FR2610224A1

FR2610224A1 - Method for unblocking and cleaning out underground pipes such as drainage pipes

Info

Publication number: FR2610224A1
Application number: FR8701319A
Authority: FR
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-02-02
Filing date: 1987-02-02
Publication date: 1988-08-05

Abstract

The invention relates to a device consisting of a self-propelled mechanical assembly 17 capable of completely removing bits causing obstructions in drains, such as deposits of sand and clumps of rootlets inside them. It consists of a hollow body 10 fitted with metal rails 14 with rollers. To this body there are bolted: - at the rear, a part 11 equipped with four jets 12 with which to propel itself on the outward journey and with which to move the shredded matter 19 towards the point of entry on the homeward journey; - at the front a rotating part 6 equipped with a bevelled point 1 to assist the penetration of a toothed disk 2 in order to shred the bits blocking the drain 15 and with four jets 7 to enable it to rotate. This mechanical assembly is connected to a reinforced hose supplied with water at high pressure by a generator drawing from a water tank. The device according to the invention is particularly intended for unblocking and cleaning out agricultural drains.

Description

DESCRIPTION
La présente invention concerne un dispositif permettant de déboucher et d'écurer les canalisations souterraines, notamment les tuyaux de drainage.DESCRIPTION
The present invention relates to a device for unblocking and cleaning underground pipes, in particular drainage pipes.

Depuis plusieurs années nous assistons à une très forte expansion du drainage des terres agricoles et terrains sportifs en particulier. For several years we have witnessed a very strong expansion of the drainage of agricultural land and sports grounds in particular.

Toutefois, au fur et à mesure de leur fonctionnement, ces tuyaux finissent par s'obstruer; diminuant, voir même annulant complètement leur efficacité. However, as they work, these pipes eventually become blocked; decreasing, or even completely canceling their effectiveness.

Nous constatons que l'obstruction des drains à deux causes essentielles, d'une part le dépôt du sable et d'autre part, l'amoncellement des radicelles des végétaux. Accidentellement des éléments plus importants (gravillon, branchâge, ect...) peuvent être à l'origine de l'obstruction. We note that the obstruction of the drains with two essential causes, on the one hand the deposit of the sand and on the other hand, the accumulation of the rootlets of the plants. Accidentally more important elements (gravel, branching, ect ...) can be the cause of the obstruction.

Actuellement, la remise en état de fonctionnement s'effectue prin cipalenent par le remplacement des parties de tuyaux obstruées. Certes, des procédés de nettoyage ont été élaborés tel le pompage des matières par dépression avec ou sans association de moyens mécaniques, mais ils ne paraissent pas trés efficaces, en particulier pour l'élimination du chevelu. Currently, the repair is carried out mainly by replacing the blocked pipe parts. Admittedly, cleaning methods have been developed such as pumping materials by vacuum with or without the combination of mechanical means, but they do not appear to be very effective, in particular for eliminating the hair.

La présente invention à pour but d'éliminer totalement tous les é1Cn:ents précités, cause de l'obstruction. Elle consiste en l'indroduction d'un ensemble mécanique dont l'avance est assurée par de l'eau injectée sous pression, celle-ci permettant également la rotation d'une partie de cet ensemble. The present invention aims to completely eliminate all of the aforementioned é1Cn: ents, cause of the obstruction. It consists of the production of a mechanical assembly, the advance of which is ensured by water injected under pressure, this also allowing the rotation of a part of this assembly.

Cet ensemble mécanique à pour fonction
- de passer au travers des éléments obstruant les drains,
- de déchiqueter tous les éléments afin de faciliter leur évacuation,
- de repousser l'ensemble des matières vers le point d'introduction d'oit elles seront évacuées.This mechanical assembly has the function
- to pass through elements obstructing the drains,
- to shred all the elements in order to facilitate their evacuation,
- to push all the materials towards the point of introduction where they will be evacuated.

La figure 1 représente, en coupe, l'ensemble mécanique. Figure 1 shows, in section, the mechanical assembly.

la figure 2 représente, l'ensemble lors de son intervention. FIG. 2 represents the assembly during its intervention.

L'élément mécanique précité se compose
- d'un corps creux (10) muni de guides de protection métallique à roulettes (14) permettant d'éviter une dégradation de la paroi intérieure du drain (15) et de centrer l'ensemble mécanique (17) lors de son fonctionnement. La dimension sera adaptée à chaque diamètre de drain à traiter.The aforementioned mechanical element is composed
- A hollow body (10) provided with metal protection guides with rollers (14) making it possible to avoid degradation of the internal wall of the drain (15) and to center the mechanical assembly (17) during its operation. The dimension will be adapted to each drain diameter to be treated.

- sur ce corps creux est vissé à l'arrière une pièce (11) permettant le passage de l'eau et munie de 4 jets (12) dont l'inclinaison est telle qu'elle permet à l'aller la propulsion de l'ensemble et au retour l'en- trainement des matières déchiquetées (19) vers le point de pénétration
Cette pièce est elle même reliée à un flexible armé (20) par la pièce filetée ( 13) et alimenté par un générateur d'eau (23) à haute pression desservi par une cuve à eau (24).- on this hollow body is screwed at the rear a part (11) allowing the passage of water and provided with 4 jets (12) whose inclination is such that it allows the propulsion of the together and on returning the shredded material (19) towards the point of penetration
This part is itself connected to a reinforced hose (20) by the threaded part (13) and supplied by a high pressure water generator (23) served by a water tank (24).

Ce corps est muni à l'avant d'une tête composée de trois parties principales
- Une partie (9) permettant le passage de l'eau sous pression est vissée sur le corps (10) et possède une butée (5) à son extrémité.This body is provided at the front with a head composed of three main parts
- A part (9) allowing the passage of pressurized water is screwed onto the body (10) and has a stop (5) at its end.

- Une butée (5) permettant le libre jeu de la pièce (6) et lui éviter de sortir de son axe (9). - A stop (5) allowing the free play of the part (6) and preventing it from going out of its axis (9).

- Une pièce (8) en téflon assurant l'étanchéité et évitant le grippage entre les pièces (6) et (9). - A part (8) in Teflon ensuring sealing and preventing seizure between parts (6) and (9).

- Une partie (6) munie de 4 jets (7) dont l'inclinaison est telle qu'elle permet sa rotation à trés grande vitesse. - A part (6) provided with 4 jets (7) whose inclination is such that it allows its rotation at very high speed.

- Une pièce (4) assure la liaison entre les pièces (6) et (1) avec entre elles une rondelle caoutchouc (3) permettant au disque (2) de jouer légèrement. - A part (4) provides the connection between the parts (6) and (1) with a rubber washer (3) between them allowing the disc (2) to play slightly.

- Une partie (1) vissée sur la précédente munie à son extrémité d'une pointe triangulaire biseautée facilitant la pénétration dans les matières et d'un disque métallique (2) dentelé déchiquetant les racines. Celle-ci au même titre que les guides métalliques (14), sera adaptée à chaque diamètre de drain à traiter. - A part (1) screwed onto the previous one fitted at its end with a bevelled triangular point facilitating penetration into the materials and with a serrated metal disc (2) shredding the roots. This, like the metal guides (14), will be adapted to each drain diameter to be treated.

L'opération consiste en
- La mise en place de l'ensemble mécanique (17) dans la partie aval du drain (15).The operation consists of
- The installation of the mechanical assembly (17) in the downstream part of the drain (15).

- Cet ensemble est relié à un générateur (23) haute pression desservi par une cuve à eau (24), par l'intermédiaire d'un flexible armé (20). - This assembly is connected to a generator (23) high pressure served by a water tank (24), via a reinforced hose (20).

- Suite à la mise en pression, l'ensemble mécanique (17) avance, pénètre dans les matières, déchiquete les racines (16) et repousse vers l'arrière, à l'aide des jets (18), l'ensemble des éléments obstruant le drain (15)
Après avoir procédé ainsi sur une certaine longueur de drain, le flexible sous pression sera tiré mécaniquement vers son point de pénétration, par un enrouleur hydraulique (22), l'eau entrainant l'ensemble des matières (19) à l'origine de l'obstruction vers l'exutoire (21). Si nécessaire, une ou plusieurs passes supplémentaires seront réalisées jusqu'au nettoyage complet du drain (15). - Following the pressurization, the mechanical assembly (17) advances, penetrates into the materials, shreds the roots (16) and pushes backwards, using the jets (18), all of the elements blocking the drain (15)
After having proceeded thus over a certain length of drain, the flexible under pressure will be pulled mechanically towards its point of penetration, by a hydraulic reel (22), the water entraining all the materials (19) at the origin of the obstruction to the outlet (21). If necessary, one or more additional passes will be made until the drain (15) is completely cleaned.

Claims

1) Device for unblocking and cleaning underground pipes, in particular drainage pipes, characterized in that cleaning is carried out by introducing a mechanical assembly inside the drain, self-propelled by 4 jets high pressure water pressing on the internal walls of the drain.

2) Device according to claim 1 characterized in that the mechanical assembly (17) is provided with 4 guides (14) on rollers, allowing the safeguarding of the internal wall of the drain (15), its centering during operation the cleaning of the serrated disc designated below as well as its adaptation to all the drain diameters to be treated.

3) Device according to claim 1 characterized in that the mechanical assembly is provided at the front with a head equipped with 4 jets (7), whose inclination is such that it allows it to rotate at high speed .

4) Device according to claim 3 characterized in that the rotary head (6) is equipped at its front end with a bevelled triangular tip (1) allowing penetration into the deposited materials.

5) Device according to claim 3 and 4 characterized in that the rotary head (6) is equipped at its front end with a serrated disc (2) adapted to each diameter of drain to be treated, allowing to shred the roots.

6) Device according to claim 1 characterized in that the mechanical assembly is connected to a reinforced hose (20) by the threaded part (13) to a generator (23), supplying water under pressure.

7) Device according to claim 1 characterized in that the mechanical assembly (17) kept under pressure by the hose (20) is towed when it returns by a hydraulic reel (22).

8) Device according to claim 7 characterized in that when it returns, the 4 rear water jets (18) under pressure push the shredded material (19) towards the point of penetration of mechanical assembly in the drain.