DE102011107817A1 - Device for pumping liquids, has liquid pump which pumps liquid from area over one or more tubes or channels, where control unit is provided with pressure switch - Google Patents

Abstract

The device has a liquid pump which pumps the liquid from an area over one or more tubes or channels, where a control unit is provided with a pressure switch. The pressure switch is connected with a pressure container (5) over an air channel, where the pressure container is provided in a liquid collecting container (1). The air is compressed in the pressure container by raising the liquid level in the collecting container.

Description

Technical area

The present invention relates to a novel device for pumping out liquids, comprising at least one pump which via one or more hoses or ducts pumps off liquids from a region remote from the pump (hereinafter referred to as a liquid region), the device comprising at least one collecting container and a control unit includes, which ensures an automatic pumping of the liquid. In particular, but not exclusively, the present inventive device is used in an advantageous embodiment of the use as an automated shower drain device for the subsequent installation of ground-level or flush-mounted showers whose water drain has no or hardly any slope.

State of the art

Water pumps are devices for conveying or moving liquids, in particular water, wherein according to the invention all types of pumps can be used. Typical constructions here are the piston pump, the plunger pump, the Archimedean screw and centrifugal pumps in various designs.

Shower drains for floor-level or floor-level shower trays are well known in the art. In view of the requirements for barrier-free access to showers and shower cubicles, both in terms of a modern design as well as age- and disabled-friendly living, floor-level shower cubicles are generally used today. An outstanding problem is the subsequent conversion of an elevated shower tray to a floor-level shower drain, because often lacks the natural gradient to the water drain. In houses with several superimposed residential units, it is impossible to move the water drain into the floor below. In rooms without drainage, especially in basements, no conventional shower can be installed.

A drain device for producing a water drain embedded in a floor, in particular for producing a floor-level shower, with a grate, is from the DE 20 2005 017 965 U1 known. Out EP 215 9337 A2 moreover, a sequence for flush-mounted showers is known, which consists of a drain housing having a cup-shaped or cup-shaped, Anschlußstufzfreies bottom part, a laterally arranged connection piece and at its top an inlet opening, and a Tauschrohrelement, via the inlet opening in the drain housing can be used, defined with this an odor trap. The disadvantage of these devices is that the outlet still has to have a gradient from the connection stub, so that wastewater can drain off.

Moreover, devices for the automated pumping of liquids are known, wherein a sensor system for automatic switching on / off of the pump depending on the liquid level is provided on the liquid pumps themselves. Sensors are also known which are to be installed in the liquid region, by means of which remote pumps can be switched. However, these require an electrical control unit, which must also be installed in the liquid area - protected against contamination and incoming moisture. The switching signals are routed here regularly via an electrical conductor to the pump. The disadvantage of these devices is in particular that the electrical sensor / control unit must be installed directly in the liquid area, which makes the facilities on the one hand technically complex and prone to contamination and moisture penetration. Moreover, electrical lines in the shower area are usually undesirable.

Presentation of the invention

The present invention is based on the object to provide a device for pumping out of liquids, which allows a remote automatic pumping of liquids, the sensors in the liquid area is based on purely pneumatic system parts.

According to the invention the above object is achieved with the features of claim 1. Advantageous embodiments of the device according to the invention for pumping out liquids are specified in subclaims.

Thereafter, a device of the aforementioned type is characterized in that the control unit has at least one pressure switch which is connected via an air duct, preferably an air hose, with at least one provided in the collecting container pressure vessel (hereinafter also generally referred to as a pressure cell), wherein by rising the liquid level in the collecting container air is compressed in the pressure vessel.

By connecting the pressure vessel with the pressure switch via the air duct and the compression of the pressure vessel in the pressure located air, the pump is switched on and off by means of at least one pressure switch.

Particularly preferably, the circuit takes place when exceeding a predefined in the liquid collecting container and / or the pressure vessel liquid level or air pressure level.

Very particularly preferably two pressure switches are provided on the device, wherein one of the two pressure switches is set to the maximum liquid level of the collecting container and on reaching this liquid level, the pump turns on by means of a relay. After pumping the fluid down to a predefined minimum fluid level, the second pressure switch switches the pump off again via the relay.

Brief description of the drawings

Other objects, features, advantages and applications of the device according to the invention will become apparent from the following description of an embodiment with reference to the drawings.

In the drawings show

1 the top view of a shower drain device, wherein the collecting container protrudes on both sides of the drain grate, so that the pump can work continuously by the increased water volume, there is no "stop-and-go"operation;

2 a longitudinal section of the shower drain device shown in a further embodiment, wherein the drain grate covers the entire water collecting container;

3 a section through a water drain on the wall shown, which does not require a drain grate;

4 the control unit in two views;

5 the pump unit in two views.

Embodiment of the invention

1 shows the top view of a shower drain device, partially broken away, in a preferred embodiment.

How - at least partially - off 1 As can be seen, the shower drain consists of a collecting container 1 , in this embodiment, preferably with a drain grate 4 is provided, a water filter 3 , a water suction nozzle 2 and a pressure cell 5 with hose nozzle. The pressure cell 5 is through a hose with the pressure switches of the control unit 700 in 4 connected. The water suction nozzle 2 is through a suction hose with the pump in 5 connected.

The shower drain is formed as flat as possible in a particularly advantageous embodiment. Single-level showers can be installed according to this preferred embodiment from a screed thickness of 50 mm, out of reach for conventional shower drains. The drain grate 4 is in 1 square shaped. In 2 is the drain grate 4 rectangular designed. In the in 3 illustrated embodiment eliminates the drain grate 4 because the shower water through a longitudinal gap in the wall area in the collecting container 1 expires.

The shower drain is, as in the 1 - 3 shown, preferably formed in the form of a cuboid container, at the top of the water drain 4 is located, with the water drainage 4 in a preferred embodiment of the invention can be placed at the edge. This allows a particularly flat embodiment of the shower tray insofar as that the water drain can be arranged at the edge of the shower tray.

In further embodiments of the device according to the invention for pumping off liquids, the shower drain can furthermore assume any suitable form for integration in or on a shower tray. In this respect, the shower drain can also be configured circumferentially on the shower tray, for example. U-shaped and / or bent. Thus, it could be ensured that the water flows evenly to all sides of the shower tray. In addition, however, any other suitable embodiments of a shower drain, in particular those known from the prior art, are also conceivable.

The control unit 700 in 4 consists according to the invention of a connector housing 10 , a pressure hose 20 , a compressed air distributor 30 , a pressure switch 40 for minimum water level, a pressure switch 50 for maximum water level, one board 60 , a relay 70 and the power connection from the mains via the relay to the water pump 80 ,

If the water level rises in the collecting container 1 in the liquid area, the air pressure in the pressure box increases 5 in the collection container 1 , Through the pressure hose 20 the air pressure on the two pressure switches 40 . 50 transfer. The pressure switch 50 is set to a maximum water level and switches on reaching this level via the relay 70 the water pump. If the water level falls to a set minimum water level, the pressure switch switches 40 over the relay 70 the water pump off.

The pump unit in 5 comprises according to the invention a suction hose 100 , a water pump 500 , a motor 600 , a check valve 400 , a throttle valve 300 , a sewage hose 200 as well as the control unit 700 ,

The control unit 700 controls the switching on / off of the motor 600 who is the water pump 500 drives. The water pump 500 sucks the shower water by means of the suction hose 100 and push it through the check valve 400 , The check valve 400 once has the function of odor barrier and on the other hand it prevents the return of the suction hose 100 located water back into the collecting container 1 , Thereafter, the shower water through an adjustable throttle 300 pressed. The throttle 300 limits the flow rate of the pump 500 to the maximum flow of the shower. The shower water is then either through the suction hose 100 pumped into the existing sewer or directed into the sewer of existing hand basin. In the latter, a second odor trap is thus available.

The device according to the invention for pumping out liquids is not limited in its execution to the above-mentioned preferred embodiments. Rather, a variety of design variations are possible, which make use of the solution shown even with fundamentally different type of execution.

LIST OF REFERENCE NUMBERS

1

collecting container

2

Wasserabsaugtülle

3

water filters

4

Water drain / drain cover

5

Vacuum unit / pressure vessel

10

plug housing

20

pressure hose

30

Compressed air distribution

40

Pressure switch for minimum water level

50

Pressure switch for maximum water level

60

circuit board

70

relay

80

water pump

100

suction hose

200

drain hose

300

throttle valve

400

check valve

500

water pump

600

engine

700

control unit

800

wall connection

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202005017965 U1 [0004]
• EP 2159337 A2 [0004]

Claims (7)

Device for pumping off liquids, comprising at least one fluid pump which pumps off fluids from one of the fluid pump via one or more tubes or channels, the device comprising at least one fluid collecting container ( 1 ) and a control unit ( 700 ), which ensures automatic pumping of the liquid, characterized in that the control unit ( 700 ) at least one pressure switch ( 40 . 50 ), which via an air duct with at least one in the collecting container ( 1 ) provided pressure vessel ( 5 ), wherein by increasing the liquid level in the collecting container ( 1 ) Air in the pressure vessel ( 5 ) is compressed. Device according to claim 1, characterized in that the circuit when exceeding one in the collecting container ( 1 ) and / or the pressure vessel ( 5 ) of predefined liquid level or air pressure level. Device according to Claim 2, characterized in that two pressure switches ( 40 . 50 ) are provided, wherein one of the two pressure switch ( 40 ) to the maximum liquid level of the collecting container ( 1 ) is set and upon reaching this liquid level, the pump turns on by means of a relay and after pumping the liquid to a predefined minimum liquid level, the second pressure switch ( 50 ) Switch off the pump again via the relay. Device according to one of the preceding claims 1 to 3, characterized in that it is designed as a shower drain. Device according to claim 4, characterized in that the shower drain at least one collecting container ( 1 ), a drain grate ( 4 ) or a water drain ( 4 ) and a pressure box ( 5 ), wherein the pressure box ( 5 ) through a hose or a channel with at least one pressure switch ( 40 . 50 ) of the control unit ( 700 ) and the collecting container ( 1 ) is connected by a suction hose with the liquid pump. Device according to one of the preceding claims 1 to 5, characterized in that the control unit ( 700 ) from a connector housing ( 10 ), a pressure hose ( 20 ), a compressed air distributor ( 30 ), a pressure switch ( 40 ) for minimum water level, the at least one pressure switch, a circuit board ( 60 ), at least one relay ( 70 ) and the power supply from the network via the at least one relay ( 70 ) to the water pump ( 80 ) consists. Device according to one of the preceding claims 1 to 6, characterized in that the liquid pump unit at least one suction hose ( 100 ), a water pump ( 500 ), a motor 600 ), a check valve ( 400 ), a throttle valve ( 300 ), a sewage hose ( 200 ) as well as the control unit ( 700 ).

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