Novel submersible pump
By installing protective devices and support structures on the outside of the submersible pump, the problem of collision damage to the submersible pump in deep wells or deep water is solved, improving its durability and reliability in harsh environments, and making it suitable for mine drainage and river pumping.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG OULONG PUMP
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-15
AI Technical Summary
Existing submersible pumps are prone to collisions with well walls or objects when lowered into deep wells or deep water areas, resulting in damage and affecting their service life.
A protective device is installed on the outside of the submersible pump body, including a honeycomb cylindrical protective net and a support device. The support device consists of a buffer block, a T-shaped support, and a compression spring, which provides buffer protection.
It improves the durability and reliability of submersible pumps under harsh working conditions, prevents collision damage, and is suitable for high-load scenarios such as mine drainage and river pumping.
Smart Images

Figure CN224245114U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pumps, and relates to a submersible pump, and particularly to a novel submersible pump. Background Technology
[0002] Submersible pumps are important equipment for deep well water extraction. Most existing submersible pumps do not have anti-collision structures. When the submersible pump is lowered into a deep well or deep water area for operation, it is easy to collide with the inner wall of the deep well or with objects underwater, which will damage the submersible pump and seriously affect its service life. Summary of the Invention
[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a novel submersible pump to solve these issues.
[0004] The purpose of this utility model can be achieved through the following technical solution: A new type of submersible pump, including a pump body, characterized in that a protective device is sleeved on the outside of the pump body, at least three support devices for buffering impact force are provided at the lower end of the pump body, and a positioning part for the protective device to abut and position itself at the lower end of the pump body;
[0005] The protective device includes a honeycomb cylindrical protective net and fixing rings fixed at both ends. The lower end of the protective net abuts against the positioning part of the pump body and is fastened with bolts, while the upper end is fixed to the top of the pump body by a pressure cap.
[0006] The support device includes a buffer block extending axially at the lower end of the pump body, a movable cavity inside the buffer block, an axially movable T-shaped support, and a compression spring that provides elastic reset.
[0007] The end of the support member is an arc-shaped structure, with its front end inserted into the movable cavity, and it is cushioned and supported by a compression spring.
[0008] In the aforementioned novel submersible pump, the protective net is bolted to the positioning part of the pump body via a lower fixing ring, and the upper fixing ring is pressed and fixed by a pressure cap.
[0009] In the aforementioned novel submersible pump, the T-shaped head of the support member is confined within the movable cavity, while its arc-shaped end protrudes from the bottom of the buffer block.
[0010] In the aforementioned novel submersible pump, the compression spring is located inside the movable cavity, with its two ends abutting against the T-shaped head and the inner wall of the movable cavity, respectively.
[0011] In the aforementioned novel submersible pump, the number of support devices is three, which are evenly distributed around the lower circumference of the pump body.
[0012] In the aforementioned novel submersible pump, the protective net can be made of steel or iron.
[0013] Compared with existing technologies, this new submersible pump uses a protective mesh made of steel / iron in its protective device structure to resist impacts from hard objects. The honeycomb structure also ensures water permeability, preventing debris from accumulating and clogging the inlet. At the same time, with the addition of a support structure, the durability and reliability of the submersible pump can be significantly improved in harsh working conditions such as muddy environments and uneven riverbeds. This gives it efficient buffering and stability, making it suitable for high-load scenarios such as mine drainage and river pumping. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the new submersible pump.
[0015] Figure 2 yes Figure 1 Enlarged sectional view of part A in the middle.
[0016] In the diagram, 1. Pump body; 2. Protective net; 3. Fixing ring; 4. Positioning part; 5. Buffer block; 6. Movable chamber; 7. Support component; 8. Compression spring; 9. Pressure cover. Detailed Implementation
[0017] 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.
[0018] like Figure 1 , Figure 2 As shown, this novel submersible pump includes a pump body 1, with a protective device fitted around the pump body 1. At least three support devices for buffering impact forces are provided at the lower end of the pump body 1. A positioning part 4 is provided at the lower end of the pump body 1 for the protective device to abut and position. The protective device includes a honeycomb cylindrical protective net 2 and fixing rings 3 fixed at both ends. The lower end of the protective net 2 abuts against the positioning part 4 of the pump body 1 and is fastened with bolts. The upper end is fixed to the top of the pump body 1 by a pressure cap 9. The support device includes a buffer block 5 extending axially at the lower end of the pump body 1, a movable cavity 6 inside the buffer block 5, an axially movable T-shaped support member 7, and a compression spring 8 that provides elastic reset. The end of the support member 7 has an arc-shaped structure, and its front end passes into the movable cavity 6 and is buffered and supported by the compression spring 8.
[0019] The protective net 2 in the protective device structure, made of steel / iron, resists impacts from hard objects. The honeycomb structure also ensures water permeability, preventing debris from accumulating and clogging the water inlet. At the same time, with the support structure, the durability and reliability of the submersible pump can be significantly improved in harsh working conditions such as muddy environments and uneven riverbeds, giving it efficient buffering and stability. It is suitable for high-load scenarios such as mine drainage and river pumping.
[0020] The protective net 2 is bolted to the positioning part 4 of the pump body 1 via the lower fixing ring 3, and the upper fixing ring 3 is pressed and fixed by the pressure cap 9. The T-shaped head of the support member 7 is confined within the movable cavity 6, and its arc-shaped end protrudes from the bottom of the buffer block 5. The compression spring 8 is located inside the movable cavity 6, with its two ends abutting against the T-shaped head and the inner wall of the movable cavity 6, respectively. There are three support devices, evenly distributed around the lower circumference of the pump body 1. The protective net 2 can be made of steel or iron.
[0021] Working principle
[0022] A honeycomb cylindrical protective net 2 encloses the pump body 1, reinforced at both ends by fixing rings 3. The lower end abuts against the positioning part 4 of the pump body 1, secured with bolts to prevent displacement. The upper end is pressed against the fixing ring 3 by a pressure cap 9, forming a double-seal protection. This prevents debris (such as gravel and aquatic plants) in the water from directly impacting the pump body, while the honeycomb structure disperses the impact force. A buffer block 5 is fixed to the lower end of the pump body 1, with a built-in movable cavity 6. A T-shaped support 7 has an arc-shaped end that contacts the riverbed / well bottom to adapt to uneven surfaces. Its T-shaped head is confined within the movable cavity 6 and can move axially. Located within the movable cavity 6, its two ends abut against the T-shaped head and the inner wall of the cavity, respectively.
[0023] When the pump body is pressed down, the support component 7 retracts under pressure → the spring is compressed and stores energy → the impact force is absorbed; when unloading, the spring returns to its original position, and the support component 7 returns to its original position. The three support devices are distributed circumferentially to ensure the balance of the pump body.
[0024] 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 substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.
[0025] Although this document uses a considerable amount of technical terms, 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 invention; interpreting them as any additional limitation would contradict the spirit of this invention.
Claims
1. A novel submersible pump, comprising a pump body (1), characterized in that, The pump body (1) is fitted with a protective device on the outside. The pump body (1) has at least three support devices for buffering impact force at the lower end. The pump body (1) has a positioning part (4) for the protective device to be positioned against. The protective device includes a honeycomb cylindrical protective net (2) and a fixing ring (3) fixed at both ends. The lower end of the protective net (2) abuts against the positioning part (4) of the pump body (1) and is fastened by bolts. The upper end is fixed to the top of the pump body (1) by a pressure cap (9). The support device includes a buffer block (5) extending axially at the lower end of the pump body (1), a movable cavity (6) inside the buffer block (5), an axially movable T-shaped support (7), and a compression spring (8) that provides elastic reset. The end of the support member (7) is an arc-shaped structure, and its front end is inserted into the movable cavity (6), and buffer support is achieved by compression spring (8).
2. The novel submersible pump according to claim 1, characterized in that, The protective net (2) is bolted to the positioning part (4) of the pump body (1) through the lower fixing ring (3), and the upper fixing ring (3) is pressed and fixed by the pressure cover (9).
3. The novel submersible pump according to claim 1, characterized in that, The T-shaped head of the support member (7) is confined within the movable cavity (6), and its arc-shaped end is exposed at the bottom of the buffer block (5).
4. A novel submersible pump according to claim 1, characterized in that, The compression spring (8) is located inside the movable cavity (6), with its two ends abutting against the T-shaped head and the inner wall of the movable cavity (6), respectively.
5. A novel submersible pump according to claim 1, characterized in that, The number of the support devices is three, which are evenly distributed around the lower circumference of the pump body (1).
6. A novel submersible pump according to claim 1, characterized in that, The protective net (2) can be made of steel or iron.