Submersible pump

Abstract

A kind of submersible pump, it is characterized in that, including water suction assembly and shell assembly, water suction assembly is arranged in shell assembly, water suction assembly includes impeller and motor, shell assembly is equipped with water inlet and water outlet;Shell assembly includes base, first water inlet and second water inlet are equipped on the base;Wherein, submersible pump further includes isolation plate, isolation plate is arranged on shell assembly, isolation plate is used to shield at least part of second water inlet;Isolation plate can be pushed by high-speed fluid, to change the size of second water inlet water area.The submersible pump provided in the application is provided with isolation plate on shell assembly, isolation plate shields at least part of second water inlet, isolation plate is pushed under the impact of high-speed fluid, so that the water area of second water inlet changes, the submersible pump of the application automatically adjusts the size of the water area of water inlet according to water level, so that submersible pump can efficiently absorb external liquid of each water level.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of submersible pumps, in particular to a submersible pump. BACKGROUND

[0002] A submersible pump is a device that can extract underground water to the ground surface, and plays an important role in farmland irrigation, seawater lifting, and fountain landscape.

[0003] A submersible pump includes a water inlet and a water outlet. Generally, the submersible pump sucks liquid from the water inlet and discharges it to the water outlet. The water inlet area affects the water suction efficiency of the submersible pump. In the prior art, the water inlet area of most submersible pumps is generally not adjustable.

[0004] The submersible pump with a non-adjustable water inlet area generally has a large water inlet area for wide applicability. However, when the water level is very low, the water inlet area is relatively large, the lowest water suction level of the water inlet is too high, and the water inlet will suck in gas-liquid mixture into the pump body, which will reduce the negative pressure effect of the submersible pump, thereby reducing the flow rate of the submersible pump, and the low water level liquid at the bottom of the submersible pump cannot be completely pumped out.

[0005] In summary, the submersible pump in the prior art has room for further improvement. SUMMARY

[0006] To solve the above technical problems, the present application provides a submersible pump which can automatically adjust the lowest water suction level of the water inlet to ensure that the submersible pump can also pump out the low water level more cleanly.

[0007] A submersible pump includes a water suction assembly and a housing assembly, the water suction assembly is arranged in the housing assembly, the water suction assembly includes an impeller and a motor, the housing assembly is provided with a water inlet and a water outlet;

[0008] The housing assembly includes a base, the base is provided with a first water inlet and a second water inlet;

[0009] The submersible pump further includes a partition plate, the partition plate is arranged on the housing assembly, and the partition plate is used to shield at least part of the second water inlet;

[0010] The partition plate can be pushed by high-speed fluid to change the size of the water inlet area.

[0011] In one aspect, the application provides a submersible pump, which is provided with a partition plate on the shell assembly, the partition plate blocks at least part of the second water inlet, and the partition plate is pushed by the impact of fluid, so that the lowest water suction level of the water inlet changes; when the water level is high, the impact of fluid on the partition plate is large, the blocking area of the second water inlet by the partition plate decreases, the lowest water suction level of the second water inlet is high, and the water inlet area of the second water inlet increases, so that the liquid can be quickly and massively sucked into the submersible pump; when the water level decreases, the impact of water is small, the partition plate resets, the blocking area of the second water inlet by the partition plate increases, the lowest water suction level of the second water inlet is low, and the water inlet area of the second water inlet decreases, so that the gap between the partition plate and the ground is small, the amount of gas-liquid mixture entering the pump body is reduced, the suction force of the submersible pump can be ensured, and the submersible pump can ensure that the water at low water level is pumped clean; the submersible pump of the application can automatically adjust the lowest water suction level and the water inlet area of the water inlet according to the flow rate of the liquid, so that the submersible pump can better suck the liquid at each water level, thereby improving the working efficiency of the submersible pump.

[0012] Further, the partition plate is made of hard material and movably connected to the base.

[0013] Further, the partition plate is made of flexible material, and the hardness of the partition plate is Shore 10-120 degrees.

[0014] One end of the partition plate is fixedly connected to the base.

[0015] Further, the base is provided with a mounting groove, and the partition plate is at least partially located in the mounting groove.

[0016] The partition plate comprises a mounting portion and an adjusting portion, the mounting portion is located in the mounting groove, and the adjusting portion is used for blocking the second water inlet.

[0017] The thickness of the adjusting portion is less than the thickness of the mounting portion.

[0018] Further, the partition plate is provided with a limiting protrusion, and the mounting groove is provided with a limiting hole matched with the limiting protrusion.

[0019] Further, the limiting protrusion protrudes towards the inside of the partition plate and exceeds the mounting portion.

[0020] Further, the base comprises at least two second water inlets, and the second water inlets have a supporting leg therebetween.

[0021] Further, the supporting leg is provided with a locking portion at both ends, and the partition plate is provided with a locking portion matched with the locking portion at both ends.

[0022] Further, the locking part comprises a locking slot, and the locking part comprises a locking block matched with the locking slot.

[0023] The thickness of the locking part is greater than the thickness of the mounting part.

[0024] Further, when the isolation plate is reset, the distance between the bottom end of the isolation plate and the bottom end of the base is L1.

[0025] The distance between the first water inlet and the bottom end of the base is L2.

[0026] Wherein, L2>L1>0.

[0027] The submersible pump of the present application has at least the following technical effects:

[0028] By arranging the isolation plate on the shell assembly, the isolation plate at least blocks part of the second water inlet in a natural state, and under the impact of high-speed fluid, the isolation plate can be pushed to change the blocking area of the second water inlet, so that the minimum water suction level and the water inlet area are changed. Based on the cooperation between the impact force of the fluid and the isolation plate, the submersible pump can automatically adjust the size of the water inlet area of the second water inlet according to the flow rate of the liquid to better suck the liquid at each water level, thereby improving the working efficiency of the submersible pump.

[0029] By using the isolation plate made of flexible material, one end of the isolation plate is fixedly connected to the base, and the free end of the isolation plate can be deformed under the impact of a certain high-speed fluid, and the free end can reset under no force, so that the impact of the liquid on the isolation plate can change the size of the second water inlet area.

[0030] By using the isolation plate made of hard material, one end of the isolation plate is movably connected to the shell assembly, and the free end of the isolation plate can be pushed away under the impact of the fluid, so that the blocking area of the isolation plate to the water inlet is reduced, thereby changing the water inlet area of the water inlet. When the speed of the fluid decreases, the isolation plate resets; thereby the water inlet area of the submersible pump can change the water inlet area of the second water inlet according to the size and flow rate of the fluid, thereby greatly improving the working efficiency of the submersible pump.

[0031] On the other hand, the present application also provides a submersible pump, comprising a water suction assembly and a shell assembly, the water suction assembly is arranged in the shell assembly, the shell assembly is provided with a water inlet and a water outlet;

[0032] The shell assembly comprises a base, and the base is provided with a first water inlet and a second water inlet.

[0033] Wherein, the second water inlet is provided with a one-way valve.

[0034] Compared with the prior art, the submersible pump is provided with a one-way valve at the second water inlet, when the liquid flow is large, the isolation plate is impacted open, the one-way valve is opened, the lowest water suction level of the second water inlet is higher, the water inlet area of the second water inlet is increased, and the liquid can flow into the submersible pump smoothly, when the liquid flow is small, the one-way valve is closed, the water suction level of the second water inlet is lowered, the water inlet area of the second water inlet is reduced, and the one-way valve has a one-way passing effect on the gas-liquid mixture, which can prevent the liquid in the submersible pump from flowing back, effectively assisting the submersible pump to ensure a certain suction force, so that the submersible pump can suck the liquid at a low water level; the submersible pump of the application can change the water inlet area of the second water inlet and the lowest water suction level of the second water inlet according to the size and flow rate of the liquid, thereby greatly improving the working efficiency of the submersible pump. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a structural schematic view of a submersible pump of an embodiment of the application;

[0036] Figure 2 is a sectional view of a submersible pump of an embodiment of the application;

[0037] Figure 3 is a sectional view of a connecting structure of a base and an isolation plate of an embodiment of the application;

[0038] Figure 4 is a sectional view of a base of an embodiment of the application;

[0039] Figure 5 is a structural schematic view of an isolation plate of an embodiment of the application;

[0040] Figure 6 is an enlarged view of a local part A of Figure 2 ;

[0041] Figure 7 is an enlarged view of a local part B of Figure 3 ;

[0042] Figure 8 is an enlarged view of a local part C of Figure 4 ;

[0043] Figure 9 is an enlarged view of a local part D of Figure 5 ;

[0044] Figure 10 is an enlarged view of a local part E of Figure 5 ;

[0045] Figure 11 is a side structural schematic view of a base of an embodiment of the application.

[0046] 1, submersible pump;

[0047] 11, water absorption assembly; 12, shell assembly; 13, isolation plate; 14, water outlet;

[0048] 121, base;

[0049] 1211, mounting groove; 1212, limiting hole; 1213, first water inlet; 1214, second water inlet; 1215, support leg; 1216, locking part; 1217, support rib; 12161, lock block;

[0050] 131, mounting part; 132, limiting protrusion; 133, adjusting part; 134, locking part; 1341, locking groove. DETAILED DESCRIPTION

[0051] In order for those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be described in detail below in conjunction with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present disclosure and do not limit the present disclosure.

[0052] In the description of the present application, if the first, second, only for the purpose of distinguishing technical features, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the order of the indicated technical features.

[0053] Those skilled in the art should understand that in the disclosure of the present application, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, so the above terms cannot be understood as limiting the present application.

[0054] The present application will be further described in detail below in conjunction with the drawings, see Figures 1 to 11 Description.

[0055] The present embodiment provides a submersible pump, as Figures 1 to 2 shown, which is a structural schematic diagram and a cross-sectional schematic diagram of the submersible pump 1.

[0056] The submersible pump 1 of the embodiment comprises a water suction assembly 11 and a shell assembly 12, the water suction assembly 11 is arranged in the shell assembly 12, the water suction assembly 11 comprises an impeller and a motor, the motor drives the impeller to rotate, so as to form a suction force in the pump body, and the liquid is sucked from the water inlet on the shell assembly 12 and is guided out from the water outlet 14 on the shell assembly 12, wherein the height of the water inlet is lower than the height of the water outlet 14; in the embodiment, the internal connection relationship of the motor, the impeller and the shell assembly 12 is not the application point of the application, and will not be described here.

[0057] As shown in Figure 1 , Figure 2 , the shell assembly 12 comprises a base 121, the base 121 is arranged at the bottom of the water suction assembly 11, the base 121 is provided with a first water inlet 1213 and a second water inlet 1214, wherein the first water inlet 1213 is arranged at the middle position of the base 121, and the second water inlet 1214 is arranged on the outer wall of the base 121, when the submersible pump 1 pumps water, the external liquid enters the bottom of the base 121 from the second water inlet 1214, and then enters the inside of the submersible pump 1 through the first water inlet 1213; as shown in Figure 4 , the bottom of the shell assembly 12 is provided with a support rib 1217, the support rib 1217 is used for raising the first water inlet 1213, the support rib 1217 makes the first water inlet 1213 have a certain height from the horizontal plane, so as to ensure that the liquid can smoothly pass through the first water inlet 1213; the support rib 1217 is at least two, and a channel for the liquid to pass through is formed between each support rib 1217, so as to facilitate the liquid to flow to the first water inlet 1213;

[0058] As shown in Figures 2 to 3 , Figures 6 to 7 , the submersible pump 1 further comprises a partition plate 13, the partition plate 13 is connected with the shell assembly 12, and the partition plate 13 is used for shielding at least part of the second water inlet 1214, that is, the partition plate 13 at least shields part of the second water inlet 1214 in a natural state without force, but does not shield the second water inlet 1214 completely; one end of the partition plate 13 is connected to the shell assembly 12, and the free end of the partition plate 13 can be pushed by high-speed fluid, after the partition plate 13 is pushed, the shielding area of the second water inlet 1214 and the lowest water suction level height will change, so that the partition plate 13 can automatically and flexibly change the water inlet area of the second water inlet 1214 according to the water level and flow rate (equivalent to the impact force of the fluid) of the fluid, and the water suction effect of the submersible pump 1 is greatly improved;

[0059] The shielding of the partition plate 13 to the second water inlet 1214 has three states:

[0060] The first kind is that the isolation plate 13 is almost not affected by the fluid impact force, and the isolation plate 13 is almost not pushed, so that the shielding area of the isolation plate 13 to the second water inlet 1214 is maximum, the water inlet area of the second water inlet 1214 is minimum, the lowest water suction level height of the second water inlet 1214 is minimum, the gap between the isolation plate 13 and the ground is small, the amount of gas-liquid mixture entering the pump body is reduced, so that the suction of the submersible pump 1 can be guaranteed, and then the submersible pump 1 can suck the liquid at a low water level;

[0061] The second kind is that the isolation plate 13 is affected by the fluid impact force, so that the isolation plate 13 at least shields part of the second water inlet 1214, the shielding area of the second water inlet 1214 is moderate, the lowest water suction level height of the second water inlet 1214 is moderate, the water inlet area of the second water inlet 1214 is moderate, and the submersible pump 1 sucks the liquid at a medium water level;

[0062] The third kind is that the isolation plate 13 is affected by high-speed fluid impact, so that the isolation plate 13 is completely pushed away, the isolation plate 13 does not shield the second water inlet 1214, the lowest water suction level height of the second water inlet 1214 is highest, the water inlet area of the second water inlet 1214 is maximum, and the submersible pump 1 sucks the liquid at a high water level.

[0063] Further, the isolation plate 13 is made of flexible material, and the hardness of the isolation plate 13 is Shore 10-120 degrees. Within the hardness range, the isolation plate 13 can be deformed by fluid impact while being able to reset and restore when not under stress, so that the isolation plate 13 can change the shielding area of the second water inlet 1214 according to the flow rate of the fluid, so that the area and the lowest water suction level height of the second water inlet 1214 can be automatically adjusted according to the flow rate of the fluid, and then the submersible pump 1 can extract liquid at different water levels, and the working efficiency of the submersible pump 1 is improved. In the embodiment, the upper end of the isolation plate 13 is fixedly connected to the base 121, and the lower end of the isolation plate 13 is a free end which can be deformed by fluid impact.

[0064] Further, as Figure 6As shown, when the isolation plate 13 is reset, the distance between the bottom end of the isolation plate 13 and the bottom end of the base 121 is L1; the distance between the first water inlet 1213 and the bottom end of the base 121 is L2; and L2>L1>0. Here, it is indicated that the isolation plate 13 has a gap between the bottom end of the isolation plate 13 and the ground in the condition that the isolation plate 13 is reset without force, and the height of the gap is the lowest water level height of the second water inlet 1214, and the water inlet area can supply low water level liquid. At the same time, the distance between the first water inlet 1213 and the bottom end of the base 121 is greater than the distance between the isolation plate 13 and the bottom end of the base 121 when the isolation plate 13 is reset, so that the submersible pump 1 can ensure a certain negative pressure effect in the submersible pump 1 when sucking low water level liquid, and the isolation plate 13 can play a certain anti-backflow effect, so that the submersible pump 1 has sufficient suction to extract low water level liquid more cleanly. It should be noted that in the embodiment, the bottom end of the base 121 is in contact with the ground, and the horizontal plane where the bottom end is located can be regarded as the ground.

[0065] Further, as shown in Figure 4 , Figure 8 , the base 121 is provided with a mounting groove 1211, and the isolation plate 13 is at least partially located in the mounting groove 1211. In the embodiment, the mounting groove 1211 is located at the bottom of the base 121, and the top of the isolation plate 13 is arranged in the mounting groove 1211 to realize the connection of the isolation plate 13 and the base 121, so that the upper end of the isolation plate 13 is fixed, and the lower part can be deformed by fluid impact, so that the isolation plate 13 can be stably connected to the base 121 under the impact of fluid; as shown in Figure 5 , Figure 7 , Figures 9 to 10 , the isolation plate 13 includes a mounting portion 131 and an adjusting portion 133, the mounting portion 131 is located in the mounting groove 1211 to connect the isolation plate 13 and the base 121, and the adjusting portion 133 is used for shielding the second water inlet 1214; and the thickness of the adjusting portion 133 is less than the thickness of the mounting portion 131, so that the connection of the isolation plate 13 and the base 121 is more stable, and the adjusting portion 133 can be deformed under the impact of fluid.

[0066] Further, as shown in Figure 5 , Figure 7 , Figures 9 to 10 , the isolation plate 13 is provided with a limiting protrusion 132, and the mounting groove 1211 is provided with a limiting hole 1212 matched with the limiting protrusion 132. The limiting protrusion 132 is arranged at the top of the isolation plate 13, and the limiting protrusion 132 is arranged in the limiting hole 1212, which is conducive to increasing the connection stability of the isolation plate 13 and the base 121, so that the isolation plate 13 can still ensure stable connection with the base 121 under the impact of fluid.

[0067] Further, as shown in Figure 5 ,Figure 7 、 Figures 9 to 10 As shown in

[0068] Further, as shown in Figures 1 to 4 、 Figure 6 、 Figure 8 The base 121 comprises at least two second water inlets 1214, and the second water inlets 1214 are provided with supporting legs 1215. The supporting legs 1215 are provided with passages for liquid, which are the second water inlets 1214, so that the base 121 can stand stably on the ground, and the stability of the placement of the submersible pump 1 is ensured.

[0069] Further, as shown in Figure 8 、 Figure 10 The supporting legs 1215 are provided with locking portions 1216 at both ends, and the isolation plate 13 is provided with locking portions 134 matched with the locking portions 1216. The locking portions 134 are matched with the locking portions 1216, so that the isolation plate 13 can be connected stably on the supporting legs 1215, and the stable connection of the end of the isolation plate 13 and the base 121 is ensured.

[0070] Further, as shown in Figure 8 、 Figure 10 The locking portions 134 comprise locking grooves 1341, which are two recesses, and the recesses are asymmetric and irregular. The locking portions 1216 comprise locking blocks 12161 matched with the locking grooves 1341, and the locking blocks 12161 are inserted into the locking grooves 1341. The locking blocks 12161 are two, so that the connection of the locking portions 134 and the locking portions 1216 is more stable and firm. The thickness of the locking portions 134 is greater than that of the mounting portions 131, so that the connection of the locking portions 134 and the locking portions 1216 is more stable and firm, and the end of the isolation plate 13 is not easy to be separated from the supporting legs 1215.

[0071] In another alternative embodiment of the present application, the isolation plate 13 is made of hard material, and is movably connected to the base 121. In this embodiment, the upper end of the isolation plate 13 is movably connected to the base 121, and the lower end is a free end. The free end of the isolation plate 13 can be pushed away by the impact of the fluid, so that the shielding area of the isolation plate 13 to the second water inlet 1214 is reduced, and the water inlet area of the second water inlet 1214 is larger. When the speed of the fluid decreases, the isolation plate 13 resets, the shielding area of the isolation plate 13 to the second water inlet 1214 increases, and the water suction height of the second water inlet 1214 decreases. Thus, the water inlet area of the submersible pump 1 can be changed according to the size and flow rate of the fluid, so that the working efficiency of the submersible pump 1 is greatly improved. This embodiment is not shown in the drawings, but those skilled in the art can derive the corresponding effect according to the description.

[0072] In another alternative embodiment of the present application, as shown in Figure 11 the second water inlet 1214 is arranged on the side wall of the housing assembly 12, and the second water inlet 1214 is divided into an upper water inlet and a lower water inlet. The upper water inlet is a circular hole.

[0073] The bottom of the housing assembly 12 is provided with support ribs 1217, and the support ribs 1217 have passages for the flow of liquid. The passages are the lower water inlets of the second water inlet 1214. Figure 11 As shown, a one-way valve is arranged at the upper water inlet. In this embodiment, when the liquid flow is large, the one-way valve is opened, the water inlet area of the second water inlet 1214 is large, and the liquid flows smoothly into the submersible pump 1 from the upper water inlet and the lower water inlet. When the liquid flow is small, the one-way valve is closed, the upper water inlet is closed, the liquid enters the submersible pump 1 from the lower water inlet, the lowest water suction level and the water inlet area of the second water inlet 1214 are reduced, and the one-way valve has a one-way passage effect on the gas-liquid mixture, which can prevent the liquid in the submersible pump 1 from flowing back, effectively assisting the submersible pump 1 to ensure a certain suction force, so that the submersible pump 1 can suck low water level liquid. The submersible pump 1 of the present application can change the water inlet area of the second water inlet 1214 according to the size and flow rate of the liquid, so that the working efficiency of the submersible pump 1 is greatly improved.

[0074] Further, in this embodiment, the one-way valve is provided with an isolation plate 13, one end of the isolation plate 13 is connected with a spring, so that the isolation plate 13 can be pushed away by the impact of the fluid, thereby opening the one-way valve, increasing the water inlet area of the second water inlet 1214, and enabling the fluid to flow from the second water inlet 1214 into the pump body in large quantities and quickly. When the liquid flow is small, the isolation plate 13 resets, the one-way valve is closed, the water inlet area of the second water inlet 1214 is reduced, and the external liquid flows into the submersible pump 1 from the lower water inlet of the second water inlet 1214.

[0075] The following is the use process of the submersible pump 1 of an embodiment of the present application:

[0076] As shown in Figure 6 When the submersible pump 1 is in operation, when the submersible pump 1 is in a high water level, the external liquid is subjected to suction and flows into the submersible pump 1, the impact force of the external liquid is large, the isolation plate 13 is pushed and deformed, the isolation plate 13 does not block the second water inlet 1214 or blocks the second water inlet 1214 less, the lowest water suction level of the water inlet is higher, the water inlet area of the second water inlet 1214 is larger, the external liquid can quickly and in large quantities pass through the second water inlet 1214, and then flow into the submersible pump 1 from the first water inlet 1213 in the middle of the base 121, and then flow out from the water outlet 14 of the submersible pump 1;

[0077] When the external liquid is gradually reduced, the water level gradually decreases, the impact force of the external liquid on the isolation plate 13 gradually decreases, and when the impact of the external liquid on the isolation plate 13 is almost zero, the isolation plate 13 resets, the isolation plate 13 blocks the second water inlet 1214 with the largest area, the lowest water suction level of the water inlet is lowered, the water inlet area of the second water inlet 1214 is minimized, the isolation plate 13 has a small gap from the ground, reducing the amount of gas-liquid mixture entering the pump body, so that the suction of the submersible pump 1 can be guaranteed, and the submersible pump 1 can ensure that the water at a low water level can be pumped clean.

[0078] The above has described the present application in detail, and the principles and implementation modes of the present application have been described by applying specific examples. The above description of the embodiments is only used to help understand the present application and the core idea. It should be pointed out that for ordinary skilled persons in the technical field, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A submersible pump, characterized in that, It includes a water absorption component (11) and a housing component (12). The water absorption component (11) is disposed inside the housing component (12). The water absorption component (11) includes an impeller and a motor. The housing component (12) is provided with an inlet and an outlet (14). The housing assembly (12) includes a base (121), on which a first water inlet (1213) and a second water inlet (1214) are provided. The first water inlet (1213) is located in the middle of the base (121), and the second water inlet (1214) is located on the outer wall of the base (121). The submersible pump (1) further includes an isolation plate (13), which is disposed on the housing assembly (12); the isolation plate (13) is used to block at least part of the second inlet (1214), but does not completely block the second inlet (1214); The isolation plate (13) can be pushed by high-speed fluid to change the size of the water inlet area; when the isolation plate (13) is reset, the distance between the bottom end of the isolation plate (13) and the bottom end of the base (121) is L1; The distance between the first water inlet (1213) and the bottom end of the base (121) is L2; Among them, L2>L1>0.

2. A submersible pump according to claim 1, characterized in that, The isolation plate (13) is made of rigid material and is movably connected to the base (121).

3. A submersible pump according to claim 1, characterized in that, The isolation plate (13) is made of flexible material and has a hardness of Shore 10-120. One end of the isolation plate (13) is fixedly connected to the base (121).

4. A submersible pump according to claim 3, characterized in that, The base (121) is provided with a mounting groove (1211), and the isolation plate (13) is at least partially located in the mounting groove (1211); The isolation plate (13) includes a mounting part (131) and an adjustment part (133). The mounting part (131) is located in the mounting groove (1211), and the adjustment part (133) is used to block the second water inlet (1214). The thickness of the adjustment part (133) is less than the thickness of the mounting part (131).

5. A submersible pump according to claim 4, characterized in that, The isolation plate (13) is provided with a limiting protrusion (132), and the mounting groove (1211) is provided with a limiting hole (1212) that cooperates with the limiting protrusion (132).

6. A submersible pump according to claim 5, characterized in that, The limiting protrusion (132) protrudes into the partition plate (13) and extends beyond the mounting part (131).

7. A submersible pump according to any one of claims 1 to 6, characterized in that, The base (121) includes at least two second water inlets (1214), with a support leg (1215) between the second water inlets (1214).

8. A submersible pump according to claim 7, characterized in that, The support leg (1215) is provided with locking parts (1216) at both ends, and the isolation plate (13) is provided with locking parts (134) at both ends that cooperate with the locking parts (1216).

9. A submersible pump according to claim 8, characterized in that, The locking part (134) includes a locking groove (1341), and the locking part (1216) includes a locking block (12161) that engages with the locking groove (1341); The thickness of the locking part (134) is greater than the thickness of the mounting part (131).

10. The submersible pump according to claim 1, characterized in that, The second inlet (1214) is divided into an upper inlet and a lower inlet; a one-way valve is provided at the upper inlet of the second inlet (1214); an isolation plate is provided in the one-way valve; The bottom of the housing assembly (12) is provided with support ribs (1217), and there are channels for liquid to flow between the support ribs (1217). These channels are the lower inlets of the second inlet (1214).

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