CN209375105U - A kind of fire-proof and explosion-proof connector of cable shielding layer earthing - Google Patents
A kind of fire-proof and explosion-proof connector of cable shielding layer earthing Download PDFInfo
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- CN209375105U CN209375105U CN201821971477.4U CN201821971477U CN209375105U CN 209375105 U CN209375105 U CN 209375105U CN 201821971477 U CN201821971477 U CN 201821971477U CN 209375105 U CN209375105 U CN 209375105U
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Abstract
The utility model discloses a kind of fire-proof and explosion-proof connector of cable shielding layer earthing, including shell, oversheath, ground line, metal sheath, the both ends of shell and the oversheath of cable are tightly connected, metal sheath is coated on the periphery of cable, one end of ground line metal sheath exposed with cable is connect, the other end of ground line is pierced by with from the line outlet of setting on the shell, sealant and the encapsulating mouth for sealant to be perfused are filled in shell, the gap between shell and oversheath is sealed by filling tape and filled.The technical program is grounded by connecting on the metal sheath of cable, it is easy for installation, it is reliable for operation, while the defects of copper binding-wire, soldering etc. enhance the stability and intensity of junction, cable connector junction avoided to be easy to happen breakdown, explosion, spontaneous combustion being installed on metal sheath.
Description
Technical field
The utility model relates to power equipments of transmitting electricity, and in particular to a kind of fire-proof and explosion-proof connector of cable shielding layer earthing.
Background technique
With the development of urban construction, the application of power transmission cable is increasingly extensive.Twisted polyethylene cable because its performance is excellent, again
Many advantages, such as amount is light, laying is simple, easy to maintain is rapidly developed, and is safely operated close with its metallic shield grounding mode
Cut phase is closed.High voltage single-core cable is usually protected by metallic conductor, conductor shield, insulating layer, insulation screen, sheath, metal
The composition such as layer, outer jacket.Metal sheath should meet when singlephase earth fault occurs, and can bear fault current and flow through metal sheath
And it will not damage, and play protection and waterproof action.So cable metal sheath takes reasonable cross interconnected and earthing mode,
Current-carrying capacity of cable not only can be improved, reduce project cost, and most important to the safe operation of power circuit.
Cable connector is the weakest link of cable, and probability of malfunction is high, once break down may occur breakdown, explosion,
Spontaneous combustion even fire.Inner cable laying in channel is intensive, if without the fire-proof and explosion-proof measure of cable connector, once cable connector is on fire from explosion
It then may cause Cable Group wound, lead to large-area power-cuts.
Therefore, in view of the above-mentioned problems, providing a kind of fire-proof and explosion-proof connector of cable shielding layer earthing.
Utility model content
The technical problem to be solved by the utility model is to the technical program exists mainly for existing cable connector attachment
When explosion accident occurs, it is easy to breakdown, the problems such as causality loss is big, provide that a kind of cable shielding layer earthing is fire-proof and explosion-proof to be connect
The structure of head, butt joint improves, and ground line is drawn from the metal sheath of cable, and be sealed to this position, carries out
Antiknock protection, thus solve the prior art middle cable connector attachment appearance easy breakdown, explosion even it is on fire, cause cable
The problems such as group's wound and difficult installation production.
The utility model is achieved through the following technical solutions:
A kind of fire-proof and explosion-proof connector of cable shielding layer earthing, including shell, oversheath, ground line, metal sheath, shell
The oversheath of both ends and cable is tightly connected, and metal sheath is coated on the periphery of cable, and one end of ground line and cable are exposed
Metal sheath connection, the other end of ground line are pierced by with from setting line outlet on the shell, in shell filled with sealant with
For the encapsulating mouth of sealant to be perfused, the gap between shell and oversheath is sealed by filling tape is filled.
It is improved in the technical program mainly for cable accessory, increases the intensity of cable connector junction, avoid
When there is breakdown, explosion, spontaneous combustion, Cable Group is caused to hurt accident, while connecting and being grounded in the installed position of cable connector, it is real
Existing cable sheath reliable ground.
Cable can be power cable with cross-linked polyethylene insulation, and specific structure is known to those skilled in the art, outside cable
The protective layer in portion, which generally has, is arranged oversheath in Exterior cable.
Concrete operations are as follows: cable is straightened in the position range that cable needs jointing, from connector center position to
Both sides remove oversheath certain size, and the length for removing oversheath can be adjusted as needed, then mark upper, then
Oversheath incision position on both sides removes graphite linings to both sides, determines the disposing way of shell, clean cable jacket, so
Metal sheath feather plucking in cable jacket end welding ground line range afterwards, tin processing is warded off on surface.
Due to being removed processing firstly the need of to the oversheath for being coated on cable surface before installation ground line,
The oversheath of the both ends of the shell of cable and cable is tightly connected after treatment, and metal sheath is coated on the periphery of cable.
The specific connection type of ground line and cable are as follows: one end of ground line metal sheath exposed with cable is connect, and is connect
The other end of ground wire is pierced by from line outlet, and line outlet is arranged on the shell, has one between the metal sheath and shell of Exterior cable
Fixed gap is filled by sealant between gap, the filling of sealant can the link position of earth wire effectively fixed,
To be grounded being reliably connected for line.
Since the external sheath layer of the cable of installation ground line is cleaned out, then the shell of cable is inevitable removes position with cable
Locate the oversheath connection at both ends, and the shell of cable is when the oversheath with cable is attached, between certainly exist gap,
It is sealed and is filled by filling tape between gap.
Can not only be connected well with ground line by the metal sheath of above-mentioned setting cable, bear fault current without
Cable connector is damaged, while the gap between metal sheath and shell is filled with sealant, shell and oversheath it
Between gap be filled using filling tape, enhance the connective stability and bonding strength of junction.
Preferably, the both ends of the shell and the space of oversheath be successively arranged from inside to outside epoxy mud, the first water blocking tape,
Adhesive tape.
Preferably, the adhesive tape is PVC adhesive tape.
Preferably, the ground line is fixed on metal sheath by copper binding-wire.
Preferably, it is welded between the link position of the ground line, copper binding-wire, metal sheath by soldering.
Preferably, the link position periphery of the ground line and metal sheath is equipped with the second water blocking tape.
Preferably, the incision position of the cable jacket is surrounded with the second water blocking tape.
Preferably, the shell is made of upper half-shells and lower housing, and upper half-shells and lower housing junction use
Bolt fastening connection.
Preferably, the material of the shell is for almag or without magnetic metal material.
The utility model compared with prior art, has the following advantages and benefits:
The technical program provides a kind of fire-proof and explosion-proof joint construction of cable shield, solves current shielding layer grounding construction
It is big, live to need to be truncated more cable connector brought by cable production connector, connector cost height, O&M cost height, potential faults
The problems such as quality control on construction is difficult, joint waterproofing damp proof insulation risk is big, while the high efficient and reliable for realizing ground line is drawn, together
When solve prior art middle cable connector attachment and be easy breakdown, explosion even on fire, the problems such as causing Cable Group to hurt.Therefore exist
On cable connector install protecting box can prevent fires, antiknock, play the role of protect cable connector nearby cable, for reduce cable
Transition joint causality loss is of great significance.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application
Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
Fig. 1 is the pretreatment schematic diagram of cable；
Fig. 2 is the attachment structure schematic diagram of cable and ground line；
Fig. 3 is wrapped sealing filling tape structural schematic diagram；
Fig. 4 is the structural schematic diagram of the utility model；
Label and corresponding parts title in attached drawing:
1-shell, 2-oversheaths, 3-ground lines, 4-metal sheaths, 5- line outlet, 6- sealant, 7- encapsulating mouth, 8-
Filling tape, 9- epoxy mud, the first water blocking tape of 10-, 11- adhesive tape, 12- copper binding-wire, 13- soldering, the second water blocking tape of 14-, 15- stone
Layer of ink.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment, to this reality
It is described in further detail with novel, the exemplary embodiment and its explanation of the utility model are only used for explaining that this is practical new
Type is not intended to limit the scope of the present invention.
Embodiment 1:
As Figure 1-Figure 4, the fire-proof and explosion-proof connector of a kind of cable shielding layer earthing, including shell 1, oversheath 2, ground line
3, metal sheath 4, the both ends of shell 1 and the oversheath 2 of cable are tightly connected, and metal sheath 4 is coated on the periphery of cable, is grounded
One end of line 3 metal sheath 4 exposed with cable is connect, be grounded 3 other end with from the line outlet 5 being arranged on shell 1
It is pierced by, sealant 6 and the encapsulating mouth 7 for sealant to be perfused is filled in shell 1, the gap between shell 1 and oversheath 2 is logical
Cross the sealing filling of filling tape 8.
Wherein, the both ends of the shell 1 and the space of oversheath 2 are successively arranged epoxy mud 9, the first water blocking tape from inside to outside
10, adhesive tape 11.
Wherein, the adhesive tape 11 is PVC adhesive tape.
Sealant 6 described in the present embodiment is filled among shell 1 and ground line 3, the isostructural gap of metal sheath 4,
Reach the excellent sealing at earth wire 3 and 4 link position of metal sheath, sealant 6 here is using conventional sealant
It can.Sealant 6 be added when, can be joined by the encapsulating mouth 7 being arranged on shell 1, thus reach anti-leak, waterproof,
Vibration proof, sound insulation, heat-insulated effect.
The conventional construction of cable such as high voltage single-core cable by metallic conductor, conductor shield, insulating layer, insulation screen,
Sheath, metal sheath, outer jacket etc. form, and in the present embodiment when being pre-processed, selection needs to connect first on cable
The position for connecing ground line removes the oversheath 2 on cable at the position of selection, and oversheath 2 here is also referred to as outer jacket,
Then one section of graphite linings 15 is removed from 2 incision position of oversheath on both sides to both sides, determines the disposing way of shell, clean electricity
Cable oversheath, is then further processed.
Due to generating gap between shell and oversheath, it is contemplated that connector installation place after the metal sheath of removal cable
Strength and stability, therefore the gap is filled using filling tape, filling tape is well known to those skilled in the art.
Connector described in the present embodiment is connected with ground line 3 in metal sheath 4 first, at the same shell 1 and ground line 3,
Gap between shell 1 and oversheath 2 be filled enhancing be mounted with after ground line 3 intensity of cable connector and cable connection and
Stability can smoothly go the export of metal sheath electric current very much.
Setting epoxy mud 9 in gap in the present embodiment while between 1 both ends of shell of cable and oversheath 2, first
Water blocking tape 10, adhesive tape 11, epoxy mud 9 here are also known as epoxy mortar, are made of epoxy resin and ethylenediamine curing agent, adds
After epoxy mud 9, conducive to the cohesive force between enhancing shell 1 and oversheath 2, anti-high voltage intensity and do not limited by surrounding structure shape
System, while the epoxy mud stable chemical performance being added, corrosion resistant good weatherability, while having the function of reinforcement, reinforcing.
First water blocking tape 10 can also be waterproof insulation band in the prior art, be with macromolecule barrier material system in itself
It is standby to form, have excellent electrical insulating property, high adhesion, Water-proof air-tight, resistant of high or low temperature, chemical corrosion resistance, uvioresistant
Linearly can, the recovery and water-proofing treatment of cable insulation can be conducive to by being mounted between shell 1 and oversheath 2, and to accordingly connecting
The waterproof insulation of socket part position connector seals.
The main function of adhesive tape 11 is that tight type connection will be carried out between the both ends of shell 1 and oversheath 2.
The other structures and its principle being related in the present embodiment are known to those skilled in the art, are no longer described in detail.
Embodiment 2:
The present embodiment further limits on the basis of embodiment 1, and the ground line 3 is fixed on metal by copper binding-wire 12
On sheath 4.Wherein, it is welded between the link position of the ground line 3, copper binding-wire 12, metal sheath 4 by soldering 13.
It is stated that one end of ground line 3 is connect with metal sheath 4 in embodiment 1, in order to enhance the stability of connection, pass through
Ground line 3 is fixed on metal sheath 4 by copper binding-wire 12, and copper binding-wire 12 here is prior art construction, and ground line 3 is tied up
It pricks on metal sheath 4, avoids generating disengaging situation between the two.
And welded between the link position for being grounded 3, copper binding-wire 12, metal sheath 4 using soldering 13, then it avoids making
It is fallen off with being generated between ground line 3 and metal sheath 4 in the process, will be fixed between three using external force.
It is related to ground line 3, copper binding-wire 12, the specific structure of metal sheath 4 and its working principle is that sheet in the present embodiment
Well known to the technical staff of field, no longer it is described in detail.
Embodiment 3:
The present embodiment further limits on the basis of the above embodiments, the connection position of the ground line 3 and metal sheath 4
Periphery is set equipped with the second water blocking tape 14.
Second water blocking tape 14 is identical as the structure of the first water blocking tape 10 and effect, and the setting of the second water blocking tape 14 is being grounded
3, with the link position periphery of metal sheath 4, have used 12 earth wire 3 of copper binding-wire to be bound at this time, and with soldering 13
It welds, the second water blocking tape is installed in periphery again after this treatment at this time, can further strengthen water-proofing treatment.
Wherein, the incision position of the cable jacket 2 is surrounded with the second water blocking tape 14.Cable jacket 2 described here
Incision position be Fig. 1, Fig. 2 intermediate cam position shown in place, while herein install water blocking tape 14, the effect of itself is to through the past
Water-proofing treatment is carried out at metal sheath 4 and untreated cable connection after removing except oversheath 2, avoids this junction that humidity etc. occurs
Situation, to influence the operational safety of the power circuit at this.
It is related to other structures in the present embodiment and its working principle is known to those skilled in the art, is no longer described in detail.
Embodiment 4:
The present embodiment further limits on the basis of the above embodiments, and the shell 1 has upper half-shells and lower housing
Composition, upper half-shells and lower housing junction are adopted and are bolted connection.The material of the shell 1 is for almag or without magnetic
Metal material.
The other structures and its working principle being related in the present embodiment are known to those skilled in the art.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of fire-proof and explosion-proof connector of cable shielding layer earthing, it is characterised in that: including shell (1), oversheath (2), ground line
(3), metal sheath (4), the both ends of shell (1) and the oversheath (2) of cable are tightly connected, and metal sheath (4) is coated on cable
Periphery, one end metal sheath (4) exposed with cable for being grounded (3) connect, be grounded the other end of (3) and exist from being arranged
Line outlet (5) on shell (1) is pierced by, and sealant (6) and the encapsulating mouth (7) for sealant to be perfused are filled in shell (1),
Gap between shell (1) and oversheath (2) passes through filling tape (8) sealing filling.
2. the fire-proof and explosion-proof connector of a kind of cable shielding layer earthing according to claim 1, it is characterised in that: the shell
(1) space at both ends and oversheath (2) is successively arranged epoxy mud (9), the first water blocking tape (10), adhesive tape from inside to outside
(11)。
3. the fire-proof and explosion-proof connector of a kind of cable shielding layer earthing according to claim 2, it is characterised in that: the adhesive tape
It (11) is PVC adhesive tape.
4. the fire-proof and explosion-proof connector of a kind of cable shielding layer earthing according to claim 1, it is characterised in that: the ground line
(3) it is fixed on metal sheath (4) by copper binding-wire (12).
5. the fire-proof and explosion-proof connector of a kind of cable shielding layer earthing according to claim 4, it is characterised in that: the ground line
(3), it is welded between the link position of copper binding-wire (12), metal sheath (4) by soldering (13).
6. the fire-proof and explosion-proof connector of a kind of cable shielding layer earthing according to claim 4, it is characterised in that: the ground line
(3) the second water blocking tape (14) are equipped with the link position periphery of metal sheath (4).
7. the fire-proof and explosion-proof connector of a kind of cable shielding layer earthing according to claim 1, it is characterised in that: outside the cable
The incision position of sheath (2) is surrounded with the second water blocking tape (14).
8. the fire-proof and explosion-proof connector of a kind of cable shielding layer earthing according to claim 1, it is characterised in that: the shell
(1) it is made of upper half-shells and lower housing, upper half-shells and lower housing junction are adopted and be bolted connection.
9. the fire-proof and explosion-proof connector of a kind of cable shielding layer earthing according to claim 1, it is characterised in that: the shell
(1) material is for almag or without magnetic metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821971477.4U CN209375105U (en) | 2018-11-26 | 2018-11-26 | A kind of fire-proof and explosion-proof connector of cable shielding layer earthing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821971477.4U CN209375105U (en) | 2018-11-26 | 2018-11-26 | A kind of fire-proof and explosion-proof connector of cable shielding layer earthing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209375105U true CN209375105U (en) | 2019-09-10 |
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ID=67834029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821971477.4U Active CN209375105U (en) | 2018-11-26 | 2018-11-26 | A kind of fire-proof and explosion-proof connector of cable shielding layer earthing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209375105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697404A (en) * | 2020-05-23 | 2020-09-22 | 国家电网有限公司 | Cold connection method for tin foil grounding lead of high-voltage cable |
| CN115764337A (en) * | 2022-11-30 | 2023-03-07 | 珠海市中力电力设备有限公司 | Cable welding type joint |
-
2018
- 2018-11-26 CN CN201821971477.4U patent/CN209375105U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111697404A (en) * | 2020-05-23 | 2020-09-22 | 国家电网有限公司 | Cold connection method for tin foil grounding lead of high-voltage cable |
| CN115764337A (en) * | 2022-11-30 | 2023-03-07 | 珠海市中力电力设备有限公司 | Cable welding type joint |
| CN115764337B (en) * | 2022-11-30 | 2024-05-24 | 珠海市中力电力设备有限公司 | Cable fusion type joint |
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