An anti-clogging device for the inlet of an automatic coupling submersible pump

Abstract

This anti-clogging device belongs to the technical field of submersible pump auxiliary equipment, specifically an anti-clogging device for the inlet of an automatically coupled submersible pump. Its features include a support frame, a filter screen, a connecting pipe, a clamp, connecting bolts, and nuts. The support frame is a cage-like structure with a circular opening at the top. The connecting pipe is welded to the opening, and the connecting pipe connects to the submersible pump inlet through the clamp, connecting bolts, and nuts. A filter screen covers the outside of the support frame. This anti-clogging device for the inlet of an automatically coupled submersible pump can prevent large particles and entangled materials from entering the pump body and causing pump malfunctions without affecting pump performance, thus improving pump lifespan and reducing maintenance frequency.

Description

Technical Field

[0001] This utility model belongs to the technical field of submersible pump auxiliary equipment, and relates to an anti-clogging device, specifically an anti-clogging device for the inlet of an automatic coupling submersible pump. Background Technology

[0002] Automatic coupling submersible pumps are widely used in places requiring continuous and stable drainage, such as subways, civil defense systems, and urban sewage treatment plants, due to their ease of inspection and maintenance. They are typically installed and operate in sump pits. In these applications, the water contains high concentrations of sewage and silt, as well as small amounts of stones and entangled materials such as ropes and fibers.

[0003] However, existing automatic coupling submersible pumps are limited by their structure, and their inlets lack any filtration devices. During operation, stones, large particles of silt, and entangled debris in the water can easily enter the pump body, causing the following problems: at best, it reduces the pump speed and the outflow velocity, affecting drainage efficiency; at worst, it can cause the pump impeller to seize up, leading to motor overload and burnout. This not only increases equipment maintenance costs but may also cause safety accidents due to drainage interruption, such as flooding in subway tunnels or overflowing sewage treatment plant pools.

[0004] To address the aforementioned shortcomings, there is an urgent need for an anti-clogging device that can effectively prevent foreign objects from entering the pump body without affecting its performance, thereby extending the pump's service life and reducing maintenance frequency. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an anti-clogging device for the inlet of an automatic coupling submersible pump that is simple in structure, reduces the failure rate of submersible pumps, ensures the drainage efficiency of submersible pumps, reduces the maintenance cost of submersible pumps, and is easy to implement.

[0006] The technical problem solved by this utility model is achieved through the following technical solution:

[0007] An anti-clogging device for the inlet of an automatic coupling submersible pump is characterized by comprising a support frame, a filter screen, a connecting pipe, a clamp, connecting bolts and nuts. The support frame is a cage-shaped structure with a round opening at the top. A connecting pipe is welded to the round opening. The connecting pipe is connected to the inlet of the submersible pump through the cooperation of the clamp, connecting bolts and nuts. A filter screen is covered on the outside of the support frame.

[0008] Moreover, the supporting frame is a cage-shaped structure welded from stainless steel round bars.

[0009] Furthermore, the filter screen is a stainless steel square-hole mesh with a square hole diameter of 10mm, and the filter screen is connected to the outside of the support frame by welding.

[0010] Furthermore, the connecting tube includes a rubber tube and metal rings disposed at both ends of the rubber tube.

[0011] Moreover, the clamp is composed of two sets of symmetrical semi-circular stainless steel strips, and the connecting bolts and nuts are connected to the two ends of the two sets of semi-circular stainless steel strips. The clamp presses the connecting pipe and the submersible pump inlet together by the tightening action of the connecting bolts and nuts.

[0012] Furthermore, a rubber sealing ring is provided on the inner wall of the connecting tube, and the thickness of the rubber sealing ring is 2-3mm.

[0013] Furthermore, it also includes an auxiliary installation structure, which includes a mounting platform and a magnetic ring. The mounting platform is horizontally arranged on the outer ring of the upper end of the connecting pipe, and a magnetic ring concentric with the connecting pipe is arranged on the mounting platform.

[0014] The advantages and positive effects of this utility model are:

[0015] This anti-clogging device for the inlet of an automatic coupling submersible pump can prevent large particles and entangled objects from entering the pump body and causing pump failure without affecting pump performance, thus improving pump life and reducing pump maintenance frequency.

[0016] This utility model uses a 10mm aperture filter screen to effectively block stones and entangled objects larger than 10mm from entering the pump body, thus preventing pump blockage, impeller jamming, and motor burnout, and solving the core defects of existing submersible pumps.

[0017] Fine mud and sand with a diameter of ≤10mm enter the pump body through the filter screen and are discharged with the water flow. This will not hinder the pump's water suction efficiency, nor will it cause impurities to accumulate at the inlet, ensuring that the pump maintains its original operating parameters.

[0018] This utility model achieves fixation through the cooperation of clamps, connecting bolts, and nuts, without requiring modification to the submersible pump body. The installation steps are simple, and disassembly is convenient during later maintenance, reducing maintenance and time costs.

[0019] Meanwhile, through the design of the auxiliary installation structure, on the one hand, the magnetic ring can be attached to the pump body and then the clamp can be connected, which is convenient for operation; on the other hand, the setting of the magnetic ring also increases the reliability of the connection between this anti-clogging device and the pump body, avoiding the problem of the anti-clogging device separating from the pump body after long-term use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a top view of the present invention (auxiliary installation structure omitted);

[0022] Figure 3 This is a schematic diagram of the usage state of this utility model;

[0023] Figure 4 for Figure 3 The structural diagram of this utility model is omitted.

[0024] Explanation of reference numerals in the attached figures

[0025] 1-Support frame, 2-Nut, 3-Clamping hoop, 4-Connecting pipe, 5-Magnetic ring, 6-Mounting platform, 7-Filter screen, 8-Connecting bolt, 9-Submersible pump, 10-Anti-clogging device, 11-Horizontal end face at the pump body inlet, 12-Inlet. Detailed Implementation

[0026] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0027] An anti-clogging device for the inlet of an automatic coupling submersible pump is innovative in that it includes a support frame 1, a filter screen 7, a connecting pipe 4, a clamp 3, a connecting bolt 8, and a nut 2. The support frame is a cage-shaped structure with a round opening at the top. A connecting pipe is welded to the round opening. The connecting pipe is connected to the inlet of the submersible pump 9 through the cooperation of the clamp, the connecting bolt, and the nut. A filter screen is covered on the outside of the support frame.

[0028] The support frame is a cage-shaped structure welded from stainless steel round bars with a specification of φ5mm. This cage-shaped structure can provide stable support for the filter screen without obstructing the water flow into the pump body.

[0029] The filter screen is a stainless steel square-hole mesh with a hole diameter of 10mm. It is connected to the outside of the support frame by welding. This filter screen allows particles with a diameter ≤10mm (such as fine silt) to pass through, while blocking stones and entangled objects with a diameter >10mm. The filter screen is cut to a suitable shape according to the cage structure and fixed to the outside of the support frame by welding. The welded joints are firm and secure, ensuring that the filter surface fully covers the inlet area.

[0030] The connecting tube includes a rubber tube and metal rings at both ends of the rubber tube. To ensure the tightness and sealing of the connection, a rubber sealing ring with a thickness of 2-3 mm is provided on the inner wall of the rubber tube of the connecting tube.

[0031] The clamp acts on the hose and consists of two sets of symmetrical semi-circular stainless steel strips. The connecting bolts and nuts are connected to the two ends of the two sets of semi-circular stainless steel strips. The clamp presses the connecting pipe and the submersible pump inlet together by the tightening action of the connecting bolts and nuts.

[0032] During the design process, the inner diameter of the hose is matched with the outer diameter of the pump body inlet 12. The metal rings at both ends of the hose are used to connect the support frame and the auxiliary installation structure, respectively. A rubber sealing ring is installed inside the hose, and the gap between it and the pump body inlet is small. Therefore, after tightening, the deformation of the hose is small and will not affect the connection stability with the metal rings at both ends.

[0033] It also includes an auxiliary installation structure, which comprises a mounting platform 6 and a magnetic ring 5. A mounting platform is horizontally positioned on the outer ring of the upper end of the connecting pipe, and a magnetic ring concentric with the connecting pipe is mounted on the mounting platform. In use, the anti-clogging device 10 can first be initially fixed by the magnetic ring adhering to the horizontal end face 11 at the pump body inlet. After initial fixation, the device is then connected using a clamp, facilitating operation. During prolonged use, the clamp connection may inevitably loosen due to water flow impact or collisions with foreign objects. Therefore, the magnetic ring further improves the reliability of the connection.

[0034] Assembly steps of this utility model:

[0035] 1. Fit the cut filter screen to the outer wall of the support frame, and fix the filter screen to the round steel of the support frame by spot welding. The spacing between the weld points should be controlled at 50-80mm to ensure that the filter screen is not loose. Then weld the circular top surface of the filter screen to the top round steel of the support frame to form a complete filter cavity.

[0036] 2. Align the connecting pipe with the center of the top circular opening of the support frame, and perform circumferential welding using argon arc welding. During the welding process, ensure that the interface is coaxial with the support frame, the weld is continuous and free of pores, and guarantee the connection strength and sealing. After welding, grind the weld smooth.

[0037] 3. Weld a mounting platform horizontally to the upper end face of the connecting pipe, and install a magnetic ring on the mounting platform;

[0038] 4. Install a rubber sealing ring inside the connecting pipe.

[0039] Installation steps for this anti-clogging device and submersible pump:

[0040] 1. Clean the surface of the inlet of the automatic coupling submersible pump body to remove dirt and rust, and ensure that the connection surface is clean;

[0041] 2. Align the assembled anti-clogging device with the submersible pump inlet and fit the connecting pipe onto the pump body inlet. At this time, the magnetic ring connects the device to the pump body. Then adjust the position of the device to ensure that the filter screen completely covers the inlet area and does not interfere with other parts of the pump body.

[0042] 3. Take two sets of semi-circular clamps and put them on the connecting pipe hose positions respectively, so that the drill holes at both ends of the clamps are aligned;

[0043] 4. Insert the connecting bolts into the aligned drill holes, put the nuts on the other end of the connecting bolts, and use a wrench to gradually tighten the nuts until the clamp presses the connecting pipe and the pump body tightly and secures them. Shake the device by hand; if there is no obvious looseness, the installation is complete.

[0044] 5. After installation, the submersible pump can be placed into the sump pit in the usual way, the coupling device can be connected to the slide rail, and the pump can be started for trial operation. Check whether the device obstructs the water flow, whether there is any leakage or impurity seepage. After confirming that there are no abnormalities, it can be used normally.

[0045] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. An anti-clogging device for the inlet of an automatically coupled submersible pump, characterized in that: The system includes a support frame, a filter screen, a connecting pipe, a clamp, connecting bolts, and nuts. The support frame is a cage-shaped structure with a round opening at the top. A connecting pipe is welded to the round opening. The connecting pipe is connected to the inlet of the submersible pump through the cooperation of the clamp, connecting bolts, and nuts. A filter screen covers the outside of the support frame.

2. The anti-clogging device for the inlet of an automatic coupling submersible pump according to claim 1, characterized in that: The supporting frame is a cage-shaped structure welded from stainless steel round bars.

3. The anti-clogging device for the inlet of an automatically coupled submersible pump according to claim 1, characterized in that: The filter screen is a stainless steel square hole mesh with a square hole diameter of 10mm. The filter screen is connected to the outside of the support frame by welding.

4. The anti-clogging device for the inlet of an automatically coupled submersible pump according to claim 1, characterized in that: The connecting tube includes a rubber tube and metal rings at both ends of the rubber tube.

5. The anti-clogging device for the inlet of an automatically coupled submersible pump according to claim 1, characterized in that: The clamp consists of two sets of symmetrical semi-circular stainless steel strips. The connecting bolts and nuts are threaded through the two ends of the two sets of semi-circular stainless steel strips. The clamp presses the connecting pipe and the submersible pump inlet together by the tightening action of the connecting bolts and nuts.

6. The anti-clogging device for the inlet of an automatically coupled submersible pump according to claim 4, characterized in that: A rubber sealing ring is provided on the inner wall of the connecting tube, and the thickness of the rubber sealing ring is 2-3mm.

7. The anti-clogging device for the inlet of an automatically coupled submersible pump according to claim 1, characterized in that: It also includes an auxiliary installation structure, which includes a mounting platform and a magnetic ring. The mounting platform is horizontally arranged on the outer ring of the upper end of the connecting pipe, and a magnetic ring concentric with the connecting pipe is arranged on the mounting platform.

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