ES2403139B1 - GAS KEY INTERIOR HOSE - Google Patents

Abstract

Internal gas key sleeve (1) for a gas key (2) with an essentially cylindrical cross section, next to which an axially continuous groove (4) is provided, which makes it possible to radially compress the inner sleeve of gas key (1), where the inner gas key sleeve (1) is made, at least partially, of plastic material.

Description

INTERNAL GAS WRENCH HOSE

The present invention relates to an inner gas key sleeve.

The internal gas wrench sleeves penetrate a gas wrench, and have the function of fixing a sealing disk and, thus, guaranteeing the tightness between the gas wrench and the gas pipe in the assembled state. Also, during the assembly of the gas pipe and the gas tap, they serve the assembler as a guide. In addition, the inner gas key sleeves support the chemical action of liquids that are used during the manufacture of the gas key valve. At present, the inner gas key sleeves are predominantly made of steel, for example, of AISI 304, or the like.

By introducing conventional internal gas wrench sleeves into gas tube holes, with the internal gas wrench sleeve, scratches are often caused in the gas tube hole, and eroded by scratch can be put into the tube Of gas. Eroded is a problem of dirt inside the gas pipe, since it is transmitted to elements arranged beyond where it can cause damage to the operation. In particular, there is a danger of malfunctions due to said metallic abrasion, in magnetic elements, such as those installed next to valves of the conduction system.

Therefore, the objective of the present invention is to create an improved inner sleeve of the gas valve.

This objective is achieved by means of an inner gas key sleeve with the characteristics of claim 1.

Accordingly, an inner gas key sleeve is proposed for a gas key or a gas valve, especially in a gas cooking hob, which has an essentially cylindrical cross section, in which a groove is provided. axially continuous, which makes it possible to radially compress the inner gas key sleeve, where the inner gas key sleeve is made, at least partially, of plastic material.

With the inner sleeve of the gas wrench manufactured, at least partially, of plastic material, it can be introduced into a hole in the gas tube without causing deterioration of the gas tube, or abrasion of the gas. Preferably, the inner gas key sleeve is made of highly resistant plastic materials, such as, for example, polyoxymethylene (POM) or polycarbonate, to achieve sufficient strength. In one embodiment, the inner gas key sleeve is made exclusively of a plastic material. The gas wrench sleeve is especially suitable for attaching or joining a gas wrench joint to an aluminum gas pipe.

In the inner gas key sleeve, the axial groove can run in a first wide groove area and a second narrower groove area, which pass each other through a radius. The groove makes it possible to compress the inner gas key sleeve radially. In this way, the inner gas key sleeve can elastically engage its first wide groove area in a gas key conduit. The radius, through which the groove passes from the first groove area to the second groove area, makes a support on the gas key possible. In this way, the inner gas key sleeve can be supported on the gas key oriented radially and axially.

According to an embodiment of the inner gas key sleeve, a chamfer is provided axially on the end side. The chamfer makes possible a simple introduction into the hole of a gas pipe. Preferably, the inner sleeve of the gas tap has a wall thickness of at least 0.5 mm.

According to another embodiment, the inner sleeve of the gas tap is reinforced with steel inside. The reinforcement with steel inside increases strength and, above all, stiffness. Simultaneously, the advantages are maintained by coating the plastic material of the reinforcement with steel.

According to one embodiment, the radius is between 2 and 3 mm. In this way, compatibility with conventional gas keys is given.

According to another embodiment, on the end side, bevels are provided next to the second groove area. The bevels prevent the inner sleeve of the gas wrench from clogging when inserted into a hole in a gas pipe.

Likewise, a gas tap is proposed that, in particular, is configured as a gas valve for a gas cooking hob. Here, the gas key has a connection joint, in which an inner gas key sleeve is arranged, as described above.

In addition, a gas cooking hob is proposed with at least one gas burner, a gas splice tube, and a gas wrench to block

or let a gas stream pass from the gas tube to the gas burners. The gas tap is then provided with an inner sleeve of the gas tap, as described above.

Other possible implementations of the invention also comprise combinations not explicitly mentioned of features described above, or below in relation to the embodiments. In this regard, the person skilled in the art will also add individual aspects such as improvements or complements to the respective basic shape of the internal gas key sleeve, the gas key and / or the gas cooking hob.

Other embodiments and advantageous aspects of the invention are the subject of the secondary claims, as well as the embodiments of the invention described below. Hereinafter, the invention is described in more detail by means of preferred embodiments, with reference to the attached figures.

Here, they show:

Figure 1:

a representation in perspective of a gas tap with a

inner sleeve of gas key disposed therein; Y

Figure 2:

above, a front view and, below, a top view on a

inner sleeve of gas key.

In the figures, the same or equal function elements are provided with the same reference symbols, provided that nothing else is indicated.

Figure 1 shows a perspective representation of a gas key 2 with an inner gas key sleeve 1 disposed therein. The gas valve 2 has a joint 3 for connection with a gas pipe (not shown in the figures). In the connection joint 3 of the gas tap 2, an inner sleeve of the gas tap 1 is arranged. During the assembly of the gas tap 2 next to a gas pipe not explicitly shown here, the inner sleeve of

gas tap 1 penetrates a hole, which is provided in the gas pipe for

the union of gas tap 2 and gas pipe. The inner sleeve of gas key 1

It has, in particular, the function of fixing a seal and thus guarantee

the tightness between gas tap 2 and gas pipe in the assembled state.

S

Also, during the assembly of gas pipe and gas tap 2, it serves the

Editor as a guide.

Figure 2 shows, above, an elevation view and, below, a view in

floor of an inner sleeve of gas key 1. The inner sleeve of key of gas

Gas 1 has an axial groove 4, which completely opens the inner sleeve

10

of gas key 1. The axial groove 4 has a first wide groove area 5 and

a second narrow groove area 6. Slot 4 is wider in the first

slot area 5 than in the second slot area 6. The slot areas 5, 6

they pass each other through a radius 7. In this exemplary embodiment, the

inner sleeve of gas key 1 has a chamfer 8 next to one end. In

fifteen

this exemplary embodiment, the inner gas key sleeve 1 is manufactured

of plastic material, and not of metal. Next to the second slot area 6,

bordering on chamfer 8, bevels 9 are provided.

Slot 4 makes it possible to radially compress the

inner sleeve of gas key 1. In this way, the inner sleeve of key

twenty

of gas 1 can elastically engage in a conduit 10 of the gas tap. He

radius 7, which passes the first slot area 5 and the second one

groove area 6, makes possible a support of a cylindrical element (not shown

in the figures) in the duct 10 of the gas tap 2. With this, the sleeve

interior of gas tap 1 can be supported on gas tap 2 oriented in

25

radial and axial direction. The chamfer 8 makes it possible to slide easily into

a hole in the gas pipe, next to which the gas tap 2 is installed.

bevels 9 prevent the inner gas key sleeve 1 from clogging to the

get into a hole in a gas tube.

Reference symbols

Inner gas key sleeve

2

Gas tap

3

Junction joint

4

Groove

5

First wide groove area

6

Second narrowest groove area

7

Radio

8

Chamfer

9

Beveled

10

conduelo

Claims (9)

one.

Internal gas key sleeve (1) for a gas key (2) with an essentially cylindrical cross section, next to which an axially continuous groove (4) is provided, which makes it possible to radially compress the inner sleeve of gas key (1), where the inner sleeve of gas key (1) is made, at least partially, of plastic material.

2.

Inner gas key sleeve (1) according to claim 1, characterized in that the axial groove (4) runs in a first wide groove area (5) and a second narrowest groove area (6), which pass one to the another through a radio (7).

3.

Inner gas key sleeve (1) according to claim 1 or 2, characterized in that, axially at one end, it has a chamfer (8).

Four.

Inner gas key sleeve (1) according to one of the preceding claims, characterized in that the inner gas key sleeve (1) is reinforced with steel inside.

5.

Inner sleeve of gas key (1) according to one of claims 2 to 4, characterized in that the radius (7) is between 2 and 3 mm.

6.

Inner gas sleeve sleeve (1) according to one of the preceding claims, characterized in that, on the end side, bevels (9) are provided next to the second groove area (6).

7.

Gas tap (2), especially gas valve for a countertop

gas cooking, which has a joint (3),

in which is

ready

a inner sleeve of gas key (1) according a of the

claims 1-6.

5

8.

Gas hob with at least one gas burner, a

gas splice tube, and a gas wrench (2) to block or leave

pass a gas stream from the gas tube to the burners

of gas, characterized in that the gas key (2) is provided with

a

10

gas sleeve inner sleeve (1) according to one of claims 1

6.