CN211230948U - Anti-reflux device of submersible electric pump - Google Patents

Abstract

The utility model discloses a submerged motor pump prevent device against current, including flange, last casing, lower casing and prevent the subassembly against current, go up casing and casing threaded connection down, the tip homogeneous integrated into one piece of going up casing and lower casing has the drum, upward be provided with seal ring between casing and the lower casing, the tip of two sets of drums all is fixed with the flange, and the outside of two sets of drums all is fixed with the reinforcement, the through-hole with the return bend adaptation is seted up to the lateral wall of casing down, the inside of casing is provided with dredges the piece and prevents the subassembly against current down, prevent that the subassembly against current passes through the galvanized bolt and dredges the piece and be connected, the outer wall of casing is fixed with the nut down, and the nut cover is in the outside of return bend. The anti-reflux device of the submersible electric pump can effectively prevent backflow water from entering the submersible electric pump, and prolongs the service life of the submersible electric pump.

Description

Anti-reflux device of submersible electric pump

Technical Field

The utility model belongs to the technical field of the submerged motor pump, concretely relates to submerged motor pump's anti-reflux device.

Background

The submerged motor pump is at the in-process that uses, if the sudden shutdown, the water of persisting in the raceway can take place the phenomenon against the current because of the action of gravity, produces the water hammer effect, and is very big to the harm of water pump, and the bigger water pump of lift is more obvious against the current phenomenon, and the water hammer effect is more serious, and rivers impact water pump influences the stability of water pump.

Therefore, in order to meet the current situation, the design and production of a backflow prevention device of a submersible electric pump are urgently needed to meet the requirement of practical use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-reflux device of submerged motor pump to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a submerged motor pump prevent device against current, includes flange, last casing, lower casing and prevents subassembly against current, go up casing and casing threaded connection down, the equal integrated into one piece of tip of going up casing and lower casing has the drum, go up and be provided with seal ring between casing and the lower casing, the tip of two sets of drums all is fixed with the flange, and the outside of two sets of drums all is fixed with the reinforcement, the lateral wall of casing is seted up down with the through-hole of return bend adaptation, the inside of casing is provided with dredges the piece and prevents the subassembly against current down, prevent the subassembly against current through galvanized bolt and dredge the piece and be connected.

Preferably, the reinforcing member includes connecting plate, dog and lead screw, the inside of connecting plate set up with the logical groove of drum adaptation, the lateral wall integrated into one piece of connecting plate has the flange, one side that the flange was kept away from to the connecting plate is fixed with two sets of dogs, and is two sets of the screw with the lead screw adaptation is all seted up to the inside of dog, and is two sets of the tip that the lead screw is in the opposite direction all is fixed with the fixture block, and the lateral wall that two sets of fixture blocks are in the opposite direction all is fixed with the cushion, and is two sets of the tip that the cushion was kept away from.

Preferably, it includes blend stop, horizontal pole and plug to dredge, the blend stop is provided with two sets ofly, two sets of the blend stop is all fixed at the inner wall of casing down, and is two sets of the lateral wall in opposite directions of blend stop all sets up the spout with the horizontal pole adaptation, the roof of horizontal pole is fixed with the inserted bar, the roof of inserted bar is fixed with the plug of T shape, plug and return bend adaptation.

Preferably, prevent subassembly against current includes movable block, gum cover and dredges the board, the movable block is the hemisphere, the diapire of movable block is fixed with the guide bar, the diapire of movable block is fixed with hemispherical gum cover, the bottom of guide bar run through dredge the baffle and with ball threaded connection, the roof structure of dredging the baffle has the recess with the gum cover adaptation, the multiunit through-hole has been seted up to the inside of dredging the baffle, dredge the inner wall of the reducing section that the baffle is fixed at the lower casing.

Preferably, a nut is fixed on the outer wall of the lower shell and sleeved outside the elbow.

The utility model discloses a technological effect and advantage: according to the anti-reflux device of the submersible electric pump, the screw rod is rotated, and the screw rod drives the clamping block and the rubber pad to move, so that the rubber pad is tightly attached to the side wall of the flange and the side wall of the pipeline, the stability of the pipeline joint can be improved, and the connection strength of the pipeline joint is improved; when the submersible electric pump normally operates, the water flow impacts the rubber sleeve and the movable block to enable the movable block and the dredging part to move to one side of the upper shell, the rubber plug blocks the bent pipe to prevent water from leaking out through the bent pipe, and the water flow passes through the dredging plate, the upper shell and enters the water raising pipe without affecting the water conveying; when the submersible electric pump is stopped, the water pressure in the water raising pipe pushes the movable block to move towards the lower shell, and the dredging plate is blocked by the rubber sleeve, so that water in the water raising pipe and the upper shell is prevented from flowing back into the submersible electric pump, the reverse friction between a stator and a rotor of the submersible electric pump and the abrasion of the water wheel thrust on parts inside the submersible electric pump are avoided, and the service life of the submersible electric pump is prolonged; dredge the piece and move down along with the movable block, plug and return bend separation, partial backward flow water in the upper casing passes through the return bend discharge, and the normal start that the water pump was not influenced to the little water between upper casing and the lower casing, this submerged motor pump prevent against current device, can prevent effectively that the backward flow water from getting into submerged motor pump in, prolonged submerged motor pump's life.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a schematic structural view of the reinforcing member of the present invention;

fig. 3 is a front view of the dredging member of the present invention.

In the figure: the device comprises a flange 1, an upper shell 2, an elbow 3, a lower shell 4, a reinforcing member 5, a connecting plate 50, a stop 51, a screw rod 52, a dredging guide member 6, a stop strip 60, a cross rod 61, a rubber plug 62, an inserted rod 63, an anti-backflow assembly 7, a movable block 8, a rubber sleeve 9, a dredging guide plate 10 and a guide rod 11.

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.

Unless defined otherwise, all references to up, down, left, right, front, back, inner and outer directions herein are to be interpreted as referring to up, down, left, right, front, back, inner and outer directions in the drawings to which the invention is applied, and all references are hereby incorporated herein by reference.

The utility model provides a device against current of submerged motor pump as shown in fig. 1-3, including flange 1, last casing 2, lower casing 4 and prevent subassembly 7 against current, go up casing 2 and lower casing 4 threaded connection, the equal integrated into one piece of tip of going up casing 2 and lower casing 4 has the drum, go up and be provided with seal ring between casing 2 and the lower casing 4, the flange 1 has all been welded to the tip of two sets of drums, and the outside of two sets of drums all has reinforcement 5 through the bolt fastening, the through-hole with 3 adaptations of return bend is seted up to the lateral wall of lower casing 4, the inside of casing 4 is provided with dredge 6 and prevents subassembly 7 against current down, prevent that subassembly 7 against current passes through the galvanized bolt and is connected with dredge 6.

Specifically, the reinforcement 5 includes connecting plate 50, dog 51 and lead screw 52, the logical groove with the drum adaptation is seted up to the inside of connecting plate 50, the lateral wall integrated into one piece of connecting plate 50 has the flange, and the flange cover is in the outside of drum, the welding of one side that connecting plate 50 kept away from the flange has two sets of dog 51, and is two sets of the screw with the adaptation of lead screw 52 is all seted up to dog 51's inside, and is two sets of the fixture block has all been welded to lead screw 52 tip in opposite directions, and two sets of fixture block lateral walls in opposite directions all bond and have the cushion, and are two sets of the tip that the cushion was kept away from to lead screw 52 has all welded the barre, rotatory lead screw 52, and lead screw 52 drives fixture block and cushion and removes, makes the cushion hug closely the lateral wall of flange 1 and.

Specifically, dredge guiding member 6 and include blend stop 60, horizontal pole 61 and plug 62, blend stop 60 is provided with two sets ofly, two sets ofly the inner wall of casing 4 under the blend stop 60 all welds, and is two sets of the spout with horizontal pole 61 adaptation is all seted up to the lateral wall that blend stop 60 is in opposite directions, the roof welding of horizontal pole 61 has inserted bar 63, the roof of inserted bar 63 is fixed with the plug 62 of T shape through the galvanized screw, plug 62 and return bend 3 adaptation dredge guiding member 6 and move down along with movable block 8, plug 9 and the separation of return bend 3, go up the partial backward flow water in the casing 2 and pass through return bend 3 and discharge, go up the normal start that the little water between casing 2 and the lower casing 4 does not influence the submerged motor pump.

Specifically, the anti-reflux assembly 7 comprises a movable block 8, a rubber sleeve 9 and a dredging plate 10, the movable block 8 is hemispherical, a guide rod 11 is welded on the bottom wall of the movable block 8, the hemispherical rubber sleeve 9 is fixed on the bottom wall of the movable block 8 through a galvanized screw, the bottom end of the guide rod 11 penetrates through the dredging plate 10 and is in threaded connection with a sphere, a groove matched with the rubber sleeve 9 is formed in the top wall of the dredging plate 10, a plurality of groups of through holes are formed in the dredging plate 10, the dredging plate 10 is fixed on the inner wall of the diameter-variable section of the lower shell 4 through galvanized bolts, when the submersible electric pump is stopped, the movable block 8 is pushed by water pressure in the water pumping pipe to move towards the lower shell 4, the rubber sleeve 9 is used for blocking the dredging plate 10, so that water in the water pumping pipe and the upper shell 2 is prevented from flowing back to the submersible electric pump, and the reverse friction between a stator and a rotor of the submersible electric pump and the wearing of a hydraulic, the service life of the submersible electric pump is prolonged.

Specifically, the outer wall of the lower shell 4 is welded with a nut, and the nut is sleeved outside the elbow 3.

Specifically, the anti-reflux device of the submersible electric pump, the flange 1 at the end part of the upper shell 2 is connected with an external lifting pipe, the flange 1 at the end part of the lower shell 4 is connected with a water outlet pipe of the submersible electric pump, when the submersible electric pump operates normally, the water flow impacts the rubber sleeve 9 and the movable block 8 to enable the movable block 8 and the dredging part 6 to move towards one side of the upper shell 2, the rubber plug 62 blocks the bent pipe 3 to prevent water from leaking out through the bent pipe 3, the water flow passes through the dredging plate 10 and the upper shell 2 and enters the lifting pipe, the conveying of water is not influenced, when the submersible electric pump is shut down, the water pressure in the lifting pipe pushes the movable block 8 to move towards the lower shell 4, the rubber sleeve 9 blocks the dredging plate 10, thereby preventing the water in the lifting pipe and the upper shell 2 from flowing back into the submersible electric pump, the abrasion of the reverse friction between a stator and a rotor of the submersible electric pump and the parts, the dredging component 6 moves downwards along with the movable block 8, the rubber plug 9 is separated from the bent pipe 3, partial backflow water in the upper shell 2 is discharged through the bent pipe 3, and the normal starting of the submersible electric pump is not influenced by a small amount of water between the upper shell 2 and the lower shell 4.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (5)

1. The utility model provides a submerged motor pump's anti-reflux device, includes flange (1), upper housing (2), lower housing (4) and prevents countercurrent assembly (7), its characterized in that: go up casing (2) and lower casing (4) threaded connection, the equal integrated into one piece of tip of going up casing (2) and lower casing (4) has the drum, go up and be provided with seal ring between casing (2) and the lower casing (4), the tip of two sets of drums all is fixed with flange (1), and the outside of two sets of drums all is fixed with reinforcement (5), the through-hole with return bend (3) adaptation is seted up to the lateral wall of casing (4) down, the inside of casing (4) is provided with dredges guide (6) and prevents subassembly (7) against the current down, prevent that countercurrent subassembly (7) are connected with dredging guide (6) through the galvanized bolt.

2. The anti-reflux device for submersible electric pump according to claim 1, characterized in that: the reinforcing member (5) comprises a connecting plate (50), stop blocks (51) and a screw rod (52), a through groove matched with the cylinder is formed in the connecting plate (50), a flange is formed in the side wall of the connecting plate (50) in an integrated mode, two sets of stop blocks (51) are fixed on one side, far away from the flange, of the connecting plate (50), screw holes matched with the screw rod (52) are formed in the stop blocks (51), two sets of clamping blocks are fixed on opposite end portions of the screw rod (52), rubber pads are fixed on opposite side walls of the two sets of clamping blocks, and a handle rod is fixed on the end portion, far away from the rubber pads, of the screw rod (52).

3. The anti-reflux device for submersible electric pump according to claim 1, characterized in that: dredge guiding member (6) and include blend stop (60), horizontal pole (61) and plug (62), blend stop (60) are provided with two sets ofly, two sets of blend stop (60) are all fixed at the inner wall of casing (4) down, and are two sets of the spout with horizontal pole (61) adaptation is all seted up to blend stop (60) lateral wall in opposite directions, the roof of horizontal pole (61) is fixed with inserted bar (63), the roof of inserted bar (63) is fixed with plug (62) of T shape, plug (62) and return bend (3) adaptation.

4. The anti-reflux device for submersible electric pump according to claim 1, characterized in that: prevent countercurrent subassembly (7) including movable block (8), gum cover (9) and dredge board (10), movable block (8) are the hemisphere, the diapire of movable block (8) is fixed with guide bar (11), the diapire of movable block (8) is fixed with hemispherical gum cover (9), the bottom of guide bar (11) is run through and is dredged baffle (10) and with ball threaded connection, the roof of dredging baffle (10) is constructed the recess that has with gum cover (9) adaptation, the multiunit through-hole has been seted up to the inside of dredging baffle (10), dredge baffle (10) and fix the inner wall of the reducing section of casing (4) down.

5. The anti-reflux device for submersible electric pump according to claim 1, characterized in that: and a nut is fixed on the outer wall of the lower shell (4) and sleeved outside the elbow (3).

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