CN217270878U - Self-balancing submersible sewage pump - Google Patents

Abstract

The utility model discloses a self-balancing submersible sewage pump, which comprises a base, a pump body, a first screw, a shaft lever, an impeller, a second screw, a backing plate, a pump disc, a first mechanical sealing element, an oil chamber, a second mechanical sealing element, an elastic retainer ring, a double-row angular contact ball bearing, a bearing end cover, a third screw, an upper end top cover, a fourth screw, a sewage motor, an oil-water probe and a leather seal oil ring; the pump body is provided with a water outlet pipe seat, a fifth screw, a sixth screw, a coupler, a lower positioning sleeve, a steel pipe, a coupling frame component and foundation bolts; the water outlet pipe seat is provided with a water outlet, and the side wall of the water outlet is fixedly provided with a plurality of fixing pieces; the filter screen is also included, and a plurality of access blocks are arranged on the filter screen. The utility model has the advantages of it is following and effect: due to the split design, the disassembly points are increased, and the maintenance and the replacement after the later disassembly are facilitated; and through setting up the filter screen, let the utility model discloses possess filtering capability, the in-service use is effectual.

Description

Self-balancing submersible sewage pump

Technical Field

The utility model relates to a pump technical field, in particular to self-balancing type submersible sewage pump.

Background

A pump is a machine that delivers or pressurizes a fluid. It transfers the mechanical energy of the prime mover or other external energy to the liquid, causing the liquid energy to increase. The pump is mainly used for conveying liquid such as water, oil, acid-base liquid, emulsion, suspoemulsion and liquid metal, and can also be used for conveying liquid, gas mixture and liquid containing suspended solids.

The existing submersible sewage pump generally adopts an integrated design, has fewer detachable points and is not beneficial to maintenance and replacement after later-period detachment; and this kind of submersible sewage pump does not have the function of carrying out the filtration to the delivery port, and the actual use effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a self-balancing type submersible sewage pump to solve the problem that proposes among the background art.

The above technical purpose of the present invention can be achieved by the following technical solutions: a self-balancing submersible sewage pump comprises a base used as a bearing structure, wherein a pump body is arranged on the base, the pump body and the base are fixed through a first screw, a shaft lever longitudinally penetrates through the pump body, an impeller is arranged at the lower end of the shaft lever, the impeller and the shaft lever are fixed through a second screw, and a base plate is arranged between the impeller and the shaft lever; the upper end of the pump body is provided with a pump disc, a first mechanical sealing element connected with the shaft rod is arranged in the pump disc, the upper end of the pump disc is provided with an oil chamber, a second mechanical sealing element connected with the shaft rod is arranged in the oil chamber, and the lower end of the second mechanical sealing element is provided with an elastic retaining ring for a shaft; the upper end of the oil chamber is provided with a double-row angular contact ball bearing sleeved on the periphery of the shaft rod, the upper end cover of the double-row angular contact ball bearing is provided with a bearing end cover, and the double-row angular contact ball bearing and the bearing end cover are fixed through a third screw; an upper end top cover is arranged at the upper end of the oil chamber, the upper end top cover and the oil chamber are fixed through a fourth screw, and a sewage discharge motor is arranged in the upper end top cover; an oil-water probe and a skin-sealed oil ring are arranged on the oil chamber;

the pump body is provided with a water outlet pipe seat, the water outlet pipe seat and the pump body are fixed through a fifth screw, the water outlet pipe seat is fixed with a coupler through a sixth screw, the water outlet pipe seat is provided with a lower positioning sleeve, a longitudinal steel pipe is assembled on the lower positioning sleeve, and the upper end of the steel pipe is provided with a coupling frame assembly; the lower end of the water outlet pipe seat is provided with a foundation bolt;

the water outlet pipe seat is provided with a water outlet, and the side wall of the water outlet is fixedly provided with a plurality of fixing pieces; the filter screen is fixedly provided with a plurality of access blocks which correspond to the fixing pieces one to one, and the access blocks can be inserted into and limited in the fixing pieces, so that the filter screen is fixed.

The further setting is that: the fixing piece comprises a fixing section, the fixing section is fixed on the side wall of the water outlet, an arc section is arranged at the lower end of the fixing section, the arc section is inwards concave, an extension convex section is arranged at the left end of the arc section, an upwards extending elastic section is arranged at the lower end of the extension convex section, an insertion stroke cavity is formed between the elastic section and the extension convex section, and the access block can be inserted into the insertion stroke cavity; the elastic section can be expanded outwards in the process that the access block is inserted into the insertion stroke cavity, and after the access block is inserted into the insertion stroke cavity, the elastic section has a tendency of returning under the self reset acting force so as to press and fix the access block;

the upper end of the elastic section is provided with an abutting pressing head which is bent towards the arc-shaped section;

the access block comprises an arc outer edge matched with the arc section, an invaginated outer edge matched with the extension outer convex section and an insertion convex rod capable of being inserted into the insertion stroke cavity;

the access block also comprises an abutting depression matched with the abutting press-fixing head.

The further setting is as follows: the water outlet pipe is characterized by also comprising a plurality of T-shaped pressing and fixing blocks, wherein one side of each T-shaped pressing and fixing block can be propped against the filter screen and the access block, and the other end of each T-shaped pressing and fixing block is fixed on the water outlet pipe seat through a bolt.

The beneficial effects of the utility model reside in that:

1. the utility model discloses in set the submersible sewage pump of integral type in the traditional architecture to base, the pump body, pump disc, grease chamber and these several modules of upper end top cap through the split, and fix through a plurality of screws, increased and to have dismantled the point, be favorable to the later stage to dismantle the maintenance after changing. The base plate can protect the impeller and the shaft lever and can effectively improve the assembly stability of the impeller and the shaft lever; the first mechanical sealing element and the second mechanical sealing element can reduce friction loss and improve the mechanical efficiency of the shaft rod, the second mechanical sealing element can also reduce internal leakage of an oil chamber and improve the volumetric efficiency, and the elastic check ring for the shaft plays a role in reinforcement; the double-row angular contact ball bearing can provide a bearing configuration with higher rigidity, can bear overturning moment, enables the rotation of the shaft lever to be more stable, and then protects the double-row angular contact ball bearing by arranging the bearing end cover. Additionally, the utility model discloses in still realize the filtration of delivery port through setting up the filter screen, the in-service use is effectual, and realizes the fixed to the filter screen through setting up the mounting and inserting the piece, and stability is better, conveniently dismantles simultaneously, changes the filter screen.

2. The utility model discloses a middle fixing part includes a fixed section, an arc section, an extension convex section and an elastic section, the fixed section is fixed on the side wall of the water outlet, the arc section is used for positioning, an insertion stroke cavity is formed between the extension convex section and the elastic section, an insertion convex rod on the access block can be inserted into the insertion stroke cavity, and the access block is pressed and fixed based on the elastic reset acting force of the elastic section, so as to realize the limit of the access block; then, still realize further spacing to the access block through setting up butt crimping head and butt sunken.

3. The utility model discloses in realize further reinforcement spacing to the filter screen through setting up the T type and pressing the solid piece.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is an enlarged view of a portion B in fig. 1.

In the figure: 11. a base; 12. a first screw; 13. a pump body; 14. a shaft lever; 15. an impeller; 16. a second screw; 17. a backing plate; 18. a pump disc; 19. a first mechanical seal; 20. an oil chamber; 21. a second mechanical seal; 22. a circlip for the shaft; 231. a double row angular contact ball bearing; 232. a bearing end cap; 24. a third screw; 25. a top cover at the upper end; 26. a fourth screw; 27. a sewage discharging motor; 28. an oil-water probe; 29. a skin seal oil ring; 30. a water outlet pipe seat; 31. a fifth screw; 32. a coupler; 33. a sixth screw; 34. a lower positioning sleeve; 35. a steel pipe; 36. a coupling rack assembly; 37. anchor bolts; 301. a water outlet; 41. filtering with a screen; 51. a fixed section; 52. an arc-shaped section; 53. extending the convex section; 54. an elastic section; 55. inserting into the stroke cavity; 541. abutting against the press-fixing head; 61. an arc-shaped outer edge; 62. an invaginated outer edge; 63. inserting the convex rod; 631. an abutment recess; 71. t type consolidated block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, a self-balancing submersible sewage pump includes a base 11 as a bearing structure, a pump body 13 is disposed on the base 11, the pump body 13 and the base 11 are fixed by a first screw 12, a shaft rod 14 is longitudinally disposed in the pump body 13 in a penetrating manner, an impeller 15 is disposed at the lower end of the shaft rod 14, the impeller 15 and the shaft rod 14 are fixed by a second screw 16, and a backing plate 17 is disposed between the impeller 15 and the shaft rod 14; a pump disc 18 is arranged at the upper end of the pump body 13, a first mechanical sealing element 19 connected with the shaft rod 14 is arranged in the pump disc 18, an oil chamber 20 is arranged at the upper end of the pump disc 18, a second mechanical sealing element 21 connected with the shaft rod 14 is arranged in the oil chamber 20, and a shaft elastic retainer ring 22 is arranged at the lower end of the second mechanical sealing element 21; a double-row angular contact ball bearing 231 sleeved on the periphery of the shaft rod 14 is arranged at the upper end of the oil chamber 20, a bearing end cover 232 is arranged at the upper end cover of the double-row angular contact ball bearing 231, and the double-row angular contact ball bearing 231 and the bearing end cover 232 are fixed through a third screw 24; an upper end top cover 25 is arranged at the upper end of the oil chamber 20, the upper end top cover 25 and the oil chamber 20 are fixed through a fourth screw 26, and a sewage discharging motor 27 is arranged in the upper end top cover 25; the oil chamber 20 is provided with an oil-water probe 28 and a skin seal oil ring 29;

a water outlet pipe seat 30 is arranged on the pump body 13, the water outlet pipe seat 30 and the pump body 13 are fixed through a fifth screw 31, a coupler 32 is fixed on the water outlet pipe seat 30 through a sixth screw 33, a lower positioning sleeve 34 is arranged on the water outlet pipe seat 30, a longitudinal steel pipe 35 is assembled on the lower positioning sleeve 34, and a coupling frame assembly 36 is arranged at the upper end of the steel pipe 35; the lower end of the water outlet pipe seat 30 is provided with an anchor bolt 37;

the outlet pipe seat 30 is provided with a water outlet 301, and a plurality of fixing pieces are fixedly arranged on the side wall of the water outlet 301; the fixing device further comprises a filter screen 41, wherein a plurality of access blocks which correspond to the fixing parts in one-to-one mode are fixedly arranged on the filter screen 41, and each access block can be inserted into and limited in each fixing part, so that the filter screen 41 is fixed.

The fixing piece comprises a fixing section 51, the fixing section 51 is fixed on the side wall of the water outlet 301, the lower end of the fixing section 51 is provided with an arc section 52, the arc section 52 is inwards recessed, the left end of the arc section 52 is provided with an extension convex section 53, the lower end of the extension convex section 53 is provided with an upwards extending elastic section 54, an insertion stroke cavity 55 is formed between the elastic section 54 and the extension convex section 53, and the access block can be inserted into the insertion stroke cavity 55; the elastic section 54 can be expanded outwards in the process that the access block is inserted into the insertion stroke cavity 55, and after the access block is inserted into the insertion stroke cavity 55, the elastic section 54 has a return trend under the self-reset acting force so as to press and fix the access block;

the upper end of the elastic section 54 is provided with an abutting pressing head 541 which is bent towards the arc-shaped section 52;

the access block comprises an arc-shaped outer edge 61 matched with the arc-shaped section 52, an inward concave outer edge 62 matched with the extension convex section 53 and an insertion convex rod 63 capable of being inserted into the insertion stroke cavity 55;

the access block also includes an abutment recess 631 that mates with the abutment crimp 541.

The water outlet pipe comprises a water outlet pipe base 30, a filter screen 41 and an access block, wherein the water outlet pipe base further comprises a plurality of T-shaped press fixing blocks 71, one side of each T-shaped press fixing block 71 can be abutted against the filter screen 41 and the access block, and the other end of each T-shaped press fixing block 71 is fixed on the water outlet pipe base 30 through bolts.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (3)

1. The utility model provides a self-balancing type submersible sewage pump which characterized in that: the pump comprises a base (11) serving as a bearing structure, wherein a pump body (13) is arranged on the base (11), the pump body (13) and the base (11) are fixed through a first screw (12), a shaft rod (14) longitudinally penetrates through the pump body (13), an impeller (15) is arranged at the lower end of the shaft rod (14), the impeller (15) and the shaft rod (14) are fixed through a second screw (16), and a base plate (17) is arranged between the impeller (15) and the shaft rod (14); a pump disc (18) is arranged at the upper end of the pump body (13), a first mechanical sealing element (19) connected with the shaft rod (14) is arranged in the pump disc (18), an oil chamber (20) is arranged at the upper end of the pump disc (18), a second mechanical sealing element (21) connected with the shaft rod (14) is arranged in the oil chamber (20), and a shaft elastic check ring (22) is arranged at the lower end of the second mechanical sealing element (21); a double-row angular contact ball bearing (231) sleeved on the periphery of the shaft lever (14) is arranged at the upper end of the oil chamber (20), a bearing end cover (232) is arranged at the upper end cover of the double-row angular contact ball bearing (231), and the double-row angular contact ball bearing (231) and the bearing end cover (232) are fixed through a third screw (24); an upper end top cover (25) is arranged at the upper end of the oil chamber (20), the upper end top cover (25) and the oil chamber (20) are fixed through a fourth screw (26), and a sewage discharge motor (27) is arranged in the upper end top cover (25); an oil-water probe (28) and a skin-sealed oil ring (29) are arranged on the oil chamber (20);

a water outlet pipe seat (30) is arranged on the pump body (13), the water outlet pipe seat (30) is fixed with the pump body (13) through a fifth screw (31), a coupler (32) is fixed on the water outlet pipe seat (30) through a sixth screw (33), a lower positioning sleeve (34) is arranged on the water outlet pipe seat (30), a longitudinal steel pipe (35) is assembled on the lower positioning sleeve (34), and a coupling frame assembly (36) is arranged at the upper end of the steel pipe (35); an anchor bolt (37) is arranged at the lower end of the water outlet pipe seat (30);

the water outlet pipe seat (30) is provided with a water outlet (301), and a plurality of fixing pieces are fixedly arranged on the side wall of the water outlet (301); still including filter screen (41), filter screen (41) on the fixed access piece that is provided with a plurality of and each mounting's position one-to-one, each access piece can insert and spacing in each mounting to the realization is fixed filter screen (41).

2. A self-balancing submersible sewage pump as recited in claim 1, further comprising: the fixing piece comprises a fixing section (51), the fixing section (51) is fixed on the side wall of the water outlet (301), an arc-shaped section (52) is arranged at the lower end of the fixing section (51), the arc-shaped section (52) is recessed inwards, an extension convex section (53) is arranged at the left end of the arc-shaped section (52), an elastic section (54) extending upwards is arranged at the lower end of the extension convex section (53), an insertion stroke cavity (55) is formed between the elastic section (54) and the extension convex section (53), and the access block can be inserted into the insertion stroke cavity (55); when the access block is inserted into the insertion stroke cavity (55), the elastic section (54) can be expanded outwards, and after the access block is inserted into the insertion stroke cavity (55), the elastic section (54) has a return trend under the self reset acting force so as to press and fix the access block;

the upper end of the elastic section (54) is provided with an abutting pressing head (541) which is bent towards the arc-shaped section (52);

the access block comprises an arc-shaped outer edge (61) matched with the arc-shaped section (52), an inward-sunken outer edge (62) matched with the extension convex section (53), and an insertion convex rod (63) capable of being inserted into the insertion stroke cavity (55);

the connecting block also comprises an abutting concave part (631) matched with the abutting pressing head (541).

3. A self-balancing submersible sewage pump as recited in claim 2, further comprising: the water outlet pipe is characterized by further comprising a plurality of T-shaped pressing blocks (71), one side of each T-shaped pressing block (71) can be abutted against the filter screen (41) and the access block, and the other end of each T-shaped pressing block (71) is fixed on the water outlet pipe seat (30) through a bolt.

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