CN105952658A - Submerged pump with cable sealing structure - Google Patents
Submerged pump with cable sealing structure Download PDFInfo
- Publication number
- CN105952658A CN105952658A CN201610552651.0A CN201610552651A CN105952658A CN 105952658 A CN105952658 A CN 105952658A CN 201610552651 A CN201610552651 A CN 201610552651A CN 105952658 A CN105952658 A CN 105952658A
- Authority
- CN
- China
- Prior art keywords
- cable
- motor
- core
- sealing structure
- conductive contact
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0693—Details or arrangements of the wiring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
- H02G15/1806—Heat shrinkable sleeves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to a submerged pump with a cable sealing structure. The submerged pump comprises a motor and a cable, wherein the cable is connected to the inside of a motor cavity; the motor end of the cable is matched with the motor through a rubber head in a sealed way; and the rubber head is matched with the cable at the motor end in a sealed way. The submerged pump is characterized in that each cable core in the cable section sealed by the rubber head is in a cut-off mode; each cable core forms electric connection at the cut-off part through a sealing structure; and sealing is formed between the rubber head and the sealing structure. The submerged pump has the effects that 1, the sealing structure is additionally arranged on the cable cladded by the rubber head, so that outside water and sundries cannot enter the motor inner cavity through the sealing structure regardless of the damage degree of the cable arranged outside the motor; the motor can normally work; and the occurrence of electric shock risk is prevented.
Description
Technical field
The present invention relates to a kind of immersible pump with hermetically-sealed cable structure.
Background technology
Submersible pump is that motor and immersible pump are combined together by structure design.During use, motor and immersible pump pull the plug work simultaneously.For ensureing that electric pump normally works, in addition to setting up sealing structure at the cooperation of part each to pump and motor, the cable being also required to motor conveying power supply needs also exist for good sealing property with correlated parts junction, enters water and other foreign material and there is the appearance of the serious adverse consequences such as electric shock risk, burn-down of electric motor in preventing motor cavity.
As shown in Figure 1, the sealing structure of the feed cable of existing submersible pump is: the motor side 6 at cable passes through mold cure rubber, make Rubber end 3 covering thread core insulation layer 2 and sheath 4 simultaneously, and form integrative-structure with the contact surface of core insulating barrier 2 and sheath 4, make between core insulating barrier 2 and Rubber end 3, gapless between sheath 4 and Rubber end 3, have good sealing shape.During assembling, the Rubber end 3 of sulfidization molding coordinates with motor top cover 7, is fixed on top cover by rubber by trip bolt 9 and pressing plate 8, owing to Rubber end 3 is elastomeric material, forms good sealing after compression with motor top cover.Under cable cover(ing) serviceable condition, electric pump can dive in water and normally works.
Cable penetrates motor cavity by cable installing hole and is connected with associated components, therefore, motor cavity is installed passage by cable and is connected with extraneous formation, owing to using above-mentioned sealing manual, and core insulating barrier is again a complete body from power end 5 to the motor side 6 of cable, therefore, motor cavity in theory for be seal, water, foreign material etc. will not be entered and cause fault.But; when the cable failure being positioned at outside motor, (protection sheath is damaged; or the breakage simultaneously of cable cover(ing) and core insulating barrier; or user cuts short cable when carrying out jumper on original cable; effective seal approach etc. is not taked in junction) time, water just can enter motor cavity by breakage along cable core insulating barrier, produce electric leakage electric shock dangerous; even result in electric pump cisco unity malfunction, burn-down of electric motor time serious.
Summary of the invention
It is an object of the invention to solve the problems referred to above of prior art existence and a kind of immersible pump with hermetically-sealed cable structure is provided, sealing structure set up by the cable of Rubber end cladding, cable regardless of outside motor is the most damaged, outside water, foreign material enter motor cavity all without by sealing structure, make motor normally work, prevent electric shock risk.
The above-mentioned technical purpose of the present invention mainly solves by the following technical programs: have the immersible pump of hermetically-sealed cable structure, including motor, the cable being connected in motor cavity, the motor side of described cable is coordinated with motor seal by Rubber end, described Rubber end coordinates with the cable seal of motor side, it is characterized in that every core in the cut cable that described Rubber end seals is clean cut system, every described core all forms electrical connection by sealing structure in truncated position, forms sealing between described Rubber end and sealing structure.
Setting up sealing structure on the cable of Rubber end cladding, the cable regardless of outside motor is the most damaged or increases cable, and the water of outside, foreign material, all without by sealing structure entrance motor cavity, make motor normally work, prevent electric shock risk.
As improving further and supplementing technique scheme, the present invention uses following technical measures: each described sealing structure includes conductive contact, it is nested with at the heat-shrinkable tube outside described conductive contact, the core end of truncated position is held at the two ends of described conductive contact respectively tightly, makes core form a conductive carrier the most coherent.Conductive contact uses conductive material to make.As a rule, in order to improve electric conductivity, select copper material.Can tightly embrace core end to improve conductive contact, the both ends of conductive contact are all in R shape.Core insulating barrier at the two ends of heat-shrinkable tube and two ends core is held tightly, and middle part acts on again conductive contact, it is possible to makes can tightly hold tightly between heat-shrinkable tube, core insulating barrier, core, conductive contact, prevents from getting loose.
Also including support, described support arranges three trepannings, the sealing structure on every described core is inserted in a described trepanning respectively, and described Rubber end is formed with described support and seals.Support is used for fixing each and seals structure use, reduces each and seals the possibility that structure moves, improves sealing.
The length of described support is more than the length of described sealing structure.Support can also be used to support sealing structure and prevents from sealing structure bending and damaging.
The core insulating barrier of described cable extends respectively to the two ends of conductive contact.Be conducive to heat-shrinkable tube can be fixed on core insulating barrier, prevent from producing between end and the heat-shrinkable tube of core insulating barrier gap, improve insulating properties, also improve the bend resistance intensity of core simultaneously, prevent core from fractureing.
Described heat-shrinkable tube is double-deck heat-shrinkable tube, the length of internal layer heat-shrinkable tube adapts with the length of conductive contact, outer layer heat-shrinkable tube has extension outside conductive contact, described core insulating barrier is in the extension described in the distribution of the two ends of conductive contact is inserted, and described extension holds described core insulating barrier tightly.
The sheath of described Rubber end cladding motor side and described support.The sheath and the support that make motor side are linked together by Rubber end, improve the bend resistance intensity of cable.
The invention have the benefit that 1, on the cable of Rubber end cladding, set up sealing structure, cable regardless of outside motor is the most damaged, outside water, foreign material enter motor cavity all without by sealing structure, make motor normally work, prevent electric shock risk.2, the core insulating barrier at the two ends of heat-shrinkable tube and two ends core is held tightly, and middle part acts on again conductive contact, it is possible to makes can tightly hold tightly between heat-shrinkable tube, core insulating barrier, core, conductive contact, prevents from getting loose.3, support sealing structure by support, prevent from sealing structure bending and damaging.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art corresponding to the present invention.
Fig. 2 is the structural representation of the present invention.
Fig. 3 is the structural representation of medium-height trestle of the present invention.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, technical scheme is described in further detail.
Embodiment: have the immersible pump of hermetically-sealed cable structure, as in figure 2 it is shown, include motor, the cable being connected in motor cavity, the motor side 6 of described cable is coordinated with motor seal by Rubber end 3, and described Rubber end 3 coordinates with the cable seal of motor side 6.Rubber end 3 is connected in motor top cover 7 by pressing plate 8, and pressing plate 8 is fixed together with motor pressing cover 7 by trip bolt 9.Owing to Rubber end is elastomeric material, having ductility, form good sealing after compression with motor top cover, coordinate with sealing between motor top cover, on the premise of cable can seal and not intake, can pull the plug normal work.
Every core 1 in the cut cable that described Rubber end 3 seals is clean cut system, and every described core 1 all forms electrical connection by sealing structure in truncated position, forms sealing between described Rubber end 3 and sealing structure.It in contrast to prior art, on often with core, be additionally arranged sealing structure the most respectively.And seal structure and protect by Rubber end; even if it is poorly sealed when the cable failure outside Rubber end or growth cable length; water or foreign material outside motor also will not enter in motor cavity; further increase reliability that motor normally uses, also improve safety in utilization, reduce the risk got an electric shock.
Setting up sealing structure on the cable of Rubber end cladding, the cable regardless of outside motor is the most damaged or increases cable, and the water of outside, foreign material, all without by sealing structure entrance motor cavity, make motor normally work, prevent electric shock risk.
Each described sealing structure includes conductive contact 10, is nested with at the heat-shrinkable tube 20 outside described conductive contact 10, and core 1 end of truncated position is held at the two ends of described conductive contact 10 respectively tightly, makes core 1 form a conductive carrier the most coherent.Conductive contact 10 uses conductive material to make.As a rule, in order to improve electric conductivity, select copper material.Can tightly embrace core end to improve conductive contact, the both ends of conductive contact are all in R shape.Core insulating barrier at the two ends of heat-shrinkable tube and two ends core is held tightly, and middle part acts on again conductive contact, it is possible to makes can tightly hold tightly between heat-shrinkable tube, core insulating barrier, core, conductive contact, prevents from getting loose.
The external shape of conductive contact 10 is cylindrical, or it is prismatic, the bore dia Φ 1mm-Φ 10mm at the two ends of conductive contact 10, hole depth 2mm-50mm, intermediate solid, conductive contact 10 two ends crimp core respectively, or weld with core, three connects one complete conductor of formation, and core insulating barrier is divided into two sections be not connected with by conductive contact 10.
As it is shown on figure 3, hermetically-sealed cable structure also includes support 30, described support 30 arranging three trepannings 31, the sealing structure on every described core 1 is inserted in a described trepanning 31 respectively, and described Rubber end 3 is formed with described support 30 and seals.Support is used for fixing each and seals structure use, reduces each and seals the possibility that structure moves, improves sealing.Support 30 material is plastics, or rubber, and there are trepanning 31, trepanning 31 diameter 1.5mm-10mm in one end, and the other end is provided with the breach 32(corresponding with trepanning 31 or is groove), root radius R0.75mm-R5mm.The core that heat-shrinkable tube is coated with pass trepanning 31, support breach just with heat-shrinkable tube coincide, support have the nose end motor side towards cable, i.e. the cable heart and bracket assembled are existed.Or support is provided with three grooves, and heat-shrinkable tube is bonded on support by glue.
The length of described support 30 is more than the length of described sealing structure.Support 30 can also be used to support sealing structure and prevents from sealing structure bending and damaging.
The core insulating barrier 2 of described cable extends respectively to the two ends of conductive contact.Be conducive to heat-shrinkable tube 20 can be fixed on core insulating barrier 2, prevent from producing between the end of core insulating barrier 2 and heat-shrinkable tube 20 gap, improve insulating properties, the most also improve the bend resistance intensity of core 1, prevent core 1 from fractureing.
Described heat-shrinkable tube 20 is double-deck heat-shrinkable tube, the length of internal layer heat-shrinkable tube adapts with the length of conductive contact, outer layer heat-shrinkable tube has extension 21 outside conductive contact 10, described core insulating barrier 2 is in the extension 21 described in the distribution of the two ends of conductive contact 10 is inserted, and described extension 21 holds described core insulating barrier tightly.The internal layer of double-deck heat-shrinkable tube is glue, and outer layer is heat-shrinkage material, and during heating, hose lining water melts, and heat-shrinkable tube endoporus constantly diminishes, and copper sleeve, line heart copper conductor and line exhaustion of heart-QI edge layer cladding are got up, and shape is integral, inner sealing.
Described Rubber end 3 is coated with sheath 4 and the described support 30 of motor side.The sheath 4 and the support 30 that make motor side are linked together by Rubber end 3, improve the bend resistance intensity of cable.The core assembled and seal structure (or and support) and be put into vulcanite in mould, the Rubber end covered stent that vulcanized, core insulating barrier, sheath, and be closely pasted together with each several part contact surface so that it is form an entirety, inner sealing.
The sealing structure of the technical program solves: when sheath is damaged or cable cover(ing) and core insulating barrier is damaged or user's jumper and the situations such as effective seal approach are not taked in junction, water enters motor cavity by cable core insulating barrier, cause electric pump cisco unity malfunction, Danger Electric shock risk, the problems such as the serious adverse consequences such as burn-down of electric motor, substantially stop water or foreign material and entered the possibility of motor cavity by cable, improve dependability and safety.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention.In the above-described embodiments, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (7)
1. there is the immersible pump of hermetically-sealed cable structure, including motor, the cable being connected in motor cavity, the motor side of described cable is coordinated with motor seal by Rubber end, described Rubber end coordinates with the cable seal of motor side, it is characterized in that every core in the cut cable that described Rubber end seals is clean cut system, every described core all forms electrical connection by sealing structure in truncated position, forms sealing between described Rubber end and sealing structure.
The immersible pump with hermetically-sealed cable structure the most according to claim 1, it is characterized in that each described sealing structure includes conductive contact, it is nested with at the heat-shrinkable tube outside described conductive contact, the core end of truncated position is held at the two ends of described conductive contact respectively tightly, makes core form a conductive carrier the most coherent.
The immersible pump with hermetically-sealed cable structure the most according to claim 2, characterized by further comprising support, arranging three trepannings on described support, the sealing structure on every described core is inserted in a described trepanning respectively, and described Rubber end is formed with described support and seals.
The immersible pump with hermetically-sealed cable structure the most according to claim 3, it is characterised in that the length of described support is more than the length of described sealing structure.
The immersible pump with hermetically-sealed cable structure the most according to claim 4, it is characterised in that the core insulating barrier of described cable extends respectively to the two ends of conductive contact.
6. according to a described immersible pump with hermetically-sealed cable structure optional in claim 3-5, it is characterized in that described heat-shrinkable tube is for double-deck heat-shrinkable tube, the length of internal layer heat-shrinkable tube adapts with the length of conductive contact, outer layer heat-shrinkable tube has extension outside conductive contact, described core insulating barrier is in the extension described in the distribution of the two ends of conductive contact is inserted, and described extension holds described core insulating barrier tightly.
The immersible pump with hermetically-sealed cable structure the most according to claim 6, it is characterised in that the sheath of described Rubber end cladding motor side and described support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610552651.0A CN105952658A (en) | 2016-07-12 | 2016-07-12 | Submerged pump with cable sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610552651.0A CN105952658A (en) | 2016-07-12 | 2016-07-12 | Submerged pump with cable sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105952658A true CN105952658A (en) | 2016-09-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610552651.0A Pending CN105952658A (en) | 2016-07-12 | 2016-07-12 | Submerged pump with cable sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105952658A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323709A (en) * | 2019-06-12 | 2019-10-11 | 中国石油天然气股份有限公司 | Submersible cable wet-type connecting method and device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205610392U (en) * | 2016-05-23 | 2016-09-28 | 新界泵业集团股份有限公司 | Immersible pump with sealed cable structure |
-
2016
- 2016-07-12 CN CN201610552651.0A patent/CN105952658A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205610392U (en) * | 2016-05-23 | 2016-09-28 | 新界泵业集团股份有限公司 | Immersible pump with sealed cable structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323709A (en) * | 2019-06-12 | 2019-10-11 | 中国石油天然气股份有限公司 | Submersible cable wet-type connecting method and device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160921 |
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| WD01 | Invention patent application deemed withdrawn after publication |