Submersible pump with cable sealing structure
By designing plug-in connectors and sealing mechanisms, combined with sealing gaskets, sealing bags, and check valves, the problem of insufficient sealing at the submersible pump connection points is solved, enabling stable operation and safety of the submersible pump in complex underwater environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO QINGQUAN PUMP IND CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-12
AI Technical Summary
The existing submersible pump wiring connection is not properly sealed, which allows water to easily enter, causing short circuits and safety hazards.
The design employs a plug-in connector, combined with a sealing mechanism and protective shell. By using a sealing gasket and sealing bag in conjunction with a one-way valve, a tight physical barrier is formed to prevent moisture intrusion. The connector is secured by a threaded rod and a fixing bracket to ensure the stability and sealing of the circuit connection.
It improves the waterproof sealing effect of submersible pumps in harsh underwater environments, ensures the stability and reliability of circuit connections, solves the safety hazards of existing technologies, reduces production costs, and simplifies the structure.
Smart Images

Figure CN224228888U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of submersible pump technology, and in particular relates to a submersible pump with a cable sealing structure. Background Technology
[0002] Submersible pumps are devices that operate underwater and can lift water to the surface. They are widely used in various fields such as industrial drainage, agricultural irrigation, construction drainage, and domestic sewage discharge. Their unique working method makes them an indispensable piece of equipment in many scenarios. With the continuous development of related industries, higher requirements are being placed on the performance and reliability of submersible pumps.
[0003] However, current submersible pumps still have certain technical limitations, especially in terms of sealing at the connection points. Existing submersible pump connections often lack high sealing performance. This problem allows water to easily enter the connection points during actual use, causing short circuits. Short circuits not only prevent the submersible pump from working properly and affect its efficiency, but may also pose safety hazards and even damage the equipment, resulting in economic losses for users.
[0004] To address these issues, we provide a submersible pump with a cable-sealed structure. Utility Model Content
[0005] The purpose of this utility model is to provide a submersible pump with a cable sealing structure, which solves the problem of the lack of high sealing performance at the wiring point of the submersible pump in the prior art through the cooperation of the wiring mechanism and the sealing mechanism.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.
[0007] This utility model relates to a submersible pump with a cable sealing structure, comprising a submersible pump body, a wiring mechanism on one side of the top of the submersible pump body, a sealing mechanism on the surface of the wiring mechanism, and a water outlet pipe connected to the surface of the submersible pump body; the wiring mechanism includes a first connector, a second connector inserted into one side of the first connector, and a wire fixedly connected to one side of the second connector; the sealing mechanism includes a first protective shell and a second protective shell, the first protective shell being fixed to the top of the submersible pump body, a sealing gasket being provided between the first and second protective shells, the first and second connectors being located within the inner cavities of the first and second protective shells, and receiving grooves being formed on the inner walls of the first and second protective shells, with sealing bags fixedly connected to the inner walls of the receiving grooves, and conduits connected to the surface of the sealing bags, the other end of which is connected to the water outlet pipe, and a one-way valve sleeved on the surface of the conduit, for use in complex underwater operations. In the operating environment, the plug-in design of the first and second terminals provides a convenient and reliable way to connect the circuit. This method is not only simple to operate, easy to install and maintain, but also ensures the stability of the circuit connection. The first and second protective shells work together to protect the wiring area, while the sealing gasket further fills the tiny gaps between the two protective shells, forming a tight physical barrier that can effectively prevent the intrusion of external moisture. The sealing bag is connected to the outlet pipe through a conduit equipped with a one-way valve. When the submersible pump is started, the water flows along the outlet pipe under the action of the pump, and some water enters the sealing bag through the conduit. The sealing bag then expands and tightly squeezes the second terminal, which not only effectively prevents the second terminal from loosening under the impact of water flow, but also prevents water from seeping into the wiring area, greatly improving the waterproof sealing effect and enabling the submersible pump to operate safely and stably in harsh underwater environments.
[0008] The present invention is further configured such that a sealing plate is fixedly sleeved on the surface of the second connector, a sealing groove is provided on one side of the sealing plate, and a sealing ring is fixedly connected to the inner wall of the sealing groove. The sealing plate fixedly sleeved on the surface of the second connector has a sealing groove and a sealing ring. When the sealing plate moves, the sealing ring can make close contact with the first protective shell and the second protective shell, which further improves the sealing effect and prevents water from seeping in from the second connector.
[0009] The present invention is further configured such that a support plate is fixedly connected to the top of the second protective shell, and a threaded rod is movably connected to the surface of the support plate through a bearing. A fixing frame is threadedly connected to the threaded end of the threaded rod, and the wire is located in the inner cavity of the fixing frame. The support plate, threaded rod and fixing frame on the top of the second protective shell are configured such that the user can rotate the threaded rod to drive the fixing frame to move and squeeze the sealing plate, thereby further preventing the second terminal from loosening and playing a role in stabilizing the wiring, ensuring the stability of the wiring when the submersible pump is working.
[0010] The present invention is further configured such that a first connecting plate is fixedly connected to both the front and back of the first protective shell, and a second connecting plate is fixedly connected to both the front and back of the second protective shell. A first bolt is provided through the top of the second connecting plate, and the threaded end of the first bolt extends to the bottom of the first connecting plate and is threadedly connected to a nut. The first protective shell and the second protective shell are connected and fixed by the first connecting plate, the second connecting plate, the first bolt, and the nut. This connection method facilitates disassembly and installation, makes it easy to inspect and maintain the internal wiring mechanism, and also ensures the firmness of the connection between the first protective shell and the second protective shell.
[0011] The present invention is further configured such that a protective net is provided at the bottom of the submersible pump body, and a second bolt is provided through the surface of the submersible pump body. The submersible pump body and the protective net are fixedly connected by the second bolt. The protective net at the bottom of the submersible pump body and the second bolt fixedly connected to the submersible pump body can effectively prevent debris in the water from entering the submersible pump, protect the internal structure of the submersible pump, and extend the service life of the submersible pump.
[0012] The present invention is further provided that a uniformly distributed heat-conducting plate is fixedly connected to the surface of the submersible pump body, and a nameplate is fixedly connected to the bottom front of the submersible pump body.
[0013] The present invention is further configured such that a connecting block is fixedly connected to the bottom of one side of the submersible pump body, a lifting ring is movably connected to the surface of the connecting block, and a handle is fixedly connected to the top of the submersible pump body.
[0014] The present invention has the following beneficial effects.
[0015] 1. This utility model achieves circuit connection by plugging in the first terminal and the second terminal, and the first and second protective shells work together with the sealing gasket to contain and protect it, which improves the safety of the connection point. When the submersible pump starts to work, the water flow it generates is not only used to transport liquid, but is also cleverly used to enhance the sealing performance of the connection point. This not only improves the overall performance of the submersible pump, but also simplifies the structure to a certain extent and reduces the production cost, and has extremely high promotion and application value.
[0016] 2. The first and second terminals of this utility model adopt a plug-in design, which is simple to operate, easy to install and maintain, and can ensure the stability of the circuit connection and reduce the risk of poor contact caused by environmental factors. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0018] Figure 1This is a perspective view of a submersible pump with a cable sealing structure.
[0019] Figure 2 This is a perspective view of the sealing mechanism in a submersible pump with a cable sealing structure.
[0020] Figure 3 This is a schematic diagram showing the opening of the sealing mechanism in a submersible pump with a cable sealing structure.
[0021] Figure 4 This is a three-dimensional view of a sealing plate and its related structures in a submersible pump with a cable sealing structure.
[0022] Figure 5 This is a schematic diagram of the sealing bag and related structural connections in a submersible pump with a cable sealing structure.
[0023] In the attached diagram: 1. Submersible pump body; 2. Wiring mechanism; 3. Sealing mechanism; 4. Water outlet pipe; 201. First connector; 202. Second connector; 203. Wire; 301. First protective shell; 302. Second protective shell; 303. Sealing gasket; 304. Receiving groove; 305. Sealing bag; 306. Conduit; 2021. Sealing plate; 2022. Sealing groove; 2023. Sealing ring; 3021. Support plate; 3022. Threaded rod; 3023. Fixing bracket; 3011. First connecting plate; 3012. Second connecting plate; 3013. First bolt; 101. Protective net; 102. Second bolt; 103. Heat-conducting plate; 104. Nameplate; 105. Connecting block; 106. Lifting ring. Detailed Implementation
[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] Example 1
[0026] Please see Figure 1-5This utility model is a submersible pump with a cable sealing structure, including a submersible pump body 1, a wiring mechanism 2 is provided on one side of the top of the submersible pump body 1, a sealing mechanism 3 is provided on the surface of the wiring mechanism 2, and a water outlet pipe 4 is connected to the surface of the submersible pump body 1; the wiring mechanism 2 includes a first connector 201, a second connector 202 is inserted into one side of the first connector 201, and a wire 203 is fixedly connected to one side of the second connector 202; the sealing mechanism 3 includes a first protective shell 301 and a second protective shell 302, the first protective shell 301 is fixed At the top of the submersible pump body 1, a sealing gasket 303 is provided between the first protective shell 301 and the second protective shell 302. The first terminal 201 and the second terminal 202 are both located in the inner cavity of the first protective shell 301 and the second protective shell 302. The inner walls of the first protective shell 301 and the second protective shell 302 are provided with receiving grooves 304. A sealing bag 305 is fixedly connected to the inner wall of the receiving groove 304. A conduit 306 is connected to the surface of the sealing bag 305. The other end of the conduit 306 is connected to the water outlet pipe 4. A one-way valve is sleeved on the surface of the conduit 306.
[0027] Specifically: In complex underwater working environments, the plug-in design of the first connector 201 and the second connector 202 provides a convenient and reliable method for circuit connection. This method is not only simple to operate, easy to install and maintain, but also ensures the stability of the circuit connection. The first protective shell 301 and the second protective shell 302 work together to protect the wiring area, while the sealing gasket 303 further fills the tiny gaps between the two protective shells, forming a tight physical barrier that can effectively prevent the intrusion of external moisture. The sealing bag 305 and the outlet... Water pipe 4 is connected via conduit 306, which is equipped with a one-way valve. The initial state inside the sealing bag 305 is a vacuum. When the submersible pump is started, the water flows along the outlet pipe 4 under the action of the pump. Some of the water enters the sealing bag 305 through the conduit 306, and the sealing bag 305 expands accordingly, tightly squeezing the second connector 202. This not only effectively prevents the second connector 202 from loosening under the impact of water flow, but also prevents water from seeping into the connection point, greatly improving the waterproof sealing effect and enabling the submersible pump to operate safely and stably in harsh underwater environments.
[0028] Example 2
[0029] Please see Figure 1-5Based on Embodiment 1, a sealing plate 2021 is fixedly sleeved on the surface of the second connector 202. A sealing groove 2022 is formed on one side of the sealing plate 2021, and a sealing ring 2023 is fixedly connected to the inner wall of the sealing groove 2022. A support plate 3021 is fixedly connected to the top of the second protective shell 302. A threaded rod 3022 is movably connected to the surface of the support plate 3021 through a bearing. A fixing frame 3023 is threadedly connected to the threaded end of the threaded rod 3022. The wire 203 is located in the inner cavity of the fixing frame 3023. A first connecting plate 3011 is fixedly connected to both the front and back of the first protective shell 301. A second connecting plate 3012 is fixedly connected to both the front and back of the second protective shell 302. A first bolt 3013 is provided through the top of the connecting plate 3012. The threaded end of the first bolt 3013 extends to the bottom of the first connecting plate 3011 and is threaded with a nut. A protective net 101 is provided at the bottom of the submersible pump body 1. A second bolt 102 is provided through the surface of the submersible pump body 1. The submersible pump body 1 and the protective net 101 are fixedly connected by the second bolt 102. A uniformly distributed heat-conducting plate 103 is fixedly connected to the surface of the submersible pump body 1. A nameplate 104 is fixedly connected to the bottom front of the submersible pump body 1. A connecting block 105 is fixedly connected to the bottom side of the submersible pump body 1. A lifting ring 106 is movably connected to the surface of the connecting block 105. A handle is fixedly connected to the top of the submersible pump body 1.
[0030] Specifically: The sealing plate 2021, which is fixedly sleeved on the surface of the second connector 202, has a sealing groove 2022 and a sealing ring 2023. When the sealing plate 2021 moves, the sealing ring 2023 can make tight contact with the first protective shell 301 and the second protective shell 302, further improving the sealing effect and preventing water from seeping in from the second connector 202. The support plate 3021, threaded rod 3022, and fixing bracket 3023 on the top of the second protective shell 302 allow the user to rotate the threaded rod 3022 to move the fixing bracket 3023 and squeeze the sealing plate 2021, further preventing the second connector 202 from loosening and stabilizing the wiring, thus ensuring the stability of the wiring when the submersible pump is working. The first protective shell 301 and the second protective shell 302 are connected and fixed by the first connecting plate 3011, the second connecting plate 3012, the first bolt 3013, and the nut. This connection method is convenient. The design facilitates disassembly and installation, allowing for easy inspection and maintenance of the internal wiring mechanism 2. It also ensures the secure connection between the first protective shell 301 and the second protective shell 302. A protective net 101 is installed at the bottom of the submersible pump body 1 and is fixedly connected to the submersible pump body 1 by the second bolt 102. This effectively prevents debris in the water from entering the submersible pump, protecting its internal structure and extending its service life. The evenly distributed heat-conducting fins 103 on the surface of the submersible pump body 1 increase the heat dissipation area, accelerate the dissipation of heat generated during operation, prevent damage from overheating, and improve the working stability of the submersible pump. The nameplate 104 on the bottom front allows users to understand the relevant parameters and information of the submersible pump, facilitating operation and maintenance. The connecting block 105 and lifting ring 106 on one side of the bottom of the submersible pump body 1 improve the ease of use, and the handle on the top makes it easy to manually move the submersible pump.
[0031] The working principle of this utility model is as follows: The user inserts the first connector 201 and the second connector 202. After insertion, the first protective shell 301, together with the second protective shell 302 and the sealing gasket 303, encloses and protects the first connector 201 and the second connector 202. The initial state inside the sealing bag 305 is a vacuum. When the submersible pump body 1 is working, water flows into the sealing bag 305 through the conduit 306. The sealing bag 305 expands due to the water pressure and squeezes the second connector 202, thus preventing the second connector from being damaged. The second connector 202 can be loosened, which can prevent water from entering the connection between the first connector 201 and the second connector 202, thereby improving the waterproof sealing effect. When the user rotates the threaded rod 3022, the threaded rod 3022 drives the fixing frame 3023 to move and squeeze the sealing plate 2021, which further prevents the second connector 202 from loosening. When the sealing plate 2021 moves, the sealing ring 2023 inside the sealing plate 2021 comes into close contact with the first protective shell 301 and the second protective shell 302, further improving the sealing effect.
[0032] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.
Claims
1. A submersible pump with a cable sealing structure, comprising a submersible pump body (1), characterized in that: A wiring mechanism (2) is provided on one side of the top of the submersible pump body (1), a sealing mechanism (3) is provided on the surface of the wiring mechanism (2), and a water outlet pipe (4) is connected to the surface of the submersible pump body (1). The wiring mechanism (2) includes a first connector (201), a second connector (202) is inserted into one side of the first connector (201), and a wire (203) is fixedly connected to one side of the second connector (202); The sealing mechanism (3) includes a first protective shell (301) and a second protective shell (302). The first protective shell (301) is fixed to the top of the submersible pump body (1). A sealing gasket (303) is provided between the first protective shell (301) and the second protective shell (302). The first terminal (201) and the second terminal (202) are both located in the inner cavity of the first protective shell (301) and the second protective shell (302). The inner walls of the first protective shell (301) and the second protective shell (302) are provided with receiving grooves (304). A sealing bag (305) is fixedly connected to the inner wall of the receiving groove (304). A conduit (306) is connected to the surface of the sealing bag (305). The other end of the conduit (306) is connected to the water outlet pipe (4). A one-way valve is sleeved on the surface of the conduit (306).
2. A submersible pump with a cable sealing structure according to claim 1, characterized in that: A sealing plate (2021) is fixedly sleeved on the surface of the second connector (202). A sealing groove (2022) is provided on one side of the sealing plate (2021), and a sealing ring (2023) is fixedly connected to the inner wall of the sealing groove (2022).
3. A submersible pump with a cable sealing structure according to claim 1, characterized in that: The second protective shell (302) is fixedly connected to the top of a support plate (3021). A threaded rod (3022) is movably connected to the surface of the support plate (3021) via a bearing. A fixing frame (3023) is threadedly connected to the threaded end of the threaded rod (3022). The wire (203) is located in the inner cavity of the fixing frame (3023).
4. A submersible pump with a cable sealing structure according to claim 1, characterized in that: The first protective shell (301) is fixedly connected to the front and back of the first connecting plate (3011), and the second protective shell (302) is fixedly connected to the front and back of the second connecting plate (3012). A first bolt (3013) is provided through the top of the second connecting plate (3012), and the threaded end of the first bolt (3013) extends through to the bottom of the first connecting plate (3011) and is threadedly connected to a nut.
5. A submersible pump with a cable sealing structure according to claim 1, characterized in that: The bottom of the submersible pump body (1) is provided with a protective net (101), and a second bolt (102) is provided through the surface of the submersible pump body (1). The submersible pump body (1) and the protective net (101) are fixedly connected by the second bolt (102).
6. A submersible pump with a cable sealing structure according to claim 1, characterized in that: The surface of the submersible pump body (1) is fixedly connected with uniformly distributed heat-conducting plates (103), and a nameplate (104) is fixedly connected to the bottom front of the submersible pump body (1).
7. A submersible pump with a cable sealing structure according to claim 1, characterized in that: A connecting block (105) is fixedly connected to the bottom of one side of the submersible pump body (1), a lifting ring (106) is movably connected to the surface of the connecting block (105), and a handle is fixedly connected to the top of the submersible pump body (1).