Auxiliary anti-floating device for basement
By setting up anti-floating columns and filter structures in the anti-floating device, a water conduction cavity is formed, and multiple branch pipes and main pipes are used for grading drainage, the problem of easy blockage of water conduction pipes or pumps is solved, and the graded drainage of groundwater and the improvement of anti-floating effect is achieved.
Patent Information
- Application Number
- CN202421693046.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-06-03
- Estimated Expiration
- 2034-07-17
AI Technical Summary
In existing anti-floating devices, the water conduit pipe or pump is prone to blockage, resulting in the impact of the anti-floating effect and the inability to achieve graded drainage of groundwater.
A basement auxiliary anti-floating device is designed, including a foundation pit, a pressure limiting well, a water conduit pipe and a water pump. An anti-floating column is set up at the bottom of the pressure limiting well. A filter structure is set up at the position of the anti-floating column to form a water conduit cavity. The water inlet end of the water conduit is placed in the water conduit cavity, and the water inlet is drained in a graded manner through multiple branch pipes and main pipes, and a switch valve is set to facilitate the discharge and blockage.
Effectively prevent blockage of water conduit pipes or pumps during drainage, avoid the impact of anti-floating effect, and realize the graded drainage of groundwater, improving the stability and efficiency of anti-floating device.
Smart Images
Figure CN222936060U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of anti - floating devices, and specifically relates to a basement auxiliary anti - floating device for basement auxiliary anti - floating. Background Technique
[0002] When the rainy season comes, rainwater seeps into the foundation pit from the basement exterior wall and then seeps under the basement floor slab. Due to the water pressure, the basement floor slab arches upward and deforms, further expanding the water inlet channel. Eventually, the basement floor slab cracks, and a large amount of groundwater surges in. In severe cases, the basement may even float as a whole under the action of water pressure, resulting in damage to structural members and endangering the safety of life and property.
[0003] The underground engineering pressure - limiting anti - floating technology solves the anti - floating problem of the basement by setting pressure - limiting wells on the basement floor slab. During rainfall, the basement floor slab rises continuously under the action of water buoyancy, the pressure - limiting valve opens, and groundwater (the groundwater in the foundation pit collected at the position of the pressure - limiting well) is discharged into the pressure - limiting well through the water guide pipe, so that the buoyancy force on the structure is always less than the structural bearing capacity, ensuring the safety and normal use of the basement structure.
[0004] In the prior art, crushed stones need to be filled in the foundation pit for filtering impurities (including sand and gravel, etc. Among them, small crushed stones are also prone to become clogging impurities) to avoid problems such as blockage or easy failure of the pump. However, there are the following technical problems with this method:
[0005] 1. Some impurities will flow with the flow of groundwater, which is also likely to cause blockage of the water guide pipe or / and the pump, thus affecting the anti - floating effect.
[0006] 2. It is impossible to achieve hierarchical drainage of groundwater. Content of the Utility Model
[0007] The purpose of the utility model is to provide a basement auxiliary anti - floating device to solve the problem that the water guide pipe or / and the pump of the existing anti - floating device are prone to blockage, thus affecting the anti - floating effect.
[0008] In order to achieve the above - mentioned purpose, the technical solution adopted by the utility model is as follows:
[0009] A basement auxiliary anti - floating device includes a foundation pit, a pressure - limiting well arranged in the foundation pit, a water guide pipe connecting the foundation pit and the pressure - limiting well, and a water pump connected to the water guide pipe. A plurality of anti - floating columns extending below the foundation pit are arranged at the bottom of the pressure - limiting well. A filtering structure is arranged at the position of the anti - floating column between the foundation pit and the pressure - limiting well. The filtering structure and the foundation pit and the pressure - limiting well cooperate to form a water - guiding cavity, and the water inlet end of the water guide pipe is placed in the water - guiding cavity.
[0010] Furthermore, the plurality of anti - floating columns are arranged in two rows.
[0011] Further, the filtering structure includes a coarse filtering structure on one side of the gravel in the foundation pit and a fine filtering structure on the other side, and a filtering cavity is formed between the coarse filtering structure and the fine filtering structure.
[0012] Further, the filtering structure is arranged on one side of each row of anti-floating columns, or the coarse filtering structure and the fine filtering structure are respectively arranged on the opposite sides of each row of anti-floating columns, and a spacing is formed between the filtering structure and the anti-floating columns.
[0013] Further, a water collecting cavity with an open top is arranged at the upper position of the pressure limiting well. The water collecting cavity includes an inlet and an outlet, and a filter screen is arranged at the outlet;
[0014] The water guide pipe includes a water guide pipe A with its water inlet end placed in the water guide cavity and its water outlet end placed in the pressure limiting well, and a water guide pipe B with its water inlet end placed in the filtering cavity and its water outlet end connected to the inlet of the water collecting cavity;
[0015] The water pump includes a water pump A connected to the water guide pipe A and a water pump B connected to the water guide pipe B.
[0016] Further, the water guide pipe B includes a plurality of branch pipes communicating with the filtering cavity, a main pipe connected to the branch pipes, and the water pump B is connected to the main pipe.
[0017] Further, a switching valve is arranged on each of the branch pipes on one side of the pressure limiting well.
[0018] Further, the heights of the branch pipes from the bottom of the filtering cavity are the same or different.
[0019] Compared with the prior art, the advantages of the present utility model are as follows:
[0020] First, the purpose of setting the anti-floating columns in the present utility model is to facilitate increasing the bearing capacity of the pressure limiting well (to avoid the problem of weak bearing capacity at the position of the subsequent formed filtering cavity), that is, to increase its anti-floating effect. At the same time, a filtering structure is arranged at the position of the anti-floating columns to form a water guide cavity, so as to prevent blockage when the water guide pipe or / and the pump drain water, thereby avoiding the problem that the anti-floating effect is affected;
[0021] Second, the multiple anti-floating columns in the present utility model are arranged in two rows, which is convenient to set and also convenient for subsequent layout of the water guide pipes;
[0022] Third, the filtering structure in the present utility model includes a coarse filtering structure and a fine filtering structure, and a filtering cavity is formed between the coarse filtering structure and the fine filtering structure. The purpose is to facilitate grading filtration of impurities and also facilitate the accumulation of fine impurities in the filtering cavity, so as to avoid the problem that the fine filtering structure is covered with impurities and the water filtering speed into the water guide cavity is too slow;
[0023] IV. The present utility model defines the positions of the filtering structure and the anti-floating columns, facilitating the selection of the installation positions according to practical requirements.
[0024] V. The purpose of setting the water collection chamber in the present utility model is to facilitate the extraction of the liquid with impurities in the filtering chamber, filter it through the filter screen to clean the impurities, and discharge the groundwater through multiple pipes to quickly discharge the groundwater.
[0025] VI. The water guide pipe B in the present utility model includes branch pipes and a main pipe, and there are multiple branch pipes, aiming to avoid the problem of easy blockage that may occur with a single branch pipe.
[0026] VII. The purpose of setting the on-off valves on each branch pipe in the present utility model is to facilitate blockage removal for precise maintenance of each branch pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.
[0028] Figure 1 is a schematic structural diagram of the present utility model;
[0029] Figure 2 is Figure 1 a sectional view of
[0030] Figure 3 is Figure 1 a partial structural diagram of
[0031] Figure 4 is Figure 3 a structural diagram of one side at the bottom of
[0032] In the figure: 1 - foundation pit, 2 - pressure limiting well, 3 - anti-floating column, 4 - filtering structure, 5 - water guide cavity, 6 - coarse filtering structure, 7 - fine filtering structure, 8 - filtering chamber, 9 - water collection chamber, 10 - filter screen, 11 - water guide pipe A, 12 - water guide pipe B, 13 - water pump A, 14 - water pump B, 15 - branch pipe, 16 - main pipe, 17 - on-off valve. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0035] In the description of the present utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the utility model product is usually placed during use. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.
[0036] In addition, if terms such as "first", "second", "third", etc. are used only for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.
[0037] In addition, if terms such as "horizontal", "vertical", "hanging" do not mean that the component is required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0038] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected to" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0039] It should be noted that the features in the embodiments of the present utility model can be combined with each other without conflict.
[0040] Embodiment 1
[0041] In order to solve the problem that the water conduits or / and pumps of the existing anti-floating devices are prone to blockage, which affects anti-floating. As Figures 1-4 shown, a basement auxiliary anti-floating device is provided, including a foundation pit 1, a pressure-limiting well 2 arranged in the foundation pit 1 (crushed stones are filled between the pressure-limiting well and the foundation pit), a water conduit connecting the foundation pit 1 and the pressure-limiting well 2, and a water pump connected to the water conduit. Multiple anti-floating columns 3 extending below the foundation pit 1 are arranged at the bottom of the pressure-limiting well 2. A filtering structure 4 is arranged at the position of the anti-floating column 3 between the foundation pit and the pressure-limiting well. The filtering structure 4 and the foundation pit 1 and the pressure-limiting well 2 cooperate to form a water guiding cavity 5, and the water inlet end of the water conduit is placed in the water guiding cavity 5.
[0042] In practice, groundwater flows into the space between the foundation pit and the pressure-limiting well. After preliminary filtering of impurities through crushed stones, it is further filtered through the filtering structure. After filtration, the filtered groundwater (i.e., the groundwater in the water guiding cavity) is pumped into the pressure-limiting well from the water conduit by the water pump (the cooperation between the water pump and the water conduit is existing and will not be elaborated here), and then the groundwater is pumped out of the pressure-limiting well through the pumping structure of the pressure-limiting well (which is existing and will not be elaborated here). The purpose of setting the anti-floating columns in this embodiment is to facilitate increasing the bearing capacity of the pressure-limiting well, avoiding the problem of weak bearing capacity at the position of the subsequent formed filtering cavity, that is, increasing its anti-floating effect. At the same time, a filtering structure is arranged at the position of the anti-floating column to form a water guiding cavity, so as to prevent blockage when the water conduit or / and the pump drain water, thereby avoiding the problem of affecting the anti-floating effect.
[0043] Embodiment 2
[0044] On the basis of Embodiment 1, multiple anti-floating columns 3 are arranged in two rows, which is convenient for setting and also facilitates the subsequent layout of the water conduits. Of course, it is not excluded that other structures may also be possible, such as arranging along the circumference.
[0045] Embodiment 3
[0046] On the basis of Embodiment 2, the filtering structure 4 includes a coarse filtering structure 6 on one side of the crushed stones in the foundation pit 1 and a fine filtering structure 7 on the other side. A filtering cavity 8 is formed between the coarse filtering structure 6 and the fine filtering structure 7. The purpose is to facilitate the hierarchical filtering of impurities and also facilitate the accumulation of fine impurities in the filtering cavity, so as to avoid the problem that the fine filtering structure is covered with impurities and the speed of water filtered into the water guiding cavity is too slow, that is, first filtered by the coarse filtering structure 6 and then filtered by the fine filtering structure 7. The filtering structure 4 is arranged on one side (referring to the inner or outer side) of each row of anti-floating columns 3, or the coarse filtering structure 6 and the fine filtering structure 7 are respectively arranged on the opposite sides of each row of anti-floating columns 3, and a spacing is formed between them and the anti-floating columns 3. Limiting the position of the filtering structure and the anti-floating column is convenient for selecting the setting position according to practical needs.
[0047] Embodiment 4
[0048] On the basis of Embodiment 3, a water collecting cavity 9 with an open top is arranged at the upper position of the pressure-limiting well 2. The water collecting cavity 9 includes an inlet and an outlet, and a filter screen 10 is arranged at the outlet; the water guide pipe includes a water guide pipe A11 with the water inlet end placed in the water guide cavity 5 and the water outlet end placed in the pressure-limiting well 2, and a water guide pipe B12 with the water inlet end placed in the filtering cavity 8 and the water outlet end connected to the inlet of the water collecting cavity 9; the water pump includes a water pump A13 connected to the water guide pipe A11 and a water pump B14 connected to the water guide pipe B12.
[0049] The purpose of setting the water collecting cavity is to facilitate the extraction of the liquid with impurities in the filtering cavity, and discharge it into the pressure-limiting well through the filtration of the filter screen, so as to realize the impurity cleaning, and discharge the groundwater through multiple pipelines, so as to quickly discharge the groundwater.
[0050] In practice, the groundwater in the water guide cavity 5 is extracted by the cooperation of the water pump A13 and the water guide pipe A11, and the groundwater in the filtering cavity is extracted by the cooperation of the water pump B14 and the water guide pipe B12. In order to realize the hierarchical extraction of groundwater with different impurities, so as to avoid the problems of blockage or failure in all cases, which is likely to cause poor pressure-limiting effect.
[0051] Embodiment 5
[0052] On the basis of Embodiment 4, the water guide pipe B12 includes a plurality of branch pipes 15 communicating with the filtering cavity 8, a main pipe 16 connected to the branch pipes 15, and the water pump B14 is connected to the main pipe 16, aiming to avoid the problem of easy blockage of a single branch pipe. On one side of the pressure-limiting well 2, a switching valve 17 is arranged on each of the branch pipes 15, and the discharge of groundwater is detected by opening the switching valve on one branch pipe, so as to realize the blockage discharge detection. In practice, the heights of the branch pipes 15 and the bottom of the filtering cavity 8 are the same or different. In the case of different heights, it is convenient to realize the hierarchical discharge of the groundwater with impurities.
Claims
1. A basement auxiliary anti-floating device, comprising a foundation pit (1), a pressure-limiting well (2) arranged in the foundation pit (1), a water pipe connecting the foundation pit (1) and the pressure-limiting well (2), and a water pump connected to the water pipe, characterized in that: The bottom of the pressure-limiting well (2) is provided with a plurality of anti-floating columns (3) extending below the foundation pit (1); a filtering structure (4) is provided at the position of the anti-floating columns (3) between the foundation pit and the pressure-limiting well; the filtering structure (4) cooperates with the foundation pit (1) and the pressure-limiting well (2) to form a water-conducting cavity (5); and the water inlet end of the water-conducting pipe is placed in the water-conducting cavity (5).
2. The basement auxiliary anti-floating device according to claim 1, characterized in that: The plurality of anti-floating columns (3) are arranged in two rows.
3. The basement auxiliary anti-floating device according to claim 1, characterized in that: The filtering structure (4) comprises a coarse filtering structure (6) located on one side of the gravel in the foundation pit (1) and a fine filtering structure (7) located on the other side, and a filtering cavity (8) is formed between the coarse filtering structure (6) and the fine filtering structure (7).
4. The basement auxiliary anti-floating device according to claim 3 is characterized by: The filtering structure (4) is arranged on one side of each row of anti-floating columns (3), or the coarse filtering structure (6) and the fine filtering structure (7) are respectively arranged on opposite sides of each row of anti-floating columns (3), and a spacing is formed between the anti-floating columns (3).
5. The basement auxiliary anti-floating device according to claim 1, characterized in that: A water collecting chamber (9) with a top opening is arranged at the upper part of the pressure limiting well (2); the water collecting chamber (9) comprises an inlet and an outlet, and a filter screen (10) is arranged at the outlet; the water guide pipe comprises a water guide pipe A (11) whose water inlet end is arranged in the water guide chamber (5) and whose water outlet end is arranged in the pressure limiting well (2), and a water guide pipe B (12) whose water inlet end is arranged in the filter chamber (8) and whose water outlet end is connected to the inlet of the water collecting chamber (9); the water pump comprises a water pump A (13) connected to the water guide pipe A (11) and a water pump B (14) connected to the water guide pipe B (12); the water guide pipe B (12) comprises a plurality of branch pipes (15) connected to the filter chamber (8), a main pipe (16) connected to the branch pipes (15), and the water pump B (14) is connected to the main pipe (16).
6. The basement auxiliary anti-floating device according to claim 5, characterized in that: Located on one side of the pressure limiting well (2), each branch pipe (15) is provided with an on-off valve (17).
7. The basement auxiliary anti-floating device according to claim 5, characterized in that: The heights of the branch pipes (15) and the bottoms of the filter chamber (8) are the same or different.