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Half joint

A half-section, half-type technology, applied in the direction of pipes/pipe joints/fittings, mechanical equipment, pipe components, etc., can solve problems such as rubber ring displacement or misalignment, water seepage and leakage, and poor sealing effect

Pending Publication Date: 2021-03-02
ANHUI TONGFA EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Commonly used half joints are generally composed of metal shells and rubber rings. When repairing with water pressure, the rubber rings are prone to displacement or dislocation under the impact of water pressure, so even if the half joints are installed, their sealing effect is poor , there will still be water leakage

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment one, such as figure 2 As shown, the ribs 21 are arranged on the part of the seal half 20 corresponding to the side wall of the groove. The sealing part half 20 is a rubber part, on which it is convenient to change the structure and arrange the ribs 21, and the original half-section mold can be retained without recasting, and the sealing part half 20 can be replaced directly.

Embodiment 2

[0014] Embodiment two, such as Figure 7 As shown, the ribs 21 are arranged on the inner wall of the straight groove 11 or the arc groove 12 . In this way, it can be directly cast and shaped, which is convenient for adapting to the existing half body 20 of the sealing element.

[0015] The rib length direction of the rib 21 points to the groove bottom of the straight groove 11 or the arc groove 12 . . This facilitates the installation of the extruded ribs 21 , and the extrusion force between the ribs 21 and the side walls of the groove is perpendicular to the bonding surface of the half joint, preventing the half body 20 of the sealing member from falling off.

[0016] The ribs 21 are arranged in a linear array along the length direction of the long straight section seal 22 , and the ribs 21 are arranged at even intervals along the circumference of the arc section seal 23 . In this way, ribs 21 are arranged everywhere on the half body of the sealing member 20 to prevent it ...

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Abstract

The invention provides a half joint. The half joint is characterized in that two half joint bodies define a half type pipe joint, straight grooves and arc-shaped grooves which are circumferentially formed in the axial side edges and the end parts of the half joint bodies are used for embedding sealing element half bodies, and convex ribs are arranged on the inner groove walls of the grooves and / oron the portions, corresponding to the inner groove walls, of the sealing element half bodies. According to the scheme, the convex ribs are arranged to enhance the embedding strength of the sealing element half bodies and the grooves, and the sealing element half bodies are prevented from being dislocated or even disengaging off under the impact of water flow.

Description

technical field [0001] The invention relates to a Huff type quick joint for pipelines. Background technique [0002] Cement, cast iron or galvanized steel pipes are often used in urban water supply and drainage pipe network systems. Due to changes in geological conditions or defects in the pipe body, pipe rupture accidents occur from time to time. Connector connection, that is, two half-pipe-shaped Huff quick connectors are used for emergency repairs, and the damaged parts C of the pipelines A and B are contained in the half-tube cavity surrounded by the Huff joint, and the half-circle of the Huff joint 1 is tightened by bolts On the joint surface, the rubber seal 2 closes up to seal the damaged part C. This method is widely used in pipeline emergency repair due to its less manpower, short installation time, fast speed, and ease of use. It does not require large-scale excavation of earth and replacement of new pipes, so it has become a common spare part for piping enclosure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L55/172
CPCF16L55/172
Inventor 焦祥静刘洁
Owner ANHUI TONGFA EQUIP CO LTD
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