CN112431993A

CN112431993A - Half joint

Info

Publication number: CN112431993A
Application number: CN202011348529.4A
Authority: CN
Inventors: 焦祥静; 刘洁
Original assignee: ANHUI TONGFA EQUIPMENT CO LTD
Current assignee: ANHUI TONGFA EQUIPMENT CO LTD
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-03-02

Abstract

The invention provides a half joint, wherein two half parts of the half joint are enclosed to form a half pipe joint, straight grooves and arc-shaped grooves are circumferentially arranged at the axial side edges and the end parts of the half joint and are used for embedding sealing part half bodies, and convex ribs are arranged on the inner groove walls of the two grooves and/or the parts of the sealing part half bodies corresponding to the inner groove walls. Through setting up the gomphosis dynamics of protruding muscle reinforcing seal spare halfbody and recess in the above-mentioned scheme, prevent that the seal spare halfbody from misplacing or even droing under water impact.

Description

Half joint

Technical Field

The invention relates to a half type quick joint for a pipeline.

Background

The town water supply and drainage pipe network system usually adopts cement, cast iron or galvanized steel pipe, because geological conditions changes or body self defect, the pipeline rupture accident happens occasionally, for in time recovering the pipeline unobstructed, often adopt the quick connector of half a pipe-shaped section among the prior art to connect, adopt two half tubular half formula quick connectors when salvageing promptly, contain the damaged portion C of pipeline A, B in the pipe cavity is enclosed into to half a pipe-shaped section, utilize the bolt to tighten up the semicircle composition surface of half a pipe-shaped section 1, rubber seal 2 folds and seals damaged portion C. The method is widely used for rush-repair of pipelines due to the fact that the number of rush-repair workers is small, installation time is short, speed is high, and the method is simple and easy to use, and the method does not need to excavate earthwork in a large range and replace a new pipe to become a common spare part of a piping system enclosure part and a unit.

The commonly used half joint is generally composed of a metal shell and a rubber ring, when the emergency repair with water pressure is carried out, the rubber ring is easy to displace or misplace under the impact of the water pressure, and even if the sealing effect of the half joint is poor after the half joint is installed, the water seepage and water leakage phenomena still occur.

Disclosure of Invention

The invention aims to provide a half joint which can prevent a rubber ring from being impacted and dislocated by high-pressure water flow during rush repair with hydraulic pressure.

In order to achieve the purpose, the invention adopts the following technical scheme: the half-half bodies of the half-sections are enclosed to form a half-pipe joint, straight grooves and arc-shaped grooves are circumferentially arranged at the axial side edges and the end parts of the half-bodies of the half-sections.

Through setting up the gomphosis dynamics of protruding muscle reinforcing seal spare halfbody and recess in the above-mentioned scheme, prevent that the seal spare halfbody from misplacing or even droing under water impact.

Drawings

FIGS. 1, 2, 7 and 8 are schematic structural views of the present invention;

FIGS. 3 and 5 are schematic views of the half structures of the present invention;

FIG. 4 is an end elevational view of FIG. 3;

fig. 6 is a cross-sectional view of the present invention.

Detailed Description

A half-half pipe joint is characterized in that two half-halves 10 of the half-half pipe joint are enclosed to form a half-pipe joint, straight grooves 11 and arc-shaped grooves 12 are circumferentially arranged at the axial side edges and the end parts of the half-halves 10 of the half pipe joint and are used for embedding sealing element half bodies 20, convex ribs 21 are arranged on the inner groove walls of the two grooves and/or the parts of the sealing element half bodies 20 corresponding to the inner groove walls, and the convex ribs 21 and the sealing element half bodies 20 and/or the inner groove walls of the two grooves form interference fit or embedding fit.

Through the gomphosis dynamics that sets up protruding muscle 21 and strengthen sealing member halfbody 20 and recess in the above-mentioned scheme, prevent that sealing member halfbody 20 misplaces even drops under water impact, can set up the rib groove at the corresponding position of protruding muscle 21 simultaneously and constitute and inlay the cooperation with protruding muscle 21, avoided like this to bond sealing member halfbody 20 with glue, environmental protection more can be applicable to drinking water pipeline's repair.

In the first embodiment, as shown in fig. 2, the ribs 21 are provided on the seal half 20 at the positions corresponding to the side walls of the groove. The sealing element half body 20 is a rubber element, the structure and the arrangement of the convex ribs 21 are convenient to change, the original half joint die can be reserved, the recasting is not needed, and the sealing element half body 20 can be directly replaced.

In the second embodiment, as shown in fig. 7, the ribs 21 are disposed on the inner side wall of the straight groove 11 or the arc-shaped groove 12. This allows for direct casting for ease of fitting to existing seal halves 20.

The length direction of the convex rib 21 points to the groove bottom of the straight groove 11 or the arc-shaped groove 12. . Therefore, the extrusion convex rib 21 is convenient to install, the extrusion force between the convex rib 21 and the side wall of the groove is perpendicular to the binding surface of the half-half sealing element 20, and the half sealing element is prevented from falling off.

The ribs 21 are arranged on the long straight section sealing piece 22 in a linear array along the length direction of the long straight section sealing piece, and the ribs 21 are arranged on the arc section sealing piece 23 at intervals along the circumferential direction of the arc section sealing piece. In this way, the bead 21 is disposed at each position of the seal half body 20 to prevent the seal half body from being partially removed.

The long straight section sealing element 22 or the straight groove 11 is provided with a positioning convex block 221 on one side far away from the sealing surface, the straight groove 11 or the long straight sealing element section is provided with a positioning groove 111 corresponding to the positioning convex block 221, and the positioning groove 111 and the positioning convex block 221 form an embedded fit. The axial displacement of the seal half body 20 due to the pressing force of the rib 21 during installation is prevented.

The positioning protrusions 221 are respectively disposed at both ends and the middle portion of the long straight section sealing member 22. The positioning structure with multi-section arrangement effectively prevents the local deformation and dislocation of the sealing element half body 20 caused by the extrusion force of the convex ribs 21.

The sealing surface of the long straight section sealing element 22 protrudes out of the notch of the straight groove 11, and the inner side of the long straight section sealing element 22 extends inwards to form a step structure 221 which is attached to the inner edge of the straight groove 11. Sealing member halfbody 20 inwards extends the width that increases the plane seal, and extension position is when the sealing member compression, before the rubber spare compression in the seal groove, step structure 221 carries out the compression one earlier, and the sealing member thickness of step portion is less than the sealing member in the seal groove, so in earlier stage of the compression, atress in the foundry goods groove flange that extends the sealing member lower part, can make this extension sealing member compress fast and target in place, whole improvement both sides's plane sealing performance.

The two ends of the arc-shaped groove 12 are in a dovetail groove 121 structure with a small notch and a large groove bottom. Further preventing the seal half body 20 from coming off.

The two ends of the inner diameter of the arc-shaped section sealing piece 23 protrude out of the binding surface of the half. Because this position is the junction of long straight section sealing member 22 and arc section sealing member 23, and this rubber thickness is the biggest, consequently the probably compression sealing force of this department is not enough after other positions accomplish compression sealing, consequently sets up wedge structure at this position and has formed wedge compensation compression structure, and the side of wedge structure can be triangle-shaped or trapezium structure, avoids hough festival both ends to leak because of the not enough local that causes of compression.

The inner arc surface of the arc section sealing element 23 is provided with an isosceles tooth-shaped seal or a right-angle tooth-shaped seal with a right-angle side facing the repairing position. Forming an anti-slip sealing structure.

Claims

1. The utility model provides a half, two half (10) enclose to close and constitute half pipe coupling, and the straight recess (11) and the arc recess (12) that the axial side and the tip circumference of half (10) of half are used for imbedding sealing member halfbody (20), its characterized in that: and convex ribs (21) are arranged on the inner groove walls of the two grooves and/or the parts of the sealing element half bodies (20) corresponding to the inner groove walls, and the convex ribs (21) and the sealing element half bodies (20) and/or the inner groove walls of the two grooves form interference fit or embedded fit.

2. The huff-section of claim 1, wherein: the convex ribs (21) are arranged on the parts, corresponding to the side walls of the grooves, of the sealing element half bodies (20).

3. The huff-section of claim 1, wherein: the convex ribs (21) are arranged on the inner side wall of the straight groove (11) or the arc-shaped groove (12).

4. The huff-section of claim 1, wherein: the length direction of the convex rib (21) points to the bottom of the straight groove (11) or the arc-shaped groove (12).

5. The huff-section of claim 1, wherein: the convex ribs (21) are arranged on the long straight section sealing piece (22) in a linear array along the length direction of the long straight section sealing piece, and the convex ribs (21) are evenly arranged on the arc section sealing piece (23) at intervals along the circumferential direction of the arc section sealing piece.

6. The huff-section of claim 1, wherein: and a positioning convex block (221) is arranged on one side, far away from the sealing surface, of the long straight section sealing element (22) or the straight groove (11), a positioning groove (111) is arranged on the straight groove (11) or the long straight sealing element section corresponding to the positioning convex block (221), and the positioning groove (111) and the positioning convex block (221) form an embedded fit.

7. The huff-section of claim 1, wherein: the positioning convex blocks (221) are respectively arranged at the two ends and the middle part of the long straight section sealing piece (22).

8. The huff-section of claim 1, wherein: the sealing surface of the long straight section sealing element (22) protrudes out of the notch of the straight groove (11), and the inner side of the long straight section sealing element (22) extends inwards to form a step structure (221) attached to the inner edge of the straight groove (11).

9. The huff-section of claim 1, wherein: the two ends of the arc-shaped groove (12) are in dovetail groove (121) structures with small notches and large groove bottoms.

10. The huff-section of claim 5, wherein: the two ends of the inner diameter of the arc-shaped section sealing element (23) are protruded out of the binding surface of the half.

11. The huff-section of claim 1, wherein: the inner arc surface of the arc section sealing element (23) is provided with an isosceles tooth-shaped seal or a right-angle tooth-shaped seal with a right-angle side facing the repairing position.