Submersible sewage pump convenient to disassemble

The design of the easy-to-disassemble submersible sewage pump's installation and disassembly mechanism and protective mechanism solves the problem of cumbersome disassembly process, enabling quick assembly and disassembly and preventing the entry of debris, thus improving work efficiency and sealing performance.

CN224260520UActive Publication Date: 2026-05-19HUIZHOU HENGYUAN ENVIRONMENTAL PROTECTION TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU HENGYUAN ENVIRONMENTAL PROTECTION TECH DEV CO LTD
Filing Date
2025-08-26
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In the existing technology, the disassembly process of submersible sewage pumps is cumbersome, resulting in low work efficiency.

Method used

A submersible sewage pump with easy disassembly was designed. Through the combination of installation and disassembly mechanism and protective mechanism, it can be quickly installed and disassembled to prevent debris from entering.

Benefits of technology

It improves disassembly and assembly efficiency, prevents foreign objects from entering, and ensures sealing and leakage prevention after installation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224260520U_ABST
    Figure CN224260520U_ABST
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Abstract

The utility model relates to the technical field of submersible sewage pumps, and provides a detachable submersible sewage pump which comprises a sewage pump body, a mounting opening is formed in the side face of the sewage pump body, a mounting disc is fixedly connected to the circumferential face of the mounting opening, a mounting and dismounting mechanism is arranged in the mounting disc, and the mounting and dismounting mechanism comprises a control shaft. According to the sewage pump mounting and dismounting mechanism, through mutual cooperation of the control shaft, the gear, the mounting plate and other components of the mounting and dismounting mechanism, when a sewage pump needs to be used, a worker inserts a connecting pipe into a mounting opening, and then the sewage pump is mounted on the mounting plate; the grip is rotated to drive the control shaft to rotate, then the gear and the rack are driven to move, and the mounting plate is driven to press the connecting end and seal the joint. And during dismounting, the grip is reversely rotated, the mounting plate is reset, rapid dismounting is facilitated, the effect of rapidly mounting and dismounting the sewage pump is achieved through the design, and the dismounting and mounting efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of submersible sewage pump technology, specifically to a disassembly-type submersible sewage pump. Background Technology

[0002] A submersible sewage pump is a type of pump that can operate normally underwater and is used for the treatment of sewage, sludge, and wastewater. Compared to conventional pumps, the biggest advantage of a submersible sewage pump is its ability to operate completely submerged in liquid, making it ideal for treating sewage containing solid particles, sludge, or other debris.

[0003] The utility model disclosed in CN205446081U is a submersible sewage pump: the base is installed on the bottom surface of the pump body, the impeller is installed on the rotor shaft, the pump cover is installed on the top surface of the pump body, the bottom surface of the oil chamber is installed on the pump cover, a lower mechanical seal is installed between the rotor shaft and the center hole of the pump cover, an upper mechanical seal is installed on the rotor shaft, the inner ring of the lower bearing assembly is installed on the rotor shaft, the outer ring of the lower bearing assembly is installed in the center hole of the oil chamber, the bottom surface of the motor housing is installed on the top surface of the oil chamber, the rotor is fixedly installed on the rotor shaft, the stator is installed on the inner wall of the motor housing, the bearing seat is installed on the top surface of the motor housing, the inner ring of the upper bearing is installed on the rotor shaft, the upper cover is installed on the top surface of the bearing seat, the signal wire sheath is installed in the left mounting hole of the upper cover, the signal wire pressure cap is installed on the top surface of the upper cover, the cable sheath is installed on the cable, the cable sheath is installed in the right mounting hole of the upper cover, and the cable pressure cap is installed on the top surface of the upper cover.

[0004] In the aforementioned application, the cooperation between the pump body and the bearing housing assembly makes it difficult for workers to quickly disassemble and replace the pump body, resulting in a more cumbersome disassembly and replacement process and reduced work efficiency. Therefore, we propose a disassembly-friendly submersible sewage pump. Utility Model Content

[0005] This utility model proposes a disassembly-friendly submersible sewage pump.

[0006] The technical solution of this utility model is as follows: a detachable submersible sewage pump, including a sewage pump, an installation port is provided on the side of the sewage pump, an installation plate is fixedly connected to the circumferential surface of the installation port, and an installation and disassembly mechanism is provided inside the installation plate.

[0007] The installation and dismantling mechanism includes a control shaft that passes through and is rotatably connected to the circumferential surface of the mounting plate. A gear is fixedly connected to the circumferential surface of the control shaft. A rack is slidably connected to the inner wall of the mounting plate. A connecting rod is fixedly connected to the bottom of the rack. A mounting plate is fixedly connected to the end of the connecting rod away from the bottom of the rack. A movable groove is provided inside the mounting plate to facilitate installation and dismantling by the staff.

[0008] A handle is fixedly connected to the top of the control shaft, and an anti-slip block is fixedly connected to the circumferential surface of the handle. The purpose of this is to facilitate the adjustment of the control shaft by the operator.

[0009] A sealing strip is fixedly connected to the side of the mounting plate, and the side of the mounting plate is slidably connected to the inside of the moving groove. The width of the mounting plate is the same as the inner width of the moving groove. The purpose of this is to ensure the sealing after installation and prevent leakage.

[0010] The rack, mounting plate, and sealing strip are provided in two quantities and are symmetrical to each other along the vertical central axis of the mounting plate. The circumferential surface of the gear meshes with the side surface of the rack to ensure that the rotation of the gear can drive the rack to move.

[0011] The sewage pump is equipped with a protective mechanism, which includes a protective box. The protective box is fixedly connected to the side of the mounting plate. A support shaft is rotatably connected inside the protective box. A force-bearing plate is fixedly connected to the circumferential surface of the support shaft. A push plate is fixedly connected to the circumferential surface of the support shaft. A movable column is slidably connected through the interior of the protective box. A protective plate is fixedly connected to one end of the movable column. The purpose of this mechanism is to prevent debris from entering the sewage pump when it is not in use.

[0012] The protective box is fixedly connected to a torsion spring. The end of the torsion spring away from the inside of the protective box is fixedly connected to the circumferential surface of the support shaft. The purpose of this is to ensure that the support shaft can automatically reset and reduce manual intervention.

[0013] A reset spring is fixedly connected inside the protective box. The end of the reset spring away from the inside of the protective box is fixedly connected to the circumferential surface of the moving column. The purpose of this is to ensure that the moving column can automatically reset and reduce manual intervention.

[0014] The side of the force-bearing plate is located on the displacement trajectory of the connecting rod, and one end of the moving column is located on the displacement trajectory of the push plate. The purpose is to ensure that the movement of the connecting rod can push the force-bearing plate, and to ensure that the rotation of the push plate can push the moving column.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] 1. This utility model utilizes the interoperability of components such as the control shaft, gears, and mounting plate of the installation and disassembly mechanism. When the sewage pump is needed, the operator inserts the connecting pipe into the installation port, rotates the handle to drive the control shaft, which in turn drives the gears and rack to move, causing the mounting plate to press against the connection end and seal the connection. For disassembly, rotating the handle in the opposite direction resets the mounting plate, facilitating quick disassembly. This design achieves rapid installation and disassembly of the sewage pump, improving efficiency.

[0017] 2. This utility model utilizes the cooperation between the protective box, anti-slip plate, and return spring components of the protective mechanism. When the handle is rotated in the opposite direction, the moving rod pushes the force plate, causing the support shaft to rotate, which in turn pushes the push plate. The push plate then moves the moving column, causing the protective plate to protect the installation opening and prevent debris from entering. This design achieves the effect of preventing debris from entering the installation opening, preventing the installation opening from becoming blocked, or preventing debris from entering the sewage pump and affecting normal operation.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a structural schematic diagram of the overall three-dimensional appearance of the sewage pump of this utility model;

[0021] Figure 2 This is a three-dimensional cross-sectional structural diagram of the sewage pump of this utility model;

[0022] Figure 3 This is a three-dimensional cross-sectional structural schematic diagram of the protective mechanism of this utility model;

[0023] Figure 4 This utility model Figure 2 A three-dimensional magnified structural diagram of A in the diagram;

[0024] Figure 5 This utility model Figure 3 A three-dimensional magnified structural diagram of B.

[0025] In the diagram: 1. Sewage pump; 2. Mounting port; 3. Mounting plate; 4. Installation and removal mechanism; 41. Control shaft; 42. Gear; 43. Rack; 44. Connecting rod; 45. Mounting plate; 46. Moving groove; 47. Handle; 48. Anti-slip block; 49. Sealing strip; 5. Protective mechanism; 51. Protective box; 52. Support shaft; 53. Force plate; 54. Push plate; 55. Moving column; 56. Protective plate; 57. Torsion spring; 58. Return spring. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1

[0028] like Figures 1-5 As shown, this embodiment proposes a detachable submersible sewage pump, including a sewage pump 1. The sewage pump 1 has an installation port 2 on its side. An installation plate 3 is fixedly connected to the circumferential surface of the installation port 2. An installation and disassembly mechanism 4 is provided inside the installation plate 3.

[0029] The installation and dismantling mechanism 4 includes a control shaft 41, which is rotatably connected to the circumferential surface of the mounting plate 3. A gear 42 is fixedly connected to the circumferential surface of the control shaft 41. A rack 43 is slidably connected to the inner wall of the mounting plate 3. A connecting rod 44 is fixedly connected to the bottom of the rack 43. A mounting plate 45 is fixedly connected to the end of the connecting rod 44 away from the bottom of the rack 43. A moving groove 46 is provided inside the mounting plate 3 to facilitate installation and dismantling by the staff.

[0030] A handle 47 is fixedly connected to the top of the control shaft 41, and an anti-slip block 48 is fixedly connected to the circumferential surface of the handle 47. The purpose of this is to facilitate the adjustment of the control shaft 41 by the operator.

[0031] A sealing strip 49 is fixedly connected to the side of the mounting plate 45. The side of the mounting plate 45 is slidably connected to the inside of the moving groove 46. The width of the mounting plate 45 is the same as the inner width of the moving groove 46. The purpose is to ensure the sealing after installation and prevent leakage.

[0032] There are two racks 43, mounting plate 45 and sealing strip 49, which are symmetrical to each other along the vertical central axis of mounting plate 3. The circumferential surface of gear 42 meshes with the side surface of rack 43. The purpose is to ensure that the rotation of gear 42 can drive rack 43 to move.

[0033] In this embodiment, when the sewage pump 1 is needed, the operator inserts the connecting end of the connecting pipe into the installation port 2, and then rotates the handle 47 stably through the anti-slip block 48. The rotation of the handle 47 drives the control shaft 41 to rotate, and the rotation of the control shaft 41 drives the gear 42 to rotate. Through the meshing of the gear 42 and the rack 43, the rotation of the gear 42 drives the rack 43 to move. The movement of the rack 43 drives the mounting plate 45 to move inside the moving groove 46 through the connecting rod 44. The movement of the mounting plate 45 presses the connecting end of the connecting pipe, so that the connecting end is tightly installed inside the installation port 2. At the same time, the sealing strip 49 seals the connection. When it is necessary to disassemble the connecting pipe inside the installation port 2, the operator twists the handle 47 in the opposite direction to reset the mounting plate 45, that is, to quickly disassemble.

[0034] Example 2

[0035] like Figures 1-5As shown, based on the same concept as Embodiment 1 above, this embodiment also proposes that the sewage pump 1 is provided with a protective mechanism 5 inside. The protective mechanism 5 includes a protective box 51, which is fixedly connected to the side of the mounting plate 3. A support shaft 52 is rotatably connected inside the protective box 51. A force-bearing plate 53 is fixedly connected to the circumferential surface of the support shaft 52. A push plate 54 is fixedly connected to the circumferential surface of the support shaft 52. A movable column 55 is slidably connected through the inside of the protective box 51. A protective plate 56 is fixedly connected to one end of the movable column 55. The purpose is to prevent debris from entering the sewage pump 1 when it is not in use.

[0036] A torsion spring 57 is fixedly connected inside the protective box 51. One end of the torsion spring 57 away from the inside of the protective box 51 is fixedly connected to the circumferential surface of the support shaft 52. The purpose is to ensure that the support shaft 52 can automatically reset and reduce manual intervention.

[0037] A reset spring 58 is fixedly connected inside the protective box 51. One end of the reset spring 58 away from the inside of the protective box 51 is fixedly connected to the circumferential surface of the moving column 55. The purpose is to ensure that the moving column 55 can automatically reset and reduce manual intervention.

[0038] The side of the force plate 53 is located on the displacement trajectory of the connecting rod 44, and one end of the moving column 55 is located on the displacement trajectory of the push plate 54. The purpose is to ensure that the movement of the connecting rod 44 can push the force plate 53, and to ensure that the rotation of the push plate 54 can push the moving column 55.

[0039] In this embodiment, when the handle 47 is rotated in the opposite direction to disassemble the connecting pipe, the connecting rod 44 moves to push the force plate 53. The force plate 53 rotates through the support shaft 52, and the rotation of the support shaft 52 drives the push plate 54 to rotate. During the rotation of the push plate 54, it pushes the moving column 55. The movement of the moving column 55 drives the protective plate 56 to move. The movement of the protective plate 56 protects the inside of the mounting port 2 and prevents foreign objects from entering the inside of the mounting port 2. When the installation and disassembly mechanism 4 is working, the support shaft 52 is automatically reset by the torsion spring 57, which in turn causes the moving column 55 to be automatically reset by the reset spring 58, thus releasing the protection.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A disassembly-type submersible sewage pump, characterized in that, Includes a sewage pump (1), the sewage pump (1) has an installation port (2) on its side, the installation port (2) is fixedly connected to the circumferential surface of the installation port (2), and the installation plate (3) is provided with an installation and removal mechanism (4) inside the installation plate (3). The installation and removal mechanism (4) includes a control shaft (41), which is rotatably connected to the circumferential surface of the mounting plate (3). A gear (42) is fixedly connected to the circumferential surface of the control shaft (41). A rack (43) is slidably connected to the inner wall of the mounting plate (3). A connecting rod (44) is fixedly connected to the bottom of the rack (43). A mounting plate (45) is fixedly connected to one end of the connecting rod (44) away from the bottom of the rack (43). A moving groove (46) is provided inside the mounting plate (3).

2. The easily disassembled submersible sewage pump according to claim 1, characterized in that, A handle (47) is fixedly connected to the top end of the control shaft (41), and an anti-slip block (48) is fixedly connected to the circumferential surface of the handle (47).

3. The easily disassembled submersible sewage pump according to claim 2, characterized in that, A sealing strip (49) is fixedly connected to the side of the mounting plate (45). The side of the mounting plate (45) is slidably connected to the inside of the moving groove (46). The width of the mounting plate (45) is the same as the inner width of the moving groove (46).

4. A disassembly-type submersible sewage pump according to claim 3, characterized in that, The rack (43), mounting plate (45) and sealing strip (49) are provided in two quantities and are symmetrical to each other along the vertical central axis of the mounting plate (3). The circumferential surface of the gear (42) meshes with the side surface of the rack (43).

5. A disassembly-type submersible sewage pump according to claim 4, characterized in that, The sewage pump (1) is equipped with a protective mechanism (5), which includes a protective box (51). The protective box (51) is fixedly connected to the side of the mounting plate (3). A support shaft (52) is rotatably connected inside the protective box (51). A force-bearing plate (53) is fixedly connected to the circumferential surface of the support shaft (52). A push plate (54) is fixedly connected to the circumferential surface of the support shaft (52). A movable column (55) is slidably connected through the protective box (51). A protective plate (56) is fixedly connected to one end of the movable column (55).

6. A disassembly-type submersible sewage pump according to claim 5, characterized in that, A torsion spring (57) is fixedly connected inside the protective box (51), and one end of the torsion spring (57) away from the inside of the protective box (51) is fixedly connected to the circumferential surface of the support shaft (52).

7. A disassembleable submersible sewage pump according to claim 6, characterized in that, A return spring (58) is fixedly connected inside the protective box (51), and one end of the return spring (58) away from the inside of the protective box (51) is fixedly connected to the circumferential surface of the moving column (55).

8. A portable submersible sewage pump according to claim 7, characterized in that, The side of the force plate (53) is located on the displacement trajectory of the connecting rod (44), and one end of the moving column (55) is located on the displacement trajectory of the push plate (54).