CN202468349U

CN202468349U - Self-cleaning reamer submersible sewage pump

Info

Publication number: CN202468349U
Application number: CN2011205607807U
Authority: CN
Inventors: 顾进发; 冯一鸣
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-29
Filing date: 2011-12-29
Publication date: 2012-10-03
Anticipated expiration: 2021-12-29

Abstract

The utility model discloses a self-cleaning reamer submersible sewage pump which is formed by sequentially assembling and connecting a submersible motor, a rotor shaft, a volute, an impeller, a self-cleaning rotary cutter, a bolt, a pump bottom cover plate and a fixed cutter, wherein a lug with the height of 2mm-5mm is arranged on one side of the top end face of the self-cleaning rotary cutter; the self-cleaning rotary cutter is sleeved into the fixed cutter at a water inlet of the pump bottom cover plate; and the lug extends to the other side of the fixed cutter; therefore, the self-cleaning reamer submersible sewage pump is formed. During the operation of the pump, long-fiber garbage in sewage flows to the mouth of the pump, and one part of the garbage enters a gap between the fixed cutter and the rotary cutter to be cut into pieces and then discharged, while the other part of the garbage can be thrown away due to deviation at the moment of covering the top end part of the rotary cutter because an asymmetric structure is formed by the projecting lug formed at the top end part of the rotary cutter and then is sucked by the pump into the gap between the rotary cutter and the fixed cutter to be cut into pieces and finally discharged together with the sewage; therefore, the blockage of the pump due to the long-fiber garbage is avoided and the purpose of self-cleaning is achieved; and the working personnel does not need to often lift the pump out for cleaning any more.

Description

Self-cleaning type reamer submerged pump

Affiliated technical field

The utility model relates to the submerged pump that sewage promotes usefulness, and the sewage that especially contains long fibre rubbish promotes the reamer submerged pump of usefulness.

Background technique

At present, contain long fibre rubbish such as a large amount of amenities (as: sanitary napkins), plastic bag, braided bag, old underwear in the sewage in ight soil pond, known building basement toilet sewage, bathroom, the municipal drainage, the equipment that promotes this type of discharging sewage is the reamer submerged pump; Can find that discharge of pump diminishes behind the existing reamer submerged pump operation certain hour; Even take out the phenomenon of not water outlet, reason is that the rotating knife tip portion structure in the reamer combination of existing reamer submerged pump is symmetrical, when the reamer submerged pump moves; Sewage medium-length fibre rubbish flows to the pumping hole place with sewage; A part gets in the gap of dead knife and rotating knife by hinge is broken and discharges with sewage, and another part is because of the effect of the symplex structure and the pump suction on rotating knife top, then firm cover on the rotating knife top and throwing can't get rid of; Can not get in the gap of reamer combination broken by hinge; Cumulative with regard to the stifled phenomenon of generating pump, often need the staff to propose the pump cleaning, otherwise; Will motor overload take place and burn out and increase the cost of repairs or sewage outflow pollutes surrounding environment or pumping hole is not smooth because of stifled sewage inflow pump chamber, prolong the operating time of pump relatively and waste electric energy.

Summary of the invention

When moving, can not oneself clear up the deficiency of pumping hole long fibre rubbish in order to overcome existing reamer submerged pump; The utility model provides a kind of self-cleaning type reamer submerged pump; It can not only cut with scissors the long fibre rubbish in the broken sewage effluent; And can clear up the long fibre rubbish of pumping hole automatically, and guarantee reamer submerged pump reliable operation, the stifled pump phenomenon of long fibre rubbish does not take place.

The utility model solves the technology that its technical problem adopted: in the reamer submerged pump, submersible motor, rotor shaft, spiral case, impeller, rotating knife, prominent piece, bolt, pump bottom plate, stationary knife are assembled connection in order, and promptly said submersible motor links to each other with spiral case; The rotor shaft lower end of submersible motor is passed the impeller center hole in the spiral case loam cake, spiral case successively, passes the back the axis hole of the rotating knife that is bumped into from the impeller front again and uses bolt, on top end one side of this rotating knife; Be provided with one high: " prominent piece " of 2mm-15mm; " prominent piece " can be three kinds of shapes: wedge shape, taper or cylindricality, and the rotating knife top end is asymmetric because of exceeding of this " prominent piece ", so just constitute the self-cleaning type rotating knife; Again the water intake limit stud with pump bottom plate and the spiral case bottom of stationary knife fixing after; The self-cleaning type rotating knife just is inserted in the stationary knife, and " prominent piece " on the rotating knife top then stretches out the opposite side at stationary knife, and integral body just constitutes self-cleaning type reamer submerged pump; When self-cleaning type reamer submerged pump is worked; Sewage borough chief fiber rubbish flows to pumping hole with sewage, and a part gets into rotating knife and broken discharge is cut with scissors in the stationary knife gap, and another part is being covered in rotating knife tip portion moment; Will cause asymmetric former thereby skew takes place thrown and get rid of because of exceeding of " prominent piece " on the rotating knife top end; Sucked by pump that hinge is broken in the gap of rotating knife and stationary knife together discharges with sewage, reach self-cleaning purpose, or else need the staff often to carry pump and clear up pump.

The beneficial effect of the utility model is; Can not only cut with scissors the long fibre rubbish in the broken sewage effluent during work of self-cleaning type reamer submerged pump, and can oneself clear up pumping hole, or else can take place when guaranteeing the work of reamer submerged pump because of the stifled pump phenomenon of long fibre rubbish; Or else need often propose the pump cleaning; Alleviate people's labor intensity greatly, guarantee reamer submerged pump reliable operation, and self-cleaning type reamer submerged pump simple structure.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

Fig. 1 is the self-cleaning type reamer submerged pump overall structure sectional arrangement drawing of the utility model.

Fig. 2 is the sectional arrangement drawing of the rotating knife of self-cleaning type reamer submerged pump

Fig. 3 is the worm's eye view of the rotating knife of self-cleaning type reamer submerged pump

1. submersible motors among the figure, 2. rotor shaft, 3. spiral case, 4. impeller, 5. pump bottom plate, 6. stationary knife, 7. rotating knife, 8. bolt, 9. prominent piece.

Embodiment

In Fig. 1; Submersible motor 1 is connected with spiral case 3, and rotor shaft 2 lower ends are passed spiral case 3, impeller 4 center holes successively, from the axis hole that is set in the positive rotating knife 7 of impeller, passes the back again and fixes with bolt 8; Prominent piece 9 is on a side of the top end of rotating knife 7; Stationary knife 6 is set on the pump bottom plate 5 water intake limits, and after pump bottom plate 5 was fixed with spiral case 3 bottoms, rotating knife 7 just was inserted in the stationary knife 6; 9 of " prominent pieces " on rotating knife 7 tops stretch out the opposite side at stationary knife 6, and integral body has just constituted self-cleaning type reamer submerged pump.

Claims

1. self-cleaning type reamer submerged pump; Be to assemble connection in order, it is characterized in that by submersible motor, rotor shaft, spiral case, impeller, rotating knife, prominent piece, bolt, pump bottom plate, stationary knife: on top end one side of rotating knife, be provided with one high: " the prominent piece " of 2mm-15mm; " prominent piece " can be three kinds of shapes: wedge shape, taper or cylindricality; The rotating knife top end is asymmetric because of exceeding of " prominent piece ", has just constituted the self-cleaning type rotating knife, the self-cleaning type rotating knife is inserted in the stationary knife of water intake of pump bottom plate; " prominent piece " stretches out the opposite side at stationary knife, just constitutes self-cleaning type reamer submerged pump.