 with the cleaning brush. The electric push rod 12 is started, which moves the baffle 13, causing the cleaned impurities to fall into the collection frame 3 for collection and processing, making it convenient to use.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An overload protection device for a sewage lift pump in a sewage treatment plant, comprising a fixed frame (1), characterized in that: A connecting pipe (10) is symmetrically fixed to the outside of the fixed frame (1). A support frame (9) is fixedly fixed to the top of the fixed frame (1). A rotating shaft (11) is equidistantly rotatably connected inside the support frame (9). A crushing blade (17) is equidistantly fixed to the outside of the rotating shaft (11). A filter plate (14) is installed inside the fixed frame (1). A connecting plate (5) is fixedly connected to the top of the fixed frame (1). A fixing rod (15) is fixedly connected to the bottom of the connecting plate (5). A connecting shaft (20) is rotatably connected inside the fixing rod (15). A cleaning rod (21) is fixedly connected to one end of the connecting shaft (20). A cleaning brush is provided on one side of the cleaning rod (21). A connecting seat (2) is fixedly connected to the bottom of the fixed frame (1). A collection frame (3) is slidably connected inside the connecting seat (2).

2. The overload protection device for sewage lift pumps in sewage treatment plants according to claim 1, characterized in that: The two rotating shafts (11) are connected by a first belt (16) for transmission. A second motor (8) is fixedly connected to the top of the support frame (9). The output end of the second motor (8) is fixedly connected to one of the rotating shafts (11).

3. The overload protection device for sewage lift pumps in sewage treatment plants according to claim 1, characterized in that: The top of the connecting plate (5) is fixedly connected to a support base (7), and the inside of the support base (7) is rotatably connected to a drive shaft (18). The connecting shaft (20) is connected to the drive shaft (18) via a second belt (19).

4. The overload protection device for sewage lift pumps in sewage treatment plants according to claim 3, characterized in that: The support base (7) is fixedly connected to the outer side of the first motor (6), and the output end of the first motor (6) is fixedly connected to the drive shaft (18).

5. The overload protection device for sewage lift pumps in sewage treatment plants according to claim 1, characterized in that: Electric push rods (12) are fixedly connected at equal intervals to the inner wall of the connecting seat (2). A baffle (13) is fixedly connected to the output end of the electric push rod (12). The baffle (13) is slidably connected to the fixed frame (1).

6. The overload protection device for sewage lift pumps in sewage treatment plants according to claim 1, characterized in that: A fixing seat (4) is fixedly connected to the outside of the collection frame (3), and a slider (23) is slidably connected inside the fixing seat (4). A plug (22) is fixedly connected to one side of the slider (23), and a slot (26) is provided inside the collection frame (3) to cooperate with the plug (22).

7. The overload protection device for sewage lift pumps in sewage treatment plants according to claim 6, characterized in that: A connecting rod (24) is fixedly connected to one side of the slider (23). The connecting rod (24) is slidably connected to the fixed seat (4). A spring (25) is sleeved on the outside of the connecting rod (24) and on one side of the slider (23).

Images