Foundation pit well point dewatering device

By introducing a water refueling mechanism and automatic control system into the foundation pit well precipitation device, the problem of not being able to automatically refuel water when the water level in the well is too low, and the safety and practicality of the device are improved.

CN222758931UActive Publication Date: 2025-04-15ZHEJIANG DAOYUAN ENG TECH CO LTD
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Patent Information

Application Number
CN202421644472.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-12
Publication Date
2025-04-15
Estimated Expiration
2034-07-12

AI Technical Summary

Technical Problem

The existing automatic precipitation device for foundation pit well points cannot automatically add water when the water level in the well is too low, which affects the safety of surrounding buildings and reduces the practicality of the device.

Method used

A foundation pit well point precipitation device is designed, including a water refueling mechanism, a water refueling tank, an installation strip, a filter plate, a water pump and a water supply pipe. Through the cooperation of the pressure sensor and the controller, water is automatically detected and added to ensure that the water level inside the well is within the appropriate range.

Benefits of technology

It realizes automatic water replenishment when the water level inside the well is too low, avoiding safety threats to surrounding buildings and greatly improving the practicality and reliability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a foundation pit well point dewatering device, and belongs to the technical field of foundation pit dewatering. The foundation pit well point dewatering device comprises a well body, and a drainage mechanism is arranged in the well body; the device is novel in design and ingenious, water can be automatically added into the well body by arranging the water adding mechanism, the water adding tank, a mounting strip, a filter plate, a water suction pump and a water conveying pipe, when the water level in the well body is too low, a pressure sensor transmits a signal to a controller, the controller is used for starting the water suction pump, water in the water adding tank is pumped out through the water suction pump, and the device is convenient to use. And when the water level rises to a specified height, the controller closes the water suction pump, and a filter plate can filter water entering the water adding tank, so that the influence of impurities on the water suction pump is prevented, and the water level is increased. By means of the mechanism, the problem that when the water level in the well body is too low, surrounding buildings are seriously affected is solved, and the practicability of the device is greatly improved.
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Description

Technical Field

[0001] The present application relates to the technical field of foundation pit dewatering, and in particular to a foundation pit well point dewatering device. Background Art

[0002] The patent with the published authorization announcement number CN214657159U discloses an automatic dewatering device for a foundation pit well point, which relates to the technical field of foundation pit dewatering, including a dewatering well and a controller. A protection barrel is provided at the bottom of the dewatering well, and a submersible pump and a pressure sensor are provided inside the protection barrel. The upper end of the submersible pump is connected to a drainage pipe and a submersible pump wire, and the upper end of the pressure sensor is connected to a sensor wire. The other ends of the submersible pump wire and the sensor wire are both connected to the controller. The protection barrel includes an upper cover and a filter. The utility model has a simple principle and is easy to operate. It can effectively protect the submersible pump and control the groundwater level. A protection barrel for the submersible pump is added to prevent damage to the submersible pump. A vibrator is designed to improve the stability of operation and the maintenance cycle is long. The water level in the dewatering well is detected by the pressure sensor, so that the water level in the foundation pit well point is kept within a certain range, avoiding the idling of the submersible pump and saving a lot of manpower, material and financial resources.

[0003] When the device in the above patent dewaters the well point, it uses sensors to sense the changes in water pressure in the well in real time and automatically dewaters the inside of the well. The water level in the well should not be too high or too low. Too high will easily lead to adverse consequences such as sudden surges, uplifts, and pipe bursts at the bottom of the pit; too low will seriously affect the safety of surrounding buildings. However, when the water level in the well is too low, the device cannot add water to the inside of the well, which will cause a certain degree of danger, thereby reducing the practicality of the device.

[0004] For this reason, the present application proposes a foundation pit well point dewatering device. Utility Model Content

[0005] The foundation pit wellpoint dewatering device proposed in the present application solves the problems raised in the above-mentioned background technology; the foundation pit wellpoint dewatering device can automatically add water to the inside of the well body by arranging a water adding mechanism, a water adding tank, a mounting strip, a filter plate, a water pump and a water pipe, thereby avoiding the problem of serious impact on surrounding buildings when the water level inside the well body is too low, and greatly improving the practicability of the device.

[0006] In order to achieve the above purpose, this application adopts the following technical solutions:

[0007] A foundation pit wellpoint dewatering device comprises a well body, a drainage mechanism is arranged inside the well body, a vibration structure is arranged inside the drainage mechanism, a water adding mechanism is arranged on the top of the well body, the water adding mechanism comprises a water adding tank, and the water adding tank is installed on one side of the top of the well body, the inner walls on both sides of the water adding tank are fixedly connected with mounting strips, a filter plate is installed on the top of the mounting strips, a water pump is installed at the bottom end of the well body, a water outlet end of the water pump is fixedly connected with a water pipe, and the water pipe runs through the inside of the well body, an inspection structure is arranged on the top of the water adding mechanism, and a connection structure is arranged on the outside of the drainage mechanism.

[0008] As a preferred embodiment, a layer of crushed stone is laid at the inner bottom of the well body;

[0009] By laying a layer of crushed stones at the inner bottom end of the well body, the stability of the bottom of the well body can be improved, thereby improving the practicality of the device.

[0010] As a preferred embodiment, the drainage mechanism includes a protective cover, and the protective cover is installed on the top of the gravel layer, a cover plate is fixedly installed on the top of the protective cover, a plurality of flow holes are opened on the surrounding surfaces of the protective cover, a controller is installed on the other side of the top of the well body, a pressure sensor is fixedly installed on the inner wall of one side of the protective cover, a submersible pump is installed on the bottom end of the inner part of the protective cover, a water outlet on one side of the submersible pump is fixedly connected to a drainage pipe, and the pressure sensor, the submersible pump and the controller are electrically connected;

[0011] Water enters the protective cover through the flow hole, and the pressure sensor monitors the water level inside the well in real time. When the water level is too high, the pressure sensor transmits a signal to the controller, which starts the submersible pump to pump out the water inside the well through the drain pipe to lower the water level inside the well. When the water reaches the specified level, the pressure sensor transmits a signal to the controller again, and the controller controls the submersible pump to stop working, thereby lowering the water level and improving the practicability of the device.

[0012] As a preferred embodiment, the vibration structure includes a mounting plate, and the mounting plate is fixedly connected to the inner wall of the protective cover, a vibrator is fixedly installed on the top of the mounting plate, and the vibrator is electrically connected to the controller;

[0013] The vibrator is started through the controller, and the vibrator drives the protective cover to vibrate, thereby removing the sand and gravel impurities inside the flow hole, preventing the flow hole from being blocked and affecting the circulation of water, thereby improving the practicality of the device.

[0014] As a preferred embodiment, the inspection structure includes a hinged plate, and the hinged plate is hinged to the top of the water tank, and a handle is fixedly connected to the top of the hinged plate;

[0015] The hinged plate can be opened by pulling the handle, which makes it easy to inspect the internal components and take out the filter plate for cleaning, thereby improving the practicality of the device.

[0016] As a preferred embodiment, the connection structure includes a connection block, and the connection block is fixedly connected to one side of the protective cover, and one side of the connection block is fixedly connected to a pull ring;

[0017] The staff can hook the hook onto the pull ring to facilitate the removal of the protective cover and the inspection and replacement of various components inside the protective cover, thereby improving the practicality of the device.

[0018] Beneficial effects of this application:

[0019] 1. The foundation pit well point dewatering device can automatically add water to the well body by setting a water adding mechanism, a water adding tank, a mounting strip, a filter plate, a water pump and a water pipe. When the water level inside the well body is too low, the pressure sensor transmits a signal to the controller, and the controller starts the water pump. The water inside the water adding tank is pumped out by the water pump, and the water is transmitted through the water pipe and finally discharged to the inside of the well body to complete the water level rise. When the water level rises to a specified height, the controller turns off the water pump, and the filter plate can filter the water entering the water adding tank to prevent impurities from affecting the water pump. This mechanism avoids the problem of serious impact on surrounding buildings when the water level inside the well body is too low, and greatly improves the practicality of the device;

[0020] 2. The foundation pit well point dewatering device can open the water tank by setting up a maintenance structure, a hinged plate and a handle. The hinged plate can be opened by pulling the handle, which is convenient for maintenance of internal components and taking out the filter plate for cleaning, greatly improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the device structure of this application;

[0022] Figure 2 A top view of the structure of the drainage mechanism of this application;

[0023] Figure 3 For this application Figure 1 Enlarged view of point A in the middle.

[0024] Numbers in the figure: 1. Well body; 11. Gravel layer; 2. Drainage mechanism; 21. Protective cover; 22. Cover plate; 23. Flow hole; 24. Controller; 25. Pressure sensor; 26. Submersible pump; 27. Drain pipe; 3. Vibration structure; 31. Mounting plate; 32. Vibrator; 4. Water adding mechanism; 41. Water adding tank; 42. Mounting strip; 43. Filter plate; 44. Water pump; 45. Water pipe; 5. Maintenance structure; 51. Articulated plate; 52. Handle; 6. Connection structure; 61. Connection block; 62. Pull ring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0026] Reference Figure 1-3 The foundation pit well point dewatering device comprises a well body 1, and a gravel layer 11 is laid at the inner bottom end of the well body 1; by laying a gravel layer 11 at the inner bottom end of the well body 1, the stability of the bottom of the well body 1 can be improved, thereby improving the practicability of the device.

[0027] A drainage mechanism 2 is provided inside the well body 1. The drainage mechanism 2 includes a protective cover 21, and the protective cover 21 is installed on the top of the gravel layer 11. A cover plate 22 is fixedly installed on the top of the protective cover 21. A plurality of flow holes 23 are opened on the surrounding surface of the protective cover 21. A controller 24 is installed on the other side of the top of the well body 1. A pressure sensor 25 is fixedly installed on the inner wall of one side of the protective cover 21. A submersible pump 26 is installed at the bottom end of the inner part of the protective cover 21. A drainage pipe 27 is fixedly connected to one side of the water outlet of the submersible pump 26. The pressure sensor 25, the submersible pump 26 and the controller 24 are connected to each other. The device 24 is electrically connected; water enters the protective cover 21 through the flow hole 23, and the water level inside the well body 1 is monitored in real time by the pressure sensor 25. When the water level is too high, the pressure sensor 25 transmits a signal to the controller 24, and the submersible pump 26 is started by the controller 24. The water inside the well body 1 is pumped out through the drain pipe 27 to lower the water level inside the well body 1. When the water level reaches the specified level, the pressure sensor 25 transmits a signal to the controller 24 again, and the controller 24 controls the submersible pump 26 to stop working, thereby lowering the water level, thereby improving the practicability of the device.

[0028] A vibration structure 3 is provided inside the drainage mechanism 2, and the vibration structure 3 includes a mounting plate 31, and the mounting plate 31 is fixedly connected to the inner wall of the protective cover 21, a vibrator 32 is fixedly installed on the top of the mounting plate 31, and the vibrator 32 is electrically connected to the controller 24; the vibrator 32 is started by the controller 24, and the vibrator 32 drives the protective cover 21 to vibrate, and the sand and stone impurities inside the circulation hole 23 are removed by vibration, so as to prevent the circulation hole 23 from being blocked and affecting the circulation of water, thereby improving the practicality of the device.

[0029] A water adding mechanism 4 is provided at the top of the well body 1, and the water adding mechanism 4 includes a water adding tank 41, and the water adding tank 41 is installed on one side of the top of the well body 1, the drainage pipe 27 passes through the interior of the water adding tank 41, and the inner walls on both sides of the water adding tank 41 are fixedly connected with mounting strips 42, and a filter plate 43 is installed on the top of the mounting strips 42. A water pump 44 is installed at the bottom end of the interior of the well body 1, and the water pump 44 is electrically connected to the controller 24, and the water outlet end of the water pump 44 is fixedly connected with a water pipe 45, and the water pipe 45 passes through the interior of the well body 1.

[0030] A maintenance structure 5 is provided on the top of the water adding mechanism 4, and the maintenance structure 5 includes a hinged plate 51, and the hinged plate 51 is hinged to the top of the water adding tank 41, and a handle 52 is fixedly connected to the top of the hinged plate 51; the hinged plate 51 can be opened by pulling the handle 52, which is convenient for maintenance of internal components and convenient for taking out the filter plate 43 for cleaning, thereby improving the practicability of the device.

[0031] A connecting structure 6 is provided on the outside of the drainage mechanism 2, and the connecting structure 6 includes a connecting block 61, and the connecting block 61 is fixedly connected to one side of the protective cover 21, and a pull ring 62 is fixedly connected to one side of the connecting block 61; the staff can hook the hook on the pull ring 62 to facilitate the removal of the protective cover 21, and facilitate the inspection and replacement of various components inside the protective cover 21, thereby improving the practicality of the device.

[0032] Working principle: When the device is used, a layer of gravel layer 11 is laid at the bottom end of the well body 1 to improve the stability of the bottom of the well body 1. Water enters the protective cover 21 through the circulation hole 23. The pressure sensor 25 monitors the water level inside the well body 1 in real time. When the water level is too high, the pressure sensor 25 transmits a signal to the controller 24, and the submersible pump 26 is started by the controller 24. The water inside the well body 1 is pumped out through the drainage pipe 27 to reduce the water level inside the well body 1. When the water level reaches the specified level, the pressure sensor 25 transmits a signal to the controller 24 again. The controller 24 controls the submersible pump 26 to stop working and complete the reduction of the water level. The vibrator 32 is started by the controller 24. The vibrator 32 drives the protective cover 21 to vibrate and remove the sand and stone impurities inside the circulation hole 23 to prevent the circulation hole 23 from being blocked and affecting the circulation of water. The staff can hook the hook on the pull ring 62 to facilitate the removal of the protective cover 21 and the inspection and replacement of various components inside the protective cover 21.

[0033] When the water level inside the well body 1 is too low, the pressure sensor 25 transmits a signal to the controller 24, which starts the water pump 44. The water inside the water tank 41 is pumped out by the water pump 44, and is transmitted through the water pipe 45 to the inside of the well body 1, completing the rise of the water level. When the water level rises to the specified height, the controller 24 turns off the water pump 44, and the filter plate 43 can filter the water entering the water tank 41 to prevent impurities from affecting the water pump 44. The hinged plate 51 can be opened by pulling the handle 52, which is convenient for the inspection of internal components and the removal of the filter plate 43 for cleaning.

[0034] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed in the present application according to the technical solution and utility model concept of the present application, which should be covered by the protection scope of the present application.

Claims

1. A foundation pit well point dewatering device, comprising a well body (1), characterized in that: A drainage mechanism (2) is arranged inside the well body (1), a vibration structure (3) is arranged inside the drainage mechanism (2), a water adding mechanism (4) is arranged on the top of the well body (1), the water adding mechanism (4) comprises a water adding tank (41), and the water adding tank (41) is installed on one side of the top of the well body (1), the inner walls on both sides of the water adding tank (41) are fixedly connected with mounting strips (42), the top of the mounting strips (42) is installed with a filter plate (43), a water pump (44) is installed at the bottom end of the well body (1), the water outlet end of the water pump (44) is fixedly connected with a water pipe (45), and the water pipe (45) runs through the inside of the well body (1), a maintenance structure (5) is arranged on the top of the water adding mechanism (4), and a connection structure (6) is arranged on the outside of the drainage mechanism (2).

2. The foundation pit well point dewatering device according to claim 1 is characterized in that: The inner bottom end of the well body (1) is paved with a layer of crushed stone (11).

3. The foundation pit well point dewatering device according to claim 2 is characterized in that: The drainage mechanism (2) comprises a protective cover (21), and the protective cover (21) is installed on the top of the gravel layer (11), a cover plate (22) is fixedly installed on the top of the protective cover (21), a plurality of flow holes (23) are opened on the surrounding surfaces of the protective cover (21), a controller (24) is installed on the other side of the top of the well body (1), a pressure sensor (25) is fixedly installed on the inner wall of one side of the protective cover (21), a submersible pump (26) is installed at the bottom end of the inner part of the protective cover (21), a water outlet on one side of the submersible pump (26) is fixedly connected to a drainage pipe (27), and the pressure sensor (25), the submersible pump (26) and the controller (24) are electrically connected.

4. The foundation pit well point dewatering device according to claim 3 is characterized in that: The vibration structure (3) comprises a mounting plate (31), and the mounting plate (31) is fixedly connected to the inner wall of the protective cover (21), a vibrator (32) is fixedly mounted on the top of the mounting plate (31), and the vibrator (32) is electrically connected to the controller (24).

5. The foundation pit well point dewatering device according to claim 1, characterized in that: The inspection structure (5) comprises a hinged plate (51), and the hinged plate (51) is hinged to the top of the water filling tank (41), and a handle (52) is fixedly connected to the top of the hinged plate (51).

6. The foundation pit well point dewatering device according to claim 3 is characterized in that: The connection structure (6) comprises a connection block (61), and the connection block (61) is fixedly connected to one side of the protective cover (21), and a pull ring (62) is fixedly connected to one side of the connection block (61).