Submerged pump with sheath

Abstract

The utility model discloses a submerged pump with a sheath, and relates to the technical field of submerged pumps. The device comprises a bottom plate and further comprises a bearing seat arranged at the top of the bottom plate, a motor support is arranged at the top of the bearing seat, and a motor is arranged at the top of the motor support. Through the arrangement of the protective cap, the positioning sleeve, the mounting sleeve and the connecting ribs, the mounting sleeve is fixedly mounted outside the positioning sleeve through threaded connection during use, so that the purpose that the protective cap connected with the mounting sleeve through the connecting ribs is positioned and stably mounted on the outer side of the filter casing below the output end of the pump can be achieved; when the submerged pump is placed below the liquid level, the filter cover is protected through the protective cap, so that the filter cover is prevented from being directly contacted with the bottom and collided to cause deformation and damage, and the filter cover is prevented from being inserted into impurities possibly existing below the liquid level to cause blockage. Therefore, the input end of the submerged pump and the filter casing are protected so as to ensure that the submerged pump normally operates under the liquid level.

Description

Technical Field

[0001] This utility model belongs to the field of submersible pump technology, and in particular relates to a submersible pump with a protective sleeve. Background Technology

[0002] A submersible pump is a positive pressure vertical pump that operates below the surface of a liquid. Because its working part is immersed in the liquid, it can be started without priming or vacuuming. Due to its high efficiency, energy saving, low noise, maintenance-free operation, and high safety performance, it is widely used in industries such as petroleum, chemical, pharmaceutical, papermaking, metallurgy, and wastewater treatment.

[0003] A submersible pump with a protective sleeve, as disclosed in utility model patent application CN218293883U, includes: an upper column tube and a lower column tube. A guide bearing body is provided between the upper and lower column tubes, and a guide bearing is provided inside the guide bearing body. A pump shaft is provided inside the upper and lower column tubes, and the guide bearing cooperates with the pump shaft. An impeller is fixed to the lower end of the pump shaft by an impeller nut. The impeller is located inside the pump body, and a pump cover is provided on the upper side of the impeller. The pump cover is located between the pump body and the lower column tube. The lower column tube is connected to the pump body by bolts and limits and fixes the pump cover. A lower shaft sleeve and a lower protective sleeve are provided between the pump cover and the shaft. The lower shaft sleeve is tightly attached to the pump shaft, and the lower protective sleeve is tightly attached to the lower shaft sleeve. A positioning groove is provided on the lower protective sleeve, and a positioning card is provided in the positioning groove. The positioning card is connected and fixed to the pump cover by bolts. However, during the application of this technical solution, when the submersible pump is lowered to the liquid level for operation, the filter cover installed at the pump input end is prone to being damaged by impact or blocked by impurities in the liquid level. There is a technical problem that the filter cover installed at the liquid filtration end of the submersible pump cannot protect the submersible pump from normal and safe operation at the liquid level. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a submersible pump with a protective sleeve, which can effectively solve the problems of the existing technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a submersible pump with a protective sleeve, comprising a base plate, and further comprising: a bearing seat at the top of the base plate, a motor support at the top of the bearing seat, a motor at the top of the motor support, a coupling at the output end of the motor, a connecting pipe at the bottom of the base plate, a pump unit at the bottom of the connecting pipe, a filter cover at the input end of the pump unit, an elbow at the output end of the pump unit, a discharge pipe at the top of the elbow, the top end of the discharge pipe penetrating one side of the interior of the base plate, an outlet flange at the top end of the discharge pipe, a protective cap at the bottom of the pump unit, a positioning sleeve at the outer side of the bottom input end of the pump unit, connecting ribs at the top edge of the protective cap, mounting sleeves between the tops of the connecting ribs, and an isolation protection component at the outer side of the connecting pipe between the bottom of the base plate and the top of the pump unit.

[0007] Furthermore, the mounting sleeve is fitted onto the outside of the positioning sleeve, the inner side of the mounting sleeve is provided with an internal thread, and the outer side of the positioning sleeve is provided with an external thread that mates with the internal thread.

[0008] Furthermore, the connecting ribs are provided in four groups, and the connecting ribs are arranged at equal intervals at the edge of the top of the protective cap.

[0009] Furthermore, the output end of the motor is connected to the pump shaft via a coupling, and the elbow is connected to the liquid outlet pipe.

[0010] Furthermore, the isolation and protection assembly includes a protective plate, which is disposed on the outside of the pipe between the bottom of the base plate and the top of the pump. Assembly plates are disposed on both sides of the protective plate, and end plates are disposed at both ends of the protective plate. A first sealing gasket is disposed at one end of the end plate, and a second sealing gasket is disposed at one end of the assembly plate. A connecting through hole is disposed inside the assembly plate, and a connecting bolt passes through the connecting through hole. A fastening nut is disposed at the rear end of the connecting bolt.

[0011] Furthermore, the protective plate is semi-circular, the end plate and the first sealing gasket are semi-circular, and the connecting perforations are arranged at equal intervals inside the assembly plate.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model is equipped with a protective cap, a positioning sleeve, an installation sleeve, and a connecting rib. During use, the installation sleeve is installed and fixed to the outside of the positioning sleeve through a threaded connection. This achieves the purpose of positioning and securing the protective cap, which is connected to the installation sleeve through the connecting rib, to the outside of the filter cover below the pump output end. When the submersible pump is lowered to the liquid level, the protective cap protects the filter cover to prevent it from directly contacting the bottom and causing deformation or damage, and to prevent the filter cover from being inserted into impurities that may be present below the liquid level and causing blockage. Thus, it achieves the effect of protecting the submersible pump input end and the filter cover to ensure the normal operation of the submersible pump at the liquid level.

[0014] 2. This utility model features an isolation and protection component installed on the outside of the connecting pipe between the bottom of the base plate and the top of the pump. During use, the protective plate is attached to the outside of the connecting pipe between the base plate and the pump, and the connecting holes are aligned with the assembly plate. Then, the connecting bolts are passed through the connecting holes, and the fastening nuts are tightened. Simultaneously, the end plate is used to limit and stabilize the protective plate from the end, thus achieving the purpose of securely installing the protective plate on the outside of the connecting pipe to isolate and protect it and the shaft pump connection. Furthermore, the first and second sealing gaskets seal the contact surfaces between the end plate and the submersible pump, as well as the mating surfaces of the assembly plate, ensuring the sealing effect of the component. This design is highly feasible. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial explosion diagram of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the protective cap of this utility model;

[0019] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Electric motor; 2. Motor support; 3. Bearing housing; 4. Base plate; 5. Protective plate; 6. Pump; 7. Protective cap; 8. Filter cover; 9. Elbow; 10. Discharge pipe; 11. Outlet flange; 12. Coupling; 13. Connecting pipe; 14. Positioning sleeve; 15. Fastening nut; 16. Mounting sleeve; 17. Connecting rib; 18. Connecting bolt; 19. End plate; 20. First sealing gasket; 21. Second sealing gasket; 22. Connecting perforation; 23. Assembly plate. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figure 1-4 As shown, this utility model is a submersible pump with a protective sleeve, including a base plate 4, and further including: a bearing seat 3 provided on the top of the base plate 4, a motor support 2 provided on the top of the bearing seat 3, a motor 1 provided on the top of the motor support 2, a coupling 12 provided at the output end of the motor 1, the output end of the motor 1 being connected to the pump shaft through the coupling 12, a connecting pipe 13 provided at the bottom of the base plate 4, and a pump 6 provided at the bottom of the connecting pipe 13. After the submersible pump is lowered to the liquid level, the motor 1 is started to drive the pump shaft to rotate through the coupling 12. When the shaft rotates, it drives the impeller inside the pump 6 to rotate. The input end of the pump 6 is equipped with a filter cover 8, and the output end of the pump 6 is equipped with an elbow 9. The top of the elbow 9 is equipped with a liquid outlet pipe 10, which is connected to the liquid outlet pipe 10. The top end of the liquid outlet pipe 10 penetrates one side of the bottom plate 4, and the top end of the liquid outlet pipe 10 is equipped with an outlet flange 11. When the impeller inside the pump 6 is driven to rotate, liquid is drawn in through the input end and delivered to the liquid outlet pipe 10 through the elbow 9 at the input end. At the same time, the input liquid is filtered by the filter cover 8.

[0024] As a further implementation of this embodiment, such as Figure 1 , Figure 2 and Figure 3As shown, a protective cap 7 is provided at the bottom of the pump 6, and a positioning sleeve 14 is provided on the outer side of the bottom input end of the pump 6. A connecting rib 17 is provided at the top edge of the protective cap 7. There are four sets of connecting ribs 17, which are arranged at equal intervals at the top edge of the protective cap 7. An installation sleeve 16 is provided between the top of the connecting ribs 17. The installation sleeve 16 is fitted onto the outer side of the positioning sleeve 14. The inner side of the installation sleeve 16 is provided with an internal thread, and the outer side of the positioning sleeve 14 is provided with an external thread that matches the internal thread. By installing and fixing the installation sleeve 16 to the outside of the positioning sleeve 14 through the threaded connection, the protective cap 7, which is connected to the installation sleeve 16 through the connecting ribs 17, is positioned and securely installed on the outside of the filter cover 8 below the output end of the pump 6. During the process of lowering the submersible pump, the protective cap 7 is used to protect the filter cover 8 to prevent the filter cover 8 from directly touching the bottom and causing deformation and damage, and to prevent the filter cover 8 from being inserted into impurities that may exist below the liquid level and causing blockage. This achieves the effect of protecting the input end of the submersible pump and the filter cover 8 to ensure that the submersible pump operates normally at the liquid level.

[0025] When in use, the mounting sleeve 16 is installed and fixed on the outside of the positioning sleeve 14 by means of threaded connection. In this way, the protective cap 7, which is connected to the mounting sleeve 16 by the connecting rib 17, can be positioned and securely installed on the outside of the filter cover 8 below the output end of the pump 6. When the submersible pump is lowered to the liquid level, the filter cover 8 is protected by the protective cap 7.

[0026] As a further implementation of this embodiment, such as Figure 1 , Figure 2 and Figure 4 As shown, an isolation and protection assembly is provided on the outside of the connecting pipe 13 between the bottom of the base plate 4 and the top of the pump 6. The isolation and protection assembly includes a semi-circular protective plate 5. The protective plate 5 is located on the outside of the connecting pipe 13 between the bottom of the base plate 4 and the top of the pump 6. Assembly plates 23 are provided on both sides of the protective plate 5. The assembly plate 23 has connecting holes 22 inside, which are arranged at equal intervals inside the assembly plate 23. Connecting bolts 18 pass through the connecting holes 22. A fastening nut 15 is provided at the rear end of the connecting bolt 18. Before using the submersible pump, the protective plate 5 is covered on the outside of the connecting pipe 13 between the base plate 4 and the pump 6, and the assembly plate 23 is aligned to connect the pipe. Align the through holes 22 one by one, then insert the connecting bolts 18 through the through holes 22 and tighten the fastening nuts 15. At the same time, use the end plate 19 to limit and stabilize the guard plate 5 from the end. This achieves the purpose of firmly installing the guard plate 5 on the outside of the pipe 13 and isolating and protecting it and the shaft pump connection. The guard plate 5 is provided with semi-circular end plates 19 at both ends. One end of the end plate 19 is provided with a semi-circular first sealing gasket 20, and one end of the assembly plate 23 is provided with a second sealing gasket 21. The first sealing gasket 20 and the second sealing gasket 21 are used to seal the contact surface between the end plate 19 and the submersible pump and the mating surface of the assembly plate 23 to ensure the sealing effect of the components.

[0027] Working principle: When using the submersible pump, firstly, the protective plate 5 is placed over the outside of the connecting pipe 13 between the base plate 4 and the pump 6, and the connecting holes 22 are aligned with the assembly plate 23. Then, the connecting bolts 18 are inserted through the connecting holes 22 and the fastening nuts 15 are tightened. At the same time, the end plate 19 is used to limit and stabilize the protective plate 5 from the end, thus firmly installing the protective plate 5 on the outside of the connecting pipe 13 to isolate and protect it and the shaft pump connection. At the same time, the first sealing gasket 20 and the second sealing gasket 21 are used to seal the contact surface between the end plate 19 and the submersible pump and the mating surface of the assembly plate 23. Finally, the mounting sleeve 16 is installed and fixed by threaded connection. The protective cap 7, connected to the mounting sleeve 16 via the connecting rib 17, is fixed outside the positioning sleeve 14, thus securing it firmly to the outside of the filter cover 8 below the output end of the pump 6. The submersible pump can then be lowered to the liquid level for operation. Simultaneously, the filter cover 8 is protected against impact and blockage by the protective cap 7. After the submersible pump is lowered to the liquid level, the motor 1 is started and the pump shaft is driven to rotate via the coupling 12. When the pump shaft rotates, it drives the impeller inside the pump 6 to rotate, drawing liquid in through the input end and delivering it to the outlet pipe 10 through the elbow 9 set at the input end, thereby transferring the liquid. At the same time, the filter cover 8 filters the input liquid.

[0028] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall fall within the protection scope of the present utility model.

Claims

1. A submersible pump with a sheath, comprising a base plate (4), characterized in that, Also includes: The base plate (4) is provided with a bearing seat (3) at the top, a motor support (2) is provided at the top of the bearing seat (3), a motor (1) is provided at the top of the motor support (2), a coupling (12) is provided at the output end of the motor (1), a connecting pipe (13) is provided at the bottom of the base plate (4), a pump (6) is provided at the bottom of the connecting pipe (13), a filter cover (8) is provided at the input end of the pump (6), an elbow (9) is provided at the output end of the pump (6), and an outlet pipe (1) is provided at the top of the elbow (9). 0), the top end of the outlet pipe (10) penetrates one side of the bottom plate (4), the top end of the outlet pipe (10) is provided with an outlet flange (11), the bottom of the pump (6) is provided with a protective cap (7), the outer side of the bottom input end of the pump (6) is provided with a positioning sleeve (14), the edge of the top of the protective cap (7) is provided with a connecting rib (17), the top of the connecting rib (17) is provided with an installation sleeve (16), and the outer side of the pipe (13) between the bottom of the bottom plate (4) and the top of the pump (6) is provided with an isolation protection component.

2. A submersible pump with a sheath according to claim 1, characterized in that, The mounting sleeve (16) is fitted onto the outside of the positioning sleeve (14). The inner side of the mounting sleeve (16) is provided with an internal thread, and the outer side of the positioning sleeve (14) is provided with an external thread that mates with the internal thread.

3. A submersible pump with a sheath according to claim 1, characterized in that, The connecting ribs (17) are provided in four groups, and the connecting ribs (17) are arranged at equal intervals at the top edge of the protective cap (7).

4. A submersible pump with a sheath according to claim 1, characterized in that, The output end of the motor (1) is connected to the pump shaft via a coupling (12), and the elbow (9) is connected to the outlet pipe (10).

5. A submersible pump with a sheath according to claim 1, characterized in that, The isolation protection assembly includes a guard plate (5), which is located outside the pipe (13) between the bottom of the base plate (4) and the top of the pump (6). Assembly plates (23) are provided on both sides of the guard plate (5), and end plates (19) are provided at both ends of the guard plate (5). A first sealing gasket (20) is provided at one end of the end plate (19), and a second sealing gasket (21) is provided at one end of the assembly plate (23). A connecting through hole (22) is provided inside the assembly plate (23), and a connecting bolt (18) passes through the connecting through hole (22). A fastening nut (15) is provided at the rear end of the connecting bolt (18).

6. A submersible pump with a sheath according to claim 5, characterized in that, The guard plate (5) is semi-circular, the end plate (19) and the first sealing gasket (20) are semi-circular, and the connecting holes (22) are arranged at equal intervals inside the assembly plate (23).

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