Multi-stage automatic submersible pump capable of achieving low-water-level starting and low-residual-water-level starting

Abstract

The utility model belongs to the technical field of submersible pumps, particularly relates to a multi-stage automatic submersible pump capable of realizing low-water-level starting and low-residual-water-level starting, and aims to solve the problems that the conventional submersible pump is high in starting water level, poor in residual water level treatment, poor in filtering effect, easy to block and the like. The submersible pump comprises a submersible pump body, the submersible pump body comprises a shell, a low-suction base is fixedly installed at the bottom end of the shell and used for supporting the submersible pump body, and a plurality of water inlet grooves are formed in the bottom of the low-suction base. By additionally arranging the filtering base and the detachable filtering net, blocking is effectively prevented, the stability and adaptability of the submersible pump can be enhanced through the arrangement of the supporting frame, the performance of the submersible pump is improved through the overall design, the service life is prolonged, and the maintenance burden is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible pumps, in particular to a multi-stage automatic submersible pump that can achieve low water level start-up and low remaining water level. Background Technique

[0002] In the fields of agricultural irrigation, urban drainage, industrial water treatment, etc., submersible pumps, as an important water conveyance equipment, their performance and use efficiency are directly related to the operation effect of the entire system. In the use of traditional submersible pumps, the following problems still exist:

[0003] Traditional submersible pumps often have problems in design such as high start-up water level requirements and insufficient remaining water level treatment ability. This results in the inability of submersible pumps to work effectively in shallow water areas or environments with large water level fluctuations, and may even be damaged due to dry running. In addition, the extraction effect of traditional submersible pumps on water sources is not good, and the remaining water level after extraction is still relatively high; moreover, the lack of an effective filtering device also makes submersible pumps prone to blockage after long-term operation, affecting work efficiency and service life.

[0004] In view of the above problems, the present utility model document proposes a multi-stage automatic submersible pump that can achieve low water level start-up and low remaining water level. Content of the Utility Model

[0005] The purpose of the present utility model is to solve the disadvantages existing in the prior art, such as high start-up water level and poor remaining water level treatment of traditional submersible pumps, and easy blockage due to poor filtering effect, and to propose a multi-stage automatic submersible pump that can achieve low water level start-up and low remaining water level.

[0006] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] A multi-stage automatic submersible pump that can achieve low water level start-up and low remaining water level, comprising:

[0008] A submersible pump main body, the submersible pump main body includes a housing, a low-suction base is fixedly installed at the bottom end of the housing, the low-suction base is used to support the submersible pump main body, a plurality of water inlet grooves are opened at the bottom of the low-suction base, a water inlet is opened at the bottom of the low-suction base, and the water inlet grooves and the water inlet cooperate to facilitate the entry of water flow;

[0009] It further includes a motor, a support frame is fixedly installed inside the housing, the motor is fixedly connected to the support frame inside the housing, and at least one impeller is fixedly installed at one end of the output shaft of the motor, and the impeller is used to drive and pump water flow;

[0010] It further includes a water outlet which is opened at the top of the housing. A water flow channel is opened inside the housing, and the water flow channel is communicated with the water outlet. A diversion plate is fixedly installed inside the housing, and the diversion plate is located between the impeller and the motor. The diversion plate is used to guide water flow into the water flow channel.

[0011] It further includes a water wave switch which is electrically connected to the submersible pump main body through a wire. The water wave switch is used to detect the water level.

[0012] In a possible design, a filter base is provided at the bottom end of the submersible pump main body. The filter base is located below the water inlet. A stainless steel filter screen is fixedly installed inside the filter base. The stainless steel filter screen is used to filter the water flow entering the water inlet.

[0013] In a possible design, a plurality of limiting ribs are fixedly installed on the outer wall of the filter base, and a plurality of limiting slots are fixedly installed at the bottom of the low-suction base. The plurality of limiting ribs correspond to and are engaged with the plurality of limiting slots, which is used to facilitate the disassembly and cleaning of the filter base.

[0014] In a possible design, a support frame is sleeved on the outer wall of the low-suction base. A plurality of fixing columns are fixedly installed on the inner wall of the support frame. A first annular groove is opened on the outer wall of the low-suction base. The plurality of fixing columns are all slidably connected to the inner wall of the first annular groove. A plurality of support plates are fixedly installed on the outer wall of the support frame. The plurality of support plates are used to assist in supporting the submersible pump main body.

[0015] In a possible design, a second annular groove is opened on the outer wall of the low-suction base. The second annular groove is located below the first annular groove. A plurality of connection grooves are opened on the outer wall of the low-suction base. The plurality of connection grooves correspond to the plurality of fixing columns, and the plurality of connection grooves are all communicated with the first annular groove and the second annular groove, which is used to adjust the height of the support frame to increase the gap at the bottom of the low-suction base.

[0016] In a possible design, the support frame is composed of a plurality of support rings and support rods. There are gaps between the plurality of support rings and they are all fixedly connected to the plurality of support rods, which is used to ensure the smooth passage of water flow.

[0017] In a possible design, inclined surfaces are provided on one side of the plurality of limiting ribs, which is used to quickly install the filter base.

[0018] In a possible design, a power plug is electrically connected to the top of the submersible pump main body through a wire. The power plug is matched with an external power supply to supply power to the submersible pump main body.

[0019] In this application, during use, first place the multi-stage submersible pump in a container. As the water in the container gradually increases, when the water level reaches the operating water level line of the water wave switch, which is 20 mm, the motor inside the pump will start. The motor will drive at least one impeller to rotate within the guide disk. The rotation of the impeller will generate a huge centrifugal force to suck water into the pump from around the low-suction base. The external water flow will enter the filter base through multiple water inlet grooves at the bottom of the low-suction base. Since the filter base is formed by plastic coating a stainless steel filter mesh into the corresponding base by injection molding, there will be no excessive impurities in the water entering the water inlet. At this time, under the action of the centrifugal force of the motor and at least one impeller, the potential energy of the water changes. The water passes through guide components such as the guide disk and the support frame on the inner side of the pump body and enters the water flow channel, and then is discharged from the water outlet. In this way, a transformation or work of the liquid from low potential energy to high potential energy is completed. By working in this way repeatedly, the water in the container can be continuously pumped out until the water level in the container is pumped below 1 mm. During the use of this submersible pump, considering the special working environment and properties of the filter base, the user needs to clean it in time. Since the filter base is rotationally snapped into the limit card slot in the low-suction base through multiple limit ribs with slopes at corresponding positions, when cleaning is required, only rotate the filter base in the opposite direction to remove it from the bottom of the low-suction base to complete the cleaning. When this submersible pump is in use, the support frame can be engaged with the first annular groove on the outer wall of the low-suction base through multiple fixing columns. At this time, multiple support plates on the outer wall of the support frame can provide additional support for the submersible pump. When the user rotates the support frame and makes the fixing columns move and engage in the second annular groove, the support frame can lift the height of the submersible pump through multiple support plates, increasing the water inlet space at the bottom, so as to avoid the reduction of the water inlet space caused by environmental or container bottom siltation, and improve its pumping efficiency.

[0020] Beneficial effects:

[0021] In this utility model, for a multi-stage automatic submersible pump that can achieve low water level startup and low remaining water level, through the uniquely designed low-suction base and water inlet grooves, this submersible pump can start and operate stably at a relatively low water level, effectively solving the problem that traditional submersible pumps cannot start in shallow water areas, broadening the scope of use of submersible pumps. And due to its low-suction design, this submersible pump can fully extract the water source inside the container, making the remaining water level relatively low, ensuring a good extraction effect on the water source.

[0022] In this utility model, for a multi-stage automatic submersible pump that can achieve low water level startup and low remaining water level, by adding a filter base and a stainless steel filter mesh at the bottom of the submersible pump, it effectively intercepts impurities and particulate matter in the water, prevents blockage and wear inside the submersible pump, extends the service life of the submersible pump. At the same time, the filter base adopts a detachable design, which is convenient for users to clean and maintain, reducing the maintenance cost.

[0023] In the present utility model, for a multi-stage automatic submersible pump that can achieve low water level startup and low remaining water level, through the design of a support frame and fixed columns, the height of the support frame of the submersible pump can be adjusted according to actual needs, which can assist in supporting the standing of the submersible pump. At the same time, it can selectively lift a part of its bottom to meet the requirements of the working environment. This flexible support structure not only improves the stability of the submersible pump but also enhances its ability to cope with complex environments;

[0024] In the present utility model, through the innovative design of a low suction base and an inlet groove, the submersible pump can achieve low water level startup, broaden the application range, fully extract water sources, reduce the remaining water level. By adding a filter base and a detachable filter net, it can effectively prevent blockage, extend the service life, and reduce the maintenance cost. The setting of the support frame can enhance the stability and adaptability of the submersible pump, and it can handle complex environments with ease. The overall design improves the performance of the submersible pump, extends its service life, and reduces the maintenance burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional structural schematic diagram of a multi-stage automatic submersible pump that can achieve low water level startup and low remaining water level proposed by the present utility model;

[0026] Figure 2 is a sectional structural schematic diagram of a multi-stage automatic submersible pump that can achieve low water level startup and low remaining water level proposed by the present utility model;

[0027] Figure 3 is a structural schematic diagram of the low suction base of a multi-stage automatic submersible pump that can achieve low water level startup and low remaining water level proposed by the present utility model;

[0028] Figure 4 is a structural schematic diagram of the filter base of a multi-stage automatic submersible pump that can achieve low water level startup and low remaining water level proposed by the present utility model;

[0029] Figure 5 is a structural schematic diagram of the support frame of a multi-stage automatic submersible pump that can achieve low water level startup and low remaining water level proposed by the present utility model.

[0030] In the figure: 1, submersible pump main body; 2, water wave switch; 3, power plug; 4, outer shell; 5, motor; 6, support frame; 7, low suction base; 8, filter base; 9, impeller; 10, flow guide disc; 11, water flow channel; 12, water outlet; 13, inlet groove; 14, water inlet; 15, first annular groove; 16, second annular groove; 17, connection groove; 18, limit card slot; 19, stainless steel filter net; 20, limit rib; 21, support frame; 22, support plate; 23, fixed column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, in combination with the drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0032] Embodiment 1

[0033] Referring to Figures 1-5 , a multi-stage automatic submersible pump, including: a submersible pump main body 1, a water wave switch 2, and a series of auxiliary components.

[0034] The submersible pump main body 1 is composed of a housing 4. A low suction base 7 is fixedly installed at the bottom of the housing 4. The low suction base 7 not only plays a supporting role, but also effectively promotes the smooth entry of water through the design of the water inlet groove 13 and the water inlet 14 at its bottom.

[0035] Inside the submersible pump main body 1, a motor 5 is fixedly installed through a support frame 6. The output shaft of the motor 5 is connected to at least one impeller 9. The rotation of the impeller 9 drives the water flow to move to complete the pumping. In order to optimize the water flow path, a guide disk 10 is also fixedly arranged inside the housing 4. The guide disk 10 is located between the impeller 9 and the motor 5 to ensure that the water flow can smoothly enter the water flow channel 11 at the top and finally be discharged through the water outlet 12.

[0036] In order to achieve the function of starting at a low water level, this embodiment adopts a water wave switch 2. The switch is electrically connected to the submersible pump main body 1 through a wire and can detect the water level change and control the start and stop of the submersible pump. When the water level reaches the preset start water level, the water wave switch 2 is triggered and the submersible pump starts to work; when the water level drops to the set low remaining water level, the submersible pump automatically stops, thus avoiding dry burning and damage.

[0037] In this embodiment, the design of a filter base 8 is further added at the bottom of the low suction base 7. The filter base 8 is located below the water inlet 14 and a stainless steel filter net 19 is installed inside to filter impurities in the water flow entering the submersible pump and protect the internal components of the submersible pump from damage. For the convenience of cleaning, a plurality of limiting ribs 20 are designed on the outer wall of the filter base 8. These limiting ribs 20 cooperate with the limiting card slots 18 at the bottom of the low suction base 7 to achieve quick disassembly and installation.

[0038] To enhance the stability and water absorption efficiency of the submersible pump in a low water level environment, the design of the support frame 21 is introduced in this embodiment. The support frame 21 is sleeved on the outer wall of the low suction base 7 and is slidably connected to the first annular groove 15 of the low suction base 7 through a plurality of fixing columns 23. At the same time, a plurality of support plates 22 are fixed to the outer wall of the support frame 21, which can provide additional support for the submersible pump body 1. In addition, the low suction base 7 is also provided with a second annular groove 16 and a plurality of connecting grooves 17. These designs allow users to adjust the height of the support frame 21 according to actual needs, thereby increasing the gap at the bottom of the low suction base 7, further improving the water absorption efficiency. At the same time, this design enables the submersible pump to meet the standing support requirements in different environments, and can prevent the bottom of the low suction base 7 from being blocked by the accumulated debris below, with strong adaptability.

[0039] This application can be used in the technical field of submersible pumps, and can also be used in other fields applicable to this application.

[0040] Embodiment 2

[0041] Reference Figure 1 、 4 、5, on the basis of Embodiment 1, it is improved: A multi-stage automatic submersible pump that can achieve low water level startup and low remaining water level, which is applied to the technical field of submersible pumps;

[0042] In this embodiment, the structure of the support frame 21 is further optimized. The support frame 21 is composed of a plurality of support rings and support rods. There are gaps between the support rings to ensure that water flow can pass through smoothly. At the same time, the support rods are fixedly connected to each support ring to maintain the overall stability of the support frame 21.

[0043] To further improve the user experience, the installation method of the filter base 8 is improved in this embodiment. Specifically, one side of a plurality of limiting ribs 20 is designed as an inclined surface. This design enables users to more easily push the filter base 8 into the limiting card slot 18 during installation, realizing quick installation.

[0044] Finally, to ensure the normal operation of the submersible pump, a power plug 3 is electrically connected to the top of the submersible pump body 1 through a wire. This plug can cooperate with an external power supply to provide stable power supply for the submersible pump. When using, the user only needs to insert the power plug 3 into a suitable external power socket to start the submersible pump for work.

[0045] However, as is well known to those skilled in the art, the working principles and wiring methods of the water wave switch 2 and the motor 5 are common knowledge, and they both belong to conventional means or well-known common sense, so they will not be elaborated here. Those skilled in the art can make arbitrary selections according to their needs or convenience.

[0046] The working principle and usage process of this technical solution are as follows: When in use, first place this multi-stage submersible pump in a container. As the water in the container gradually increases, when the water level reaches the working water level line of the water wave switch 2 by 20 mm, the motor 5 in the pump will start accordingly. The motor 5 will drive at least one impeller 9 to rotate within the guide disk 10. The rotation of the impeller 9 will generate a huge centrifugal force to suck water into the pump from the periphery of the low-suction base 7. The external water flow will enter the filter base 8 through multiple water inlet grooves 13 at the bottom of the low-suction base 7. Since the filter base 8 is formed by plastic coating a stainless steel filter net 19 into the corresponding base by injection molding, there will be no excessive impurities in the water entering the water inlet 14. At this time, under the centrifugal force of the motor 5 and at least one impeller 9, the potential energy of the water changes. The water enters the water flow channel 11 through guide components such as the guide disk 10 and the support frame 6 on the inner side of the pump body, and then is discharged from the water outlet 12. In this way, a conversion or work of the liquid from low potential energy to high potential energy is completed. By working in this cycle, the water in the container can be continuously pumped out until the water level in the container is pumped down to less than 1 mm. During the use of this submersible pump, considering the special working environment and properties of the filter base 8, the user needs to clean it in time. Since the filter base 8 is rotationally snapped into the limit card slot 18 in the low-suction base 7 through multiple inclined limit ribs 20 at corresponding positions, when cleaning is required, only rotate the filter base 8 in the opposite direction to remove it from the bottom of the low-suction base 7 to complete the cleaning. When this submersible pump is in use, the support frame 21 can be engaged with the first annular groove 15 on the outer wall of the low-suction base 7 through multiple fixing columns 23. At this time, multiple support plates 22 on the outer wall of the support frame 21 can provide additional support for the submersible pump. When the user rotates the support frame 21 and makes the fixing columns 23 move and engage in the second annular groove 16, the support frame 21 can lift the height of the submersible pump through multiple support plates 22, increasing the water inlet space at its bottom to avoid the reduction of the water inlet space caused by environmental or container bottom siltation, and improving its pumping efficiency.

[0047] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A multi-stage automatic submersible pump that can achieve low water level start-up and low remaining water level, characterized in that, Including: A submersible pump main body (1), the submersible pump main body (1) includes a housing (4), a low-suction base (7) is fixedly installed at the bottom end of the housing (4), the low-suction base (7) is used to support the submersible pump main body (1), a plurality of water inlet grooves (13) are opened at the bottom of the low-suction base (7), a water inlet (14) is opened at the bottom of the low-suction base (7), and the water inlet grooves (13) and the water inlet (14) cooperate to facilitate the entry of water flow; It further includes a motor (5), a support frame (6) is fixedly installed inside the housing (4), the housing (4) is fixedly connected to the motor (5) through the support frame (6), at least one impeller (9) is fixedly installed at one end of the output shaft of the motor (5), and the impeller (9) is used to drive and pump the water flow; It further includes a water outlet (12), the water outlet (12) is opened at the top of the housing (4), a water flow channel (11) is opened inside the housing (4), the water flow channel (11) is communicated with the water outlet (12), a guide disk (10) is fixedly installed inside the housing (4), the guide disk (10) is located between the impeller (9) and the motor (5), and the guide disk (10) is used to guide the water flow into the water flow channel (11); It further includes a water wave switch (2), the water wave switch (2) is electrically connected to the submersible pump main body (1) through a wire, and the water wave switch (2) is used to detect the water level.

2. The multi-stage automatic submersible pump according to claim 1, which can achieve low water level start-up and low remaining water level, is characterized in that, A filter base (8) is arranged at the bottom end of the submersible pump main body (1), the filter base (8) is located below the water inlet (14), a stainless steel filter screen (19) is fixedly installed inside the filter base (8), and the stainless steel filter screen (19) is used to filter the water flow entering the water inlet (14).

3. A multi-stage automatic submersible pump according to claim 2 that can achieve low water level start-up and low remaining water level, characterized in that, A plurality of limiting ribs (20) are fixedly installed on the outer wall of the filter base (8), a plurality of limiting card slots (18) are fixedly installed at the bottom of the low-suction base (7), and the plurality of limiting ribs (20) correspond to and are engaged with the plurality of limiting card slots (18) to facilitate the disassembly and cleaning of the filter base (8).

4. A multi-stage automatic submersible pump according to claim 1, which can achieve low water level start-up and low remaining water level, characterized in that, A support frame (21) is sleeved on the outer wall of the low-suction base (7), a plurality of fixing columns (23) are fixedly installed on the inner wall of the support frame (21), a first annular groove (15) is opened on the outer wall of the low-suction base (7), and the plurality of fixing columns (23) are all slidably connected to the inner wall of the first annular groove (15), and a plurality of support plates (22) are fixedly installed on the outer wall of the support frame (21), and the plurality of support plates (22) are used to assist in supporting the submersible pump main body (1).

5. A multi-stage automatic submersible pump capable of achieving low water level startup and low remaining water level according to claim 4, characterized in that, The outer wall of the low-suction base (7) is provided with a second annular groove (16), the second annular groove (16) is located below the first annular groove (15), and the outer wall of the low-suction base (7) is provided with a plurality of connecting grooves (17). The plurality of connecting grooves (17) correspond to a plurality of fixing columns (23), and the plurality of connecting grooves (17) are all communicated with the first annular groove (15) and the second annular groove (16), and are used to adjust the height of the support frame (21) so as to complete the increase of the gap at the bottom of the low-suction base (7).

6. A multi-stage automatic submersible pump according to claim 5, which can achieve low water level start-up and low remaining water level, characterized in that, The support frame (21) is composed of a plurality of support rings and support rods. There are gaps between the plurality of support rings and they are all fixedly connected to the plurality of support rods, and are used to ensure the smooth passage of water flow.

7. A multi-stage automatic submersible pump according to claim 3 that can achieve low water level start-up and low remaining water level, characterized in that, One side of each of the plurality of limiting ribs (20) is provided with an inclined surface, which is used to quickly install the filter base (8).

8. A multi-stage automatic submersible pump according to claim 1, which can achieve low water level start-up and low remaining water level, characterized in that, The top of the submersible pump body (1) is electrically connected with a power plug (3) through a wire. The power plug (3) cooperates with an external power source to complete the power supply to the submersible pump body (1).

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