CN211009253U

CN211009253U - Sealing structure of draining pump

Info

Publication number: CN211009253U
Application number: CN201921968664.1U
Authority: CN
Inventors: 王斌; 韩万超
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-07-14
Anticipated expiration: 2029-11-15

Abstract

The utility model discloses a seal structure of drain pump, including pump case, go-between and connecting plate, the inside threaded connection of connecting plate has the axle sleeve, the one end fixedly connected with closing plate of axle sleeve, one side fixedly connected with impeller of closing plate, connecting hole and protecting cover fixed connection are passed through to one side of closing plate, one side of protecting cover is provided with fixed otter board, there is the lid shell one side of pump case through bolt swing joint. This seal structure of drain pump, through the connecting plate, the setting of axle sleeve and closing plate, the staff can make the connecting plate be connected with the go-between earlier, then the staff is through being connected axle sleeve and connecting plate, make the closing plate can be connected with the connecting plate, thereby prevent that water from entering into inside the pump case, then be connected with the closing plate through making the protecting cover, thereby form a plurality of seal structures, reinforcing sealing performance, and then can improve the stability of during operation.

Description

Sealing structure of draining pump

Technical Field

The utility model relates to a drain pump technical field specifically is a seal structure of drain pump.

Background

The drainage pump is used for draining liquid in the water accumulation pool or the large-scale liquid storage tank, and the working principle of the centrifugal pump is as follows: the liquid obtains energy under the action of inertial centrifugal force by means of the impeller rotating at high speed to improve the pressure, the pump body and the water inlet pipe are full of water before the water pump works to prevent cavitation, when the impeller rotates quickly, the blades promote the water to rotate quickly, the rotating water flies away from the impeller under the action of the centrifugal force, after the water in the pump is thrown out, the central part of the impeller forms a vacuum area, the water at a water source is pressed into the water inlet pipe through a pipe network under the action of atmospheric pressure, thus continuous water pumping can be realized, the centrifugal pump can be started after the pump shell is filled with water before the centrifugal pump is started, otherwise, the pump body is heated, the vibration is caused, the water yield is reduced, the damage to the water pump is caused, and the equipment accident is caused! The cavitation means: when the centrifugal pump is started, if air exists in the pump, the centrifugal force generated after the centrifugal pump rotates is small due to the low density of the air, so that the low pressure formed in the central area of the impeller is not enough to suck the liquid with the liquid level lower than the inlet of the pump into the pump, and the liquid cannot be conveyed.

Because the impeller which needs to rotate at a high speed drives the water inside to rotate, the sealing performance between the impeller and the drainage cavity is particularly important no matter the impeller rotates by an external power supply or a built-in power supply, and if the sealing is insufficient, water leakage is easy to occur to cause the internal leakage or the drainage pump to be damaged, so that the impeller cannot be normally used and brings troubles to work.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a seal structure of drain pump has solved the problem of proposing in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a seal structure of drain pump, includes pump case and go-between, the inside wall fixedly connected with go-between of pump case, the surperficial threaded connection of go-between has the connecting plate, the inside threaded connection of connecting plate has the axle sleeve, the one end fixedly connected with closing plate of axle sleeve, one side fixedly connected with impeller of closing plate, connecting hole and protecting cover fixed connection are passed through to one side of closing plate, one side of protecting cover is provided with fixed otter board, there is the lid shell one side of pump case through bolt swing joint.

Optionally, a sealing ring is arranged on one side of the connecting ring, and a raw adhesive tape is arranged on the surface of the bolt.

Optionally, the surface of the sealing plate is provided with a connecting bolt, and the surface of the connecting plate is provided with a connecting groove.

Optionally, one side fixedly connected with gim peg of protecting cover, the quantity of gim peg is eight, eight the gim peg with annular array's form with protecting cover fixed connection.

Optionally, one side of the protecting cover is movably connected with the sealing plate through the fixing bolt.

Optionally, one end of the cover shell is provided with a water inlet, and one side of the cover shell is provided with a water outlet.

(III) advantageous effects

The utility model provides a seal structure of drain pump possesses following beneficial effect:

1. this seal structure of drain pump through the setting of connecting plate, axle sleeve and closing plate, can make the connecting plate be connected with the go-between earlier, then is connected axle sleeve and connecting plate, makes the closing plate can be connected with the connecting plate, prevents inside water enters into the pump case, then is connected through protecting cover and closing plate, forms a plurality of seal structures, increases sealing performance, improves the stability of work.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an explosion diagram of the structure of the present invention.

In the figure: 1. a pump housing; 2. a connecting ring; 3. a connecting plate; 4. a shaft sleeve; 5. a sealing plate; 6. an impeller; 7. a protective cover; 8. fixing the screen plate; 9. a cover shell; 10. a fixing bolt; 11. a bolt; 12. a water inlet; 13. and (7) a water outlet.

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.

Referring to fig. 1 to 2, the present invention provides a technical solution: a sealing structure of a drainage pump comprises a pump shell 1 and a connecting ring 2, wherein the inner side wall of the pump shell 1 is fixedly connected with the connecting ring 2, the surface of the connecting ring 2 is in threaded connection with a connecting plate 3, and the inner part of the connecting plate 3 is in threaded connection with a shaft sleeve 4;

the surface of the shaft sleeve 4 is provided with a raw adhesive tape, the raw adhesive tape is also called a raw material tape, a white opaque film polytetrafluoroethylene product, an auxiliary product commonly used in water heating installation, the chemical name is polytetrafluoroethylene, the raw adhesive tape is commonly known as polytetrafluoroethylene-raw material tape, and the raw adhesive tape is mainly used at the joint of the cold and hot water supply pipe fittings to enhance the tightness of the joint of the pipeline;

one end of the shaft sleeve 4 is fixedly connected with a sealing plate 5, one side of the sealing plate 5 is fixedly connected with an impeller 6, one side of the sealing plate 5 is fixedly connected with a protective cover 7 through a connecting hole, one side of the protective cover 7 is provided with a fixed screen plate 8, the net mouth of the fixed screen plate 8 is smaller, when the impeller 6 rotates, centrifugal force can be increased, water drainage is faster, one side of the pump shell 1 is movably connected with a cover shell 9 through a bolt 11, one side of a connecting ring 2 is provided with a sealing ring, the surface of the bolt 11 is provided with a raw rubber belt, the surface of the sealing plate 5 is provided with a connecting bolt, the surface of the connecting plate 3 is provided with a connecting groove, through the connection of the connecting bolt and the connecting groove, the sealing plate 5 is movably connected with the connecting plate 3, one side of the protective cover 7 is fixedly connected with fixing bolts 10, the number of the fixing bolts 10 is eight, the surface of the sealing plate 5 is provided with a fixing groove, the fixing bolt 10 is connected with the fixing groove, so that the fixing bolt 10 is movably connected with the sealing plate 5, one end of the cover shell 9 is provided with a water inlet 12, and one side of the cover shell 9 is provided with a water outlet 13.

In conclusion, this seal structure of drain pump, during the use, through using connecting plate 3, let connecting plate 3 be connected with go-between 2, then use axle sleeve 4, make axle sleeve 4 be connected with connecting plate 3, make closing plate 5 can be connected with connecting plate 3, prevent that water from entering into pump case 1 inside, then be connected through protecting cover 7 and closing plate 5, form a plurality of seal structures, increase sealing performance, improve the stability of during operation.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A seal structure of a drain pump, comprising a pump case (1) and a connection ring (2), characterized in that: the utility model discloses a pump case, including pump case (1), inside wall fixedly connected with go-between (2), the surperficial threaded connection of go-between (2) has connecting plate (3), the internal thread connection of connecting plate (3) has axle sleeve (4), the one end fixedly connected with closing plate (5) of axle sleeve (4), one side fixedly connected with impeller (6) of closing plate (5), connecting hole and protecting cover (7) fixed connection are passed through to one side of closing plate (5), one side of protecting cover (7) is provided with fixed otter board (8), there is lid shell (9) one side of pump case (1) through bolt (11) swing joint.

2. A sealing structure of a drain pump according to claim 1, wherein: a sealing ring is arranged on one side of the connecting ring (2), and a raw adhesive tape is arranged on the surface of the bolt (11).

3. A sealing structure of a drain pump according to claim 1, wherein: the surface of the sealing plate (5) is provided with a connecting bolt, and the surface of the connecting plate (3) is provided with a connecting groove.

4. A sealing structure of a drain pump according to claim 1, wherein: one side fixedly connected with gim peg (10) of protecting cover (7), the quantity of gim peg (10) is eight, eight gim peg (10) with the form of annular array with protecting cover (7) fixed connection.

5. A sealing structure of a drain pump according to claim 4, wherein: one side of the protecting cover (7) is movably connected with the sealing plate (5) through the fixing bolt (10).

6. A sealing structure of a drain pump according to claim 1, wherein: one end of the cover shell (9) is provided with a water inlet (12), and one side of the cover shell (9) is provided with a water outlet (13).