Foundation pit drainage device for constructional engineering

Abstract

The utility model discloses a foundation pit drainage device for constructional engineering, which comprises a foundation pit, a water suction pump and a filtering device, and the bottom of the water suction pump is fixedly connected with the left side of the top of the foundation pit. By arranging the air bag, before a user throws the filtering device into water accumulated in a foundation pit, the air bag filled with air is inserted into the mounting ring, then after the filtering device is thrown into the water, the filtering device floats on the upper layer of the water due to the floating force of the air bag in the water, and then the water suction pump is driven from top to bottom; the problems that after the filtering device is directly thrown into water, the filtering device can automatically sink into the bottom of the foundation pit and sink into a soil precipitation layer at the bottom of the foundation pit due to the weight of the filtering device, when a water suction pump pumps out accumulated water in a base body, the filtering device is extremely heavy in filtering work due to the coverage of soil, the water suction efficiency of the water suction pump is reduced, and the water suction efficiency of the water suction pump is reduced are solved. And the drainage working time of the foundation pit is prolonged, and the effect of assisting the filtering device in floating is achieved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a foundation pit drainage device for building engineering. Background Technology

[0002] An excavation pit is a pit dug at the foundation design location according to the foundation elevation and foundation plane dimensions. During the excavation and construction of the excavation pit, a large amount of water will be inside, requiring drainage devices to drain it.

[0003] For example, application number CN202320409594.6 describes a utility model relating to the field of building construction technology, specifically a foundation pit drainage device for building construction. The device includes a foundation pit, with an installation plate fixedly connected to the top of the pit, and a water pump installed on the top of the installation plate. The advantages are: during use, drainage is achieved through a pumping pipe. Impurities in the water pumped in are filtered through a filter screen. When a large amount of impurities accumulate on one side of the filter screen, the first motor is activated, causing the shaft to rotate the baffles upwards. The two baffles separate and are positioned on the inner wall of the filter box. Then, the pumping pipe is pulled upwards, placing the filter box on the water surface. At this point, the water in the filter box is discharged, and the impurities at the bottom of the filter screen fall to the bottom of the filter box. Afterwards, the first motor rotates the two baffles, causing one side of the two baffles to contact and block the impurities inside the filter box. This prevents impurities from being pumped back to the filter screen during subsequent pumping, reducing clogging and improving work efficiency.

[0004] Based on the search of the aforementioned patents and the findings of existing equipment, while the aforementioned equipment can solve the problem that after filtering out impurities such as gravel entering the pipe using filter plates, the impurities are discharged through the guide ring and continue to return to the foundation pit. During pumping, they are still sucked into the pumping pipe, reducing work efficiency, but during use, when the filter device is directly thrown into the water, it will automatically sink to the bottom of the foundation pit due to its own weight and be submerged in the soil sedimentation layer at the bottom of the foundation pit. As a result, when the water pump pumps out the water accumulated in the foundation pit, the filter device will be covered by soil, making the filtration work extremely difficult, which will reduce the pumping efficiency of the water pump and increase the drainage time of the foundation pit. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a foundation pit drainage device for construction engineering. This device has the advantage of having a floating auxiliary filter, thus solving the problem that when the filter is directly thrown into the water, it will automatically sink to the bottom of the foundation pit due to its own weight and be submerged in the soil sedimentation layer at the bottom of the foundation pit. Consequently, when the water pump pumps out the water accumulated in the foundation pit, the filter will be covered by soil, making the filtration work extremely difficult, which will reduce the pumping efficiency and increase the drainage time of the foundation pit.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a foundation pit drainage device for building construction, comprising a foundation pit, a water pump, and a filter device. The bottom of the water pump is fixedly connected to the left side of the top of the foundation pit. The filter device is located inside the foundation pit. The input end of the water pump is connected to the output end of the filter device through a conduit. Support rods are fixedly connected to the front and rear sides of the top of the filter device. Mounting rings are fixedly connected to the outer sides of the support rods. Airbags are provided on both sides of the filter device. The two sides of the surface of the airbags are slidably connected to the inner wall of the mounting ring. A quick-fixing mechanism is provided on the top of the mounting ring.

[0007] In a preferred embodiment of this invention, the quick-fixing mechanism includes a through hole, which is formed at the top of the inner wall of the mounting ring. A frustum is provided at the top of the mounting ring, and a sliding rod is fixedly connected to the bottom of the frustum. The bottom of the sliding rod surface is slidably connected to the inner wall of the through hole. A tension spring is fixedly connected to the top of the mounting ring, and the other end of the tension spring is fixedly connected to the bottom of the frustum.

[0008] As a preferred embodiment of the present invention, a U-shaped plate is provided on the outer side of the airbag, and the two sides of the inner side of the U-shaped plate are in contact with the outer side of the mounting ring.

[0009] As a preferred embodiment of this utility model, wing bolts are provided on both sides of the outer side of the U-shaped plate. The inner side of the wing bolts penetrates the inner side of the U-shaped plate and is threadedly connected to the inner wall of the mounting ring. The wing bolts are threadedly connected to the inner wall of the U-shaped plate.

[0010] As a preferred embodiment of this utility model, slots are provided on both sides of the top outer side of the U-shaped plate, and a plug is slidably connected to the inner wall of the slot. The inner side of the plug is fixedly connected to the top outer side of the mounting ring.

[0011] As a preferred embodiment of this invention, a rubber pad is fixedly connected to the bottom of the slide rod, and the bottom of the rubber pad is in contact with the top of the airbag.

[0012] As a preferred embodiment of this invention, the top of the airbag is provided with a connecting rod, and the two sides of the bottom of the connecting rod are fixedly connected to the top of the truncated cone.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, by incorporating an airbag, allows the user to insert an inflated airbag into the mounting ring before the filter device is thrown into the accumulated water in the foundation pit. When the filter device is thrown into the water, the buoyancy of the airbag causes it to float on the surface, allowing the water pump to remove the water from the pit from above. This solves the problem that if the filter device is thrown directly into the water, it will automatically sink to the bottom of the pit due to its own weight and become submerged in the soil sediment layer. Consequently, when the water pump removes the water, the filter device becomes heavily burdened by the soil, reducing the pump's efficiency and increasing the drainage time. This invention achieves the effect of assisting the filter device in floating.

[0015] 2. This utility model, by setting up a quick-fixing mechanism, allows the user to pull the truncated disc before inserting the airbag into the mounting ring. This causes the sliding rod to gradually withdraw from the mounting ring along the trajectory of the through hole, stretching the tension spring and generating a rebound force. Then, after the user inserts the airbag into the mounting ring, the truncated disc can be released, causing the tension spring to pull the truncated disc downward and push the sliding rod along the trajectory of the through hole into the mounting ring. This causes the sliding rod to press against the airbag and apply a clamping force, thus stably fixing the airbag in the mounting ring. This improves the stability of the filter device as it floats on the surface of the water.

[0016] 3. By setting up a U-shaped plate, the outer area of ​​the airbag is shielded and protected, thereby preventing the airbag from being punctured and deflating in the foundation pit with steel bars and wires, causing the filter device to sink to the bottom and lose the effect of the water pump drawing water out of the foundation pit from top to bottom. This improves the stability of the filter device floating on the water surface through the airbag. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the foundation pit of this utility model;

[0019] Figure 3 This is an exploded view of the parts of the frustum of this utility model.

[0020] In the diagram: 1. Foundation pit; 2. Water pump; 3. Filter device; 4. Support rod; 5. Mounting ring; 6. Airbag; 7. Quick fixing mechanism; 71. Through hole; 72. Frustum; 73. Slide rod; 74. Tension spring; 8. U-shaped plate; 9. Wing bolt; 10. Slot; 11. Insert rod; 12. Rubber pad; 13. Connecting rod. Detailed Implementation

[0021] 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.

[0022] like Figures 1 to 3 As shown, the present invention provides a drainage device for a foundation pit 1 in construction engineering, including a foundation pit 1, a water pump 2, and a filter device 3. The bottom of the water pump 2 is fixedly connected to the left side of the top of the foundation pit 1. The filter device 3 is located inside the foundation pit 1. The input end of the water pump 2 is connected to the output end of the filter device 3 through a conduit. Support rods 4 are fixedly connected to the front and rear sides of the top of the filter device 3. Mounting rings 5 ​​are fixedly connected to the outer side of the support rods 4. Airbags 6 are provided on both sides of the filter device 3. The two sides of the surface of the airbags 6 are slidably connected to the inner wall of the mounting rings 5. A quick fixing mechanism 7 is provided on the top of the mounting rings 5.

[0023] refer to Figure 3 The quick-fixing mechanism 7 includes a through hole 71, which is opened at the top of the inner wall of the mounting ring 5. A frustum 72 is provided at the top of the mounting ring 5. A slide rod 73 is fixedly connected to the bottom of the frustum 72. The bottom of the surface of the slide rod 73 is slidably connected to the inner wall of the through hole 71. A tension spring 74 is fixedly connected to the top of the mounting ring 5. The other end of the tension spring 74 is fixedly connected to the bottom of the frustum 72.

[0024] As a technical optimization of this utility model, by setting up a quick fixing mechanism 7, before the user inserts the airbag 6 into the mounting ring 5, the truncated cone 72 is pulled first, so that the sliding rod 73 is gradually pulled out from the mounting ring 5 along the trajectory of the through hole 71, so that the tension spring 74 is stretched, deformed, and generates a rebound force. Then, when the user inserts the airbag 6 into the mounting ring 5, the truncated cone 72 can be released, so that the tension spring 74 pulls the truncated cone 72 down and pushes the sliding rod 73 into the mounting ring 5 along the trajectory of the through hole 71, so that the sliding rod 73 abuts against the airbag 6 and applies a clamping force, thereby making the airbag 6 stably fixed in the mounting ring 5, thereby improving the stability of the filter device 3 floating on the water layer through the airbag 6.

[0025] refer to Figure 2 and Figure 3 A U-shaped plate 8 is provided on the outer side of the airbag 6, and the two sides of the inner side of the U-shaped plate 8 are in contact with the outer side of the mounting ring 5.

[0026] As a technical optimization of this utility model, by setting up a U-shaped plate 8, the outer area of ​​the airbag 6 is shielded and protected by the U-shaped plate 8, thereby preventing the airbag 6 from being punctured and deflating in the foundation pit 1 with steel bars and wires, causing the filter device 3 to sink to the bottom naturally and lose the effect of the water pump 2 pumping water out of the foundation pit 1 from top to bottom, thereby improving the stability of the filter device 3 floating on the water layer through the airbag 6.

[0027] refer to Figure 3 Both sides of the outer side of the U-shaped plate 8 are provided with wing bolts 9. The inner side of the wing bolts 9 penetrates the inner side of the U-shaped plate 8 and is threadedly connected to the inner wall of the mounting ring 5. The wing bolts 9 are threadedly connected to the inner wall of the U-shaped plate 8.

[0028] As a technical optimization of this utility model, by setting the butterfly bolt 9, the U-shaped plate 8 and the mounting ring 5 are firmly connected. Furthermore, the butterfly bolt 9 makes it easy to tighten by hand, which facilitates the connection and disassembly between the U-shaped plate 8 and the mounting ring 5. This makes it easier for the airbag 6 to be inserted into or pulled out of the mounting ring 5, thereby improving the user's ease of operation.

[0029] refer to Figure 3 Slots 10 are provided on both sides of the top outer side of the U-shaped plate 8. A rod 11 is slidably connected to the inner wall of the slot 10. The inner side of the rod 11 is fixedly connected to the top outer side of the mounting ring 5.

[0030] As a technical optimization of this utility model, by setting the slot 10 and the insertion rod 11, before the user uses the wing bolt 9 to connect the U-shaped plate 8 to the mounting ring 5, he first holds the U-shaped plate 8, aligns the slot 10 on it with the insertion rod 11 on the mounting ring 5, and inserts it. Then, the screw hole on the U-shaped plate 8 aligns with the screw hole on the mounting ring 5, which facilitates the wing bolt 9 to quickly connect the U-shaped plate 8 to the mounting ring 5, thereby further improving the user's ease of operation.

[0031] refer to Figure 3 A rubber pad 12 is fixedly connected to the bottom of the slide bar 73, and the bottom of the rubber pad 12 is in contact with the top of the airbag 6.

[0032] As a technical optimization of this utility model, by setting a rubber pad 12, when the slide rod 73 is inserted into the mounting ring 5 along the trajectory of the through hole 71 by the rebound force of the tension spring 74 and abuts against the airbag 6, the rubber pad 12 at the bottom of the slide rod 73 will replace the slide rod 73 in contact with the airbag 6, thereby preventing the airbag 6 from being directly compressed by the slide rod 73 and cut by its sharp edge, causing air leakage, thereby improving the service life of the airbag 6.

[0033] refer to Figure 3 The top of the airbag 6 is provided with a connecting rod 13, and the two sides of the bottom of the connecting rod 13 are fixedly connected to the top of the truncated cone 72.

[0034] As a technical optimization of this utility model, by setting the connecting rod 13, when the user needs to insert the airbag 6 into the mounting ring 5, the connecting rod 13 can be pulled to make the two truncated cones 72 rise at the same time, and the sliding rod 73 will be compressed, so that the user can pull the two truncated cones 72 directly with one hand and push the airbag 6 into the two mounting rings 5 ​​with the other hand, thereby improving the user's work efficiency.

[0035] The working principle and usage process of this utility model are as follows: When the user needs to pump water out of the foundation pit 1, first place the airbag 6 against the mounting ring 5, then pull the connecting rod 13 with one hand to raise the two truncated cones 72 simultaneously, and pull the sliding rod 73 along the trajectory of the through hole 71 to gradually pull it out of the mounting ring 5, causing the tension spring 74 to be stretched, deformed, and generate a rebound force. Then, the other hand can push the airbag 6 to pass into the two mounting rings 5. After that, the pulling of the connecting rod 13 can be released, so that the rebound force of the tension spring 74 is released, pulling the truncated cones 72 down and pushing the sliding rod 73 along the trajectory of the through hole 71 into the mounting ring 5. Subsequently, the rubber pad 12 at the bottom of the sliding rod 73 abuts against the airbag 6, applying a clamping force. This allows the airbag 6 and the mounting ring 5 to be stably connected under the influence of external force. At this time, the U-shaped plate 8 can be held and its slot 10 can be aligned with the insertion rod 11 on the mounting ring 5 and inserted so that the screw hole on the U-shaped plate 8 aligns with the screw hole on the mounting ring 5. Finally, the wing bolt 9 can be screwed in to stably connect the U-shaped plate 8 and the mounting ring 5, thereby shielding and protecting the outside of the airbag 6. At this time, the filter device 3 can be thrown into the water, allowing it to float on the surface of the water due to the floating ability of the airbag 6. Now the water pump 2 can be started, allowing the water pump 2 to pump the water out of the pit 1 from top to bottom through the filter device 3 and the airbag 6, thus providing the advantage of assisting the filter device to float.

[0036] In summary, this foundation pit drainage device for construction projects, by incorporating an airbag 6, allows the user to insert the inflated airbag 6 into the mounting ring 5 before throwing the filter device 3 into the accumulated water in the foundation pit 1. Subsequently, when the filter device 3 is thrown into the water, the buoyancy of the airbag 6 causes it to float on the surface, allowing the water pump 2 to pump the water out of the foundation pit 1 from top to bottom. This solves the problem that if the filter device is directly thrown into the water, it will automatically sink to the bottom of the foundation pit due to its own weight and be submerged in the soil sediment layer. Consequently, when the water pump is pumping out the accumulated water, the filter device will be covered by soil, making the filtration work extremely difficult, reducing the pumping efficiency, and increasing the drainage time of the foundation pit.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foundation pit drainage device for construction engineering, comprising a foundation pit (1), a water pump (2), and a filtration device (3), characterized in that: The bottom of the water pump (2) is fixedly connected to the left side of the top of the pit (1). The filter device (3) is located inside the pit (1). The input end of the water pump (2) is connected to the output end of the filter device (3) through a conduit. Support rods (4) are fixedly connected to the front and rear sides of the top of the filter device (3). An installation ring (5) is fixedly connected to the outer side of the support rod (4). Airbags (6) are provided on both sides of the filter device (3). The two sides of the surface of the airbag (6) are slidably connected to the inner wall of the installation ring (5). A quick fixing mechanism (7) is provided on the top of the installation ring (5).

2. The foundation pit drainage device for building construction according to claim 1, characterized in that: The quick-fixing mechanism (7) includes a through hole (71) which is opened at the top of the inner wall of the mounting ring (5). A frustum (72) is provided at the top of the mounting ring (5). A slide rod (73) is fixedly connected to the bottom of the frustum (72). The bottom of the surface of the slide rod (73) is slidably connected to the inner wall of the through hole (71). A tension spring (74) is fixedly connected to the top of the mounting ring (5). The other end of the tension spring (74) is fixedly connected to the bottom of the frustum (72).

3. The foundation pit drainage device for building engineering according to claim 1, characterized in that: The airbag (6) is provided with a U-shaped plate (8) on its outer side, and the two sides of the inner side of the U-shaped plate (8) are in contact with the outer side of the mounting ring (5).

4. A foundation pit drainage device for building construction according to claim 3, characterized in that: Both sides of the outer side of the U-shaped plate (8) are provided with wing bolts (9). The inner side of the wing bolts (9) penetrates the inner side of the U-shaped plate (8) and is threaded to the inner wall of the mounting ring (5). The wing bolts (9) are threaded to the inner wall of the U-shaped plate (8).

5. A foundation pit drainage device for building construction according to claim 3, characterized in that: Slots (10) are provided on both sides of the top outer side of the U-shaped plate (8). A rod (11) is slidably connected to the inner wall of the slot (10). The inner side of the rod (11) is fixedly connected to the top outer side of the mounting ring (5).

6. A foundation pit drainage device for building construction according to claim 2, characterized in that: A rubber pad (12) is fixedly connected to the bottom of the slide bar (73), and the bottom of the rubber pad (12) is in contact with the top of the airbag (6).

7. A foundation pit drainage device for building construction according to claim 2, characterized in that: The airbag (6) is provided with a connecting rod (13) at the top, and the two sides of the bottom of the connecting rod (13) are fixedly connected to the top of the truncated cone (72).

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