Insertion type pipeline cut-off device
Technical field: the utility model relates to the device that a kind of pipeline dams, particularly normally moves at pipeline, and the device that dams under the valveless state.
Background technique: the lateral in oil, gas, water, heating coil road, particularly end branch's pipeline, usually independent control valve is arranged seldom all, when its pipeline or its facility maintenance and repair, generally all be that the upstream total valve is closed.Like this, the one, the while has also been closed other branch line, influences the normal operation work of other branch line, so that causes unnecessary loss; The 2nd, in the state of emergency, and under the situation that upstream total valve inconvenience is closed, the repairing of implementing pipeline or facility is very difficult.In addition, when increasing or prolong branch line, a kind of device is arranged, this device has a pipe clip, the one side perforate of pipe clip, and be provided with the gate valve joint, be connected with a gate valve, the other end of gate valve is connected with an outer conduit, establish pushnut on the conduit, an opening drilling rod is housed in the stomidium of nut movingly, and with plain cushion and jump ring axially locating, wrench is established in the outer end of drilling rod, opening end dress drill chuck and drill bit.When increasing branch line, pipe clip is stuck in desire branch pipe place, when prolonging pipeline, pipe clip is stuck in the end of pipeline, and gate valve is opened fully, by pushnut drill bit is passed gate valve until the outer wall of delivering to pipe, move spanner then, drive drill bit by drilling rod and rotate, the not open close pushnut of crossing is pushed ahead, and is saturating until tube wall is bored, finish the pipe perforate earlier, after this retreat drilling rod and drill bit in two steps by pushnut, the first step retreats to drill bit the outside of gate valve flashboard, closing gate valve earlier, to prevent gas, the liquid benefit goes out, second step withdrawed from fully again, took off outer silk conduit at last, promptly can increase or prolong branch line with the gate valve interface.This technology realizes pipe clip and gate valve as pipeline fittings.
Summary of the invention: the purpose of this utility model provides a kind of insertion type pipeline cut-off device, normally moves under the working state at pipeline, realizes the quick maintenance and repair of pipeline and facility thereof, thereby overcomes the above-mentioned defective of existing in prior technology.The utility model is to realize under the technology enlightenment of above-mentioned increase and prolongation branch line, it has a pipe clip, the one side perforate of pipe clip, and be provided with the gate valve joint, and being connected with a gate valve, the other end of gate valve is connected with an outer conduit, establish pushnut on the outer silk conduit, the screw mandrel conduit is housed in the stomidium of pushnut movingly, and, the screw mandrel that the front end band can be fastened the sealing cylindrical void is housed in the screw mandrel conduit with the ring washer axially locating; The oblique beginning hole of the front end of screw mandrel conduit, the part of silk conduit was thick slightly outside the stage casing can enter, become movingly with outer silk conduit, gear carrier is equipped with in the rear end, adorn a large bevel gear on the gear carrier, rocking handle is housed on the large bevel gear, and other has the bevel pinion of a band internal thread to be fitted on the above-mentioned said screw mandrel, and is meshed with above-mentioned said large bevel gear.During use, pipe clip is stuck on the place ahead working pipe of desire maintenance pipeline or its facility, takes off pushnut and incidental screw mandrel conduit etc., change the pushnut of existing pipe punching, with prior art perforate on pipe in advance with subsidiary rod bit; After perforate finishes, fastened Stamping Steel Ribbon at the above-mentioned screw mandrel front end that takes off, shaking rocking handle rotates by big bevel pinion, the drive screw mandrel moves, in the screw mandrel front end is fastened the whole retraction screw mandrel of the Stamping Steel Ribbon conduit of system, the pushnut that will attach screw mandrel conduit etc. again changes the outfit outside on the silk conduit, and the screw mandrel conduit is packed in the outer silk conduit; By pushnut the screw mandrel conduit is delivered to the gate valve flashboard outside earlier, open gate valve, again the screw mandrel conduit is sent in the working pipe, be affixed on the tube wall, then, shake rocking handle in the other direction, Stamping Steel Ribbon is all ejected by screw mandrel until the front end top; By gear carrier rotary screw rod conduit, Stamping Steel Ribbon is twined on the screw mandrel catheter proximal end again,, be full of the working pipe tube chamber, promptly realize the task of damming of pipeline until balling-up.After pipeline dams, pipeline or the facility maintenance for the treatment of its rear portion finish, can turn round the screw mandrel conduit slightly, make Stamping Steel Ribbon loosening, rotation crank drives the screw mandrel conduit by big bevel pinion and moves again, in the whole retraction screw mandrel of the Stamping Steel Ribbon of screw mandrel front end conduit, earlier the front end of screw mandrel conduit is retreated to the gate valve flashboard outside by pushnut, behind the closing gate valve, again pushnut and subsidiary part thereof are all taken off; At last, on the opening drilling rod that the prior art pushnut is equipped with, adorn a sleeve and EXPANSION ANCHOR BOLTS again, pushnut is contained on the outer silk conduit, and drilling rod and EXPANSION ANCHOR BOLTS are sent into outer silk conduit to the gate valve flashboard outside, open gate valve, pass gate valve again and EXPANSION ANCHOR BOLTS is sent in the hole of opening on the work tube wall, rotate drilling rod by spanner, sieve cap that drives EXPANSION ANCHOR BOLTS rotates, tighten EXPANSION ANCHOR BOLTS, realization work tube wall sealing of hole takes off pipe clip then, finish pipeline dam the maintenance after follow-up work.
The utility model modern design, simple and reasonable, the oil, gas, water, the warm lateral that are used for being in operation work dam, and implement the maintenance and repair of pipeline and facility thereof, and be convenient to use, can not influence the normal operation work of other lateral.
Description of drawings: accompanying drawing is that master of the present utility model looks sectional view.
Embodiment: accompanying drawing has provided a specific embodiment of the present utility model, with reference to the accompanying drawings, 1 is pipe clip among the figure, and the one side perforate of pipe clip 1 is welded with gate valve joint 2, be connected with a gate valve 4, the other end of gate valve 4 is connected with an outer conduit 5, establishes pushnut 7 on the outer silk conduit 5, and screw mandrel conduit 6 is housed in the stomidium of pushnut 7 movingly, and, the screw mandrel 3 that the front end band can be fastened the sealing cylindrical void is housed in the screw mandrel conduit 6 with ring washer 8 axially locating; The oblique beginning hole of the front end of screw mandrel conduit 6, the part of silk conduit 5 was thick slightly outside the stage casing can enter, with 5 one-tenths in outer silk conduit movingly, in the perforate of work tube wall, and during the unlatching gate valve, play sealing oil gas water, gear carrier 10 is equipped with in the rear end, adorns a large bevel gear 11 on the gear carrier 10, and rocking handle 9 is housed on the large bevel gear 11, other has the bevel pinion 12 of a band internal thread to be fitted on the above-mentioned said screw mandrel 3, and is meshed with above-mentioned said large bevel gear 11.
