Submersible pump with good waterproof performance

Abstract

The utility model relates to the technical field of submersible pumps, and provides a submersible pump with good waterproof performance, which comprises a chassis and a water inlet, a water inlet is formed in the bottom end of the chassis, a sealing seat is arranged at the top end of the chassis, a motor shell is arranged at the top end of the sealing seat, a cover body is arranged at the top end of the motor shell, and a filtering structure is arranged at the bottom end of the chassis in the water inlet. According to the utility model, the mounting structure is arranged, the water outlet is fixedly connected through the threaded connection formed by the first flange plate, the second flange plate and the bolts, the outer parts of all the components are fixed through the threaded connection formed by the adjacent mounting bumps and the bolts, the fixation is firm, and the sealing rings are arranged between the mounting bumps and the bottoms of the bolts; and moreover, the outer layer of each component is electroplated, and an electroplated layer is produced, so that the purpose of improving the waterproof performance of the submersible pump is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of submersible pumps, in particular to a submersible pump with good waterproof performance. Background Art

[0002] With the continuous use of water resources, the use of water pumps is indispensable, and a type of water pump used for underwater submersible pumps is an important part of it;

[0003] To this end, the patent with publication number CN215860828U discloses a submersible pump, including a submersible pump body, the submersible pump body including an inlet impeller, the inlet impeller is arranged inside the liquid inlet of the submersible pump body, the submersible pump body near one end of the inlet impeller is provided with a pump base in the shape of a trumpet opening, a circular tube is fixed to the outer ring of the liquid inlet of the submersible pump body, a feed wire interface is provided on one side of the circular tube, and the feed wire interface is connected to one end of the feed pipe; a plurality of discharge holes are provided on the circular tube. When completing the normal pumping work, the utility model can also realize the addition of other substances to the material to be pumped to meet other needs such as preventing the occurrence of gas turbidity. The operation process is simple and convenient, avoiding waste of manpower, and the transformation cost is low, reducing the burden on enterprises.

[0004] The submersible pump has a circular tube fixed on the outer ring of the liquid inlet, which is convenient for liquid inlet, but it is difficult to remove impurities contained in the water. Large-mass impurities directly entering may damage the impeller and thus reduce the service life of the submersible pump. Utility Model Content

[0005] The utility model aims to provide a submersible pump with good waterproof performance, so as to solve the defect that the existing submersible pump is difficult to filter the water entering the submersible pump.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a submersible pump with good waterproof performance, comprising a chassis and a water inlet;

[0007] The bottom end of the chassis is provided with a water inlet, the top end of the chassis is provided with a sealing seat, the top end of the sealing seat is provided with a motor housing, the top end of the motor housing is provided with a cover body, and the bottom end of the chassis inside the water inlet is provided with a filtering structure;

[0008] A rotating shaft is arranged at the middle position inside the motor housing, a rotor assembly is arranged on the outer wall of the rotating shaft, a stator assembly is arranged outside the rotor assembly, a cable is arranged at the top of one side of the stator assembly, the cable runs through the bottom end of the cover body, a handle is arranged at the top of the cover body, bearings are arranged on both sides of the outer wall of the rotating shaft away from the rotor assembly, an impeller is arranged inside the bottom chassis of the rotating shaft, a water outlet is opened on one side of the chassis, and sealing structures are arranged on both sides of the outer wall of the rotating shaft inside the water inlet;

[0009] A mounting structure is provided on the side of the sealing structure away from the chassis, and the mounting structure includes a No. 1 flange, a No. 2 flange, a mounting protrusion, a bolt, and a sealing ring. The No. 1 flange is provided on the side of the sealing structure away from the chassis, and a No. 2 flange is provided on one side of the No. 1 flange. The mounting protrusions are evenly provided on both sides of the water inlet and the outside of the sealing seat, and are evenly provided at the bottom end of the bottom cover of the chassis. The bolts are all provided inside the No. 1 flange, the No. 2 flange and the mounting protrusions, and a sealing ring is provided on the mounting protrusion below the top of the bolt, close to the end of the bolt.

[0010] Preferably, the filtering structure includes a filter screen, a sliding protrusion, a mounting groove and a reserved hole, the filter screen is arranged at the bottom end of the internal chassis of the water inlet, the sliding protrusions are evenly arranged on the top of the filter screen, the inner wall of the bottom of the chassis is provided with a mounting groove, and the bottom end of the chassis is provided with a reserved hole.

[0011] Preferably, the sliding protrusion is arranged inside the mounting groove, and the filter screen is rotationally connected to the mounting groove via the sliding protrusion.

[0012] Preferably, the sealing structure includes a sealing base, a spring, a sealing block and a limit plate, the sealing base is arranged on both sides of the outer wall of the internal rotating shaft of the water inlet, the inside of the sealing base is provided with a spring, the side of the spring away from the water inlet is provided with a sealing block, and the side of the sealing block away from the spring is provided with a limit plate.

[0013] Preferably, the sealing base is symmetrically distributed on the outer wall of the internal rotating shaft of the water inlet, and one end of the sealing base close to the spring is fixedly connected to both ends of the water inlet.

[0014] Preferably, the bolts are arranged inside the No. 1 flange and the No. 2 flange, and the No. 1 flange and the No. 2 flange are threadedly connected by the bolts.

[0015] Preferably, the bolts are simultaneously arranged inside adjacent mounting protrusions, and the adjacent mounting protrusions are threadedly connected by the bolts.

[0016] The utility model provides a submersible pump with good waterproof performance, which has the following advantages:

[0017] By providing a mounting structure, the water outlet is fixedly connected through a threaded connection formed by a No. 1 flange and a No. 2 flange and bolts, and the outside of each component is fixed through a threaded connection formed by adjacent mounting protrusions and bolts, and is firmly fixed. A sealing ring is provided between the mounting protrusion and the bottom of the bolt to prevent water penetration, and the outer layer of each component is electroplated to produce an electroplating layer, thereby achieving the purpose of improving the waterproof performance of the submersible pump;

[0018] By providing a filtering structure, a detachable filter screen is provided at the bottom of the chassis to filter the water entering the submersible pump, which can effectively remove some large-mass impurities, thereby preventing these impurities from damaging the impeller and not causing blockage of the water outlet pipe, thereby achieving the purpose of preliminary filtering of the extracted water to protect the impeller and facilitate installation;

[0019] By providing a sealing structure and a mechanical seal inside the sealing seat, the sealing block will be worn after long-term use, but the spring can resist it, and the sealing performance of the structure will not be reduced, thereby achieving the purpose of improving the internal sealing performance of the submersible pump and increasing the service life of the sealing structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0021] Figure 2 It is a side cross-sectional structural schematic diagram of the utility model;

[0022] Figure 3 It is a front view cross-sectional structural schematic diagram of the sealing structure of the utility model;

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 5 It is a partial front view structural schematic diagram of the installation structure of the utility model.

[0025] Explanation of the reference numerals in the figure: 1. chassis; 2. water inlet; 3. sealing seat; 4. motor housing; 5. cover body; 6. filtering structure; 601. filter screen; 602. sliding protrusion; 603. mounting groove; 604. reserved hole; 7. rotating shaft; 8. rotor assembly; 9. stator assembly; 10. cable; 11. handle; 12. bearing; 13. impeller; 14. water outlet; 15. sealing structure; 1501. sealing base; 1502. spring; 1503. sealing block; 1504. limit plate; 16. mounting structure; 1601. flange No. 1; 1602. flange No. 2; 1603. mounting protrusion; 1604. bolt; 1605. sealing ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 The utility model provides a submersible pump with good waterproof performance, which includes a chassis 1 and a water inlet 2.

[0028] Reference Figure 1 , Figure 2 and Figure 4 As shown, a water inlet 2 is provided at the bottom end of the chassis 1, a sealing seat 3 is provided at the top end of the chassis 1, a motor housing 4 is provided at the top end of the sealing seat 3, a cover body 5 is provided at the top end of the motor housing 4, a filter structure 6 is provided at the bottom end of the chassis 1 inside the water inlet 2, the filter structure 6 includes a filter screen 601, a sliding protrusion 602, a mounting groove 603 and a reserved hole 604, the filter screen 601 is provided at the bottom end of the chassis 1 inside the water inlet 2, the sliding protrusions 602 are evenly provided on the top of the filter screen 601, the mounting groove 603 is opened on the inner wall of the bottom of the chassis 1, the reserved hole 604 is opened at the bottom end of the chassis 1, the sliding protrusion 602 is provided inside the mounting groove 603, and the filter screen 601 and the mounting groove 603 are rotatably connected through the sliding protrusion 602.

[0029] The water sucked up from the bottom of the submersible pump during use may contain various impurities, and these impurities directly enter the interior of the submersible pump to pump water, which may collide with the impeller 13. Long-term use may cause damage to the impeller 13, thereby affecting the service life of the submersible pump, thereby increasing the cost of use. By installing a detachable filtering structure 6 at the bottom end of the chassis 1, the extracted liquid is preliminarily filtered, thereby effectively intercepting some impurities.

[0030] Reference Figure 1-3 As shown, a rotating shaft 7 is arranged at the middle position inside the motor housing 4, a rotor assembly 8 is arranged on the outer wall of the rotating shaft 7, a stator assembly 9 is arranged on the outer side of the rotor assembly 8, a cable 10 is arranged at the top of one side of the stator assembly 9, the cable 10 runs through the bottom end of the cover body 5, a handle 11 is arranged at the top of the cover body 5, bearings 12 are arranged on both sides of the outer wall of the rotating shaft 7 away from the rotor assembly 8, an impeller 13 is arranged inside the bottom chassis 1 of the rotating shaft 7, a water outlet 14 is opened on one side of the chassis 1, and a sealing structure 15 is arranged on both sides of the outer wall of the rotating shaft 7 inside the water inlet 2, and the sealing structure 15 includes A sealing base 1501, a spring 1502, a sealing block 1503 and a limiting plate 1504, the sealing base 1501 is arranged on both sides of the outer wall of the internal rotating shaft 7 of the water inlet 2, the inside of the sealing base 1501 is provided with a spring 1502, the side of the spring 1502 away from the water inlet 2 is provided with a sealing block 1503, the side of the sealing block 1503 away from the spring 1502 is provided with a limiting plate 1504, the sealing base 1501 is symmetrically distributed on the outer wall of the internal rotating shaft 7 of the water inlet 2, and the end of the sealing base 1501 close to the spring 1502 is fixedly connected to the two ends of the water inlet 2.

[0031] During the use of the submersible pump, the rotating shaft 7 continuously rotates at a high frequency, and the traditional sealing block may be worn and thus affect the sealing effect of the device. By providing two sets of sealing structures 15 on the outer wall of the rotating shaft 7 inside the water inlet 2, the interior of the submersible pump is mechanically sealed, and the two sets of sealing structures 15 make its sealing more reliable.

[0032] Reference Figure 1 , Figure 2 and Figure 5As shown, a mounting structure 16 is provided on the side of the sealing structure 15 away from the chassis 1, and the mounting structure 16 includes a No. 1 flange 1601, a No. 2 flange 1602, a mounting protrusion 1603, a bolt 1604, and a sealing ring 1605. The No. 1 flange 1601 is provided on the side of the sealing structure 15 away from the chassis 1, and the No. 2 flange 1602 is provided on one side of the No. 1 flange 1601. The mounting protrusions 1603 are evenly arranged on both sides of the outside of the water inlet 2 and the sealing seat 3, and are evenly arranged at the bottom end of the bottom cover 5 of the chassis 1. The bolts 1604 are all arranged at The interior of flange No. 1601, flange No. 2 1602 and mounting protrusion 1603, a sealing ring 1605 is provided at one end of the mounting protrusion 1603 below the top of the bolt 1604 and close to the bolt 1604, the bolt 1604 is provided inside flange No. 1601 and flange No. 2 1602, flange No. 1601 and flange No. 2 1602 are threadedly connected by the bolt 1604, the bolt 1604 is also provided inside the adjacent mounting protrusion 1603, adjacent mounting protrusions 1603 are threadedly connected by the bolt 1604.

[0033] The submersible pump is in water for a long time during use. Poor water resistance may cause corrosion to the outside of the submersible pump, and the fixed installation part requires good sealing performance. Otherwise, water will penetrate into the inside of the submersible pump and affect the safety of the submersible pump. By providing a mounting structure 16 on the outside of the submersible pump and then adding a sealing ring 1605 on the premise of reliable installation, the waterproof performance of the mounting part is enhanced, thereby improving the waterproofness of the submersible pump.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A submersible pump with good waterproof performance, comprising a chassis (1) and a water inlet (2); Features: The bottom end of the chassis (1) is provided with a water inlet (2), the top end of the chassis (1) is provided with a sealing seat (3), the top end of the sealing seat (3) is provided with a motor housing (4), the top end of the motor housing (4) is provided with a cover body (5), and the bottom end of the chassis (1) inside the water inlet (2) is provided with a filtering structure (6); A rotating shaft (7) is arranged at a middle position inside the motor housing (4), a rotor assembly (8) is arranged on the outer wall of the rotating shaft (7), a stator assembly (9) is arranged on the outer side of the rotor assembly (8), a cable (10) is arranged at the top of one side of the stator assembly (9), the cable (10) runs through the bottom end of the cover body (5), a handle (11) is arranged at the top of the cover body (5), bearings (12) are arranged on both sides of the outer wall of the rotating shaft (7) away from the rotor assembly (8), an impeller (13) is arranged inside the bottom chassis (1) of the rotating shaft (7), a water outlet (14) is opened on one side of the chassis (1), and sealing structures (15) are arranged on both sides of the outer wall of the rotating shaft (7) inside the water inlet (2); A mounting structure (16) is provided on a side of the sealing structure (15) away from the chassis (1), and the mounting structure (16) comprises a No. 1 flange (1601), a No. 2 flange (1602), a mounting protrusion (1603), a bolt (1604), and a sealing ring (1605). The No. 1 flange (1601) is provided on a side of the sealing structure (15) away from the chassis (1), and the No. 2 flange (1602) is provided on one side of the No. 1 flange (1601). The mounting protrusions (1603) are evenly arranged on both sides of the water inlet (2) and the outside of the sealing seat (3), and are evenly arranged at the bottom end of the bottom cover (5) of the chassis (1). The bolts (1604) are all arranged inside the No. 1 flange (1601), the No. 2 flange (1602) and the mounting protrusions (1603). A sealing ring (1605) is arranged at one end of the mounting protrusion (1603) below the top of the bolt (1604) and close to the bolt (1604).

2. A submersible pump with good waterproof performance according to claim 1, characterized in that: The filtering structure (6) comprises a filter screen (601), a sliding protrusion (602), a mounting groove (603) and a reserved hole (604); the filter screen (601) is arranged at the bottom end of the inner chassis (1) of the water inlet (2); the sliding protrusions (602) are evenly arranged on the top of the filter screen (601); the mounting groove (603) is provided on the inner wall of the bottom of the chassis (1); and the reserved hole (604) is provided at the bottom end of the chassis (1).

3. A submersible pump with good waterproof performance according to claim 2, characterized in that: The sliding protrusion (602) is arranged inside the installation groove (603), and the filter screen (601) and the installation groove (603) are rotatably connected via the sliding protrusion (602).

4. A submersible pump with good waterproof performance according to claim 1, characterized in that: The sealing structure (15) comprises a sealing base (1501), a spring (1502), a sealing block (1503) and a limiting plate (1504); the sealing base (1501) is arranged on both sides of the outer wall of the internal rotating shaft (7) of the water inlet (2); the sealing base (1501) is provided with a spring (1502) inside; the sealing block (1503) is provided on the side of the spring (1502) away from the water inlet (2); and the limiting plate (1504) is provided on the side of the sealing block (1503) away from the spring (1502).

5. A submersible pump with good waterproof performance according to claim 4, characterized in that: The sealing base (1501) is symmetrically distributed on the outer wall of the internal rotating shaft (7) of the water inlet (2), and one end of the sealing base (1501) close to the spring (1502) is fixedly connected to both ends of the water inlet (2).

6. A submersible pump with good waterproof performance according to claim 1, characterized in that: The bolts (1604) are arranged inside the No. 1 flange (1601) and the No. 2 flange (1602), and the No. 1 flange (1601) and the No. 2 flange (1602) are threadedly connected via the bolts (1604).

7. A submersible pump with good waterproof performance according to claim 1, characterized in that: The bolts (1604) are simultaneously arranged inside adjacent mounting protrusions (1603), and the adjacent mounting protrusions (1603) are threadedly connected via the bolts (1604).

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