Compression fitting for condensate drain pipes

Abstract

The invention relates to a compression fitting for condensate drainage comprising a compression nut (A), a compression fitting body, and a gasket (F). The compression nut (A) has a conical stop (B) on one of its end faces and an internal thread formed on its inner surface. The compression fitting body has a male spigot (H) and a collet (C), between which a limiting stop (I) and a limiting stop (E) are arranged. The collet (C), on the side of the limiting stop (E), has external threads (D) configured for threaded engagement with an internal thread of the compression nut (A). The limiting stop (I) is formed as an axial stop of the compression fitting body limiting axial movement of the body relative to a mating pipe on the side of the male spigot (H), and the limiting stop (E) is formed as an end stop for the compression nut (A) arranged on the collet (C). The gasket (F) is configured to be positioned inside the collet (C), wherein the gasket (F) comprises integrated sealing rings (G).

Description

[0001] COMPRESSION FITTING FOR CONDENSATE DRAIN PIPES

[0002] Field of the Art

[0003] The present utility model is suitable for connecting condensate drain pipes.

[0004] State of the Art

[0005] Rubber seals (https: / / www.mondishop.it / tubi-a-innesto-per-scarichi- ‘ polipropilene / 16420-morsetto-di-scarico-in-gomma.html) are commonly used to connect condensate drains in concealed locations such as chases and plasterboard walls. However, they do not provide reliable sealing and carry a significant risk of accidental pull-out.

[0006] Such rubber seals typically comprise an elastic rubber body made in the form of a sleeve with a thickened collar and a through central opening for receiving mating pipes. The sealing and retention of the connected pipes are achieved solely due to elastic deformation of the rubber material, without any mechanical fixation elements or threaded clamping components.

[0007] The rubber seal used to connect flexible corrugated condensate pipes to concealed drain lines is the closest analogue of the present utility model.

[0008] However, these seals have a major drawback: they are suitable for vertical installations only. When used horizontally, these seals are weak, and the pipe may pull out. In addition, such rubber seals are structurally intended only for passive coupling of pipes of different diameters in gravity-driven, non-pressurised drainage systems and do not provide axial fixation of the inserted pipe. As a result, the connection is susceptible to axial displacement and loss of sealing integrity under vibrations, operational loads, or concealed installation conditions, including horizontal or inclined arrangements.

[0009] The technical problem underlying the present utility model consists in providing reliable sealing of a pipe connection when installed in concealed chases or plasterboard structures, ensuring stable operation in -both horizontal and vertical orientations.

[0010] The technical problem is solved by a compression fiting for condensate drainage comprising a compression nut (A), a compression fiting body and a gasket (F). The compression nut (A) has a conical stop (B) on one of its end faces and has an internal thread formed on its inner surface. The compression fiting body has a male spigot (H) and a collet (C), between which a limiting stop (I) and a limiting stop (E) are <

[0011]

[0012] arranged. The collet (C), on the Side of the limiting stop (E), has external threads (D) 3 configured for threaded engagement with an internal thread of the compression nut O (A). Jhe limiting stop <l) is formed as an axial stop of the compression fitting body limiting axial movement of the body relative to a mating pipe on the side of the male spigot (H). The limiting stop (E) is formed as an end stop for the compression nut (A)arranged on the collet (C). The gasket (F) is configured to be positioned inside the collet (C), wherein the gasket (F) comprises integrated sealing rings (G).

[0013] The technical result achieved by the present utility model consists in the following.

[0014] - the gasket (F) perfectly fits grooves of flexible corrugated pipes by means of its integrated sealing rings (G). This ensures that the fitting stays securely in place even when installed horizontally. When used with smooth rigid pipes, the sealing rings (G) of the gasket (F) help to increase the overall tightness of the compression fitting.

[0015] - by means of the collet (C), the threaded compression nut (A), and the gasket (F), the utility model can fit different pipe diameters, thereby providing excellent sealing performance and eliminating the risk of accidental pull-out.

[0016] - the male spigot (H) makes insertion into the female end of the drain system simple and secure. Furthermore, the limiting stop (I) on the male spigot (H) prevents the fitting from being pushed in too far, thereby ensuring proper positioning in each case.

[0017] The operating principle of the present utility model is illustrated in the description and schematic drawings below, where:

[0018] FIG. 1 – the gasket;

[0019] FIG. 2 – the assembled compression fitting;

[0020] FIG. 3 – the compression nut;

[0021] FIG. 4 – the disassembled compression fitting;

[0022] FIG. 5 – the compression fitting for condensate drain pipes with elbow male spigot. A compression fitting for condensate drainage comprises a compression nut (A), a RO / UA compression fitting body and a gasket (F).

[0023] The compression nut (A) has a conical stop (B) on one of its end faces and has an internal thread formed on its inner surface.

[0024] The compression fitting body has a male spigot (H) and a collet (C), between which a limiting stop (I) and a limiting stop (E) are arranged.

[0025] The collet (C), on the side of the limiting stop (E), has external threads (D) configured for threaded engagement with the internal thread of the compression nut (A).

[0026] The limiting stop (I) is formed as an axial stop of the compression fitting body limiting axial movement of the body relative to a mating pipe on the side of the male spigot (H).The limiting stop (E) is formed as an end stop for the compression nut (A) arranged on the collet (C). The gasket (F) is configured to be positioned inside the collet (C), wherein the gasket (F) comprises integrated sealing rings (G).

[0027] in the main embodiment, the gasket (F) with integrated sealing rings (G) is configured such that the sealing rings conform to grooves of flexible corrugated pipes. When used with smooth rigid pipes, the sealing rings (G) increase the overall tightness of the compression fitting, allowing installation including horizontal arrangements.

[0028] The combination of the collet (C), the compression nut (A), and the gasket (F) enables the compression fitting to accommodate different diameters of pipes, while maintaining reliable sealing and reducing the risk of accidental pull-out.

[0029] The limiting stop (E) prevents axial displacement of the compression nut (A) beyond a predetermined position, while the limiting stop (I) restricts excessive insertion of the compression fitting body into the mating pipe.

[0030] The male spigot (H) facilitates insertion into the female end of a drain system, while the limiting stop (I) ensures correct axial positioning of the compression fitting body. The male spigot may be straight (H) or elbow-shaped (J), thereby allowing installation in confined or difficult-to-access locations, such as inside boilers.

[0031] All components of the compression fitting interact structurally in accordance with the arrangement defined in the claims, ensuring reliable connection of condensate drainage pipes, including concealed installations and non-vertical mounting orientations.

[0032] In order to connect flexible corrugated pipes to the main drain system, the compression fitting for condensate drain pipes shall be used by performing the following steps:

[0033] 1 ) Inserting the male spigot (H) into the female end of the drain system, wherein RO / UA a hermetic connection between the male spigot (H) and the drain pipe is achieved either by adhesive bonding or by arranging a sealing gasket between the drain pipe and the male spigot (H).

[0034] 2) Unscrewing the compression nut (A) and sliding it onto the corrugated pipe after the pipe is cut to a required length.

[0035] 3) Inserting the corrugated pipe into the collet (C), with the gasket (F) arranged between the corrugated pipe and the collet (C).

[0036] 4) Tightening the threaded compression nut (A) until it reaches the limiting stop (E).

Claims

CLAIMS1. A compression fiting for condensate drainage comprising a compression nut (A), a compression fiting body and a gasket (F),a compression nut (A) has a conical stop (B) on one of its end faces and has an internal thread formed on its inner surface,the compression fitting body has a male spigot (H) and a collet (C), between which a limiting stop (I) and a limiting stop (E) are arranged,wherein the collet (C), on the side of the limiting stop (E), has external threads (D) configured for threaded engagement with an internal thread of the compression nut (A),the limiting stop (I) is formed as an axial stop of the compression fitting body limiting axial movement of the body relative to a mating pipe on the side of the male spigot (H),and the limiting stop (E) is formed as an end stop for the compression nut (A) arranged on the collet (C),the gasket (F) is configured to be positioned inside the collet (C), wherein the gasket (F) comprises integrated sealing rings (G).

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