CN217814017U - Sealing structure of water pump top cover and cable - Google Patents
Sealing structure of water pump top cover and cable Download PDFInfo
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- CN217814017U CN217814017U CN202222079861.6U CN202222079861U CN217814017U CN 217814017 U CN217814017 U CN 217814017U CN 202222079861 U CN202222079861 U CN 202222079861U CN 217814017 U CN217814017 U CN 217814017U
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- sheath
- pump top
- cable conductor
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Abstract
The utility model belongs to the technical field of the water pump, refer in particular to a seal structure of water pump top cap and cable conductor, including water pump top cap and cable conductor, be equipped with the sheath of suit on the cable conductor between water pump top cap and the cable conductor, the outer lane of sheath is equipped with annular arch, be equipped with on the water pump top cap and carry out down spacing installation boss to annular arch, the bellied lower terminal surface of annular is contradicted with the up end of installation boss and is sealed, and the nut spiro union is on the water pump top cap and compress tightly on annular arch through the pressure washer, the bellied up end of annular is by the truncated external conical surface that the diameter diminishes from bottom to top, the lower terminal surface of pressure washer is the truncated internal conical surface with truncated external conical surface looks adaptation, it has epoxy to fill between sheath lower extreme and the cable conductor, epoxy's up end is higher than the up end of pressure washer. The utility model discloses can effectively seal the clearance between water pump top cap and the cable conductor, effectively prevent into water, and then improve water pump life.
Description
The technical field is as follows:
the utility model belongs to the technical field of the water pump, refer in particular to a seal structure of water pump top cap and cable conductor.
Background art:
due to the use environment of the deep well pump in water operation, the requirement on the sealing grade is high. The motor needs to be placed in water together with the water pump main body, and once the motor enters water, the motor burns out. The top of water pump main part is generally arranged in to the motor, and the cable conductor of motor stretches out the water pump top cap and connects the power, and the junction of cable conductor and water pump top cap is sealed not well, and inside water pump can be got into from the clearance of cable conductor and water pump top cap.
The invention content is as follows:
the utility model aims at providing a seal structure of water pump top cap and cable conductor, its clearance that can effectively seal between water pump top cap and the cable conductor prevents effectively into water, and then improves water pump life.
The utility model discloses a realize like this:
the utility model provides a seal structure of water pump top cap and cable conductor, includes water pump top cap and cable conductor, be equipped with the sheath of suit on the cable conductor between water pump top cap and the cable conductor, the outer lane of sheath is equipped with the annular arch, be equipped with on the water pump top cap and carry out spacing installation boss down to the annular arch, the bellied lower terminal surface of annular is contradicted with the up end of installation boss and is sealed, and the bellied top of annular is equipped with pressure washer and the nut of suit on the sheath in proper order, and the nut spiro union compresses tightly on the water pump top cap and on the annular arch through pressure washer, the bellied up end of annular is the truncated external conical surface that diminishes for from lower up diameter, pressure washer's lower terminal surface is the truncated internal conical surface with truncated external conical surface looks adaptation, it has epoxy to fill between sheath lower extreme and the cable conductor, epoxy's up end is higher than pressure washer's up end.
In the sealing structure of the water pump top cover and the cable, the annular protrusion and the sheath are of an integral structure, and the mounting boss and the water pump top cover are of an integral structure.
In the sealing structure of the water pump top cover and the cable conductor, a gap is reserved between the sheath above the epoxy glue and the cable conductor, and the inner ring of the sheath protrudes inwards to form a clamping protrusion which is abutted against the cable conductor.
In the sealing structure of the water pump top cover and the cable, the clamping protrusions are circumferentially and continuously distributed in a ring shape.
In the above sealing structure for the water pump top cover and the cable conductor, the contact surface of the clamping protrusion and the cable conductor is an outward convex cambered surface, and the clamping protrusion and the sheath are transited through the cambered surface.
In the above sealing structure for the water pump top cover and the cable conductor, the convex arc surface is a convex arc surface, and the arc surface is an arc surface.
In the sealing structure of the water pump top cover and the cable conductor, the distance from the upper end surface of the epoxy adhesive to the upper end surface of the pressing gasket is 1-2 mm.
In foretell seal structure of water pump top cap and cable conductor, the sheath lower extreme is equipped with mounting groove, the epoxy glue sets up in mounting groove, and the up end that the epoxy was glued contradicts with mounting groove's lower terminal surface and seals.
In the sealing structure of the water pump top cover and the cable, the nut is made of copper.
Compared with the prior art, the utility model has the outstanding advantages that:
1. the nut of the utility model is pressed tightly on the annular bulge through the pressing washer, so that the annular bulge is pressed tightly on the mounting boss, the lower end surface of the annular bulge and the upper end surface of the mounting boss are effectively sealed, and water is effectively prevented from entering from the gap between the sheath and the water pump top cover; epoxy glue is filled between the lower end of the sheath and the cable, so that water is effectively prevented from entering a gap between the sheath and the cable; the upper end face of the annular bulge is a truncated outer conical surface with the diameter reduced from bottom to top, the lower end face of the compression washer is a truncated inner conical surface matched with the truncated outer conical surface, the compression washer compresses the annular bulge downwards by downward compression force on the annular bulge, and simultaneously has extrusion force towards the inner ring on the annular bulge, the upper end face of the epoxy glue is higher than the upper end face of the compression washer, the epoxy glue is held tightly by the extrusion force, the epoxy glue sealing effect is good, and the epoxy glue is not easy to fall off; the utility model can effectively seal the gap between the top cover of the water pump and the cable, effectively prevent water from entering, and further prolong the service life of the water pump;
2. the utility model discloses leave the clearance between the sheath of annular arch top and the cable conductor, the inside protruding chucking that has the conflict cable conductor of sheath inner circle is protruding, and the chucking arch is hugged closely on the cable conductor, prevents effectively that the cable conductor relative slip, simultaneously is convenient for process and assembly.
Description of the drawings:
fig. 1 is a sectional view of the present invention.
Reference numerals: 1. a water pump top cover; 2. a cable wire; 3. a sheath; 4. an annular projection; 5. mounting a boss; 6. a compression washer; 7. a nut; 8. epoxy glue; 9. the clamping bulge.
The specific implementation mode is as follows:
the invention will now be further described with reference to specific embodiments, with reference to fig. 1:
the utility model provides a seal structure of water pump top cap and cable conductor, includes water pump top cap 1 and cable conductor 2, be equipped with sheath 3 of suit on cable conductor 2 between water pump top cap 1 and the cable conductor 2, the outer lane of sheath 3 is equipped with annular arch 4, be equipped with on the water pump top cap 1 and carry out down spacing installation boss 5 to annular arch 4, the lower terminal surface of annular arch 4 is contradicted with the up end of installation boss 5 and is sealed, and annular arch 4 top is equipped with gland washer 6 and nut 7 of suit on sheath 3 in proper order, and nut 7 spiro union is on water pump top cap 1 and compresses tightly on annular arch 4 through gland washer 6, the up end of annular arch 4 is the truncated external cone face that diminishes for up diameter down, gland washer 6's lower terminal surface is the truncated external cone face with truncated external cone face looks adaptation, it has epoxy 8 to fill between 3 lower extremes of sheath and cable conductor 2, epoxy 8's up end is higher than gland washer 6 up end.
As shown in fig. 1, the sheath 3 of the present invention can effectively protect the cable 2 from rubbing against the water pump top cap 1 and from bending damage; the nut 7 is pressed on the annular bulge 4 through the pressing washer 6, so that the annular bulge 4 is pressed on the mounting boss 5, the lower end face of the annular bulge 4 and the upper end face of the mounting boss 5 are effectively sealed, and water is effectively prevented from entering from a gap between the sheath 3 and the water pump top cover 1; epoxy glue 8 is filled between the lower end of the sheath 3 and the cable 2, so that water is effectively prevented from entering from a gap between the sheath 3 and the cable 2; the upper end surface of the annular bulge 4 is a truncated external conical surface with the diameter reduced from bottom to top, the lower end surface of the compression washer 6 is a truncated internal conical surface matched with the truncated external conical surface, the compression washer 6 compresses the annular bulge 4 downwards under the downward pressing force of the compression washer 6, and simultaneously compresses the annular bulge 4 with the extrusion force of the inner ring to the annular bulge 4, the upper end surface of the epoxy glue 8 is higher than the upper end surface of the compression washer 6, the epoxy glue 8 is tightly held by the extrusion force, the sealing effect of the epoxy glue 8 is good, and compared with the situation that the epoxy glue 8 is arranged below the compression washer 6 and is easily extruded by the pressing force of the compression washer 6, the utility model discloses the epoxy glue 8 is not easy to be separated; furthermore the utility model discloses the epoxy glue 8 is big with the area of contact of sheath 3, cable conductor 2, and frictional force is big, has effectively improved the problem that the epoxy glue 8 drops because of temperature variation or dragging.
The utility model can effectively seal the gap between the top cover of the water pump and the cable, effectively prevent water from entering, and further prolong the service life of the water pump; meanwhile, the structure is simple, the production and the processing are flexible, and the production efficiency is high.
In order to ensure the firmness of connection and reduce the assembly steps, the annular bulge 4 and the sheath 3 are of an integrated structure, and the mounting boss 5 and the water pump top cover 1 are of an integrated structure.
In order to prevent the cable 2 from moving relative to the sheath 3 to cause water inflow and facilitate processing and assembly, a gap is reserved between the sheath 3 above the epoxy glue 8 and the cable 2, and a clamping protrusion 9 which is abutted against the cable 2 protrudes inwards from the inner ring of the sheath 3. The clamping bulge 9 is tightly attached to the cable 2, so that the relative sliding of the cable 2 is effectively prevented. If the whole first half section of sheath 3 and cable conductor 2 interference fit, have higher to the size precision requirement, be not convenient for process, longer distance's interference fit simultaneously, the assembly is difficult.
For better clamping effect, the clamping protrusions 9 are circumferentially and continuously distributed in a ring shape.
For better clamping effect, the contact surface of the clamping bulge 9 and the cable 2 is an outer convex cambered surface, and the clamping bulge 9 and the sheath 3 are transited through an arc-shaped surface. Simple structure and convenient processing.
Preferably, the convex arc surface is a convex arc surface, and the arc surface is an arc surface.
Preferably, the distance between the upper end face of the epoxy glue 8 and the upper end face of the compression washer 6 is 1mm-2mm.
Epoxy glue 8's mounting structure: the 3 lower extremes of sheath are equipped with mounting groove, epoxy glue 8 sets up in mounting groove, and epoxy glue 8's up end is contradicted with mounting groove's lower terminal surface and is sealed.
In order to prevent the nut 7 from rusting and failing, the material of the nut 7 is copper.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a seal structure of water pump top cap and cable conductor, includes water pump top cap (1) and cable conductor (2), its characterized in that: be equipped with sheath (3) of suit on cable conductor (2) between water pump top cap (1) and cable conductor (2), the outer lane of sheath (3) is equipped with annular protrusion (4), be equipped with on water pump top cap (1) and carry out down spacing installation boss (5) to annular protrusion (4), the lower terminal surface of annular protrusion (4) is contradicted with the up end of installation boss (5) and is sealed, annular protrusion (4) top is equipped with packing ring (6) and nut (7) of suit on sheath (3) in proper order, nut (7) spiro union is on water pump top cap (1) and compresses tightly on annular protrusion (4) through packing ring (6), the up end of annular protrusion (4) is the truncated external cone face that diminishes for up diameter down, the lower terminal surface of packing ring (6) is the truncated top face with truncated external cone looks adaptation, it has epoxy (8) to fill between sheath (3) lower extreme and cable conductor (2), the up end of epoxy (8) is higher than the up end face of packing ring (6).
2. The sealing structure for the top cover and the cable of the water pump as claimed in claim 1, wherein: a gap is reserved between the sheath (3) above the epoxy glue (8) and the cable (2), and a clamping protrusion (9) which is abutted against the cable (2) protrudes inwards from the inner ring of the sheath (3).
3. The sealing structure of the water pump top cover and the cable line according to claim 2, characterized in that: the clamping bulges (9) are circumferentially and continuously distributed in a ring shape.
4. The sealing structure of the water pump top cover and the cable line according to claim 2, characterized in that: the contact surface of the clamping protrusion (9) and the cable (2) is an outward convex cambered surface, and the clamping protrusion (9) and the sheath (3) are in transition through an arc-shaped surface.
5. The sealing structure of the water pump top cover and the cable line according to claim 1, characterized in that: the distance between the upper end face of the epoxy glue (8) and the upper end face of the compression washer (6) is 1-2 mm.
6. The sealing structure of the water pump top cover and the cable line according to claim 1, characterized in that: the lower end of the sheath (3) is provided with a mounting groove, the epoxy glue (8) is arranged in the mounting groove, and the upper end face of the epoxy glue (8) is abutted against and sealed with the lower end face of the mounting groove.
7. The sealing structure for the top cover and the cable of the water pump as claimed in claim 1, wherein: the nut (7) is made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222079861.6U CN217814017U (en) | 2022-08-08 | 2022-08-08 | Sealing structure of water pump top cover and cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222079861.6U CN217814017U (en) | 2022-08-08 | 2022-08-08 | Sealing structure of water pump top cover and cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217814017U true CN217814017U (en) | 2022-11-15 |
Family
ID=83975150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222079861.6U Active CN217814017U (en) | 2022-08-08 | 2022-08-08 | Sealing structure of water pump top cover and cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217814017U (en) |
-
2022
- 2022-08-08 CN CN202222079861.6U patent/CN217814017U/en active Active
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