A water pipe joint for a submersible pump and a submersible pump

Abstract

The application discloses a water pipe joint for a submersible pump, which comprises a connecting assembly and a movable sealing assembly. One end of the connecting assembly is connectable with a water pump body of the submersible pump, and the other end of the connecting assembly is connectable with a water pipe. The movable sealing assembly is arranged between the water pump body and the connecting assembly. The connecting assembly comprises an exhaust passage and a water flow passage. Water flow in the water pump body flows through the connecting assembly through the water flow passage. One end of the exhaust passage is in communication with a pump cavity of the water pump body, and the other end of the exhaust passage is in communication with the outside. The movable sealing assembly is used for plugging the exhaust passage when the pressure in the pump cavity of the water pump body is greater than the outside pressure. The movable sealing assembly is used for plugging the exhaust passage when the pressure difference between the inside and the outside exists, so that the normal operation and the drainage efficiency of the submersible pump are ensured, the submersible pump can normally discharge water, the drainage failure caused by air retention is avoided, and the working reliability and the use efficiency of the submersible pump are improved.

Description

Technical Field

[0001] This application relates to the field of submersible pump technology, specifically a water pipe connector for a submersible pump and a submersible pump. Background Technology

[0002] A submersible pump is a type of pump that can operate by being directly submerged in water. It uses an electric motor to drive an impeller, drawing water from a water source and delivering it to a designated location. Submersible pumps are widely used in drainage, irrigation, water supply, sewage discharge, mine drainage, and other fields, and are particularly suitable for pumping water from deep wells, pools, rivers, and other similar locations.

[0003] When a submersible pump is connected to a water pipe, if there is residual water in the pipe, this water will form a "water seal," preventing the air in the pump body from being discharged. This causes air blockage, resulting in air being trapped inside the pump, which in turn prevents the submersible pump from discharging water normally and affects its normal operation.

[0004] Therefore, there is room for further improvement in the structure between the submersible pump and the water pipe in the existing technology. Utility Model Content

[0005] In view of this, and addressing the technical problem in the prior art where, after a submersible pump is connected to a section of water pipe, the water accumulation in the pipe prevents the air from being expelled from the pump body, causing the submersible pump to fail to discharge water normally, this application provides a water pipe connector for a submersible pump and a submersible pump. By setting up a water pipe connector, which is connected between the pump and the preceding section of water pipe, the water pipe connector can effectively expel air from the pump body, ensuring normal water discharge from the submersible pump, avoiding drainage failures caused by air retention, and improving the working reliability and efficiency of the submersible pump.

[0006] To achieve the above objectives, this application provides the following technical solution: a water pipe connector for a submersible pump, comprising: The connecting component can be connected to the water pump body of the submersible pump at one end and to a water pipe at the other end; A movable sealing assembly is located between the pump body and the connecting assembly; The connecting component includes an exhaust channel and a water flow channel. The water flow inside the water pump body flows through the connecting component via the water flow channel. One end of the exhaust channel is connected to the pump chamber of the water pump body, and the other end is connected to the outside. The movable sealing assembly is used to block the exhaust passage when the pressure inside the pump chamber of the water pump body is greater than the external pressure.

[0007] Compared to existing technologies, by incorporating a movable sealing component, which seals the exhaust passage when there is a pressure difference between the inside and outside, the submersible pump can operate normally and maintain drainage efficiency. This ensures normal water output and prevents drainage failures caused by air retention, thus improving the pump's reliability and efficiency. When the submersible pump is not running, the pressure inside the pump body is close to the external pressure. The movable sealing component is not subjected to sufficient pressure to deform or move, allowing air to escape through the exhaust passage, maintaining airflow and preventing air retention. When the submersible pump is running, the pressure inside the pump body is greater than the external pressure. The movable sealing component seals the exhaust passage under the pressure difference, allowing water to flow through the water flow channel, connecting components, and then through the water pipe for normal water discharge.

[0008] Preferably, the movable sealing assembly is a one-piece molded structure.

[0009] In this embodiment, the one-piece molded active sealing component is relatively simple to mold during production, which can significantly reduce production costs, improve production efficiency and product quality.

[0010] Preferably, the movable sealing assembly includes a stop block and a steel ball, with the steel ball located between the stop block and the exhaust channel. When there is a pressure difference between the water pump body and the outside, the steel ball can block the exhaust channel.

[0011] In this embodiment, the steel ball can block the exhaust channel to ensure the normal operation and drainage efficiency of the submersible pump, ensure the normal water output of the submersible pump, avoid drainage failures caused by air retention, and further improve the working reliability and usage efficiency of the submersible pump.

[0012] Preferably, the movable sealing assembly includes a connecting block and a sealing block. The connecting block is located between the connecting assembly and the water pump body, and the sealing block is connected to the connecting block. The sealing block is used to seal the exhaust passage.

[0013] In this embodiment, the sealing block is used to block the exhaust channel to ensure the normal operation and drainage efficiency of the submersible pump, ensure the normal water output of the submersible pump, avoid drainage failures caused by air retention, and further improve the working reliability and usage efficiency of the submersible pump.

[0014] Preferably, the outer diameter of the sealing block is greater than or equal to the inner diameter of the exhaust channel.

[0015] In this embodiment, by setting reasonable dimensions, when the submersible pump starts working, the pump body cavity begins to fill with water. The pressure inside the pump body cavity will be greater than the external pressure. The pressure difference causes the sealing block to fit tightly against the exhaust port of the exhaust channel, thus playing a sealing role. This effectively blocks the exhaust channel and prevents water from overflowing from the exhaust channel. At the same time, it ensures that the water flow inside the pump body can flow smoothly through the water flow channel, the connecting components, and the water pipe, achieving normal water discharge.

[0016] Preferably, the exhaust passage includes a first passage and a second passage, wherein the first passage is located between the movable sealing assembly and the second passage; The size of the first channel is larger than the size of the second channel.

[0017] In this embodiment, by setting a first channel and a second channel with different inner diameters, the fluid flow can be controlled in stages and the pressure can be regulated. The larger inner diameter facilitates rapid venting, while the smaller inner diameter helps to limit the flow rate, guides the flow, and also limits the flow.

[0018] Preferably, when the pressure inside the pump chamber of the main body of the water pump is greater than the external pressure, the steel ball is used to block the second channel; The outer diameter of the steel ball is larger than the inner diameter of the second channel and smaller than the inner diameter of the first channel.

[0019] In this embodiment, when the submersible pump is started, water flows into the pump body. When the pump chamber of the pump body is full of water, the pressure inside the pump chamber will be greater than the external pressure. The pressure difference will push the steel ball towards the second channel. The steel ball will get stuck on the second channel and directly seal the second channel, accurately blocking the second channel and forming an effective sealing effect.

[0020] Preferably, the connecting assembly has a base platform extending along the pump chamber direction of the water pump body, and the exhaust channel is located at the end of the base platform facing the water pump body. The base is provided with a through hole that penetrates the base and communicates with the exhaust channel, and the through hole is provided to penetrate along the lateral direction of the connecting component.

[0021] In this embodiment, by providing a through hole, when the submersible pump is not started, the air in the pump chamber of the main body of the pump can be smoothly discharged through the exhaust channel and the through hole, maintaining air circulation and preventing air stagnation.

[0022] Preferably, the end of the base facing the water pump body is provided with a mounting part for installing a movable sealing component, and the movable sealing component at least partially cooperates with the mounting part to realize the connection between the movable sealing component and the base.

[0023] In this embodiment, by providing an installation part, the stability and firmness of the movable sealing assembly between the connecting assembly and the water pump body can be improved, preventing the movable sealing assembly from moving or falling off.

[0024] A submersible pump includes the water pipe fitting for a submersible pump described above. Attached Figure Description

[0025] Figure 1 A three-dimensional structural schematic diagram of a water pipe connector for a submersible pump provided in an embodiment of this application; Figure 2 A schematic diagram of the left side of a water pipe connector provided in an embodiment of this application; Figure 3 for Figure 2 AA cross-sectional structure schematic diagram Figure 1 ; Figure 4 A schematic diagram of the structure of an active sealing assembly provided in an embodiment of this application. Figure 1 ; Figure 5 This is a right-side structural schematic diagram of a water pipe connector provided in an embodiment of this application; Figure 6 for Figure 5 A schematic diagram of the BB cross-sectional structure; Figure 7 for Figure 2 AA cross-sectional structure schematic diagram Figure 2 ; Figure 8 A schematic diagram of the structure of an active sealing assembly provided in an embodiment of this application. Figure 2 .

[0026] In the diagram: 2. Connecting component; 3. Movable sealing component; 11. Pump body; 21. Exhaust channel; 22. Water flow channel; 24. Base; 31. Stop block; 32. Steel ball; 34. Sealing block; 35. Connecting block; 36. Fitting part; 211. First channel; 212. Second channel; 241. Through hole. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions of this disclosure, the following detailed, clear, and complete description of this disclosure is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this disclosure and are not intended to limit it.

[0028] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0029] Those skilled in the art should understand that in the disclosure of this application, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0030] The present application will now be described in further detail with reference to the accompanying drawings, see below. Figures 1 to 8 illustrate.

[0031] Example 1 This embodiment provides a water pipe connector for a submersible pump, which is applied in the field of submersible pump technology. Specifically, as shown in... Figures 1 to 6 As shown, the system includes a connecting component 2 and a movable sealing component 3. The movable sealing component 3 is disposed between the pump body 11 and the connecting component 2. One end of the connecting component 2 can be connected to the pump body 11 of the submersible pump, and the other end of the connecting component 2 can be connected to a water pipe. The connecting component 2 includes an exhaust channel 21 and a water flow channel 22. Water in the pump body 11 flows through the water flow channel 22, through the connecting component 2, and then through the water pipe. One end of the exhaust channel 21 is connected to the pump chamber of the pump body 11, and the other end of the exhaust channel 21 is connected to the outside. The water flow channel 22 is not connected to the water pipe. The movable sealing component 3 is used to seal the exhaust channel 21 when the pressure inside the pump chamber of the pump body 11 is greater than the external pressure, thereby ensuring the normal operation and drainage efficiency of the submersible pump, ensuring normal water output, avoiding drainage failures caused by air retention, and further improving the working reliability and efficiency of the submersible pump.

[0032] When the submersible pump is not started, the pressure (air pressure) inside the pump chamber of the pump body 11 is close to the external pressure (air pressure). The movable sealing component 3 is not subjected to sufficient pressure to deform or move. The air inside the pump chamber of the pump body 11 is discharged through the exhaust channel 21 to maintain air circulation and prevent air stagnation. When the submersible pump is started, water begins to enter the pump body 11. The pressure inside the pump chamber of the pump body 11 is greater than the external pressure. The movable sealing component 3 can block the exhaust channel 21. The water flow inside the pump body 11 flows through the water flow channel 22, through the connecting component 2, and then through the water pipe to achieve normal water discharge.

[0033] Among them, such as Figure 4 As shown, the movable sealing component 3 is a one-piece molded structure. The one-piece molded movable sealing component 3 is relatively simple to mold during production, which can significantly reduce production costs, improve production efficiency and product quality.

[0034] Furthermore, such as Figure 3 , Figure 4 , Figure 6 As shown, the movable sealing assembly 3 includes a connecting block 35 and a sealing block 34. The connecting block 35 has a planar structure and is located between the connecting assembly 2 and the pump body 11. The sealing block 34 is connected to the connecting block 35 and is located in the middle of the connecting block 35. The sealing block 34 is set in relation to the exhaust channel 21 and is used to seal the exhaust channel 21 to ensure the normal operation and drainage efficiency of the submersible pump, ensure the normal water output of the submersible pump, avoid drainage failures caused by air retention, and further improve the working reliability and usage efficiency of the submersible pump.

[0035] The outer diameter of the sealing block 34 is greater than or equal to the inner diameter of the exhaust channel 21. By setting a reasonable size, when the submersible pump starts to work, the pump chamber of the pump body 11 begins to fill with water. The pressure inside the pump chamber of the pump body 11 will be greater than the external pressure. The pressure difference causes the sealing block 34 to fit tightly against the exhaust port of the exhaust channel 21, thus playing a sealing role and effectively sealing the exhaust channel 21 to prevent water from overflowing from the exhaust channel 21. At the same time, it ensures that the water in the pump body 11 can flow smoothly through the water flow channel 22, through the connecting component 2 and the water pipe, to achieve normal water discharge.

[0036] Furthermore, such as Figure 3 , Figure 6 As shown, the connecting assembly 2 includes a base 24 extending along the pump chamber direction of the pump body 11. An exhaust channel 21 is located at the end of the base 24 facing the pump body 11, and is situated in the middle of the base 24. The base 24 has a through hole 241 that penetrates the base 24 and communicates with the exhaust channel 21. The through hole 241 extends along the transverse direction of the connecting assembly 2, ensuring smooth airflow within the pump chamber of the pump body 11. By providing the through hole 241, when the submersible pump is not running, air within the pump chamber of the pump body 11 can be smoothly discharged through the exhaust channel 21 and the through hole 241, maintaining airflow and preventing air stagnation.

[0037] The base 24 has a mounting portion for installing the movable sealing assembly 3 at one end facing the pump body 11. There are at least two mounting portions, and the movable sealing assembly 3 at least partially mates with the mounting portions to connect the movable sealing assembly 3 to the base 24. At least two mating portions 36 are provided between the connecting block 35 and the sealing block 34. One side of the mating portion 36 connects to the inner wall of the connecting block 35, and the other side connects to the sealing block 34. The mating portions 36 mate with the mounting portions to achieve a fixed connection between the movable sealing assembly 3 and the base 24, improving the stability and firmness of the movable sealing assembly 3 between the connecting assembly 2 and the pump body 11, and preventing the movable sealing assembly 3 from moving or falling off.

[0038] It should be noted that the mounting part can be a groove, and the mating part 36 can be a protrusion. The groove and the protrusion mate to achieve a fixed connection between the movable sealing assembly 3 and the base 24. The connection between the movable sealing assembly 3 and the base 24 can also be a threaded connection or a snap-fit ​​connection, as long as the connection can be achieved.

[0039] A submersible pump includes a water pipe connector as described in the above embodiment. When the submersible pump is operating, the water pipe connector is installed above the horizontal plane of the pump to prevent siphoning within the pump's piping. When the submersible pump is powered off, the water pipe bends downwards, continuously siphoning water out of the tank, creating a continuous flow. This can easily lead to continued water flow or even backflow, affecting the normal operation of the pump. By using a water pipe connector, the vacuum inside is automatically broken, allowing air to enter the water pipe. When air enters, it disrupts the continuity of water flow within the pipe, interrupting the siphon effect and stopping the water flow. This ensures that water in the pipe will not continue to be drawn away after the pump stops, thus protecting the pump's safety and stable operation.

[0040] Example 2 The difference between this embodiment and Embodiment 1 is that, in this embodiment, as... Figures 7 to 8 As shown, the movable sealing assembly 3 includes a stop block 31 and a steel ball 32. The stop block 31 is located between the connecting assembly 2 and the water pump body 11, and the steel ball 32 is located between the stop block 31 and the exhaust channel 21. When there is a pressure difference between the water pump body 11 and the outside, the steel ball 32 can block the exhaust channel 21 to ensure the normal operation and drainage efficiency of the submersible pump, ensure normal water output from the submersible pump, avoid drainage failures caused by air retention, and further improve the working reliability and efficiency of the submersible pump. The stop block 31 is at least partially used to support the steel ball 32 to prevent the steel ball 32 from falling or detaching into the water pump body 11.

[0041] The stop block 31 is provided with a hole for water or air to pass through, and at least two mating parts 36 are also provided on the stop block 31. The mating parts 36 and the stop block 31 are integrally formed. The mating parts 36 cooperate with the mounting parts to realize the connection and fixation of the movable sealing component 3 and the connecting component 2.

[0042] Furthermore, such as Figure 7 As shown, the exhaust channel 21 includes a first channel 211 and a second channel 212. The second channel 212 is located between the through hole 241 and the first channel 211. The first channel 211 is connected to the second channel 212, and the second channel 212 is connected to the through hole 241. The size of the first channel 211 is larger than the size of the second channel 212. By setting the first channel 211 and the second channel 212 with different inner diameters, the fluid flow can be controlled in stages and the pressure can be regulated. The larger inner diameter facilitates rapid exhaust, while the smaller inner diameter helps to limit the flow rate and also plays a guiding role. At the same time, it also plays a limiting role, confining the steel ball 32 in the first channel 211 to prevent the steel ball 32 from moving towards the second channel 212 during the sealing process, thus avoiding damage or breakage and extending the service life of the movable sealing assembly 3.

[0043] When the pressure inside the pump chamber of the water pump body 11 is greater than the external pressure, the steel ball 32 is used to block the second channel 212. The outer diameter of the steel ball 32 is greater than the inner diameter of the second channel 212 and smaller than the inner diameter of the first channel 211. In other words, when the submersible pump is not started, air can be smoothly discharged through the first channel 211, the second channel 212, and the through hole 241. When the submersible pump is started, water flows into the pump body 11. When the pump chamber of the pump body 11 is full of water, the pressure inside the pump chamber of the pump body 11 will be greater than the external pressure. The pressure difference will push the steel ball 32 towards the second channel 212. The steel ball 32 will be stuck on the second channel 212, directly sealing the second channel 212 and accurately blocking it, forming an effective sealing effect. This prevents water from overflowing from the exhaust channel 21, while ensuring that the water flow inside the pump body 11 can flow smoothly through the water flow channel 22, through the connecting component 2, and the water pipe, realizing the normal water discharge of the submersible pump and further improving the drainage function and efficiency of the submersible pump. The rest of the structure is the same as in Embodiment 1, and will not be described again in this embodiment.

[0044] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A water pipe connector for a submersible pump, characterized in that, include: The connecting component (2) can be connected to the water pump body (11) of the submersible pump at one end and to the water pipe at the other end; The movable sealing assembly (3) is disposed between the pump body (11) and the connecting assembly (2); The connecting component (2) includes an exhaust channel (21) and a water flow channel (22). The water flow in the pump body (11) flows through the connecting component (2) via the water flow channel (22). One end of the exhaust channel (21) is connected to the pump chamber of the pump body (11), and the other end is connected to the outside. The active sealing component (3) is used to block the exhaust passage (21) when the pressure inside the pump chamber of the pump body (11) is greater than the external pressure.

2. The water pipe connector for a submersible pump according to claim 1, characterized in that, The active sealing component (3) is an integrally molded structure.

3. The water pipe connector for a submersible pump according to claim 1, characterized in that, The movable sealing assembly (3) includes a stop (31) and a steel ball (32). The steel ball (32) is located between the stop (31) and the exhaust channel (21). When there is a pressure difference between the water pump body (11) and the outside, the steel ball (32) can block the exhaust channel (21).

4. The water pipe connector for a submersible pump according to claim 2, characterized in that, The active sealing assembly (3) includes a connecting block (35) and a sealing block (34). The connecting block (35) is located between the connecting assembly (2) and the pump body (11). The sealing block (34) is connected to the connecting block (35) and is used to seal the exhaust passage (21).

5. The water pipe connector for a submersible pump according to claim 4, characterized in that, The outer diameter of the sealing block (34) is greater than or equal to the inner diameter of the exhaust channel (21).

6. The water pipe connector for a submersible pump according to claim 3, characterized in that, The exhaust passage (21) includes a first passage (211) and a second passage (212), wherein the first passage (211) is located between the movable sealing assembly (3) and the second passage (212); The size of the first channel (211) is larger than the size of the second channel (212).

7. The water pipe connector for a submersible pump according to claim 6, characterized in that, When the pressure inside the pump chamber of the water pump body (11) is greater than the external pressure, the steel ball (32) is used to block the second channel (212); The outer diameter of the steel ball (32) is larger than the inner diameter of the second channel (212) and smaller than the inner diameter of the first channel (211).

8. The water pipe connector for a submersible pump according to claim 1, characterized in that, The connecting assembly (2) is provided with a base (24), which extends along the pump chamber direction of the pump body (11), and the exhaust channel (21) is provided at the end of the base (24) facing the pump body (11); The base (24) is provided with a through hole (241) that penetrates the base (24) and communicates with the exhaust channel (21), and the through hole (241) is provided through the transverse direction of the connecting component (2).

9. The water pipe connector for a submersible pump according to claim 8, characterized in that, The base (24) has a mounting part for installing a movable sealing assembly (3) at one end facing the pump body (11). The movable sealing assembly (3) at least partially cooperates with the mounting part to achieve the connection between the movable sealing assembly (3) and the base (24).

10. A submersible pump, characterized in that, Includes the water pipe fitting for a submersible pump as described in any one of claims 1 to 9.

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