CN112864741A - Self-power-off fireproof cable connecting joint - Google Patents
Self-power-off fireproof cable connecting joint Download PDFInfo
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- CN112864741A CN112864741A CN202011634144.4A CN202011634144A CN112864741A CN 112864741 A CN112864741 A CN 112864741A CN 202011634144 A CN202011634144 A CN 202011634144A CN 112864741 A CN112864741 A CN 112864741A
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- Prior art keywords
- retardant
- socket
- self
- plug
- fire
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- 239000003063 flame retardant Substances 0.000 claims abstract description 65
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000004020 conductor Substances 0.000 claims abstract description 32
- 229910052802 copper Inorganic materials 0.000 claims abstract description 32
- 239000010949 copper Substances 0.000 claims abstract description 32
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000003780 insertion Methods 0.000 claims description 13
- 230000037431 insertion Effects 0.000 claims description 13
- 230000005611 electricity Effects 0.000 abstract description 8
- 230000002265 prevention Effects 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention provides a connection joint of a self-power-off fireproof cable, belongs to the technical field of cable equipment, and solves the problems that the cable cannot be subjected to self-power-off fireproof in fire, cannot be quickly connected, disassembled and closed and the like. The self-power-off fireproof cable comprises a self-power-off fireproof cable, a connecting plug and a connecting socket, wherein the self-power-off fireproof cable comprises a flame-retardant outer sheath, a flame-retardant inner sheath, an insulating sheath and a bundled soft copper conductor, a plurality of flame-retardant wires are further arranged in the flame-retardant inner sheath, the connecting plug is connected to the tail end of the bundled soft copper conductor on one side, one end of the connecting socket is connected to the connecting plug, the other end of the connecting socket is connected to the bundled soft copper conductor, conductive cores are arranged in the connecting plug and the connecting socket, and two symmetrical insulating locking parts are arranged between the connecting socket and the flame-retardant outer sheath and between the connecting plug and. The fire-retardant lead is disconnected during fire, so that electricity exposure is avoided, the connecting plug and the connecting socket are connected and disconnected, falling is avoided, and the stability is good.
Description
The invention belongs to the application date: 2019-12-26, application number: 201911362276.3, patent name: a self-power-off fireproof cable and a division application of a connecting joint thereof are provided.
Technical Field
The invention belongs to the related technical field of cable equipment, and relates to a self-power-off fireproof cable, in particular to a connecting joint.
Background
Cable is a generic term for optical cables, electrical cables, and the like. The cable has many purposes, is mainly used for controlling installation, connecting equipment, transmitting power and other multiple functions, and is a common and indispensable object in daily life. Installation requires special care since the cable is live.
With the rapid development of the times, people have higher and higher requirements on cables and comprehensive wiring system performance. However, due to the limitations of the above structure and wiring of the cable, the influence of electromagnetic radiation and capacitive coupling at high frequency is more and more prominent, and because each cable is an independent unit, the cable sheaths are easily adhered to each other after the cable is heated and scalded for a long time, and the like, so that the cable is damaged, even leaks electricity and burns, and finally a fire hazard is caused.
When a fire disaster occurs, a plurality of cables lack a fireproof self-breaking protection device, a switch main brake needs to be tripped to avoid electric leakage when the fire disaster occurs, the existing circuit breaker can perform electric leakage protection, but generally can play a role after the cables are short-circuited and broken, the phenomenon of more overload of loads can exist, and then the circuit breaker is tripped, and the electric safety is improved, but the tripping protection is pointedly unavailable, low in sensitivity and incapable of being rapidly performed; in addition, the operation of detaching and combining the cables is inconvenient, when the cables are combined, the cables are mostly wound and connected, the conductive performance can be changed, overheating and scalding are easily caused, a fire disaster is easily caused, a quick connection joint is lacked, current is stably conveyed, and a conductive whole is formed.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a self-power-off fireproof cable and a connecting joint thereof, and the device aims to solve the technical problems that: how to guarantee that the cable carries out the self-breaking fire prevention and the cable possesses quick connect's function in the fire.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a from outage fireproof cable includes fire-retardant oversheath, sets up the fire-retardant inner sheath in fire-retardant oversheath, sets up the insulating cover of a plurality of equipartitions in fire-retardant inner sheath, sets up a plurality of bundles of closing soft copper conductor in the insulating cover, still is provided with a plurality of back-fire relief wires in the fire-retardant inner sheath.
The utility model provides a connector, includes from outage fire prevention cable, connecting plug and connection socket, and connecting plug connects the end that closes soft copper conductor in one side, and connection socket's one end is connected on connecting plug, and connection socket's the other end is connected with a plurality of bundles and closes soft copper conductor, and connecting plug and connection socket are inside to be equipped with electrically conductive core, all are provided with the insulating hasp piece of two symmetries between connecting socket and the fire-retardant outer jacket and between connecting plug and the fire-retardant oversheath.
The working principle of the invention is as follows: this from outage fire prevention cable directly connects electricity and uses, the back-fire relief wire is connected at the switch main brake, when on fire, the back-fire relief wire can be at first heated fusing, then make the trip of switch main brake, avoid the electricity to reveal, when two cables are connected to needs, peel off insulating cover partly, the beam in exposing closes soft copper conductor, then close the beam that both ends need be connected on soft copper conductor inserts connecting plug and connecting socket respectively, then insert the connecting plug and close on connecting socket, it is whole to form the connection, then lock insulating snap close spare, form overall structure.
The one end of connecting plug sets up the connecting plug jack of a plurality of equipartitions, and the connecting plug jack is inside to be the step form, and the registrate that the connecting plug jack corresponds is on binding the soft copper conductor, and back-fire relief jack one has still been seted up to connecting plug's one end, and the registrate that back-fire relief jack one corresponds is on the back-fire relief wire.
By adopting the mechanism, the connecting plug jacks are correspondingly sleeved on the binding soft copper conductor, and the fire-retardant jacks are correspondingly sleeved on the fire-retardant wire to be connected into a whole.
The inner diameter of the connecting plug jack is smaller than the outer diameter of the insulating sleeve, and the inner diameter of the first fire-retardant jack is smaller than the outer diameter of the fire-retardant wire.
Mechanism more than adopting, the internal diameter of connecting plug jack is less than the external diameter of insulating cover, and inside insulating cover inserted through interference fit closed at connecting plug jack, the internal diameter of back-fire relief jack one was less than the external diameter of back-fire relief wire, and back-fire relief wire inserted through interference fit closed inside back-fire relief jack one.
The other end of the connecting plug is provided with two symmetrical insertion rods, each insertion rod is provided with an insertion convex block, the outer side of the connecting plug is fixed with two symmetrical first hinged connecting blocks, the outer side of the connecting plug is further provided with two symmetrical connecting locking grooves, and the first hinged connecting blocks and the connecting locking grooves are respectively located at two ends of the connecting plug.
By adopting the mechanism, the inserting rod is convenient for secondary plugging and unplugging, and the plugging lug is conductive in transmission.
Socket jack of a plurality of equipartitions is seted up to connect socket's one end, and socket jack is inside to be the step form, and socket jack corresponds registrates on binding the soft copper conductor, and back-fire relief jack two has still been seted up to connect socket's one end, and the registrate that back-fire relief jack two correspond is on the back-fire relief wire, and connect socket's one end still is fixed with the connection elastic rod of two symmetries.
By adopting the mechanism, the socket jacks are correspondingly sleeved on the binding soft copper conductor, and the fire-retardant jacks are correspondingly sleeved on the fire-retardant conducting wire and are connected into a whole.
The inner diameter of the socket jack is smaller than the outer diameter of the insulating sleeve, and the inner diameter of the fire-retardant jack II is smaller than the outer diameter of the fire-retardant wire.
Mechanism more than adopting, the internal diameter of socket jack is less than the external diameter of insulating cover, and inside the socket jack was inserted through interference fit to close to insulating cover, and the internal diameter of back-fire relief jack two was less than the external diameter of back-fire relief wire, and the back-fire relief wire is inserted through interference fit and is closed inside back-fire relief jack two.
The connecting elastic rods are clamped inside the corresponding connecting locking grooves, the length of each connecting elastic rod is smaller than that of each connecting locking groove, and the width of each connecting elastic rod is larger than that of each connecting locking groove.
The mechanism more than adopting, connect the elastic rod joint inside the connection locked groove that corresponds, be in the same place connecting plug and connection plug seat lock, the length of connecting the elastic rod is less than the length of connecting the locked groove, conveniently withholds out and connects the elastic rod, and the width of connecting the elastic rod is greater than the width of connecting the locked groove, carries out the interference fit closure.
The other end of the connecting socket is provided with two symmetrical connecting and inserting holes, the connecting and inserting holes are sleeved on the inserted rod correspondingly, the inner diameter of the connecting and inserting holes is smaller than the outer diameter of the inserted rod, two symmetrical hinged connecting blocks II are fixed on the outer side of the connecting socket, and the hinged connecting blocks II are located at the other end close to the connecting socket.
By adopting the mechanism, the connecting insertion hole is correspondingly sleeved on the inserted rod for conducting electricity, the inner diameter of the connecting insertion hole is smaller than the outer diameter of the inserted rod, and the inserted rod is locked inside the connecting insertion hole in an interference fit manner.
One end of the insulating lock catch piece is provided with an elastic lock strip, two ends of the elastic lock strip are both fixed with lock blocks, the lock blocks are provided with screw holes, and the middle part of the other end of the insulating lock catch piece is fixed with a hinge block; the hinged blocks are hinged between the first hinged connecting block and the second hinged connecting block respectively, the locking blocks of the two insulating locking pieces on the same side are connected together through screw holes matched with bolts, the insulating locking pieces are in a round platform shape, the inner diameter of each elastic locking strip is smaller than the outer diameter of the corresponding flame-retardant outer sheath, and the inner side face of each elastic locking strip is provided with a triangular convex block.
By adopting the mechanism, the hinged blocks are respectively hinged between the first hinged block and the second hinged block, the insulating lock catch piece can be opened and closed in a rotating mode, the inner diameter of the elastic lock strip is smaller than the outer diameter of the flame-retardant outer sheath, the elastic lock strip is locked on the flame-retardant outer sheath, the triangular lug increases friction force, and the insulating lock catch piece is prevented from falling off.
Compared with the prior art, the self-power-off fireproof cable and the connecting joint thereof have the following advantages:
the connecting plug is matched with the connecting socket to form a conductive whole body, so that the conductive whole body is convenient to disassemble and assemble, the inserted rod is locked in the connecting inserting hole through interference fit, the inserted rod is prevented from being pulled and falling off, and the stability is better; an insulation lock catch piece is sleeved on the stripped flame-retardant outer sheath and the flame-retardant inner sheath for insulation and fire prevention, and a triangular lug is arranged on the inner side surface of the elastic locking strip to increase friction force and prevent the bundled soft copper conductor from falling off the connecting plug and the connecting socket; meanwhile, the insulating lock catch pieces are symmetrically hinged to the connecting plug and the connecting socket respectively, so that the connecting plug and the connecting socket can be opened and closed conveniently, and relevant connection dismantling operation can be carried out; adopt the back-fire relief wire to connect at the switch main brake, when catching fire, the back-fire relief wire can break off at first, then makes the trip of switch main brake, avoids the electricity to reveal.
Drawings
Fig. 1 is a schematic perspective view of a self-power-off fireproof cable.
Fig. 2 is a schematic perspective view of the present invention in a cable connection state.
Fig. 3 is an exploded view of the present invention in a cable-connected state.
In the figure: 1-flame-retardant outer sheath, 2-flame-retardant inner sheath, 3-insulating sheath, 4-bundle soft copper conductor, 5-flame-retardant wire, 6-insulating locking fastener, 6 a-locking block, 6 b-elastic locking strip, 6 c-hinging block, 7-connecting plug, 7 a-hinging connecting block I, 7 b-connecting plug jack, 7 c-flame-retardant jack I, 7 d-connecting locking groove, 7 e-inserted bar, 7 f-inserting lug, 8-connecting socket, 8 a-connecting elastic bar, 8 b-connecting inserting hole and 8 c-hinging connecting block II.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Please refer to fig. 1-3, this embodiment provides a self-power-off fireproof cable, which includes a flame-retardant outer sheath 1, a flame-retardant inner sheath 2 disposed in the flame-retardant outer sheath 1, a plurality of uniformly distributed insulating sleeves 3 disposed in the flame-retardant inner sheath 2, a plurality of bundled soft copper conductors 4 disposed in the insulating sleeves 3, and a plurality of fire-retardant wires 5 disposed in the flame-retardant inner sheath 2, wherein the self-power-off fireproof cable is directly electrically connected for use, the fire-retardant wires 5 are connected to a switch main brake, when a fire occurs, the fire-retardant wires 5 are firstly heated and fused, and then the switch main brake is tripped to avoid electrical leakage.
A connector comprises the self-power-off fireproof cable, a connecting plug 7 and a connecting socket 8 as claimed in claim 1, wherein the connecting plug 7 is connected with the tail end of a soft copper conductor 4 on one side, one end of the connecting socket 8 is connected with the connecting plug 7, the other end of the connecting socket 8 is connected with a plurality of bundled soft copper conductors 4, conductive cores are arranged inside the connecting plug 7 and the connecting socket 8, two symmetrical insulating locking fasteners 6 are arranged between the connecting socket 8 and an inflaming retarding outer sheath 1 and between the connecting plug 7 and the inflaming retarding outer sheath 1, when two cables need to be connected, one part of an insulating sleeve 3 is peeled off to expose the bundled soft copper conductor 4 inside, then the bundled soft copper conductors 4 which need to be connected at two ends are respectively inserted into the connecting plug 7 and the connecting socket 8, and then the connecting plug 7 is inserted into the connecting socket 8 to form a whole body, the dielectric locking member 6 is then locked to form a unitary structure.
Connecting plug jack 7b of a plurality of equipartitions is seted up to connecting plug 7's one end, and connecting plug jack 7b is inside to be the step form, the registrate that connecting plug jack 7b corresponds is closing soft copper conductor 4 in the beam, back-fire relief jack 7c has still been seted up to connecting plug 7's one end, the registrate that back-fire relief jack 7c corresponds is on back-fire relief wire 5, the registrate that connecting plug jack 7b corresponds is closing soft copper conductor 4 in the beam, the registrate that back-fire relief jack 7c corresponds is on back-fire relief wire 5, connect as a whole.
The internal diameter of connecting plug jack 7b is less than the external diameter of insulating cover 3, and insulating cover 3 inserts through interference fit and closes inside connecting plug jack 7b, and the internal diameter of back-fire relief jack 7c is less than the external diameter of back-fire relief wire 5, and back-fire relief wire 5 inserts through interference fit and closes inside back-fire relief jack 7 c.
The other end of connecting plug 7 is equipped with two symmetrical inserted bars 7e, all is equipped with on the inserted bar 7e and inserts lug 7f, and the outside of connecting plug 7 is fixed with the articulated piece of linking 7a of two symmetries, and the connection locked groove 7d of two symmetries has still been seted up in the outside of connecting plug 7, and articulated piece of linking 7a and connection locked groove 7d are located the both ends of connecting plug 7 respectively, and the convenient secondary of inserted bar 7e is pulled out and is inserted, and the transmission of the lug 7f that inserts is electrically conductive.
The socket jack of a plurality of equipartitions is seted up to the one end of connection socket 8, and the inside step form that is of socket jack, the registrate that the socket jack corresponds is closing soft copper conductor 4 on the beam, back-fire relief jack two has still been seted up to connection socket 8's one end, the registrate that back-fire relief jack two correspond is on back-fire relief wire 5, connection socket 8's one end still is fixed with the connection elastic rod 8a of two symmetries, the registrate that the socket jack corresponds is closing soft copper conductor 4 on the beam, the registrate that back-fire relief jack two correspond is on back-fire relief wire 5, connect as a whole.
The internal diameter of socket jack is less than the external diameter of insulating cover 3, and inside insulating cover 3 inserted the socket jack through interference fit, the internal diameter of back-fire relief jack two was less than the external diameter of back-fire relief wire 5, and back-fire relief wire 5 inserts inside back-fire relief jack two through interference fit.
Connect elastic rod 8a joint inside the connection locked groove 7d that corresponds, with connecting plug 7 and connection socket 8 lock together, the length of connecting elastic rod 8a is less than the length of connecting locked groove 7d, conveniently withstands and connects elastic rod 8a, and the width of connecting elastic rod 8a is greater than the width of connecting locked groove 7d, carries out the interference fit closure.
The other end of the connecting socket 8 is provided with two symmetrical connecting and plugging holes 8b, the connecting and plugging holes 8b are correspondingly sleeved on the plug rod 7e, the inner diameter of the connecting and plugging hole 8b is smaller than the outer diameter of the plug rod 7e, two symmetrical hinged connecting blocks 8c are fixed on the outer side of the connecting socket 8, the hinged connecting blocks 8c are located at the other end close to the connecting socket 8, the connecting and plugging holes 8b are correspondingly sleeved on the plug rod 7e to conduct electricity, the inner diameter of the connecting and plugging hole 8b is smaller than the outer diameter of the plug rod 7e, and the plug rod 7e is locked inside the connecting and plugging hole 8b through interference fit.
One end of the insulating lock catch piece 6 is provided with an elastic locking strip 6b, two ends of the elastic locking strip 6b are both fixed with a locking block 6a, the locking block 6a is provided with a screw hole, and the middle part of the other end of the insulating lock catch piece 6 is fixed with a hinge block 6 c; the hinged block 6c is hinged between the hinged connecting block I7 a and the hinged connecting block II 8c respectively, the locking blocks 6a of the two insulating locking pieces 6 on the same side are connected together through screw holes matched with bolts, the hinged block 6c is hinged between the hinged connecting block I7 a and the hinged connecting block II 8c respectively, the insulating locking pieces 6 can be opened and locked in a rotating mode, the insulating locking pieces 6 are in a circular table shape, the inner diameter of each elastic locking strip 6b is smaller than the outer diameter of the flame-retardant outer sheath 1, each elastic locking strip 6b is locked on the flame-retardant outer sheath 1, the inner side face of each elastic locking strip 6b is provided with a triangular lug, the triangular lug increases friction, and the insulating locking pieces 6 are prevented from falling off.
The working principle of the invention is as follows:
the self-power-off fireproof cable can be directly connected and electrified for use, the fire-retardant wire 5 is connected to a switch main brake, when a fire breaks out, the fire-retardant wire 5 can be firstly fused by heating, then the switch main brake is tripped to avoid electric leakage, when two self-power-off fireproof cables need to be connected, one part of the insulating sleeve 3 is stripped, the bundled soft copper conductor 4 in the insulating sleeve is exposed, then the bundled soft copper conductor 4 on one side is inserted into the connecting plug jack 7b, the insulating sleeve 3 is inserted into the connecting plug jack 7b in an interference fit manner, the elastic locking strip 6b is locked on the flame-retardant outer sheath 1, the corresponding locking blocks 6a of the two insulating locking pieces 6 are connected together through bolts, and the fire-retardant wire 5 is inserted into the first fire-retardant jack 7c in the interference fit manner; inserting the bundled soft copper conductor 4 on the other side into a socket jack, inserting the insulating sleeve 3 into the socket jack in an interference fit manner, locking the elastic locking strip 6b on the flame-retardant outer sheath 1, connecting the corresponding locking blocks 6a of the two insulating locking pieces 6 on the same side together through bolts, and inserting the flame-retardant wire 5 into the second flame-retardant jack in an interference fit manner; then with inserted bar 7e through interference fit closure inside connecting the plug-in hole 8b, electrically conduct, connect inside elastic rod 8a joint the connection locked groove 7d that corresponds, connect and form whole, avoid droing.
In conclusion, the invention provides the self-power-off fireproof cable and the connecting joint thereof, the connecting plug 7 is matched with the connecting socket 8 to form a conductive whole body, the disassembly and the assembly are convenient, the inserting rod 7e is locked inside the connecting inserting hole 8b through interference fit, the pulling and the falling off are avoided, and the stability is better; the stripped flame-retardant outer sheath 1 and the stripped flame-retardant inner sheath 2 are sleeved with the insulating lock catch 6 for insulation and fire prevention, and the triangular lug is arranged on the inner side surface of the elastic lock bar 6b to increase the friction force, so that the binding soft copper conductor 4 is prevented from falling off the connecting plug 7 and the connecting socket 8; meanwhile, the insulating locking pieces 6 are symmetrically hinged on the connecting plug 7 and the connecting socket 8 respectively, so that the connecting plug and the connecting socket can be opened and closed conveniently, and relevant connection dismantling operation can be carried out; adopt the back-fire relief wire to connect at the switch main brake, when catching fire, the back-fire relief wire can break off at first, then makes the trip of switch main brake, avoids the electricity to reveal.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (9)
1. The connecting joint of the self-power-off fireproof cable comprises the self-power-off fireproof cable, a connecting plug (7) and a connecting socket (8), and is characterized in that the self-power-off fireproof cable comprises a flame-retardant outer sheath (1), a flame-retardant inner sheath (2) arranged in the flame-retardant outer sheath (1), a plurality of uniformly distributed insulating sleeves (3) arranged in the flame-retardant inner sheath (2), a plurality of bundled soft copper conductors (4) arranged in the insulating sleeves (3), and a plurality of fire-retardant wires (5) arranged in the flame-retardant inner sheath (2); the connecting plug (7) is connected with the tail end of the combined soft copper conductor (4) on one side, one end of the connecting socket (8) is connected onto the connecting plug (7), the other end of the connecting socket (8) is connected with a plurality of combined soft copper conductors (4), conductive cores are arranged inside the connecting plug (7) and the connecting socket (8), and two symmetrical insulating locking pieces (6) are arranged between the connecting socket (8) and the flame-retardant outer sheath (1) and between the connecting plug (7) and the flame-retardant outer sheath (1); one end of the connecting plug (7) is provided with a plurality of uniformly distributed connecting plug jacks (7b), the connecting plug jacks (7b) are correspondingly sleeved on the binding soft copper conductor (4), one end of the connecting plug (7) is also provided with a fire-retardant jack I (7c), and the fire-retardant jack I (7c) is correspondingly sleeved on the fire-retardant wire (5); the other end of the connecting plug (7) is provided with two symmetrical insertion rods (7e), and insertion convex blocks (7f) are arranged on the insertion rods (7 e); one end of the connecting socket (8) is provided with a plurality of uniformly distributed socket jacks, the socket jacks are correspondingly sleeved on the binding soft copper conductor (4), one end of the connecting socket (8) is also provided with a fire-retardant jack II, and the fire-retardant jack II is correspondingly sleeved on the fire-retardant wire (5); the other end of the connecting socket (8) is provided with two symmetrical connecting and plugging holes (8b), and the connecting and plugging holes (8b) are correspondingly sleeved on the inserted rod (7 e); one end of the insulating locking piece (6) is provided with an elastic locking strip (6b), two ends of the elastic locking strip (6b) are respectively fixed with a locking block (6a), the locking block (6a) is provided with a screw hole, and the middle part of the other end of the insulating locking piece (6) is fixed with a hinge block (6 c).
2. A connector of a self-interrupting fireproof cable according to claim 1, wherein the inside of the connecting plug receptacle (7b) is stepped.
3. A connector of a self-interrupting fireproof cable according to any one of claims 1 to 2, wherein the inner diameter of the connector plug receptacle (7b) is smaller than the outer diameter of the insulating sheath (3), and the inner diameter of the firestop receptacle (7c) is smaller than the outer diameter of the firestop wire (5).
4. The connector of the self-power-off fireproof cable according to any one of claims 1 to 3, wherein two symmetrical hinge connection blocks (7a) are fixed on the outer side of the connector plug (7), two symmetrical connection locking grooves (7d) are further formed on the outer side of the connector plug (7), and the hinge connection blocks (7a) and the connection locking grooves (7d) are respectively located at two ends of the connector plug (7).
5. The connector of the self-power-off fireproof cable according to claim 1, wherein the socket jack is stepped inside, and two symmetrical connecting elastic rods (8a) are fixed at one end of the connecting socket (8).
6. The connector of the self-power-off fireproof cable according to claim 1 or 5, wherein the inner diameter of the socket insertion hole is smaller than the outer diameter of the insulating sleeve (3), and the inner diameter of the second fireproof insertion hole is smaller than the outer diameter of the fireproof wire (5).
7. The connector of the self-power-off fireproof cable according to claim 6, wherein the connecting elastic rod (8a) is clamped inside the corresponding connecting locking groove (7d), the length of the connecting elastic rod (8a) is less than that of the connecting locking groove (7d), and the width of the connecting elastic rod (8a) is greater than that of the connecting locking groove (7 d).
8. The connector of the self-power-off fireproof cable according to claim 1, wherein the inner diameter of the connecting insertion hole (8b) is smaller than the outer diameter of the insertion rod (7e), two symmetrical hinge connection blocks II (8c) are fixed on the outer side of the connecting socket (8), and the hinge connection blocks II (8c) are located near the other end of the connecting socket (8).
9. The connector of the self-power-off fireproof cable according to claim 8, wherein the hinged block (6c) is hinged between the first hinged connecting block (7a) and the second hinged connecting block (8c), the locking blocks (6a) of the two insulating locking pieces (6) on the same side are connected together through a screw hole matching bolt, the insulating locking pieces (6) are in a circular truncated cone shape, the inner diameter of the elastic locking strip (6b) is smaller than the outer diameter of the flame-retardant outer sheath (1), and the inner side surface of the elastic locking strip (6b) is provided with a triangular convex block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011634144.4A CN112864741A (en) | 2019-12-26 | 2019-12-26 | Self-power-off fireproof cable connecting joint |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911362276.3A CN111161910B (en) | 2019-12-26 | 2019-12-26 | Self-power-off fireproof cable connecting joint |
| CN202011634144.4A CN112864741A (en) | 2019-12-26 | 2019-12-26 | Self-power-off fireproof cable connecting joint |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911362276.3A Division CN111161910B (en) | 2019-12-26 | 2019-12-26 | Self-power-off fireproof cable connecting joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112864741A true CN112864741A (en) | 2021-05-28 |
Family
ID=70556613
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011634144.4A Withdrawn CN112864741A (en) | 2019-12-26 | 2019-12-26 | Self-power-off fireproof cable connecting joint |
| CN201911362276.3A Active CN111161910B (en) | 2019-12-26 | 2019-12-26 | Self-power-off fireproof cable connecting joint |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911362276.3A Active CN111161910B (en) | 2019-12-26 | 2019-12-26 | Self-power-off fireproof cable connecting joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN112864741A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498170A (en) * | 2022-01-17 | 2022-05-13 | 济宁市技师学院 | Quick electric connection structure for numerical control equipment |
| CN115440423A (en) * | 2022-10-05 | 2022-12-06 | 颜绍华 | Waterproof corrosion-resistant cable structure |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3406384A (en) * | 1966-08-26 | 1968-10-15 | Robert L. Hartman | Fire detector and preventer system |
| FR2315752A1 (en) * | 1975-06-24 | 1977-01-21 | Babled Frederic | Thermal overload protection for LV cable - has fuse wire installed inside cable which is monitored for continuity |
| DE10246450A1 (en) * | 2002-10-04 | 2004-04-29 | Wieland Electric Gmbh | Electrical connector |
| JP4165832B2 (en) * | 2007-03-12 | 2008-10-15 | 西日本電線株式会社 | Fireproof connector for cable |
| CN201868862U (en) * | 2010-02-03 | 2011-06-15 | 李孝杰 | Power supply circuit used for fireproof cable and preventing cable fire |
| CN203102965U (en) * | 2013-02-22 | 2013-07-31 | 河南华星电线电缆有限公司 | New overhead stranded wire |
| CN204230476U (en) * | 2014-09-28 | 2015-03-25 | 沈阳兴华航空电器有限责任公司 | A kind of band kayser small plastic connectors |
| CN106098202B (en) * | 2016-06-07 | 2018-02-16 | 国网山东省电力公司栖霞市供电公司 | A kind of power cable with early warning detection function |
| CN109038030B (en) * | 2018-08-01 | 2024-01-05 | 苏州智绿科技股份有限公司 | Single-core metal connector |
| CN109462065A (en) * | 2018-11-30 | 2019-03-12 | 中航光电科技股份有限公司 | A kind of connector-cable component suitable for extreme harsh environment |
-
2019
- 2019-12-26 CN CN202011634144.4A patent/CN112864741A/en not_active Withdrawn
- 2019-12-26 CN CN201911362276.3A patent/CN111161910B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114498170A (en) * | 2022-01-17 | 2022-05-13 | 济宁市技师学院 | Quick electric connection structure for numerical control equipment |
| CN114498170B (en) * | 2022-01-17 | 2023-09-05 | 济宁市技师学院 | Quick electric connection structure for numerical control equipment |
| CN115440423A (en) * | 2022-10-05 | 2022-12-06 | 颜绍华 | Waterproof corrosion-resistant cable structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111161910A (en) | 2020-05-15 |
| CN111161910B (en) | 2021-10-26 |
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Legal Events
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| PB01 | Publication | ||
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Application publication date: 20210528 |