CN204205533U - A kind of cable joint of electrical appliance under water - Google Patents
A kind of cable joint of electrical appliance under water Download PDFInfo
- Publication number
- CN204205533U CN204205533U CN201420589938.7U CN201420589938U CN204205533U CN 204205533 U CN204205533 U CN 204205533U CN 201420589938 U CN201420589938 U CN 201420589938U CN 204205533 U CN204205533 U CN 204205533U
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- rubber seal
- adapter sleeve
- under water
- electrical appliance
- metal adapter
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Abstract
The utility model provides a kind of cable joint of electrical appliance under water, belongs to technical field of electric wires and cables.The problems such as the cable joint it solving existing electrical appliance under water leaks.Originally the cable joint of electrical appliance comprises cable body and is solidly set on the rubber seal outside cable body under water, cable body comprises insulating outer layer and the some heart yearns be arranged in insulating outer layer, axially the quantity metal adapter sleeve consistent with heart yearn quantity is equipped with in rubber seal, metal adapter sleeve is solid construction and the outer surface of metal adapter sleeve and rubber seal intimate contact, and one end of metal adapter sleeve axially offers the connecting hole one penetrated for a heart yearn, the other end of metal adapter sleeve axially offers the connecting hole two penetrated for a multi cord, rubber seal is fixed with jacket structure near the end of cable body.The utility model can stop that gas leakage is leaked, good airproof performance and fail safe good.
Description
Technical field
The utility model belongs to technical field of electric wires and cables, relates to a kind of cable joint, particularly a kind of cable joint of electrical appliance under water.
Background technology
Existing electrical appliance under water, the such as installation of immersible pump outlet cable, the cored screw be set on cable is all adopted to apply enough axial forces to elastic rubber sealing ring, rubber seal is forced to produce radial bulging distortion with the object reaching sealing, this radial compression power passes to the insulating barrier of cable core by cable cover(ing), the radial core insulation corresponding to rubber seal is caused to cave in thinning, there is plastic deformation, so that under the effect of hydraulic pressure, easily there is seepage, even motor damage, the core insulation that pressurized is thinning simultaneously makes phase insulation resistance obviously decline, electric current even can be caused to puncture insulating barrier, be short-circuited, the fault of burning.
For above-mentioned problem, people devise various structure to improve fail safe and the useful life at the cable joint place of electrical appliance under water, and such as Chinese patent literature data discloses a kind of core line skeleton of under water electric appliance cable outlet [application number: 03239308.3; Authorization Notice No.: CN2606998Y], it adopts hard insulation to make, and is positioned at the cable head end of access electrical equipment, is placed in cable cover(ing) inside, has the axially extending bore that each heart yearn of current supply cable wears respectively.This core line skeleton of under water electric appliance cable outlet makes core insulation not be subject to the extruding of seal radial generation and damage, improve useful life and dependability, but axially offer three through holes does not have lateral wall to skeleton, still there is larger radial deformation in such skeleton, when seal radial extruding force is larger, through hole deformation still can cause the insulating barrier of heart yearn thinning, the potential safety hazard of still there is short circuit, burning.
Chinese patent literature data also discloses a kind of outlet cable structure [application number: 201320857644.3 of electrical appliance under water; Authorization Notice No.: CN203644433U]; it comprises cable body and is solidly set on the rubber sheath outside cable body; cable body comprises insulating outer layer and the some heart yearns be arranged in insulating outer layer; rubber sheath radial direction is fixed with a seal; be fixed with between rubber sheath and cable body one cylindrically and the protective sleeve be made up of hard material, protective sleeve current supply cable body through and when the deformation of seal pressurized protective sleeve bear completely seal generation radial compression power.
The outlet cable structure of above-mentioned electrical appliance under water makes cable body not by the effect of the radial compression power of seal generation, the insulating outer layer of cable body and heart yearn all can not deformation, the phenomenon of there will not be short circuit herein, burning, but in use owing to there is certain interval between heart yearn and insulating outer layer, still there is the possibility of gas leakage of leaking, there is potential safety hazard, rubber sheath is directly outside exposed in addition, easy damage, useful life is short.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides a kind of cable joint of electrical appliance under water of gas leakage of can stopping to leak.
The purpose of this utility model realizes by following technical proposal: a kind of cable joint of electrical appliance under water, comprise cable body and be solidly set on the rubber seal outside cable body, described cable body comprises insulating outer layer and the some heart yearns be arranged in insulating outer layer, it is characterized in that, axially the quantity metal adapter sleeve consistent with heart yearn quantity is equipped with in described rubber seal, described metal adapter sleeve is solid construction and the outer surface of metal adapter sleeve and rubber seal intimate contact, and one end of described metal adapter sleeve axially offers the connecting hole one penetrated for a heart yearn, the other end of metal adapter sleeve axially offers the connecting hole two penetrated for a multi cord, described rubber seal is fixed with jacket structure near the end of cable body.
In the cable joint of this electrical appliance under water, multi cord is the connection electric wire of electrical appliance under water, and a heart yearn in cable body is fixed in the connecting hole one of corresponding metal adapter sleeve, and connecting hole two correspondence of each metal adapter sleeve connects a multi cord; Be arranged in rubber seal to metal adapter sleeve interference fit in the cable joint of this electrical appliance under water, rubber seal has the outer surface that elasticity can brace metal adapter sleeve, so there will not be gap between the outer surface of metal connecting piece and rubber seal, or by sulfuration, rubber seal is connected with the outer surface of metal connecting piece, makes not occur gap between the outer surface of metal connecting piece and rubber seal.Originally when the cable joint of electrical appliance uses under water, metal adapter sleeve can bear the radial compression power that rubber seal pressurized produces completely, the insulating outer layer of cable body, heart yearn and multi cord all can not deformation, there will not be short circuit herein, the phenomenon of burning, fail safe is good, and metal adapter sleeve is that rubber seal provides radial direction and supports uniformly and effectively, rubber seal radial force is comparatively even, improve sealing, originally the cable joint of electrical appliance makes structural strength between cable body and rubber seal good by jacket structure under water in addition, antileaking leaks gas, even if the junction of cable body and rubber seal leaks air leak, water, gas can not enter between the outer surface of rubber seal and metal adapter sleeve, water, gas can be intercepted by solid metal adapter sleeve, so just stop to leak gas leak phenomenon, improve the fail safe of electrical appliance under water.
In the cable joint of above-mentioned a kind of electrical appliance under water, described jacket structure comprises inner sheath coated for cable body end, one end of described inner sheath contacts at the end of rubber seal, and the other end of inner sheath is the insulating outer layer that reducing shape lock onto cable body.
In the cable joint of above-mentioned a kind of electrical appliance under water, described inner sheath is made up of rubber or epoxy resin or polyurethane material.During such manufacture, by mold pressing or thermoplastic shaping, the bonding strength of inner sheath and cable body is good, not easily occurs gap each other.
In the cable joint of above-mentioned a kind of electrical appliance under water, described jacket structure also comprises and is tightly placed in that inner sheath is outer and by oversheath coated for rubber seal end, described oversheath is made up of stainless steel or hard plastic.Oversheath plays a protective role, and is compressed in rubber seal end and inner sheath, adds sealing.
Compared with prior art, the compact conformation of this cable joint of electrical appliance under water, good airproof performance, has stopped to leak gas leak phenomenon, and fail safe is good.
Accompanying drawing explanation
Fig. 1 is the structure cross-sectional schematic of the originally cable joint of electrical appliance under water.
Fig. 2 be in Fig. 1 A to structural representation.
In figure, 1, cable body; 1a, insulating outer layer; 1b, heart yearn; 2, rubber seal; 3, metal adapter sleeve; 3a, connecting hole one; 3b, connecting hole two; 4, multi cord; 5, inner sheath; 6, oversheath.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Originally the cable joint of electrical appliance is applicable in the electrical equipment of the underwater operation such as water pump, submersible under water.As Fig. 1 and as shown in Figure 2, originally the cable joint of electrical appliance comprises cable body 1 and the rubber seal 2 be solidly set on outside cable body 1 under water, cable body 1 comprises insulating outer layer 1a and the some heart yearn 1b be arranged in insulating outer layer 1a, and in the present embodiment, the quantity of heart yearn 1b is three.Axially the quantity metal adapter sleeve 3 consistent with heart yearn 1b quantity is equipped with in rubber seal 2, metal adapter sleeve 3 is solid construction and the outer surface of metal adapter sleeve 3 and rubber seal 2 intimate contact, and one end of metal adapter sleeve 3 axially offers connecting hole one 3a penetrated for a heart yearn 1b, the other end of metal adapter sleeve 3 axially offers connecting hole two 3b penetrated for a multi cord 4, and rubber seal 2 is fixed with jacket structure near the end of cable body 1.
Describe in detail further, jacket structure comprises inner sheath 5 coated for cable body 1 end, one end of inner sheath 5 contacts at the end of rubber seal 2, and the other end of inner sheath 5 is the insulating outer layer 1a that reducing shape lock onto cable body 1, and inner sheath 5 is made up of epoxide resin material.Jacket structure also comprises and is tightly placed in that inner sheath 5 is outer and by oversheath 6 coated for rubber seal 2 end, oversheath 6 is made up of stainless steel.In the present embodiment, metal adapter sleeve 3 is made up of red copper, and conductive effect is desirable, and during actual manufacture, metal adapter sleeve 3 can also be made up of brass, lead.
In the cable joint of this electrical appliance under water, multi cord 4 is the connection electric wire of electrical appliance under water, a heart yearn 1b in cable body 1 is fixed in connecting hole one 3a of corresponding metal adapter sleeve 3, and the connecting hole two 3b correspondence of each metal adapter sleeve 3 connects a multi cord 4; Be arranged in rubber seal 2 to metal adapter sleeve 3 interference fit in the present embodiment, rubber seal 2 has the outer surface that elasticity can brace metal adapter sleeve 3, so there will not be gap between the outer surface of metal connecting piece and rubber seal 2.Originally when the cable joint of electrical appliance uses under water, metal adapter sleeve 3 can bear the radial compression power that rubber seal 2 pressurized produces completely, the insulating outer layer 1a of cable body 1, heart yearn 1b and multi cord 4 all can not deformation, there will not be short circuit herein, the phenomenon of burning, fail safe is good, and metal adapter sleeve 3 supports uniformly and effectively for rubber seal 2 provides radial direction, rubber seal 2 radial force is comparatively even, improve sealing, originally the cable joint of electrical appliance passes through the setting of inner sheath 5 and oversheath 6 under water in addition, make structural strength between cable body 1 and rubber seal 2 good, good airproof performance, antileaking leaks gas, even if cable body 1 leaks air with the junction of rubber seal 2 and leaks, water, gas can not enter between the outer surface of rubber seal 2 and metal adapter sleeve 3, water, gas can be intercepted by solid metal adapter sleeve 3, so just stop to leak gas leak phenomenon, improve the fail safe of electrical appliance under water.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (4)
1. the cable joint of an electrical appliance under water, comprise cable body (1) and be solidly set on the rubber seal (2) outside cable body (1), described cable body (1) comprises insulating outer layer (1a) and the some heart yearns (1b) be arranged in insulating outer layer (1a), it is characterized in that, axially the quantity metal adapter sleeve (3) consistent with heart yearn (1b) quantity is equipped with in described rubber seal (2), described metal adapter sleeve (3) is for solid construction and the outer surface of metal adapter sleeve (3) and rubber seal (2) intimate contact, and one end of described metal adapter sleeve (3) axially offers the connecting hole one (3a) penetrated for a heart yearn (1b), the other end of metal adapter sleeve (3) axially offers the connecting hole two (3b) penetrated for a multi cord (4), described rubber seal (2) is fixed with jacket structure near the end of cable body (1).
2. the cable joint of a kind of electrical appliance under water according to claim 1, it is characterized in that, described jacket structure comprises inner sheath (5) coated for cable body (1) end, one end of described inner sheath (5) contacts at the end of rubber seal (2), and the other end of inner sheath (5) is the insulating outer layer (1a) that reducing shape lock onto cable body (1).
3. the cable joint of a kind of electrical appliance under water according to claim 2, is characterized in that, described inner sheath (5) is made up of rubber or epoxy resin or polyurethane material.
4. the cable joint of a kind of electrical appliance under water according to claim 2, it is characterized in that, described jacket structure also comprises and is tightly placed in inner sheath (5) and by oversheath (6) coated for rubber seal (2) end, described oversheath (6) is made up of stainless steel or hard plastic outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420589938.7U CN204205533U (en) | 2014-10-14 | 2014-10-14 | A kind of cable joint of electrical appliance under water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420589938.7U CN204205533U (en) | 2014-10-14 | 2014-10-14 | A kind of cable joint of electrical appliance under water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204205533U true CN204205533U (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420589938.7U Expired - Fee Related CN204205533U (en) | 2014-10-14 | 2014-10-14 | A kind of cable joint of electrical appliance under water |
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| Country | Link |
|---|---|
| CN (1) | CN204205533U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967084A (en) * | 2015-05-19 | 2015-10-07 | 江苏中煤电缆有限公司 | Degaussing cable connector |
| CN107781894A (en) * | 2017-11-24 | 2018-03-09 | 嘉善县欣龙服饰辅料厂（普通合伙） | A kind of leakproof electrical connector and its production technology for electric heating floor |
| CN112769089A (en) * | 2021-01-09 | 2021-05-07 | 台州腾标电子有限公司 | Stainless steel motor cable end |
-
2014
- 2014-10-14 CN CN201420589938.7U patent/CN204205533U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104967084A (en) * | 2015-05-19 | 2015-10-07 | 江苏中煤电缆有限公司 | Degaussing cable connector |
| CN107781894A (en) * | 2017-11-24 | 2018-03-09 | 嘉善县欣龙服饰辅料厂（普通合伙） | A kind of leakproof electrical connector and its production technology for electric heating floor |
| CN112769089A (en) * | 2021-01-09 | 2021-05-07 | 台州腾标电子有限公司 | Stainless steel motor cable end |
| CN112769089B (en) * | 2021-01-09 | 2023-05-12 | 台州腾标电子有限公司 | Stainless steel motor cable end |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20151014 |
|
| EXPY | Termination of patent right or utility model |