Novel drainage device for hydraulic reclamation cofferdam

Abstract

The utility model relates to the technical field of hydraulic reclamation cofferdams, in particular to a novel drainage device for a hydraulic reclamation cofferdam, which comprises a drainage pipe mounted on a water suction pump, a filter is arranged at the water suction end of the water suction pump, a water suction pipe is arranged at one end of the filter, and one end of the water suction pipe is inserted into a balancing weight. A water inlet bin is formed in the balancing weight, a U-shaped air cushion is arranged at the bottom of the balancing weight, and water inlet holes are formed in the balancing weight in the circumferential direction. According to the novel drainage device for the hydraulic reclamation cofferdam, the balancing weight and the U-shaped air cushion are arranged in a matched mode, so that the device floats in the water body, the frame of the U-shaped air cushion is slightly lower than the water surface, clear water precipitated on the upper layer of the cofferdam body can overflow into the U-shaped air cushion and is pumped away through the water suction pump and the water suction pipe, and silt is still left in the cofferdam; and the buoyancy of the U-shaped air cushion can realize that the device automatically rises along with the rising of the weir body, additional intervention of operators is not needed, and drainage is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic filling cofferdams, in particular to a new drainage device for hydraulic filling cofferdams. Background Technique

[0002] A large amount of investment in national infrastructure has brought many construction projects to the construction industry. However, due to the poor original landform state, unreasonable development and low effective utilization rate of land resources (water area and land area) in some areas, the effective implementation of construction projects has been restricted invisibly. All along, hydraulic filling cofferdams such as reclamation from the sea and land filling in pits are common construction methods in water conservancy projects. It forms a cofferdam by using a dredger or other equipment to pump sediment from the water area and transport it through a pipeline to a designated location for stacking. And the drainage setting problem has always been one of the main problems related to the smooth progress of the hydraulic filling cofferdam project.

[0003] Because the drainage of the hydraulic filling cofferdam needs to consider that the sediment cannot drain and flows back, it is mostly after precipitation, and then the clear water on the upper layer is separately discharged through the drain outlet. As the construction progresses, the cofferdam will pile up higher and higher. At present, the traditional drain outlet needs to be manually raised as the height of the cofferdam increases, which increases the workload of the workers. Especially for the cofferdam body with too much sediment, the danger of the operators is higher. In view of this situation, a new drainage device for hydraulic filling cofferdams is needed. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a new drainage device for hydraulic filling cofferdams, which solves the problems put forward in the above background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A new drainage device for hydraulic filling cofferdams includes a drain pipe installed on a water pump. A filter is arranged at the water pumping end of the water pump. One end of the filter is provided with a water suction pipe. One end of the water suction pipe is inserted into the inside of a counterweight. An inlet chamber is opened inside the counterweight. A U-shaped air cushion is arranged at the bottom of the counterweight. Water inlet holes are arranged around the counterweight.

[0006] Optionally, a filter block is arranged inside the filter, and a protective pad for strengthening protection is arranged on the outer surface of the U-shaped air cushion.

[0007] Optionally, a plurality of inflatable chambers are arranged inside the U-shaped air cushion, and a baffle is arranged on the surface of the water suction pipe.

[0008] Optionally, an inflation port is arranged at the top of the U-shaped air cushion, and a sealing plug is arranged inside the inflation port.

[0009] Optionally, the counterweight and the inflation port are both located at the center of the U-shaped air cushion, and the counterweight covers the inflation port.

[0010] Optionally, a connecting ring is provided on the surface of the U-shaped air cushion, and the connecting ring is connected to the counterweight block through a snap button.

[0011] The utility model provides a new type of drainage device for blown fill cofferdam, which has the following beneficial effects:

[0012] 1. The new drainage device of the blown-fill cofferdam is designed to float in the water by coordinating the counterweight block and the U-shaped air cushion. The frame height of the U-shaped air cushion is slightly lower than the water surface height, which allows the clean water after sedimentation on the upper layer of the weir to overflow into the U-shaped air cushion and be pumped away by the water pump and the water pipe, while the silt remains in the weir. The buoyancy of the U-shaped air cushion can enable the device to rise automatically as the weir rises, without the need for additional intervention by the operator, which greatly facilitates drainage and improves the safety of the operator. The filter block in the filter and the water inlet hole on the counterweight block are set to perform multi-layer filtration on the extracted clean water, effectively preventing debris from entering the water pump and affecting its operation.

[0013] 2. The new drainage device of the blown-fill cofferdam is equipped with multiple air chambers. When one air chamber in the U-shaped air cushion leaks, the other air chambers will not be affected by the leak and will not affect the buoyancy of the entire U-shaped air cushion too much. The connection ring and snap button are set to facilitate the installation and removal of the counterweight on the U-shaped air cushion. The protection of the outer surface of the U-shaped air cushion is further strengthened by the setting of the protective pad to prevent it from being punctured by sharp stones or branches. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the filter of the utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of a U-shaped air cushion of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the inflatable warehouse of the utility model.

[0019] In the figure: 1. Water pump; 2. Drain pipe; 3. Filter; 4. Suction pipe; 5. Counterweight; 6. Water inlet chamber; 7. U-shaped air cushion; 8. Water inlet hole; 9. Filter block; 10. Inflation chamber; 11. Inflation port; 12. Sealing plug; 13. Connecting ring; 14. Snap fastener; 15. Protective pad; 16. Baffle plate. Detailed implementation

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0021] Please refer to Figures 1 to 5 , the present invention provides a technical solution: a new type of drainage device for land reclamation cofferdam, including a drain pipe 2 installed on a water pump 1. A filter 3 is provided at the water suction end of the water pump 1. A filter block 9 is arranged inside the filter 3. Through the filter block 9 in the filter 3 and the water inlet hole 8 on the counterweight 5, multi-layer filtration of the extracted clear water is carried out, effectively preventing sundries from entering the water pump and affecting its operation. One end of the filter 3 is provided with a suction pipe 4. One end of the suction pipe 4 is inserted into the inside of the counterweight 5. The circumferential direction of the counterweight 5 is provided with water inlet holes 8. A baffle plate 16 is arranged on the surface of the suction pipe 4 to enable the suction pipe 4 to always remain inserted in the counterweight 5. An water inlet chamber 6 is opened inside the counterweight 5, so that water first enters the water inlet chamber 6 through the water inlet hole 8, and the water inlet hole 8 on the counterweight 5 can block a part of sundries from entering;

[0022] A U-shaped air cushion 7 is arranged at the bottom of the counterweight 5. Through the buoyancy of the U-shaped air cushion 7 itself, it can be located above the silt in the cofferdam body. Then, through appropriate counterweight of the counterweight 5, the height of the frame of the U-shaped air cushion 7 can be pressed slightly lower than the water surface height, so that only the clear water precipitated on the upper layer of the cofferdam body can overflow into the U-shaped air cushion 7 and be pumped away through the water pump 1 and the suction pipe 4, while the sediment remains in the cofferdam. The buoyancy of the U-shaped air cushion 7 can enable the device to rise as the cofferdam body rises, without the need for additional intervention by the operator, greatly facilitating drainage and improving the safety of the operator;

[0023] The interior of the U-shaped air cushion 7 is provided with a plurality of inflatable chambers 10. By setting the plurality of inflatable chambers 10, when an inflatable chamber 10 in the U-shaped air cushion 7 leaks, the other inflatable chambers 10 will not be interfered with by the leak, and the buoyancy of the entire U-shaped air cushion 7 will not be affected too much. The top of the U-shaped air cushion 7 is provided with an inflating port 11, and a sealing plug 12 is provided inside the inflating port. The counterweight 5 and the inflating port 11 are both located at the center of the circle of the U-shaped air cushion 7, so that the center of gravity of the counterweight 5 is located at the center of the U-shaped air cushion 7. The inflatable chamber 10 is fan-shaped, and the inflating port 11 is located at the intersection of the plurality of inflatable chambers 10, so that when inflating, multiple inflatable chambers 10 can be inflated at one time, shortening the inflation time, and the counterweight 5 is covered above the inflating port 11 to protect the inflating port 11 and the sealing plug 12;

[0024] The surface of the U-shaped air cushion 7 is provided with a connecting ring 13, which is connected to the counterweight 5 through a snap 14. The setting of the connecting ring 13 and the snap 14 facilitates the installation and removal of the counterweight 5 on the U-shaped air cushion 7. The outer surface of the U-shaped air cushion 7 is provided with a protective pad 15 for enhanced protection. The setting of the protective pad 15 further strengthens the protection of the outer surface of the U-shaped air cushion 7 to prevent it from being pierced by sharp stones or branches.

[0025] In the present invention, the working steps of the device are as follows:

[0026] First, remove the sealing plug 12, inflate the air chamber 10 in the U-shaped air cushion 7 through the inflation port 11, and then install the sealing plug 12;

[0027] Then insert the water pump pipe 4 into the counterweight 5, match the filter 3 to the water pump 1, and then install the counterweight 5 on the U-shaped air cushion 7 through the snap 14 on the connecting ring 13, so that the U-shaped air cushion 7 and the counterweight 5 are pushed into the water in the weir body;

[0028] The weight of the counterweight 5 makes the frame height of the U-shaped air cushion 7 entering the water slightly lower than the water surface, allowing only the clear water after the sedimentation on the upper layer of the weir to overflow into the U-shaped air cushion 7 and then enter the water inlet chamber 6 of the counterweight 5 through the water inlet hole 8;

[0029] Install the drain pipe 2 at the water outlet of the water pump 1, start the water pump 1, and draw water from the water inlet tank 6 through the water pipe 4 and discharge it out of the weir.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A new drainage device for hydraulic fill cofferdam, comprising a drain pipe (2) installed on a water pump (1), characterized in that: A filter (3) is provided at the water pumping end of the water pump (1). One end of the filter (3) is provided with a water suction pipe (4). One end of the water suction pipe (4) is inserted into the interior of a counterweight block (5). An intake chamber (6) is formed inside the counterweight block (5). A U-shaped air cushion (7) is provided at the bottom of the counterweight block (5). Water inlet holes (8) are provided in the circumferential direction of the counterweight block (5).

2. The novel drainage device for hydraulic filling cofferdam according to claim 1, wherein: A filter block (9) is provided inside the filter (3). A protective pad (15) for strengthening protection is provided on the outer surface of the U-shaped air cushion (7).

3. The novel drainage device for hydraulic fill cofferdam according to claim 1, characterized in that: A plurality of inflatable chambers (10) are provided inside the U-shaped air cushion (7). A baffle (16) is provided on the surface of the water suction pipe (4).

4. A novel drainage device for a hydraulic fill cofferdam according to claim 1, characterized in that: An inflation port (11) is provided at the top of the U-shaped air cushion (7). A sealing plug (12) is provided inside the inflation port.

5. The novel drainage device for a hydraulic fill cofferdam according to claim 4, wherein: Both the counterweight block (5) and the inflation port (11) are located at the center of the U-shaped air cushion (7), and the counterweight block (5) covers the inflation port (11).

6. The novel drainage device for hydraulic fill cofferdam according to claim 1, wherein: A connecting ring (13) is provided on the surface of the U-shaped air cushion (7). The connecting ring (13) is connected to the counterweight block (5) by a snap fastener (14).

Images