An automatic detection and discharge control device for dewatering in building construction pits

Abstract

This utility model relates to the field of auxiliary equipment technology for building construction, specifically an automatic detection and discharge control device for dewatering in building construction pits. It includes a dewatering well and a pumping component. The top of the dewatering well is equipped with a top plate. The pumping component includes a first pumping pipe, a second pumping pipe, a third pumping pipe, and three pumps. Each of the first, second, and third pumping pipes has a connecting pipe at its top. The bottom outer wall of the first pumping pipe has a connecting seat. Both the first and second pumping pipes have floating components and detection components. The top plate has a first mounting hole, a first sliding hole, and a second sliding hole. This utility model additionally includes a detection component that detects a preset height range within the dewatering well, rather than detecting the preset height itself. The pumps only stop working when the floating component moves out of the preset height range, avoiding repeated starting and stopping of the pumps.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for building construction, specifically an automatic detection and discharge control device for dewatering in building construction pits. Background Technology

[0002] In construction, there is often an abundance of groundwater on site. During the construction of the foundation pit, groundwater may affect the safety and quality of construction. The general practice on site is to set up dewatering wells around the foundation pit and use drainage pumps to drain the groundwater around the foundation pit to a safe area away from the construction area. This lowers the groundwater level below the bottom of the foundation pit and ensures that groundwater will not flow into the foundation pit, thereby affecting the stability of the slope and the soil stability of the foundation.

[0003] Chinese utility model patent CN222102254U discloses an automatic detection and discharge control system for dewatering in construction pits, comprising: a dewatering well located around the perimeter of the pit; a level gauge component installed at the top of the dewatering well; a pumping component, with one end of a first pumping pipe connected to a first pumping pump and the other end extending into the bottom of the dewatering well, and one end of a second pumping pipe connected to a second pumping pump and the other end extending into the middle of the dewatering well; and a control component, with a programmable controller connected to the level gauge component, the first pumping pump, the second pumping pump, and an audible and visual alarm. This utility model is mainly used for water level monitoring in foundation pits.

[0004] However, the above-mentioned patent still has the following shortcomings in actual use: if the water level rises and falls repeatedly at the second preset height value of the dewatering well, the second water pump is very prone to repeatedly opening and closing, which is not practical. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides an automatic detection and discharge control device for dewatering in construction pits, in order to solve the problem mentioned in the background art of how to avoid the reciprocating opening and closing of the second water pump.

[0006] The technical solution of this utility model is:

[0007] An automatic detection and discharge control device for dewatering in a construction pit includes a dewatering well and a pumping component. The top of the dewatering well is provided with a top plate. The pumping component includes a first pumping pipe, a second pumping pipe, a third pumping pipe, and three pumps. The top of the first, second, and third pumping pipes is provided with connecting pipes. The bottom outer wall of the first pumping pipe is provided with a connecting seat. The first and second pumping pipes are each provided with a floating component and a detection component for detecting the position of the floating component within a preset height range. The top plate is provided with a first mounting hole for mounting the connecting pipe on the first pumping pipe, a first sliding hole for sliding cooperation with the second pumping pipe, and a second sliding hole for sliding cooperation with the third pumping pipe. The mounting hole, the first sliding hole, and the second sliding hole are arranged along a straight line. The dewatering well is located on the periphery of the pit. The connecting seat is located on the inner wall of the dewatering well. The second pumping pipe is connected to the floating component of the first pumping pipe, and the third pumping pipe is connected to the floating component of the second pumping pipe. The three connecting pipes are respectively connected to the three pumps.

[0008] Preferably, the floating component includes a floating cross plate, one end of which is provided with a through hole for a first or second water-drawing pipe to pass through, and the other end of which is provided with a second mounting hole, the bottom ends of the second and third water-drawing pipes being respectively installed in the two second mounting holes.

[0009] Preferably, the cross-sections of the first, second, and third pumping pipes are all polygonal.

[0010] Preferably, the detection component includes a stop block, a detection abutment rod, and a detection element that abuts against the detection abutment rod. The stop block is provided with a third mounting hole and a lifting slide groove. The bottom of the stop block is provided with an inner groove that communicates with the lifting slide groove. The bottom of the detection abutment rod is provided with a telescopic block that matches the inner groove. A limiting protrusion is provided on one side of the top of the detection abutment rod. The first water pipe and the second water pipe are respectively installed in the two third mounting holes. The detection abutment rod is vertically slidably disposed in the lifting slide groove. The detection element is disposed on the top of the other end of the stop block.

[0011] Preferably, the cross-sectional area of ​​the telescopic block is slightly smaller than the cross-sectional area of ​​the inner groove.

[0012] Preferably, the detection component includes a force-bearing block, a mounting frame, an abutment block, and a proximity sensor. The force-bearing block has a lower wedge surface at its head end, the mounting frame has a telescopic groove at its head end that slides with the force-bearing block, and four rectangularly distributed telescopic rods are provided on the inner wall of the tail end of the mounting frame. Springs are sleeved on the telescopic rods, and telescopic sleeves are slidably provided at the head end of the telescopic rods. The other end of the detection abutment rod has an upper wedge surface that mates with the lower wedge surface. The mounting frame is positioned on top of the stop block, the abutment block is slidably positioned inside the mounting frame, the head end of the abutment block is fixedly connected to the tail end of the abutment block, the head end of the telescopic sleeve is fixedly connected to the tail end of the force-bearing block, and the proximity sensor is positioned on the inner wall of the tail end of the mounting frame.

[0013] Preferably, the connecting pipes on the second and third pumping pipes are both equipped with limiting external protrusion rings.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention features an additional detection component that detects a preset height range within the dewatering well, rather than detecting the preset height itself. The pump stops working only after the floating component moves out of the preset height range, thus avoiding repeated starting and stopping of the pump. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the location and structure of the automatic detection and discharge control device for dewatering in construction pits according to this utility model.

[0017] Figure 2 This is a schematic diagram of the automatic detection and discharge control device for dewatering in construction pits according to the present invention.

[0018] Figure 3 This is a partial structural schematic diagram of the automatic detection and discharge control device for dewatering in construction pits according to this utility model.

[0019] Figure 4 This is a partial cross-sectional view of the automatic detection and discharge control device for dewatering in construction pits according to this utility model.

[0020] In the picture:

[0021] 1. Dewatering well; 11. Top plate; 2. First pumping pipe; 21. Connecting pipe; 211. Limiting outer protrusion ring; 22. Connecting seat; 3. Second pumping pipe; 4. Third pumping pipe; 5. Pumping pump; 6. Floating component; 61. Floating cross plate; 611. Second mounting hole; 7. Detection component; 71. Stop block; 711. Third mounting hole; 712. Lifting slide; 713. Inner groove; 72. Detection contact rod; 721. Telescopic block; 722. Limiting protrusion plate; 723. Upper wedge surface; 73. Detection component; 731. Force-bearing block; 732. Mounting outer frame; 733. Abutment block; 734. Proximity sensor; 735. Lower wedge surface; 736. Telescopic rod; 737. Spring; 738. Telescopic sleeve; 8. Foundation pit. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 The present invention will describe the above technical solution in detail through the following embodiments:

[0024] An automatic detection and discharge control device for dewatering in construction pits includes a dewatering well 1 and a pumping component. The top of the dewatering well 1 is provided with a top plate 11. The pumping component includes a first pumping pipe 2, a second pumping pipe 3, a third pumping pipe 4, and three pumps 5. The top of the first pumping pipe 2, the second pumping pipe 3, and the third pumping pipe 4 are all provided with connecting pipes 21. The bottom outer wall of the first pumping pipe 2 is provided with a connecting seat 22. The first pumping pipe 2 and the second pumping pipe 3 are each provided with a floating component 6 and a detection component 7 for detecting the position of the floating component 6 within a preset height range. The top plate 11 is provided with a first mounting hole for mounting the connecting pipe 21 on the first pumping pipe 2, a first sliding hole for sliding cooperation with the second pumping pipe 3, and a second sliding hole for sliding cooperation with the third pumping pipe 4. The mounting hole, the first sliding hole and the second sliding hole are arranged along a straight line. The dewatering well 1 is located outside the foundation pit 8. The connecting seat 22 is located on the inner wall of the dewatering well 1. The second pumping pipe 3 is connected to the floating part 6 of the first pumping pipe 2. The third pumping pipe 4 is connected to the floating part 6 of the second pumping pipe 3. The three connecting pipes 21 are respectively connected to the three pumping pumps 5.

[0025] This utility model also includes a level gauge component and a control component, which are existing technologies.

[0026] This utility model additionally provides a detection component 7 to detect the preset height range within the dewatering well 1, instead of detecting at the preset height. The water pump 5 only stops working after the floating component 6 leaves the preset height range, thus avoiding the repeated starting and stopping of the water pump 5.

[0027] The first preset height range is the lower middle part of the interior of the dewatering well 1, and the second preset height range is the upper middle part of the interior of the dewatering well 1.

[0028] When the water level in the dewatering well 1 rises, the level gauge component can detect it and then work with the pump 5 of the first pumping pipe 2. As the water level continues to rise, the second pumping pipe 3 and the third pumping pipe 4 also begin to rise slowly through the floating component 6. The floating component 6 includes a floating horizontal plate 61. One end of the floating horizontal plate 61 is provided with a through hole for the first pumping pipe 2 or the second pumping pipe 3 to pass through. The other end of the floating horizontal plate 61 is provided with a second mounting hole 611. The bottom ends of the second pumping pipe 3 and the third pumping pipe 4 are respectively installed in the two second mounting holes 611.

[0029] The floating horizontal plate 61 on the first water pumping pipe 2 can drive the second water pumping pipe 3 to rise. The floating horizontal plate 61 on the second water pumping pipe 3 can drive the third water pumping pipe 4 to rise. Initially, the second water pumping pipe 3 and the third water pumping pipe 4 are not misaligned. The second water pumping pipe 3 and the third water pumping pipe 4 gradually become misaligned with the first water pumping pipe 2. The second water pumping pipe 3 and the third water pumping pipe 4 can be guided to rise steadily through the second sliding hole and the third sliding hole, respectively. The floating horizontal plate 61 on the first water pumping pipe 2 first abuts against the detection component 7 on it.

[0030] Furthermore, the cross-sections of the first pumping pipe 2, the second pumping pipe 3, and the third pumping pipe 4 are all polygonal, which can prevent the second pumping pipe 3 and the third pumping pipe 4 from deflecting during lifting and lowering.

[0031] The detection component 7 includes a stop block 71, a detection abutment rod 72, and a detection element 73 that abuts against the detection abutment rod 72. The stop block 71 is provided with a third mounting hole 711 and a lifting slide groove 712. The bottom of the stop block 71 is provided with an inner groove 713 that communicates with the lifting slide groove 712. The bottom of the detection abutment rod 72 is provided with a telescopic block 721 that matches the inner groove 713. A limiting protrusion 722 is provided on one side of the top of the detection abutment rod 72. The first water pipe 2 and the second water pipe 3 are respectively installed in the two third mounting holes 711. The detection abutment rod 72 is vertically slidably disposed in the lifting slide groove 712. The detection element 73 is disposed on the top of the other end of the stop block 71.

[0032] The floating horizontal plate 61 first abuts against the telescopic block 721, and the floating horizontal plate 61 rises synchronously with the telescopic block 721. The telescopic block 721 gradually retracts into the inner groove 713. The telescopic block 721 can drive the detection contact rod 72 to move upward, and the detection element 73 on the detection contact rod 72 can detect the detection contact rod 72.

[0033] The cross-sectional area of ​​the telescopic block 721 is slightly smaller than that of the inner groove 713, which makes it easier for the telescopic block 721 to stably enter the inner groove 713.

[0034] The detection component 73 includes a force-bearing block 731, a mounting frame 732, an abutment block 733, and a proximity sensor 734. The head end of the force-bearing block 731 is provided with a lower wedge surface 735. The head end of the mounting frame 732 is provided with a telescopic groove that slides with the force-bearing block 731. The inner wall of the tail end of the mounting frame 732 is provided with four telescopic rods 736 arranged in a rectangle. A spring 737 is sleeved on the telescopic rod 736. A telescopic sleeve 738 is slidably provided at the head end of the telescopic rod 736. The other end of the top of the detection abutment rod 72 is provided with an upper wedge surface 723 that cooperates with the lower wedge surface 735. The mounting frame 732 is set on top of the stop block 71. The abutment block 733 is slidably set inside the mounting frame 732. The head end of the abutment block 733 is fixedly connected to the tail end of the force-bearing block 731. The head end of the telescopic sleeve 738 is fixedly connected to the tail end of the abutment block 733. The proximity sensor 734 is set on the inner wall of the tail end of the mounting frame 732.

[0035] When the detection contact rod 72 moves upward, its upper wedge surface 723 abuts against the lower wedge surface 735 of the force block 731. Then, through the cooperation of the upper wedge surface 723 and the lower wedge surface 735, the force block 731 is driven to move into the mounting frame 732. The force block 731 drives the abutment block 733 to move. The abutment block 733 abuts against the proximity sensor 734. The telescopic sleeve 738 can squeeze the spring 737. The spring 737 becomes compressed. Then, the water pump 5 connected to the second water pumping pipe 3 works. When the floating horizontal plate 61 moves up and down here, since the detection contact rod 72 is always abutting against the force block 731, the water pump 5 works continuously, that is, it works continuously within this preset height range.

[0036] After the second water pumping pipe 3 stops rising, the third water pumping pipe 4 continues to rise along with the floating horizontal plate 61 on the second water pumping pipe 3. After the detection component 7 on the second water pumping pipe 3 detects the floating horizontal plate 61, the water pump 5 connected to the third water pumping pipe 4 also starts to work, and the audible and visual alarm on the control component also starts to work to remind the staff.

[0037] Both the connecting pipes 21 on the second pumping pipe 3 and the third pumping pipe 4 are equipped with limiting external protrusion rings 211. After the water level in the dewatering well 1 drops, the limiting external protrusion rings 211 can limit the falling position of the second pumping pipe 3 and the third pumping pipe 4.

Claims

1. An automatic detection and discharge control device for dewatering in building construction pits, characterized in that: The system includes a dewatering well (1) and a pumping unit. The top of the dewatering well (1) is provided with a top plate (11). The pumping unit includes a first pumping pipe (2), a second pumping pipe (3), a third pumping pipe (4), and three pumps (5). The top of the first pumping pipe (2), the second pumping pipe (3), and the third pumping pipe (4) are all provided with connecting pipes (21). The bottom outer wall of the first pumping pipe (2) is provided with a connecting seat (22). The first pumping pipe (2) and the second pumping pipe (3) are both provided with floating components (6) and detection components (7) for detecting the position of the floating components (6) within a preset height range. The top plate (11) is provided with... There is a first mounting hole for installing the connecting pipe (21) on the first pumping pipe (2), a first sliding hole for sliding cooperation with the second pumping pipe (3), and a second sliding hole for sliding cooperation with the third pumping pipe (4). The mounting hole, the first sliding hole and the second sliding hole are arranged along a straight line. The dewatering well (1) is located outside the foundation pit (8). The connecting seat (22) is located on the inner wall of the dewatering well (1). The second pumping pipe (3) is connected to the floating part (6) of the first pumping pipe (2). The third pumping pipe (4) is connected to the floating part (6) of the second pumping pipe (3). The three connecting pipes (21) are respectively connected to three pumping pumps (5).

2. The automatic detection and discharge control device for dewatering in building construction pits according to claim 1, characterized in that: The floating component (6) includes a floating horizontal plate (61). One end of the floating horizontal plate (61) is provided with a through hole for the first water pumping pipe (2) or the second water pumping pipe (3) to pass through. The other end of the floating horizontal plate (61) is provided with a second mounting hole (611). The bottom ends of the second water pumping pipe (3) and the third water pumping pipe (4) are respectively installed in the two second mounting holes (611).

3. The automatic detection and discharge control device for dewatering in building construction pits according to claim 2, characterized in that: The cross-sections of the first pumping pipe (2), the second pumping pipe (3), and the third pumping pipe (4) are all polygonal.

4. The automatic detection and discharge control device for dewatering in building construction pits according to claim 1, characterized in that: The detection component (7) includes a stop block (71), a detection contact rod (72), and a detection element (73) that abuts against the detection contact rod (72). The stop block (71) is provided with a third mounting hole (711) and a lifting slide groove (712). The bottom of the stop block (71) is provided with an inner groove (713) that communicates with the lifting slide groove (712). The bottom of the detection contact rod (72) is provided with a telescopic block (721) that matches the inner groove (713). A limiting protrusion (722) is provided on one side of the top of the detection contact rod (72). The first water pipe (2) and the second water pipe (3) are respectively installed in the two third mounting holes (711). The detection contact rod (72) is vertically slidably arranged in the lifting slide groove (712). The detection element (73) is arranged on the top of the other end of the stop block (71).

5. The automatic detection and discharge control device for dewatering in building construction pits according to claim 4, characterized in that: The cross-sectional area of ​​the telescopic block (721) is slightly smaller than that of the inner groove (713).

6. The automatic detection and discharge control device for dewatering in building construction pits according to claim 4 or 5, characterized in that: The detection component (73) includes a force-bearing block (731), a mounting frame (732), an abutment block (733), and a proximity sensor (734). The head end of the force-bearing block (731) is provided with a lower wedge surface (735). The head end of the mounting frame (732) is provided with a telescopic groove that slides with the force-bearing block (731). The inner wall of the tail end of the mounting frame (732) is provided with four telescopic rods (736) arranged in a rectangular pattern. A spring (737) is sleeved on the telescopic rod (736). A telescopic sleeve (737) is slidably provided at the head end of the telescopic rod (736). 738), the other end of the top of the detection contact rod (72) is provided with an upper wedge surface (723) that cooperates with the lower wedge surface (735), the mounting frame (732) is set on the top of the stop block (71), the abutment block (733) is slidably set in the mounting frame (732), the head end of the abutment block (733) is fixedly connected to the tail end of the force block (731), the head end of the telescopic sleeve (738) is fixedly connected to the tail end of the abutment block (733), and the proximity sensor (734) is set on the inner wall of the tail end of the mounting frame (732).

7. The automatic detection and discharge control device for dewatering in building construction pits according to claim 1, characterized in that: The connecting pipes (21) on the second pumping pipe (3) and the third pumping pipe (4) are both equipped with limiting external protrusion rings (211).

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