Foundation pit dewatering anti-blocking device
By designing drainage ditches, collection wells, and pump systems in the foundation pit, the problems of easy blockage and large seepage in the drainage ditches were solved, achieving efficient drainage of seepage in the foundation pit, ensuring smooth construction and stable soil structure.
Patent Information
- Application Number
- CN202520518609.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-24
AI Technical Summary
The existing drainage ditches for foundation pits are prone to blockage and water accumulation due to large seepage, which affects the construction progress and the safety of the soil structure.
Design a foundation pit dewatering and anti-clogging device, including a drainage ditch, a collection well, a protective cover, a sealing cover, a pump body, and a pumping pipe. The device uses an interception net to intercept construction waste, a guide slope to guide the water flow, and a pump body to extract the water flow, thereby preventing blockage and efficiently draining water.
It effectively prevents blockage of drainage ditches and sump pits, ensures smooth drainage of seepage water in the foundation pit, avoids water accumulation and flooding, and guarantees construction progress and soil structure safety.
Smart Images
Figure CN223907533U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a foundation pit dewatering technical field, concretely relates to a foundation pit dewatering anti -blocking device. BACKGROUND
[0002] The core purpose of the foundation pit dewatering is to effectively reduce the groundwater level inside and outside the foundation pit, prevent the groundwater seepage from causing the water accumulation in the foundation pit, and further avoid the construction of the foundation pit from being blocked, so as to ensure that the excavation operation process of the foundation pit is not affected. In order to realize the effective drainage of the foundation pit, a drainage open ditch is usually opened at the bottom of the foundation pit, and the accumulated water in the open ditch is pumped out of the foundation pit through a water pump and a water suction pipe, so as to maintain the dry state inside the foundation pit.
[0003] In the actual application process, the existing drainage open ditch still has some problems. First, due to the complex construction site environment, construction waste is easy to enter the drainage open ditch, and the accumulation of construction waste is easy to cause the drainage open ditch to be blocked, which seriously affects the drainage operation efficiency of the foundation pit. Once the drainage open ditch is blocked, the accumulated water in the foundation pit cannot be discharged in time, which causes a large amount of water to accumulate in the foundation pit, and threatens the construction progress and construction quality. Secondly, when encountering a foundation pit with serious seepage, it is often difficult to meet the actual demand by relying on the drainage open ditch for drainage. Due to the large amount of seepage, the drainage capacity of the drainage open ditch may reach the limit, and even the water may overflow. In this case, not only the accumulated water in the foundation pit cannot be effectively removed, but also the safety of the soil structure around the foundation pit may be adversely affected. SUMMARY
[0004] In view of the problems existing in the prior art, the utility model provides a foundation pit dewatering anti-blocking device, which aims to solve the problem of water accumulation in the foundation pit caused by the easy blocking of the drainage open ditch and the water overflow phenomenon.
[0005] In order to solve the above technical problems, the utility model realizes the following technical scheme:
[0006] A foundation pit dewatering anti-blocking device, comprising a foundation pit body, a drainage open ditch is opened on one side of the bottom surface of the foundation pit body, a water collecting well is opened on one side of the bottom surface of the foundation pit body, the drainage open ditch and the water collecting well are communicated, a protective cover is installed in the top surface of the drainage open ditch, a groove is opened in the top surface of the protective cover, a plurality of water downcomers are opened in the bottom surface of the groove, and an intercepting net is fixedly installed in the groove.
[0007] A sealing cover is installed in the top surface of the water collecting well, a pump body is installed on the bottom surface of the foundation pit body, a water suction pipe is fixedly installed at the input end of the pump body, one end of the water suction pipe away from the pump body penetrates through the sealing cover and is inserted into the water collecting well, and a drainage pipeline is fixedly installed at the output end of the pump body.
[0008] Further, the bottom surface of the drainage ditch is provided with a flow guide slope from both ends to the position of the water collecting well, and both of the slopes are matched with the water collecting well.
[0009] Further, both sides of the top surface of the drainage ditch are provided with positioning grooves, and the protective cover is slidingly clamped in the positioning grooves.
[0010] Further, the top surface of the water collecting well is provided with a clamping groove, and the sealing cover is slidingly clamped in the clamping groove.
[0011] Further, one side of the top surface of the sealing cover is provided with a pipe hole, the water suction pipe is slidingly inserted in the pipe hole, a limiting sleeve is fixedly sleeved on the surface of the water suction pipe, and the limiting sleeve is limitingly matched with the pipe hole.
[0012] Further, a handle is fixedly installed at the middle of both sides of the top surface of the sealing cover.
[0013] Further, the water collecting well is arranged at the middle position of one side of the drainage ditch.
[0014] Further, a plurality of the water sinks are uniformly distributed on the bottom surface of the groove body.
[0015] Further, the pump body is located at one side of the sealing cover.
[0016] Further, the mesh size of the intercepting net is 5mmx5mm.
[0017] Compared with the prior art, the utility model has at least the following beneficial effects:
[0018] The protective cover is installed in the top surface of the drainage ditch to cooperate with the drainage ditch to collect water, the intercepting net installed in the groove body intercepts the construction waste, prevents the construction waste from entering the drainage ditch and causing the drainage ditch to be blocked, and the sealing cover is installed in the top surface of the water collecting well to protect the water collecting well, prevents the construction waste from entering the water collecting well and affects the drainage work of the foundation pit body. The drainage ditch and the water collecting well collect the seepage water in the foundation pit body, the seepage water in the foundation pit flows into the drainage ditch through the groove body and the water sink, flows to the water collecting well through the drainage ditch, and is discharged from the foundation pit body through the water suction pipe and the drainage pipeline under the cooperation of the pump body. The water collecting well cooperates with the drainage ditch to collect the seepage water, and prevents the drainage ditch from being flooded when the seepage of the foundation pit is serious.
[0019] In order to make the above-mentioned purposes, characteristics and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the specific embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the description of the specific embodiments, obviously, the drawings described in the following are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0021] Figure 1 It is the overall structure schematic diagram of the utility model a foundation pit dewatering anti-blocking device;
[0022] Figure 2 It is the utility model foundation pit body bottom surface structure schematic diagram;
[0023] Figure 3 It is the utility model Figure 2 It is the structure enlarged view of A in the utility model;
[0024] Figure 4 It is the utility model protective cover structure section view;
[0025] Figure 5 It is the utility model sealing cover cooperation pump body structure schematic diagram.
[0026] In the drawing: 1, foundation pit body;11, drainage open ditch;111, positioning groove;12, water collecting well;121, clamping groove;13, diversion slope;2, protective cover;21, groove body;22, sink;23, intercepting net;3, sealing cover;31, pipe hole;32, handle;4, pump body;41, water pumping pipe;411, limiting sleeve;42, drainage pipeline. Specific embodiments
[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model more clear, the technical scheme of the utility model will be clearly and completely described below in conjunction with the drawings, obviously, the described embodiments are some embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the utility model.
[0028] In conjunction with Figure 1 , Figure 2 , Figure 3 , Figure 4 And Figure 5The utility model discloses provide a kind of foundation pit dewatering anti-blocking device, mainly to solve the problem of the easy blockage of open drain in the existing foundation pit drainage system and prevent the phenomenon of waterlogging in the foundation pit to cause water accumulation. Foundation pit dewatering anti-blocking device includes foundation pit body 1, the bottom surface side of foundation pit body 1 is provided with open drain 11, the bottom surface of foundation pit body 1 is provided with water-collecting well 12 on one side of open drain 11, open drain 11 is communicated with water-collecting well 12, the top surface of open drain 11 is installed with protective cover 2, the top surface of protective cover 2 is provided with groove 21, the bottom surface of groove 21 is provided with several downspout 22, and intercepting net 23 is fixedly installed in groove 21. The top surface of water-collecting well 12 is installed with sealing cover 3, the bottom surface of foundation pit body 1 is installed with pump body 4, the input end of pump body 4 is fixedly installed with water suction pipe 41, one end of water suction pipe 41 away from pump body 4 penetrates sealing cover 3 and is inserted in water-collecting well 12, and the output end of pump body 4 is fixedly installed with drain pipe 42.
[0029] Specifically, foundation pit body 1 is the foundation pit excavated in building construction, open drain 11 is provided on the bottom surface of foundation pit body 1, and is used for collecting seepage water in the foundation pit. Water-collecting well 12 is located on one side of open drain 11 and is communicated with open drain 11. It should be noted that the capacity of water-collecting well 12 should meet the storage of water flowing from open drain 11, so as to facilitate the pumping of pump body 4. Protective cover 2 is installed in the top surface of open drain 11, and is used for covering and protecting open drain 11, to prevent external sundries from directly entering. Groove 21 is provided on the top surface of protective cover 2, and is used for guiding water flow to enter open drain 11. A plurality of downspout 22 are provided on the bottom surface of groove 21 to provide a passage for water flow to enter open drain 11. Interception net 23 is fixedly installed in groove 21, and is used for intercepting construction waste and the like, to prevent the construction waste and the like from entering open drain 11 and causing blockage. It should be understood that the mesh size of interception net 23 is selected according to actual needs, to ensure that the construction waste and the like generated during on-site construction can be effectively intercepted, and the water flow can not be affected.
[0030] Sealing cover 3 is installed in the top surface of water-collecting well 12, and is used for covering and protecting water-collecting well 12, to prevent construction waste and the like from entering. Pump body 4 is installed on the bottom surface of foundation pit body 1, and is used for pumping water in water-collecting well 12. One end of water suction pipe 41 is fixedly installed on the input end of pump body 4, and the other end penetrates sealing cover 3 and is inserted in water-collecting well 12. Drain pipe 42 is fixedly installed on the output end of pump body 4, and is used for discharging pumped water out of foundation pit body 1. It should be understood that the direction and length of drain pipe 42 should be determined according to the actual drainage needs of on-site construction.
[0031] In implementation, the drainage ditch 11 and the collecting well 12 are excavated at the bottom of the foundation pit body 1 and are ensured to be communicated. Then, the protective cover 2 is installed on the top of the drainage ditch 11, and the sealing cover 3 is installed on the top of the collecting well 12. Then, the pump body 4 is installed at the bottom of the foundation pit body 1, and the water suction pipe 41 and the drainage pipe 42 are connected. During the construction of the foundation pit, the seepage water in the foundation pit flows into the drainage ditch 11 through the groove 21 and the downspout 22, and then enters the collecting well 12. When the water level in the collecting well 12 reaches a certain height, the switch of the pump body 4 is turned on, and the pump body 4 starts to work to discharge the water in the collecting well 12 out of the foundation pit body 1 through the water suction pipe 41 and the drainage pipe 42.
[0032] For example, the length of the drainage ditch 11 is 80% of the length of the side of the foundation pit, the width is 600 mm, and the depth is 400 mm. The cylindrical collecting well 12 is excavated at the bottom of the foundation pit body 1 adjacent to the drainage ditch 11, the well depth is 1.5 m, the diameter is 800 mm, and the two are communicated through a flow guide pipe with a diameter of 200 mm. The protective cover 2 is formed by stamping a galvanized steel plate with a thickness of 5 mm. The bottom of the foundation pit body 1 is fixedly installed with a submersible pump body 4 with a power of 7.5 kW through bolts, the input end of which is connected with a Φ80 mm water suction pipe 41, the bottom end of which extends to 200 mm above the bottom of the collecting well 12, and the output end of which is connected with a Φ100 mm drainage pipe 42, and the outer wall of the pipe is wrapped with a impermeable geomembrane.
[0033] In an implementation, in order to further optimize the water flow guide between the drainage ditch 11 and the collecting well 12 and improve the drainage efficiency, the bottom of the drainage ditch 11 is provided with a flow guide slope 13 from both ends to the position of the collecting well 12, so that the bottom of the drainage ditch 11 is not horizontal, but forms two slopes 13 inclined to the collecting well 12.
[0034] In other words, the flow guide slope 13 is gradually inclined to the position of the collecting well 12 from both ends of the drainage ditch 11. The two slopes 13 are matched with the collecting well 12 to form an effective water flow channel to ensure that the water flow can smoothly flow to the collecting well 12. When the seepage water in the foundation pit flows into the drainage ditch 11 through the groove 21 and the downspout 22 on the protective cover 2, the water flow will be naturally guided to the collecting well 12 due to the flow guide slope 13 on the bottom. By providing the flow guide slope 13, the drainage efficiency of the drainage ditch 11 is effectively improved, the residence time of the water flow in the drainage ditch 11 is reduced, the water flow flows more smoothly into the collecting well 12, and the possibility of water flow accumulation and blockage in the drainage ditch 11 is avoided.
[0035] In an implementation, to ensure that the protective cover 2 can be accurately installed on the top surface of the drainage gutter 11, positioning grooves 111 are formed on both sides of the top surface of the drainage gutter 11. The protective cover 2 is then slidably clamped in the positioning grooves 111, achieving installation and positioning of the protective cover 2 on the top surface of the drainage gutter 11.
[0036] Specifically, the positioning grooves 111 are formed on both sides of the top surface of the drainage gutter 11, and the shape and size thereof are adapted to the edges of the protective cover 2. The edges of the protective cover 2 are designed with protrusions or buckle structures matching the positioning grooves 111. During installation, the edges of the protective cover 2 are simply aligned with the positioning grooves 111, and then slid to be clamped in the grooves, completing the installation. By installing and positioning the protective cover 2 through the positioning grooves 111, it is ensured that the protective cover 2 can be accurately covered on the top surface of the drainage gutter 11 without shifting or shaking.
[0037] In an implementation, a clamping groove 121 is formed on the top surface of the water collecting well 12, and the sealing cover 3 is slidably clamped in the clamping groove 121.
[0038] Specifically, the clamping groove 121 is formed on the edge of the top surface of the water collecting well 12, and the shape and size thereof are adapted to the edges of the sealing cover 3. The edges of the sealing cover 3 are designed with protrusions or buckle structures matching the clamping groove 121, so that the sealing cover 3 can be fitted in the clamping groove 121. During installation, the edges of the sealing cover 3 are simply aligned with the clamping groove 121, and then slid to be clamped in the groove, completing the installation. By installing and positioning the sealing cover 3 through the clamping groove 121, it is ensured that the sealing cover 3 can be accurately covered on the top surface of the water collecting well 12 without shifting or shaking. At the same time, the sealing cover 3 is easy to disassemble and replace, facilitating the maintenance and cleaning work of the water collecting well 12.
[0039] In an implementation, to achieve installation of the water pumping pipe 41 in the water collecting well 12, a pipe hole 31 is formed on one side of the top surface of the sealing cover 3. The water pumping pipe 41 is slidably inserted into the pipe hole 31, completing the installation of the water pumping pipe 41 in the water collecting well 12. At the same time, to assist the installation of the water pumping pipe 41 and ensure its stability, a limiting sleeve 411 is fixedly sleeved on the surface of the water pumping pipe 41, and the limiting sleeve 411 forms a limiting fit with the pipe hole 31.
[0040] In an implementation, to facilitate the disassembly and assembly of the sealing cover 3 on the water collecting well 12, a handle 32 is fixedly installed on the middle of each side of the top surface of the sealing cover 3. The handle 32 provides a gripping point, and the handle 32 is fixedly installed on the middle of each side of the top surface of the sealing cover 3, ensuring that the operator can maintain balance when lifting or lowering the sealing cover 3. For example, the number of handles 32 is two.
[0041] In an implementation, the water collecting well 12 is arranged at the middle position of one side of the open drain 11. Specifically, the water collecting well 12 is arranged at one side of the open drain 11 and at the middle position, so that the water flowing from both ends of the open drain 11 can be collected in the water collecting well 12 relatively uniformly, avoiding the situation that the water flow is deflected or accumulated at one end, and meanwhile, the water drainage efficiency is improved.
[0042] In an implementation, the plurality of water troughs 22 are uniformly distributed on the bottom surface of the trough body 21. The uniformly distributed water troughs 22 can ensure that the water flow is uniformly distributed on the bottom surface of the trough body 21, improve the water drainage efficiency, reduce the possibility of accumulation of sundries on the bottom surface of the trough body 21, and better reduce the risk of blockage.
[0043] In an implementation, the pump body 4 is arranged at one side of the sealing cover 3. Arranging the pump body 4 at one side of the sealing cover 3 facilitates the connection of the water suction pipe and the pump body 4, reduces the length of the pipeline, and reduces the risk of leakage.
[0044] In an embodiment, the intercepting net 23 is made of stainless steel and has a mesh size of 5mm*5mm.
[0045] Working principle: The water seepage in the foundation pit body 1 is collected through the open drain 11 and the water collecting well 12. The protective cover 2 is installed on the top surface of the open drain 11 to cooperate with the open drain 11 to collect the water seepage. The construction waste is intercepted by the intercepting net 23 installed in the trough body 21, so as to prevent the construction waste from entering the open drain 11 and causing the blockage of the open drain 11 and affecting the water drainage of the foundation pit body 1. Similarly, the sealing cover 3 is installed on the top surface of the water collecting well 12 to protect the water collecting well 12, so as to prevent the construction waste from entering the water collecting well 12 and affecting the water drainage of the foundation pit body 1. The water seepage in the foundation pit flows into the open drain 11 through the trough body 21 and the water trough 22. The water in the open drain 11 flows into the water collecting well 12. The switch of the pump body 4 is opened. Under the cooperation of the pump body 4, the water in the water collecting well 12 is discharged out of the foundation pit body 1 through the water suction pipe 41 and the water drainage pipeline 42.
[0046] In the description of the present application, it should be understood that the terms "upper", "lower", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0047] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an indicated number of the technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0048] In the present application, unless otherwise specifically defined and limited, the terms "connected", "connected" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0049] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0050] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.
[0051] Finally, it should be noted that the above-described embodiments are merely specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, but not to limit the same, and the protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to some of the technical features within the technical range disclosed by the present application; and these modifications, changes or replacements do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A foundation pit dewatering anti-blocking device, comprising a foundation pit body (1), characterized in that, The bottom side of the foundation pit body (1) is provided with a drainage open channel (11), the bottom side of the foundation pit body (1) is provided with a water collecting well (12) on one side of the drainage open channel (11), the drainage open channel (11) is communicated with the water collecting well (12), the top surface of the drainage open channel (11) is provided with a protective cover (2), the top surface of the protective cover (2) is provided with a groove (21), the bottom surface of the groove (21) is provided with a plurality of downcomers (22), and the groove (21) is fixedly provided with an intercepting net (23). The top surface of the water collecting well (12) is provided with a sealing cover (3), the bottom surface of the foundation pit body (1) is provided with a pump body (4), the input end of the pump body (4) is fixedly provided with a water pumping pipe (41), one end of the water pumping pipe (41) away from the pump body (4) penetrates through the sealing cover (3) and is inserted into the water collecting well (12), and the output end of the pump body (4) is fixedly provided with a drainage pipeline (42).
2. The anti-blocking device for foundation pit dewatering according to claim 1, characterized in that, The bottom surface of the drainage open channel (11) is provided with a flow guide slope (13) from both ends to the position of the water collecting well (12), and the two slopes (13) are matched with the water collecting well (12).
3. The anti-blocking device for foundation pit dewatering according to claim 1, characterized in that, The top surface of the drainage open channel (11) is provided with a positioning groove (111) on both sides, and the protective cover (2) is slidably clamped in the positioning groove (111).
4. The anti-blocking device for foundation pit dewatering according to claim 1, characterized in that, The top surface of the water collecting well (12) is provided with a clamping groove (121), and the sealing cover (3) is slidably clamped in the clamping groove (121).
5. The anti-blocking device for foundation pit dewatering according to claim 1, characterized in that, The top surface of the sealing cover (3) is provided with a pipe hole (31) on one side, the water pumping pipe (41) is slidably inserted into the pipe hole (31), and the surface of the water pumping pipe (41) is fixedly provided with a limiting sleeve (411) which is limitedly matched with the pipe hole (31).
6. The anti-blocking device for foundation pit dewatering according to claim 1, characterized in that, The top surface of the sealing cover (3) is provided with a handle (32) fixedly installed on both sides.
7. The anti-blocking device for dewatering foundation pit according to claim 1, characterized in that, The water collecting well (12) is provided at the middle position of one side of the drainage open channel (11).
8. The anti-blocking device for dewatering foundation pit according to claim 1, characterized in that, A plurality of downcomers (22) are evenly distributed on the bottom surface of the groove (21).
9. The anti-blocking device for dewatering of a foundation pit according to claim 1, characterized in that, The pump body (4) is located on one side of the sealing cover (3).
10. The anti-blocking device for dewatering of a foundation pit according to claim 1, characterized in that, The mesh size of the intercepting net (23) is 5mmx5mm.