CN212296997U - Light-weight corrosion-resistant submersible pump - Google Patents
Light-weight corrosion-resistant submersible pump Download PDFInfo
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- CN212296997U CN212296997U CN202020820646.5U CN202020820646U CN212296997U CN 212296997 U CN212296997 U CN 212296997U CN 202020820646 U CN202020820646 U CN 202020820646U CN 212296997 U CN212296997 U CN 212296997U
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Abstract
The utility model discloses a light-weight corrosion-resistant submersible pump, a motor and an impeller are arranged in a shell, the shell comprises an upper shell, a barrel, a connecting disc and a lower shell which are sequentially connected from top to bottom, the lower shell is provided with a water inlet and a water outlet, and a pump cavity communicated with the water inlet and the water outlet is formed in the lower shell; the motor is arranged in the cylinder, and a rotating shaft of the motor penetrates through the connecting disc and extends into a pump cavity of the lower shell to be fixedly connected with the impeller; the upper shell, the connecting disc and the lower shell are all made of corrosion-resistant plastic through injection molding, a sealing cover with a shaft hole is arranged between the lower shell and the connecting disc, a rotating shaft of the motor penetrates through the sealing cover through the shaft hole, and a bearing sleeved on the rotating shaft is arranged in the shaft hole; an extension part protruding towards the pump cavity side is formed on one side, close to the lower shell, of the shaft hole, a sealing groove is formed in the end face, close to the pump cavity, of one side of the extension part, and a first sealing ring is arranged on the sealing groove.
Description
Technical Field
The utility model belongs to the technical field of the immersible pump, refer in particular to a light weight corrosion-resistant immersible pump.
Background
The lower shell with the pump cavity of the traditional submersible pump is made of metal, so that the traditional submersible pump is heavy in weight and high in manufacturing cost, and is not beneficial to production of enterprises; the inner wall of the pump cavity made of metal is extremely easy to corrode when being used in seawater or other corrosive sewage, so that the application range and the service life of the submersible pump are reduced; and the sealing effect of the existing submersible pump is not good.
Disclosure of Invention
The utility model aims to provide a simple structure, light in weight can be used for the immersible pump in the environment such as sea water to the not enough of prior art existence.
In order to achieve the above purpose, the utility model provides a following technical scheme: a light-weight corrosion-resistant submersible pump comprises a motor and an impeller in a shell, wherein the shell comprises an upper shell, a cylinder, a connecting disc and a lower shell which are sequentially connected from top to bottom, the lower shell is provided with a water inlet and a water outlet, and a pump cavity communicated with the water inlet and the water outlet is formed in the lower shell; the motor is arranged in the cylinder, and a rotating shaft of the motor penetrates through the connecting disc and extends into a pump cavity of the lower shell to be fixedly connected with the impeller; the upper shell, the connecting disc and the lower shell are all plastic parts formed by injection molding of corrosion-resistant plastics, a sealing cover with a shaft hole is arranged between the lower shell and the connecting disc, a rotating shaft of the motor penetrates through the sealing cover through the shaft hole, and a bearing sleeved on the rotating shaft is arranged in the shaft hole; one side of the shaft hole close to the lower shell is provided with an extension part protruding towards the pump cavity side, the extension part is provided with a sealing groove on the end face close to one side of the pump cavity, and a first sealing ring is arranged on the sealing groove. The sealing cover and the extending part are both formed by injection molding of corrosion-resistant plastics.
By adopting the technical scheme, the upper shell, the connecting disc and the lower shell which are made of corrosion-resistant plastics can ensure that the submersible pump can be used in seawater or other corrosive sewage, and the pump body made of plastic can greatly reduce the overall quality of the submersible pump and reduce the production cost; and the sealing ring is arranged to ensure the sealing performance of the submersible pump.
The utility model discloses further set up to: the extension part is in threaded connection with the sealing cover, and a pressing piece for pressing the first sealing ring is in threaded connection with one end of the extension part close to the pump cavity.
By adopting the technical scheme, the extending part is in threaded connection with the sealing cover, so that the sealing cover is convenient to disassemble and maintain; one end of the extending part close to the pump cavity is in threaded connection with a pressing piece for pressing the first sealing ring, so that the first sealing ring can be prevented from shifting, and the integral sealing effect of the submersible pump is ensured.
The utility model discloses further set up to: the bottom of the sealing groove is conical; a sealing inclined plane which is matched similarly is formed on one side of the first sealing ring close to the bottom of the sealing groove; and a plurality of sealing convex rings are uniformly arranged on the inner annular surface of the first sealing ring.
By adopting the technical scheme, the bottom of the sealing groove is conical, and a sealing inclined plane which is similar to the first sealing ring is formed on one side of the first sealing ring close to the bottom of the sealing groove, so that the sealing effect between the first sealing ring and the extension part can be ensured; a plurality of sealing convex rings are evenly arranged on the inner annular surface of the first sealing ring, and the sealing convex rings are tightly pressed and attached to the rotating shaft to form a multi-sealing structure, so that the sealing effect is good.
The utility model discloses further set up to: a closed annular cavity is arranged in the sealing rubber ring along the annular direction, and inert gas is filled in the annular cavity and is nitrogen; a polytetrafluoroethylene layer is arranged on the inner ring surface of the sealing rubber ring; and a V-shaped annular groove is formed in the periphery of the rotating shaft, which is close to the end face of one side of the sealing rubber ring, which is far away from the extension part.
By adopting the technical scheme, the sealing rubber ring is internally provided with the closed annular cavity along the annular direction, the annular cavity is filled with the inert gas, the friction between the rotating shaft and the sealing ring generates heat, and the inert gas expands under the heating condition, so that the sealing rubber ring is more tightly attached to the motor shaft and the fixed ring sleeve, and the sealing effect is better; a polytetrafluoroethylene layer is arranged on the inner ring surface of the sealing rubber ring, so that the wear resistance of the first sealing ring is improved; on the lateral surface terminal surface that the extension was kept away from to the sealing rubber circle, be close to the periphery department of rotation axis is provided with the V-arrangement annular for when first sealing washer received outside liquid oppression, the expanded bigger of annular 44, sealed effect is better.
The utility model discloses further set up to: and a soft metal net distributed along the outline of the outer ring surface is arranged on the inner side of the outer ring surface of the first sealing ring close to the sealing groove.
Through adopting foretell technical scheme, be provided with soft metal mesh at first sealing washer inboard to can ensure the intensity of first sealing washer, and then improve the life of first sealing washer.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at I;
reference numbers in the drawings and corresponding part names: the sealing structure comprises an impeller 1, an upper shell 2, a cylinder 3, a connecting disc 4, a lower shell 5, a sealing cover 6, a rotating shaft 7, an extending part 8, a sealing groove 9, a first sealing ring 10, a pressing part 11, a sealing convex ring 12, a ring cavity 13, a polytetrafluoroethylene layer 14, a ring groove 15 and a soft metal net 16.
Detailed Description
An embodiment of the present invention is further explained with reference to fig. 1 to 3.
A light-weight corrosion-resistant submersible pump comprises a motor and an impeller 1 in a shell, wherein the shell comprises an upper shell 2, a cylinder 3, a connecting disc 4 and a lower shell 5 which are sequentially connected from top to bottom, the lower shell 5 is provided with a water inlet and a water outlet, and a pump cavity communicated with the water inlet and the water outlet is formed in the lower shell 5; the motor is arranged in the cylinder 3, and a rotating shaft 7 of the motor penetrates through the connecting disc 4 and extends into a pump cavity of the lower shell 5 to be fixedly connected with the impeller 1; the upper shell 2, the connecting disc 4 and the lower shell 5 are all made of corrosion-resistant plastic injection-molded plastic parts, a sealing cover 6 with a shaft hole is arranged between the lower shell 5 and the connecting disc 4, a rotating shaft 7 of the motor penetrates through the sealing cover 6 through the shaft hole, and a bearing sleeved on the rotating shaft 7 is arranged in the shaft hole; an extension part 8 protruding towards the pump cavity side is formed on one side of the shaft hole close to the lower shell 5, a sealing groove 9 is formed in the end face of one side, close to the pump cavity, of the extension part 8, and a first sealing ring 10 is arranged on the sealing groove 9. The sealing cover 6 and the extending part 8 are both formed by injection molding of corrosion-resistant plastics.
By adopting the technical scheme, the upper shell 2, the connecting disc 4 and the lower shell 5 which are made of corrosion-resistant plastics can ensure that the submersible pump can be used in seawater or other corrosive sewage, and the pump body made of plastic materials can greatly reduce the overall quality of the submersible pump and reduce the production cost; and the sealing ring is arranged to ensure the sealing performance of the submersible pump.
The utility model discloses further set up to: the extension part 8 is in threaded connection with the sealing cover 6, and a pressing part 11 for pressing the first sealing ring 10 is in threaded connection with one end of the extension part 8 close to the pump cavity.
By adopting the technical scheme, the extension part 8 is in threaded connection with the sealing cover 6, so that the disassembly and the maintenance are convenient; a pressing piece 11 for pressing the first sealing ring 10 is connected to one end of the extending part 8 close to the pump cavity in a threaded manner, so that the first sealing ring 10 can be prevented from being displaced, and the integral sealing effect of the submersible pump is ensured.
The utility model discloses further set up to: the bottom of the sealing groove 9 is conical; a sealing inclined plane which is matched similarly is formed on one side of the first sealing ring 10 close to the bottom of the sealing groove 9; a plurality of sealing convex rings 12 are uniformly arranged on the inner annular surface of the first sealing ring 10.
By adopting the technical scheme, the bottom of the sealing groove 9 is conical, and a sealing inclined plane which is similar to the first sealing ring 10 is formed on one side of the bottom of the sealing groove 9, so that the sealing effect between the first sealing ring 10 and the extension part 8 can be ensured; a plurality of sealing convex rings 12 are uniformly arranged on the inner annular surface of the first sealing ring 10, and the sealing convex rings 12 are tightly pressed and attached to the rotating shaft 7 to form a multi-sealing structure, so that the sealing effect is good.
The utility model discloses further set up to: a closed annular cavity 13 is arranged in the sealing rubber ring along the annular direction, and inert gas is filled in the annular cavity 13 and is nitrogen; a polytetrafluoroethylene layer 14 is arranged on the inner annular surface of the sealing rubber ring; a V-shaped ring groove 15 is arranged on the end face of one side of the sealing rubber ring far away from the extension part 8 and close to the periphery of the rotating shaft 7.
By adopting the technical scheme, the sealed annular cavity 13 is arranged in the sealed rubber ring along the annular direction, the inert gas is filled in the annular cavity 13, the friction between the rotating shaft 7 and the sealing ring generates heat, and the inert gas expands under the heating condition, so that the sealed rubber ring is more tightly attached to the motor shaft and the fixed ring sleeve, and the sealing effect is better; a polytetrafluoroethylene layer 14 is arranged on the inner annular surface of the sealing rubber ring, so that the wear resistance of the first sealing ring 10 is improved; on the sealing rubber circle kept away from one side terminal surface of extension 8, be close to the periphery department of rotation axis 7 is provided with V-arrangement ring groove 15 for when first sealing washer 10 received outside liquid oppression, ring groove 1544 is open bigger, and sealed effect is better.
The utility model discloses further set up to: and a soft metal mesh 16 distributed along the outline of the outer annular surface is arranged on the inner side of the outer annular surface of the first sealing ring 10 close to the sealing groove 9.
By adopting the above technical scheme, the soft metal mesh 16 is arranged on the inner side of the first sealing ring 10, so that the strength of the first sealing ring 10 can be ensured, and the service life of the first sealing ring 10 is further prolonged.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (4)
1. A light-weight corrosion-resistant submersible pump comprises a shell, and a motor and an impeller (1) which are arranged in the shell and provided with a rotating shaft (7), wherein the shell comprises an upper shell (2), a cylinder (3), a connecting disc (4) and a lower shell (5) which are sequentially connected from top to bottom, the lower shell (5) is provided with a water inlet and a water outlet, and a pump cavity communicated with the water inlet and the water outlet is formed in the lower shell (5); the motor is arranged in the cylinder (3), and a rotating shaft (7) of the motor penetrates through the connecting disc (4) and extends into a pump cavity of the lower shell (5) to be fixedly connected with the impeller (1); the method is characterized in that: the upper shell (2), the connecting disc (4) and the lower shell (5) are plastic parts formed by injection molding of corrosion-resistant plastics, a sealing cover (6) with a shaft hole is arranged between the lower shell (5) and the connecting disc (4), a rotating shaft (7) of the motor penetrates through the sealing cover (6) through the shaft hole, and a bearing sleeved on the rotating shaft (7) is arranged in the shaft hole; one side of the shaft hole close to the lower shell (5) is provided with an extension part (8) protruding towards the pump cavity side, the extension part (8) is provided with a sealing groove (9), and the sealing groove (9) is provided with a first sealing ring (10).
2. A lightweight, corrosion resistant submersible pump according to claim 1, wherein: the extension part (8) is in threaded connection with the sealing cover (6), and a pressing piece (11) pressing the first sealing ring (10) is in threaded connection with one end, close to the pump cavity, of the extension part (8).
3. A lightweight, corrosion resistant submersible pump according to claim 2, wherein: the bottom of the sealing groove (9) is conical; a sealing inclined plane which is matched similarly is formed on one side of the first sealing ring (10) close to the bottom of the sealing groove (9); and a plurality of sealing convex rings (12) are uniformly arranged on the inner annular surface of the first sealing ring (10).
4. A lightweight, corrosion resistant submersible pump according to claim 3, wherein: and a soft metal net (16) distributed along the outline of the outer ring surface is arranged on the inner side of the outer ring surface of the first sealing ring (10) close to the sealing groove (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020820646.5U CN212296997U (en) | 2020-05-15 | 2020-05-15 | Light-weight corrosion-resistant submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020820646.5U CN212296997U (en) | 2020-05-15 | 2020-05-15 | Light-weight corrosion-resistant submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212296997U true CN212296997U (en) | 2021-01-05 |
Family
ID=73968573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020820646.5U Active CN212296997U (en) | 2020-05-15 | 2020-05-15 | Light-weight corrosion-resistant submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212296997U (en) |
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2020
- 2020-05-15 CN CN202020820646.5U patent/CN212296997U/en active Active
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