CN-224214338-U - Foundation pit dewatering water level monitoring and controlling device

CN224214338UCN 224214338 UCN224214338 UCN 224214338UCN-224214338-U

Abstract

The utility model discloses a foundation pit dewatering water level monitoring and controlling device which comprises a vertical rod, a water level controller, a water pump switch and a three-phase electric alternating current contactor, wherein a first sensor, a second sensor and a third sensor which are matched for use and are electrically connected are arranged on the water level controller, the first sensor, the second sensor and the third sensor are sequentially fixed on the vertical rod from top to bottom through a clamp, the third sensor is arranged at the bottom of a pit, the water level at the bottom of the foundation pit is monitored, the first sensor determines a water level line for pumping water at the beginning, the second sensor determines a water level line for closing the water pump, and after the water level line is not sensed, the water level controller controls the water pump switch to automatically close the water pump to stop pumping water. The utility model can monitor the water level line stably through the cooperation of the vertical rod and the water level controller, avoid the defect of unstable floating water level monitoring, further can support the vertical rod in an auxiliary way through the supporting mechanism, keep the vertical rod to be stable vertically and reduce the settlement speed of the vertical rod and the accuracy and stability of the monitoring result.

Inventors

ZHANG QUANBAO
SUN XIANBO
GU QIHAI
GAO PENGFEI
HUANG QILIN
Qi Shucun
Yan Tingjia
ZHAO FANGYU
Du Feiyang
XU JINFEI
CUI YONGZHENG
WANG CHUANKUN

Assignees

临沂市政集团有限公司

Dates

Publication Date: 20260508
Application Date: 20250804

Claims (4)

1. A foundation pit dewatering water level monitoring control device comprises a vertical rod, a water level controller, a water pump switch and a three-phase electric alternating current contactor, and is characterized in that a water pump water suction port is arranged in a foundation pit, the water pump switch is electrically connected with the water pump, a first sensor, a second sensor and a third sensor which are matched to use and are electrically connected are arranged on the water level controller, the water level controller is sequentially fixed on the vertical rod from top to bottom through a clamp, the third sensor is arranged at the bottom of the pit, the water level at the bottom of the foundation pit is monitored, the water pump is ensured to work effectively, the first sensor determines a water level line for pumping water at the beginning, when the water level is detected to reach a set high water level, the water level controller controls the water pump switch to automatically start water pumping, water level for avoiding water accumulation in the foundation pit is ensured to be closed, the water level controller controls the water pump switch to automatically close the water pump to stop pumping after the water level is not sensed, the water level is prevented from being excessively low, the clamp is fastened on the vertical rod through bolts and can be adjusted up and down, the water level controller, the three-phase electric alternating current contactors and the water pump switch are mutually electrically connected and are arranged in the control cabinet, and are arranged in the bottom of the vertical rod, and the water level controller is provided with a supporting disc.
2. The foundation pit dewatering water level monitoring and controlling device according to claim 1, wherein the upright rod is provided with a through hole.
3. The foundation pit dewatering water level monitoring and controlling device is characterized in that a through groove and a first lug plate are arranged on the supporting disc, a hinged supporting plate is arranged in the through groove, an arc-shaped fixing arm which is hinged with the through groove is arranged on the supporting plate, a second lug plate and an inserting hole are formed in the fixing arm, when the supporting plate is attached to the wrapping cone head, the end part of the fixing arm is inserted and fixed with the first lug plate through a pin shaft, in order to enlarge the supporting force of the supporting plate, the second lug plate is inserted and fixed with the first lug plate through rotating the fixing arm, so that the supporting plate is parallel to the supporting disc, the supporting area is enlarged, and the sedimentation speed is reduced.
4. The foundation pit dewatering water level monitoring and controlling device according to claim 1, wherein the upright post is provided with a plurality of groups of supporting mechanisms, and the foundation pit dewatering water level monitoring and controlling device comprises a first support arm, a second support arm and a first L-shaped plate, wherein the first L-shaped plate is fixed on the upright post, the first support arm is rotationally connected with the first L-shaped plate through a pin shaft, the second support arm is slidingly connected with the first support arm and can be mutually locked, the end part of the first support arm is provided with a support plate, the support plate is provided with a first jack and a second jack, two sides of the first support arm are provided with limiting plates, the limiting plates are provided with sliding grooves, and the side surface of the first support arm is provided with a third jack and a plurality of groups of limiting grooves; The end part of the second support arm is provided with a second L-shaped plate, the second L-shaped plate is provided with a sliding connection inserting shaft and a fixing shaft, the fixing shaft is inserted into a third inserting hole to enable the first support arm and the second support arm to be mutually fixed and not slide any more, the end part of the inserting shaft is provided with a wedge block, the inserting shaft is provided with a sleeved spring, the wedge block is pushed by the spring, two sides of the end part of the second support arm are respectively provided with a group of sliding shafts, the sliding shafts are arranged in a sliding groove to enable the second support arm to slide on the surface of the first support arm, the bottom of the second support arm is provided with a baffle, and the bottom of the baffle is provided with a groove.

Description

Foundation pit dewatering water level monitoring and controlling device Technical Field The utility model belongs to the technical field of foundation pit dewatering monitoring, and particularly relates to a foundation pit dewatering water level monitoring and controlling device. Background In the foundation pit construction of a construction site, the problem of groundwater is often accompanied by foundation pit operation, which not only affects the construction progress, but also may adversely affect the stability of the foundation pit. Therefore, pumping water using a water pump is a conventional construction step. However, the traditional water pump lacks intelligent control in the water pumping process, the water pump is easy to idle due to pumping, the motor is burnt out, and the maintenance cost is high, so that the safety and the efficiency of the water pump work are improved by innovating an intelligent means, and the equipment loss and the maintenance cost are reduced. Through retrieval, the automatic dewatering and water level monitoring device for the foundation pit with the bulletin number of CN 219196011U in the prior art can automatically detect the liquid level of accumulated water through the buoyancy piece, and is connected with the trigger rod through the traction rope, when the liquid level is lower than the safety height, the buoyancy piece pulls the trigger rod to rotate upwards, so that the pump body is in a stop state, when the liquid level is higher than the safety height, the traction rope loosens, the trigger rod triggers the switch through self gravity, so that the pump body is started, and the automatic opening and closing of the pump body are realized, and the buoyancy piece is pulled through the traction rope; The buoyancy member is required to float on the water surface with lighter weight, the traction rope is required to be a soft rope and has lighter weight, floating interference on the buoyancy member is smaller, and further a phenomenon is caused that the buoyancy member is not fixed at one place in a floating mode according to an ideal state and floats up and down along with the water level, and can float along with wind and move on the water surface in the weather of strong wind and wind rain. Disclosure of Invention The utility model aims to overcome the defects in the prior art, and provides a foundation pit dewatering water level monitoring and controlling device which can monitor a water level line stably through the cooperation of a vertical rod and a water level controller, avoid the defect of unstable floating water level monitoring, and further can assist in supporting the vertical rod through a supporting mechanism, so that the vertical rod is kept to be stable vertically, and the settlement speed of the vertical rod and the accuracy and stability of a monitoring result are reduced. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: A foundation pit dewatering water level monitoring control device comprises a vertical rod, a water level controller, a water pump switch and a three-phase electric alternating current contactor, wherein a water pump water suction port is arranged in a foundation pit, the water pump switch is electrically connected with the water pump, a first sensor, a second sensor and a third sensor which are matched to use and are electrically connected are arranged on the water level controller, the water level controller is sequentially fixed on the vertical rod from top to bottom through a clamp, the third sensor is arranged at the bottom of the pit, the water level at the bottom of the foundation pit is monitored, the water pump is ensured to work effectively, the first sensor determines a water level line for pumping water at the beginning, when the water level controller detects a set high water level, the water pump switch is controlled to automatically start water pumping, the water level for avoiding water accumulation of the foundation pit is determined by the water level controller, the second sensor is controlled to close the water level line for pumping, after the water level is not detected to be lower, the water level is prevented from idling due to the fact that the water level is excessively low, the water pump switch is automatically closed, the clamp is fastened on the vertical rod through bolts, the clamp can be adjusted up and down, the position is mutually electrically connected between the water level controller and the three-phase electric alternating current contactor and the water pump switch and is arranged in the control cabinet, a supporting disc is arranged at the bottom of the vertical rod, a supporting disc is arranged at the bottom of the foundation pit, a supporting disc is arranged, and a conical head is arranged at the bottom of the supporting disc, and the position of the water level is matched with the supporting disc, and the stable position and can avoi