CN2136378Y

CN2136378Y - Light hydraulic external matching device for pipeline

Info

Publication number: CN2136378Y
Application number: CN 92236722
Authority: CN
Inventors: 冯树刚
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-23
Filing date: 1992-10-23
Publication date: 1993-06-16
Anticipated expiration: 2002-10-23

Abstract

The utility model relates to a pipe mouth butt joint device for pipeline construction, which comprises an annular template, a manual hydraulic oil pump, a hydraulic ram, etc. The light hydraulic external matching device for pipeline adopts a ring type standard circle structure mould. The hydraulic ram is controlled by the manual hydraulic oil pump to drive the standard circle structure mould to clamp the mouth of pipe. The contact mode of the device is surface contact, solving the defect of the point contact of existing lead screw matching device. The stress around the mouth of pipe is homogeneous. The two mouths of pipe about to butt joint restore the standard concentric circles status under the stricture of the standard circle mould, solving the defects of long time of matching, hard exertion, easy deformation of mouth of pipe, erroneous mouth of pipe, etc. in the existing lead screw outer matching device.

Description

Light hydraulic external matching device for pipeline

The utility model relates to a kind of facility of pipeline construction mouth of pipe butt joint.

At present, the method for pipeline construction mouth of pipe butt joint both at home and abroad has internal clamp and lead screw type external clamp.Equipment such as airbrasive input expense as the required typing of internal clamp is higher, and weight is bigger, and the construction degree is loaded down with trivial details.Adopt manyly to leading screw around the lead screw type external clamp and for example, the mouth of pipe, adjust the mouth of pipe with the method for artificial turn spiral jacking, more owing to leading screw, it is right to be not easy to transfer, and transfers longer to the time of one mouth of pipe.Because of it is the adjustment of employing multiple spot, therefore be difficult to avoid local mouth of pipe distortion and mismatch phenomenon.

The purpose of this utility model is to provide a kind of light hydraulic pipeline external clamp, adopt ring-like standard round structure mold, clamp the mouth of pipe with the operating hydraulically operated oil cylinder traction of manual hydraulic oil pump standard round structure mold, the existing leading screw of change is the face contact to the some contact of mouthpart, and is stressed even around the mouth of pipe.Make the mouth of pipe under the constraint of standard round mould, make two mouths of pipe that will dock recover the concentrically ringed state of standard.Transfer the line up time long thereby overcome existing leading screw external clamp, defective and deficiencies such as effort, mouth of pipe distortion and mismatch.

The light hydraulic pipeline external clamp of Fig. 1 structural representation

The A-A sectional drawing of Fig. 2 Fig. 1

Describe the utility model in detail below in conjunction with accompanying drawing. Such as Fig. 1,2, the ring-like template 2 of standard round that light hydraulic external matching device for pipeline is split (two lobes) by twice connects into stereotyped structure mold 1 with many balance plates 3. Balance plate 3 and bipassage ring section mould plate 2 simultaneously across is connected, and be concordant bottom the interior ring, and balance plate 3 two ends are respectively wide to go out 30～70 millimeters on twice outer shroud template. Balance plate 3 plays a part to gain in strength in structure mold and stability for 3--12, plays again balanced action when line up. Semi-ring one end opening of pivot pin 4 connecting ring section mould plates 2 is extracted pivot pin 4 out, two semi-rings to mouthpart can be taken apart. Be equipped with open slot 5 in the ring-like Die and mould plate 2, the screw thread position was contained in the breach when open slot 5 was used for the screwed pipe counterpart, and open slot 5 is 6～10. The other end opening both sides of ring-like template 2 are connecting pin axillare 6 respectively, and on a side bearing pin plate 6 fixed hydraulic oil cylinder 8. Hydraulic jack 8 is connected by plate hole 7 with bearing pin plate 6. The axis of the piston of hydraulic jack 8 can overlap with the bearing pin plate 6 of opposite side. Manual hydraulic oil pump 11 connects into path by oil pipe 9 and snap joint 10 with hydraulic jack 8. Set upright accent bar jack 12 in the setting of balance plate 3 middle parts. When counterpart, with transferring bar patchhole 12, can set upright and to transfer mouth of pipe gap again to mouthpart. The utility model can relate to the enforcement caliber and reach 13200 millimeters of φ 108～φ.

Embodiment: light hydraulic pipeline external clamp described in the utility model will assemble the mouthpart inspection earlier.To be enclosed within on the mouth of pipe to be fixed half to mouthpart then.Insert righting hole 12 at two with the accent bar, the levelling bar rides over treats fixedly mouth of pipe place.When treating that another root pipe inserts mouthpart, mix up mouth of pipe gap, the piston shaft of hydraulic jack 8 is overlapped on the opposite side bearing pin plate 6, and operates hand oil pump with the accent bar.The hydraulic jack traction clamps two mouths of pipe to mouthpart, and when confirming to reach the counterpart standard, hand oil pump stops on this operation point.Treat a little to weld the feather valve of opening hand oil pump behind the mouth of pipe, oil cylinder automatically resets.Withdraw from piston shaft, extraction pivot pin 4 both can all be opened ring type structure and unload mouthpart.

Its advantage is: according to the concentrically ringed principle of same diameter pipeline, adopt ring-like standard round structure mold, with manual hydraulic oil pump transmission oil cylinder, the hitch structure mold cramping is with footpath pipe mouth, cause the mouth of pipe under the constraint of standard round mould, crushed element recovers the standard round state, and the space segment from structure welds the mouth of pipe then. Thereby the utility model can be raised the efficiency 5～7 times than existing screw type external clamp, makes mouth of pipe docking accurately evenly, quick, convenient and flexible operation.

Claims

1, light hydraulic pipeline external clamp comprises formations such as annular template, manual hydraulic oil pump, hydraulic jack, it is characterized in that: the ring-like template 2 of standard round that mouthpart is split (two lobes) by twice connects into ring type structure mold 1 with balance plate 3; Balance plate 3 is connected with 2 while of bipassage ring pattern plate across, and interior ring bottom is concordant, is equipped with opening slot 5 in the ring-like Die and mould plate 2; The opening of pivot pin 4 connecting ring pattern plates 2 one ends; The other end opening both sides of ring-like template 2 are connecting pin axillare 6 respectively, and on a side bearing pin plate 6 fixed hydraulic oil cylinder 8; Hydraulic jack 8 is connected by plate hole 7 with bearing pin plate 6; The piston shaft of hydraulic jack 8 can overlap with the bearing pin plate 6 of opposite side.Manual hydraulic oil pump 11 connects into path by oil pipe 9 and rapid pipe joint 10 with hydraulic jack 8.Set upright accent bar jack 12 in the setting of balance plate 3 intermediate portions.

2, light hydraulic pipeline external clamp according to claim 1 is characterized in that: balance plate 3 is provided with 3--12, and its two ends are wide respectively to go out twice annular template 2 outside 30--70 millimeters; Opening slot 5 on the annular template is 6--10.