CN212649069U - Cable sealing structure of submersible pump - Google Patents
Cable sealing structure of submersible pump Download PDFInfo
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- CN212649069U CN212649069U CN202021879092.2U CN202021879092U CN212649069U CN 212649069 U CN212649069 U CN 212649069U CN 202021879092 U CN202021879092 U CN 202021879092U CN 212649069 U CN212649069 U CN 212649069U
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- submersible pump
- sealing
- annular flange
- sealing sheath
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Abstract
The utility model discloses a cable sealing structure of a submersible pump, which comprises a middle sealing sheath, a lower sealing sheath and an epoxy sealant triple waterproof sealing structure filled between the middle sealing sheath and the lower sealing sheath, wherein the middle sealing sheath is sleeved on the middle part of the cable and is fixed on the upper end surface of a wire passing hole of a water outlet structure body of the submersible pump through an upper pressure plate; the lower sealing sheath is sleeved at the lower part of the cable and is fixed on the lower end surface of the wire passing hole of the water outlet structure body of the submersible pump through the lower pressing plate; and epoxy sealant is filled around the cable between the middle sealing sheath and the lower sealing sheath. The utility model discloses, adopted triple sealing waterproof construction to carry out waterproof sealing to the cable that is located the water structure of immersible pump, improved the waterproof sealing effect of cable greatly, reduced the fault rate, improved life.
Description
Technical Field
The utility model relates to a immersible pump technical field, concretely relates to cable seal structure of immersible pump.
Background
The submersible pump is used for extracting underground water from deep wells, and can also be used for water extraction projects such as rivers, reservoirs, water channels and the like. The method is widely applied to the fields of farmland irrigation, urban, factory, railway, mine, construction site drainage and the like.
When the submersible pump is used, the whole unit is submerged to work, the motor is arranged in the pump body, and the cable extends out of the pump head of the submersible pump and then is connected to a power supply device on the ground for supplying power. Therefore, a waterproof sealing structure between the cable and the pump head of the submersible pump is very important, and the motor or the control board can be failed once the sealing is failed.
The cable sealing of the existing submersible pump is usually realized by adopting a sealing ring, so that the existing submersible pump has larger water inlet invasion risk.
In view of this, it is urgently needed to improve the cable sealing structure of the existing submersible pump so as to improve the sealing effect and prolong the service life.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that there is great problem of intaking leakage risk in the cable seal structure of current immersible pump.
In order to solve the technical problem, the utility model provides a technical scheme who adopts provides a cable seal structure of immersible pump, include:
the middle sealing sheath is sleeved in the middle of the cable and is fixed on the upper end face of the wire passing hole of the water outlet structure body of the submersible pump through the upper pressing plate;
the lower sealing sheath is sleeved at the lower part of the cable and is fixed on the lower end surface of the wire passing hole of the water outlet structure body of the submersible pump through the lower pressing plate;
and epoxy sealant is filled around the cable between the middle sealing sheath and the lower sealing sheath.
In the scheme, the middle part of the middle sealing sheath is provided with an annular flange, an upper shaft sleeve is arranged above the annular flange, a lower shaft sleeve is arranged below the annular flange, and the diameters of the upper shaft sleeve and the lower shaft sleeve are smaller than that of the annular flange.
In the above scheme, the upper part of the wire passing hole of the water outlet structure body is a step hole with a large upper part and a small lower part, the annular flange is inserted into the step hole, and the upper pressure plate is pressed against the top surface of the annular flange.
In the above scheme, an annular boss is arranged on the inner wall of the lower part of the wire passing hole, the bottom surface of the annular boss is in a conical hole shape to form a conical hole, and a conical table top is arranged at the top of the lower sealing sheath and is matched with the conical hole.
In the above scheme, the submersible pump further comprises a cable outlet protective sleeve which is sleeved on the upper portion of the cable and fixed at the cable outlet on the top surface of the upper cover of the submersible pump, and the cable outlet protective sleeve is used for fixing the cable and preventing the cable from being cut.
In the above scheme, the middle part of the cable outlet protective sleeve is provided with an annular groove for clamping and assembling with a cable outlet on the top surface of an upper cover of the submersible pump.
In the above scheme, the outer edge of the top surface of the cable outgoing protective sleeve is provided with a fillet transition cambered surface.
Compared with the prior art, the utility model provides a cable seal structure of immersible pump has adopted the triple sealing waterproof construction of well sealed sheath, lower sealed sheath and epoxy sealant, carries out waterproof sealing to the cable that lies in the water structure of immersible pump, has improved the waterproof sealing effect of cable greatly, has reduced the fault rate, has improved life.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the present invention with the upper cover removed;
fig. 3 is a cross-sectional view of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
fig. 5 is a schematic view of the middle sealing sheath of the present invention;
fig. 6 is a schematic view of a wire passing hole on the middle water outlet structure body of the present invention;
fig. 7 is a schematic view of the middle upper cover of the present invention.
The relationship between each reference number and the component name in fig. 1 to 7 is as follows:
10 cable outgoing protective sleeves, 40 middle sealing protective sleeves, 70 lower sealing protective sleeves, 90 epoxy sealant, 20 cables, 11 annular grooves, 31 cable outlets, 32 water outlet pipe openings, 50 upper pressing plates, 60 water outlet structural bodies, 70 lower sealing protective sleeves, 80 lower pressing plates, 41 upper shaft sleeves, 42 annular flanges, 43 lower shaft sleeves, 61 stepped holes, 62 annular bosses, 63 conical holes and 71 conical table surfaces.
Detailed Description
The utility model provides a cable seal structure of immersible pump has adopted triple sealing waterproof construction, has improved the waterproof sealing effect of cable greatly, has reduced the fault rate, has improved life. The invention is described in detail below with reference to the drawings and the detailed description.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the utility model provides a cable sealing structure of submersible pump, including cable outgoing line protective sheath 10, well sealed sheath 40, lower sealed sheath 70 and the epoxy sealant 90 that pours between well sealed sheath 40 and lower sealed sheath 70.
The cable outgoing protective sleeve 10 is made of metal and is sleeved on the upper portion of the cable 20, an annular groove 11 is formed in the middle of the cable outgoing protective sleeve 10, as shown in fig. 7, a cable outlet 31 and a water outlet pipe opening 32 are formed in the top surface of an upper cover 30 of the submersible pump, the cable outlet 31 is communicated with the water outlet pipe opening 32 through a through groove with the same diameter as the cable outlet 31, and the cable outgoing protective sleeve 10 is inserted into the cable outlet 31 through the through groove, so that the cable outlet 31 is clamped in the annular groove 11 and fixed.
The cable outgoing protective sleeve 10 plays a role in auxiliary positioning and limiting the cable 20, the cable is prevented from being pulled and damaged, meanwhile, a fillet transition arc surface is arranged on the outer edge of the top of the cable outgoing protective sleeve 10, the outer surface of the cable cannot be cut when the cable is bent, and safety performance is improved.
The middle sealing sheath 40 is sleeved on the middle part of the cable 20 and is fixed on the upper end surface of the wire passing hole of the water outlet structure 60 of the pump head of the submersible pump through the upper pressure plate 50.
The lower sealing sheath 70 is sleeved on the lower part of the cable 20 and fixed on the lower end surface of the wire passing hole of the water outlet structure 60 of the pump head of the submersible pump through the lower pressing plate 80.
As shown in fig. 4, epoxy sealant 90 is poured around the cable 20 between the middle sealing sheath 40 and the lower sealing sheath 70. Thus, even if a small amount of water enters from the lower sealing sheath 70, the epoxy sealant 90 can prevent the water from entering upwards, and the sealing and waterproof performance is enhanced.
The middle sealing boot 40, the epoxy sealant 90, and the lower sealing boot 70 form a triple-seal waterproof structure.
As shown in fig. 5, the middle part of the middle sealing sheath 40 is provided with an annular flange 42, an upper shaft sleeve 41 is arranged above the annular flange 42, and the diameter of the upper shaft sleeve 41 is smaller than that of the annular flange 42; below the annular flange 42 there is a lower bushing 43, the diameter of the lower bushing 43 being smaller than the diameter of the annular flange 42.
As shown in fig. 3 and 6, the upper portion of the wire passing hole of the water outlet structure 60 is a stepped hole 61 with a large top and a small bottom, the annular flange 42 is inserted into the stepped hole 61 of the water outlet structure 60, the upper pressing plate 50 is pressed against the top surface of the annular flange 42, the middle sealing sheath 40 is fixed by the upper pressing plate 50, and the middle sealing sheath 40 and the cable 20 are fixed into a whole, so that the cable 20 can be firmly fixed in the wire passing hole, and the connection between the lower end of the cable and the control panel is prevented from being damaged by pulling.
An annular boss 62 is arranged on the inner wall of the lower part of the wire passing hole, and the bottom surface of the annular boss 62 is in a conical hole shape to form a conical hole 63. The top of the lower sealing sheath 70 has a conical surface 71, and the conical surface 71 is matched with the conical hole 63 on the bottom surface of the annular boss 62. The lower sealing sheath 70 is inserted into the lower portion of the wire passing hole from the bottom to the top and is fixed by a lower pressing plate 80. The cooperation of taper hole 63 and frustum face 71 has improved sealed effect on the one hand, and on the other hand also plays the automatic guide effect to sealed sheath 70 down, appears off-centre damage or life-span when avoiding sealed sheath 70 to install down.
The utility model discloses, through triple waterproof sealing structure, improved the water-proof effects of cable, reduce the emergence of trouble, prolonged the life of motor.
The present invention is not limited to the above-mentioned best mode, and any person should learn the structural change made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.
Claims (7)
1. A cable sealing structure of a submersible pump, comprising:
the middle sealing sheath is sleeved in the middle of the cable and is fixed on the upper end face of the wire passing hole of the water outlet structure body of the submersible pump through the upper pressing plate;
the lower sealing sheath is sleeved at the lower part of the cable and is fixed on the lower end surface of the wire passing hole of the water outlet structure body of the submersible pump through the lower pressing plate;
and epoxy sealant is filled around the cable between the middle sealing sheath and the lower sealing sheath.
2. The cable sealing structure of a submersible pump according to claim 1, wherein the middle part of the middle sealing sheath has an annular flange, the annular flange has an upper boss above the annular flange, the annular flange has a lower boss below the annular flange, and the upper boss and the lower boss each have a diameter smaller than that of the annular flange.
3. The cable sealing structure of the submersible pump according to claim 2, wherein the upper part of the wire passing hole of the water outlet structure body is a stepped hole with a large upper part and a small lower part, the annular flange is inserted into the stepped hole, and the upper pressure plate is pressed against the top surface of the annular flange.
4. The cable sealing structure of the submersible pump according to claim 2, wherein an annular boss is provided on an inner wall of a lower portion of the wire passing hole, a bottom surface of the annular boss is in a tapered hole shape to form a tapered hole, a tapered table surface is provided on a top portion of the lower sealing sheath, and the tapered table surface is adapted to the tapered hole.
5. The cable sealing structure of the submersible pump according to claim 1, further comprising a cable outlet protective sleeve which is sleeved on the upper portion of the cable and fixed at a cable outlet on the top surface of the upper cover of the submersible pump, for fixing the cable and preventing the cable from being cut.
6. The cable sealing structure of the submersible pump according to claim 5, wherein the cable outlet protective sleeve has an annular groove in the middle for snap-fitting with a cable outlet on the top surface of an upper cover of the submersible pump.
7. The cable sealing structure of the submersible pump according to claim 5, wherein the outer edge of the top surface of the cable outlet protective sleeve is provided with a rounded transition cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021879092.2U CN212649069U (en) | 2020-09-01 | 2020-09-01 | Cable sealing structure of submersible pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021879092.2U CN212649069U (en) | 2020-09-01 | 2020-09-01 | Cable sealing structure of submersible pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212649069U true CN212649069U (en) | 2021-03-02 |
Family
ID=74762065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021879092.2U Active CN212649069U (en) | 2020-09-01 | 2020-09-01 | Cable sealing structure of submersible pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212649069U (en) |
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2020
- 2020-09-01 CN CN202021879092.2U patent/CN212649069U/en active Active
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