CN2816555Y

CN2816555Y - Hafu-type pipeline quick-repairing joint

Info

Publication number: CN2816555Y
Application number: CN 200520074968
Authority: CN
Inventors: 解心廉
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-08-30
Filing date: 2005-08-30
Publication date: 2006-09-13
Anticipated expiration: 2015-08-30

Abstract

The utility model relates to a hafu type pipeline first-aid repair joint, which comprises a pair of casings which are formed by that a hollow cylinder is split through the shaft line and the cross section of the casing is semicircular. A flange edge which is connected with the edge of the split line position and extended out of a fixed connecting bolt is also arranged on the casing. Both ends of the inner cavity of the semicircular casing are provided with a half annular groove. A linear groove is arranged on the inner sides of both sides of the flange edge in the axial direction. The half annular grooves are communicated with the linear grooves. Half annular sealing strips are arranged and embedded in the grooves arranged on both ends of the inner cavity. The end parts of the half annular sealing strips are provided with sealing surfaces. Linear sealing strips are embedded in the linear grooves arranged on both sides in the axial direction. The casings with semicircular cross sections are connected by screw bolts into a cylindrical casing which seals and wraps pipelines. The end parts of a half annular sealing ring are provided with a protuberant boss. Reinforced connecting ribs (8) are arranged on the casings and the flange edges. The utility model has the advantages of reasonable improvement of critical components, simple structure, light weight of the casings, raw material saving, cost saving, no effect on strength, convenient construction and good sealing performance.

Description

A kind of Hough formula pipe first-aid joint

Technical field

The utility model relates to and a kind ofly is used for pipe leakage or damaged use device with repairing, particularly is that Hough formula pipe first-aid saves.

Background technique

The most often run into pipelines such as running water pipe or intermediate water pipeline, gas pipe (fuel gas transportation pipeline), oil feed pipe in production and the life; also comprise in the industries such as chemical industry, oil, weaving, fiber environmental protection in a large number even comprise steam line etc., these pipelines all may produce seepage or breakage.Especially water inlet is easier so, and above-mentioned reason is mostly owing to urban construction and development, and the various stress that building and road construction produce are applied on the pipeline.Also or former thereby seepage or breakage because of other, the rush repair that breaks maybe need be wrapped up the situation of connection and need use the Hough joint that breakage spot is carried out sealed envelope, and this scheme is fabulous scheme when not needing to change pipeline.

Provide a kind of Hough flexible joint as CN91107113, be suitable for the flexible joint of pipe first-aid, installation, comprise nuts and bolt, the Hough housing of splitting at a pair of hollow cylinder by Bolt Connection, be embedded in the seal ring of splitting that has the anti-baffle plate that expands in its inner chamber two ends groove, and be embedded in it and be arranged on Stamping Steel Ribbon in the grooves on two sides vertically, by the aperture of the housing of Bolt Connection greater than footpath outside the pipeline.Two ends are fluted, and both sides vertically are provided with convex platform and groove, and groove comes the crush seal bar with placing seal ring, Stamping Steel Ribbon.The outside side of seal ring is provided with the groove that connects the anti-baffle plate that expands, and another has the vacancy step that holds the anti-baffle plate extension that expands.

But its structure has redundancy, comprises that the sealing configuration that has improved Hough joint to be set up afterwards still remains to be improved, and sealing configuration is the rubber pad that is embedded in the groove, and being embedded in rubber pad two end part in the groove, to be the tip of the tongue shape be not desirable sealing configuration.In addition, the design by the Hough housing of Bolt Connection that hollow cylinder is split still has unreasonable part, and its Heavy Weight also has improvements in the consideration of easy construction.

Summary of the invention

It is simpler that the purpose of this utility model provides a kind of structure, alleviates the weight of Hough parcel housing, saves raw material and the cost of making housing, and it is convenient to construct, the Hough joint that the pipe first-aid of better tightness is used.

The purpose of this utility model realizes like this: a kind of Hough formula pipe first-aid joint, comprise and a pair ofly cross that axis is cut open and the cross section is the housing of semicircle by hollow cylinder, also establish on the housing and be connected in the flange edge that edge, hatching line position stretches out the bolt that is fixedly connected, semi circular shells intracoelomic cavity two ends are provided with semi-circular groove, be equipped with straight-line groove in the inboard of flange edge both sides vertically, semi-circular groove is communicated with straight-line groove, being provided with semi-circular Stamping Steel Ribbon is embedded in the groove of inner chamber two ends, and the line seal bar is embedded in vertically the both sides straight-line groove, the cylindrical outer cover that is linked to be the sealed envelope pipeline between the housing that a pair of described cross section is a semicircle by bolt, the end of semi-ring seal ring is equipped with the boss of projection, and the two ends of semi-circular Stamping Steel Ribbon are equipped with the rubber strip that is embedded in the straight-line groove connected vertically.

The aperture of the cylinder that housing forms is greater than footpath outside the pipeline and since be two housings parcels then two semi-circular Stamping Steel Ribbons in groove, form an annulus.When using the repairing joint, it is in the middle of the Hough joint that seepage or the damaged pipeline position that needs repairing are wrapped in pair of shells, place Stamping Steel Ribbon, be fixed by bolts to a plurality of screwhole positions of flange edge again, the cylindrical outer cover that is linked to be the sealed envelope pipeline can seepage, can be integrated with pipeline after the utility model device installs, life-span more is better than pipeline, guarantees long-term use.

Characteristics of the present utility model are: it is more reasonable that critical component improves, and structure is simpler, has alleviated the weight of housing, has saved raw material and cost, and intensity is unaffected, and it is convenient to construct, better tightness.

Description of drawings

Fig. 1 is the sectional view of the utility model housing

Fig. 2 is the surface structure schematic representation of the utility model housing, and left half figure is an internal structure,

Fig. 3 is the B-B sectional view of Fig. 2

Fig. 4 is the plan view of the semi-circular Stamping Steel Ribbon of the utility model

Fig. 5 is the A-A sectional view of Fig. 4

Fig. 6 is the left side view of Fig. 4

Hough housing 1, housing upper flange limit 2, semi-circular groove 3, straight-line groove 4, bolt hole 4, semi-ring seal ring 5, semi-ring seal ring end boss 5-1, the two ends of semi-circular Stamping Steel Ribbon vertically connect rubber strip 6, and the recess of semi-ring seal ring thickens bar 7, and stiffening rib 8 on the housing, housing thickening layer 9, discharge orifice 10.

Embodiment

By the following examples and in conjunction with the accompanying drawings the utility model is done to describe further:

As shown in Figure 1, the cross section perpendicular to conduit axis of housing is actually the Ω shape, the dominant shape shape is that hollow cylinder is crossed that axis is cut open and the cross section is the housing of semicircle, also establish the flange edge that the edge that is connected in the hatching line position stretches out the bolt that is fixedly connected on the housing, housing inner chamber two ends, semi-circular section are provided with semi-circular groove or groove, be equipped with straight-line groove in the inboard of flange edge both sides vertically, semi-circular groove is communicated with straight-line groove, other is provided with semi-circular Stamping Steel Ribbon and is embedded in the groove of inner chamber two ends, the end of semi-ring seal ring is equipped with the boss 5 of projection, its cross section is trapezoidal, and the end is a sealing surface, and two semi-rings constitute the sealing surface of parcel whole pipe circumference.The line seal bar is embedded in vertically the both sides straight-line groove, because of the two ends of semi-circular Stamping Steel Ribbon are equipped with the rubber strip that is embedded in the straight-line groove connected vertically, especially this rubber strip becomes a wedge shape, the line seal bar also is opposite wedge shape during with its overlap joint, can constitute the sealing surface of better cylinder sidepiece.Rubber strip wedge shape inclined-plane and seal face in the same way or vertical, when described rubber strip becomes this wedge shape, when placing seal groove can with the line seal bar be overlap joint up and down wedge shape or about the wedge shape of overlap joint.Boss 5 is compression revisal pieces, can guarantee the reliable of end seal face when housing compresses.

For guaranteeing sealing, the cross section of Stamping Steel Ribbon is slightly larger than the sectional area of groove.The length of elongated slot Stamping Steel Ribbon should be greater than the length of run after the compression.

Strict the saying of semi-ring seal ring is not semicircle, thickens bar 7 but be provided with at its recess.And one side has the shape of threads profile of tooth.

Housing upper edge axis flange edge is provided with strengthened connection bar 8 in addition, also is provided with thickening bar 9 on the housing, and screw is in thickening bar position, and such structure collectivity has been saved material.Bolt hole 4 on limit of flange is Chinese People's Anti-Japanese Military and Political College holes of pre-buried countersunk bolts head, like this when fixing operation, as long as can operate set screw nut to wrench with single.When this joint is used for pipe first-aid, need not add filling section again.Shock resistance is good, economy and durability, and the two ends of joint, both sides just realize sealing fully.Do not bear seal action owing to housing two Houghs after closing up.And be spaced under the Stamping Steel Ribbon effect, so housing needs fine finishing to manufacture hardly, greatly reduced cost.Improved the feasibility of promoting.

The utility model removes and makes above-mentioned straight cylinder type, can also make pipe coupling type, three-way type, the four-way type, and curved head types etc. are to satisfy the needs that the pipeline different parts connects maintenance.Internal aperture is greater than the external diameter of pipeline or joint.Housing does not directly contact with pipeline, purpose be to two-phase dislocation or not straight pipeline also can carry out reliable coupling housing and be provided with groove be embedded in therebetween so that will seal admittedly.

The utility model structure can adopt outside metal manufacturing or the casting, also can adopt cement or plastic or other material manufacturing.

Claims

1, a kind of Hough formula pipe first-aid joint, comprise and a pair ofly cross that axis is cut open and the cross section is the housing of semicircle by hollow cylinder, also establish on the housing and be connected in the flange edge that edge, hatching line position stretches out the bolt that is fixedly connected, semi circular shells intracoelomic cavity two ends are provided with semi-circular groove, be equipped with straight-line groove in the inboard of flange edge both sides vertically, semi-circular groove is communicated with straight-line groove, being provided with semi-circular Stamping Steel Ribbon is embedded in the groove of inner chamber two ends, semi-circular Stamping Steel Ribbon end is a sealing surface, and the line seal bar is embedded in vertically the both sides straight-line groove, the cylindrical outer cover that is linked to be the sealed envelope pipeline between the housing that a pair of described cross section is a semicircle by bolt, it is characterized in that the end of semi-ring seal ring is equipped with the boss of projection, be provided with strengthened connection bar (8) with flange edge on the housing.

2, by the described Hough formula of claim 1 pipe first-aid joint, it is characterized in that housing is provided with thickening bar (9), bolt hole is in thickening bar position, on one side bolt hole (4) be the Chinese People's Anti-Japanese Military and Political College hole of pre-buried countersunk bolts head.

3, by the described Hough formula of claim 1 pipe first-aid joint, it is characterized in that the end of semi-ring seal ring is equipped with the boss of projection (5), its cross section is trapezoidal.

4,, it is characterized in that the two ends of semi-circular Stamping Steel Ribbon are equipped with the rubber strip that is embedded in the straight-line groove connected vertically by the described Hough formula of claim 1 pipe first-aid joint.

5, by the described Hough formula of claim 4 pipe first-aid joint, it is characterized in that the rubber strip that is embedded in the straight-line groove that links to each other with semi-circular Stamping Steel Ribbon is a wedge shape, the inclined-plane of rubber strip wedge shape and semi-circular Stamping Steel Ribbon seal face are in the same way or vertical.

6,, it is characterized in that being provided with and thicken bar (7), and one side is provided with the shape of threads profile of tooth at semi-ring seal ring recess by the described Hough formula of claim 4 pipe first-aid joint.