Water inlet joint for submersible pump

Abstract

The utility model discloses a water inlet section for a submersible pump. The water inlet section comprises a pump body, a first water inlet section and a second water inlet section, an inner thread is formed in the inner side of the bottom end of the pump body, a first water inlet section is detachably connected to the inner thread in a threaded mode, a lug plate is fixed to the inner side of the first water inlet section, and a first filter screen is detachably installed at the lug plate through a fastening bolt. The first water inlet section and the second water inlet section are detachably connected to the bottom end of the first water inlet section in a threaded mode, the connection mode is firm, looseness is effectively prevented, and mounting and dismounting are convenient. The first filter screen is arranged in the first water inlet section, the second filter screen is arranged in the second water inlet section, and the mesh diameter of the second filter screen is larger than that of the first filter screen; water can be doubly filtered, impurities are effectively prevented from entering the pump body, abrasion of parts in the pump body is reduced, and the service life of the pump body is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of submersible pump technology, and in particular relates to a water inlet section for a submersible pump. Background Technology

[0002] In existing submersible pumps, the inlet section is an important component connecting the pump and the inlet pipe, and its structural design has a significant impact on the pump's working efficiency and stability.

[0003] The traditional submersible pump inlet section's filtration structure cannot effectively filter impurities in the water. Once these impurities enter the pump, they will accelerate the wear of internal parts and shorten the pump's lifespan. Moreover, existing inlet sections are prone to loosening during use, making installation and disassembly troublesome when cleaning impurities. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a water inlet section for a submersible pump. A first water inlet section is detachably screwed to the bottom of the pump body, and a second water inlet section is detachably screwed to the bottom of the first water inlet section. This connection method is not only secure and effectively prevents loosening, but also facilitates installation and disassembly. By setting a first filter screen inside the first water inlet section and a second filter screen inside the second water inlet section, with the mesh diameter of the second filter screen being larger than that of the first filter screen, dual filtration of water quality can be achieved, effectively preventing impurities from entering the pump body, reducing wear on internal pump parts, and extending the pump's service life.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A submersible pump inlet section includes a pump body, a first inlet section, and a second inlet section. The pump body has an internal thread on its bottom inner side, where the first inlet section is detachably screwed. An ear plate is fixed to the inner side of the first inlet section, and a first filter screen is detachably installed on the ear plate via fastening bolts. The second inlet section also has an internal thread on its bottom inner side, where it is detachably screwed. An ear plate is fixed to the inner side of the second inlet section, and a second filter screen is detachably installed on the ear plate via fastening bolts. The mesh diameter of the second filter screen is larger than that of the first filter screen. The second inlet section also has an internal thread on its bottom inner side, where an inlet seat is detachably screwed. The side wall of the inlet seat has an inlet hole. The pump is equipped with side-mounted support legs in an "L" shape. A first inlet section is detachably screwed to the bottom of the pump body, and a second inlet section is detachably screwed to the bottom of the first inlet section. This connection method is not only secure and effectively prevents loosening, but also facilitates installation and disassembly. A first filter screen is installed inside the first inlet section, and a second filter screen is installed inside the second inlet section. The mesh diameter of the second filter screen is larger than that of the first filter screen, enabling dual filtration of the water quality. This effectively prevents impurities from entering the pump body, reduces wear on internal parts, and extends the pump's service life. Since the external thread diameters at the upper ends of the second and first inlet sections are equal, it is convenient for either the first or second inlet section to be installed separately at the bottom of the pump body for use with different water qualities.

[0007] Furthermore, sealing rings are provided between the pump body and the first inlet section, between the first inlet section and the second inlet section, and between the second inlet section and the inlet seat. By setting the sealing rings, the sealing performance between the pump body and the first inlet section, between the first inlet section and the second inlet section, and between the second inlet section and the inlet seat is improved, thus preventing water leakage.

[0008] Furthermore, each of the support legs is screwed with an adjusting foot. By setting the adjusting foot, the height of the water inlet seat can be adjusted to be above the silt in the water, thus preventing the silt from directly entering the water inlet seat during the early stage of pumping.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. By detachably screwing the first inlet section to the bottom of the pump body, and detachably screwing the second inlet section to the bottom of the first inlet section, this connection method is not only firm and effectively prevents loosening, but also facilitates installation and disassembly. By setting a first filter screen in the first inlet section and a second filter screen in the second inlet section, with the mesh diameter of the second filter screen being larger than that of the first filter screen, the water quality can be filtered twice, effectively preventing impurities from entering the pump body, reducing wear on internal parts of the pump body, and extending the service life of the pump body. Since the external thread diameters at the upper ends of the second inlet section and the first inlet section are equal, it is convenient for the first or second inlet section to be installed separately at the bottom of the pump body for use, so as to be suitable for pumping different water qualities.

[0011] 2. By setting a sealing ring, the sealing performance between the pump body and the first inlet section, between the first and second inlet sections, and between the second inlet section and the inlet seat is improved, preventing water leakage. By setting an adjusting foot, the height of the inlet seat can be easily adjusted to above the silt in the water, preventing silt from directly entering the inlet seat in the early stage of pumping. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of the first water inlet section of this utility model.

[0014] In the diagram: 1 Pump body, 2 First inlet section, 3 Second inlet section, 4 Inlet seat, 5 Support leg, 6 Adjustable foot, 7 Sealing ring, 8 Ear plate, 9 Fastening bolt, 10 First filter screen. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0016] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0017] See appendix Figure 1-2 As shown, a submersible pump inlet section includes a pump body 1, a first inlet section 2, and a second inlet section 3. The pump body 1 has an internal thread on its bottom inner side, where the first inlet section 2 is detachably screwed. An ear plate 8 is fixed to the inner side of the first inlet section 2, and a first filter screen 10 is detachably installed on the ear plate 8 via a fastening bolt 9. The second inlet section 3 also has an internal thread on its bottom inner side, where it is detachably screwed. An ear plate 8 is fixed to the inner side of the second inlet section 3, and a second filter screen is detachably installed on the ear plate 8 via a fastening bolt 9. The mesh diameter of the second filter screen is larger than that of the first filter screen 10. The second inlet section 3 also has an internal thread on its bottom inner side, where an inlet seat 4 is detachably screwed. The side wall of the inlet seat 4 has an inlet hole, and a... The support leg 5 has an "L"-shaped structure. The first water inlet section 2 is detachably screwed to the bottom of the pump body 1, and the second water inlet section 3 is detachably screwed to the bottom of the first water inlet section 2. This connection method is not only firm and effectively prevents loosening, but also facilitates installation and disassembly. By setting a first filter screen 10 in the first water inlet section 2 and a second filter screen in the second water inlet section 3, the mesh diameter of the second filter screen is larger than that of the first filter screen 10, which can perform double filtration of water quality, effectively preventing impurities from entering the pump body 1, reducing the wear of the internal parts of the pump body 1, and extending the service life of the pump body 1. Since the external thread diameter of the second water inlet section 3 and the first water inlet section 2 is the same, it is convenient for the first water inlet section 2 or the second water inlet section 3 to be installed at the bottom of the pump body 1 for individual use, so as to be suitable for pumping different water qualities.

[0018] A sealing ring 7 is provided between the pump body 1 and the first inlet section 2, between the first inlet section 2 and the second inlet section 3, and between the second inlet section 3 and the inlet seat 4. By setting the sealing ring 7, the sealing performance between the pump body 1 and the first inlet section 2, between the first inlet section 2 and the second inlet section 3, and between the second inlet section 3 and the inlet seat 4 is improved, thus preventing water leakage.

[0019] Each of the support legs 5 is screwed with an adjusting foot 6. By setting the adjusting foot 6, the height of the water inlet seat 4 can be adjusted to be above the silt in the water, so as to prevent the silt from directly entering the water inlet seat 4 in the early stage of pumping.

[0020] Working principle: During pumping, water enters the second inlet section 3 through the inlet hole on the side of the inlet seat 4. After being filtered by the second filter screen, it enters the first inlet section 2 and is filtered again by the first filter screen 10. The filtered water is then pumped out through the pump body 1. The pump body 1 and the first inlet section, as well as the first inlet section 2 and the second inlet section 3, are all connected by threads. This connection method is not only firm and effectively prevents loosening, but also facilitates installation and disassembly. By setting the first filter screen 10 in the first inlet section 2 and the second filter screen in the second inlet section 3, with the mesh diameter of the second filter screen being larger than that of the first filter screen 10, the water can be filtered twice, effectively avoiding impurities. Entering the pump body 1 reduces wear on internal parts and extends the service life of the pump body 1. Since the external thread diameters at the upper ends of the second inlet section 3 and the first inlet section 2 are equal, it is convenient for the first inlet section 2 or the second inlet section 3 to be installed separately at the bottom of the pump body 1 for use in pumping different water qualities. By setting the sealing ring 7, the sealing between the pump body 1 and the first inlet section 2, between the first inlet section 2 and the second inlet section 3, and between the second inlet section 3 and the inlet seat 4 is improved, preventing water leakage. By setting the adjusting foot 6, it is convenient to adjust the height of the inlet seat 4 to above the silt in the water, preventing silt from directly entering the inlet seat 4 in the early stage of pumping.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A water inlet section for a submersible pump, comprising a pump body, a first water inlet section, and a second water inlet section, characterized in that: The pump body has an internal thread on its bottom inner side, and a first water inlet section is detachably screwed to this internal thread. An ear plate is fixed to the inner side of the first water inlet section, and a first filter screen is detachably installed on the ear plate by fastening bolts. The second water inlet section has an internal thread on its bottom inner side, and a second water inlet section is detachably screwed to this internal thread. The diameter of the external threads at the upper ends of the second water inlet section and the first water inlet section are equal. An ear plate is fixed to the inner side of the second water inlet section, and a second filter screen is detachably installed on the ear plate by fastening bolts. The mesh diameter of the second filter screen is larger than that of the first filter screen. The second water inlet section has an internal thread on its bottom inner side, and a water inlet seat is detachably screwed to this internal thread. A water inlet hole is opened on the side wall of the water inlet seat, and a support leg is fixed to the bottom side of the water inlet seat. The support leg has an "L" shaped structure.

2. The inlet joint for a submersible pump according to claim 1, characterized in that: Sealing rings are provided between the pump body and the first inlet section, between the first inlet section and the second inlet section, and between the second inlet section and the inlet seat.

3. The inlet joint for a submersible pump according to claim 1, characterized in that: Each of the outriggers has an adjustable foot screwed to its bottom end.

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