DE2230886A1 - PUMPING SYSTEM, IN PARTICULAR FOR SEWAGE SYSTEMS - Google Patents

Description

The invention relates to a pumping system for collecting holes or Collecting basins and the like and in particular a pump unit, which are automatically connected to the open end of an outlet pipe after being lowered into the collecting hole can.

Collecting basins or collecting holes are usually found in sewage systems used, in which the runoff water must be temporarily stored before it is the Ilauptablaß of the sewage system is fed or raised to another level, to then a waste removal system for further processing to feed. Submersible pumps have long been used in these sanimel holes to remove the

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Aspirate water if necessary. To facilitate the inspection, repair and maintenance of these pumps it is advisable to remove them from the base of the collecting hole or To raise the collecting container or sump, so that the worker does not need to descend into the collecting hole itself. This requires that the pump can be automatically connected to an outlet pipe when it is being lowered, and that it can ■ automatically disconnects from the outlet pipe during lifting if necessary.

The object of the invention is »a pump system to create the aforementioned type for collecting holes, in which a pump unit when lowering and lifting can be coupled or uncoupled easily and effectively and with a seal. E3 is supposed to be a pump with automatic Connection device are created, which is particularly easy and cheap to manufacture, which is particularly reliable and durable in operation and which is easy to maintain.

The coupling and uncoupling of the pump should only be done by gravity and should not be due to your presence be affected by solid particles in wastewater or by relatively high viscosity.

The pump system according to the invention has a pump unit with a motor and with a pump outlet section. The pump unit can be pivoted on and along a vertical guide fixed in the collecting container Guide can be moved up and down. The pump unit takes it while lifting or lowering usually a tilt position determined by a stop. In this tilted position, the pump outlet comes when lowering the pump with the inlet of a fixed outlet pipe in the sump or collecting hole in contact and becomes

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due to their own downward gravity moved to the coupled position. The coupling or connection is quick, safe and complete automatic and does not require any manual actuation or external force except for those required for lifting the pump unit is required.

The invention is explained using an exemplary embodiment with reference to the accompanying drawings.

Figure 1 is a side view of a self-coupling pumping system according to the invention;

Figure 2 is a top plan view of the pumping system shown in Figure 1; and

Figures 3-5 are enlarged partial side and partial sectional views showing the connection of the pump nozzle with a receiving member according to the invention.

In Figures 1 and 2, a collecting hole with a pump Io according to the invention is shown. A pair of outlet pipes Ik extends in the vicinity of a basin or container 12 of the construction which is used for sewer systems and is intended to receive an overflow. Each of these outlet pipes has a curved inlet part 16 at the lower end, which is rotated 90 ° to the horizontal and is supported by a suitable frame 18 just above the floor. A vertically extending rail frame 2o is arranged at a distance from the inlet of each outlet pipe. The rail frame 2o carries a movable, submersible pump 22. According to FIGS. 1 and 2, the rail frame 1 is formed by a pair of vertically extending, parallel and spaced apart "it; uii ^r / -n, which at their lower ends in

2 0 9 * 82/0013

Ρ— "Ί791

Are anchored to the bottom of the pool or tank. At their upper ends, the rods are attached to the sides of the container opening in the region of the container opening with the aid of suitable struts, for example with the aid of a pair of right-angled bodies 2H. A displaceable holding body 26 for the pump 22 is held by the rails 2o and is movable along the same. The support body consists essentially of a rigid plate, the lugs or flanges 3o and 32 of which extend at right angles from positions near the side edges of the plate and near the upper and lower ends. From each flange another flange 3Ί extends at a right angle, which is arranged at a distance from the plate 28 and forms a channel with this. In this way, there are pairs of aligned channels or channel guides on both sides of the plate. When installed, the vertical rods or rails 20 fit into the channels 36 'so that the holding body is guided and held by the rails during upward and downward movement.

The submersible pump 22 is a self-contained unit which includes an upper motor section 38 and a lower pump section Ijo. The motor is fed via a cable that ends at the top of the pump. The lower pump section lo * has an inlet opening located in the middle Ί2 and an outlet nozzle ¹ J ¹ I of which extends in a conventional manner from a side of the pump; A bracket Ί6, which is formed from two protruding bracket parts, also extends from the pump section. A pin Ί8 runs through aligned bearings in the two bracket parts and is mounted on the lower flanges 32 at its opposite ends. A band-shaped holding body 52 is pivotable with a

-H-

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corresponding pin 5o connected, which in the upper Splashing 3o is stored. The holding body holds the pump when it tilts a predetermined amount. On the lower pivot 5o, or a chain 5'I is attached to the upper splash, which is connected to suitable lifting means (not shown) above the collecting hole.

According to Figure 3, the outlet nozzle '1 ¹ I of the pump cylindrical shape and is provided with an annular seal body 56th This sealing body can consist of a conventional O-ring which is inserted into an annular groove near the nozzle end. When the pump is detached from the lower end of the outlet pipe 1 * 1, it is held in a tilted position (for example 30 °) by the holding body 52. When the pump is lowered in this tilted position, the nozzle of the pump contacts an elongated lower portion 58 at the end of the outlet tube as shown in Figure k . After lowering the pump further, this lower part 58 holds the outlet nozzle M and causes the pump to rotate in its entirety about the pin Ί8. During this rotary movement, the outlet nozzle M moves into the inlet of the outlet tube, with the sealing body or sealing ring 56 sliding along the inner surface 60. When the pump is in the fully lowered position shown in FIG. 5, the outlet nozzle M is sufficiently within the inlet part 16.

In a collecting or water hole 12 of a sewage system, two pumps 22 and a pair of outlet pipes I ¹ J are usually used, as shown in FIGS. 1 and 2, in order to achieve the required capacity and reliable operation. When it becomes necessary to raise a pump for periodic maintenance or repair,

209882/0093 OHfQINAL INSPECTED

The pump can easily be detached from its connection by pulling the pump upwards along the rails. As mentioned above, the reconnection of the outlet nozzle M and the inlet part 16 is done solely by gravity when the pump pivots into its upright position at the bottom of the container or collecting basin. From the foregoing description it can be seen that the present invention provides a simple but effective construction which enables a pump to be automatically coupled to an outlet pipe within a collecting hole. The components required for this are relatively cheap to manufacture, are of durable construction, reliable in operation and easy to maintain.

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Claims (3)

Patent claims : . June 1972 .yPump system with a sump for receiving waste water or the like, characterized by a vertical guide (2o) which is fixed within the sump (12), a self-coupling pump in a submersible housing (38, ¹ Io) and an elongated outlet nozzle (*! * ») Connected to it, a holder (26) which can be pushed up and down along the vertical guide (2o), a device (32, Ί6, * J8) which ' the housing (38 »** °) pivotally connects to the holder so that the housing can be tilted relative to the holder and the guide, a stop device (52) which holds the housing in a tilted position, an outlet valve fixed inside the sump -ear (1 * 0, which has an elongated end part (l6) with a free inlet opening, so that the height of the nozzle ( ¹ IH) of the pump can be adjusted to the end part and can be coupled to it, so that when the submersible Gdiiuses in the sump to slide the outlet nozzle into the end part of the outlet pipe and engage it when the housing descends downwards and at the same time pivots upwards from its tilted position. 2. Pump system according to claim 1, characterized by an annular seal (56) provided at the end of the pump nozzle. 3. Pump system according to claim 1, characterized in that the elongated end part at the lower end of the outlet pipe haltv-cylindrical shape with the same curvature. H. Pump system according to Claim 1, characterized in that the holder (26) consists of a body (28) with projections along the opposite sides, the projections being channels (36) for receiving the vertical guide 209882/0093 (2o) form that a first pin (* l8) near the lower End of the body (28) with the pivotable, from Housing extending connecting device (Ί6) is connected, and that a second pin (5o) the holding body (52) near the top of the body (28). 2 0 9 P 3;: