Novel submersible pump

Abstract

The utility model provides a novel submersible pump, and belongs to the technical field of water pumps. The problems that after an existing submersible pump stops pumping, a large amount of water in a connecting pipeline loses upward power and immediately flows back into the submersible pump, a motor in the submersible pump rotates reversely, and the submersible pump is damaged are solved. The novel submersible pump comprises a water pump body and a water pump motor, a water outlet part used for discharging water is arranged on the water pump body, a water outlet pipeline used for discharging water is externally connected to the water outlet part, a non-return structure is arranged in the water outlet part and comprises a fixing part, a non-return part and a reset spring, and an installation space is formed in the fixing part; the fixing piece and the non-return piece are respectively provided with a water passing hole, the water passing piece of the non-return piece is located at the lower end of the water passing piece of the fixing piece, a sliding rod is arranged on the fixing piece, the non-return piece is arranged on the sliding rod in a penetrating mode, and the reset spring is arranged between the fixing piece and the non-return piece. The utility model has the advantage of non-return structure.

Description

Technical Field

[0001] This utility model belongs to the field of water pump technology, and specifically relates to a novel submersible pump. Background Technology

[0002] A submersible pump is a water-lifting device that can draw groundwater from deep wells. A complete submersible pump system consists of a control cabinet, submersible cable, water delivery pipe, submersible pump, and submersible motor. It is mainly used in fields such as mine rescue, construction drainage, agricultural irrigation and drainage, industrial water circulation, urban and rural drinking water supply, and even disaster relief.

[0003] The pump body is directly connected to the ground pipe through the outlet joint. Since the submersible pump is located deep underground and the connecting pipe is long, a large amount of water will remain in the pipe during the process of pumping groundwater. The existing submersible pump is not designed with a check valve. After the submersible pump stops pumping, the large amount of water in the connecting pipe loses its upward force and immediately flows back into the submersible pump, causing the motor in the submersible pump to reverse and damage the submersible pump. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a novel submersible pump with a check valve structure.

[0005] The objective of this utility model can be achieved through the following technical solution: A novel submersible pump, comprising a pump body and a pump motor, characterized in that the pump body is provided with a water outlet section for discharging water, the water outlet section is externally connected to a water outlet pipe for discharging water, and a check structure for preventing backflow is provided inside the water outlet section. The check structure includes a fixing member, a check member, and a return spring. The fixing member has an installation space for the check member to move, and the check member is disposed inside the fixing member. Both the fixing member and the check member are provided with water passage holes for water passage. The water passage part of the check member is located at the lower end of the water passage part of the fixing member. The fixing member is provided with a sliding rod, and the check member passes through the sliding rod. The return spring is disposed between the fixing member and the check member, and the check member moves up and down within the fixing member under the action of the return spring.

[0006] In the aforementioned novel submersible pump, a fixing ring is provided on the side end of the fixing component, and the fixing ring and the fixing component are integrally formed. The fixing ring is fixedly installed on the water outlet by fixing bolts, and the water outlet pipe is fixedly installed on the water outlet by fixing bolts.

[0007] In the aforementioned novel submersible pump, the check valve has an H-shaped cross-section, and the sliding rod is fixedly provided with a stop portion for the check valve to abut against.

[0008] Compared with existing technologies, this new submersible pump has a check valve at the outlet to prevent liquid backflow, which could damage the pump and affect its service life. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0011] In the diagram, 1. Water pump body; 2. Water pump motor; 3. Water outlet; 4. Water outlet pipe; 5. Check valve structure; 6. Fixing component; 7. Check valve component; 8. Return spring; 9. Water passage hole; 10. Sliding rod; 11. Abutment part. Detailed Implementation

[0012] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0013] like Figure 1 , Figure 2 As shown, this novel submersible pump includes a pump body 1 and a pump motor 2. The pump body 1 is provided with a water outlet section 3 for discharging water. A water outlet pipe 4 is externally connected to the water outlet section 3 for discharging water. A check structure 5 for preventing backflow is provided inside the water outlet section 3. The check structure 5 includes a fixing member 6, a check member 7, and a return spring 8. The fixing member 6 has an installation space for the check member 7 to move, and the check member 7 is disposed inside the fixing member 6. Both the fixing member 6 and the check member 7 have water passage holes 9 for water passage. The water passage part of the check member 7 is located at the lower end of the water passage part of the fixing member 6. A sliding rod 10 is provided on the fixing member 6, and the check member 7 passes through the sliding rod 10. The return spring 8 is disposed between the fixing member 6 and the check member 7. The check member 7 moves up and down within the fixing member 6 under the action of the return spring 8.

[0014] To elaborate further, when the water pump starts working, liquid enters the pump and flows out from the outlet 3 under the action of the impeller inside the pump. The check valve 7 is pressured by the liquid and moves upward within the fixing member 6. The water passage hole 9 on the check valve 7 corresponds to the water passage hole 9 on the fixing member 6, so that the liquid flows to the outlet pipe 4 and out. When the water pump stops working, the check valve 7 is no longer under pressure, and the return spring 8 rebounds, causing the check valve 7 to move downward and reseal the water passage hole 9 of the fixing member 6, preventing the liquid that has entered the outlet pipe 4 from flowing back and damaging the water pump.

[0015] To elaborate further, a fixing ring is provided on the side end of the fixing member 6, and the fixing ring is integrally formed with the fixing member 6. The fixing ring is fixedly installed on the water outlet 3 by fixing bolts, and the water outlet pipe 4 is fixedly installed on the water outlet 3 by fixing bolts.

[0016] To elaborate further, the cross-section of the check element 7 is H-shaped, and the sliding rod 10 is fixedly provided with abutment part 11 for the check element 7 to abut against.

[0017] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0018] Although this document frequently uses terms such as pump body 1, pump motor 2, outlet 3, outlet pipe 4, check valve 5, fixing component 6, check valve 7, return spring 8, water passage hole 9, sliding rod 10, and abutment 11, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A novel submersible pump, comprising a pump body (1) and a pump motor (2), characterized in that, The water pump body (1) is provided with a water outlet section (3) for discharging water. A water outlet pipe (4) for discharging water is connected to the water outlet section (3). A check structure (5) for preventing backflow is provided inside the water outlet section (3). The check structure (5) includes a fixing member (6), a check element (7), and a return spring (8). The fixing member (6) has an installation space for the check element (7) to move, and the check element (7) is located inside the fixing member (6). Both the fixing member (6) and the check member (7) are provided with water passage holes (9) for water passage. The water passage part of the check member (7) is located at the lower end of the water passage part of the fixing member (6). The fixing member (6) is provided with a sliding rod (10), and the check member (7) passes through the sliding rod (10). The reset spring (8) is provided between the fixing member (6) and the check member (7). The check member (7) moves up and down in the fixing member (6) by the action of the reset spring (8).

2. The novel submersible pump according to claim 1, characterized in that, The fixing ring is provided on the side end of the fixing member (6), and the fixing ring and the fixing member (6) are integrally formed. The fixing ring is fixedly installed on the water outlet (3) by fixing bolts, and the water outlet pipe (4) is fixedly installed on the water outlet (3) by fixing bolts.

3. A novel submersible pump according to claim 1, characterized in that, The cross-section of the check valve (7) is H-shaped, and the sliding rod (10) is fixedly provided with a stop part (11) for the check valve (7) to abut against.

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