CN2381868Y

CN2381868Y - Cup joint for pipes

Info

Publication number: CN2381868Y
Application number: CN 99237950
Authority: CN
Inventors: 邵迎春
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-18
Filing date: 1999-06-18
Publication date: 2000-06-07
Anticipated expiration: 2009-06-18

Abstract

The utility model relates to a half sleeve buckle type pipe joint, which relates to the field of pipe joint, and the utility model can solve the problems of difficult disassembly and assembly, low efficiency and hard electric tool adopting. The utility model is characterized in that the butting surfaces of a connection tube 1 and a pipe joint body 3 are respectively provided with the same flanges 11, 31, a slope of the flange 11 is provided with an annular circular arc slot, and a sealing member 4 is arranged in the pipe joint body 3. A pipe joint connecting sleeve 2 is provided with slots of which the shape is in accordance with the butting shape of the flanges 11, 31, one side of the connecting sleeve 2 is provided with a hole which is corresponding to the circular arc slot, and a steel ball 5, a spring 6 and an end plug 7 are arranged in the hole. The connection tube 1 is abutted with a flange end surface of the pipe joint body 3, and the pipe joint connecting sleeve 2 can be buckled. The utility model is suitable for the connection of middle and high voltage hydraulic pressure and pneumatic pipelines and is also suitable for the connection of other pipelines.

Description

Partly overlap buckled pipe joint

The utility model relates to the pipeline connection area.

Oil pipe much adopts Welded fitting with being connected of oil pipe in hydraulic system at present, with reference to Fig. 5, promptly the termination of oil pipe is connected last pipe joint adapter (1) with the method for welding earlier, another oil pipe end welds a union body (3), pipe joint is taken on (1) and union body (3) mating face seal ring (4) is housed, with the nut (20) of living two oil pipes are linked together at last, nut (20) produces axial force when screwing owing to live, make the Transverse plane compresses seal of joint, reach and be tightly connected, because good seal performance, in hydraulic pipe line, generally adopted, but in installing and keeping in repair, also found following deficiency: 1: when installing at the scene, be difficult to the axis of two steel pipes of butt joint is placed coincidence, the radially degrees of freedom of nut of living simultaneously is very little, and the rigidity of steel pipe own is very big again, recognizes button and revolves nut and occur other strength often to recognize button difficult; 2: because hydraulic plumbing system discharging is intensive, need vertical operation with pipeline during the used wrench operated of dismounting, working space is little, and task difficulty is big, owing to can't adopt electric wrench, intensity of workers is big; 3: be threaded owing to adopt between pipe, machine-processed screw thread has improved the pipe joint cost, and careless slightly in transportation process, thread is easy damaged also.

The purpose of this utility model be to design a kind of simple in structure, low cost of manufacture, butt joint closely, be convenient to dismounting and use modern electric tool dismounting, can raise labour efficiency, what alleviate intensity of workers partly overlaps buckled pipe joint.

The technological scheme that realizes the utility model purpose is: an end of the body that pipe joint is taken over and the body of union body respectively is shaped on same flange radially, one side of flange with the body end face at grade and with the body axis normal, the thickness that the another side of flange makes flange from the body cylindrical to the flanged lip attenuation, the flanged end of union body is shaped on seal groove along inner hole wall, the pipe joint connecting sleeve is made up of two halves ring set up and down, radially takes over flanged end face and union body flanged end face with pipe joint and docks the groove that back flange combined shaped matches to putting to be shaped on from its inner ring surface; After adorning Sealing in the seal groove on the union body, second hitch of going up of pipe joint connecting sleeve is contained on the flange after pipe joint is taken over flanged pin end face and the butt joint of union body flanged end face, by the retention mechanism of first ring set of pipe joint connecting sleeve and second ring set first ring set and second ring set of pipe joint connecting sleeve is tightened to one with pipe joint adapter and union body.

Concrete structure of the present utility model is provided by the following examples and accompanying drawing thereof.

Fig. 1 be the utility model proposes partly overlap buckled pipe joint structure figure

Fig. 2 is that hinge, the crank-connecting rod of semi-ring cover connect the retention mechanism schematic representation to the utility model pipe joint connecting sleeve up and down

Fig. 3 is the side view of Fig. 2

Fig. 4 is the utility model pipe joint connecting sleeve hinge, bolton structural scheme of mechanism of semi-ring cover up and down

Fig. 5 is the screw thread Welded fitting schematic representation of prior art

Describe in detail according to concrete pipe joint structure details and the use condition that the utility model proposes below in conjunction with accompanying drawing.

With reference to Fig. 1, one end of the body of pipe joint adapter (1) and the body of union body (3) respectively is shaped on same flange (11) radially, (31), one side of flange with the body end face at grade and with the body axis normal, the another side is to make the thickness of flange from the inclined-plane of tube body wall to the flanged lip attenuation, the flanged end of union body (3) is shaped on seal groove along inner hole wall, be shaped on an annular arc groove on the flange inclined-plane of pipe joint adapter (1), pipe joint connecting sleeve (2) is made up of first ring set (21) and following semi-ring (22), radially dock the groove that the back isosceles trapezoid flange of forming matches from its inner ring surface to putting to be shaped on pipe joint adapter (1) flanged end face and the flanged end face of union body (3), the Sealing (4) of then packing in the seal groove in the union body (3), first ring set (21) of pipe joint connecting sleeve (2) and second ring set (22) spiral-lock are taken on the isosceles trapezoid flange of (1) flanged end face and the flanged end face butt joint of union body (3) back composition at pipe joint, side at pipe joint connecting sleeve (2), be parallel to this axis and be shaped on uniform hole, this hole is corresponding to the annular arc groove on pipe joint adapter (1) flange inclined-plane, pack in the hole with flange on the steel ball (5) that adapts of arc groove, spring (6), plug wire (7) is with first ring set (21) of pipe joint connecting sleeve (2) with second ring set (22) takes over (1) with pipe joint and union body (3) is tightened to one.

With reference to Fig. 2, Fig. 3, first ring set (21) of pipe joint connecting sleeve (2) and the retention mechanism of second ring set (22) they are to make hinge on first ring set (21) and second ring set (22)---crank-connecting rod is from snap close, promptly on first ring set (21) of pipe joint connecting sleeve (2) and second ring set (22) two obverse corresponding surfaces, make hinge and be connected (8), another obverse second ring set (22) is gone up load bar (9), crank on first ring set (10), crank (10) is connected by bearing pin with connecting rod (9).

With reference to Fig. 4, two corresponding surfaces that first ring set (21) of pipe joint connecting sleeve (2) and the retention mechanism of second ring set (22) also can adopt first ring set (21) of pipe joint connecting sleeve (2) and second ring set (22) are extension radially, one corresponding surface is made hinge and is connected (8), another obverse epitaxial part is respectively made an ear, the axis normal of the axis of coaxial aperture and pipe joint connecting sleeve (2) is equipped with spiral on the ear in the hole; Or two halves ring set corresponding surface extension radially, all be shaped on ear, be shaped on coaxial aperture on the ear, dress bolt in the hole.

When partly overlapping buckled pipe joint and in the pipeline connection, using, the pipe joint of should respectively being burn-on in the pipeline butt end of butt joint is earlier taken over (1), the not flanged end of union body (3), the flanged pin end face of pipe joint being taken over behind the Sealing (4) (1) pack on the seal groove in union body (3) into after the flanged end face of union body (3) docks, on the flange of butt joint, load onto second ring set (22) and first ring set (21) of pipe joint connecting sleeve (2), retention mechanism according to the pipe joint connecting sleeve of selecting for use, pipe joint is taken over flanged pin end face and the butt joint of union body flanged end face, compressive seal (4) makes pipe joint adapter (1) and union body (3) be tightened to one by pipe joint connecting sleeve (2).

Advantage of the present utility model: 1: simple in structure, easily processing and manufacturing, production cost is low; 2: because pipe joint is taken over and thin, the flange bottom width of the involutory rear formation flange outer rim of flange of union body docking, up and down half ring set of pipe joint adapter sleeve easily fastens, behind the locking connecting fastening mechanism, make tube connector produce axial thrust, force two joint compressions adjacent to each other, compressive seal makes pipe joint be difficult for producing leakage phenomenon; 3: the axis of the bolt hole that the up and down semi-ring of fastening pipe joint adapter sleeve with bolts puts is vertical with the axis of pipe joint adapter sleeve, convenient operation during dismounting, be convenient to use electric tool, greatly improved dismounting efficient, alleviated intensity of workers.

Claims

1: take over by pipe joint, union body, Sealing, the pipe joint connecting sleeve is formed partly overlaps buckled pipe joint, it is characterized in that pipe joint takes over an end of the body of the body of (1) and union body (3) and respectively be shaped on radially same flange (11), (31), one side of flange with the body end face at grade and with the body axis normal, the thickness that the another side of flange makes flange from the body cylindrical to the flanged lip attenuation, the flanged end of union body (3) is shaped on seal groove along inner hole wall, pipe joint connecting sleeve (2) is made up of first ring set (21) and second ring set (22), radially docks the groove that back flange combined shaped matches to putting to be shaped on pipe joint adapter (1) flanged pin end face and union body (3) flanged end face from its inner ring surface; After Sealing (4) is housed in the seal groove on the union body (3), on first ring set (21) of pipe joint connecting sleeve (2) and second ring set (22) spiral-lock flange after pipe joint is taken over flanged pin end face and the butt joint of union body flanged end face, first ring set (21) of pipe joint connecting sleeve (2) and following semi-ring (22) and pipe joint adapter (1) and union body (3) are tightened to one by the retention mechanism of first ring set (21) of pipe joint connecting sleeve (2) and second ring set (22).

2: according to claim 1ly partly overlap buckled pipe joint, the retention mechanism that it is characterized in that first ring set (21) of described pipe joint connecting sleeve (2) and second ring set (22) is that pipe joint is taken on the flange inclined-plane of (1) and is shaped on an annular arc groove, side at pipe joint connecting sleeve (2), parallel to the axis and be shaped on uniform hole, the steel ball (5), spring (6), the plug wire (7) that adapt with arc groove are equipped with corresponding to the annular arc groove on pipe joint adapter (1) flange in this hole in the hole.

3: according to claim 1ly partly overlap buckled pipe joint, it is characterized in that first ring set (21) of described pipe joint connecting sleeve (2) and the retention mechanism of second ring set (22) they are hinges---crank-connecting rod is from snap close, both being shaped on hinge (8) on first ring set (21) of pipe joint connecting sleeve (2) and second ring set (22) two obverse corresponding surfaces is connected, another obverse second ring set (22) is gone up load bar (9), crank (10) on first bad cover (21), crank (10) is connected by bearing pin with connecting rod (9).

4: according to claim 1ly partly overlap buckled pipe joint, the retention mechanism that it is characterized in that first ring set (21) of described pipe joint connecting sleeve (2) and second ring set (22) is a radially extension of first ring set (21) and second ring set (22) two corresponding surfaces, one corresponding surface is made hinge and is connected, another obverse epitaxial part is respectively made an ear, the axis normal of the axis of coaxial aperture and pipe joint connecting sleeve (2) is equipped with bolt on the ear in the hole.