FI80929C - The stormwater drain - Google Patents

Description

80929 RAINWATER

the storm drain

The invention relates to the locking of the joints of a rainwater well to be assembled from parts or a corresponding sewage or sewer well. The rainwater well comprises a sleeve-shaped vertical pipe, the upper end of which has a lid fixed by means of a collar part, and the lower end of which is directly or indirectly connected to at least one vertical pipe with a vertical pipe having a substantially horizontal outlet pipe. The joints between the parts can be locked and unlocked repeatedly.

Currently used and available rainwater ivy or sewage or sewer wells, respectively, are usually made of either metal or plastic by casting (with the exception, of course, of traditional concrete wells). Such films are usually uniform cylindrical or tubular bodies closed at the lower end at the bottom. The connections of the outlet pipe to such rainwater wells and the like are usually already made at the factory, as a result of which the customer has to determine the directions and heights of the outlet pipes when ordering the wells. However, this is unnecessarily a limiting factor when determining the final location of a rainwater well. It is often observed during the installation phase that the outlet pipes are not located at the desired location or that there are too few outlets in the well. In this case, during the installation phase, additional holes have to be made in the wells by drilling and then sealing these holes in the outlet pipes.

The applicant's earlier Finnish publication 73282 discloses a rainwater well or the like which is assembled from parts, the bottom part of which and any cylindrical interconnected intermediate parts connected to it can be rotated to any position with respect to the vertical axis of the well and the connections between parts can be opened.

Em. In the solution according to the publication, unintentional opening of the joint takes place easily, especially if the parts of the well under bending are placed in a slightly oblique mutual angular position, whereby the joint opens at some point starting from the circumference of the cylinder.

5 Making post-connections to wells on site is often cumbersome and also time consuming. In addition, the desired heights of the wells have to be determined in advance for each application, since the wells are usually made of a single unitary cylindrical body. If the well is found to be too high in the installation-10 step, it can of course be cut off, e.g. by sawing. On the other hand, if it is found on the site that the well is too shallow, it will naturally have to be continued, which is already a much more difficult operation.

It is an object of the present invention to provide a new type of rainwater well which does not have the disadvantages described above. To achieve this, the invention is characterized by what is stated in the characterizing part of claim 1.

20

The main advantages of the invention are that the directions and heights of the outlet pipes of the rainwater drain can be freely chosen. The parts of the rainwater well to be connected to each other can be locked together reliably, which makes the handling of the well assembly easy. The joints between the parts of the rainwater drain do not open when handling the well, nor when connecting the pipe joints. The possibility to open the locks facilitates changes to the rainwater well at the installation site. In addition, the locations of the outlet pipes can be freely chosen in the solution according to the invention and their heights and directions can be easily changed as required.

In the following, the invention will be explained in detail with reference to the accompanying drawings.

Figure 1 shows an embodiment of a rainwater well.

Figures 2 and 3 show a pipe joint in a sectional view.

Figure 4 shows a lockable pipe connection at the locking members.

li 3 80929

Figure 1 shows an embodiment of a rainwater well according to the invention. The rainwater well consists of detachable parts, the top of which is a collar part (5), on top of which a manhole cover (not shown in Fig. 5a) is to be installed. The collar part (5) is connected by a lockable and detachable connection to a vertical pipe (4) comprising a pipe connection (6). The locking between the collar (5) and the vertical tube (4) is shown in a partial enlargement. The locking latch consists of an arm (9) connected to the collar part (5), the lower end of which has a locking claw 10 (12), which is released from the locking position by twisting the locking claw (12) outwards from the strips (11). The vertical pipe (4) is fastened from the shoulder (7) to a vertical pipe (3) with a pipe connection (6) with locking latches (8), which is also connected to the straight vertical pipe (2). All of the above connections are controlled and sealed by means of a cone (10). The bottom of the rainwater well (1) is equipped with a pipe connection (6).

Figures 2 and 3 show a section of a pipe joint in which the pipe (2) to be inserted into the pipe (1) is provided with a guide-20 part (13) resting on the surface (14) of the pipe (1) and a conical sealing part (10) together with the corresponding conical surface (7) of the pipe (1) provides a tight connection. In addition, the conical profile part (10) is utilized in locking the joint, since when the pipe (1) is pushed to the corresponding point (7) of the joint, a locking effect is obtained between the cylindrical pipe sections (1) and (2) against direct pull-out. The lock can be opened with sufficient traction. The connection (7, 10) is provided with a cylindrical extension (13) in the inner tube and a corresponding shape (14) in the outer tube, which abut when the connection is closed and cause a support effect on the pipe parts (1) and (2) so that the parts Putting (1) and (2) in a mutual angular position becomes considerably more difficult. In this case, the unintentional opening of the joint is also decisively reduced at the installation site, e.g. as a result of torsion or cranking caused by the pipes connected to the pipe joints (6).

Figure 4 shows the connection 4 of the pipes (2) and (3) 80929 in a sectional view from the direction λ-λ. The lower end of the pipe (2) is provided with a guide part (13) and a conical part (10) which seals the connection against the corresponding conical part (7) of the pipe (1). The connection is locked when the shoulder tip (12) of the locking part (8) locks behind the shoulder of the part (7). The locking part can be released from the shoulder of the part (7) by bending the locking part (8) outwards from the part (11) by pulling.

The locking members (8) or (9), which are most preferably two in the joint, prevent the joint from opening in a straight pull-out. However, the two locking members are not able to prevent the cylindrical parts from turning to the mutual angular position in all possible directions, which is why the joint must have a cylindrical guide part (13) to prevent the above-mentioned angular position and the consequent opening of the joint. The locking members (8) or (9) can be, for example, 4 pieces in an evenly spaced joint, which would prevent direct pull-out and prevent the rotation of adjacent cylindrical parts, but then the mold of the plastic part Further, as many hands as there are locking members would be required to open the joint, and thus two are the most preferred number. The guide part (13) in the overlap joint and the conical profile part (10) providing a locking effect also do not make the joint reliable, as it opens with a direct pull-out pull. Thus, the presence of both aspects of the invention, both the locking members and the cylindrical portion (13) guiding the overlap joint, is required to achieve the best effect.

In particular, it should be noted that the invention has been described above with reference to only one preferred embodiment thereof. However, it is in no way intended to limit the invention to this example only, but many modifications are possible within the scope of the inventive idea defined by the following claims.

Claims (7)

A rainwater well or similar sewage or sewer well comprising a cylindrical bottom (1) and a collar-shaped top (5), optionally with a lid, connected to each other by a detachable connection (7, 10) allowing the well to rotate about the vertical axis of the well, wherein the cylindrical parts (1) and (5) the edges overlap and in which the interlocking profile has a locking effect caused by changes in the diameter of the cylindrical parts, characterized in that the interlocking inner edge (10) comprises an extension (13) the outer edge (7) of the cylinder comprises a corresponding shape (14) at the corresponding point in the overlap joint, and which portion (13, 14) of the overlap joint prevents the joined cylindrical parts from turning to each other in an angular position and that the joint is provided with at least with two parts (1) and (5) with interlocking members (8) or (9) which can be opened. A rainwater well or the like according to claim 1, characterized in that the substantially cylindrical suction joint portion (13, 14) preventing the interconnected cylindrical parts from turning to the mutual angular position is at least one third of the entire length of the joint. Rainwater well or the like according to Claim 1 or 2, characterized in that one or more intermediate parts (2, 3, 4), possibly with joints (6), are connected between the lower part (1) and the upper part (5). which can be rotated freely with respect to their vertical axis to different angular positions. Rainwater well or the like according to Claim 3, characterized in that the overlapping joints (10, 7) are secured against direct pull-out by locking means (8) or (9) which lock and open. 6 80929 Rainwater well or the like according to one of Claims 1 to 4, characterized in that the connection (7, 10) of the cylindrical parts is secured by at least two locking elements (9) or (8) connected to the cylindrical part (2,3,4,5), the edge (10) of which is an inner part of the suction joint, and which locking member (8) or (9) comprises a resilient arm having a locking claw (12) at its end which, in the connecting position of the cylindrical parts, locks the cylindrical parts together when the locking nail (12) is tensioned 1 in the suction joint behind the corner cap profile formed in the edge part (7). 5 80929 Rainwater well or the like according to Claim 5, characterized in that the locking element (8), (9) can be disengaged from the tensioned locking position by means of gripping parts (11). Rainwater well or the like according to Claims 5 and 6, characterized in that the locking means (8) and (9) allow the cylindrical parts which they have locked in the locking position to rotate relative to one another with respect to the vertical axis of the rainwater well. Il 7 80929