CN104241961B - Bolted flame-proof cable coupling device for mine - Google Patents
Bolted flame-proof cable coupling device for mine Download PDFInfo
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- CN104241961B CN104241961B CN201310231566.0A CN201310231566A CN104241961B CN 104241961 B CN104241961 B CN 104241961B CN 201310231566 A CN201310231566 A CN 201310231566A CN 104241961 B CN104241961 B CN 104241961B
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Abstract
The present invention discloses a kind of bolted flame-proof cable coupling device for mine, it include the plug and socket being connected and fixed by ring flange, at least one group of ring flange on the shell of plug and socket for can on shell radial rotary split structure, the requirement of machining accuracy is low, convenient for assembly and production cost it is low；It is additionally provided with a split type detachable cable anti-drop device on the outside of the cable entry of the tail portion of plug and socket, so that cable is fixed reliable, to which inventive can be more stable, use is safer；It is provided with seal between each conducting rod inside plug casing, seal realizes the insulation of each conducting rod by insulation tube, and insulation effect is good, and security performance is secure；In addition, the shell of socket uses the split structure of the embedding inner bushing ring of shell, inner bushing ring can be selected conduct electricity very well, rustless copper or stainless steel material, shell uses steel material at low cost, and to which overall performance of the present invention is superior, and production cost is low.
Description
Technical field
The present invention relates to cable connectors, are specifically to be related to a kind of bolted flame-proof cable coupling device for mine.
Background technology
Existing bolted flame-proof cable coupling device for mine is mainly made of plug and socket two parts, on the shell of plug and socket
It is provided with ring flange, when plug and socket is plugged in together, their flange surface is against together, and two ring flanges are passed through by bolt
On pilot hole screw on nut and fix two ring flanges, so that plug and socket is reliably linked together.The tail of plug and socket
Portion is both provided with cable entry, will be introduced into plug, the cable in socket compresses；Plug includes phase line conducting rod, ground wire
The conducting rods such as conducting rod, signal wire conducting rod.
Ring flange on the plug and socket shell of the prior art is fixed flange plate structure, this processing to ring flange
Required precision is just very high, if the pilot hole position of two ring flanges has deviation, two ring flanges that can not just be fixed by bolt, nut,
Must do over again makes hole position to could just use, therefore the production cost of plug and socket is high, and interchangeability is poor.
In addition, the cable entry of the plug and socket tail portion of the prior art is clamp nut formula cable entry：
Include the cross over pipe being integrated with respective housings, clamp nut, pressure ring and sealing ring, clamp nut is tightened in unicom tube end pair
Pressure ring pressure inside cross over pipe, pressure ring, which squeezes the sealing ring in cross over pipe, makes sealing ring generation be radially expanded, and embraces and therefrom wears
The cable crossed.Although the effect of such structure sealing is pretty good, it is easy in actual use there is a situation where cable loosening,
The using effect for seriously affecting cable connector, there are prodigious security risks.
In addition, each conducting rod of the plug of the prior art may be contained in the circle grommet inside plug casing, circle grommet and
It is provided with insulator between each conducting rod, the insulator of this spline structure is formed by injection molding, is often molded
Bad situation, the bad insulating capacity for often resulting in insulating part of injection molding is insufficient, easily breakdown during the energization, and then causes
Safety accident.
Invention content
For the above situation, the present invention provides a kind of bolted flame-proof cable coupling device for mine, by optimizing the structure of the present invention, makes this
The ring flange of invention plug and socket is easily assembled, and the lead-in cable compression of plug and socket is firm, and makes each conduction of plug
Insulation performance is reliable between bar.
To achieve the goals above, technical scheme is as follows：
Bolted flame-proof cable coupling device for mine, including plug and socket, the plug and socket is by being respectively arranged on its shell
Ring flange be connected and fixed, the tail portion of the plug and socket is respectively arranged with cable entry, the jack shell
It is provided with seal between each conducting rod in internal portion；It is characterized in that, the ring flange on the shell of the plug and socket is extremely
Rare one group for can on shell radial rotary split structure.
The cable entry includes the cross over pipe as a part for plug or Socket casing, the cross over pipe tail end
It is provided with one end stepped hole, a sealing ring and a pressure ring, the pressure are sequentially installed with outward by step end face in the stepped hole
Be provided on the outside of ring one with communicating pipe tail end external screw thread cooperation, the clamp nut that is pressed on pressure ring.
It is additionally provided with a split type detachable cable anti-drop device on the outside of the clamp nut of the cable entry, it is described
Split type detachable cable anti-drop device includes an ox that can pass through cable being fixed on the outside of clamp nut by screw
Angie type retainer plate is fixed with two compression strips for the cable that is fixedly clamped on the ox horn formula retainer plate by bolt and nut.
The plug seal includes the circle grommet of the part as plug casing, the head setting of the round grommet
There is a fixed disc, phase line insulation tube, ground wire insulation tube and letter are respectively arranged in multiple through-holes inside the fixed disc
Number line insulation tube, the tail portion of the round grommet are provided with a ground connection pressing plate, the ground connection pressing plate and fixed disc it is centrally disposed
A fixed link be fixed together, the tail portion of the phase line insulation tube, ground wire insulation tube and signal wire insulation tube is also set respectively
Be equipped with phase line insulation pressure ring, ground wire insulation pressure ring and signal wire insulation pressure ring, phase line insulation pressure ring, ground wire insulation pressure ring and
The rear end of signal wire insulation pressure ring is pushed down by a pressing plate, which is fixed together by fastener and ground connection pressing plate.
Wherein, described can the structure of the ring flange of the split structure of radial rotary include as shell on shell
The circle grommet of a part and the platform that circle protrusion is provided on the ring flange justified on grommet, the outer circle of the round grommet
Rank, the endoporus of the ring flange are the stepped hole that outer end diameter is small, inner end diameter is big, coordinate with the step in circle grommet outer circle, realize
The axially position of ring flange.
Be provided with a circle semi-circular recesses in the outer rim of the step of the protrusion of the round grommet, the endoporus of the ring flange with
Semi-circular recesses correspondence is also equipped with a circle semi-circular recesses, and multiple steel balls are provided in the described two circles semi-circular recesses,
It is additionally provided with the perforation of at least one and its semi-circular recesses, the hole for being put into steel ball on the outside of the ring flange, is set in the hole
It is equipped with the anti-lost part for preventing steel ball from dropping out.
In addition, the shell of the socket is the split structure of the embedding inner bushing ring of shell, shell and the plug pair of the socket
Slotting part is set as a circular hole, and an inner bushing ring closed to inserting with plug, the inner bushing ring and circular hole are arranged in the circular hole
Between for interference fit.
The invention has the advantages that ring flange can be with radial rotary, the requirement to machining accuracy reduces, consequently facilitating dress
Match and production cost is low, price is low；It is reliable that the setting of cable shedding-proof apparatus makes cable fix, to which inventive can be more stable,
Using safer；Plug seal uses the form of insulation tube, keeps insulation effect of the present invention good, security performance is secure；Separately
Outside, Socket casing uses split structure, inner bushing ring can be selected conduct electricity very well, rustless copper or stainless steel material,
Shell uses steel material at low cost, and to which overall performance of the present invention is superior, and production cost is low.
Description of the drawings
Fig. 1 is that bolted flame-proof cable coupling device for mine of the present invention removes the structural schematic diagram after cable shedding-proof apparatus；
Fig. 2 is that bolted flame-proof cable coupling device for mine of the present invention removes the schematic cross-sectional view after cable shedding-proof apparatus；
Fig. 3 is the partial structural diagram of the cable shedding-proof apparatus of bolted flame-proof cable coupling device for mine of the present invention；
Fig. 4 is the partial structural diagram of the plug seal of bolted flame-proof cable coupling device for mine of the present invention.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Referring to Fig. 1, Fig. 2, bolted flame-proof cable coupling device for mine, including plug 2 and socket 1, the plug 2 and socket 1 are by dividing
The ring flange not being set on its shell is connected and fixed, and the tail portion of the plug 2 and socket 1 is respectively arranged with cable and draws
Enter device 3, seal 4 is provided between each conducting rod of 2 enclosure interior of the plug.
At least one group of ring flange on the shell of the plug 2 and socket 1 for can on shell radial rotary point
Body formula structure.Described can the structure of the ring flange of the split structure of radial rotary include one as shell on shell
Point circle grommet 21 and the ring flange 22 on circle grommet, the platform of circle protrusion is provided in the outer circle of the round grommet 21
Rank 21a, the endoporus of the ring flange 22 are the stepped hole that outer end diameter is small, inner end diameter is big, with the step 21a in circle 21 outer circle of grommet
The axially position of ring flange 22 is realized in cooperation.
Ring flange 22 can be by being realized in the radial rotary of circle grommet 21 with lower structure：The platform of the protrusion of the round grommet
A circle semi-circular recesses are provided in the outer rim of rank 21a, the endoporus of the ring flange 22 is corresponding with the semi-circular recesses to be also provided with
There are a circle semi-circular recesses, is provided with multiple steel balls 23 in the described two circles semi-circular recesses, the outside of the ring flange 22 is also
It is provided with the perforation of at least one and its semi-circular recesses, the hole for being put into steel ball 23, being provided in the hole prevents steel ball from dropping out
Anti-lost part 24.When two ring flanges of plug 2 and socket 1 will be fixed together, radial rotary adjusts ring flange 22, then steel ball
It is rolled in 23 groove between ring flange 22 and circle grommet 21, the rotation of freedom and flexibility can be realized in ring flange 22, makes two methods
The pilot hole of blue disk corresponds to, and smoothly passes through bolt.Ring flange can make requirement drop of the present invention to machining accuracy with radial rotary
It is low, not only it is convenient for assembly and reduces production cost.
The cable entry 3 includes the cross over pipe 31 as a part for plug or Socket casing, the cross over pipe
31 tail ends are provided with one end stepped hole, and a sealing ring 32 and a pressure ring are sequentially installed with outward by step end face in the stepped hole
33, the outside of the pressure ring 33 be provided with one with 31 tail end of communicating pipe external screw thread cooperation, the clamp nut 34 that is pressed on pressure ring.
Referring to Fig. 3,34 outside of clamp nut of the cable entry 3 is additionally provided with a split type detachable cable and prevents
De- device, the split type detachable cable anti-drop device includes one be fixed on by screw 51 on the outside of clamp nut can
Across the ox horn formula retainer plate 52 of cable, two are fixed with for clamping by bolt and nut 53 on the ox horn formula retainer plate 52
The compression strip 54 of fixed cable.Two compression strips 54 are reliably clamping by cable, avoid cable from loosening, shake, make the present invention
Performance is more stable, and use is safer.
Referring to Fig. 4, the plug seal 4 includes the circle grommet 21 of the part as plug casing, the circle lining
The head of ring 21 is provided with a fixed disc 41, and phase line insulation is respectively arranged in multiple through-holes inside the fixed disc 41
Pipe 42, ground wire insulation tube 43 and signal wire insulation tube（It is not shown in figure）, the tail portion of the round grommet 21 is provided with an earth contact pressure
Plate 44, the ground connection pressing plate 44 and a centrally disposed fixed link 45 for fixed disc 41 are fixed together, and the phase line is exhausted
The tail portion of edge pipe 42, ground wire insulation tube 43 and signal wire insulation tube is also respectively provided with phase line insulation pressure ring 42a, ground wire insulation pressure
Ring 43a and signal wire insulation pressure ring（It is not shown in figure）, the phase line insulation pressure ring 42a, ground wire insulation pressure ring 43a and signal wire
The rear end of insulation pressure ring is pushed down by a pressing plate 46, which is fixed together by fastener 47 and ground connection pressing plate 44.Plug
Seal 4 keeps insulation effect of the present invention good, security performance is secure using the form of insulation tube.
In addition, referring to Fig. 2, the shell of the socket 1 is the split structure of the embedding inner bushing ring of shell, the shell of the socket
11 are set as a straight hole with plug to slotting part, and an inner bushing ring 12 closed to inserting with plug is arranged in the straight hole, described
It is interference fit between inner bushing ring 12 and straight hole 11.Such split structure, the selection of inner bushing ring 12 can be conducted electricity very well,
Rustless copper or stainless steel material, shell 11 use steel material at low cost, to ensure that plug face will not get rusty, performance
It is reliable and stable, good conductivity, and production cost is low.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection domain by appended claims and its
Equivalent defines.
Claims (6)
1. bolted flame-proof cable coupling device for mine, including plug and socket, the plug and socket is by being respectively arranged on its shell
Ring flange is connected and fixed, and the tail portion of the plug and socket is respectively arranged with cable entry, the plug casing
It is provided with seal between internal each conducting rod；It is characterized in that, the ring flange on the shell of the plug and socket is at least
Have one group for can on shell radial rotary split structure,
The plug seal includes the circle grommet of the part as plug casing, and the head of the round grommet is provided with one
Fixed disc is respectively arranged with phase line insulation tube, ground wire insulation tube and signal wire in multiple through-holes inside the fixed disc
The tail portion of insulation tube, the round grommet is provided with a ground connection pressing plate, centrally disposed one of the ground connection pressing plate and fixed disc
Root fixed link is fixed together, and the tail portion of the phase line insulation tube, ground wire insulation tube and signal wire insulation tube is also respectively provided with
Phase line insulation pressure ring, ground wire insulation pressure ring and signal wire insulation pressure ring, the phase line insulation pressure ring, ground wire insulation pressure ring and signal
The rear end of line insulation pressure ring is pushed down by a pressing plate, which is fixed together by fastener and ground connection pressing plate.
2. bolted flame-proof cable coupling device for mine according to claim 1, which is characterized in that the cable entry includes conduct
The cross over pipe of a part for plug or Socket casing, the cross over pipe tail end are provided with a stepped hole, and the stepped hole is interior by platform
Rank end face is sequentially installed with a sealing ring and a pressure ring outward, and the external screw thread of one and communicating pipe tail end are provided on the outside of the pressure ring
The clamp nut for coordinating, being pressed on pressure ring.
3. bolted flame-proof cable coupling device for mine according to claim 2, which is characterized in that the compression spiral shell of the cable entry
Female outside is additionally provided with a split type detachable cable anti-drop device, and the split type detachable cable anti-drop device includes passing through
Screw is fixed on one on the outside of the clamp nut ox horn formula retainer plate that can pass through cable, pass through on the ox horn formula retainer plate
Bolt and nut is fixed with two compression strips for the cable that is fixedly clamped.
4. bolted flame-proof cable coupling device for mine according to claim 1, which is characterized in that it is described can on shell radial rotary
Split structure ring flange the structure circle grommet that includes a part as shell and the flange on circle grommet
Disk is provided with the step of circle protrusion in the outer circle of the round grommet, and the endoporus of the ring flange is that outer end diameter is small, inner end diameter is big
Stepped hole, with circle grommet outer circle on step coordinate, realize the axially position of ring flange.
5. bolted flame-proof cable coupling device for mine according to claim 4, which is characterized in that the step of the protrusion of the round grommet
A circle semi-circular recesses are provided in outer rim, the endoporus of the ring flange is corresponding with the semi-circular recesses to be also equipped with a circle semicircle
Connected in star, it is described this two circle semi-circular recesses in be provided with multiple steel balls, be additionally provided on the outside of the ring flange at least one
It is penetrated through with its semi-circular recesses, the hole for being put into steel ball, the anti-lost part for preventing steel ball from dropping out is provided in the hole.
6. bolted flame-proof cable coupling device for mine according to claim 1, which is characterized in that the shell of the socket is in shell is embedding
The shell of the split structure of grommet, the socket is set as a circular hole with plug to slotting part, is arranged one in the circular hole
The inner bushing ring closed to inserting with plug is interference fit between the inner bushing ring and circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310231566.0A CN104241961B (en) | 2013-06-09 | 2013-06-09 | Bolted flame-proof cable coupling device for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310231566.0A CN104241961B (en) | 2013-06-09 | 2013-06-09 | Bolted flame-proof cable coupling device for mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104241961A CN104241961A (en) | 2014-12-24 |
| CN104241961B true CN104241961B (en) | 2018-08-21 |
Family
ID=52229573
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310231566.0A Active CN104241961B (en) | 2013-06-09 | 2013-06-09 | Bolted flame-proof cable coupling device for mine |
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| CN (1) | CN104241961B (en) |
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|---|---|
| CN104241961A (en) | 2014-12-24 |
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