DE202022104957U1 - Easy to maintain drainage and pressure reduction device for a basement floor - Google Patents

Abstract

Easily serviceable drainage and pressure reduction device for a basement floor, characterized in that it comprises
a water pump (1) provided in a water sump (2);
a pressure relief well arranged in a borehole of the water sump (2), the pressure relief well comprising an upper pipe (3) and a lower pipe detachably connected; a connection between the upper pipe (3) and the lower pipe is arranged on a bottom surface of the water collecting pit (2); the upper tube (3) is provided with a drain hole (31) and the periphery of the lower tube is provided with a first filter layer (41);
a water level monitoring element arranged in the water collection pit (2); and
a control system for controlling the turning on and off of the water pump (1) and for communicative connection with the water level monitoring element.

Description

technical field

The present utility model relates to the technical field of basement construction, in particular to an easy-to-maintain drainage and pressure-reducing device for a basement floor.

background

With the frequent occurrence of anti-floating problems in the basement, the requirements for the anti-floating measures in the construction of basement buildings are becoming more and more stringent. The costs for anti-floating measures such as ballast, anti-floating anchors or anti-buoyancy protection piles are increasing all the time. Due to occasional extraordinary heavy rain, water pipe bursts, uneven drainage and other factors, the groundwater level rises sharply in a short period of time, causing accidents involving general floating or local lifting of underground structures.

To prevent the structural damage in the basement caused by the rise in the water table, there is a drainage and pressure relief device that prevents anti-floating. The device is provided with a continuous connection opening in the water collection pit of the basement. In case of excessive water pressure, the device will automatically open the water drain and lower the water table, so that the basement structure will not be damaged. However, the dewatering and depressurizing devices often have to contend with the following problems. 1) Drainage performance may decline after long-term operation, and later maintenance and repair is troublesome. 2) In the actual operation of the pressure relief device, drainage is initiated when the groundwater pressure is slightly increased, and the operation is stopped again shortly after the pressure relief by the drainage, resulting in the device and the water pump in the water sump repeatedly operating for a short time , reducing equipment life and increasing maintenance costs.

Description of the utility model

The purpose of the present utility model is to provide an easy-to-maintain drainage and pressure reduction device for a basement floor, to overcome the above-mentioned shortcomings of the prior art drainage and pressure reduction device that the drainage efficiency may decrease after long-term operation, the later maintenance and repair is troublesome.

In order to achieve the above purpose, the utility model gives the following technical solutions.

• eine Wasserpumpe, die in einer Wassersammelgrube vorgesehen ist;
• ein Druckentlastungsschachtrohr, das in einem Bohrloch der Wassersammelgrube vorgesehen ist, wobei das Druckentlastungsschachtrohr ein oberes Rohr und ein unteres Rohr umfasst, die lösbar verbunden sind; eine Verbindung zwischen dem oberen Rohr und dem unteren Rohr befindet sich an einer Bodenfläche der Wassersammelgrube; das obere Rohr ist mit einem Abflussloch versehen, und der Umfang des unteren Rohrs ist mit einer ersten Filterschicht versehen;
• ein Wasserstandsüberwachungselement, das in der Wassersammelgrube vorgesehen ist; und
• ein Steuersystem zum Steuern des Ein- und Ausschaltens der Wasserpumpe und zum kommunikativen Verbinden des Wasserstandsüberwachungselements.

An easily maintained drainage and pressure reduction device for a basement floor comprising:

• a water pump provided in a water collection pit;
• a pressure relief well pipe provided in a borehole of the water sump, the pressure relief well pipe including an upper pipe and a lower pipe detachably connected; a connection between the upper pipe and the lower pipe is at a bottom surface of the water collection pit; the upper tube is provided with a drain hole, and the periphery of the lower tube is provided with a first filter layer;
• a water level monitor provided in the water collection pit; and
• a control system for controlling the turning on and off of the water pump and for communicatively connecting the water level monitoring element.

By using the easy-to-maintain drainage and pressure-reducing device for a basement floor of the present utility model, when the groundwater pressure increases, groundwater can enter the water collection pit via the drain hole; the water level monitoring element is used for monitoring the water level in the water sump exceeding a preset water level; the control system controls the turning on of the water pump to remove accumulated water; the control system turns off the water pump when the water level drops; the decompression stack pipe is provided as an up and down divided structure; the upper tube and the lower tube are detachably connected to allow easy disassembly; and the upper pipe and the lower pipe can each be replaced with convenient maintenance, which is advantageous for reducing maintenance costs.

Preferably, the lower tube includes an inner cylinder and an outer cylinder; the outer cylinder is outside the inner cylinder; the inner cylinder is sized to fit inside the top tube; and between the inner cylinder A filling layer is provided on the and the outer cylinder.

More preferably, the portion of the fill layer that is below the basement floor is a second filter layer; a geotextile is provided between the second filter layer and the inner cylinder; the part of the infill layer that is on the basement floor is a waterproof micro-expansion concrete layer; and the concrete strength of the waterproof micro-expansion concrete layer is lower than that of the basement floor.

More preferably, the inner cylinder and the outer cylinder are each provided with a first water-stop steel plate at positions corresponding to the basement floor; a second water-stop steel plate is further provided outside the outer cylinder; and the second waterstop steel plate is located between a waterproof roll and a cushion layer below the basement floor.

The lower tube has a two-layer structure; the outer cylinder is for fixing the inner periphery of the first filter layer and connecting with a waterproof structure of the basement; the inner cylinder serves as a water drainage channel to facilitate the replacement of the inner cylinder; and at the same time, during the replacement, he can carry out the maintenance or replacement of the geotextile and the second filter layer, which further reduces the difficulty of later maintenance.

More preferably, a waterproof coating is provided between the second waterstop steel plate and the waterproof roller.

More preferably, the first filter layer is a pebble filter layer and the second filter layer is a coarse sand filter layer.

Preferably, a partition is provided in the upper tube and provided with a piston member therethrough; the piston element can move along the upper tube; an end of the piston member remote from a piston head is provided with a sealing partition; the piston member moving up can drive the sealing partition to move over the drain hole; and the downwardly moving piston element causes the sealing partition to move under the drain hole.

More preferably, an electromagnet is provided above the piston head and the control system controls the electromagnet to be energized or de-energized so that the piston head can be moved closer to or away from the electromagnet.

More preferably, a spring member is sheathed on a rod body of the piston member; an end plate is provided at an end of the spring member far from the piston head; a restricting plate is provided on an inner wall of the upper pipe above the drain hole; the restricting plate abuts the end plate, and the sealing partition is located below the drain hole when the spring member is in a free state.

With the above arrangement, when the groundwater pressure gradually increases, the sealing partition can be pushed to the drain hole and gradually open; even if the water pressure is insufficient, the electromagnet can be opened to attract the piston head, and then the drain hole can be fully opened, so that a large amount of groundwater enters the water collection pit, and the groundwater pressure can be effectively and continuously discharged; and as needed, after the water pump stops pumping water, the electromagnet can be controlled to be de-energized, and the spring member moves down to cooperate with the spring member to reset down to close the drain hole close so that the drainage and pressure reduction device can only stop draining when the groundwater falls to a lower water level, thereby avoiding frequent opening and closing and short-term operation of the drainage and pressure reduction device.

More preferably, the upper tube has a first seat plate at a lower end, the lower tube has a second seat plate at an upper end, and the first seat plate and the second seat plate are bolted by a connecting plate.

• 1. Mit der leicht zu wartenden Entwässerungs- und Druckreduzierungsvorrichtung für den Untergeschossboden im vorliegenden Gebrauchsmuster kann bei steigendem Grundwasserdruck Grundwasser über das Abflussloch in die Wassersammelgrube eindringen. Das Wasserstandsüberwachungselement dient zur Überwachung des Wasserstands in der Wassersammelgrube bei Überschreiten eines voreingestellten Wasserstands. Das Steuersystem steuert, dass die Wasserpumpe eingeschaltet wird, um das angesammelte Wasser zu entfernen. Wenn der Wasserstand fällt, schaltet das Steuersystem die Wasserpumpe ab. Das Druckentlastungsschachtrohr ist als eine auf- und abwärts geteilte Struktur vorgesehen. Das obere Rohr und das untere Rohr sind lösbar verbunden, um eine einfache Demontage zu ermöglichen, und das obere Rohr und das untere Rohr können jeweils ersetzt werden, was eine bequeme Wartung ermöglicht und die Wartungskosten reduziert.
• 2. Das untere Rohr hat eine doppellagige Struktur, um den Austausch des Innenzylinders zu erleichtern und die Schwierigkeit der Wartung zu einem späteren Zeitpunkt weiter zu reduzieren.
• 3. Es entlastet den Grundwasserdruck effektiv und kontinuierlich, um sicherzustellen, dass die Entwässerungs- und Druckminderungsvorrichtung erst dann aufhören kann zu entwässern, wenn das Grundwasser auf einen niedrigeren Wasserstand gesunken ist, wodurch häufiges Öffnen und Schließen und ein kurzzeitiger Betrieb der Entwässerungs- und Druckminderungsvorrichtung vermieden werden.

In summary, the utility model has the following advantageous effects compared to the prior art.

• 1. With the easy-maintenance drainage and pressure reduction device for the basement floor in the present utility model, when the groundwater pressure increases, groundwater can enter the water collection pit via the drain hole. The water level monitoring element is used to monitor the water level in the water collection pit when a preset water level is exceeded. The tax system tem controls that the water pump is turned on to remove the accumulated water. When the water level drops, the control system shuts off the water pump. The pressure relief shaft pipe is designed as an up and down divided structure. The upper tube and the lower tube are detachably connected for easy disassembly, and the upper tube and the lower tube can be replaced respectively, which allows for convenient maintenance and reduces maintenance costs.
• 2. The lower tube has a double-layer structure to facilitate the replacement of the inner cylinder and further reduce the difficulty of maintenance at a later date.
• 3. It relieves the groundwater pressure effectively and continuously to ensure that the drainage and pressure-reducing device can only stop draining when the groundwater drops to a lower water level, eliminating frequent opening and closing and short-term operation of the drainage and pressure-reducing device be avoided.

character list

• 1 Fig. 12 is a schematic structural view of an easy-to-maintain drainage and depressurization device for a basement floor.
• 2 is an enlarged partial view of part A in 1 ;
• 3 is an enlarged partial view of part B in 1 ;

The reference numerals given in the drawings are: 1-water pump, 2-water collection pit, 3-upper pipe, 31-drain hole, 32-first seat plate, 33-second seat plate, 34-connection plate, 41-first filter layer, 42-second filter layer, 43 -Geotextile, 44- waterproof micro-expansion concrete layer, 5-basement floor, 51-inner cylinder, 52-outer cylinder, 53-cushion layer, 61-first waterstop steel plate, 62-second waterstop steel plate, 71-electromagnet, 72-piston element, 73-sealing partition, 74 spring element.

Detailed description of the utility model

The present utility model will be described in more detail below with reference to the accompanying drawings and detailed embodiments. However, it should not be construed that the scope of the subject matter of the present utility model described above is limited to the following embodiments, and the technology implemented based on the disclosure is within the scope of the present utility model.

Embodiment 1

• eine Wasserpumpe 1, die in einer Wassersammelgrube 2 angeordnet ist;
• ein Druckentlastungsschachtrohr, das in einem Bohrloch der Wassersammelgrube 2 angeordnet ist, wobei das Druckentlastungsschachtrohr ein oberes Rohr 3 und ein unteres Rohr umfasst, die lösbar verbunden sind; eine Verbindung zwischen dem oberen Rohr 3 und dem unteren Rohr befindet sich an einer Bodenfläche der Wassersammelgrube 2; das obere Rohr 3 ist mit einem Abflussloch 31 versehen, und der Umfang des unteren Rohrs ist mit einer ersten Filterschicht 41 versehen;
• ein Wasserstandsüberwachungselement, das in der Wassersammelgrube 2 vorgesehen ist; und
• ein Steuersystem zum Steuern des Ein- und Ausschaltens der Wasserpumpe 1 und zur kommunikativen Verbindung mit dem Wasserstandsüberwachungselement.

As in the 1-3 shown, an easy-to-maintain drainage and pressure reduction device for a basement floor of the present utility model comprises:

• a water pump 1 arranged in a water collection pit 2;
• a decompression stack pipe disposed in a borehole of the water sump 2, the decompression stack pipe comprising an upper pipe 3 and a lower pipe detachably connected; a connection between the upper pipe 3 and the lower pipe is at a bottom surface of the water collecting pit 2; the upper tube 3 is provided with a drain hole 31, and the periphery of the lower tube is provided with a first filter layer 41;
• a water level monitor provided in the water sump 2; and
• a control system for controlling the turning on and off of the water pump 1 and for communicative connection with the water level monitoring element.

In particular, a top cover can be provided on the water collection pit 2 . A waterproof protective layer, a waterproof roll, and a cushion layer 53 are provided between the basement floor 5 and the first filter layer 41 in order from top to bottom. As in 3 shown, the lower tube comprises an inner cylinder 51 and an outer cylinder 52; the outer cylinder 52 is outside the inner cylinder 51; the inner cylinder 51 is sized to fit within the upper tube 3; and between the inner cylinder 51 and the outer cylinder 52, a filler layer is provided. The portion of the infill layer that is below the basement floor 5 is a second filter layer 42. Preferably, the first filter layer 41 is a pebble filter layer and the second filter layer 42 is a coarse sand filter layer. A geotextile 43 is provided between the second filter layer 42 and the inner cylinder 51 . The part of the infill layer which is on the basement floor 5 is a waterproof micro-expansion concrete layer 44, and the concrete strength of the waterproof micro-expansion concrete layer 44 is lower than that of the basement floor 5, ie, an inferior concrete is suitable. The inner cylinder 51 and the outer cylinder 52 are each with a first water stop steel plate 61 at positions corresponding to the basement floor 5 . A second water-stop steel plate 62 is further provided outside of the outer cylinder 52 . The second water-stop steel plate 62 is located between a waterproof roll and a cushion layer 53 below the basement floor 5 and overlaps with the waterproof roll; and a waterproof coating such as waterproof resin is provided between the second water-stop steel plate 62 and the waterproof roller. The lower tube has a two-layer structure. The outer cylinder 52 is used for fixing the inner periphery of the first filter layer 41 and connecting with the waterproof structure of the basement. The inner cylinder 51 serves as a water drainage channel. The two-layer tubular body is designed to facilitate the replacement of the inner cylinder 51 and at the same time it can perform the maintenance or replacement of the geotextile 43 and the second filter layer 42 during the replacement, further reducing the difficulty of later maintenance.

As in 2 As shown, a partition wall is provided in the upper tube 3 and provided with a piston member 72 therethrough. The piston element 72 can move along the upper tube 3 . An end of the piston member 72 remote from a piston head is provided with a sealing bulkhead 73 . The piston member 72 moving up can cause the sealing partition 73 to move above the drain hole 31, and the piston member 72 moving down causes the sealing partition 73 to move below the drain hole 31. When the groundwater pressure gradually increases, the sealing partition 73 can be pushed to the drain hole 31 and gradually opens, and when the groundwater pressure decreases, the piston member 72 falls by gravity and blocks the drain hole 31. Preferably, an electromagnet 71 is provided above the piston head, and that The control system controls the energization or de-energization of the electromagnet 71 so that the piston head can be moved closer to or removed from the electromagnet 71. A spring element 74 is more preferably encased on a rod body of the piston element 72 . An end plate is provided at an end of spring member 74 remote from the piston head. A restricting plate is provided on an inner wall of the upper pipe 3 above the drain hole 31 . Both the restricting plate abuts the end plate and the sealing partition 73 is below the drain hole 31 when the spring member 74 is in a free state. The electromagnet 71 is energized to attract the spring member 72 . At this moment, the sealing partition 73 abuts against the restricting plate, the spring member 74 is compressed, and the drain hole 31 is fully opened. When the electromagnet 71 is not energized, the piston member 72 releases and the compressed spring member 74 is reset to close the drain hole 31.

During use, even if the water pressure is not enough to fully open the drain hole 31, the electromagnet 71 can be opened to attract the plunger head, and then the drain hole 31 can be fully opened to prevent the entry of a large amount of groundwater into the Facilitate water collection pit 2, which effectively, continuously and quickly relieves groundwater pressure. As needed, the water pump 1 stops pumping, and then the electromagnet 71 is controlled to be turned off so that the drain hole 31 can be closed. Therefore, the drainage and pressure-reducing device can only stop draining when the groundwater has dropped to a lower water level, thereby avoiding frequent opening and closing and short-term operation of the drainage and pressure-reducing device.

The lower end of the upper tube 3 is provided with a first seat plate 32, the upper ends of the inner and outer cylinders 51 and 52 are each provided with a second seat plate 33, the second seat plate 33 of the inner cylinder 51 and the second seat plate 33 of the outer cylinder 52 are respectively bolted to the first seat plate 32 via a connection plate 34, and a waterproof seal is provided between the first seat plate 32 and the connection plate 34. FIG.

The above statements are only preferred embodiments of the utility model and are not intended to limit the utility model. Every change, every equivalent replacement and every improvement that is made in the spirit and according to the principles of the utility model falls under the scope of protection of the utility model.

The present utility model discloses an easy-to-maintain drainage and pressure-reducing device for a basement floor, comprising a water pump provided in a water collection pit; a pressure relief well pipe provided in a borehole of the water sump, the pressure relief well pipe comprising an upper pipe and a lower pipe detachably connected to each other; a connection between the upper pipe and the lower pipe at a bottom surface of the water collection pit is arranged; the upper tube is provided with a drain hole and the periphery of the lower tube is provided with a first filter layer; a water level monitor provided in the water collection pit; and a control system for controlling turning on and off of the water pump and for communicative connection with the water level monitoring element. The pressure relief stack pipe of the present device is provided as an upper and lower split structure, the upper pipe and the lower pipe are detachably connected, which is easy to disassemble; and the upper pipe and the lower pipe can be replaced respectively, which is convenient for maintenance and advantageous for reducing maintenance costs.

Claims (10)

Easy-to-maintain drainage and pressure-reducing device for a basement floor, characterized in that it comprises a water pump (1) provided in a water collection pit (2); a pressure relief well arranged in a borehole of the water sump (2), the pressure relief well comprising an upper pipe (3) and a lower pipe detachably connected; a connection between the upper pipe (3) and the lower pipe is arranged on a bottom surface of the water collecting pit (2); the upper tube (3) is provided with a drain hole (31) and the periphery of the lower tube is provided with a first filter layer (41); a water level monitoring element arranged in the water collection pit (2); and a control system for controlling turning on and off of the water pump (1) and for communicative connection with the water level monitoring element. Easy to maintain drainage and pressure reduction device for a basement floor claim 1 , characterized in that the lower tube comprises an inner cylinder (51) and an outer cylinder (52); wherein the outer cylinder (52) is arranged outside of the inner cylinder (51); the inner cylinder (51) is sized to fit within the top tube (3); and a filler layer is provided between the inner cylinder (51) and the outer cylinder (52). Easy to maintain drainage and pressure reduction device for a basement floor claim 2 , characterized in that the part of the filling layer which is below the basement floor (5) is a second filter layer (42); a geotextile (43) is provided between the second filter layer (42) and the inner cylinder (51); the part of the infill layer located on the basement floor (5) being a waterproof micro-expansion concrete layer (44); and the concrete strength of the waterproof micro-expansion concrete layer (44) is lower than that of the basement floor (5). Easy to maintain drainage and pressure reduction device for a basement floor claim 3 , characterized in that the inner cylinder (51) and the outer cylinder (52) are each arranged with a first water-stop steel plate (61) at positions corresponding to the basement floor (5); a second water-stop steel plate (62) is further arranged outside the outer cylinder (52); and the second water-stop steel plate (62) is interposed between a waterproof roll and a cushion layer (53) under the basement floor (5). Easy to maintain drainage and pressure reduction device for a basement floor claim 4 , characterized in that a waterproof coating is provided between the second water-stop steel plate (62) and the waterproof roller. Easy to maintain drainage and pressure reduction device for a basement floor claim 3 , characterized in that the first filter layer (41) is a pebble filter layer and the second filter layer (42) is a coarse sand filter layer. Easy-to-maintain drainage and pressure-reducing device for a basement floor according to any one of Claims 1 until 6 , characterized in that in the upper tube (3) a partition is arranged, through which a piston member (72) is passed; the piston element (72) can move along the upper tube (3); an end of the piston member (72) remote from a piston head is provided with a sealing partition (73); the piston member (72), when moving up, can cause the sealing partition (73) to move above the drain hole (31); and the piston member (72), when moving downward, causes the sealing partition (73) to move below the drain hole (31). Easy to maintain drainage and pressure reduction device for a basement floor claim 7 , characterized in that an electromagnet (71) above the piston head and the control system controls the electromagnet (71) to be energized or de-energized so that the piston head can be moved closer to or away from the electromagnet (71). Easy to maintain drainage and pressure reduction device for a basement floor claim 8 , characterized in that a spring element (74) is sheathed on a rod body of the piston element (72); an end plate is provided at an end of the spring member (74) remote from the piston head; a restricting plate is provided on an inner wall of the upper pipe (3) above the drain hole (31); the restricting plate abuts the end plate and the sealing partition (73) is located below the drain hole (31) when the spring member (74) is in a free state. Easy to maintain drainage and pressure reduction device for a basement floor claim 7 , characterized in that the upper tube (3) has a first seat plate (32) at a lower end, the lower tube has a second seat plate (33) at an upper end and the first seat plate (32) and the second seat plate (33 ) are screwed together by a connecting plate (34).

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