Highly stable submersible pump

Abstract

The application relates to a high-stability submersible pump which comprises a pump body, the pump body comprising a driving part, a water inlet section and an impeller part, the water inlet section being located between the driving part and the impeller part, the driving part being provided with a driving rod, the driving rod penetrating through the water inlet section, the impeller part being provided with a drainage impeller, and the driving rod being connected with the drainage impeller; the impeller part is provided with a fixing plate, the fixing plate being located on the side of the impeller part close to the water inlet section, the fixing plate being provided with a communication hole, the communication hole penetrating through the fixing plate, the water inlet section being provided with a filter plate, the filter plate rotating on the water inlet section, the rotating axis of the filter plate being consistent with the rotating axis of the driving rod, the filter plate being provided with a filter hole, the filter hole penetrating through the filter plate, and the filter hole being communicated with the communication hole to form a liquid inlet hole. The fixing plate and the filter plate are arranged, the size of the liquid inlet hole is adjusted through the rotation of the filter plate, the filter plate is suitable for different application scenes, and the filtering effect and the application range of the pump body are improved.

Description

Technical Field

[0001] This application relates to the field of submersible pumps, and more particularly to a highly stable submersible pump. Background Technology

[0002] A submersible pump is a water-lifting device that integrates the motor and pump body into one unit and operates completely submerged in water. It is mainly used for deep well water extraction, farmland irrigation, industrial drainage and other fields, and features small size, high efficiency and strong adaptability.

[0003] See Chinese utility patent CN215293028U, which discloses a horizontal submersible pump for mine drainage, including a pump body and a filter assembly for covering the pump body. The filter assembly includes a filter screen covering the pump body and a mounting frame disposed between the filter screen and the pump body. Several mounting frames are provided and are evenly spaced along the length of the pump body. Each mounting frame includes an inner ring that fits and supports the pump body, an outer ring located inside the filter screen and supporting the filter screen, and several support rods for connecting the inner ring and the outer ring respectively.

[0004] In practical use, different water quality environments have different filtration requirements for submersible pump filter components. When changing the water quality environment, the filter components need to be replaced, which is inconvenient and needs to be improved. Summary of the Invention

[0005] To facilitate the use of submersible pumps in different water quality environments, this application provides a highly stable submersible pump.

[0006] This application provides a high-stability submersible pump, which adopts the following technical solution:

[0007] A high-stability submersible pump includes a pump body, which comprises a drive unit, an inlet section, and an impeller section. The inlet section is located between the drive unit and the impeller section. The drive unit has a drive rod that passes through the inlet section. The impeller section has a drainage impeller, and the drive rod is connected to the drainage impeller. The impeller section has a fixing plate located on the side of the impeller section near the inlet section. The fixing plate has a connecting hole that passes through the fixing plate. The inlet section has a filter plate that rotates within the inlet section. The rotation axis of the filter plate is aligned with the rotation axis of the drive rod. The filter plate has filter holes that pass through the filter plate and connect with the connecting hole to form a liquid inlet.

[0008] By adopting the above technical solution, in actual use, the existing submersible pump filter components are not easy to replace and are relatively ineffective in dealing with different water qualities and different filtration needs. Therefore, a fixed plate and a filter plate are set up, and the size of the liquid inlet hole is adjusted by rotating the filter plate, so as to be suitable for different application scenarios, improve the filtration effect and the applicability.

[0009] Optionally, the water inlet section is provided with a limiting member that moves along the axis of the drive rod; when the drive rod rotates, the limiting member moves toward the filter plate, and the limiting member is used to connect to the filter plate and drive the filter plate to rotate.

[0010] By adopting the above technical solution, when the filter plate is accidentally rotated or rotated excessively, causing the connecting hole and the filter hole to become misaligned, if the pump body is turned on, the liquid will have difficulty being driven by the drain impeller, causing the drain impeller to spin idly and easily damage the components. Therefore, a limiting component is set. When the drive rod rotates, the limiting component connects to the filter plate and drives the filter plate to rotate and fix its position, thereby making the filter hole connect with the connecting hole, which facilitates the submersible pump water delivery operation.

[0011] Optionally, the drive rod has a loosely threaded section, and the limiting member includes a limiting plate threaded to the loosely threaded section. The limiting plate has a locking block located on the side of the limiting plate near the filter plate. The filter plate has an annular groove located on the side of the filter plate near the limiting plate. When the limiting plate disengages from the loosely threaded section, the locking block engages with the annular groove. The bottom of the annular groove has abutment blocks, with multiple abutment blocks arranged circumferentially along the annular groove. Each abutment block has a contact surface. At the end of the contact block away from the bottom of the annular groove, the contact surface extends downward at an angle close to the bottom of the annular groove, and the contact surface is used to abut the snap-fit ​​block; when the filter hole is connected to the connecting hole, when the drive rod rotates and drives the limiting plate to move, the snap-fit ​​block is embedded in the annular groove; when the filter hole and the connecting hole are misaligned, the drive rod rotates and drives the limiting plate to move towards the filter plate, at which time the snap-fit ​​block abuts the contact surface, the limiting plate moves towards the filter plate and causes the filter plate to rotate to the filter hole connected to the connecting hole.

[0012] By adopting the above technical solution, a loosely threaded section is set, and because the limiting member moves along the axis of the drive rod, when the drive rod rotates, the limiting plate moves towards the filter plate. If the filter hole and the connecting hole are in a connected state at this time, the locking block moves into the annular groove, so the movement of the limiting plate at this time is difficult to drive the filter plate to rotate. If the filter hole and the connecting hole are misaligned at this time, the movement of the limiting plate causes the locking block to abut against the contact surface. As the limiting plate continues to move, the contact block is forced to rotate the filter plate. When the locking block disengages from the contact surface, the connecting hole and the filter hole are connected. In this way, the situation where the liquid inlet is closed due to accident or negligence is reduced, and the stability of the submersible pump operation is improved.

[0013] Optionally, the snap-fit ​​block has a snap-fit ​​surface located at one end of the snap-fit ​​block near the filter plate, the snap-fit ​​surface being parallel to the contact surface, and the snap-fit ​​surface being used to contact the contact surface.

[0014] By adopting the above technical solution, a snap-fit ​​surface is set up, which abuts against the contact surface, reducing the wear of the snap-fit ​​block and facilitating the control of the filter plate rotation through the contact of the snap-fit ​​block.

[0015] Optionally, the water inlet section is provided with a sleeve, the drive rod passes through the sleeve, the sleeve is provided with a connecting spring, the connecting spring is located at one end of the sleeve near the limiting plate, the connecting spring is connected to the limiting plate, and the elastic force of the connecting spring restricts the limiting plate from disengaging from the loosely threaded section.

[0016] By adopting the above technical solution, a connecting spring is set, and the elasticity of the connecting spring is used to limit the limit plate from disengaging from the loosely threaded section, thereby facilitating the reset of the limit plate after it moves.

[0017] Optionally, the sleeve is provided with a positioning rod, the length direction of which is parallel to the axial direction of the drive rod, the positioning rod passes through the limiting plate, and the positioning rod is used to limit the rotation of the limiting plate.

[0018] By adopting the above technical solution, a positioning rod is set, which passes through the limiting rod to restrict the rotation of the limiting plate, thereby facilitating the control of the positioning rod's movement via the drive rod.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. A fixed plate and a filter plate are set up. The size of the liquid inlet hole can be adjusted by rotating the filter plate, so as to be suitable for different application scenarios, improve the filtration effect of the pump body and its applicability;

[0021] 2. A loosely threaded section is provided. When the drive rod rotates, the limiting plate moves towards the filter plate. If the filter hole and the connecting hole are connected at this time, the locking block moves into the annular groove, so the movement of the limiting plate is unlikely to drive the filter plate to rotate. If the filter hole and the connecting hole are misaligned at this time, the movement of the limiting plate causes the locking block to abut against the contact surface. As the limiting plate continues to move, the contact block is forced to rotate the filter plate. When the locking block disengages from the contact surface, the connecting hole and the filter hole are connected. In this way, the possibility of the inlet hole closing due to accident or negligence is reduced, and the stability of the submersible pump operation is improved.

[0022] 3. A snap-fit ​​surface is provided, which abuts against the contact surface to reduce wear on the snap-fit ​​block and facilitates control of the filter plate rotation through the contact of the snap-fit ​​block. Attached Figure Description

[0023] Figure 1 This is an overall schematic diagram of an embodiment.

[0024] Figure 2 This is a partial schematic diagram of the water intake section.

[0025] Figure 3 This is a schematic diagram of the filter plate as a whole.

[0026] Figure 4 This is a schematic diagram of the limit plate.

[0027] Explanation of reference numerals in the attached drawings: 1. Pump body; 11. Drive unit; 12. Inlet section; 13. Impeller; 2. Drive rod; 3. Positioning rod; 4. Fixing plate; 5. Connecting hole; 6. Filter plate; 7. Filter hole; 8. Sleeve; 9. Connecting spring; 10. Annular groove; 14. Abutting block; 15. Abutting surface; 16. Limiting component; 17. Limiting plate; 18. Unthreaded section; 19. Snap-fit ​​block; 20. Snap-fit ​​surface; 21. Liquid inlet hole. Detailed Implementation

[0028] The present application will be further described in detail below with reference to the accompanying drawings.

[0029] This application discloses a highly stable submersible pump. (Refer to...) Figure 1 The pump includes a pump body 1, which comprises a drive unit 11, an inlet section 12, and an impeller section 13. The inlet section 12 is located between the drive unit 11 and the impeller section 13. The drive unit 11 is provided with a drive rod 2, which passes through the inlet section 12. The impeller section 13 is provided with a drainage impeller, and the drive rod 2 is connected to the drainage impeller. In actual use, the drive unit 11 is equipped with a submersible motor, which is used to drive the drive rod 2 to rotate.

[0030] The impeller section 13 is equipped with a fixing plate 4, which is located on the side of the impeller section 13 near the inlet section 12. The fixing plate 4 has a connecting hole 5 that passes through the fixing plate 4. The inlet section 12 is equipped with a filter plate 6, which rotates within the inlet section 12. The rotation axis of the filter plate 6 is consistent with the rotation axis of the drive rod 2. The filter plate 6 has filter holes 7 that pass through the filter plate 6 and connect with the connecting hole 5 to form a liquid inlet hole 21. In actual use, the size of the liquid inlet hole 21 can be adjusted by rotating the filter plate 6, thereby facilitating the filtration of liquids in different water quality environments. Furthermore, since the rotation of the filter hole 7 on the side away from the center has a greater impact than that on the side closer to the center when the filter plate 6 rotates, the diameter of the filter hole 7 can be set to decrease sequentially along the direction closer to the center, and the same applies to the connecting hole 5.

[0031] The inlet section 12 is provided with a sleeve 8, located at the end of the inlet section 12 away from the impeller section 13. The drive rod 2 passes through the sleeve 8, and the sleeve 8 is provided with a connecting spring 9, located at the end of the sleeve 8 near the filter plate 6. The drive rod 2 is provided with a limiting member 16, located at the end of the connecting spring 9 away from the sleeve 8. The limiting member 16 is connected to the connecting spring 9 and is used to move along the axis of the drive rod 2. When the drive rod 2 rotates, the limiting member 16 moves towards the filter plate 6, connecting the filter plate 6 and driving the filter plate 6 to rotate. The elastic force of the connecting spring 9 limits the movement of the limiting member 16 away from the sleeve 8.

[0032] The drive rod 2 has a loosely threaded section 18, which is located at the connection spring 9 on the sleeve 8. The limiting member 16 includes a limiting plate 17, which is threaded to the loosely threaded section 18. The sleeve 8 has a positioning rod 3, the length direction of which is parallel to the axis of the drive rod 2. The positioning rod 3 passes through the limiting plate 17. Due to the limiting effect of the positioning rod 3, when the drive rod 2 rotates, the limiting plate 17 can only move along the axis of the drive rod 2 and does not rotate.

[0033] The limiting plate 17 is provided with snap-fit ​​blocks 19, which are located on the side of the limiting plate 17 near the filter plate 6. There are multiple snap-fit ​​blocks 19, which are evenly spaced in a ring. The filter plate 6 is provided with an annular groove 10, which is located on the side of the filter plate 6 near the limiting plate 17. The shape of the annular groove 10 is consistent with the distribution shape of the snap-fit ​​blocks 19, and the annular groove 10 allows the snap-fit ​​blocks 19 to be embedded.

[0034] The bottom of the annular groove 10 is provided with abutment blocks 14, and multiple abutment blocks 14 are provided around the annular groove 10. The abutment blocks 14 are provided with abutment surfaces 15, which are located at the end of the abutment blocks 14 away from the bottom of the annular groove 10. The abutment surfaces 15 extend downward at an angle close to the bottom of the annular groove 10. The snap-fit ​​block 19 is provided with snap-fit ​​surfaces 20, which are located at the end of the snap-fit ​​block 19 close to the filter plate 6. The snap-fit ​​surfaces 20 are parallel to the abutment surfaces 15 and are used to abut against the abutment surfaces 15. When the snap-fit ​​surfaces 20 press against the abutment surfaces 15, the abutment blocks 14 are subjected to force, thereby causing the filter plate 6 to rotate.

[0035] In practical use, the tilt angle of the inclined surface is set to control the rotation amplitude of the filter plate 6 driven by the limiting plate 17. In this application, the size of the liquid inlet hole 21, which is open and achieves the basic water inlet effect, is a preset size. When the filter hole 7 is connected to the connecting hole 5 and is larger than the size of the liquid inlet hole 21, when the drive rod 2 rotates and drives the limiting plate 17 to move, the locking block 19 is embedded in the annular groove 10, and at this time the locking block 19 is misaligned with the abutment block 14.

[0036] When the filter hole 7 is misaligned with the connecting hole 5 or the size of the liquid inlet hole 21 is smaller than the preset size, the drive rod 2 rotates and drives the limiting plate 17 to move closer to the filter plate 6. At this time, the snap block 19 abuts against the contact surface 15, the limiting plate 17 moves closer to the filter plate 6 and causes the filter plate 6 to rotate to the filter hole 7 to connect with the connecting hole 5. When the limiting plate 17 is attached to the filter plate 6, the limiting plate 17 disengages from the loosely threaded section 18.

[0037] The implementation principle of a high-stability submersible pump in this application embodiment is as follows: In actual use, the size of the liquid inlet hole 21 is adjusted by rotating the filter plate 6, so that the pump body 1 can be adapted to different water quality environments.

[0038] When the drive unit 11 is activated and the drive rod 2 rotates, the limiting plate 17 located in the threaded section 18 moves along the axis of the drive rod 2 and toward the filter plate 6 due to the rotation of the drive rod 2. At this time, the connecting spring 9 is in a stretched state.

[0039] When the snap-fit ​​block 19 is inserted into the annular groove 10, if the size of the liquid inlet hole 21 is greater than or equal to the preset size, the snap-fit ​​block 19 and the contact block 14 will be misaligned. When the limiting plate 17 contacts the filter plate 6, the filter plate 6 will not rotate.

[0040] If the inlet hole 21 is closed or the size of the inlet hole 21 is smaller than the preset size, when the locking block 19 is embedded in the annular groove 10, the locking surface 20 abuts against the contact surface 15. As the limiting plate 17 continues to move, the contact block 14 is forced to rotate the filter plate 6, thereby increasing the size of the inlet hole 21, making the pump body 1 more stable in terms of liquid intake and reducing the situation of the drain impeller spinning idly.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-stability submersible pump comprising a pump body (1), characterized in that: The pump body (1) comprises a driving part (11), a water inlet section (12) and an impeller part (13), the water inlet section (12) is located between the driving part (11) and the impeller part (13), the driving part (11) is provided with a driving rod (2), the driving rod (2) passes through the water inlet section (12), the impeller part (13) is provided with a drainage impeller, the driving rod (2) is connected with the drainage impeller; The impeller part (13) is provided with a fixed plate (4), the fixed plate (4) is located on the side of the impeller part (13) close to the water inlet section (12), the fixed plate (4) is provided with a communication hole (5), the communication hole (5) penetrates the fixed plate (4), the water inlet section (12) is provided with a filter plate (6), the filter plate (6) rotates on the water inlet section (12), the rotation axis of the filter plate (6) is consistent with the rotation axis of the driving rod (2), the filter plate (6) is provided with a filter hole (7), the filter hole (7) penetrates the filter plate (6), the filter hole (7) is communicated with the communication hole (5) to form a liquid inlet hole (21); The water inlet section (12) is provided with a limiting piece (16), the limiting piece (16) moves along the axis direction of the driving rod (2); When the driving rod (2) rotates, the limiting piece (16) moves towards the direction close to the filter plate (6), the limiting piece (16) is used for connecting the filter plate (6) and driving the filter plate (6) to rotate; The driving rod (2) is provided with a sparse thread section (18), the limiting piece (16) comprises a limiting plate (17), the limiting plate (17) is threadedly connected to the sparse thread section (18), the limiting plate (17) is provided with a clamping block (19), the clamping block (19) is located on the side of the limiting plate (17) close to the filter plate (6), the filter plate (6) is provided with an annular groove (10), the annular groove (10) is located on the side of the filter plate (6) close to the limiting plate (17), when the limiting plate (17) is separated from the sparse thread section (18), the clamping block (19) is embedded in the annular groove (10); The annular groove (10) is provided with a plurality of abutting blocks (14) along the circumferential direction of the annular groove (10), the abutting blocks (14) are provided with abutting surfaces (15), the abutting surfaces (15) are located on the end of the abutting blocks (14) away from the groove bottom of the annular groove (10), the abutting surfaces (15) extend downwardly and obliquely along the direction close to the groove bottom of the annular groove (10), and the abutting surfaces (15) are used for abutting the clamping block (19); When the filter hole (7) is communicated with the communication hole (5), the driving rod (2) rotates to drive the limiting plate (17) to move, the clamping block (19) is embedded in the annular groove (10), when the filter hole (7) is dislocated from the communication hole (5), the driving rod (2) rotates to drive the limiting plate (17) to move towards the direction close to the filter plate (6), at this time, the clamping block (19) abuts against the abutting surface (15), the limiting plate (17) moves towards the direction close to the filter plate (6) and drives the filter plate (6) to rotate to the position where the filter hole (7) is communicated with the communication hole (5).

2. The high stability submersible pump of claim 1, wherein: The clamping block (19) is provided with a clamping surface (20), which is located at one end of the clamping block (19) close to the filter plate (6), is parallel to the abutting surface (15), and is used for abutting against the abutting surface (15).

3. The high stability submersible pump of claim 1, wherein: The water inlet section (12) is provided with a sleeve (8), the driving rod (2) passes through the sleeve (8), the sleeve (8) is provided with a connecting spring (9), the connecting spring (9) is located at one end of the sleeve (8) close to the limiting plate (17), the connecting spring (9) is connected with the limiting plate (17), and the elastic force of the connecting spring (9) limits the disengagement of the limiting plate (17) from the thread-releasing section (18).

4. The high stability submersible pump of claim 3, wherein: The sleeve (8) is provided with a positioning rod (3), the length direction of the positioning rod (3) is parallel to the axis direction of the driving rod (2), the positioning rod (3) passes through the limiting plate (17), and the positioning rod (3) is used for limiting the rotation of the limiting plate (17).

Images