CN1181277C

CN1181277C - Cast pipe self anchored interface

Info

Publication number: CN1181277C
Application number: CNB021544913A
Authority: CN
Inventors: 范英俊; 杨彬; 阎炳宽; 王金秀
Original assignee: Xinxing Ductile Iron Pipes Co Ltd
Current assignee: Xinxing Ductile Iron Pipes Co Ltd
Priority date: 2002-12-18
Filing date: 2002-12-18
Publication date: 2004-12-22
Anticipated expiration: 2022-12-18
Also published as: CN1442624A

Abstract

The present invention relates to a TJ type cast pipe self anchored interface, and a seal ring is arranged in an inner groove of a bearing port of one cast pipe. An inserted port of the other cast pipe is inserted in the bearing port of the first cast pipe, and the seal ring is tightly extruded between the bearing port and the inserted port of the cast pipes. An outer cylinder surface abutting on the connecting position of the bearing port and the inserted port of the cast pipes is sheathed with hoops, the hoops are uniformly distributed with screw holes for locking the inserted port and the bearing port in the radial direction, the screw hole for locking the inserted port approaches the outer cylinder surface of the inserted port and is a groove, and a pressure ring can be arranged in the groove in the way of being capable of sliding. The inner part of the screw hole for locking the inserted port is screwed with a pressure bolt, the inner end of the pressure bolt is pressed on the pressure ring, the pressure bolt is tightly screwed, the pressure ring is tightly pressed on the outer cylinder surface of the inserted port, and the hoops and the inserted port are fixed into a whole. The inner part of the screw hole for locking the bearing port is screwed with a lock bolt, and the two connected cast pipes are fixed together by the hoops. The TJ type cast pipe self anchored interface has the advantages of simple structure, easy process and manufacture, capability for achieving multiple pipe line integral hanging process, convenient construction, no slip and no leakage.

Description

Cast tube self-anchored type interface

(1), technical field

The invention belongs to a kind of TJ type cast tube and connect into the interface structure of pipeline.

(2), background technique

At present, when connecting into pipeline with the TJ cast tube, put into seal ring in the bellmouth inner groovy of cast tube, the socket of another root cast tube inserts in the bellmouth of described cast tube, seal ring tightly is squeezed between the bellmouth and socket of cast tube, realizes sealing and anti-slip with this.But cast tube can only be constructed when being linked and packed one by one, and efficient is low, and the pipe laying ditch width that need dig is big, wastes time and energy, and is long in time limit.Owing to construct in the pipe laying ditch, work is inconvenient, environment is poor.The pipeline bearing capacity of completing is poor, and anti-radial deformation is poor.Raise or reduce and when cast tube length is changed, occur owing to the socket slippage of cast tube is leaked easily in the material temperature of carrying.This in pipeline river crossing, lake or the construction of crossing over mountain after mountain slippage repeatedly takes place leaks and do over again, increase greatly and come cost, prolonged the duration.

(3), summary of the invention

In order to overcome the shortcoming of prior art, the invention provides a kind of TJ type cast tube self-anchored type interface, it is not only simple in structure, easy construction, and can realize many pipeline integral hoistings, the efficiency of construction height can use in all case.

The present invention solves the technological scheme that its technical problem takes: put into seal ring in the bellmouth inner groovy of cast tube, the socket of another root cast tube inserts in the bellmouth of described cast tube, seal ring tightly is squeezed between the bellmouth and socket of cast tube, be with clip on the external cylindrical surface near described cast tube bellmouth and socket joint, clip radial equipartition locking socket tapped hole and locking bellmouth tapped hole, locking socket tapped hole is a groove near the socket external cylindrical surface, pressure ring is housed in the groove slidably, the tight bolt of locking socket tapped hole inward turning combined pressure, the inner of hold-down bolt is pressed on the pressure ring, screw hold-down bolt, pressure ring presses the socket external cylindrical surface, clip and socket are fixed as one, be combined with lock bolt in the described locking bellmouth tapped hole, screw lock bolt, the lock bolt card is pressed on the outer of cast tube bellmouth, clip and bellmouth are fixed together, and two cast tubes that will be connected by clip are fixed together.

Owing to adopt clip self-anchored type structure, so simple in structure, easily manufacturing can realize many pipeline integral hoistings, easy construction.The pipe laying ditch width that need dig is slightly larger than the cast tube diameter and gets final product, and can shorten auxiliary time greatly.Owing to construct outside the pipe laying ditch, environment is good, easy construction.The pipeline bearing capacity of completing is big, can prevent radial deformation.Raise or reduce and when cast tube length is changed, can not occur in the material temperature of carrying owing to the socket slippage of cast tube is leaked.But extensive use and pipeline river crossing, lake or the abominable occasion of environment such as cross over mountain after mountain.

(4), description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is a plan view of the present invention;

Fig. 2 is the A-A sectional view among Fig. 1 of the present invention.

(5), embodiment

Put into seal ring 3 in bellmouth 1 inner groovy 2 of cast tube, the socket 10 of another root cast tube inserts in the bellmouth 1 of described cast tube, seal ring 3 tightly is squeezed between the bellmouth 1 and socket 10 of cast tube, as shown in Figure 1, 2.Be with clip 7 on the external cylindrical surface near described cast tube bellmouth 1 and socket 10 joints, the tapped hole of clip 7 radial equipartitions locking socket 10, the tapped hole of radial equipartition locking bellmouth 1 on the convex shoulder 4 of clip 7.The tapped hole of locking socket 10 is a groove near socket 10 external cylindrical surfaces, and pressure ring 8 is housed in the groove slidably, the tight bolt 6 of tapped hole inward turning combined pressure of locking socket 10, and the inner of hold-down bolt 6 is pressed on the pressure ring 8.Screw hold-down bolt 6, pressure ring 8 presses socket 10 external cylindrical surfaces, and clip 7 and socket 10 are fixed as one.Be combined with lock bolt 5 in the tapped hole of described locking bellmouth 1, screw lock bolt 5, lock bolt 5 cards are pressed on the outer of cast tube bellmouth 1, and clip 7 and bellmouth 1 are fixed together, and two cast tubes that will be connected by clip 7 are fixed together.

In order to increase the frictional force of pressure ring 8 and socket 10 external cylindrical surfaces, pressure ring 8 is a zigzag fashion with the cross section of socket 10 external cylindrical surface contacting points.For pressure ring 8 is easily assembled, the uniform pressure ring 8 usefulness rubber 9 that keep at a certain distance away are connected, and its objective is both to have guaranteed easy assembling, can make each pressure ring 8 energy independent deformation again, thereby socket 10 is compressed.The tight bolt 6 of tapped hole inward turning combined pressure of described locking socket 10, the inner of hold-down bolt 6 is pressed on the pressure ring 8.Pressure ring 8 of described hold-down bolt 6 per two roof pressures, and be pressed in the two ends of a pressure ring 8.

Claims

1, a kind of TJ type cast tube self-anchored type interface, in bellmouth (1) inner groovy (2) of cast tube, put into seal ring (3), the socket of another root cast tube (10) inserts in the bellmouth (1) of described cast tube, seal ring (3) tightly is squeezed between the bellmouth (1) and socket (10) of cast tube, it is characterized in that: be with clip (7) on the external cylindrical surface near described cast tube bellmouth (1) and socket (10) joint, the tapped hole of the tapped hole of clip (7) radial equipartition locking socket (10) and locking bellmouth (1), the tapped hole of locking socket (10) is a groove near socket (10) external cylindrical surface, pressure ring (8) is housed in the groove slidably, the tight bolt of tapped hole inward turning combined pressure (6) of locking socket (10), the inner of hold-down bolt (6) is pressed on the pressure ring (8), screw hold-down bolt (6), pressure ring (8) presses the socket external cylindrical surface, clip (7) and socket (10) are fixed as one, be combined with lock bolt (5) in the tapped hole of described locking bellmouth (1), screw lock bolt (5), lock bolt (5) card is pressed on the outer of cast tube bellmouth (1), clip (7) and bellmouth (1) are fixed together, and two cast tubes that will be connected by clip (7) are fixed together.

2, self-anchored type interface according to claim 1 is characterized in that: described pressure ring (8) is a zigzag fashion with the cross section of socket (10) external cylindrical surface contacting point.

3, self-anchored type interface according to claim 1 is characterized in that: two hold-down bolts (6) pressure rings of roof pressure (8), and be pressed in the two ends of a pressure ring (8).

4, according to claim 1,2 or 3 described self-anchored type interfaces, it is characterized in that: the described uniform briquetting (8) that keeps at a certain distance away is connected with rubber (9).