CN210265142U

CN210265142U - Anti-blocking submersible sewage pump

Info

Publication number: CN210265142U
Application number: CN201921015872.XU
Authority: CN
Inventors: 隗小松
Original assignee: Hebei Around Asia Pump Industry Co ltd
Current assignee: Hebei Around Asia Pump Industry Co ltd
Priority date: 2019-06-29
Filing date: 2019-06-29
Publication date: 2020-04-07
Anticipated expiration: 2029-06-29

Abstract

The utility model discloses an anti-clogging submersible sewage pump, which comprises a pump body, wherein a motor, an oil chamber and an impeller are respectively arranged in the pump body, a water inlet pipe is fixedly arranged at the bottom of the pump body, a flow guide cover is sleeved on the water inlet pipe, a rotating shaft is fixedly arranged in the water inlet pipe, a crushing knife and a crushing hammer are fixedly arranged on the rotating shaft, a first vibration damping plate is inserted on the water inlet pipe, a first groove is formed in the first vibration damping plate, a rubber scraper is inserted in the first groove, a fixing ring is sleeved on the outer wall of the water inlet pipe, an elastic rod is circumferentially arranged on the fixing ring, a vibration damping base is fixedly arranged on the elastic rod, a second vibration damping plate is fixedly arranged below the oil chamber, and a plurality of second elastic; the utility model discloses a broken mechanism normal operating not only can be guaranteed to the submersible sewage pump, and then makes impeller and motor disappearance damage, can also prevent blocking phenomenon, simultaneously, prevents that grease chamber seal from damaging and the phenomenon of motor intaking appears, improves the life and the reduction cost of maintenance of impeller and motor.

Description

Anti-blocking submersible sewage pump

Technical Field

The utility model relates to a water pump field especially relates to a prevent blockking up submersible sewage pump.

Background

The submersible sewage pump is a submersible sewage pump, a conveyed medium is mixed liquid containing solid materials, a motor part and a pump body part are of an integrated structure, the submersible sewage pump is required to be completely soaked in the liquid when in use, at the moment, a motor cover plate and a transmission shaft of the submersible sewage pump are sealed to bear the same pressure generated by the pump body conveying the liquid, and in the actual use process, sewage often contains a plurality of blocky, granular or long-fiber impurities; in addition, the machine seal adopts double-sided sealing structure to install and plays lubrication and cooling through professional oil in the grease chamber, and this structure damages the weeping entering grease chamber at the outer seal and does not have any protection device, will appear that the inner seal damages the motor and intake, can also make the whole damage of motor. In addition, when the motor part is maintained, the whole submersible sewage pump needs to be disassembled completely, which is time-consuming and labor-consuming, and when the part is not maintained, the whole submersible sewage pump can be repaired and wasted, so that the use cost is increased.

In order to solve the above technical problems, in the prior art, a breaking device or a cutting device is disposed on a sewage pump, but generally, the sewage pump is only provided with a cutting knife plate or a breaking knife, when the processed sewage contains hard solids, the sewage pump is directly contacted with the cutting knife plate or the breaking knife, so that the cutting knife plate or the breaking knife is damaged by direct impact force, even if the sewage is cut off by long fibers, bags, belts, grass, cloth strips and the like, the impurities in the sewage are wound on an impeller or the hard solids impact an oil chamber with too high force to cause the impeller to rotate normally, the oil chamber has a water inlet phenomenon to cause the motor to rotate normally, the whole submersible sewage pump cannot operate normally, the service life of the submersible sewage pump is shortened, and in addition, when the sewage contains impurities with high viscosity, the sewage pump is attached to the cutting knife plate or the breaking knife, can lead to cutting board or broken sword to lose the efficiency of use like this, and can't cut off sewage impurity, and then make the impeller receive the jam and the dead phenomenon of card appears, reduce submersible sewage pump's life, therefore, at present, the urgent need not one kind not only can guarantee broken mechanism normal operating, and then make impeller and motor disappearance damage, can also prevent the blocking phenomenon, and simultaneously, prevent that the sealed damage of grease chamber and the motor phenomenon of intaking from appearing, improve the life of impeller and motor and reduce cost of maintenance's submersible sewage pump.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent blockking up submersible sewage pump to solve the problem that above-mentioned prior art exists, not only can guarantee broken mechanism normal operating, and then make impeller and motor disappearance damage, can also prevent the blocking phenomenon, simultaneously, prevent that grease chamber seals and damages and the motor phenomenon of intaking appears, improve the life of impeller and motor and reduce cost of maintenance.

In order to achieve the above object, the utility model provides a following scheme: the utility model provides an anti-clogging submersible sewage pump, which comprises a pump body, wherein a motor, an oil chamber and an impeller are respectively arranged in the pump body, the motor is arranged above the oil chamber, the oil chamber is arranged above the impeller, a water inlet pipe is fixedly arranged at the bottom of the pump body, a flow guide cover is sleeved at a water inlet of the water inlet pipe, a first fixing seat and a second fixing seat are respectively fixed in the water inlet pipe, the first fixing seat is positioned below the second fixing seat, a rotating shaft is buckled on the first fixing seat, a crushing knife and a crushing hammer are fixedly arranged on the rotating shaft, the crushing knife and the crushing hammer are arranged in a staggered way, a first vibration damping plate is spliced on the second fixing seat, a plurality of first grooves are arranged on the first vibration damping plate, a rubber scraper is inserted in the first grooves, the rubber scraper is in sliding contact with the crushing knife and the crushing hammer, a fixing ring is sleeved on the outer wall of the water inlet, the fixed ring is circumferentially provided with a plurality of elastic rods, a vibration damping base is fixedly mounted on each elastic rod, a second vibration damping plate is fixedly mounted below the oil chamber, and a plurality of second elastic pieces are embedded in the second vibration damping plate.

Preferably, the central axis of the crushing knife is inclined with respect to the central axis of the rotating shaft, and the central axis of the crushing hammer is perpendicular to the central axis of the rotating shaft.

Preferably, the crushing knife is of a triangular structure, and the crushing hammer is of an inverted trapezoidal structure.

Preferably, the side wall of the first groove is symmetrically provided with first elastic parts, the first elastic parts are fixed with bulges, the rubber scraper is provided with a second groove, and the bulges are matched with the second groove.

Preferably, the protrusion and the second groove are of a semicircular structure, and the first elastic piece is a spring or a shrapnel.

Preferably, the first damping plate has an arc-shaped structure.

Preferably, the air guide sleeve is of a horn-shaped structure.

Preferably, the second elastic member is a compression spring.

The utility model discloses a following technological effect: the utility model discloses an anti-block submersible sewage pump, which is characterized in that a rotating shaft is arranged in a water inlet pipe, breaking hammers and breaking knives are arranged on the rotating shaft in a staggered way, and rubber scrapers are arranged on the rotating shaft, so when the sewage contains hard solids, the breaking hammers can break the sewage under the driving of the rotating shaft, and the breaking knives can cut and break the sewage again, thereby avoiding damaging the breaking knives, improving the efficiency of breaking the impurities in the sewage, preventing the impeller from being wound or vibrating the oil chamber and the motor, prolonging the service life of the impeller and the motor, further prolonging the service life of the submersible sewage pump and reducing the maintenance cost, in addition, the anti-block submersible sewage pump is also provided with a second damping plate below the oil chamber, and a second elastic piece is embedded in the second damping plate, thus when the external seal of the oil chamber is seriously impacted, the second damping board can disperse the impact, plays the effect of damping, prevents that the external seal from receiving the device and damaging, and then prevents that the internal seal from damaging equally and appearing the motor phenomenon of intaking, has guaranteed the normal use of motor.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural view of the anti-clogging submersible sewage pump disclosed by the present invention;

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

FIG. 3 is an enlarged view of a portion B of FIG. 1;

FIG. 4 is an enlarged view of a portion C of FIG. 1;

wherein, 1-pump body; 2-an impeller; 3, a motor; 4-water inlet pipe; 5-a flow guide cover; 6-a first fixed seat; 7-a rotating shaft; 8-breaking hammer; 9-a crushing knife; 10-a first damping plate; 11-a first groove; 12-rubber scraper; 13-a protective cover; 14-a fixed ring; 15-a resilient lever; 16-a vibration damping mount; 17-a second fixed seat; 18-a water outlet pipe; 19-a second groove; 20-a first elastic member; 21-bulge; 22-a second damping plate; 23-a second elastic member; 24-oil chamber.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1-4, the utility model provides an anti-clogging submersible sewage pump, which comprises a pump body 1, wherein a motor 3, an oil chamber 24 and an impeller 2 are respectively arranged in the pump body 1, the motor 3 is arranged above the oil chamber 24, the oil chamber 24 is arranged above the impeller 2, a water inlet pipe 4 is fixedly arranged at the bottom of the pump body 1, and a protective cover 13 is sleeved outside the water inlet pipe 4 in order to prevent the water inlet pipe 4 and relevant parts from being damaged; the water inlet of the water inlet pipe 4 is sleeved with the air guide sleeve 5, and the air guide sleeve 5 is arranged in a horn-shaped structure, so that the sewage inlet speed can be increased, the sewage inlet amount is increased, and the sewage treatment efficiency is improved; a first fixed seat 6 and a second fixed seat 17 are respectively fixed in the water inlet pipe 4, wherein the first fixed seat 6 is positioned below the second fixed seat 17, a rotating shaft 7 is inserted on the first fixed seat 6, a crushing knife 9 and a crushing hammer 8 are fixedly arranged on the rotating shaft 7, and the crushing knives 9 and the crushing hammers 8 are arranged in a staggered way, when sewage enters from the water inlet of the water inlet pipe 4, hard solid impurities or liquid with higher viscosity in the sewage enter the submersible sewage pump along with the sewage, under the impact of sewage, the rotating shaft 7 rotates, the breaking hammer 8 and the breaking knife 9 fixed on the rotating shaft 7 rotate along with the rotation, at the moment, some hard solids are broken by the breaking hammer 8, and at the same time, when the rotating shaft 7 rotates, the sewage is cut up again by the crushing blades 9 arranged in a staggered way, and finally the sewage containing impurities after crushing is discharged by the water outlet pipe 18. The second fixing seat 17 is inserted with the first damping plate 10, meanwhile, the first damping plate 10 is provided with a plurality of first grooves 11, the rubber scraper 12 is inserted into the first grooves 11, so that the rubber scraper 12 is in sliding contact with the crushing knife 9 and the crushing hammer 8, in addition, the installation height of the crushing hammer 8 can be set to be not higher than that of the crushing knife 9, the abrasion degree of the crushing knife 9 can be reduced, the service life of the crushing knife 9 is prolonged, when the viscosity of liquid in sewage is high, the sewage can be adhered to the crushing knife 9 or the crushing hammer 8, the rubber scraper 12 is arranged above the sewage, when the sewage with high viscosity is adhered to the crushing knife 9 or the crushing hammer 8, the sewage can be scraped by the rubber scraper 12 and finally discharged along the water outlet pipe 18 along with the flowing of the sewage; meanwhile, the outer wall of the water inlet pipe 4 is sleeved with the fixing ring 14, the fixing ring 14 is circumferentially provided with a plurality of elastic rods 15, the elastic rods 15 are fixedly provided with vibration reduction bases 16, when sewage contains a large amount of hard solid impurities, the large impact force can be given to the submersible sewage pump, the stability of the submersible sewage pump can be reduced, components in the submersible sewage pump are vibrated, the components collide with the pump body 1 to be abraded or damaged, the rubber scraper 12 is provided with the first vibration reduction plate 10, when the rubber scraper 12 is subjected to vibration force, the vibration force on the rubber scraper can be transmitted to the first vibration reduction plate 10, the first vibration reduction plate 10 can transmit the vibration force to the fixing ring 14 arranged on the water inlet pipe 4, the vibration force is transmitted to the elastic rods 15 through the fixing ring 14, the elastic rods 15 are finally transmitted to the vibration reduction bases 16, and thus the vibration force of the whole submersible sewage pump is reduced, thereby ensuring the stability of the submersible sewage pump. A second vibration damping plate 22 is fixedly arranged below the oil chamber 24, a plurality of second elastic pieces 23 are embedded in the second vibration damping plate 22, and in order to ensure the vibration damping effect, the second elastic pieces 23 are set to be compression springs; when sewage enters the impeller 2 part, certain impact force can be applied to the oil chamber 24, so that the outer seal of the oil chamber 24 can be damaged, along with the damage of the outer seal, the inner seal is also easy to damage, water can enter the motor 3, and then the motor 3 is burnt, the second vibration damping plate 22 is arranged below the oil chamber 24, the second elastic piece 23 is embedded in the second vibration damping plate 22, so that when the impact force is applied, the second vibration damping plate 22 can transmit the impact force to the second elastic pieces 23, so that the vibration force is reduced, the outer seal of the oil chamber 24 is protected, and the motor 3 is prevented from being damaged due to water entering.

Further optimization scheme, in order to guarantee that crushing sword 9 and quartering hammer 8 can normal operating, and prevent the wearing and tearing phenomenon and can't carry out crushing work, can't cut or broken debris when sewage is handled simultaneously, just can cause the damage to impeller 2 and motor 3, and then lead to the unable normal work of whole dive dredge pump. The central axis of the crushing knife 9 and the central axis of the rotating shaft 7 are obliquely arranged, the central axis of the crushing hammer 8 is perpendicular to the central axis of the rotating shaft 7, meanwhile, the crushing knife 9 is arranged to be of a triangular structure, and the crushing hammer 8 is of an inverted trapezoidal structure; when the rotation axis 7 is rotatory under the impact of sewage like this, the contact surface of debris is the biggest in the quartering hammer 8 of perpendicular setting and the sewage, can guarantee to smash hard solid whole, and simultaneously, the central axis with broken sword 9 sets up with the central axis slope of rotation axis 7, can make the sewage that contains debris can be along with a heliciform appears in rotation axis 7 like this, after hard solid is being smashed by quartering hammer 8 like this, it can be along with sewage rotation to broken sword 9 on, and then can make it pass through twice breakage, the breakage to hard solid has been guaranteed, prevent that impeller 2 and motor 3 from receiving serious impact and taking place to damage, the life of submersible sewage pump has been improved, and maintenance cost is reduced.

Further optimization scheme can be changed conveniently after guaranteeing rubber scraper 12 serious wearing and tearing, and then guarantees to strike off the sticky mucus of gluing on quartering hammer 8 and the broken sword 9 for quartering hammer 8 and broken sword 9 normally carry out crushing work, and protection impeller 2 and motor 3 can not receive the striking and damage, improve submersible sewage pump's life, reduce cost of maintenance. The first elastic piece 20 is symmetrically arranged on the side wall of the first groove 11, the bulge 21 is fixed on the first elastic piece 20, and the second groove 19 is formed in the rubber scraper 12, so that the bulge 21 is matched with the second groove 19, and therefore when the rubber scraper is subjected to impact force, the first elastic piece 20 also has certain buffering power, and meanwhile, the rubber scraper 12 can be conveniently detached and is easy to replace.

Furthermore, in order to make the installation and the disassembly of the rubber scraper 12 more convenient, the protrusion 21 and the second groove 19 are set to be semicircular structures, so that the installation and the disassembly are convenient under the action of the circular arc, the abrasion degree between the parts is also reduced, and meanwhile, the first elastic piece 20 is set to be a spring or an elastic piece.

In order to ensure that the first damping plate 10 can not only play a role in damping, but also enable sewage to pass through smoothly, the first damping plate 10 is set to be of an arc-shaped structure.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides a prevent blockking up submersible sewage pump, includes the pump body (1), be provided with motor (3), grease chamber (24) and impeller (2) in the pump body (1) respectively, motor (3) set up in grease chamber (24) top, grease chamber (24) set up in impeller (2) top, its characterized in that: the water pump is characterized in that a water inlet pipe (4) is fixedly arranged at the bottom of the pump body (1), a diversion cover (5) is sleeved at a water inlet of the water inlet pipe (4), a first fixing seat (6) and a second fixing seat (17) are respectively fixed in the water inlet pipe (4), the first fixing seat (6) is positioned below the second fixing seat (17), a rotating shaft (7) is inserted on the first fixing seat (6), a crushing knife (9) and a crushing hammer (8) are fixedly installed on the rotating shaft (7), the crushing knife (9) and the crushing hammer (8) are arranged in a staggered manner, a first vibration damping plate (10) is inserted on the second fixing seat (17), a plurality of first grooves (11) are formed in the first vibration damping plate (10), a rubber scraper (12) is inserted in the first grooves (11), and the rubber scraper (12) is in sliding contact with the crushing knife (9) and the crushing hammer (8), the outer wall of inlet tube (4) has cup jointed solid fixed ring (14), gu fixed ring (14) go up circumference and be provided with a plurality of elastic rod (15), fixed mounting has damping base (16) on elastic rod (15), grease chamber (24) below fixed mounting has second damping plate (22), a plurality of second elastic component (23) have been embedded to have been put in second damping plate (22).

2. The anti-clogging submersible sewage pump of claim 1, wherein: the central axis of the crushing knife (9) and the central axis of the rotating shaft (7) are obliquely arranged, and the central axis of the crushing hammer (8) and the central axis of the rotating shaft (7) are vertically arranged.

3. The anti-clogging submersible sewage pump of claim 2, wherein: the crushing knife (9) is of a triangular structure, and the crushing hammer (8) is of an inverted trapezoidal structure.

4. The anti-clogging submersible sewage pump of claim 1, wherein: the rubber scraper is characterized in that first elastic pieces (20) are symmetrically arranged on the side wall of the first groove (11), a bulge (21) is fixed on the first elastic pieces (20), a second groove (19) is formed in the rubber scraper (12), and the bulge (21) is matched with the second groove (19).

5. The anti-clogging submersible sewage pump of claim 4, wherein: the protrusion (21) and the second groove (19) are of a semicircular structure, and the first elastic piece (20) is a spring or an elastic piece.

6. The anti-clogging submersible sewage pump of claim 1, wherein: the first damping plate (10) is of an arc-shaped structure.

7. The anti-clogging submersible sewage pump of claim 1, wherein: the air guide sleeve (5) is of a horn-shaped structure.

8. The anti-clogging submersible sewage pump of claim 1, wherein: the second elastic piece (23) is a pressure spring.