Well casing of dewatering well

Abstract

The utility model relates to the technical field of rock soil and environment, and discloses a well casing of a dewatering well, which comprises a pipe body provided with a double-layer filter screen, a power device and a drainage device, an inner-layer fine filter screen is used for blocking small particles, and an outer-layer rough filter screen is used for blocking larger particles, so that the particles with different sizes are effectively separated, and the drainage device is used for drainage. The cleaning device installed at the bottom of the pipe body can be driven by the power device to move up and down along the inner wall of the pipe body and the surface of the filter screen, the inner wall of the pipe body and the filter screen are cleaned through the cleaning brush, and when the first cleaning ring and the second cleaning ring move to the highest position, a step-shaped structure facilitating sewage discharging is formed. The drainage device in the fine filter screen is connected with the cleaning device through a detachable structure, and efficient drainage can be achieved by means of vertical movement of the cleaning device.

Description

Technical Field

[0001] The utility model relates to the field of rock, soil and environmental technology, and more specifically, to a precipitation well pipe. Background Art

[0002] Precipitation well pipes are a common urban infrastructure used to collect rainwater, surface water and reduce the risk of urban waterlogging. Traditional precipitation well pipes often have some shortcomings, such as low filtration efficiency and the inability to effectively separate particles of different sizes, resulting in the well water containing more impurities, which not only affects the cleanliness of the well water, but also shortens the service life of the well pipe, because a large amount of impurities can easily cause blockage, slowing down the drainage speed and requiring frequent manual cleaning and maintenance.

[0003] Furthermore, the traditional well pipe design lacks an efficient drainage mechanism. In extreme weather conditions such as heavy rainfall, the drainage capacity inside the well pipe may not be able to keep up with the influx of large amounts of water, causing water accumulation or even overflow, increasing the risk of urban flooding. The existence of these problems makes the existing technology urgently need an improved solution that can improve filtration efficiency, simplify the cleaning and maintenance process, and enhance drainage capacity. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a precipitation well pipe, which has the advantages of efficient filtration, automatic cleaning and rapid drainage.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a precipitation well pipe, comprising a pipe body with a through hole and a manhole cover located on the top of the pipe body, the inner cavity of the pipe body is equipped with a double-layer filter screen, the inner layer is a fine filter screen for blocking fine particles, and the outer layer is a coarse filter screen for intercepting larger particles, a cleaning device is installed at the bottom of the inner cavity of the pipe body, and a power device for driving the cleaning device to move up and down is arranged at the bottom of the pipe body;

[0006] The cleaning device comprises a cleaning ring 1 located between the inner wall of the tube body and the coarse filter screen and a cleaning ring 2 located between the coarse filter screen and the fine filter screen. The cleaning ring 2 is arranged above the cleaning ring 1. The height of the fine filter screen is higher than that of the coarse filter screen. When the cleaning ring 1 and the cleaning ring 2 reach the highest position, they form a stepped structure for sewage discharge with the coarse filter screen and the fine filter screen.

[0007] A drainage device is arranged inside the fine filter, and the drainage device can be connected to the cleaning device through a detachable structure. The drainage device utilizes the action of the power device to achieve efficient drainage through the cleaning device.

[0008] As a preferred technical solution of the utility model, a plurality of anti-fouling sleeves are installed on the top of the cleaning ring 1 and the cleaning ring 2;

[0009] The power device includes a plurality of screw rods, the tops of which pass through a cleaning ring 1, a cleaning ring 2 and an anti-fouling sleeve;

[0010] The drainage device comprises a column, and the detachable structure comprises a top plate. The bottom of the column passes through the top plate and the well cover and extends to the inner cavity of the pipe body.

[0011] As a preferred technical solution of the utility model, the bottom of the top plate is fixedly connected to the top of the anti-fouling sleeve; an annular protrusion is provided at the top of the outer ring of the fine filter, and a plurality of rectangular holes are opened at the top of the annular protrusion;

[0012] The screw rod is located in the inner cavity of the anti-fouling sleeve, and the screw rod is threadedly connected with the cleaning ring 1 and the cleaning ring 2;

[0013] The top of the anti-fouling sleeve passes through the rectangular hole and the well cover and is fixedly connected to the bottom of the top plate.

[0014] As a preferred technical solution of the utility model, an annular installation space is provided at the bottom of the tube body, and a cleaning brush is fixed on the outer ring of the cleaning ring 1 and the cleaning ring 2;

[0015] A gear is fixed at the bottom of the screw rod, the outer ring of the gear is equipped with a rack, the bottom of the gear is connected to the motor, and the bottom of the motor is fixed to the bottom wall of the installation space.

[0016] As a preferred technical solution of the utility model, a plug body is fixed at the bottom of the column, a water outlet pipe is arranged on the surface of the plug body, and an electric valve is arranged on the outer ring of the water outlet pipe;

[0017] The outer ring of the top plate is provided with a fixing screw rod, and the fixing screw rod thread passes through the top plate and is threadedly connected with the column.

[0018] As a preferred technical solution of the utility model, a water outlet hole is provided on the top of the outer ring of the tube body, and a supporting member is installed on the top of the outer ring of the tube body, and the supporting member is connected to the ground through an insertion rod.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] 1. The utility model can effectively separate particles of different sizes through the double filtering mechanism of the inner fine filter and the outer coarse filter, ensuring the cleanliness of the well water and extending the service life of the well pipe;

[0021] In addition, the cleaning device can move up and down along the inner wall of the pipe body and the surface of the filter screen under the drive of the power device, and use the cleaning brush to clean the inner wall of the pipe body and the filter screen. At the same time, when the cleaning ring 1 and the cleaning ring 2 reach the highest position, they and the coarse filter screen and the fine filter screen will form a stepped structure that is conducive to the discharge of sewage, so as to achieve thorough cleaning of the inner wall of the pipe body and the filter screen, maintain the filtering effect, and reduce blockage and maintenance times;

[0022] Moreover, the inner cavity of the fine filter is equipped with a drainage device, which can be connected to the cleaning device through a detachable structure. The drainage device can efficiently drain water with the help of the up and down movement of the cleaning device.

[0023] 2. The anti-fouling sleeve of the utility model can prevent mud and other dirt from entering the screw rod, reduce wear and failure, and the detachable design between the top plate and the cleaning device and the drainage device allows cleaning and drainage to be carried out simultaneously or separately. The design of the water outlet hole and the supporting part on the top of the outer ring of the pipe body helps to achieve smooth discharge of water and firm fixation of the well pipe, ensuring the safety and efficiency of the well pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of the structure of the utility model;

[0025] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0026] Figure 3 For this utility model Figure 2 The enlarged view of point A in the middle;

[0027] Figure 4 For this utility model Figure 2 The enlarged view of point B in the middle;

[0028] Figure 5 It is a cross-sectional view of the top of the structure of the utility model;

[0029] Figure 6 It is a cross-sectional view of the bottom end of the structure of the utility model;

[0030] Figure 7 It is a three-dimensional diagram of the power device of the utility model structure;

[0031] Figure 8 It is a three-dimensional diagram of the coarse filter screen of the utility model structure;

[0032] Fig. 9 This is a three-dimensional diagram of the fine filter screen of the utility model structure;

[0033] Fig.10 The utility model is a cross-sectional view of a stepped structure for sewage discharge formed by the structure of the utility model.

[0034] In the figure:

[0035] 10. Pipe body; 11. Through hole; 12. Manhole cover; 13. Installation space; 14. Water outlet hole;

[0036] 15. Supporting member; 16. Insertion rod;

[0037] 20. Fine filter; 21. Ring-shaped protrusion; 22. Rectangular hole;

[0038] 30. Rough filter;

[0039] 40. Cleaning device; 41. Cleaning ring 1; 42. Cleaning ring 2; 43. Anti-fouling sleeve; 44. Cleaning brush;

[0040] 50. Power device; 51. Screw; 52. Gear; 53. Rack; 54. Motor;

[0041] 60. Drainage device; 61. Column; 62. Plug; 63. Water outlet pipe; 64. Electric valve;

[0042] 70. Detachable structure; 71. Top plate; 72. Fixing screw. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] like Figures 1 to 10 As shown, the utility model provides a precipitation well pipe, comprising a pipe body 10 with a through hole 11 and a well cover 12 located on the top of the pipe body 10, the inner cavity of the pipe body 10 is configured with a double-layer filter screen, the inner layer is a fine filter screen 20 for blocking fine particles, and the outer layer is a coarse filter screen 30 for intercepting larger particles, a cleaning device 40 is installed at the bottom of the inner cavity of the pipe body 10, and a power device 50 for driving the cleaning device 40 to move up and down is provided at the bottom of the pipe body 10;

[0045] The cleaning device 40 comprises a cleaning ring 1 41 located between the inner wall of the tube body 10 and the coarse filter 30 and a cleaning ring 2 42 located between the coarse filter 30 and the fine filter 20. The cleaning ring 2 42 is arranged above the cleaning ring 1 41. The height of the fine filter 20 is higher than the coarse filter 30. When the cleaning ring 1 41 and the cleaning ring 2 42 reach the highest position, they form a stepped structure for sewage discharge together with the coarse filter 30 and the fine filter 20.

[0046] A drainage device 60 is disposed inside the fine filter 20 . The drainage device 60 can be connected to the cleaning device 40 via a detachable structure 70 . The drainage device 60 utilizes the power device 50 to achieve efficient drainage through the cleaning device 40 .

[0047] The double-layer filter design greatly improves the particle separation efficiency. The inner fine filter 20 is made of microporous material, which is specially used to intercept tiny particles, such as fine sand, soil and other particulate pollutants. The size of these micropores is accurate to the micron level, ensuring that only clean water can pass through;

[0048] The outer coarse filter 30 has a larger pore structure and effectively intercepts larger suspended matter, such as leaves, paper fragments, plastic pieces and other urban waste. The design of this filter takes into account the large particles of impurities commonly found in drainage, preventing these substances from entering the next filtration stage or drainage system.

[0049] Among them, a plurality of anti-fouling sleeves 43 are installed on the top of the cleaning ring 1 41 and the cleaning ring 2 42;

[0050] The power device 50 includes a plurality of screw rods 51, the tops of the screw rods 51 pass through the cleaning ring 1 41, the cleaning ring 2 42 and the anti-fouling sleeve 43;

[0051] The drainage device 60 includes a column 61 , and the detachable structure 70 includes a top plate 71 . The bottom of the column 61 passes through the top plate 71 and the manhole cover 12 and extends to the inner cavity of the pipe body 10 .

[0052] The sealing performance of the anti-fouling sleeve 43 significantly reduces the wear and contamination of the screw rod 51, which not only extends the service life of the screw rod 51, but also improves the overall cleaning efficiency by reducing maintenance requirements. At the same time, the design of the anti-fouling sleeve 43 enables it to move synchronously with the up and down movement of cleaning ring 1 41 and cleaning ring 2 42.

[0053] The bottom of the top plate 71 is fixedly connected to the top of the anti-fouling sleeve 43; the top of the outer ring of the fine filter 20 is provided with an annular protrusion 21, and the top of the annular protrusion 21 is provided with a plurality of rectangular holes 22;

[0054] The screw rod 51 is located in the inner cavity of the anti-fouling sleeve 43, and the screw rod 51 is threadedly connected with the cleaning ring 1 41 and the cleaning ring 2 42;

[0055] The top of the anti-fouling sleeve 43 passes through the rectangular hole 22 and the well cover 12 and is fixedly connected to the bottom of the top plate 71 .

[0056] The threaded connection design between the outer ring of the screw 51 and the cleaning ring 1 41 and the cleaning ring 2 42 ensures the synchronization and accuracy of the cleaning action. As the screw 51 rotates, the cleaning ring moves up and down along the precise thread track of the screw 51, thereby achieving effective cleaning of the filter screen.

[0057] Moreover, the fixed connection between the top plate 71 and the anti-fouling sleeve 43 not only improves the structural stability of the entire cleaning device 40, but also realizes a key function, allowing the top plate 71 to move synchronously with the up and down movement of the cleaning ring 1 41 and the cleaning ring 2 42.

[0058] The bottom of the tube body 10 is provided with an annular installation space 13, and the outer rings of the cleaning ring 1 41 and the cleaning ring 2 42 are fixed with cleaning brushes 44;

[0059] A gear 52 is fixed at the bottom of the screw rod 51 , and a rack 53 is provided on the outer ring of the gear 52 . The bottom of the gear 52 is connected to a motor 54 , and the bottom of the motor 54 is fixed to the bottom wall of the installation space 13 .

[0060] The gear 52 can be driven to rotate synchronously through the rack 53, thereby driving the motor 54 to rotate synchronously, and the cleaning brush 44 is fixed on the outer rings of the cleaning ring 1 41 and the cleaning ring 2 42. As the cleaning ring 1 41 and the cleaning ring 2 42 move up and down, the cleaning brush 44 directly acts on the filter to effectively scrape off the attached dirt and impurities. This direct contact cleaning method improves the cleaning efficiency and ensures the continuous performance of the filter.

[0061] A plug body 62 is fixed at the bottom of the column 61, a water outlet pipe 63 is provided on the surface of the plug body 62, and an electric valve 64 is provided on the outer ring of the water outlet pipe 63;

[0062] A fixing screw 72 is disposed on the outer ring of the top plate 71 . The fixing screw 72 passes through the top plate 71 and is threadedly connected to the column 61 .

[0063] By using the electric valve 64, the drainage volume can be dynamically adjusted according to the actual drainage demand, thereby achieving efficient utilization of resources and avoiding unnecessary waste;

[0064] The fixed screw 72 is designed to establish a detachable and stable connection between the top plate 71 and the column 61. During cleaning or maintenance operations, the upward movement of the top plate 71 can guide the column 61 and the plug body 62 to move upward synchronously. At this time, the electric valve 64 remains in an open state, allowing water to flow into the bottom of the inner cavity of the tube body 10;

[0065] When the plug body 62 moves up to the top, the electric valve 64 is closed, and then the plug body 62 moves down to accelerate the discharge of water, effectively clearing the accumulated water in the inner cavity of the tube body 10.

[0066] A water outlet hole 14 is provided at the top of the outer circle of the tube body 10 , and a supporting member 15 is installed at the top of the outer circle of the tube body 10 . The supporting member 15 is connected to the ground through an insertion rod 16 .

[0067] The design of the supporting member 15 and the insert rod 16 provides additional support for the pipe body 10. The supporting member 15 is installed on the top of the outer ring of the pipe body 10 and is connected to the ground through the insert rod 16 to ensure that the pipe body 10 will not shift even under high-flow drainage or severe weather conditions.

[0068] The use process of this utility model:

[0069] The pipe body 10 is embedded in the pre-dug well hole, and the well cover 12 is covered on the top of the pipe body 10 to ensure its stability and safety;

[0070] When rainwater flows into the pipe body 10, larger particles of impurities are first intercepted by the outer coarse filter 30, while fine particles are intercepted by the inner fine filter 20. Through this double-layer filtering mechanism, impurities in rainwater are effectively separated;

[0071] When the fine filter 20 and the coarse filter 30 are contaminated or the regular cleaning cycle arrives, the power device 50 is started to move the cleaning device 40 up and down along the screw rod 51, and the cleaning ring 1 41 and the cleaning ring 2 42 drive the cleaning brush 44 to clean the filter. When the cleaning ring 1 41 and the cleaning ring 2 42 reach the highest position, they form a stepped structure for sewage discharge with the coarse filter 30 and the fine filter 20, and the sewage is discharged from the water outlet hole 14;

[0072] When it is necessary to efficiently drain the accumulated water in the inner cavity of the tube body 10, a detachable and stable connection is established between the top plate 71 and the column 61 by using the fixing screw 72. The upward movement of the top plate 71 can guide the column 61 and the plug body 62 to move upward synchronously. At this time, the electric valve 64 remains open, allowing water to flow into the bottom of the inner cavity of the tube body 10. When the plug body 62 moves to the top, the electric valve 64 is closed. Subsequently, the downward movement of the plug body 62 will accelerate the discharge of water, thereby effectively clearing the accumulated water in the inner cavity of the tube body 10.

[0073] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drainage well pipe, comprising a pipe body (10) having a through hole (11) and a well cover (12) located on the top of the pipe body (10), characterized in that: The inner cavity of the tube body (10) is provided with a double-layer filter screen, the inner layer is a fine filter screen (20) for blocking fine particles, and the outer layer is a coarse filter screen (30) for intercepting larger particles. A cleaning device (40) is installed at the bottom of the inner cavity of the tube body (10), and a power device (50) for driving the cleaning device (40) to move up and down is provided at the bottom of the tube body (10); The cleaning device (40) comprises a cleaning ring (41) located between the inner wall of the tube body (10) and the coarse filter (30) and a cleaning ring (42) located between the coarse filter (30) and the fine filter (20). The cleaning ring (42) is arranged above the cleaning ring (41). The height of the fine filter (20) is higher than that of the coarse filter (30). When the cleaning ring (41) and the cleaning ring (42) reach the highest position, they form a stepped structure for sewage discharge together with the coarse filter (30) and the fine filter (20). A drainage device (60) is disposed inside the fine filter (20). The drainage device (60) can be connected to the cleaning device (40) via a detachable structure (70). The drainage device (60) drains water through the cleaning device (40) under the action of the power device (50).

2. A precipitation well pipe according to claim 1, characterized in that: A plurality of anti-fouling sleeves (43) are installed on the top of the cleaning ring 1 (41) and the cleaning ring 2 (42); The power device (50) comprises a plurality of screw rods (51), the tops of the screw rods (51) pass through a cleaning ring 1 (41), a cleaning ring 2 (42) and an anti-fouling sleeve (43); The drainage device (60) comprises a column (61), the detachable structure (70) comprises a top plate (71), and the bottom of the column (61) passes through the top plate (71) and the manhole cover (12) and extends to the inner cavity of the pipe body (10).

3. A precipitation well pipe according to claim 2, characterized in that: The bottom of the top plate (71) is fixedly connected to the top of the anti-fouling sleeve (43); an annular protrusion (21) is provided at the top of the outer ring of the fine filter screen (20), and a plurality of rectangular holes (22) are opened at the top of the annular protrusion (21); The screw rod (51) is located in the inner cavity of the anti-fouling sleeve (43), and the screw rod (51) is threadedly connected with the cleaning ring 1 (41) and the cleaning ring 2 (42); The top of the anti-fouling sleeve (43) passes through the rectangular hole (22) and the well cover (12) and is fixedly connected to the bottom of the top plate (71).

4. A precipitation well pipe according to claim 2, characterized in that: An annular installation space (13) is provided at the bottom of the tube body (10), and cleaning brushes (44) are fixed to the outer rings of the cleaning ring 1 (41) and the cleaning ring 2 (42); A gear (52) is fixed at the bottom of the screw rod (51), the outer ring of the gear (52) is provided with a rack (53), the bottom of the gear (52) is connected to a motor (54), and the bottom of the motor (54) is fixed to the bottom wall of the installation space (13).

5. A precipitation well pipe according to claim 2, characterized in that: A plug body (62) is fixed at the bottom of the column (61), a water outlet pipe (63) is provided on the surface of the plug body (62), and an electric valve (64) is provided on the outer ring of the water outlet pipe (63); The outer ring of the top plate (71) is provided with a fixing screw (72), and the fixing screw (72) is threadedly passed through the top plate (71) and is threadedly connected to the column (61).

6. A precipitation well pipe according to claim 1, characterized in that: A water outlet hole (14) is provided at the top of the outer ring of the tube body (10), and a supporting member (15) is installed at the top of the outer ring of the tube body (10). The supporting member (15) is connected to the ground through an insertion rod (16).

Images