Water leakage prevention device for subway station in water-rich stratum and method thereof

Abstract

This invention relates to the field of station leakage prevention technology, and discloses a device for preventing leakage in subway stations in water-rich strata. The device includes an operating box, with a positioning block rotatably mounted on the bottom side inside the operating box. A positioning gear is fixedly mounted on the bottom of the positioning cylinder, and a positioning shaft is symmetrically mounted on the lower end face of the positioning gear. A positioning cylinder is mounted on the positioning shaft through a positioning part, and a prevention cylinder is fixedly mounted on the bottom of the positioning cylinder. A prevention cavity is connected to the inside of the prevention cylinder along its axial direction. Multiple grooves are provided on the sidewall of the prevention cavity along its axial direction. A sealing ring connected to the prevention cavity is installed at the bottom of the prevention cylinder. A slag discharge mechanism is also provided inside the prevention cylinder, and a slurry inlet mechanism is provided at the upper end of the prevention cylinder. The device also includes a penetration mechanism and discloses its prevention method. This invention not only achieves effective drainage of water from the leakage location but also effectively seals the internal slurry, greatly ensuring the prevention effect of leakage in subway stations and demonstrating strong practicality.

Description

Technical Field

[0001] This invention relates to the field of station leakage prevention technology, specifically a device and method for preventing water leakage in subway stations in water-rich strata. Background Technology

[0002] With the rapid development of my country's economy, infrastructure construction has also accelerated. To alleviate urban traffic congestion, a surge in subway construction has emerged. Urban subway construction not only perfectly meets demand but also does not occupy surface space. Subway engineering started relatively late in my country's transportation sector, resulting in many participating units lacking experience in this field. In addition, the construction environment of subway projects is quite special, with relatively deep station excavations and high groundwater pressure in water-rich strata with high water head. Any cracks in the concrete structure can lead to water leakage in the station.

[0003] Underground engineering projects are located below the surface and are subject to long-term seepage of groundwater. Inadequate waterproofing not only severely impacts the structure's durability and lifespan, but also causes significant disruptions to normal use once groundwater seeps into the building. This increases subsequent maintenance costs and operating expenses. Furthermore, substantial leakage can cause subsidence of the surrounding soil and negatively affect the groundwater environment. However, most existing station leakage prevention devices rely on diversion methods, which fail to fundamentally solve the leakage problem. Therefore, further improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for preventing water leakage in subway stations in water-rich strata, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A water leakage prevention device for subway stations in water-rich strata includes an operation box. A positioning block is rotatably mounted on the bottom side of the operation box. A positioning gear is fixedly mounted on the bottom of the positioning block. A positioning shaft is symmetrically mounted on the lower end face of the positioning gear. A positioning cylinder is mounted on the positioning shaft via a positioning part. A prevention cylinder is fixedly mounted on the bottom of the positioning cylinder. A prevention cavity is installed inside the prevention cylinder along its axial direction. Multiple grooves are provided on the sidewall of the prevention cavity along its axial direction. A sealing ring connected to the prevention cavity is installed at the bottom of the prevention cylinder. A slag discharge mechanism is also provided inside the prevention cylinder. A slurry inlet mechanism is provided at the upper end of the prevention cylinder. The device also includes a penetration mechanism for changing the vertical position of the prevention cylinder.

[0007] As an improvement of the present invention: a rotary motor is installed inside the operating box, the output end of the rotary motor is connected to a rotary shaft, and a rotary gear is fixedly connected to the bottom of the rotary shaft, the rotary gear meshing with the positioning gear.

[0008] As an improvement of the present invention: the positioning part includes positioning strips symmetrically fixed on the outside of each positioning shaft, the positioning strips slidingly engaging with positioning grooves provided inside the positioning cylinder, and a positioning spring is also installed between the bottom of the positioning shaft and the inside of the positioning cylinder.

[0009] As an improvement of the present invention: the deep-penetrating mechanism includes a deep-penetrating motor installed inside the operating box, the output end of the deep-penetrating motor is connected to a deep-penetrating shaft, the bottom of the deep-penetrating shaft passes through a positioning block and is fitted with a telescopic cylinder through a threaded sleeve, the bottom of the telescopic cylinder is connected to the upper end of the prevention cylinder through a rotating sealing assembly, and the deep-penetrating mechanism also includes a limiting assembly.

[0010] As an improvement of the present invention: the limiting component includes limiting plates symmetrically fixed on both sides of the upper end of the telescopic cylinder, a limiting post slidably installed inside the limiting plate, a limiting block fixedly installed at the bottom of the limiting post, a limiting spring sleeved on the outside of the limiting post between the limiting block and the limiting plate, and the top of the limiting post symmetrically fixed at the lower end face of the positioning gear.

[0011] As an improvement of the present invention: the rotating sealing assembly includes a fixing ring fixed to the top of the prevention and control cylinder and communicating with the inside of the prevention and control cylinder, and a drainage ring is rotatably installed at the upper edge of the fixing ring, and the drainage ring is fixed to the bottom of the telescopic cylinder.

[0012] As an improvement of the present invention: the slurry inlet mechanism includes a slurry pipe connected to the slurry ring, a switching valve connected to the end of the slurry pipe, a slurry inlet connected to one end of the switching valve, and a slurry outlet connected to the other end of the switching valve.

[0013] As an improvement of the present invention: the slag discharge mechanism includes a slag discharge shaft that is rotatably installed along the axis at the edge of the inner wall of the prevention cylinder, and the slag discharge shaft is horizontally installed with a number of cutters equal to the number of cutting grooves along its axial direction. The slag discharge mechanism also includes a drive assembly.

[0014] As an improvement of the present invention: the drive assembly includes drive plates symmetrically fixedly installed on the upper end of the prevention and control cylinder, a drive shaft rotatably installed between the drive plates, a worm gear is provided on the drive shaft, and a worm wheel fixed to the top of the slag discharge shaft meshes with the outer side of the worm gear. A drive motor is also installed on one of the drive plates, and the output end of the drive motor is connected to the drive shaft.

[0015] A method for preventing water leakage in subway stations in water-rich strata includes the following steps:

[0016] S1. After aligning the prevention and control cylinder with the leakage location, start the rotating motor to drive the prevention and control cylinder to rotate. During this process, the prevention and control cylinder will continuously penetrate deeper into the leakage location through the infiltration mechanism.

[0017] S2. The reverse-starting rotary motor, in conjunction with the deep-entry mechanism, causes the prevention and control cylinder to be pulled out. Then, under the action of the slag discharge mechanism, the columnar soil block inside the prevention and control cylinder is continuously cut into small round blocks.

[0018] S3. Insert the prevention and control cylinder into the bottom of the leakage location again, and use the drainage and grouting mechanism to completely draw out the leakage water inside.

[0019] S4. After the water inside the leaking area is drained, the grout is injected into the area again using the grouting mechanism to finally seal and plug the leak.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. By setting a rotatable prevention cylinder and with the action of the in-depth mechanism, the purpose of extracting and expelling the seepage block is achieved. At the same time, with the action of the slag discharge mechanism, the seepage block is quickly discharged, providing a positional basis for subsequent leak sealing.

[0022] 2. By setting up a grout inlet mechanism and cooperating with the rotating sealing component, not only is the water inside the leakage location effectively discharged, but the grout inside is also effectively sealed, greatly ensuring the prevention and control effect of water leakage in subway stations, and it is highly practical. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0024] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0025] Figure 3 This is a top view of the overall structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the internal structure of the control box in this invention;

[0027] Figure 5 This is a schematic diagram of the structure of the in-depth mechanism in this invention;

[0028] Figure 6 This is a schematic diagram of the mounting structure of the positioning spring in this invention;

[0029] Figure 7 This is a schematic diagram of the positioning cylinder in this invention;

[0030] Figure 8 This is a schematic diagram of the slag discharge mechanism in this invention;

[0031] Figure 9 for Figure 8A magnified schematic diagram of part A in the diagram.

[0032] In the diagram: 1. Prevention cylinder; 2. Control box; 3. Control handle; 4. Control panel; 5. Positioning cylinder; 6. Positioning shaft; 7. Drainage ring; 8. Fixing ring; 9. Drainage pipe; 10. Switching valve; 11. Drainage port; 12. Rotary motor; 13. Deep insertion motor; 14. Rotary shaft; 15. Rotary gear; 16. Positioning gear; 17. Positioning block; 18. Deep insertion shaft; 19. Threaded sleeve; 20. Limiting post; 21. Positioning strip; 22. Telescopic cylinder; 23. Limiting plate; 24. Limiting block; 25. Limiting spring; 26. Positioning spring; 27. Positioning groove; 28. Slurry inlet; 29. ​​Prevention chamber; 30. Cutting groove; 31. Slag discharge shaft; 32. Cutter; 33. Worm gear; 34. Drive plate; 35. Drive shaft; 36. Worm gear; 37. Drive motor; 38. Sealing ring. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood through the specific circumstances.

[0036] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] Example 1: See Figures 1-9 In this embodiment of the invention, a water-rich stratum subway station leakage prevention device includes an operation box 2. A positioning block 17 is rotatably installed on the bottom side of the operation box 2. A positioning gear 16 is fixedly installed on the bottom of the positioning block 17. A positioning shaft 6 is symmetrically installed on the lower end face of the positioning gear 16. A positioning cylinder 5 is installed on the positioning shaft 6 through a positioning part. A prevention cylinder 1 is fixedly installed on the bottom of the positioning cylinder 5. A prevention cavity 29 is installed inside the prevention cylinder 1 along its axial direction. Multiple grooves 30 are provided on the side wall of the prevention cavity 29 along its axial direction. A sealing ring 38 is installed at the bottom of the prevention cylinder 1 and is connected to the prevention cavity 29. A slag discharge mechanism is also provided inside the prevention cylinder 1. A slurry inlet mechanism is provided at the upper end of the prevention cylinder 1.

[0038] In a preferred embodiment, a rotary motor 12 is installed inside the control box 2. The output end of the rotary motor 12 is connected to a rotating shaft 14, and a rotating gear 15 is fixedly connected to the bottom of the rotating shaft 14. The rotating gear 15 meshes with a positioning gear 16. To control the rotary motor 12, an operation screen 4 is installed on the upper surface of the control box 2, and operation handles 3 are symmetrically installed at both ends of the control box 2, thereby effectively controlling the entire pest control device. When it is necessary to drive the pest control cylinder 1 to rotate, the rotary motor 12 can be started via the operation screen 4.

[0039] In addition, to ensure greater stability of the positioning gear 16 when driving the prevention and control cylinder 1 to rotate, the positioning part in this embodiment includes positioning strips 21 symmetrically fixed to the outside of each positioning shaft 6. The positioning strips 21 slide in conjunction with the positioning grooves 27 provided inside the positioning cylinder 5. A positioning spring 26 is also installed between the bottom of the positioning shaft 6 and the inside of the positioning cylinder 5. By sliding the positioning strips 21 up and down inside the positioning cylinder 5, and with the cooperation of the positioning springs 26, the prevention and control cylinder 1 will not interfere with each other during its up and down movement and horizontal rotation, further ensuring the reliability of the prevention and control device.

[0040] The prevention and control device also includes a penetration mechanism for changing the vertical position of the prevention and control cylinder 1. The penetration mechanism includes a penetration motor 13 installed inside the operation box 2. The output end of the penetration motor 13 is connected to a penetration shaft 18. The bottom of the penetration shaft 18 passes through the positioning block 17 and is fitted with a telescopic cylinder 22 through a threaded sleeve 19. The bottom of the telescopic cylinder 22 is connected to the upper end of the prevention and control cylinder 1 through a rotating sealing assembly. The penetration mechanism also includes a limiting assembly.

[0041] The limiting component includes limiting plates 23 symmetrically fixed on both sides of the upper end of the telescopic cylinder 22. Limiting posts 20 are slidably installed inside the limiting plates 23. Limiting blocks 24 are fixedly installed at the bottom of the limiting posts 20. Limiting springs 25 are sleeved on the outside of the limiting posts 20 between the limiting blocks 24 and the limiting plates 23. The top of the limiting posts 20 is symmetrically fixed at the lower end face of the positioning gear 16.

[0042] The working principle of the above-mentioned deep-penetrating mechanism is as follows: the deep-penetrating motor 13 is driven by the operation panel 4, which then drives the deep-penetrating shaft 18 to rotate. Then, with the cooperation of the threaded sleeve 19, the telescopic cylinder 22 extends and retracts back and forth with the cooperation of the limiting component, thereby realizing the continuous deep penetration of the prevention and control cylinder 1 at the water leakage position.

[0043] Furthermore, to ensure that the rotation of the prevention and control cylinder 1 does not affect the introduction of slurry or the discharge of leaking water, this rotating sealing assembly includes a fixing ring 8 fixed to the top of the prevention and control cylinder 1 and communicating with the interior of the cylinder 1. A diversion ring 7 is rotatably installed at the upper edge of the fixing ring 8, and the diversion ring 7 is fixed to the bottom of the telescopic cylinder 22. With the above arrangement, the slurry inlet mechanism will not interfere with the vertical position and rotational movement of the prevention and control cylinder 1 during actual operation.

[0044] In one embodiment, the slurry inlet mechanism includes a slurry pipe 9 connected to the slurry ring 7, and a switching valve 10 connected to the end of the slurry pipe 9. One end of the switching valve 10 is connected to the slurry inlet 28, and the other end is connected to the slurry outlet 11.

[0045] In another embodiment, the slag discharge mechanism includes a slag discharge shaft 31 that is rotatably mounted along the axis at the edge of the inner wall of the prevention cylinder 1. The slag discharge shaft 31 is horizontally mounted with a number of cutters 32 equal to the number of cutters 30 along its axial direction. The slag discharge mechanism also includes a drive assembly.

[0046] The drive assembly includes drive plates 34 symmetrically fixedly installed on the upper end of the prevention and control cylinder 1. Drive shafts 35 are rotatably installed between the drive plates 34. The drive shafts 35 are provided with worm gears 36. The outer side of the worm gears 36 is engaged with a worm wheel 33 fixed to the top of the slag discharge shaft 31. One of the drive plates 34 is also equipped with a drive motor 37. The output end of the drive motor 37 is connected to the drive shaft 35.

[0047] With the above setup, in order to effectively remove these soil layers and ensure the injection of subsequent sealing grout, after the prevention and control cylinder 1 reaches the seepage location and excavates the corresponding soil layer, the operator can use the control panel 4 to make the drive motor 37 drive the drive shaft 35 to rotate. Then, under the action of the worm gear 36, the worm wheel 33 drives the slag discharge shaft 31 to rotate at a certain angle. After that, multiple cutters 32 are inserted into the cutting groove 30 to horizontally cut off the soil layer, thereby facilitating the rapid removal of the internal soil layer. The whole operation process is quick and convenient and is worth promoting.

[0048] Example 2: In another embodiment of the present invention, a method for preventing water leakage in a subway station in a water-rich stratum includes the following steps:

[0049] S1. After aligning the prevention cylinder 1 with the leakage location, start the rotary motor 12 to drive the prevention cylinder 1 to rotate. During this process, the prevention cylinder 1 is continuously pushed deeper into the leakage location through the infiltration mechanism.

[0050] S2. Reverse start of rotary motor 12, and with the cooperation of the deep-entry mechanism, the prevention and control cylinder 1 is pulled out. Then, under the action of the slag discharge mechanism, the columnar soil block inside the prevention and control cylinder 1 is continuously cut into small round blocks.

[0051] S3. Insert the prevention and control cylinder 1 into the bottom of the leakage location again, and use the drainage and grouting mechanism to completely draw out the leakage water inside.

[0052] S4. After the water inside the leaking area is drained, the grout is injected into the area again using the grouting mechanism to finally seal and plug the leak.

[0053] In summary: When preventing leakage, the prevention cylinder 1 is first placed against the corresponding surface. Then, the rotary motor 12 is started via the control panel 4, causing the prevention cylinder 1 to rotate synchronously. Simultaneously, the control handle 3 is used to continuously press the prevention cylinder 1 and start the penetration motor 13. Under the action of the penetration mechanism, the prevention cylinder 1 is continuously penetrated to the leakage point. During this process, the drainage and slurry feeding mechanism continuously draws out the leaking water inside and pulls it outward, simultaneously bringing out the soil layer inside the leakage point. Then, under the action of the slag discharge mechanism, the soil layer is discharged. Afterward, the prevention cylinder 1 is penetrated to the leakage point again, and the previously prepared sealing slurry is introduced into the above position using the drainage and slurry feeding mechanism, ultimately ensuring the effective prevention of leakage. During the operation of the drainage and feeding mechanism, the working state of the drainage pipe 9 is changed by controlling the switching valve 10.

[0054] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for preventing water leakage in subway stations in water-rich strata, comprising an operation box (2), characterized in that, The operation box (2) has a positioning block (17) rotatably mounted on the bottom side inside. A positioning gear (16) is fixedly mounted on the bottom of the positioning block (17). A positioning shaft (6) is symmetrically mounted on the lower end of the positioning gear (16). A positioning cylinder (5) is mounted on the positioning shaft (6) through the positioning part. A prevention cylinder (1) is fixedly mounted on the bottom of the positioning cylinder (5). A prevention cavity (29) is installed inside the prevention cylinder (1) along its axial direction. Multiple grooves (30) are provided on the side wall of the prevention cavity (29) along its axial direction. A sealing ring (38) is installed at the bottom of the prevention cylinder (1) and is connected to the prevention cavity (29). A slag discharge mechanism is also provided inside the prevention cylinder (1). A slurry inlet mechanism is provided at the upper end of the prevention cylinder (1). It also includes a deep-entry mechanism for changing the vertical position of the prevention cylinder (1). The slurry feeding mechanism includes a slurry pipe (9) connected to the slurry ring (7), and a switching valve (10) connected to the end of the slurry pipe (9). One end of the switching valve (10) is connected to the slurry inlet (28), and the other end is connected to the slurry outlet (11). The slag discharge mechanism includes a slag discharge shaft (31) that is rotatably installed along the axis at the edge of the inner wall of the prevention cylinder (1). The slag discharge shaft (31) is horizontally mounted with a number of cutters (32) equal to the number of cutters (30) along its axial direction. The slag discharge mechanism also includes a drive assembly.

2. The water leakage prevention device for subway stations in water-rich strata according to claim 1, characterized in that, The operation box (2) is equipped with a rotary motor (12), the output end of which is connected to a rotary shaft (14), and a rotary gear (15) is fixedly connected to the bottom of the rotary shaft (14). The rotary gear (15) meshes with the positioning gear (16).

3. The water leakage prevention device for subway stations in water-rich strata according to claim 1, characterized in that, The positioning part includes a positioning strip (21) symmetrically fixed on the outside of each positioning shaft (6). The positioning strip (21) slides with the positioning groove (27) set inside the positioning cylinder (5). A positioning spring (26) is also installed between the bottom of the positioning shaft (6) and the inside of the positioning cylinder (5).

4. The water leakage prevention device for subway stations in water-rich strata according to claim 1, characterized in that, The deep-penetrating mechanism includes a deep-penetrating motor (13) installed inside the operating box (2). The output end of the deep-penetrating motor (13) is connected to a deep-penetrating shaft (18). The bottom of the deep-penetrating shaft (18) passes through a positioning block (17) and is fitted with a telescopic cylinder (22) through a threaded sleeve (19). The bottom of the telescopic cylinder (22) is connected to the upper end of the prevention cylinder (1) through a rotating sealing assembly. The deep-penetrating mechanism also includes a limiting assembly.

5. A water leakage prevention device for subway stations in water-rich strata according to claim 4, characterized in that, The limiting assembly includes limiting plates (23) symmetrically fixed on both sides of the upper end of the telescopic cylinder (22). A limiting post (20) is slidably installed inside the limiting plate (23). A limiting block (24) is fixedly installed at the bottom of the limiting post (20). A limiting spring (25) is sleeved on the outside of the limiting post (20) between the limiting block (24) and the limiting plate (23). The top of the limiting post (20) is symmetrically fixed at the lower end face of the positioning gear (16).

6. A water leakage prevention device for subway stations in water-rich strata according to claim 5, characterized in that, The rotating sealing assembly includes a fixed ring (8) fixed to the top of the prevention and control cylinder (1) and communicating with the inside of the prevention and control cylinder (1). A drainage ring (7) is rotatably installed at the upper edge of the fixed ring (8), and the drainage ring (7) is fixed to the bottom of the telescopic cylinder (22).

7. A water leakage prevention device for subway stations in water-rich strata according to claim 1, characterized in that, The drive assembly includes drive plates (34) symmetrically fixedly installed on the upper end of the prevention cylinder (1), drive shafts (35) rotatably installed between the drive plates (34), worm gears (36) are provided on the drive shafts (35), and worm wheels (33) fixed on the top of the slag discharge shaft (31) mesh on the outer side of the worm gears (36). A drive motor (37) is also installed on one of the drive plates (34), and the output end of the drive motor (37) is connected to the drive shaft (35).

8. A method for preventing water leakage in subway stations in water-rich strata as described in claim 2, characterized in that, Includes the following steps: S1. After aligning the prevention cylinder (1) with the leakage location, start the rotary motor (12) to drive the prevention cylinder (1) to rotate. During this process, the prevention cylinder (1) is continuously pushed deeper into the leakage location through the infiltration mechanism. S2, reverse start the rotary motor (12), and with the cooperation of the deep-entry mechanism, the prevention cylinder (1) is pulled out. Then, under the action of the slag discharge mechanism, the columnar soil block inside the prevention cylinder (1) is continuously cut into small round blocks. S3. Insert the prevention and control cylinder (1) into the bottom of the leakage location again, and use the drainage and grouting mechanism to completely draw out the leakage water inside; S4. After the water inside the leaking area is drained, the grout is injected into the area again using the grouting mechanism to finally seal and plug the leak.

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