Remote automatic control foundation pit dewatering device

Abstract

The utility model discloses a remote automatic control foundation pit dewatering device which comprises a protective cover, a data acquisition module, a remote control module, a dewatering tube well, a water level sensor, a submersible pump, a water pumping pipe and a water valve control module. The protective cover is mounted on the ground, and a data acquisition module, a remote control module and a water valve control module are arranged in the protective cover; the downcast tube well is lower than the ground and is a pit; the submersible pump is located at the bottom of the downcast well; one end of the water level sensor is connected with the submersible pump, and the other end of the water level sensor is connected with the data acquisition module; the remote control module is electrically connected with the submersible pump; the other end of the water pumping pipe is located on the ground; the water valve control module is electrically connected with the submersible pump and located in the protection cover. The foundation pit dewatering device is simple in structure and convenient to install, foundation pit dewatering work is automatically carried out through a remote control program and a water valve control module according to dewatering depth setting, and the underground water level is always kept at a certain depth below an excavation face.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit engineering dewatering, in particular to a remotely automated controlled foundation pit dewatering device. Background Art

[0002] With the rapid development of urban construction in China, various underground deep foundation pit projects emerge in an endless stream. During the excavation of foundation pits, due to the existence of groundwater, it poses a serious threat to the safety of the foundation pit excavation process. Improper treatment of groundwater is likely to cause consequences such as foundation pit instability and ground collapse. Therefore, during the excavation of foundation pit soil, the groundwater level needs to be lowered below the excavation surface according to the excavation depth of the foundation pit, neither over-lowering nor under-lowering, so as to ensure the safety of the foundation pit excavation process.

[0003] Traditional foundation pit excavation usually uses manual control to dewater, and the groundwater is lowered to a certain depth before the foundation pit excavation operation. This traditional dewatering method generally requires manual operation and control. When there is no one on-site to watch, sudden situations are likely to occur, resulting in the water level dropping too low or the dewatering not being in place. If not dealt with in time, it is extremely likely to cause safety accidents, greatly restricting its application scope and unable to meet the needs of information-based construction at the present stage.

[0004] CN217354689U discloses a well - used remote water pump control integrated device, including a control box, a gas pressure sensor probe, a water pump tank and a control module. The control module and an air pump are arranged inside the control box. The through - holes of the control box are inserted with the air pipe of the gas pressure sensor probe and the high - pressure water pipe of the water pump. The gas pressure sensor probe and the water pump tank are arranged in the well. The air pipe of the gas pressure sensor probe is inserted with the gas pressure sensor probe, and the high - pressure water pipe of the water pump is inserted with the pneumatic water pump tank. The water outlet of the pneumatic water pump tank is connected to the water outlet pipe. An air - operated valve is arranged at the air outlet of the air pump, and the air pump air source end pipe and the pneumatic water pump end pipe are respectively arranged at both ends of the air - operated valve. The control module includes a gas pressure sensor, a relay, a micro - processor unit, a display screen, a communication module and a power supply module. The micro - processor unit is connected to the gas pressure sensor, the relay, the display screen, the communication module and the power supply module through wires, and can control the dewatering process and facilitate monitoring. However, there may still be a problem of untimely pumping when the water level in the well is too high.

[0005] Therefore, developing a set of remotely automated controlled foundation pit dewatering device has become an urgent problem to be solved at present. Summary of the Utility Model

[0006] The technical problem to be solved by the utility model is aimed at the deficiencies of the above - mentioned prior art, and provides a remotely automated controlled foundation pit dewatering device. This remotely automated controlled foundation pit dewatering device solves the problems existing in the traditional manual control dewatering method and improves the work efficiency.

[0007] To solve the above technical problems, the technical solution adopted by the present utility model is as follows:

[0008] A remotely automated controlled foundation pit dewatering device, comprising a protective cover, a data acquisition module, a remote control module, a dewatering pipe well, a water level sensor, a submersible pump, a water extraction pipe, and a water valve control module; the protective cover is installed on the ground, and the data acquisition module, the remote control module, and the water valve control module are arranged inside the protective cover; the dewatering pipe well is lower than the ground and is a pit; the submersible pump is located at the bottom of the dewatering pipe well; the water level sensor is located at the bottom of the dewatering pipe well, one end is connected to the submersible pump, and the other end is connected to the data acquisition module; the remote control module is electrically connected to the submersible pump; one end of the water extraction pipe is connected to the submersible pump, and the other end is located on the ground; the water valve control module is electrically connected to the submersible pump and is located inside the protective cover.

[0009] Preferably, the protective cover is a cuboid, and the protective cover is provided with a top cover, and the top cover is hinged or detachable to the top of the protective cover.

[0010] Preferably, the water level sensor is a pressure sensor.

[0011] Preferably, the water level sensor 4 is placed below 0.5 m of the maximum dewatering depth of the foundation pit excavation.

[0012] Preferably, the water extraction pipe is connected to the submersible pump by a flange.

[0013] Preferably, the water extraction pipe is a Z-shaped pipe.

[0014] Preferably, it further comprises a filter screen, and the filter screen is arranged on the outer periphery of the submersible pump and the water level sensor.

[0015] The present utility model has the following beneficial effects:

[0016] The structure of the present utility model is simple and the installation is convenient. It is set according to the dewatering depth, and the foundation pit dewatering work is automatically carried out through the remote control program and the water valve control module, so that the groundwater level is always maintained at a certain depth below the excavation surface, overcoming the situation of excessive or insufficient artificial control of dewatering, which can greatly reduce the response time, greatly improve the work efficiency, avoid safety accidents caused by improper dewatering, and can be widely applied to dewatering operations of various foundation pits, slopes, etc. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of a remotely automated controlled foundation pit dewatering device of the present utility model.

[0018] Among them: 1. Protective cover; 2. Data acquisition module; 3. Remote control module; 4. Water level sensor; 5. Submersible pump; 6. Water extraction pipe; 7. Dewatering pipe well; 8. Water valve control module; 9. Filter screen. Detailed Embodiments

[0019] The following further elaborates on the present utility model in conjunction with the accompanying drawings and specific preferred embodiments.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by terms such as "left side", "right side", "upper part", "lower part", etc. are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not represent the importance of the components, so they cannot be understood as limitations to the present utility model. The specific dimensions adopted in this embodiment are only for illustrating the technical solution by way of example and do not limit the protection scope of the present utility model.

[0021] As Figure 1 shown, a remote automated control foundation pit dewatering device includes a protective cover 1, a data acquisition module 2, a remote control module 3, a dewatering pipe well 7, a water level sensor 4, a submersible pump 5, a water extraction pipe 6, and a water valve control module 8.

[0022] The protective cover 1 is installed on the ground. Inside the protective cover 1, there are a data acquisition module 2, a remote control module 3, and a water valve control module 8. The protective cover 1 is a rectangular stainless steel shell. The protective cover 1 is provided with a top cover, and the top cover is hinged or detachable from the top of the protective cover 1, which is convenient for maintenance and inspection, and can also prevent rainwater or foreign objects from entering.

[0023] The dewatering pipe well 7 is lower than the ground and is a pit.

[0024] The submersible pump 5 is located at the bottom of the dewatering pipe well 7.

[0025] The water level sensor 4 is located at the bottom of the dewatering pipe well 7. One end is connected to the submersible pump 5, and the other end is electrically connected to the data acquisition module 2. The water level sensor 4 is a pressure sensor that can measure water pressure and is integrated on the submersible pump 5. The water level sensor 4 is placed below 0.5 m of the maximum dewatering depth of the foundation pit excavation. For example, when excavating a 20 m foundation pit and dewatering as required, the maximum dewatering depth is about 21 m, then the water level sensor 4 is placed below 21.5 m. It also includes a filter screen 9, and the filter screen 9 is arranged on the outer periphery of the submersible pump 5 and the water level sensor 4 to filter the sediment in the water and avoid damage to the submersible pump 5 and the water level sensor 4.

[0026] The remote control module 3 is electrically connected to the submersible pump 5. One end of the water extraction pipe 6 is connected to the submersible pump 5, and the other end is located on the ground. Preferably, the water extraction pipe 6 is connected to the submersible pump 5 by a flange, and the water extraction pipe 6 is a Z-shaped metal pipe. The remote control module 3 can control the submersible pump 5 to pump water.

[0027] The water valve control module 8 is electrically connected to the submersible pump 5 and is located inside the protective cover 1. The water valve control module 8 controls the power of the submersible pump 5. When the water level in the downcomer well 7 is too high, it can increase the pumping force so that the pumping speed is greater than the automatic rising speed of the groundwater level. If the pumping depth is relatively deep, the power is increased; if it is relatively shallow, the power is decreased, thereby realizing the water output.

[0028] A method for using a remotely automated controlled foundation pit dewatering device is as follows:

[0029] In the first step, preset the dewatering depth H1 and the sampling time interval.

[0030] In the second step, calculate the real-time water surface depth: According to the set sampling time interval, measure the water pressure at the location through the water level sensor 4. The data acquisition module 2 acquires the water pressure data and calculates the water surface depth H2 based on the water pressure.

[0031] In the third step, compare H1 and H2 and decide whether to dewater the downcomer well 7 according to the result: When H1 - H2 > 50 cm, the remote control module 3 automatically starts the submersible pump 5 to pump water out from the water extraction pipe 6, thereby completing the lowering of the water level in the downcomer well 7. The water valve control module 8 controls the water extraction volume of the submersible pump 5; when H1 ≤ H2, the remote control module 3 automatically stops the submersible pump 5 from working.

[0032] Continuously repeat the above process to keep the groundwater level always at the preset dewatering depth. The utility model has a simple structure and convenient operation. After the dewatering depth is preset according to the on-site requirements, the water level depth in the downcomer well 7 is acquired through the data acquisition module 2, and the remote control module 3 and the water valve control module 8 are used to control the submersible pump 5 to realize automatic dewatering of the foundation pit and control the water output of the submersible pump 5.

[0033] The preferred embodiments of the present utility model have been described in detail above. However, the present utility model is not limited to the specific details in the above embodiments. Within the technical concept scope of the present utility model, various equivalent transformations can be made to the technical solutions of the present utility model, and these equivalent transformations all belong to the protection scope of the present utility model.

Claims

1. A remote automatic control foundation pit dewatering device, characterized by: The invention comprises a protective cover (1), a data acquisition module (2), a remote control module (3), a dewatering pipe well (7), a water level sensor (4), a submersible pump (5), a water pumping pipe (6) and a water valve control module (8); the protective cover (1) is installed on the ground, and the data acquisition module (2), the remote control module (3) and the water valve control module (8) are arranged in the protective cover (1); the dewatering pipe well (7) is lower than the ground and is a pit; the submersible pump (5) is located at the bottom of the dewatering pipe well (7); the water level sensor (4) is located at the bottom of the dewatering pipe well (7), one end of which is connected to the submersible pump (5) and the other end of which is connected to the data acquisition module (2) The remote control module (3) is electrically connected to the submersible pump (5); one end of the water extraction pipe (6) is connected to the submersible pump (5), and the other end is located on the ground; the water valve control module (8) is electrically connected to the submersible pump (5), and is located in the protective cover (1); the water level sensor (4) is placed below the maximum dewatering depth of the foundation pit excavation of 0.5m; when H1 and H2 are compared, when H1-H2>50cm, the remote control module (3) automatically starts the submersible pump (5) to pump water out from the water extraction pipe (6); when H1≤H2, the remote control module (3) automatically stops the submersible pump (5); H1 is the dewatering depth, and H2 is the water surface depth.

2. The remote automated control foundation pit dewatering device according to claim 1, characterized in that: The protective cover (1) is a rectangular parallelepiped and is provided with a top cover which is hinged or detachable to the top of the protective cover (1).

3. The remote automated control foundation pit dewatering device according to claim 1, characterized in that: The water level sensor (4) is a pressure sensor.

4. The remotely automated controlled foundation pit dewatering device according to claim 1, wherein: The water suction pipe (6) is connected to the submersible pump (5) through a flange.

5. The remote automated control foundation pit dewatering device according to claim 1 is characterized in that: The water pumping pipe (6) is a Z-shaped pipe.

6. The remote automatic control foundation pit dewatering device according to claim 1, wherein: The invention also comprises a filter screen (9), which is arranged on the periphery of the submersible pump (5) and the water level sensor (4).

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