CN104092174A - Cable sealing device - Google Patents
Cable sealing device Download PDFInfo
- Publication number
- CN104092174A CN104092174A CN201410295483.2A CN201410295483A CN104092174A CN 104092174 A CN104092174 A CN 104092174A CN 201410295483 A CN201410295483 A CN 201410295483A CN 104092174 A CN104092174 A CN 104092174A
- Authority
- CN
- China
- Prior art keywords
- cable
- sealing
- terminal box
- pressing bolt
- wiring box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a cable sealing device which comprises an insulating cable, a first pressing bolt, a secondary wiring box, a second pressing bolt and a sealing ring. The insulating cable is arranged in a primary wiring box, and the first pressing bolt, the secondary wiring box, the second pressing bolt and the sealing ring are arranged on the insulating cable. A gasket and a packing ring are sequentially arranged under the first pressing bolt, the secondary wiring box is fixedly arranged under the primary wiring box, the insulating cable penetrates through the primary wiring box to enter the secondary wiring box, the second pressing bolt arranged on the insulating cable is arranged under the first pressing bolt, and the sealing ring is arranged between the second pressing bolt and the insulating cable. According to the cable sealing device, a sealing structure formed by the secondary wiring box, the second pressing bolt and the sealing ring is added to an existing cable sealing device, and the sealing structure and an original sealing structure can jointly form two face-to-face contact sealing systems. Thus, the service life of submersible electric pump cables is prolonged, and the using stability and the using reliability of the submersible electric pump cables are improved.
Description
Technical field
The present invention relates to a kind of sealing device, relate in particular to a kind of sealing device for submersible electric pump cable.
Background technology
Submersible pump is that a kind of asynchronous motor is coaxially connected with pump, a kind of novel product that electromechanics is combined as a whole.Along with greatly developing of motor, mechanical seal and control technology, submersible pump has also had development rapidly, and its use has related to the industry-by-industries such as agricultural, industrial and mineral, building.
But, submersible pump in use generally finds to exist some problems, its structure of existing cable sealing device as shown in Figure 1, what adopt is that piston ring (4) and cabtyre cable (1) jointly produce elasticity of compression distortion under the effect of generation pretightning force after hold-down bolt (2) locking, form the sealing system that one face contacts with face, such sealing effectiveness initial stage is more satisfactory, but along with the submersible pump prolongation of running time, piston ring and cabtyre cable sheath produce permanent compression set and compression stress relaxation, the difference of simultaneous submersible pump environment for use produces aging phenomenon, sealing rapid failure, and even inside and outside cable sealing device under the huge temperature difference and pressure differential effect in bad border, pumped (conveying) medium infiltrates along seal failure face the electric leakage that wire connection cavity causes, power consumption, motor is even burnt in short circuit, also may affect personal safety.
Summary of the invention
For the technical problem of above-mentioned existence, the object of the invention is: the cable sealing device that has proposed a kind of useful life that can improve submersible electric pump cable.
Technical solution of the present invention is achieved in that a kind of cable sealing device, comprises and is positioned at the insulated cable of elementary terminal box and is arranged on the first hold-down bolt on insulated cable, secondary terminal box, the second hold-down bolt and sealing ring; Described the first hold-down bolt below is provided with packing ring and piston ring successively; Described secondary terminal box is fixedly installed on elementary terminal box below; Described insulated cable enters into secondary terminal box through elementary terminal box; Described the first hold-down bolt below is provided with the second hold-down bolt being arranged on insulated cable; Between described the second hold-down bolt and insulated cable, be provided with sealing ring.
Preferably, described sealing ring is O type glue sealing ring.
Preferably, described elementary terminal box is fixedly connected with by lock-screw with secondary terminal box.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages:
A kind of cable sealing device of the present invention program, in existing cable sealing device, increase the new hermetically-sealed construction being formed by secondary terminal box, secondary hold-down bolt and sealing ring together, the sealing system that it is contacted with face with the common composition of original hermetically-sealed construction two road faces, thereby increase the useful life of submersible electric pump cable, and improved stability and reliability when submersible electric pump cable uses.
Brief description of the drawings
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
The structural representation of the cable sealing device that accompanying drawing 1 is prior art;
The structural representation that accompanying drawing 2 is cable sealing device of the present invention;
Wherein: 1, cabtyre cable; 2, hold-down bolt; 3, packing washer; 4, piston ring; 21, in elementary terminal box; 22, the first hold-down bolt; 23, packing ring; 24, piston ring; 25, secondary terminal box; 26, the second hold-down bolt; 27, sealing ring; 28, insulated cable; 30, lock-screw.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described.
Of the present invention a kind of cable sealing device as shown in Figure 2, comprises and is positioned at the insulated cable 28 of elementary terminal box 21 and is arranged on the first hold-down bolt 22 on insulated cable 28, secondary terminal box 25, the second hold-down bolt 26 and sealing ring 27; Described the first hold-down bolt 22 belows are provided with packing ring 23 and piston ring 24 successively; Described secondary terminal box 25 is fixedly installed on elementary terminal box 21 belows; Described insulated cable 28 enters into secondary terminal box 25 through elementary terminal box 21; Described the first hold-down bolt 22 belows are provided with the second hold-down bolt 26 being arranged on insulated cable 28; Between described the second hold-down bolt 26 and insulated cable 28, be provided with sealing ring 27; Described sealing ring 27 is O type glue sealing ring; Described elementary terminal box 21 is fixedly connected with by lock-screw 30 with secondary terminal box 25.
Cable sealing device of the present invention, on the basis of original hermetically-sealed construction, increase together by secondary terminal box, the hermetically-sealed construction of the second hold-down bolt and sealing ring, in the time that submersible pump is brought into use, on submersible electric pump cable except original hermetically-sealed construction seals, under the pretightning force that also can produce, produce strain after the second hold-down bolt locking, play the effect of the cable seal to submersible pump, thereby form the sealing system that twice face contacts with face with original hermetically-sealed construction, improve the sealing of submersible electric pump cable, can effectively prevent the generation of submersible pump infiltration phenomenon, and the submersible electric pump cable personal safety causing that seeps water, reliability and stability when submersible electric pump cable uses are improved, increase its useful life.
Cable sealing device of the present invention, it is simple in structure, easy to use, and processing cost is low, increases substantially the sealing of the submersible electric pump cable of knowing clearly, and has improved stability and the reliability of submersible electric pump cable.
Above-described embodiment is only explanation technical conceive of the present invention and feature; its object is to allow person skilled in the art can understand content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences that Spirit Essence is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (3)
1. a cable sealing device, comprises and is positioned at the insulated cable of elementary terminal box and is arranged on the first hold-down bolt on insulated cable; Described the first hold-down bolt below is provided with packing ring and piston ring successively, it is characterized in that: also comprise secondary terminal box, the second hold-down bolt and sealing ring; Described secondary terminal box is fixedly installed on elementary terminal box below; Described insulated cable enters into secondary terminal box through elementary terminal box; Described the first hold-down bolt below is provided with the second hold-down bolt being arranged on insulated cable; Between described the second hold-down bolt and insulated cable, be provided with sealing ring.
2. cable sealing device according to claim 1, is characterized in that: described sealing ring is O type glue sealing ring.
3. cable sealing device according to claim 1 and 2, is characterized in that: described elementary terminal box is fixedly connected with by lock-screw with secondary terminal box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410295483.2A CN104092174A (en) | 2014-06-26 | 2014-06-26 | Cable sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410295483.2A CN104092174A (en) | 2014-06-26 | 2014-06-26 | Cable sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104092174A true CN104092174A (en) | 2014-10-08 |
Family
ID=51639866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410295483.2A Pending CN104092174A (en) | 2014-06-26 | 2014-06-26 | Cable sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104092174A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE462249B (en) * | 1988-10-10 | 1990-05-21 | Flygt Ab | DEVICE FOR LOADING AND SEALING OF A CABLE PIPE |
| CN101453142A (en) * | 2007-12-07 | 2009-06-10 | 衡阳市大力成泵业制造有限责任公司 | Multilevel introducing and sealing device for diving generator cable |
| CN201656401U (en) * | 2010-01-27 | 2010-11-24 | 安徽正元机械有限公司 | Anti-leakage device for submersible cable |
| CN201682250U (en) * | 2010-05-27 | 2010-12-22 | 南京晨光集团有限责任公司 | Underwater optical cable and electric cable seal device |
| CN201690288U (en) * | 2010-02-11 | 2010-12-29 | 浙江临海电机有限公司 | Lead cable inside-outside dual sealing structure of submersible motor |
-
2014
- 2014-06-26 CN CN201410295483.2A patent/CN104092174A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE462249B (en) * | 1988-10-10 | 1990-05-21 | Flygt Ab | DEVICE FOR LOADING AND SEALING OF A CABLE PIPE |
| CN101453142A (en) * | 2007-12-07 | 2009-06-10 | 衡阳市大力成泵业制造有限责任公司 | Multilevel introducing and sealing device for diving generator cable |
| CN201656401U (en) * | 2010-01-27 | 2010-11-24 | 安徽正元机械有限公司 | Anti-leakage device for submersible cable |
| CN201690288U (en) * | 2010-02-11 | 2010-12-29 | 浙江临海电机有限公司 | Lead cable inside-outside dual sealing structure of submersible motor |
| CN201682250U (en) * | 2010-05-27 | 2010-12-22 | 南京晨光集团有限责任公司 | Underwater optical cable and electric cable seal device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2643511C2 (en) | Mobile sealing system of movable action | |
| KR101604881B1 (en) | Water-proof insulation connector | |
| CN103474828A (en) | High-temperature and high-pressure sealing electric connector | |
| GB2495461A (en) | Pressure mitigating dielectric debris seal for pothead interface | |
| CN201601000U (en) | Waterproof submersible transformer | |
| CN104092174A (en) | Cable sealing device | |
| CN103746219A (en) | Sealed change-over connector used for ultralow temperature environment and manufacturing method thereof | |
| CN103811172B (en) | Capacitor cover plate assembly | |
| CN203289244U (en) | Sealing device for cable lead-out wire of submersible sewage pump | |
| CN103227383A (en) | Watertight connector | |
| CN203812702U (en) | Oilpaper capacitance type transformer bushing | |
| CN103311705B (en) | Reinforced rubber filling type sealing T connecting terminal | |
| CN203339641U (en) | Sealing assembly for cable wire of electric pump | |
| CN203218581U (en) | Watertight connector | |
| CN204103131U (en) | A kind of automobile closed type connector | |
| CN205017147U (en) | Novel dampproofing and waterproofing motor | |
| CN202617547U (en) | Sealing and explosion-proof lead wire structure between enclosed or narrow operation spaces | |
| CN202084468U (en) | Solid-sealing pole rod | |
| KR20170118263A (en) | A underwater Cable junction box | |
| CN105647407A (en) | Waterproof insulating rubber tape for electric cables | |
| CN104659551A (en) | Directly-inserted type water sealing connector | |
| CN102623838A (en) | Electrical connector capable of realizing plugging and unplugging underwater | |
| CN201278403Y (en) | Electric connector with sealing structure | |
| CN203416088U (en) | Generator outlet wire sleeve sealing structure | |
| CN206490232U (en) | A kind of water pump interface water-tight device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141008 |
|
| RJ01 | Rejection of invention patent application after publication |