Filter material filling system of dewatering well
By designing a filter media filling system for dewatering wells and adopting a filler inclined plate and well cover structure, efficient mechanized filling of deep foundation pit dewatering wells has been achieved, solving the problems of low construction efficiency and high cost, and improving project quality and economic benefits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-03-31
AI Technical Summary
In existing technologies, the filter material filling method for deep foundation pit dewatering wells is time-consuming and labor-intensive, resulting in low construction efficiency, poor project quality, and high costs.
A dewatering well filter media filling system was designed, including a filter media bin, a dewatering well cover, a dewatering well pipe, a dewatering well protective support, and an anti-clogging pipe. The system utilizes inclined plates and a load-bearing support structure to achieve efficient filling of the filter media through mechanized operation, and the anti-clogging pipe and well cover design prevent clogging and ensure the stability of the well pipe position.
It improved construction efficiency, reduced construction period and labor costs, ensured project quality and economic benefits, and provided better water filtration.
Smart Images

Figure CN224063450U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of dewatering in the engineering construction industry, and specifically discloses a dewatering well filter media packing system. Background Technology
[0002] During the excavation of the foundation pit, in order to avoid quicksand and piping, prevent the collapse of the pit wall soil, and ensure construction safety and project quality, when the groundwater level is higher than the bottom of the foundation pit, it is necessary to dewater the foundation pit. The dewatering well is generally designed with a diameter of 600mm and a well pipe specification of 380×300. A rotary drilling rig is generally used to drill the hole, and a 20-loader is used to fill the filter material.
[0003] Currently, deep foundation pits are becoming increasingly common in the construction industry, and dewatering wells are getting deeper and deeper. The amount of filter material required for each well is also increasing. If conventional methods are used, one approach is manual filling, which is time-consuming and wastes both construction time and labor costs. Another approach is to use a 20-ton loader to directly dump the filter material at the wellhead. However, this can cause the dewatering pipe to shake, making it difficult to ensure that the dewatering well pipe is centered, which reduces the quality of the project and results in low construction efficiency. This requires multiple machines and increases the overall construction cost. Utility Model Content
[0004] This application provides a filter media packing system for dewatering wells, which improves upon the technical problems of low construction efficiency and engineering quality, and high construction cost of existing dewatering well packing methods.
[0005] This utility model provides a dewatering well filter media filling system, including a filter media bin, a dewatering well cover, a dewatering well pipe, a dewatering well protective support, and an anti-clogging pipe. The filter media bin is provided with filling holes and a filling inclined plate surrounding the filling holes. The diameter of the filling holes matches the diameter of the foundation pit dewatering well, and the height of the filling inclined plate gradually decreases from the edge to the filling holes. The dewatering well protective support includes an inner protective ring, an outer protective ring, and protective ring connecting ribs. The inner and outer protective rings are concentrically arranged and connected by multiple protective ring connecting ribs. The outer wall of the anti-clogging pipe is fixedly connected to the filling holes, and the inner wall of the anti-clogging pipe is fixedly connected to the outer protective ring. The bottom end of the anti-clogging pipe is inserted into the foundation pit dewatering well. The outer wall of the dewatering well pipe is fixedly connected to the inner protective ring, and the dewatering well pipe is installed in the foundation pit dewatering well. The dewatering well cover is installed on the top of the dewatering well pipe.
[0006] In the above-mentioned dewatering well filter media system, the filter media bin also includes a load-bearing support; the packing inclined plate is supported by the load-bearing support.
[0007] The aforementioned dewatering well filter media system includes an upper support ring, a lower support ring, a support ring connecting beam, an upper support beam, a lower support beam, a load-bearing vertical beam, an upper connecting beam group, and a lower connecting beam group. The upper and lower support rings are connected by multiple support ring connecting beams to form the filler holes. Four upper support beams form an upper square frame, which is located above the upper support rings. Four lower support beams form a lower square frame, which is located in the plane of the lower support rings. The four right angles of the upper and lower square frames are connected by four load-bearing vertical beams. There are four groups of upper connecting beams, each group consisting of two upper connecting beams, with the tops of the two upper connecting beams in the same group fixed to the upper side. At the same right angle of the rectangular frame, the bottom ends of two upper connecting beams in the same group are fixed to the upper supporting ring. The eight upper connecting beams divide the upper supporting ring into four arc segments. The lower supporting ring and the lower rectangular frame are connected by the lower connecting beam group. The filler inclined plate includes an arc-shaped triangular plate and a straight-sided triangular plate. The arc-shaped triangular plate includes an arc-shaped base and straight waists set on both sides of the arc-shaped base. The arc-shaped base is fixedly connected to the arc segment of the upper supporting ring, and the straight waists are fixedly connected to the upper connecting beams on both sides of the arc segment. The straight-sided triangular plate includes a straight base and straight waists set on both sides of the straight base. The straight base is fixedly connected to the upper supporting beam, and the straight waists are fixedly connected to the upper connecting beams on both sides of the upper supporting beam.
[0008] In the above-mentioned dewatering well filter media system, the lower connecting beam group includes four lower connecting beams; the lower connecting beams are arranged along the vertical line of the lower support beams, and their two ends are connected to the lower support ring and the lower support beam, respectively.
[0009] In the above-mentioned dewatering well filter media system, the load-bearing support also includes four sets of intermediate connecting beams; each set of intermediate connecting beams includes two intermediate connecting beams. The bottom ends of the two intermediate connecting beams in the same set are fixed at the same right angle of the lower square frame, and the top ends of the two intermediate connecting beams in the same set are fixed on the upper support ring and connected to the bottom end of the corresponding upper connecting beam.
[0010] In the above-mentioned dewatering well filter media system, the bottom end of the load-bearing vertical beam is equipped with casters, and the casters are equipped with locking mechanisms.
[0011] In the above-mentioned dewatering well filter media system, the dewatering well cover includes a conical top cover and an insert cylinder fixed below the conical top cover; the insert cylinder is inserted from the top of the dewatering well pipe, and the conical top cover is located outside the dewatering well pipe.
[0012] In the above-mentioned dewatering well filter media filling system, the dewatering well cover also includes two well cover reinforcing ribs I and four well cover reinforcing ribs II; the two well cover reinforcing ribs I are cross-shaped and fixed between the conical top cover and the insert cylinder; the four well cover reinforcing ribs II are fixed inside the conical top cover; the bottom end of the well cover reinforcing ribs II is connected to the end of the well cover reinforcing ribs I, and the top end is connected to the top end of the conical top cover.
[0013] In the above-mentioned dewatering well filter media system, the outer wall of the anti-clogging pipe is symmetrically fixed with locking lugs.
[0014] The aforementioned dewatering well filter media packing system is made of steel.
[0015] Compared with the prior art, the present invention has the following beneficial effects.
[0016] 1. In this utility model, the filter media bin is equipped with a packing inclined plate. The packing inclined plate is funnel-shaped. The filter media is poured onto the packing inclined plate by a loader. The filter media will slide along the packing inclined plate into the annular space between the dewatering well pipe and the anti-clogging pipe, and can fill the side wall of the dewatering well on its own.
[0017] 2. This utility model adds an anti-clogging pipe at the ground of the dewatering well to reduce the friction between the filter material and the soil, which can solve the problem of filter material clogging the dewatering well opening caused by instantaneous material accumulation and improve construction efficiency.
[0018] 3. This utility model adds a protective support for the dewatering well, which is used to stabilize the dewatering pipe during the filling of filter material, reduce the amplitude of the dewatering pipe swaying, thereby ensuring that the dewatering well pipe is centered and improving the quality of the project.
[0019] 4. The well cover for dewatering is conical to prevent filter material from accumulating on it.
[0020] 5. This utility model is a self-developed filter media filling system for dewatering wells. It is convenient to transport and move. Compared with conventional methods, it greatly saves construction time and labor, reduces construction costs, and greatly improves project quality and economic benefits. It is well worth promoting on a large scale. Attached Figure Description
[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the filter media packing system for dewatering wells;
[0023] Figure 2 This is a welding diagram of the packing inclined plate and the load-bearing support;
[0024] Figure 3 This is a schematic diagram of a structure supported by forces.
[0025] Figure 4 This is a schematic diagram of the structure of a dewatering well cover;
[0026] Figure 5 Welding diagram for the protective support and anti-clogging pipe of the dewatering well.
[0027] In the diagram: 1-filling inclined plate; 1.1-arc-edge triangular plate; 1.2-straight-edge triangular plate; 2-load-bearing support; 2.1-upper support ring; 2.2-lower support ring; 2.3-support ring connecting beam; 2.4-upper support beam; 2.5-lower support beam; 2.6-load-bearing vertical beam; 2.7-upper connecting beam; 2.8-lower connecting beam; 2.9-middle connecting beam; 3-dewatering well cover; 3.1-conical top cover; 3.2-insertion cylinder; 3.3-well cover load-bearing rib I; 3.4-well cover load-bearing rib II; 4-dewatering well pipe; 5-dewatering well protective support; 5.1-inner protective ring; 5.2-outer protective ring; 5.3-protective ring connecting rib; 6-anti-clogging pipe; 7-universal wheel; 8-locking lug. Detailed Implementation
[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0029] Example 1
[0030] This embodiment provides a dewatering well filter media filling system, including a filter media bin, a dewatering well cover 3, a dewatering well pipe 4, a dewatering well protective support 5, and an anti-clogging pipe 6; the filter media bin is provided with filling holes and a filling inclined plate 1 surrounding the filling holes, the diameter of the filling holes is matched with the diameter of the foundation pit dewatering well, and the height of the filling inclined plate 1 gradually decreases from the edge to the filling holes; the dewatering well protective support 5 includes an inner protective ring 5.1, an outer protective ring 5.2, and a protective ring connecting rib 5. 3; The inner protective ring 5.1 and the outer protective ring 5.2 are concentrically arranged and connected by multiple protective ring connecting ribs 5.3; The outer wall of the anti-clogging pipe 6 is fixedly connected to the filling hole, and the inner wall of the anti-clogging pipe 6 is fixedly connected to the outer protective ring 5.2. The bottom end of the anti-clogging pipe 6 is inserted into the foundation pit dewatering well; The outer wall of the dewatering well pipe 4 is fixedly connected to the inner protective ring 5.1, and the dewatering well pipe 4 is installed in the foundation pit dewatering well; The dewatering well cover 3 is installed on the top of the dewatering well pipe 4.
[0031] In the above-mentioned dewatering well filter media system, the filter media bin also includes a force-bearing support 2; the packing inclined plate 1 is supported by the force-bearing support 2.
[0032] In the aforementioned dewatering well filter media system, the load-bearing support 2 includes an upper support ring 2.1, a lower support ring 2.2, a support ring connecting beam 2.3, an upper support beam 2.4, a lower support beam 2.5, a load-bearing vertical beam 2.6, an upper connecting beam group, and a lower connecting beam group. The upper support ring 2.1 and the lower support ring 2.2 are connected by multiple support ring connecting beams 2.3 to form a filler hole. Four upper support beams 2.4 form an upper square frame, which is located above the upper support ring 2.1. Four lower support beams 2.5 form a lower square frame, which is located in the plane of the lower support ring 2.2. The four right angles of the upper and lower square frames are connected by four load-bearing vertical beams 2.6. There are four groups of upper connecting beams, each group including two upper connecting beams 2.7, with the tops of the two upper connecting beams 2.7 in the same group fixed. At the same right angle of the upper square frame, the bottom ends of two upper connecting beams 2.7 in the same group are fixed to the upper supporting ring 2.1. The eight upper connecting beams 2.7 divide the upper supporting ring 2.1 into four arc segments. The lower supporting ring 2.2 and the lower square frame are connected by the lower connecting beam group. The filler inclined plate 1 includes an arc-edged triangular plate 1.1 and a straight-edged triangular plate 1.2. The arc-edged triangular plate 1.1 includes an arc-shaped base and straight waists on both sides of the arc-shaped base. The arc-shaped base is fixedly connected to the arc segment of the upper supporting ring 2.1, and the straight waists are fixedly connected to the upper connecting beams 2.7 on both sides of the arc segment. The straight-edged triangular plate 1.2 includes a straight base and straight waists on both sides of the straight base. The straight base is fixedly connected to the upper supporting beam 2.4, and the straight waists are fixedly connected to the upper connecting beams 2.7 on both sides of the upper supporting beam 2.4.
[0033] In the above-mentioned dewatering well filter media system, the lower connecting beam group includes four lower connecting beams 2.8; the lower connecting beams 2.8 are arranged along the vertical line of the lower support beams 2.5, and their two ends are connected to the lower support rings 2.2 and the lower support beams 2.5 respectively.
[0034] In the above-mentioned dewatering well filter media system, the load-bearing support 2 also includes four sets of intermediate connecting beams; each set of intermediate connecting beams includes two intermediate connecting beams 2.9. The bottom ends of the two intermediate connecting beams 2.9 in the same set are fixed at the same right angle of the lower square frame, and the top ends of the two intermediate connecting beams 2.9 in the same set are fixed on the upper support ring 2.1 and connected to the bottom end of the corresponding upper connecting beam 2.7.
[0035] In the above-mentioned dewatering well filter media system, the bottom end of the load-bearing vertical beam 2.6 is equipped with a caster wheel 7, which is equipped with a locking mechanism.
[0036] In the above-mentioned dewatering well filter media filling system, the dewatering well cover 3 includes a conical top cover 3.1 and an insertion cylinder 3.2 fixed below the conical top cover 3.1; the insertion cylinder 3.2 is inserted from the top of the dewatering well pipe 4, and the conical top cover 3.1 is located outside the dewatering well pipe 4.
[0037] In the above-mentioned dewatering well filter media filling system, the dewatering well cover 3 also includes two well cover reinforcing ribs I 3.3 and four well cover reinforcing ribs II 3.4; the two well cover reinforcing ribs I 3.3 are cross-fixed between the conical top cover 3.1 and the insert cylinder 3.2; the four well cover reinforcing ribs II 3.4 are fixed inside the conical top cover 3.1; the bottom end of the well cover reinforcing ribs II 3.4 is connected to the end of the well cover reinforcing ribs I 3.3, and the top end is connected to the top end of the conical top cover 3.1.
[0038] In the above-mentioned dewatering well filter media system, the outer wall of the anti-clogging pipe 6 is symmetrically fixed with locking lugs 8.
[0039] Compared with the previous method of filling filter media in dewatering wells, the above-mentioned dewatering well filter media filling system is more convenient to transport and move, and the mechanical construction greatly improves the work efficiency. At the same time, by reducing labor and machinery costs, the economic benefits are greatly improved. Moreover, it can ensure that the well pipe is centered and the thickness of the surrounding filter media is uniform, resulting in a better water filtration effect.
[0040] Example 2
[0041] The dewatering well filter media system provided in this embodiment is made of steel, and the steel materials are welded together.
[0042] The curved-edge triangular plate has a leg length of 1.46m and a center angle of 18.5°. It is made of 4mm thick stainless steel plate.
[0043] The straight-sided triangular plate has a leg length of 1.46m and a base length of 2m, and is made of 4mm thick stainless steel plate.
[0044] The upper support ring 2.1 and the lower support ring 2.2 have a diameter of 600mm and are made of Φ12 hot-rolled ribbed steel bars.
[0045] There are four supporting circular connecting beams, 2.3 in total, which are made of steel pipes with specifications of DN40, outer diameter of 43mm, wall thickness of 3mm and length of 0.4m.
[0046] The upper support beam 2.4 and the lower support beam 2.5 are made of Φ12 hot-rolled ribbed steel bars with a length of 2m.
[0047] The load-bearing vertical beam 2.6 uses a steel pipe with a specification of DN40, an outer diameter of 43mm, a wall thickness of 3mm, and a length of 1.2m.
[0048] The upper connecting beam 2.7 uses Φ12 hot-rolled ribbed steel bars with a length of 1.46m.
[0049] The lower connecting beam 2.8 uses Φ12 hot-rolled ribbed steel bars with a length of 0.7m.
[0050] The central connecting beam 2.9 uses Φ12 hot-rolled ribbed steel bars with a length of 1.29m.
[0051] The diameter of the 7-inch caster wheel is 60mm.
[0052] The conical top cover has a waist length of 0.5m and a center angle of 180°, and is made of 4mm thick stainless steel.
[0053] The insert cylinder 3.2 is made of 4mm thick stainless steel and a square steel plate with dimensions of 1.2×0.1m, welded into a cylindrical shape with a diameter of 0.4m and a height of 0.1m, and then welded to the conical top cover 3.1.
[0054] The reinforcing bars of the manhole cover, I3.3, are made of Φ12 hot-rolled ribbed steel bars with a length of 0.5m.
[0055] The reinforcing bars of the manhole cover, II3.4, are made of Φ12 hot-rolled ribbed steel bars with a length of 0.5m.
[0056] The inner protective ring has a diameter of 0.45m and is made of Φ16 hot-rolled ribbed steel bars.
[0057] The outer protective ring is 5.2 mm in diameter and 0.6 m in diameter, and is made of Φ16 hot-rolled ribbed steel bars.
[0058] There are four protective ring connecting bars (5.3 in total), which are hot-rolled ribbed steel bars with a diameter of Φ16 and a length of 0.075m.
[0059] The anti-clogging pipe 6 is made of stainless steel with a specification of 1.88×0.6m and a thickness of 4mm.
[0060] Cartier lug 8 is made of Φ16 hot-rolled ribbed steel bars, 0.2m long, welded into a triangle.
[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A precipitation well filter pack system, characterized by, The filter bin, the dewatering well cover (3), the dewatering well pipe (4), the dewatering well protection support (5) and the anti-blocking pipe (6) are included. The filter bin is provided with a filler hole and a filler inclined plate (1) surrounding the filler hole; the diameter of the filler hole is matched with the diameter of the dewatering well of the foundation pit; the height of the filler inclined plate (1) gradually decreases from the edge to the filler hole; the dewatering well protection support (5) includes an inner protection ring (5.1), an outer protection ring (5.2) and a protection ring connecting rib (5.3); The inner protection ring (5.1) and the outer protection ring (5.2) are concentrically arranged and connected through the protection ring connecting rib (5.3); The outer wall of the anti-blocking pipe (6) is fixedly connected with the filler hole, the inner wall of the anti-blocking pipe (6) is fixedly connected with the outer protection ring (5.2), and the bottom end of the anti-blocking pipe (6) is inserted into the dewatering well of the foundation pit; The outer wall of the dewatering well pipe (4) is fixedly connected with the inner protection ring (5.1), and the dewatering well pipe (4) is installed in the dewatering well of the foundation pit; The dewatering well cover (3) is installed at the top end of the dewatering well pipe (4).
2. The precipitation well filter pack system of claim 1, wherein, The filter bin further includes a stress support (2); The filler inclined plate (1) is supported by the stress support (2).
3. The precipitation well filter pack system of claim 2, wherein, The stress support (2) includes an upper support ring (2.1), a lower support ring (2.2), a support ring connecting beam (2.3), an upper support beam (2.4), a lower support beam (2.5), a stress vertical beam (2.6), an upper connecting beam group and a lower connecting beam group; The upper support ring (2.1) and the lower support ring (2.2) are connected through the support ring connecting beam (2.3) to form the filler hole; Four upper support beams (2.4) surround an upper square frame, and the upper square frame is located above the upper support ring (2.1); Four lower support beams (2.5) surround a lower square frame, and the lower square frame is located in the plane of the lower support ring (2.2); Four right angles of the upper square frame and the lower square frame are connected through four stress vertical beams (2.6); Each of the upper connecting beam groups includes two upper connecting beams (2.7), the top ends of the two upper connecting beams (2.7) in the same group are fixed on the same right angle of the upper square frame, the bottom ends of the two upper connecting beams (2.7) in the same group are fixed on the upper support ring (2.1), and eight upper connecting beams (2.7) divide the upper support ring (2.1) into four circular arc segments; The lower support ring (2.2) and the lower square frame are connected through the lower connecting beam group; The filler inclined plate (1) includes an arc edge triangular plate (1.1) and a straight edge triangular plate (1.2); The arc edge triangular plate (1.1) includes an arc line-shaped bottom and straight line-shaped waists arranged on both sides of the arc line-shaped bottom, the arc line-shaped bottom is fixedly connected with the circular arc segment of the upper support ring (2.1), and the straight line-shaped waists are fixedly connected with the upper connecting beams (2.7) on both sides of the circular arc segment; The straight edge triangular plate (1.2) includes a straight line-shaped bottom and straight line-shaped waists arranged on both sides of the straight line-shaped bottom, the straight line-shaped bottom is fixedly connected with the upper support beam (2.4), and the straight line-shaped waists are fixedly connected with the upper connecting beams (2.7) on both sides of the upper support beam (2.4).
4. The precipitation well filter pack system of claim 3, wherein, The lower connecting beam group comprises four lower connecting beams (2.8); The lower connecting beams (2.8) are arranged along the center line of the lower support beam (2.5), and the two ends are connected with the lower support ring (2.2) and the lower support beam (2.5) respectively.
5. The precipitation well filter pack system of claim 3, wherein, The force support (2) further comprises four groups of middle connecting beam groups; Each group of middle connecting beam groups comprises two middle connecting beams (2.9), the bottom ends of the two middle connecting beams (2.9) in the same group are fixed on the same right angle of the lower square frame, and the top ends of the two middle connecting beams (2.9) in the same group are fixed on the upper support ring (2.1) and connected with the bottom ends of the corresponding upper connecting beams (2.7).
6. The precipitation well filter pack system of claim 3, wherein, The bottom end of the force vertical beam (2.6) is provided with a universal wheel (7), and the universal wheel (7) is provided with a locking mechanism.
7. The precipitation well filter pack system according to claim 1, wherein, The precipitation well cover (3) comprises a conical top cover (3.1) and a plug-in cylinder (3.2) fixed below the conical top cover (3.1); The plug-in cylinder (3.2) is inserted from the top end of the precipitation well pipe (4), and the conical top cover (3.1) is located outside the precipitation well pipe (4).
8. The precipitation well filter pack system of claim 7, wherein, The precipitation well cover (3) further comprises two well cover force bars I (3.3) and four well cover force bars II (3.4); The two well cover force bars I (3.3) are fixed crosswise between the conical top cover (3.1) and the plug-in cylinder (3.2); The four well cover force bars II (3.4) are fixed in the conical top cover (3.1); The bottom end of the well cover force bar II (3.4) is connected with the end of the well cover force bar I (3.3), and the top end is connected with the top end of the conical top cover (3.1).
9. The precipitation well filter pack system of claim 1, wherein, The outer wall of the anti-blocking pipe (6) is symmetrically fixed with a card hanging ear (8).
10. The precipitation well filter pack system of claim 1, wherein, The steel material is used.