NZ797331B2 - Inner sealing sleeve for inserting into pipes - Google Patents

Inner sealing sleeve for inserting into pipes Download PDF

Info

Publication number
NZ797331B2
NZ797331B2 NZ797331A NZ79733121A NZ797331B2 NZ 797331 B2 NZ797331 B2 NZ 797331B2 NZ 797331 A NZ797331 A NZ 797331A NZ 79733121 A NZ79733121 A NZ 79733121A NZ 797331 B2 NZ797331 B2 NZ 797331B2
Authority
NZ
New Zealand
Prior art keywords
latching member
band end
chamber
spring element
sealing sleeve
Prior art date
Application number
NZ797331A
Other versions
NZ797331A (en
Inventor
Darvin Helfgen
Maximilian Vollenbroich
Original Assignee
Amex Sanivar Ag
Filing date
Publication date
Priority claimed from DE102020122833.3A external-priority patent/DE102020122833B3/en
Application filed by Amex Sanivar Ag filed Critical Amex Sanivar Ag
Publication of NZ797331A publication Critical patent/NZ797331A/en
Publication of NZ797331B2 publication Critical patent/NZ797331B2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
    • F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
    • F16L55/163—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a ring, a band or a sleeve being pressed against the inner surface of the pipe

Abstract

Inner sealing sleeve for inserting into pipes, comprises a sleeve body made of an annularly bent band. An inner band end and an outer band end overlap and the sleeve body can be expanded so that the inner band end can be displaced relative to the outer band end along an expanding direction. A locking arrangement is provided, which prevents the inner band end from being displaceable relative to the outer band end in the direction opposite to the expanding direction. The locking arrangement has a slot arranged on the inner band end in the circumferential direction and has a row of teeth, and a latching mechanism with a latching member. The latching member is acted upon by a spring element and engages in the row of teeth, and the latching member and the spring element are arranged in a chamber of a guide body. The latching member is displaceable in the chamber. The spring element consists of an elastic plastics material and the chamber has a central axis arranged at an angle to the longitudinal axis of the slot, and a stop for the latching member is provided in the region of the opening of the chamber.

Claims (7)

1. Inner sealing sleeve for inserting into pipes, comprising a sleeve body made of an annularly bent band, wherein an inner band end and an outer band end overlap 5 and wherein the sleeve body can be expanded so that the inner band end can be displaced relative to the outer band end along an expanding direction and a locking arrangement is provided, which prevents the inner band end from being displaceable relative to the outer band end in the direction opposite to the expanding direction, wherein the locking arrangement has a slot arranged on the 10 inner band end in the circumferential direction and has a row of teeth, and a latching mechanism with a latching member, wherein the latching member is acted upon by a spring element and engages in the row of teeth, and the latching member and the spring element are arranged in a chamber of a guide body, wherein the latching member is displaceable in the chamber, wherein the spring element 15 consists of an elastic plastics material and the chamber has a central axis arranged at an angle to the longitudinal axis of the slot, and a stop for the latching member is provided in the region of the opening of the chamber.
2. Inner sealing sleeve according to claim 1, wherein the spring element is 20 incorporated between a side wall of the chamber and a rear wall portion of the latching member and the spring element presses the latching member towards an opening of the chamber, wherein latching teeth of the latching member project from the opening towards the row of teeth. 25
3. Inner sealing sleeve according to claim 1 or 2, wherein the chamber is covered by a cover.
4. Inner sealing sleeve according to claim 3, wherein the cover covers an upper flat side of the guide body.
5. Inner sealing sleeve according to claim 3 or 4, wherein the cover has longitudinally projecting guide tabs.
6. Inner sealing sleeve according to any one of claims 1 to 5, wherein the spring element consists of synthetic rubber.
7. Inner sealing sleeve according to any one of claims 1 to 6, wherein a recess is 5 provided at one end of the slot for the latching mechanism to pass through.
NZ797331A 2021-06-09 Inner sealing sleeve for inserting into pipes NZ797331B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020122833.3A DE102020122833B3 (en) 2020-09-01 2020-09-01 Inner sealing sleeve for insertion in pipes
PCT/EP2021/065475 WO2022048805A1 (en) 2020-09-01 2021-06-09 Inner sealing sleeve for inserting into pipes

Publications (2)

Publication Number Publication Date
NZ797331A NZ797331A (en) 2024-09-27
NZ797331B2 true NZ797331B2 (en) 2025-01-07

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