Foundation pit drainage structure

Abstract

The utility model provides a foundation pit drainage structure, which belongs to the technical field of foundation pit drainage, aims to solve the problems that cleaning needs to be carried out firstly and the operation is complicated when a drainage well is backfilled in the prior art, and comprises a foundation pit main body, the drainage well, a drainage cover plate, a drainage connecting piece, a drainage pump, a drainage filtering piece, a filtering protection mechanism and a drainage protection mechanism, the drainage well is formed in the bottom face of the inner side of the foundation pit body. The drainage cover plate is lapped above the drainage well; a thread structure is arranged at the upper end of the drainage connecting piece, and the drainage connecting piece is fixedly connected to the upper end of the drainage cover plate; the drainage pump is fixedly connected to the upper portion of the foundation pit body, and a water inlet pipe of the drainage pump is in threaded connection with the drainage connecting piece. The drainage filtering piece is arranged below the drainage cover plate; the filtering protection mechanism is arranged below the drainage cover plate; the drainage protection mechanism is arranged at the lower end of the inner side of the drainage cover plate, and sundries are prevented from falling into the drainage well during foundation pit construction.

Description

Technical Field

[0001] The utility model belongs to the technical field of foundation pit drainage, and more specifically, relates to a foundation pit drainage structure. Background Art

[0002] When excavating a foundation pit, in order to prevent groundwater, rainwater, etc. from remaining in the foundation pit, it is generally necessary to excavate a drainage well in the foundation pit to collect water, and then use a water pump to discharge the accumulated water in the drainage well, so as to achieve drainage of the foundation pit, ensure the stability of the foundation pit, and avoid collapse of the foundation pit.

[0003] The existing application number is: CN202111282618.8. This application discloses a construction foundation pit drainage structure, which relates to the technical field of foundation pit drainage and improves the problem of how rainwater can be directly pumped away on rainy days. It includes a drainage ditch and a water collection well connected to the drainage ditch. The water collection well is equipped with a water collection box with an upward opening. A pumping box with an upward opening is installed in the middle of the water collection box. A filter is installed between the water collection box and the pumping box. The suction pipe of the pumping pump is vertically extended into the pumping box; the foundation pit is equipped with a water collection pipe, which is connected to a water supply pipe. One end of the water supply pipe is connected to the pumping box. The water collection pipe located in the drainage ditch is provided with a water inlet hole. The water collection pipe is equipped with an adjusting member. The adjusting member includes a first connecting state that connects the drainage ditch with the water collection well, and a second connecting state that connects the drainage ditch with the water collection pipe. This application can enable relatively clear rainwater to directly enter the pumping box and be pumped away by the pump, thereby further reducing the situation where the pumping pump pumps mud and sand.

[0004] Based on the above, when drainage wells are used to drain foundation pits, a protective net is generally set up at the top of the drainage well to prevent people from falling. However, when workers are working in the foundation pit, debris in the foundation pit can easily fall into the drainage well, resulting in the need to clean the drainage well before backfilling it. The operation is relatively cumbersome, which affects the backfill efficiency of the foundation pit. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a foundation pit drainage structure to solve the problem that when the drainage well is used to drain the foundation pit, a protective net is generally set at the upper end of the drainage well to prevent people from falling. However, when workers are constructing in the foundation pit, debris in the foundation pit is easy to fall into the inside of the drainage well, resulting in the need to clean the drainage well before backfilling it later. The operation is cumbersome and affects the backfill efficiency of the foundation pit.

[0006] The purpose and effect of the foundation pit drainage structure of the utility model are achieved by the following specific technical means:

[0007] A foundation pit drainage structure, comprising a foundation pit body, a drainage well, a drainage cover plate, a drainage connector, a drainage pump, a drainage filter, a filter protection mechanism and a drainage protection mechanism;

[0008] The drainage well is opened on the inner bottom surface of the foundation pit body;

[0009] The drainage cover plate is overlapped above the drainage well;

[0010] The drainage connector is a cylindrical structure, the upper end of which is provided with a threaded structure, and the drainage connector is fixedly connected to the upper end of the drainage cover plate;

[0011] The drainage pump is fixedly connected to the top of the foundation pit body, and the water inlet pipe of the drainage pump is threadedly connected to the drainage connector;

[0012] The drainage filter is arranged below the drainage cover plate;

[0013] The filtering and protecting mechanism is arranged below the drainage cover plate;

[0014] The drainage protection mechanism is arranged at the inner lower end of the drainage cover plate.

[0015] Furthermore, the filtering protection mechanism includes: a drainage protection baffle;

[0016] The drainage protection baffle is a conical cylindrical structure, the drainage protection baffle is fixedly connected to the bottom of the drainage cover plate, and the drainage filter is fixedly connected to the bottom of the drainage protection baffle.

[0017] Furthermore, the drainage protection mechanism includes: a water-permeable hole and a protective shielding plate;

[0018] The water-permeable holes are provided in multiple groups, and the multiple groups of water-permeable holes are respectively opened on the upper inner side of the drainage cover plate;

[0019] The protective shielding plate is rotatably connected to the inner lower end of the drainage cover plate. The inner side of the protective shielding plate is provided with multiple groups of rectangular groove structures, and the multiple groups of rectangular grooves of the protective shielding plate are staggered with the water-permeable holes.

[0020] Furthermore, the drainage protection mechanism further comprises: a protection connecting pipe;

[0021] The protective connecting pipe is fixedly connected above the drainage filter element, the upper end of the protective connecting pipe is connected to the interior of the drainage connector, and the inner diameter of the inner lower end of the protective connecting pipe is smaller than the inner diameter of the inner upper end of the protective connecting pipe.

[0022] Furthermore, the drainage protection mechanism further comprises: a protection fixing member, a protection driving piston, a protection connecting rod and a protection reset spring;

[0023] The protection fixing piece is fixedly connected to the middle position inside the protection connecting pipe;

[0024] The protection drive piston is slidably connected to the inner lower end of the protection connecting pipe;

[0025] The protection connecting rod is fixedly connected to the upper end of the protection driving piston, and the protection connecting rod is slidably connected to the protection fixing member;

[0026] The protection reset spring is fixedly connected above the protection drive piston, and the upper end of the protection reset spring is fixedly connected to the protection fixing piece.

[0027] Furthermore, the drainage protection mechanism further comprises: a protection trigger groove and a protection trigger member;

[0028] The protective triggering groove is an oblique groove structure, and the protective triggering groove is opened on the inner side of the protective shielding plate;

[0029] The protection triggering member is fixedly connected to the upper rear side of the protection connecting rod, and the rear end of the protection triggering member is arranged inside the protection triggering groove.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The utility model provides a filtering and protective mechanism. When the foundation pit needs to be drained, the water in the foundation pit flows to the drainage well. The drainage cover plate realizes preliminary filtration of the water flow. At the same time, the drainage protection baffle realizes the guidance of the water flow, thereby preventing the water flow from flowing downward along the inner wall of the drainage well and preventing the water flow from eroding the inner wall of the drainage well.

[0032] When the water in the drain well is drained out through the protective reset spring, the protective shielding plate is reversed to block the water permeable hole, thereby preventing debris from falling into the drain well during the construction of the drain well, thereby protecting the drain well and facilitating the subsequent backfilling of the drain well. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0034] Figure 2 It is a structural schematic diagram of a drainage well of the present utility model.

[0035] Figure 3 It is a structural schematic diagram of the drainage protection baffle of the present utility model.

[0036] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0037] Figure 5 It is a structural diagram of the drainage protection mechanism of the present utility model.

[0038] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0039] 1. Foundation pit body; 101. Drainage protection baffle; 2. Drainage well; 3. Drainage cover; 4. Drainage connector; 401. Water-permeable hole; 402. Protection baffle; 403. Protection connecting pipe; 404. Protection fixing piece; 405. Protection drive piston; 406. Protection connecting rod; 407. Protection reset spring; 408. Protection trigger groove; 409. Protection trigger; 5. Drainage pump; 6. Drainage filter. DETAILED DESCRIPTION

[0040] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0041] Example 1:

[0042] As attached Figure 1 To the attached Figure 4 As shown:

[0043] The utility model provides a foundation pit drainage structure, comprising a foundation pit body 1, a drainage well 2, a drainage cover plate 3, a drainage connector 4, a drainage pump 5, a drainage filter 6 and a filter protection mechanism;

[0044] The drainage well 2 is opened on the inner bottom surface of the foundation pit body 1;

[0045] The drainage cover plate 3 is overlapped on the top of the drainage well 2;

[0046] The drainage connector 4 is a cylindrical structure, and a threaded structure is provided on the upper end of the drainage connector 4. The drainage connector 4 is fixedly connected to the upper end of the drainage cover plate 3;

[0047] The drainage pump 5 is fixedly connected to the top of the foundation pit body 1, and the water inlet pipe of the drainage pump 5 is threadedly connected to the drainage connector 4;

[0048] The drainage filter 6 is arranged below the drainage cover plate 3;

[0049] The filter protection mechanism is arranged below the drainage cover plate 3 .

[0050] The filtering protection mechanism includes: a drainage protection baffle 101;

[0051] The drainage protection baffle 101 is a conical cylindrical structure. The drainage protection baffle 101 is fixedly connected to the bottom of the drainage cover plate 3 , and the drainage filter element 6 is fixedly connected to the bottom of the drainage protection baffle 101 .

[0052] During use, when the foundation pit needs to be drained, the water in the foundation pit flows to the drainage well 2, and the drainage cover 3 realizes the preliminary filtration of the water flow. At the same time, the drainage protection baffle 101 realizes the guidance of the water flow, preventing the water flow from flowing downward along the inner wall of the drainage well 2, and preventing the water flow from eroding the inner wall of the drainage well 2.

[0053] Example 2:

[0054] The utility model provides a foundation pit drainage structure, based on the first embodiment, as Figures 1 to 5 As shown, it also includes a drainage protection mechanism, which is arranged at the inner lower end of the drainage cover plate 3.

[0055] The drainage protection mechanism includes: a water permeable hole 401, a protection shielding plate 402, a protection connecting pipe 403, a protection fixing member 404, a protection driving piston 405, a protection connecting rod 406, a protection return spring 407, a protection trigger groove 408 and a protection trigger member 409;

[0056] There are multiple groups of water holes 401, and each of the multiple groups of water holes 401 is opened on the upper inner side of the drainage cover plate 3;

[0057] The protective shielding plate 402 is rotatably connected to the inner lower end of the drainage cover plate 3. The inner side of the protective shielding plate 402 is provided with multiple sets of rectangular groove structures. The multiple sets of rectangular grooves of the protective shielding plate 402 are staggered with the water-permeable holes 401.

[0058] The protective connecting pipe 403 is fixedly connected to the top of the drainage filter 6. The upper end of the protective connecting pipe 403 is connected to the interior of the drainage connector 4. The inner diameter of the inner lower end of the protective connecting pipe 403 is smaller than the inner diameter of the inner upper end of the protective connecting pipe 403.

[0059] The protection fixing member 404 is fixedly connected to the middle position inside the protection connecting pipe 403;

[0060] The protection driving piston 405 is slidably connected to the inner lower end of the protection connecting pipe 403;

[0061] The protection connecting rod 406 is fixedly connected to the upper end of the protection driving piston 405, and the protection connecting rod 406 is slidably connected to the protection fixing member 404;

[0062] The protection return spring 407 is fixedly connected to the top of the protection drive piston 405, and the upper end of the protection return spring 407 is fixedly connected to the protection fixing member 404;

[0063] The protection triggering groove 408 is an oblique groove structure, and the protection triggering groove 408 is opened on the inner side of the protection shielding plate 402;

[0064] The protection trigger member 409 is fixedly connected to the upper rear side of the protection connecting rod 406 , and the rear end of the protection trigger member 409 is arranged inside the protection trigger groove 408 .

[0065] During use, when draining, the drain pump 5 is turned on, and the drain pump 5 draws water through the water inlet pipe. At this time, the protection driving piston 405 is attracted by the suction force of the drain pump 5 and moves upward. When the protection driving piston 405 moves upward to the upper end of the protection connecting pipe 403, the water inside the drainage well 2 is discharged through the protection connecting pipe 403. The protection driving piston 405 moves upward, driving the protection connecting rod 406 to move upward. The protection connecting rod 406 moves upward, driving the protection trigger 409 to move upward, and the protection trigger 409 moves upward. Under the action of the protective trigger groove 408, the protective shielding plate 402 is driven to rotate. When the protective shielding plate 402 rotates, the rectangular groove of the protective shielding plate 402 is aligned with the water permeable hole 401. At this time, the water in the foundation pit enters the interior of the drainage well 2, realizing the drainage of the foundation pit. When the drainage is completed, under the action of the protective reset spring 407, the protective shielding plate 402 reverses to realize the shielding of the water permeable hole 401, thereby preventing debris from falling into the interior of the drainage well 2 during the construction of the foundation pit, thereby realizing the protection of the drainage well 2.

[0066] In this article, there are several points to note:

[0067] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0068] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0069] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A foundation pit drainage structure, comprising a foundation pit body (1), a drainage well (2), a drainage cover plate (3), a drainage connector (4), a protective shielding plate (402), a protective fixing member (404), a protective connecting rod (406), a protective return spring (407), a protective trigger groove (408), a protective trigger member (409), a drainage pump (5), a drainage filter (6), a filter protection mechanism, and a drainage protection mechanism; characterized in that: The drainage well (2) is provided on the inner bottom surface of the foundation pit body (1); the drainage cover plate (3) is overlapped above the drainage well (2); the drainage connector (4) is a cylindrical structure, the upper end of the drainage connector (4) is provided with a threaded structure, and the drainage connector (4) is fixedly connected to the upper end of the drainage cover plate (3); the drainage pump (5) is fixedly connected to the upper end of the foundation pit body (1), and the water inlet pipe of the drainage pump (5) is threadedly connected to the drainage connector (4); the drainage filter (6) is provided below the drainage cover plate (3); the filtering protection mechanism is provided below the drainage cover plate (3); the drainage protection mechanism is provided at the inner lower end of the drainage cover plate (3); the protection shielding plate (402) is rotatably connected to the inner lower end of the drainage cover plate (3) to prevent the drainage filter from leaking. A plurality of rectangular groove structures are provided on the inner side of the protective shielding plate (402); the protective fixing member (404) is fixedly connected to the inner middle position of the protective connecting pipe (403); the protective connecting rod (406) is fixedly connected to the upper end of the protective driving piston (405), and the protective connecting rod (406) is slidably connected to the protective fixing member (404); the upper end of the protective return spring (407) is fixedly connected to the protective fixing member (404); the protective triggering groove (408) is an oblique groove structure, and the protective triggering groove (408) is opened on the inner side of the protective shielding plate (402); the protective triggering member (409) is fixedly connected to the upper rear side of the protective connecting rod (406), and the rear end of the protective triggering member (409) is arranged inside the protective triggering groove (408).

2. A foundation pit drainage structure according to claim 1, characterized in that: The filtering protection mechanism comprises: a drainage protection baffle (101); the drainage protection baffle (101) is a conical cylindrical structure, the drainage protection baffle (101) is fixedly connected below the drainage cover plate (3), and the drainage filter element (6) is fixedly connected below the drainage protection baffle (101).

3. The foundation pit drainage structure according to claim 1, characterized in that: The drainage protection mechanism comprises: water-permeable holes (401); the water-permeable holes (401) are provided in multiple groups, and the multiple groups of water-permeable holes (401) are respectively opened on the upper inner side of the drainage cover plate (3); the multiple groups of rectangular grooves of the protection shielding plate (402) are staggered with the water-permeable holes (401).

4. A foundation pit drainage structure according to claim 3, characterized in that: The drainage protection mechanism further comprises: a protection connecting pipe (403); the protection connecting pipe (403) is fixedly connected above the drainage filter element (6); the upper end of the protection connecting pipe (403) is communicated with the interior of the drainage connector (4); and the inner diameter of the inner lower end of the protection connecting pipe (403) is smaller than the inner diameter of the inner upper end of the protection connecting pipe (403).

5. A foundation pit drainage structure according to claim 4, characterized in that: The drainage protection mechanism further comprises: a protection driving piston (405); the protection driving piston (405) is slidably connected to the inner lower end of the protection connecting pipe (403); and a protection return spring (407) is fixedly connected above the protection driving piston (405).

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