Inverted filter structure of underground engineering pressure-limiting anti-floating pressure-limiting well
By using a combination of circular pipes, fixing mechanisms, and partition components in underground engineering, the problem of poor sand filtration effect of the reverse filter layer was solved, achieving effective sand filtration and structural stability, and improving the groundwater filtration effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-10
AI Technical Summary
Existing filter layers are ineffective at filtering sand in underground engineering projects, are difficult to fill, and lead to the loss of sand particles.
The system employs a combination structure of round tubes, fixing mechanisms, and separating components, including a first filter plate, a threaded rod, a second filter plate, a third filter plate, a limiting component, and a separating component. Through the design of layers of filter plates and separating components, effective filtration and filling of sand and soil are achieved.
It improves the filtration effect of groundwater, prevents the loss of fine sand, and enhances the stability and filtration effect of the structure.
Smart Images
Figure CN224100219U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to underground engineering technical field especially relates to a reverse filter layer structure of underground engineering pressure limiting anti floating pressure limiting well. BACKGROUND
[0002] In underground engineering, groundwater buoyancy is a problem that cannot be ignored. When the groundwater level rises, the groundwater buoyancy will exert a huge pressure on the underground engineering structure, leading to structural deformation, cracking and even floating. During the drainage and pressure reduction process, the water well will discharge a lot of sand when discharging groundwater, which may cause the loss of sand particles.
[0003] The existing reverse filter layer has poor filtering effect on sand and is not easy to fill. UTILITY MODEL CONTENT
[0004] The utility model discloses a reverse filter layer structure of underground engineering pressure limiting anti floating pressure limiting well, which solves the problem of poor filtering effect of the existing reverse filter layer on sand and difficulty in filling.
[0005] To achieve the above-mentioned purpose, the utility model provides a reverse filter layer structure of underground engineering pressure limiting anti floating pressure limiting well, which comprises a circular pipe and a fixing mechanism. The fixing mechanism comprises a first filter plate, two threaded rods, a second filter plate, a third filter plate, four first nuts and two limiting assemblies. The first filter plate is fixedly connected with the circular pipe and located below the circular pipe. The inner side of the circular pipe is provided with two grooves. The two threaded rods are fixedly connected with the circular pipe and located inside the corresponding grooves. The second filter plate is arranged inside the circular pipe. The third filter plate covers the surfaces of the two threaded rods and is located above the circular pipe. The four first nuts are respectively threadedly connected with the corresponding threaded rods and arranged above the second filter plate and the third filter plate. The two limiting assemblies are respectively arranged on one side of the second filter plate and the third filter plate.
[0006] The fixing mechanism further comprises two side plates. One end of each side plate is fixedly connected with the second filter plate, and the other end of each side plate is sleeved on the surface of the corresponding threaded rod.
[0007] Each limiting assembly comprises a screw rod, a second nut, a limiting shell and a limiting sheet. The screw rod is arranged inside the circular pipe. The limiting shell is sleeved on the surface of the screw rod. The limiting sheet is slidably connected with the screw rod and located inside the limiting shell. The second nut is threadedly connected with the screw rod and located on one side of the limiting shell.
[0008] The reverse filter layer structure of the underground engineering pressure-limiting anti-floating pressure-limiting well further comprises a separation assembly, and the second filter plate separates the circular tube into a first cavity and a cavity, and the separation assembly is arranged inside the cavity.
[0009] The separation assembly comprises a limiting ring and a fourth filter plate, the limiting ring is fixedly connected with the circular tube and located above the first filter plate, and the fourth filter plate is slidably connected with the circular tube and located above the limiting ring, and the fourth filter plate separates the cavity into a second cavity and a third cavity.
[0010] The reverse filter layer structure of the underground engineering pressure-limiting anti-floating pressure-limiting well comprises a circular tube, a first filter plate, a second filter plate, a third filter plate, four first nuts, two limiting assemblies and two threaded rods. BRIEF DESCRIPTION OF DRAWINGS
[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description.
[0012] Figure 1 It is a structural schematic view of the reverse filter layer structure of the underground engineering pressure-limiting anti-floating pressure-limiting well.
[0013] Figure 2 It is a side view of the reverse filter layer structure of the underground engineering pressure-limiting anti-floating pressure-limiting well.
[0014] Figure 3 It is an A-A line sectional view of the reverse filter layer structure of the underground engineering pressure-limiting anti-floating pressure-limiting well. Figure 2
[0015] Figure 4 This is the utility model Figure 3 A schematic diagram of the structure at point B.
[0016] 1-Round tube, 2-First filter plate, 3-Threaded rod, 4-Second filter plate, 5-Third filter plate, 6-First nut, 7-Side plate, 8-Screw, 9-Second nut, 10-Limiting shell, 11-Limiting piece, 12-Limiting ring, 13-Fourth filter plate, 14-Groove, 15-First cavity, 16-Second cavity, 17-Third cavity. Detailed Implementation
[0017] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0018] Please see Figures 1-4 ,in, Figure 1 This is a schematic diagram of the reverse filter layer structure of the pressure-limiting and anti-buoyancy pressure-limiting well in underground engineering according to this utility model. Figure 2 This is a side view of the filter layer structure of the pressure-limiting and anti-buoyancy pressure-limiting well in underground engineering according to this utility model. Figure 3 This is the utility model Figure 2 AA-line sectional view, Figure 4 This is the utility model Figure 3 A schematic diagram of the structure at point B.
[0019] This utility model provides a reverse filter layer structure for a pressure-limiting and anti-buoyancy pressure-limiting well in underground engineering, including a circular pipe 1, a fixing mechanism, and a partitioning assembly. The fixing mechanism includes a first filter plate 2, two threaded rods 3, a second filter plate 4, a third filter plate 5, four first nuts 6, two side plates 7, and two limiting assemblies. Each limiting assembly includes a screw 8, a second nut 9, a limiting shell 10, and a limiting plate 11. The partitioning assembly includes a limiting ring 12 and a fourth filter plate 13. The aforementioned solution solves the problems of poor filtration effect and difficulty in filling existing reverse filter layers for sand and soil.
[0020] For this specific embodiment, the first filter plate 2 is fixedly connected with the circular pipe 1 and located below the circular pipe 1, the circular pipe 1 is internally provided with two grooves 14, two threaded rods 3 are fixedly connected with the circular pipe 1 and located inside the corresponding grooves 14, the second filter plate 4 is arranged inside the circular pipe 1, the third filter plate 5 covers the surfaces of the two threaded rods 3 and is located above the circular pipe 1, four first nuts 6 are respectively threadedly connected with the corresponding threaded rods 3 and respectively arranged above the second filter plate 4 and the third filter plate 5, two limiting assemblies are respectively arranged on one side of the second filter plate 4 and the third filter plate 5, in use, the pebbles are put into the bottom of the circular pipe 1, the second filter plate 4 is put into the inside of the circular pipe 1 and fixed by the first nuts 6, the fine sand is arranged on the surface of the second filter plate 4 and enclosed by the third filter plate 5, the third filter plate 5 is fixed by the first nuts 6, and the circular pipe 1 is arranged in a water well, when the underground water overflows, the underground water is filtered through the first filter plate 2, the pebble layer, the second filter plate 4, the fine sand layer and the third filter plate 5.
[0021] Wherein, one end of the two side plates 7 is fixedly connected with the second filter plate 4, and the other end of the two side plates 7 is sleeved on the surface of the corresponding threaded rod 3, when the second filter plate 4 is installed, the second filter plate 4 is sleeved inside the threaded rod 3 through the side plates 7, which is simple to install and stable in structure.
[0022] Secondly, the screw rod 8 is arranged inside the circular pipe 1, the limiting shell 10 is sleeved on the surface of the screw rod 8, the limiting piece 11 is slidably connected with the screw rod 8 and located inside the limiting shell 10, and the second nut 9 is threadedly connected with the screw rod 8 and located on one side of the limiting shell 10, the limiting piece 11 is arranged on one side of the second filter plate 4 and the third filter plate 5, sleeved on the surface of the screw rod 8 and fixed by the second nut 9, and the fine sand is limited between the two limiting pieces 11, so that the fine sand is prevented from passing through the second filter plate 4 and the third filter plate 5 during filtration.
[0023] Secondly, the second filter plate 4 divides the circular pipe 1 into a first cavity 15 and a cavity, the separating assembly is arranged inside the cavity, and the separating assembly separates the pebbles, so that larger pebbles are used in the lower layer and smaller pebbles are used in the upper layer, thereby improving the filtering effect.
[0024] In addition, the limiting ring 12 is fixedly connected with the circular pipe 1 and located above the first filter plate 2, the fourth filter plate 13 is slidably connected with the circular pipe 1 and located above the limiting ring 12, the fourth filter plate 13 divides the cavity into a second cavity 16 and a third cavity 17, after adding larger stones into the third cavity 17, the fourth filter plate 13 is placed on the surface of the limiting ring 12, and fine stones are paved, so that the filtering effect is improved.
[0025] In use of the utility model, after adding larger stones into the third cavity 17, the fourth filter plate 13 is placed on the surface of the limiting ring 12, fine stones are paved, the second filter plate 4 is placed into the circular pipe 1 and is fixed through the first nut 6, fine sand is placed on the surface of the second filter plate 4, is closed through the third filter plate 5, the third filter plate 5 is fixed through the first nut 6, the circular pipe 1 is placed into the water well, when groundwater overflows, is filtered layer by layer, and the filtering effect is improved.
[0026] The above only discloses one or more preferred embodiments of the application, and cannot limit the scope of the application, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the application still belong to the scope of the application.
Claims
1. A filter structure of a pressure-limiting anti-floating pressure-limiting well of an underground engineering, comprising a circular pipe, characterized in that, It further comprises a fixing mechanism, the fixing mechanism comprises a first filter plate, two threaded rods, a second filter plate, a third filter plate, four first nuts and two limiting assemblies, the first filter plate is fixedly connected with the circular pipe and located below the circular pipe, the inner side of the circular pipe is provided with two grooves, the two threaded rods are fixedly connected with the circular pipe and located inside the corresponding grooves, the second filter plate is arranged inside the circular pipe, the third filter plate covers the surface of the two threaded rods and is located above the circular pipe, the four first nuts are respectively threadedly connected with the corresponding threaded rods and are respectively arranged above the second filter plate and the third filter plate, and the two limiting assemblies are respectively arranged on one side of the second filter plate and the third filter plate.
2. The filter structure of a pressure-limiting anti-floating pressure-limiting well of an underground engineering according to claim 1, characterized in that, The fixing mechanism further comprises two side plates, one end of the two side plates is fixedly connected with the second filter plate, and the other end of the two side plates is sleeved on the surface of the corresponding threaded rod.
3. The filter structure of a pressure-limiting anti-floating pressure-limiting well of an underground engineering according to claim 2, characterized in that, Each limiting assembly comprises a screw rod, a second nut, a limiting shell and a limiting sheet, the screw rod is arranged inside the circular pipe, the limiting shell is sleeved on the surface of the screw rod, the limiting sheet is slidably connected with the screw rod and located inside the limiting shell, and the second nut is threadedly connected with the screw rod and located on one side of the limiting shell.
4. The filter structure of a pressure-limiting anti-floating pressure-limiting well of an underground engineering according to claim 3, characterized in that, The filter structure of a pressure-limiting anti-floating pressure-limiting well of an underground engineering further comprises a separation assembly, the second filter plate separates the circular pipe into a first cavity and a cavity, and the separation assembly is arranged inside the cavity.
5. The filter structure of a pressure-limiting anti-floating pressure-limiting well of an underground engineering according to claim 4, characterized in that, The separation assembly comprises a limiting ring and a fourth filter plate, the limiting ring is fixedly connected with the circular pipe and located above the first filter plate, the fourth filter plate is slidably connected with the circular pipe and located above the limiting ring, and the fourth filter plate separates the cavity into a second cavity and a third cavity.