DE20005871U1 - Radiation source for the irradiation of inner walls of elongated cavities with an egg-shaped cross section - Google Patents

Description

Mannheim, 28.03.2000 GM 24O3.anm Il/bau

Representative: Patent Attorney Dipl.-Ing. W.-D. Fischer Sophienstraße

D-68165 Mannheim

Applicant: UV Reline.tec GmbH & Co. Porschestraße

D-87437 Kempten

Radiation source for the irradiation of interior walls of elongated cavities with egg-shaped cross-section

The invention relates to a radiation source for the irradiation of inner walls of elongated cavities with an egg-shaped cross-section under continuous movement of the radiation along the axis of the cavity, in particular for the curing of radiation-curable synthetic resin laminate hoses during the internal renovation of pipes and sewer lines by means of UV radiation, with a chassis.

A radiation source with these features is known (German utility model 298 13 021), whereby the guide rollers arranged horizontally on the side are spring-loaded by damping units. In such hollow spaces with an egg-shaped cross-section, the light source must be guided as centrally as possible in the laminate hose, but at the same time it is not possible to produce the packers required to close the hose with the same circumference as the hose, as the packer can then no longer be installed cleanly on site.

The invention is based on the object of designing such a radiation source in such a way that the radiation source can be inserted into the laminate tube in a self-centering manner after the cleanly mounted packer while maintaining optimal laminate distances.

This object is achieved according to the invention in that the chassis has side plates that run in accordance with the cavity cross-section, between which an inner connecting plate with lamps attached to it is arranged and that

Side plates are provided with guide rollers in the lower sole area of the pipe and further lateral guide rollers are provided in the upper pipe area.

An advantageous embodiment provides that shock absorbers are provided for moving the guide rollers.

Furthermore, it is advantageous that a plug-in mechanism that can be operated from one side and a locking axis are provided as locking means.

It is further proposed that the lamps are mounted axially parallel to the pulling direction.

The invention is explained in more detail in the following description using an embodiment shown in the drawings.

Show it,

Fig. 1 an embodiment of the radiation source in

Elevation and

Fig. 2 a side view of the device in a pipe

with egg profile.

The radially arranged radiation source is used to irradiate an elongated cavity 14 within a pipe 1 to be renovated with an egg-shaped cross-section. The pipe 1 is lined on the inner wall with a hose 2 made of synthetic resin laminate. The

The radiation source can be used for all common egg-shaped profiles and pipe dimensions, especially for egg-shaped profiles with maximum diameters of 325 - 600 mm and maximum heights of 500 - 900 mm.

The radiation source has two side plates 16 arranged at a distance from one another and vertically to the axis 15 of the cavity 14, between which there is an inner connecting plate 6 on which the individual UVA lamps 5 are arranged. The lamps 5 are mounted axially parallel to the pulling direction 18.

To guide the radiation source, two guide rollers 3 are provided which are arranged at a distance from one another and are arranged on the side plates 16, which come into contact with the lower sole area 17 and which can be moved vertically. For this purpose, the rollers are arranged on wheel holders 12 which are held on lateral guides 19 of the side plates 16. Two shock absorbers 7 are used for moving. In the illustration in Figure 1, the roller 3' is shown in the minimum position in the left half and in the maximum position on the right side. In the minimum position 3', the rollers can be locked by a plug-in mechanism 11 which can only be operated from one side.

The upper horizontally mounted guide rollers 4 can be moved inwards by horizontally mounted shock absorbers 8 and 9 and can be locked in their minimum position by a one-sided locking axis 10.

After a clean assembly of the packer, the radiation source can be locked to its minimum position and introduced through the packer into the laminate tube 2. During this assembly, the lock is unlocked, whereby after unlocking the shock absorber self-centers the radiation source during the calibration of the laminate tube 2 to the optimal laminate distances.

Claims (4)

1. Radiation source for irradiating the inner walls of elongated cavities ( 14 ) with an egg-shaped cross-section with continuous movement of the radiation along the axis ( 15 ) of the cavity ( 14 ), in particular for curing radiation-curable synthetic resin laminate hoses ( 2 ) during the internal renovation of pipes and sewer lines ( 1 ) by means of UV radiation, with a chassis, that the chassis has side plates ( 16 ) running in accordance with the cavity cross-section, between which an inner connecting plate ( 6 ) with lamps ( 5 ) attached to it is arranged and that guide rollers ( 3 ) are provided on the side plates ( 16 ) in the region of the lower sole region ( 17 ) of the pipe ( 1 ) and further lateral guide rollers ( 4 ) are provided in the upper pipe region, characterized in that the lower guide rollers ( 3 ) are arranged opposite the lower sole region ( 17 ) ) upwards and the lateral guide rollers ( 4 ) inwards and that the rollers ( 3 , 4 ) are held in the retracted position by means of locking means ( 10 , 11 ). 2. Radiation source according to claim 1, characterized in that shock absorbers ( 7 , 8 , 9 ) are provided for moving the guide rollers ( 3 , 4 ). 3. Radiation source according to claim 1 and 2, characterized in that a plug-in mechanism ( 11 ) operable from one side and a locking axis ( 10 ) are provided as locking means. 4. Radiation source according to claims 1 to 3, characterized in that the lamps ( 5 ) are mounted axially parallel to the pulling direction ( 18 ).