Submersible pump with replaceable filtering structure
By designing a detachable filter arc plate structure and utilizing the cooperation of locking blocks, springs, and slots, the problem of time-consuming and laborious replacement of existing submersible pump filter covers has been solved, enabling convenient filter cover replacement and maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG BAOWAN ELECTROMECHANICAL CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-04-28
AI Technical Summary
The filter cover of the existing submersible pump is connected by bolts, which makes replacement time-consuming and laborious, and the disassembly time is long.
It adopts a detachable filter arc plate structure, and the filter arc plate can be easily replaced through the cooperation of the locking block, spring and locking groove. The replacement efficiency is improved by the design of the pushing part and sliding frame.
It simplifies the filter cover replacement process, improves replacement efficiency and maintenance convenience, and reduces maintenance costs.
Smart Images

Figure CN224174284U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of submersible pumps, and relates to a submersible pump, and more particularly to a submersible pump with a replaceable filter structure. Background Technology
[0002] Submersible pumps are essential equipment for deep well water extraction. During operation, the entire unit is submerged in water to extract groundwater to the surface. They are suitable for various applications including domestic water supply, mine rescue, industrial cooling, farmland irrigation, seawater lifting, and ship ballast adjustment.
[0003] Existing submersible pumps use a filter cover at the inlet to filter and protect the water flow, preventing large particles such as sand and gravel from entering the pump and causing wear. However, the filter cover is fixed to the submersible pump by bolts to the pump body and motor. This means that replacing a damaged filter cover requires separating the pump body and motor, which is time-consuming and labor-intensive. In addition, the use of bolts further increases the time required for disassembly. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned problems in the prior art by providing a submersible pump that facilitates the replacement of its filter structure.
[0005] This utility model can be achieved through the following technical solution: a submersible pump with a replaceable filter structure, including a motor and a pump body, wherein a water inlet is opened on the pump body, and a mounting bracket is fixed to the water inlet by bolts. The mounting bracket is provided with an extension plate one and an extension plate two, and a sliding frame is provided between the extension plate one and the extension plate two. An installation groove is opened on the sliding frame, and a fixing column is formed between the installation grooves. A locking groove is opened on the fixing column, and a filter arc plate is installed in the installation groove. A locking block is installed in the filter arc plate, and a spring is provided between the locking block and the filter arc plate.
[0006] In the submersible pump with the replaceable filter structure described above, there are two water inlets and four mounting slots.
[0007] In the submersible pump with the replaceable filter structure described above, a screw passes through between the extension plate 2 and the sliding frame.
[0008] In the submersible pump with the replaceable filter structure described above, a pusher extends from the fixed column.
[0009] In the submersible pump with the replaceable filter structure described above, the sliding frame is provided with a slider, the slider is equipped with steel balls, and the extension plate is provided with a groove.
[0010] In the submersible pump with the replaceable filter structure described above, a groove is provided on the filter arc plate, and a filter screen is installed inside the filter arc plate.
[0011] In the submersible pump with the replaceable filter structure described above, a through groove is provided in the fixed column, the through groove is connected to the slot, a sliding rod is installed in the through groove, and a pushing block is provided on the sliding rod.
[0012] In the submersible pump with the replaceable filter structure described above, a pressing rod is connected to the top of the sliding rod, a fixing part is provided on the outside of the pressing rod, a limit block is installed in the fixing part, and limit grooves are formed on the sliding rod and the pressing rod.
[0013] In the submersible pump with the replaceable filter structure described above, a spring is provided between the limiting block and the fixing part.
[0014] Compared with the prior art, the advantages of this utility model are: the original filter cover is divided into multiple filter arc plates, and the plates are installed on the sliding frame through the cooperation of the locking block, spring and locking groove, which makes assembly and replacement convenient; the spare filter arc plate can be moved to the water inlet by sliding the pushing part, which improves the replacement efficiency. Attached Figure Description
[0015] Figure 1 This is a 3D view of a submersible pump with a replaceable filter.
[0016] Figure 2 This is a first cross-sectional view of a submersible pump with a replaceable filter structure.
[0017] Figure 3 This is a second sectional view of a submersible pump with a replaceable filter structure;
[0018] Figure 4 This is a cross-sectional view of the filter arc plate of a submersible pump with a replaceable filter structure.
[0019] Figure 5 This is a 3D view of the sliding rod of a submersible pump with a replaceable filter structure;
[0020] Figure 6 This is a 3D view of the sliding frame of a submersible pump with a replaceable filter structure;
[0021] The components are as follows: 1. Motor; 2. Pump body; 21. Inlet; 3. Bolt; 4. Mounting bracket; 41. Extension plate one; 42. Extension plate two; 43. Slide groove; 5. Sliding frame; 51. Mounting groove; 52. Fixing column; 521. Slot; 522. Through groove; 53. Pushing part; 54. Slider; 55. Steel ball; 56. Fixing part; 561. Limiting block; 562. Spring two; 6. Filter arc plate; 61. Slot; 62. Spring one; 63. Groove; 64. Filter screen; 7. Screw; 8. Sliding rod; 81. Pushing block; 82. Pressing rod; 821. Limiting groove. Detailed Implementation
[0022] 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.
[0023] like Figures 1 to 6 As shown, this utility model can be implemented through the following embodiments: A submersible pump with a replaceable filter structure includes a motor 1 and a pump body 2. The pump body 2 has an inlet 21. A mounting bracket 4 is fixed to the inlet 21 by bolts 3. The mounting bracket 4 is provided with an extension plate 41 and an extension plate 42. A sliding frame 5 is provided between the extension plate 41 and the extension plate 42. An installation groove 51 is provided on the sliding frame 5. A fixing post 52 is formed between the installation grooves 51. A slot 521 is provided on the fixing post 52. A filter arc plate 6 is installed in the installation groove 51. A locking block 61 is installed in the filter arc plate 6. A spring 62 is provided between the locking block 61 and the filter arc plate 6.
[0024] Mounting bracket 4 is used to limit the displacement of sliding bracket 5 by extension plate 1 41 and extension plate 2 42. Filter arc plate 6 is fixed to sliding bracket 5 by the cooperation of locking block 61 and locking groove 521. Spring 1 62 is used to push locking block 61 into locking groove 521 to make locking block 61 stably connected to locking groove 521 and prevent locking block 61 from accidentally disengaging from locking groove 521, causing filter arc plate 6 to disengage from mounting groove 51.
[0025] like Figures 1 to 3 As shown, there are two inlets 21 and four mounting slots 51. The number of mounting slots 51 is twice that of the inlets 21, so that when the filter arc plate 6 that is in the process of filtration needs to be replaced, the filter arc plate 6 can be replaced by rotating the sliding bracket 5, and the replaced filter arc plate 6 can be disassembled and replaced.
[0026] like Figure 3 As shown, a screw 7 passes through the extension plate 42 and the fixed post 52. The screw 7 connects the mounting bracket 4 and the sliding bracket 5, thereby restricting the sliding of the sliding bracket 5 and preventing the sliding bracket 5 from causing the filter arc plate 6 to slide when the submersible pump is working.
[0027] like Figure 1 and Figure 3 As shown, a pushing part 53 extends from the fixed column 52. The pushing part 53 provides a force application point, making it easy for maintenance personnel to push the sliding frame 5 to slide and quickly replace the filter arc plate 6.
[0028] like Figure 2 and Figure 3 As shown, the sliding frame 5 is equipped with a slider 54, on which steel balls 55 are mounted, and the extension plate 42 is provided with a groove 43. The groove 43 is used to guide the slider 54 to move, thereby determining the sliding trajectory of the sliding frame 5; the steel balls 55 are provided to reduce the force required to push the sliding frame 5 through rolling friction, thereby improving maintenance efficiency.
[0029] like Figure 2 and Figure 4 As shown, a groove 63 is provided on the filter arc plate 6, and a filter screen 64 is installed inside the filter arc plate 6. The filter screen 64 installed inside the filter arc plate 6 performs secondary filtration on the water flowing through the through hole 43 on the filter arc plate 6, intercepting solid impurities in the water from entering the pump body 2.
[0030] like Figure 1 , Figure 2 and Figure 6 As shown, a through groove 522 is provided inside the fixed column 52, which connects to the slot 521. A sliding rod 8 is installed in the through groove 522, and a pushing block 81 is provided on the sliding rod 8. The sliding rod 8 slides in the through groove 522, and the pushing block 81 pushes the slot 61 out of the slot 521, thereby allowing maintenance personnel to remove the filter arc plate 6 and improving the efficiency of replacing the filter arc plate 6.
[0031] like Figure 1 , Figure 3 and Figure 5 As shown, a pressing rod 82 is connected to the top of the sliding rod 8. A fixing part 56 is provided on the outside of the pressing rod 82, and a limiting block 561 is installed inside the fixing part 56. Limiting grooves 821 are provided on the sliding rod 8 and the pressing rod 82. The pressing rod 82 is used by maintenance personnel to apply force, thereby driving the sliding rod 8 to move, so that the pushing block 81 on the sliding rod 8 pushes the locking block 61 out of the locking groove 521. A limiting groove 821 is provided on the sliding rod 8 and the pressing rod 82 respectively, so that maintenance personnel can move the sliding rod 8 after moving the limiting block 561, while preventing the pushing block 81 from accidentally pushing the locking block 61 to move, causing the filter arc plate 6 to pop out.
[0032] 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.
[0033] Although this document uses a variety of 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 submersible pump with a replaceable filter structure, comprising a motor (1) and a pump body (2), wherein the pump body (2) has an inlet (21), and a mounting bracket (4) is fixed to the inlet (21) by bolts (3), the mounting bracket (4) is provided with an extension plate one (41) and an extension plate two (42), a sliding frame (5) is provided between the extension plate one (41) and the extension plate two (42), an installation groove (51) is provided on the sliding frame (5), a fixing column (52) is formed between the installation grooves (51), a slot (521) is provided on the fixing column (52), a filter arc plate (6) is installed in the installation groove (51), a locking block (61) is installed in the filter arc plate (6), and a spring (62) is provided between the locking block (61) and the filter arc plate (6).
2. The submersible pump with a replaceable filter structure according to claim 1, characterized in that, There are two water inlets (21) and four mounting slots (51).
3. A submersible pump with a replaceable filter structure according to claim 1, characterized in that, A screw (7) passes through the extension plate (42) and the fixing post (52).
4. A submersible pump with a replaceable filter structure according to claim 1, characterized in that, A pushing part (53) extends from the fixed column (52).
5. A submersible pump with a replaceable filter structure according to claim 1, characterized in that, The sliding frame (5) is provided with a slider (54), and a steel ball (55) is installed on the slider (54). The extension plate (42) is provided with a groove (43).
6. A submersible pump with a replaceable filter structure according to claim 1, characterized in that, The filter arc plate (6) has a groove (63) and a filter screen (64) is installed inside the filter arc plate (6).
7. A submersible pump with a replaceable filter structure according to claim 1, characterized in that, The fixed column (52) has a through groove (522) that connects to the slot (521). A sliding rod (8) is installed in the through groove (522), and a pushing block (81) is provided on the sliding rod (8).
8. A submersible pump with a replaceable filter structure according to claim 7, characterized in that, The top of the sliding rod (8) is connected to a pressing rod (82), and a fixing part (56) is provided on the outside of the pressing rod (82). A limit block (561) is installed in the fixing part (56), and a limit groove (821) is provided on the sliding rod (8) and the pressing rod (82).
9. A submersible pump with a replaceable filter structure according to claim 8, characterized in that, A second spring (562) is provided between the limiting block (561) and the fixing part (56).