Once withhold the formation type cable connector
Technical field
The present invention relates to the cable connector that uses under a kind of coal mine, especially relate to a kind of formation type cable connector of once withholding.
Background technology
Humid environment under the coal mine, dust is many, is subject to solid the impacting of thing such as broken coal, spoil etc. of dropping, and the used cable of control appliance generally adopts the rubber plastic sheath of metal armouring sheath or inner fiberfill fibers layer.The jointing that under tensile load, is electrically connected between the mechanical strength of protected cable terminal portion, the realization conductor is arranged on the end of sheath.At present the armoured cable joint that uses of down-hole belongs to whole fixed, need carry out the secondary assembling, process comparatively loaded down with trivial detailsly, and the while cable joint can not be adjusted the plug angle, and whole cable can not freely be placed and twist.
Summary of the invention
The object of the present invention is to provide a kind of dustproof, waterproof and the adjustable formation type cable connector of once withholding of plug angle.
For realizing above-mentioned purpose, the present invention can take following technical proposals:
The formation type cable connector of once withholding of the present invention; Comprise the connector that is arranged on sheath place, the left and right end of cable; Said connector is for be sleeved on the ladder sleeve pipe and the ladder fuse of cable end from outside to inside successively; The outer peripheral face of the narrow tube of said ladder sleeve pipe is provided with annular boss, forms groove between the ladder platform of said annular boss and ladder sleeve pipe; The narrow tube of ladder fuse extends in the cable cover(ing), and the large diameter pipe of ladder fuse is sleeved on the narrow tube of ladder sleeve pipe; On the end faying face of ladder fuse and ladder sleeve pipe annular boss, offer pin-and-hole respectively vertically, be provided with bearing pin in it; Extend on cable cover(ing) from the groove of ladder sleeve pipe narrow tube and to be provided with the protection overcoat; In the large diameter pipe of said ladder sleeve pipe, be fitted with the socket that is electrically connected with cable inner conductor.
Be respectively arranged with positioning convex ring on the inwall at said protection overcoat end and middle part, said positioning convex ring snaps in respectively in the groove and the annular groove between ladder fuse ladder platform and the cable cover(ing) of ladder sleeve pipe; On the said ladder fuse outer peripheral face that extends in the cable cover(ing) and with the inner peripheral surface of the corresponding protection overcoat in its position on all offer the back taper groove.
Be respectively arranged with sealing ring on the faying face between said ladder sleeve pipe, the ladder fuse and on the faying face between the ladder sleeve pipe, socket, reach the purpose of water proof and dust proof.
The outer peripheral face of said socket is provided with double wedge, and the inner peripheral surface of ladder sleeve pipe is provided with the anticreep groove corresponding with said double wedge position, to solve the pull-off problem of socket.
Be filled with casting glue in the cavity between said ladder sleeve pipe and the socket, between ladder sleeve pipe and casting glue, be provided with alignment pin.Dustproof and the effect that is sealedly and fixedly connected have been strengthened.
Offer the location slot on the front inner wall of said ladder sleeve pipe vertically, said socket outer wall is provided with the locating piece that is complementary with it.
On the front inner wall of said ladder sleeve pipe vertically symmetry offer at least one the location slot, said socket outer wall is provided with the locating piece that is complementary with it.
The invention has the advantages that can not rotating of having solved that existing armoured cable connector exists, can not adjust the plug angle; Electric-connected socket is drawn out easily; Can not once withhold the technical problem of moulding, have good dust-proof waterproof protecting against shock performance, can practice thrift installation time in a large number; Reduce working strength of workers, connect applicable to the various cables that carry out Equipment Control in the work condition environment abominable under the coal mine.This connector has limited the axial relative displacement between ladder sleeve pipe and the ladder fuse on the one hand; Can make the ladder sleeve pipe do rotating in a circumferential direction on the other hand less than a week with respect to the ladder fuse; In addition; Protection overcoat and ladder fuse are fixedly connected into one, make the rotation of protection overcoat and ladder fuse synchronous, can adjust the angle of connector plug easily; The axial bearing pin that is provided with respectively on ladder sleeve pipe and the ladder fuse can limit the anglec of rotation of ladder sleeve pipe with respect to the ladder fuse, avoids causing electric conductor line winding distortion impaired because of rotation.The socket at cable two ends is distinguished with the locating piece that is provided with on the outer wall, makes the gang socket at two ends can not be general, to reach the function of anti-mis-insertion, has guaranteed electric security performance; Double wedge on the socket outer peripheral face can improve the anti-pull-off function of socket greatly; Multi-stage sealed circle and fill casting glue and isolate with space outerpace inner has improved the preventing dust of connector, waterproof and humidity resistance greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in the figure; The formation type cable connector of once withholding of the present invention; Comprise the connector that is arranged on sheath place, the left and right end of cable; The ladder sleeve pipe 1 and ladder fuse 2 of said connector for being sleeved on cable end from outside to inside successively, the outer peripheral face of the narrow tube of said ladder sleeve pipe 1 is provided with annular boss 3, forms groove between the ladder platform of said annular boss 3 and ladder sleeve pipe; The narrow tube of ladder fuse 2 extends in the cable cover(ing) 4, and the large diameter pipe of ladder fuse 2 is sleeved on the narrow tube of ladder sleeve pipe 1; On the end faying face of ladder fuse 2 and ladder sleeve pipe annular boss 3, offer pin-and-hole respectively vertically, be provided with bearing pin 5 in it; Extend on cable cover(ing) 4 from the groove of ladder sleeve pipe 1 narrow tube and to be provided with protection overcoat 6; In the large diameter pipe of said ladder sleeve pipe 1, be fitted with the socket 7 that is electrically connected with cable inner conductor through contact pin or jack.Cable end is clamped between ladder sleeve pipe 1 and the cable cover(ing) 4 with tension and seal form through extruding location, the ladder fuse 2 of protection overcoat 6 and ladder fuse 2, once withholds all parts and all locatees, and has saved installation time; The arc pin-and-hole and the bearing pin 5 that are opened in vertically on ladder fuse 2 and the ladder sleeve pipe 1 make ladder sleeve pipe 1 and ladder fuse 2 can rotate (within 360 degree) relatively, both have been convenient to adjustment plug angle and have protected inner wire harness excessively to cause damage because of rotating.
Be respectively arranged with positioning convex ring 8,9 on the inwall at said protection overcoat 6 ends and middle part; Said positioning convex ring 8,9 snaps in respectively in the groove and the annular groove between ladder fuse ladder platform and the cable cover(ing) of ladder sleeve pipe, is used to limit ladder sleeve pipe 1 and withholds axially motion of back with ladder fuse 2; On said ladder fuse 2 outer peripheral faces that extend in the cable cover(ing) and with the inner peripheral surface of the corresponding protection overcoat 6 in its position on all offer the back taper groove, make protection overcoat 6 constitute indirect interlock after withholding with ladder fuse 2 outer surfaces, cable cover(ing) 4 is fixing.
Be respectively arranged with sealing ring 10,11 on the faying face between said ladder sleeve pipe 1, the ladder fuse 2 and on the faying face between the ladder sleeve pipe 1, socket 7, in order in adverse circumstances, to increase dustproof, waterproof effect.
The outer peripheral face of said socket 7 is provided with double wedge, and the inner peripheral surface of ladder sleeve pipe 1 is provided with the anticreep groove corresponding with said double wedge position; Double wedge drew in when socket 7 was packed ladder sleeve pipe 1 into, and double wedge opens to the interior back of anticreep groove, can prevent socket 7 pull-off from ladder sleeve pipe 1.
Be filled with casting glue 12 in the cavity between said ladder sleeve pipe 1 and the socket 7, between ladder sleeve pipe 1 and casting glue 12, be provided with alignment pin 13; As sealing, can be used as the assist location between socket 7 and the ladder sleeve pipe 1 on the other hand on the one hand.
Offer the location slot on the front inner wall of said ladder sleeve pipe 1 vertically, said socket 7 outer walls are provided with the locating piece that is complementary with it.Because the socket wiring in cable two terminal adapters is different, in order to prevent to misplug between the two, can on the outer peripheral face of a side steps sleeve pipe, double flute be set, be used for realizing the double flute location with the socket that matches; On the outer peripheral face of opposite side ladder sleeve pipe a groove is only arranged, with the socket list groove location that matches, realize blind inserting only; Improved efficiency of assembling.