WO2012028590A2

WO2012028590A2 - Pipe-cleaning nozzle body

Info

Publication number: WO2012028590A2
Application number: PCT/EP2011/064843
Authority: WO
Inventors: Albrecht Wüthrich
Original assignee: Wuethrich Albrecht
Priority date: 2010-09-01
Filing date: 2011-08-29
Publication date: 2012-03-08
Also published as: WO2012028590A3

Abstract

The pipe-cleaning nozzle body is used to connect to the end of a water pressure hose, comprising backwardly directed nozzles (7) for generating a back jet and thrust onto the pipe-cleaning nozzle body in order to pull same into a pipe to be cleaned. Same is used to clean waste water pipes or ducts which are buried or encased in concrete and comprises at least one part (32) which can be moved back and forth in relation to the nozzle body on same in at least two different planes by virtue of the water pressure and pivoted back and forth or rotated and which has at least one further cleaning nozzle (36). In the example shown, nozzle wheels (32) which can be rotated relative to the rear part (29) of the nozzle body about the longitudinal axis (30) of said body are provided. Said nozzle wheels (32) have a toothing (33) on the outer inside edge thereof, wherein said toothing interacts with a gear wheel (34) which is arranged on the front of the nozzle body and is stationary with respect to same. The cleaning nozzles (36) are installed in the circumferential wall of the nozzle wheels (32) at varying discharge angles. The recoil forces of the exiting water jets cause the nozzle wheels (32) to rotate, and the wheels as a whole are also caused to rotate about the axis (30) of the gear wheel (34).

Description

Pipe cleaning nozzle body

This invention relates to a pipe cleaning nozzle body as it is used to reindeer in buried or concreted Abwasserroh ren or channels of houses, blocks of flats, commercial, administrative and industrial buildings to remove deposits.

Over time, residues and deposits can form in such pipes, which narrow or even close the cross section of the pipe or channel. To eliminate these restrictions and closures, there are rinsing nozzle heads that are connected to the end of a water pressure hose and then inserted head-first into a pipe or duct to be cleaned. These rinsing nozzle heads have rearwardly directed nozzles through which the pressurized water spouts out. It creates a recoil, which draws the rinsing nozzle head together with the water pressure hose into the pipe or the channel and at the same time cleans the wall of the pipe or channel. Dirt, limescale and debris are released from the wall and when the rinse nozzle head is retracted, the loosened and removed material and bedding are flushed back to the point where the rinse nozzle head is withdrawn from the pipe or duct. From there, the detached material can then be transported away by the flow of water.

Normal rinsing nozzle heads are pushed forward by rays emerging to the rear and at the same time remove the debris from the pipe wall. A disadvantage of these rinsing nozzle heads is that their nozzles form a banding Produce on the pipe wall, because the water jets emerging to the rear only irradiate a single point in the pipe and the forward moving of the nozzles according to the pipe inner wall depending only ever along a line pressurized with water pressure. The intervening areas are not effectively cleaned and there the debris remains and the deposits remain liable.

In the 1980s, flushing nozzle or pipe cleaning nozzle body were then known, which have a rotating center piece which rotates about the longitudinal axis, or about the axis of rotation of the nozzle body. From the rotating center, water jets pass into the plane of rotation of the center piece or slightly inclined backwards to the same, wherein the beam direction relative to the radial can also deviate slightly in the direction of rotation. As a result, a torque is exerted on the rotating centerpiece as a result of the recoil of the exiting water jet, so that this is rotated. The thus emerging jets of water therefore spray along a ring on the pipe inner wall. As the tube cleaning nozzle advances in the tube due to the rearwardly directed nozzles, a helical line is injected from the nozzles in the rotating center of the nozzle body. In order for the rotating centerpiece not to rotate too fast, individual nozzles may also be disposed therein to produce an opposing braking torque on the rotating centerpiece. This can be achieved that the dwell time of the rotating water jets is increased at a certain point, or that the water jets rotate only slowly and can act longer at the point of impact. Also, these nozzles squirt a circle or an ellipse on the inner wall of the pipe in a stationary position of the pipe cleaning nozzle, and when the pipe cleaning nozzle body moves forward, a helical line accordingly. A flat and complete cleaning of the pipe wall is not achieved. A plane jet of water Nesse certainly produce. But such a streamlined to a spray line water jet is far less effective than a bundled narrow beam as possible, because the water pressure and the impact force of the beam is then distributed from one point to a line and weakened accordingly. After all, but with a nozzle body with rotating center piece an all-round cleaning effect is achieved, although only along helical lines on the pipe inner wall.

The object of the present invention is to provide a pipe cleaning nozzle body, which makes it possible to sweep as completely as possible the pipe inner wall with one or more bundled water jets, so that a maximum cleaning effect is achieved at all possible points of the pipe inner wall. In addition, this pipe cleaning nozzle body should be robust and correspondingly durable and inexpensive to manufacture.

This object is achieved by a pipe cleaning nozzle body for connection to the end of a water pressure hose, with rearwardly directed nozzles for generating a return jet and thrust on the pipe cleaning nozzle body to its collection in a abgereininigendes pipe, and at least one with respect to the nozzle body on the same in at least two different levels by virtue of the water pressure back and forth movable, back and forth pivoting or rotating part, each with at least one further cleaning nozzle.

In the drawings, such pipe cleaning nozzle body are presented in various embodiments and in the following description, these embodiments are described in detail and their function will be explained.

It shows:

Figure 1: A pipe cleaning nozzle body with back and forth pivoting additional cleaning nozzles, in a perspective exploded view;

Figure 2: This pipe cleaning nozzle body assembled in one

Side view seen on the long side;

Figure 3: This pipe cleaning nozzle body assembled in one

View on the long side, seen from above; Figure 4: A longitudinal section through this pipe cleaning nozzle body;

Figure 5: A pipe cleaning nozzle body with two counter-rotating, connected by a tooth parts for the additional cleaning nozzles;

Figure 6: This pipe cleaning nozzle body seen in a view from above;

Figure 7: This pipe cleaning nozzle body in a section along the

Line B-B in Fig. 6;

Figure 8: A pipe cleaning nozzle body with a worm gear for rotating the central part, in which the additional cleaning nozzles are installed;

Figure 9: A double worm gear for rotating the middle part of

Pipe cleaning nozzle body according to Figure 8;

FIG. 10 shows the pipe cleaning nozzle body according to FIG. 8 in a view from above on the longitudinal side;

Figure 1 1: The pipe cleaning nozzle body of Figure 8 in a section along the line A-A in Figure 10;

FIG. 12 shows a pipe cleaning nozzle body with a rotation of the additional cleaning nozzles activated by recoil;

Figure 13: This pipe cleaning nozzle body in a view of the

Side seen on the long side, with dashed inner parts; FIG. 14 shows the pipe cleaning nozzle body according to FIG. 12 in a view rotated on the longitudinal side by 90 ° about the longitudinal axis, with dashed inner parts;

Figure 15: A pipe cleaning nozzle body with pendulum in the axial direction middle part with beveled end face;

FIG. 16 shows a pipe cleaning nozzle body in a further embodiment with a cylindrical central part and bevelled guide sleeve which oscillates in the axial direction;

Figure 17: A pipe cleaning nozzle body in a further embodiment with pendulum in the axial direction middle part with guide groove;

FIG. 18 shows a pipe cleaning nozzle body with nozzles positioned in a bevel gear;

Figure 19: The pipe cleaning nozzle body of Figure 18 in a perspective view;

FIG. 20: a pipe cleaning nozzle body for clearing away with an attachable cover;

Figure 20: Another pipe cleaning nozzle body for cleaning.

A first embodiment of such a pipe cleaning nozzle body is shown in Figure 1. The nozzle head consists of a rear part 1, a middle part 2 and a front part 3, which are all assembled on the same longitudinal axis 4. For this purpose, a mounting screw 5, which is screwed into the bolt 6, which is equipped for this purpose in its end with an internal thread. The rear part 1 of the nozzle body is equipped with recoil nozzles 7. These are aligned obliquely to the longitudinal axis 4 of the nozzle body and consist of grub screws with hexagon allen and with central bore for the formation of the actual nozzle for the water outlet. These grub screws can be screwed with an Allen key into corresponding threaded holes 9 in the rear part 1 of the nozzle body. As an alternative, offer also commercially available nozzles which are screwed into a threaded hole. These commercial nozzles usually have a hexagon socket, which is then screwed sunk in the nozzle head. Thus, the recoil nozzles 7 are designed as wear parts and can be easily replaced at any time. At the rear end of the rear part 1, this has along its longitudinal axis 4, a central bore 8 with internal thread, which serves to receive the nipple at the front end of the pressure hose to be connected. The bore 8 leads from the rear end of the rear part 1 further forward, tapers and leads into the interior of the bolt 6. In addition, the holes 9 for the recoil nozzles 7 lead into the central bore 8 in the rear part 1 inside. In the bolt 6 some radial holes 1 1 are introduced in its tapered region 10. Thus, the pressurized water injected from the connected pressure hose on the one hand by the recoil nozzles 7 obliquely behind, and on the other hand, water flows from these radial bores 1 1 and serves to supply the additional cleaning nozzles, the arrangement will now be described.

Namely, the middle part 2 is slipped over the pin 6 and secured with screws 12 with the rear part 1 against rotation. The threaded pins 12 pass through the projecting edge 57 of the rear part 1 and lead along the flat sides of the central part 2 on the same. The middle part 2 is equipped with a transverse bore 14. In this fits a mushroom-shaped pivot tube 15, the head 16 is provided with an obliquely upwardly emerging bore 17. In this bore 17, a cleaning nozzle 18 is inserted in the form of a grub screw with Allen hexagon and central bore. The head 16 is also not circular, but has on its one side a control surface 28, the meaning will be explained later. The pivot tube 15 has a longitudinal axis lying in the transverse slot 23. This slot 23 receives the bolt 6 and allows the pivot tube 15 can pivot about its longitudinal axis a piece-wide back and forth until the end edges of the elongated hole 23 each find a stop on the pin 6. Nevertheless, the interior of the pivot tube 15 is supplied via the radial holes 1 1 in the tapered portion 10 of the bolt 6 with pressurized water. The water reaches the head 16 of the pivot tube 15 and passes through the Abreinigungsdüse 18 to the outside. From below, a nozzle head 20 is inserted with a nipple 24 in the bore 14 for the pivot tube 15. By means of the two grub screws 19, which are then screwed from both sides through the holes 13 in the middle part 2, the wall of the pivot tube 15 is penetrated by its holes 25 and the grub screws then act with their tips on the nipple 24 and secure the lower nozzle head 20th and connect him safely with the pivot tube 15. Nevertheless, the pivot tube 15 remains pivotally with its nozzle head 16 together with the nozzle head 20 in the bore 14 in the middle part 2 back and forth. The nozzle head 20 has a radial bore 21 which receives a cleaning nozzle 22 in the form of a grub screw with a through bore and internal hexagon. On the top of the nozzle head 20, which is not visible here, a further cleaning nozzle is arranged obliquely. On the front of the pipe cleaning nozzle body of the front part 3 is placed and then bolted by means of the mounting screw 5 with the bolt 6 firmly. The mounting screw 5 is equipped at its rounded head with an internal hexagon.

In Figure 2, this pipe cleaning nozzle body is shown in the assembled state, in a view on its longitudinal side. From the left you can see first the rear part 1 with its projecting edge 57, then the middle part 2, followed by the front part 3 with the head of the mounting screw 5. Transverse to the longitudinal axis 4 of the entire nozzle body is the pivot tube with his head 16 and in this Head 16 obliquely inserted cleaning nozzle 18 visible, and on the opposite side of the central part 2 can be seen there the nozzle head 20 with the radially arranged Abreinigungsdüse 22nd

[001 1] FIG. 3 shows this pipe cleaning nozzle body assembled in a view on the longitudinal side, but now viewed from above, that is to say rotated in relation to the illustration in Figure 2 by 90 ° about the axis 4 against the viewer. You can see the head 16 of the pivot tube seen from above, this here in two maximum pivoting positions is shown, once rotated with bold drawing line maximum clockwise and once rotated with a thin drawing line maximum counterclockwise. In this head 16 not only an obliquely upwardly directed cleaning nozzle 18 is installed, but also another Abreinigungsdüse 27, which emerges radially. The pivoting range of this nozzle 27 is as shown here 30 °, but may also be more or less depending on the design. Also, the lower nozzle head, although not visible here, also has an additional cleaning nozzle, which is arranged obliquely in the same. Depending on the current pivot position of the pivot tube and the position of the entire nozzle body in a pipe to be cleaned, one or the other recoil dominates and accordingly, the pivot tube 15 is pivoted. The threaded pins 12 not only ensure that the middle part 2 is not pivotable relative to the rear part 1 and front part 3 of the nozzle body, but they also determine the pivoting range of the pivot tube 15 and its nozzle heads 16,20 in the middle part 2. Depending on how far this Threaded pins 12 are screwed into the rear part 1 and according to how far they protrude beyond the central part 2, they limit the pivoting range of the nozzle heads 16,20 on the central part 2. The nozzle head 16 is as you can see here equipped with a lateral control surface 28. When swiveling, this control surface 28 is guided slightly along the tip of the threaded pins 12 used. Depending on how far the setscrews 12 are screwed, the pivoting range of the pivot tube 15 and its nozzle head 16 and 20 is more or less severely limited by then the control surface 28 when pivoting the nozzle head 16 in each pivot direction sooner or later a stop at the top located there threaded pin 12 finds. Due to the pivoting of the nozzle head 16 and of the opposite nozzle head 20, the water pressure jets from all these cleaning nozzles 18, 27, 22 each cover new areas and, overall, they cover all tube inner wall areas in an irregular pattern in practical application. This leads to a very efficient and comprehensive cleaning of the pipe inner wall.

4 shows a longitudinal section through this pipe cleaning Nozzle body. One recognizes the threaded bore 8 in the rear part 1 of the nozzle body, the continuation of this bore in the bolt 6, and its radial holes 1 1 in the tapered central region, as well as the Mitteilteil 2 of the nozzle body and the front part 3 with the mounting screw 5, which in the Inside the bolt 6 is screwed and holds the entire nozzle body together.

5 shows a pipe cleaning nozzle body in another embodiment to achieve the same technical aim, namely with at least two in different levels by virtue of the water pressure rotating parts with at least one further jet nozzle to inject a jet of water on the pipe inner wall, so that each point can be acted upon at a pipe inner wall to be cleaned off. For this purpose, two counter-rotating parts, which are interconnected by toothing, are provided in the form of jet wheels 32 for additional cleaning nozzles 36. The rear part 29 of the nozzle body is in turn equipped with a threaded hole 8 for connection to the nipple of a water pressure hose, and this rear part 29 extends here in one piece until the front end of the nozzle body, where a stationary gear 34 is seated. This is fastened by means of a cover screw 38 with a rounded screw head and hexagon socket 58. The bore 8 is continuous, although tapered further forward and it forms a cross in the interior, that is, an axis 30 of the bore 8 continues to the front tip of the nozzle body, and a bore with transverse axis 31 leads to two each about this transverse axis rotatable nozzle wheels 32, whose inner outer edge has a toothing 33 which engages in the central stationary gear 34. These nozzle wheels 32 are mounted with the hexagon screws 39 on the nozzle body. In the peripheral wall of the nozzle wheels 32 nozzles 36 are installed, including radial blind holes 37 are introduced into these nozzle wheels 32. The nozzles 36 are formed by nozzle balls 35, which are inserted into these blind holes 37, wherein in each of these nozzle balls 35 a diametral bore is introduced, which forms the actual nozzle 36. These nozzle balls 35 can be inserted into the blind holes 37 in the nozzle wheels 32 in different pivotal positions, so that they eject water jets 32 at different angles from the surface of the nozzle wheels 32, that is, not only in the radial direction. Rather, these can Nozzles 36 are aligned in any directions in an all-round pivoting range of about 90 °. The pivotal positions of the nozzle balls 35 are selected so that the recoil forces of the water jets of one nozzle wheel 32 are greater than those of the other. As a result, a torque is generated which causes the two nozzle wheels 32 to rotate about their axes 31. But as soon as such a rotation takes place, the nozzle wheels 32 are also rotated in total about the axis 30 lying between them in rotation, because the serrations 33 are toothed at their inner outer edges with the stationary gear 34. They rotate in opposite directions to each other and at the same time about the axis 30 and overall an irregular and practically comprehensive cleaning of an adjacent pipe inner wall is achieved.

Figure 6 shows this pipe cleaning nozzle body seen in a view from above on the long side. It can be seen the sleeve of the nozzle body 29 with its threaded hole 8 for the pressure water hose to be connected, and then subsequently the forward extension of the nozzle body, the front carries the stationary gear 34 which is fixed with a cover screw 38. The two nozzle wheels 32 on the one hand rotatable about the axis 31, but in total also rotatable about the central axis 30 on the nozzle body, and its inner outer edge has a toothing 33 which cooperates with the gear 34. The nozzle balls 35 are secured in the blind holes 37 by means of a holder 40 with external thread. The two holes 41 in this holder 40 serve to tighten the same by means of a tool.

In Figure 7, this pipe cleaning nozzle body is shown in a section along the line BB in Figure 6 and therefore seen in the direction of the bore 8. In this figure, therefore, one recognizes the bore 8 in the longitudinal axis 30 as a central hole. The nozzle body here forms two cylindrical arms 42 which extend along the transverse axis 31 and are thus directed in the image up and down, and on which the nozzle wheels 32 are placed and secured with a hex screw 39 thereon. The two cylindrical arms 42 are centrally or axially penetrated by the transverse bore 31, and starting from the bottom of the blind holes are continuing Holes 59 guided in the transverse bore 31. In the blind holes 37 then hollow cylindrical rubber supports 60 are used, and then the nozzle balls 35 with their diametrical holes. The nozzle balls 35 are secured with brackets 40 which have an external thread which fits into a thread in the blind bore 37 and clamp when screwing the nozzle balls 35 along a ring in position. These brackets 40 have on their outer side two small holes 41, in which can be intervened with a special tool to tighten the brackets 40. First, however, a pin is inserted into the diametric bore and thus into the nozzle 36 in the nozzle ball 35 and its pivotal position is set in the blind hole 37 as desired. Then, the holder 40 is tightened and secured the nozzle ball 35 in this pivotal position. By loosening the holder 40, the nozzle ball 35 and thus the nozzle 36 can later be changed at any time in its adjustment position, as required.

FIG. 8 shows a further variant of a pipe cleaning nozzle body with a worm gear for rotating the middle part 46 for the additional cleaning nozzles. Here, the nozzle body consists of a rear part 43 which contains the obliquely angled rearwardly directed recoil nozzles 7 and front a pin 44 which has a taper 62 in the central region and in this also provided with radial holes 63. Outside around its circumference in the region of the taper 62, a round toothing 45 extends as part of a worm gear. On this bolt 44 of the middle part 46 is placed, in which a laterally offset through bore 56 is introduced. The middle part 46 is secured at the front with the front part 47 with a rounded front and the mounting screw 48 with screw head 49 with hexagon socket. In the laterally offset bore 56 at the middle part 46, a hollow cylinder 50 is inserted with radial bores 52 in its two end regions. This hollow cylinder 50 is made somewhat thicker to about two thirds of its length and in the central region of the hollow cylinder 50 is a worm thread 51. Thus, the hollow cylinder 50 can be screwed into the bore 56, because then the worm thread 51 with the round teeth 45 on the bolt 44 cooperates. On the ends of the hollow cylinder 50, the nozzle heads 53 are then placed and from the outside by means of the mounting screws 55 bolted to the hollow cylinder 50. In the nozzle heads 53, the actual nozzles 54 can be screwed in the form of grub screws with hexagon and axial bore for the water jet. However, the blind bores 61 with internal threads provided for this purpose are not introduced radially into the nozzle heads 53, but rather in a direction deviating from the radial direction, as can be readily seen from the nozzle body at the top in FIG. The exiting water jet generated with its recoil a torque on the nozzle body 53 and thus also on the hollow cylinder 50. The nozzle body 53, which is mounted at the opposite end of the hollow cylinder 50, a similar torque in the same direction or by installing the nozzle 54 in In a different direction, it can act as a brake nozzle. This can be placed in the nozzle body 53 at an angle such that a desired torque on the hollow cylinder results in cooperation with the nozzle 54 at the other end of the hollow cylinder. As a result, the hollow cylinder 50 is rotated in the central part 46 in rotation and because it can not move axially, but its worm thread 51 is in engagement with the round teeth 45 on the bolt 44 and thus forms a worm gear, the entire central portion 46 in a Rotation offset by the bolt 44. The rotational speed depends on the selected torque. Overall, it is achieved that the exiting water jets rotate in two different levels at the desired speed and thus irregularly cover virtually every point of a cleaned off inner wall of the pipe.

Figure 9 shows a special screw drive of the middle part 46 on the bolt 44. In the embodiment shown here, two hollow cylinders 50 are present, the laterally offset the middle part 46 enforce. They therefore act with their external threads 51 as a screw of one side on the round teeth 45 on the bolt 44, so that as shown a double worm gear is formed. In the embodiment of Figure 8, however, only a single hollow cylinder with worm thread is present.

FIG. 10 shows the pipe cleaning nozzle body according to FIG. 8 in a view from above onto the side. One recognizes the laterally offset arrangement of Nozzle head 53 on the hollow cylinder, which passes through the middle part 46, as well as the differently used from the radials of the nozzle head 53 in the same nozzles 54 for generating a torque on the nozzle head 53 and the hollow cylinder mounted thereon. The nozzle head 53 is secured by means of the fastening screw 55 on the hollow cylinder.

In Figure 1 1 of the pipe cleaning nozzle body according to Figures 8 and 10 is shown in a longitudinal section, namely along the line A-A in Figure 10. It can be seen the threaded hole 8 in the rear part 43 for screwing the nozzle body to a pressurized water hose. In this rear part 43, the holes for the recoil nozzles 7 are introduced. The rear part 46 leads into the bolt 44 with the round teeth 45. About the bolt 44 of the middle part 46 is inserted, which has one or two laterally offset holes in which the hollow cylinder 50 stuck and end the nozzle heads 53 with the oblique angle to the radial therein arranged nozzles 54 carry. Front of the front part 47 is attached and screwed with the mounting screw 48 with screw head 49 with the bolt 44.

Figure 12 shows another variant of a pipe cleaning nozzle body, the middle part 46 has two laterally offset, in the example shown at an angle of 90 ° to each other extending holes. As a difference angle, however, another angle measure can be selected. In this hollow cylinder 50 are used, which have a taper 62 in the central region and in this taper 62 a plurality of radial bores 52 are introduced. In contrast to the variants of Figures 8 to 1 1, these hollow cylinders are not equipped here with threads. They are freely rotatable in the middle part 46 and carry at each end a nozzle head 53 with an oblique angle to the radial built-in nozzle 54. By the exiting water jets, the nozzle heads 53 and with them the hollow cylinder 50 are rotated. The water supply is ensured by the central bore 8 in the nozzle body and the radial bores 52 in the taper 62 of the hollow cylinder 50. The middle part 46 may be rigidly bolted to the rear part 43 and the front part 47, or else the nozzle body may be designed so that the middle part 46 with respect to the rear part 43 and front part 46 on a common axis of rotation is designed to rotate freely. In this case, the nozzle heads 53 rotate with their nozzles 54 about their own axis, and at the same time rotates the central portion 46, which carries these nozzle heads 53. Overall, so four Wasserstahlen arise with respect to the entire nozzle body irregularly exiting in different directions water jets, so that a nationwide cleaning of a pipe inner wall is achieved.

The figure 13 shows this pipe cleaning nozzle body still seen in a view from the side on the long side, with dashed inner parts, and the figure 14 shows the same in a rotated by 90 ° about the longitudinal axis view on the longitudinal side. The nozzles enclose a spray angle of 120 ° during the rotation of the nozzle head. Of course, the nozzles can also be installed with a steeper or shallower angle in the nozzle head.

Shows a pipe cleaning nozzle body with a central portion 64 which can oscillate back and forth in the axial direction. This central part 64 is inserted with its central axial bore on the bolt 6 on the rear part 1. This bolt 6 has radial bores 11, which lead into radial bores in this central part 64. From the outside blind bores 37 are introduced into the central part 64, in which nozzle balls 35 are inserted with diametral holes and secured in a certain pivot position, in the same manner as already described to Figure 5 to 6. As a special feature, this central part 64 can oscillate back and forth along the bolt 6, ie in the axial direction, over a certain play. Between the rear part 1 and the rear, perpendicular to the pin axis extending end face 69 of the central portion 64, a compression spring 66 is installed. The front end face 65 of the central part 64 is here made flat, but with respect to the pin axis, this end face 65 is not directed vertically, but slightly inclined to the vertical. The front part 1 of the nozzle body with its flat, perpendicular to the pin axis rear end face 70 is secured by a mounting screw 5 on the bolt 6. In this end face 70, a blind bore 71 is introduced, in which a compression spring 67 which carries at its front end a rotatably mounted on her ball 68 as a bearing. On the inclined front, flat end face 65 of the central portion 64, this ball 68 can roll and If the pressurized water exits through the nozzles 36 in an oblique direction to the radial and thereby exerts a torque on the central part 64 as a reaction force, this central part 64 becomes around the bolt 6 set in rotation. Because of the oblique angle to the bolt axis extending front end surface 65, the ball 68 exerts with its compression spring 68 a continuously changing force on this end face 65 and accordingly, the middle piece 64 is pressed more or less against the pressure spring 66 arranged on the other side. Instead of a flat, obliquely directed to the bolt axis 6 end face 65, this can also be performed wavy, so that the ball 68 then moves over the individual waves while the end face 65 more or less strongly pressurized and thus the pendulum motion of the middle part 64 is generated. As a result, the center part 64, which rotates about the pin axis due to the escaping water, is additionally displaced in a movement oscillating back and forth along the pin axis. The result is that the inner pipe wall is thoroughly cleaned because the water jets paint over each piece of the pipe inner wall.

FIG. 16 shows a pipe cleaning nozzle body with an alternative middle part 72, which can oscillate back and forth in the axial direction. This middle part 72 is supported via a compression spring 73 on the front part 3 of the nozzle body. In this central part 72 sits a screwed in radially screw 74. The head of this screw 74 is designed as a mounted roller 75 which can rotate about the screw axis. A sleeve 76 is pushed over the rear part 1 of the nozzle body and secured by means of a grub screw 77 on the rear part. This sleeve 76 is cut at an angle obliquely to the sleeve axis at its front end. As a result, it forms, with its front sleeve edge, a guide surface 78 on which the roller 75 rolls. Due to the force of the compression spring 73 of the central part 72 is constantly pressed with the roller 75 against this guide surface 78. In the Mitteilteil 72 some nozzles are now arranged, as described already to the already presented variants of the middle part, which spray differently from the radial from the middle part of pressurized water, which in a known manner via holes from the central bore in the rear part 1 in the interior of the central portion 72nd arrives. As a result, however, a torque is exerted on the central part as a result of the recoil of the escaping water. But as soon as the Center part 72 rotates, it is forced by the rolling of the roller 75 along the guide surface 78 in a pendulum motion along its axis of rotation.

17 shows a similar pipe cleaning nozzle body with also a middle part 79, which can oscillate in the axial direction back and forth. However, the drive for the pendulum movement of this middle part 79 takes place differently in this embodiment. To generate the pendulum motion here is a guide groove 80 is milled into the outer side of the bolt 6, which forms a serpentine line around the circumference of the bolt 6. Through the middle part 79, a radial threaded bore 81 is then introduced, in which a threaded pin 82 is screwed, which projects into this guide groove 80. If the middle part 79 is set in rotation by the exiting water jets, then a pendulum motion is imposed on it because the threaded pin 82 is guided in the guide groove 80.

FIG. 18 shows a pipe cleaning nozzle body with nozzles 84 positioned in a bevel gear 83, this nozzle body being shown in a longitudinal section. At the front end of the bolt 85 sits a large bevel gear 86, the larger circumference coincides with the circumference of the nozzle body 87. At the front end of the bolt 85, a cross tube 88 is mounted, wherein the interior of the bolt 85 communicates through a bore with the interior of this cross tube 88. The pressurized water supplied from the rear of the bolt 85 flows into the cross tube 88. At its one end, it is closed by a screw 89, in whose head at least one nozzle 90 is installed, so that the water in a deviating from the axis of the cross tube 88 direction spouting. This creates a torque which causes the cross tube 88 to rotate generally about the axis of the bolt 85. At the opposite end of the cross tube 88 but this is now equipped with a smaller bevel gear 83 which rotatably supported on the cross tube end, and this bevel gear 83 is in engagement with the large bevel gear 86. When the cross tube 88 is rotated about the bolt 85 as a whole , his bevel gear 83 rolls on the large bevel gear 86, and accordingly, the bevel gear 83 must rotate. In this bevel gear 83 two holes are introduced here, which act as nozzles 84. This end of the cross tube 88 thus rotates along the nozzle body circumference, and at the same time rotates Bevel gear 83 about its own axis. The water jets emerging from its nozzles 84 perform two superimposed rotational movements, which results in the water jets sweeping the inner surface of the pipe to be cleaned off completely.

Figure 19 shows this nozzle body construction in a perspective view to make the function even more understandable. The cross tube 88 is thus seated on the bolt 85 and rotates on the same total, similar to a propeller, driven by the rear end of the cross tube 88, because there eject the nozzles 90, the water in a direction deviating from the transverse tube axis. On the here front end of the cross tube 88 which is opposite the cross tube 88 rotatable bevel gear 83 sits with its oblique angle to the bevel gear built-in nozzles 84. When the cross tube 88 rotates, the bevel gear 83 rolls on the larger bevel gear 86 and there are precessing water jets, with two superimposed rotational movements.

Finally, FIG. 20 shows an additional device for a pipe cleaning nozzle body when it is to be used for clearing cleaned material in a pipe, and the entire water pressure is to be used alone for clearing away. For this case, a cover sleeve 91 is pushed over the entire nozzle body, so that it forms a strait space 81 for the laterally exiting nozzles and thus they are inactive. This cover sleeve 80 is secured to the nozzle body with one or more radial grub screws 82. Such a cover sleeve 80 can be adapted to each nozzle body construction and put on, so that the effect of the actual cleaning nozzles is inhibited and only the recoil nozzles are effective. But then the nozzle body can be used excellently to herauszuspritzen cleaned off and lying at the bottom of pipes over the back by pulling the nozzle body initially far into the tube, and then slowly pulling it out of the tube at the pressure hose, while the recoil nozzles the overburden flush out of the pipe to the rear. FIG. 21 shows a further pipe cleaning nozzle body for cleaning. He also generates several water jets, which rotate around several planes of rotation. The center piece 93 can rotate about the central axis 94. In this center piece 93, a tube 95 is mounted, which can rotate about its own axis 96. At its ends nozzles 97 are used, which extend at an angle to the tube axis 96, and also emerge obliquely, that is inclined relative to a tangent to the axis of rotation 96. As a result, the tube 95 is set in rotation about its own axis 96 when the water jets exit due to the reaction forces. The tube 95 also rotates about the central axis 94. This overlaps two planes of rotation and the water jets reach each point of the inner wall of a pipe to be cleaned off.

The most important thing about all these embodiments is that the water jets rotate with respect to the pipe cleaning nozzle body, and in particular two planes of rotation of the nozzle heads are superimposed, or that the one rotation another movement, for example, a pendulum motion is superimposed , So that an irregular application of a pipe inner wall is achieved, and the rays cover virtually every area on the inside of the pipe.

Claims

claims

1. Pipe cleaning nozzle body for connection to the end of a water pressure hose for the cleaning of buried or concreted sewage pipes or channels, with rearwardly directed nozzles (7) for generating a return jet and thrust on the pipe cleaning nozzle body for its insertion into a pipe to be cleaned , and at least one part (16, 20, 32, 53, 72, 79, 83,) which can be moved back and forth in relation to the nozzle body on the same in at least two different planes overlapping one another by virtue of the water pressure each with at least one further cleaning nozzle (18, 36, 54, 84).

2. Pipe cleaning nozzle head for connection to the end of a water pressure hose for the cleaning of buried or concreted sewage pipes or channels according to claim 1, characterized in that the at least one with respect to the nozzle body on the same in at least two different levels by virtue of the water pressure and movable part (72) is realized by a cylindrical rotatable central part (72) on the nozzle body via a compression spring (73) on the front part (3) of the nozzle body is supported, this central part (72) with nozzles (36) is provided are aligned differently from its radials, and a screw (74) radially screwed in from the outside is inserted in this middle part (72), the head of which is designed as a supported roller (75) which is rotatable about the screw axis and over the rear part (1). of the nozzle body, a sleeve (76) is pushed and secured by a grub screw (77) on the rear part, said Hü Is cut off (76) at its front end obliquely to the sleeve axis, so that it forms a guide surface (78) for the roller (75).

3. Pipe cleaning nozzle body for connection to the end of a water pressure hose for the cleaning of buried or concreted Sewer pipes or channels according to claim 1, characterized in that the at least one with respect to the nozzle body at the same in at least two different planes by virtue of the water pressure reciprocable part (64) is realized by the nozzle body on a central pin (6 a cylindrical central part (64) is rotatably mounted, which is rotatable both axially reciprocally with respect to the nozzle body as well as about the nozzle body axis, wherein the central part (64) on a front side (69) spring-loaded on the nozzle body is supported and the another end face (65) is oblique to the axis or is corrugated, wherein it is supported roller bearings via a spring-loaded ball (68) on the front part (3) of the nozzle body.

Pipe cleaning nozzle body for connection to the end of a water pressure hose for the cleaning of buried or concreted sewage pipes or channels according to claim 1, characterized in that the at least one with respect to the nozzle body on the same in at least two different levels by virtue of the water pressure back and forth movable part (79) is realized by a cylindrical central part (79) is mounted on the nozzle body on a central pin (6) which is rotatable both axially reciprocally with respect to the nozzle body and about the nozzle body axis, wherein the central part (79) carries a threaded pin (82) screwed in on its outside, the tip of which projects into a serpentine, milled guide groove (80) in the outside of the bolt (6) and, on rotation of the middle part (79) on the bolt (6), and forces Her-movement along the axis of the bolt (6).

Pipe cleaning nozzle head for connection to the end of a water pressure hose for the cleaning of buried or concreted sewage pipes or channels according to claim 1, characterized in that the at least one with respect to the nozzle body on the same in at least two different levels by virtue of the water pressure back and forth movable part (16,20) is realized by the nozzle body from a rear part (1) with recoil nozzles (7) and forwardly projecting pin (6) with an axial bore and thus communicating radial bores (1 1) in a tapered region (10), as well as an inserted thereon center part (2) with transverse bore (14) which communicates with the holes (1 1) in the bolt (6) and with in the transverse bore (14) built mushroom - shaped pivot tube (15) in the Transverse axis lying slot (23), which slot (23) from the bolt (6) is penetrated, wherein the pivot tube (15) on the outside of the central part (2) fitting a nozzle head (16) with an obliquely upwardly directed cleaning nozzle (18) and on its opposite side a nozzle head (20) with radially directed nozzle (22) is attached, and that a side surface of the nozzle heads (16,20) as a control surface (28) is designed to limit the pivoting ranges of the nozzle heads (16 , 20) by means of threaded pins (12) which protrude from the rear part (1) and for the control surfaces (28) each form a stop for limiting the pivoting range.

Pipe cleaning nozzle head for connection to the end of a water pressure hose for the cleaning of buried or concreted sewage pipes or channels according to claim 1, characterized in that the at least one with respect to the nozzle body at the same in at least two different planes by virtue of the water pressure rotating part ( 32) is realized by the nozzle body on a relative to its rear part (29) about its longitudinal axis (30) rotatable hollow cylinder two at right angles to the longitudinal axis (30) extending, cylindrical arms (42) which via axial bores (31) with the bore (8) in the rear part (29) communicate, and which arms (42) each carry a nozzle wheel (32) as an axis, said nozzle wheels (32) at its outer inner edge of a toothing (33) which with a at the front of rotatable hollow cylinder (42) arranged, stationary to him gear (34) cooperate, wherein the cleaning nozzles (36) with different exit angles are built into the peripheral wall of the nozzle wheels (32), so that due to the repulsive forces of the exiting water jets, the nozzle wheels (32) set in rotation and thereby also about the axis (30) of the gear (34) are jointly rotatable.

Pipe cleaning nozzle head for connecting to the end of a Water pressure hose for the cleaning of buried or cast-in sewage pipes or channels according to claim 1, characterized in that the at least one with respect to the nozzle body on the same in at least two different planes by virtue of the water pressure rotating part (53) are realized by the rear part ( 43) of the nozzle body to the front in a hollow bolt (44) expires, which has a taper (62) with circumferential toothing (45) and therein radial bores (63), said about this bolt (44) has a central part (46) with laterally offset hole (56) is slipped, and in this bore (56) has a hollow cylinder (50) is inserted with radial end holes in the radial direction (52), which hollow cylinder (50) in the central region of a screw thread (51) which engages with the toothing (45) on the bolt (44), and that this hollow cylinder (50) at both ends of a nozzle head (53) obliquely to the radial of the nozzle opfes (53) arranged Abreinigungsdüsen (54) carries, so that the recoil of the water jets exiting there exerts a torque on the hollow cylinder (50), and by the rotation of the acting worm gear and the middle part (46) is set in rotation.

8. Pipe cleaning nozzle head for connection to the end of a water pressure hose for the cleaning of buried or concreted sewage pipes or channels according to claim 1, characterized in that the at least one with respect to the nozzle body on the same in at least two different planes by virtue of the water pressure rotating Part (53) are realized by the rear part (43) of the nozzle body forwards in a hollow bolt (44) expires, which has a taper (62) with circumferential toothing (45) and therein radial bores (63), wherein on this Bolt (44) has a central part (46) with two laterally offset, mutually parallel bores (56) is slipped, and in these bores (56) each having a hollow cylinder (50) is inserted in the end radial bores (52), which hollow cylinder (50) in the central region each have a worm thread (51), which in lateral engagement with the toothing (45) at between the two hollow cylinders (50) extending bolt (44) is, and that these hollow cylinder (50) at both ends each have a nozzle head (53) with obliquely to the radial of the nozzle head (53) arranged Abreinigungsdüsen (54) wear, so that the recoil of the water jets exiting there exerts a torque on the corresponding hollow cylinder (50), and by the rotation the two hollow cylinder (50) by virtue of the acting double worm gear and the middle part (46) is set in rotation.

Pipe cleaning nozzle head for connection to the end of a water pressure hose for the cleaning of buried or concreted sewage pipes or channels according to claim 1, characterized in that the at least one with respect to the nozzle body at the same in at least two different planes by virtue of the water pressure rotating parts ( 53) are realized by the rear part (43) of the nozzle body to the front in a central part (46) expires, which is provided with two laterally offset transverse bores (57) having a different direction, wherein in these transverse bores (57) each one Hollow cylinder (50) inserted in the central region has a taper (62) with radial bores (52), and these hollow cylinder (50) both ends a nozzle head (53), each nozzle head (53) has at least one nozzle (54) , which is aligned differently from the radial of the nozzle head (53), with a nozzle (54) as a Leitdüse and the their as a brake nozzle, so that the recoil forces of the exiting water jets exert a resultant torque on the corresponding hollow cylinder (50) and make them rotate.

0. Pipe cleaning nozzle head for connection to the end of a water pressure hose for the cleaning of buried or concreted sewage pipes or channels according to claim 1, characterized in that the at least one, with respect to the nozzle body on the same in at least two different levels by virtue of the water pressure rotating part (83) are realized by a bevel gear (86) sits at the front end of a central bolt (85) whose larger circumference coincides with the circumference of the nozzle body (87), and at the front end of this bolt (85) has a cross tube (85). 88) is attached, wherein the interior of the bolt (85) communicates through a bore with the interior of this cross tube (88), and that at the rear end of the cross tube (88) has a screw (89) with at least one nozzle (90) with one of the Axis of the cross tube (88) deviating nozzle axis is installed in the screw head, and at the front end of the cross tube (88) a bevel gear (83) is rotatably mounted, which is in engagement with the large bevel gear (86) and rolls on it, wherein the bevel gear (83) is arranged at an angle to its axis of rotation arranged nozzles (84).

1 1. Pipe cleaning nozzle head for connection to the end of a water pressure hose for the cleaning of buried or concreted sewage pipes or channels according to one of the preceding claims, characterized in that the nozzles (7,54) are designed as grub screws with hexagon Allen, which has a central have axial bore for forming the actual nozzle and in a nozzle head (16,53) are screwed.

12. Pipe cleaning nozzle body for connection to the end of a water pressure hose for the cleaning of buried or concreted sewage pipes or channels according to one of claims 1 to 10, characterized in that the nozzles as nozzle balls (35) with diametrical bore to form the actual nozzle (36) are executed, which nozzle balls (35) in blind bores (37) are used, in which they rest against rotation on a rubber bearing (60), and from the outside by means of a holder (40) with external thread in the blind bore (37) are braced ,

13. Pipe cleaning nozzle body for connection to the end of a water pressure hose for the cleaning of buried or concreted sewage pipes or channels according to one of the preceding claims, characterized in that a covering sleeve (91) is sealingly slidable over the nozzle body and on this by means of a grub screw (92) is securable, wherein the cover sleeve (91) on its inside a dense Storage space forms, so that the rotating part arranged cleaning nozzles are ineffective.

Pipe cleaning nozzle body for connection to the end of a water pressure hose for the cleaning of buried or concreted sewage pipes or channels according to one of the preceding claims, characterized in that the nozzle body includes a tube (95) which is perpendicular to the central axis (94) of the nozzle body is disposed and is also rotatably mounted about its own axis (96), and which at its two ends at right angles to the tube axis extending nozzles (97) which are inclined against a tangent with respect to the tube axis, so that they are activated upon recoil forces set the tube (95) in rotation.