Foundation pit drainage device

Abstract

The utility model belongs to foundation pit drainage technical field especially is a kind of foundation pit drainage device, including waterproof water pump and inlet pipe, the waterproof water pump side detachably connected with hollow connecting ball, the hollow connecting ball side wall is fixedly connected with several extension hoses, several the extension hose movable end is all fixedly connected with plate type water suction head, and several plate type water suction head back are all fixedly connected with float block;With the extension of extension hose to the extension of plate type water suction head, cooperate the buoyancy support of float block to plate type water suction head, so that plate type water suction head can be suspended in water accumulation far from the bottom of foundation pit and carry out high-power rapid suction, effectively avoid the bottom of foundation pit slurry blockage and even damage pipeline and pump body structure, avoid equipment failure to influence the drainage efficiency in foundation pit, the flexible extension of multiple extension hoses, cooperate with the hollow plate structure of plate type water suction head, so that multiple plate type water suction head can be extended square in the pit depression in foundation pit respectively and carry out accurate suction.

Description

Technical Field

[0001] This utility model belongs to the field of foundation pit drainage technology, and specifically relates to a foundation pit drainage device. Background Technology

[0002] After the foundation pit is excavated, groundwater seepage or rainwater accumulation will form water accumulation in the foundation pit. Currently, pumping equipment is commonly used to drain the water accumulation in the foundation pit.

[0003] Existing pumping equipment uses a pump and a single pipe inserted into the pit to pump water. The pump head is placed at the bottom of the pit. During the pumping process, it is very easy to suck up mud, sand and other debris that have settled at the bottom, causing blockage or even damage to the pipe and pump. The equipment has a high failure rate, requires frequent maintenance, and affects drainage efficiency. In addition, a single pump head is difficult to cover the uneven bottom surface of the pit, and cannot effectively pump out water in local low-lying areas, resulting in incomplete drainage and affecting subsequent construction. Utility Model Content

[0004] This utility model provides a foundation pit drainage device that can effectively prevent mud from clogging the bottom of the foundation pit and even damaging the pipe and pump structure, and can accurately pump out the water accumulated in the pit.

[0005] This utility model provides the following technical solution: a foundation pit drainage device, including a waterproof water pump and an inlet pipe. A hollow connecting ball is detachably connected to one side of the waterproof water pump. Several extension hoses are fixedly connected to the side wall of the hollow connecting ball. Plate-type water pump heads are fixedly connected to the movable ends of the several extension hoses. Floats are fixedly connected to the back of the several plate-type water pump heads.

[0006] A connecting pipe is fixedly connected to one side of the hollow connecting ball, and the connecting pipe is bolted to the water inlet pipe.

[0007] The hollow connecting ball has a ring fastener fixedly connected to its side wall.

[0008] The plate-type pump head has several pumping holes on the side away from the float, and the float has limit gripping grooves on both sides symmetrically.

[0009] The plate-type pump head is fixedly connected to a positioning rod on the side away from the float, and a limit plate is fixedly connected to the side wall of the positioning rod.

[0010] Each of the extended hoses has a pull rope on one side, and one end of the pull rope is tied to the ring buckle.

[0011] The other end of the pulling rope is fixedly connected to a connecting sleeve, which is rotatably connected to the outer wall of the extension hose.

[0012] The beneficial effects of this utility model are: 1. By extending the plate-type pump head with an extension hose and using a float to support its buoyancy, the plate-type pump head can be suspended in the water away from the bottom of the pit for high-power and rapid suction. This effectively avoids clogging of the bottom of the pit with mud, which could damage the pipes and pump structure, and prevents equipment failure from affecting the drainage efficiency of the pit.

[0013] 2. The flexible extension of multiple hoses, combined with the hollow plate structure of the plate-type water pump head, allows multiple plate-type water pump heads to extend horizontally into the pits and depressions in the foundation pit for precise suction, improving the drainage effect in the foundation pit. Moreover, there is no need to move the heavy waterproof water pump, making construction more convenient.

[0014] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the hollow connecting ball and the extension hose in this utility model; Figure 3 This is a schematic diagram of the extension hose in this utility model; Figure 4 This is a schematic diagram showing the state of the extended hose pumping water in a pitted environment in this utility model.

[0016] In the diagram: 1. Waterproof water pump; 11. Inlet pipe; 2. Hollow connecting ball; 21. Connecting pipe; 22. Ring buckle; 3. Extension hose; 31. Plate-type pump head; 311. Pump hole; 32. Float; 321. Limiting groove; 33. Positioning rod; 331. Limiting plate; 4. Pull rope; 41. Connecting sleeve. Detailed Implementation

[0017] Please see Figures 1-4 The present invention provides the following technical solution: a foundation pit drainage device, including a waterproof water pump 1 and an inlet pipe 11. A hollow connecting ball 2 is detachably connected to one side of the waterproof water pump 1. Several extension hoses 3 are fixedly connected to the side wall of the hollow connecting ball 2. Plate-type water pump heads 31 are fixedly connected to the movable ends of the several extension hoses 3. Float blocks 32 are fixedly connected to the back of the several plate-type water pump heads 31.

[0018] In this implementation scheme: the device is connected to a power source, which powers the waterproof water pump 1. The waterproof water pump 1 provides suction force to the hollow connecting ball 2. During operation, the drainage pipe is installed on the drainage connector of the waterproof water pump 1, and one end of the pull rope 4 is tied and fixed to the ring buckle 22. The extension length of the pull rope 4 is adjusted according to the size of the pit so that the extension hose 3 can only extend to the limited length, preventing the plate-type pump head 31 from drifting laterally and contacting the side wall of the pit. Then, the entire device is placed in the water in the pit. The plate-type pump head 31 and part of the extension hose 3 are suspended in the water under the buoyancy of the float 32, away from the bottom of the pit. After the waterproof water pump 1 is started, the water in the pit enters the plate-type pump head 31, and then enters the waterproof water pump 1 through the extension hose 3 and the hollow connecting ball 2 and is discharged.

[0019] During the initial suction stage, the waterproof water pump 1 can operate at high power to provide a stronger suction effect and improve the drainage effect. After the water level drops, the plate-type pump head 31 drops with the liquid level as the water level decreases. At this time, the waterproof water pump 1 can be adjusted to operate at low power by the controller.

[0020] When the bottom of the foundation pit is exposed and there is only local water accumulation in the pit, the length restriction of the pull rope 4 to the extension hose 3 can be lifted, the plate-type water pump head 31 can be placed in the pit, the water pumping hole 311 can be facing downward, the positioning rod 33 can be inserted into the soil at the bottom of the pit, and the water accumulation in the pit can be slowly pumped out with low power. During the pumping, the plate-type water pump head 31 should be kept away from direct contact with the soil at the bottom of the pit.

[0021] During production, the volume of the float 32 is adjusted according to the volume and weight of the materials used in the extension hose 3 and the plate pump head 31, so that the float 32 can generate enough buoyancy to lift the plate pump head 31 upward and detach it from the bottom wall of the pit.

[0022] A connecting pipe 21 is fixedly connected to one side of the hollow connecting ball 2, and the connecting pipe 21 is bolted to the water inlet pipe 11. The connection pipe 21 facilitates the connection between the hollow connecting ball 2 and the water inlet pipe 11. Flanges are provided at corresponding parts of the water inlet pipe 11 and the connecting pipe 21, and the water inlet pipe 11 and the connecting pipe 21 are then fixed with bolts.

[0023] The hollow connecting ball 2 has a ring 22 fixedly connected to its side wall; by setting the ring 22, it is easy to connect the pull rope 4 to the hollow connecting ball 2. The weight of the waterproof water pump 1 and the hollow connecting ball 2 is used as an anchor point to position one end of the pull rope 4, thereby limiting the extension range of the plate-type water pump head 31.

[0024] The plate-type pump head 31 has several pumping holes 311 on the side away from the float 32. The float 32 has limit grip grooves 321 on both sides. The pumping holes 311 are opened on one side. When pumping water from the pit, the pumping holes 311 are submerged in the water in the pit. The limit grip grooves 321 make it easy for personnel to hold the float and accurately place the plate-type pump head 31 in the pit.

[0025] A positioning rod 33 is fixedly connected to the side of the plate-type pump head 31 away from the float 32. A limiting piece 331 is fixedly connected to the side wall of the positioning rod 33. In use, the positioning rod 33 is inserted downward into the soil at the bottom of the pit until the limiting piece 331 contacts the soil. In specific operation, due to the larger area of ​​the limiting piece 331, greater resistance can be felt. By setting the positioning rod 33, the plate-type pump head 31 can be positioned to prevent the force exerted by the water flow on the plate-type pump head 31 from causing the plate-type pump head 31 to swing or twist. This ensures that the pumping hole 311 can always face downward to pump the water in the pit. The limiting piece 331 limits the insertion depth of the positioning rod 33, so that there is a distance between the pumping hole 311 and the soil at the bottom of the pit, preventing it from sticking to the soil and affecting the water entering the plate-type pump head 31.

[0026] Each of the several extension hoses 3 is equipped with a pull rope 4 on one side, and one end of the pull rope 4 is tied to the ring buckle 22. By setting the pull rope 4, the extension length of the extension hose 3 can be limited during the pumping of water. When the plate pump head 31 moves in the water under the suction force, it is prevented from moving to the edge of the pit and contacting the soil on the side wall of the pit.

[0027] The other end of the pull rope 4 is fixedly connected to a connecting sleeve 41, which is rotatably connected to the outer wall of the extension hose 3. By setting the connecting sleeve 41, it is easy to connect the pull rope 4 and the extension hose 3, and the extension hose 3 can be twisted without being restricted by the pull rope 4, so as to facilitate the adjustment of the orientation of the plate pump head 31.

[0028] The working principle and usage process of this utility model are as follows: The drainage pipe is installed on the drainage connector of the waterproof water pump 1. One end of the pull rope 4 is tied and fixed to the ring buckle 22. The extended length of the pull rope 4 is adjusted according to the size of the pit. Then, the entire device is placed into the water in the pit. The plate-type pump head 31 and part of the extension hose 3 are suspended in the water by the buoyancy of the float 32, away from the bottom of the pit. After the waterproof water pump 1 is started, the water in the pit enters the plate-type pump head 31 and flows through the extension hose 3 and the hollow connecting ball 2 into the waterproof water pump. Pump 1 discharges water in parallel. In the initial suction stage, the waterproof water pump 1 can operate at high power to provide a stronger suction effect. As the water level decreases, the plate-type pump head 31 drops with the liquid level. The controller adjusts the waterproof water pump 1 to operate at low power. When the bottom of the pit is exposed and there is only local water accumulation in the pit, the length restriction of the extension hose 3 on the pull rope 4 is released. The plate-type pump head 31 is placed in the pit with the pump hole 311 facing down. The positioning rod 33 is inserted into the soil at the bottom of the pit and slowly pumps the water in the pit at low power.

Claims

1. A foundation pit drainage device, comprising a waterproof water pump (1) and an inlet pipe (11), characterized in that: The waterproof water pump (1) is detachably connected to a hollow connecting ball (2) on one side. Several extension hoses (3) are fixedly connected to the side wall of the hollow connecting ball (2). The movable ends of the several extension hoses (3) are fixedly connected to plate-type water pump heads (31). The back of the several plate-type water pump heads (31) are fixedly connected to floats (32).

2. The foundation pit drainage device according to claim 1, characterized in that: A connecting pipe (21) is fixedly connected to one side of the hollow connecting ball (2), and the connecting pipe (21) is bolted to the water inlet pipe (11).

3. The foundation pit drainage device according to claim 1, characterized in that: The hollow connecting ball (2) has a ring (22) fixedly connected to its side wall.

4. The foundation pit drainage device according to claim 1, characterized in that: The plate-type pump head (31) has several pumping holes (311) on the side away from the float (32), and the float (32) has limit gripping grooves (321) on both sides symmetrically.

5. A foundation pit drainage device according to claim 1, characterized in that: The plate-type pump head (31) is fixedly connected to a positioning rod (33) on the side away from the float (32), and a limiting piece (331) is fixedly connected to the side wall of the positioning rod (33).

6. A foundation pit drainage device according to claim 3, characterized in that: Each of the extended hoses (3) is provided with a pull rope (4) on one side, and one end of the pull rope (4) is tied to the ring buckle (22).

7. A foundation pit drainage device according to claim 6, characterized in that: The other end of the pulling rope (4) is fixedly connected to a connecting sleeve (41), which is rotatably connected to the outer wall of the extension hose (3).

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