Subway track settlement monitoring equipment

Abstract

The invention relates to the technical field of track monitoring, in particular to subway track settlement monitoring equipment which comprises a base, a plurality of foot screws are arranged at the top of the base, a level gauge is connected to the ends, away from the base, of the foot screws, and a mounting pipe is fixedly mounted on the side, away from the foot screws, of the base. The end, away from the base, of the installation pipe is fixedly connected with an insertion column. A plurality of diffusion holes are formed in the outer wall of the mounting pipe, and are uniformly divided into a plurality of groups; by arranging the flow dispersing holes, after soil backfilling is completed, the spraying assembly is controlled to quantitatively spray liquid into the positioning frame, along with adding of water, friction force between soil particles is reduced, the particles are closer to one another more easily and are arranged more tightly, the risk that the particles sink or incline is reduced, and the stability of the level gauge is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of track monitoring technology, and in particular to a subway track settlement monitoring device. Background Technology

[0002] Subway track settlement monitoring is a crucial aspect of ensuring the safe operation and maintenance of subway systems. Because subway lines are typically underground, they are constantly affected by factors such as geological conditions, construction activities, and changes in groundwater levels. This can lead to track settlement or deformation, which not only affects the smoothness of train operation but may also pose safety hazards.

[0003] Currently, settlement monitoring mainly relies on manual measurement using levels or total stations to ensure the safety and stability of the track. However, in complex field environments, traditional tripod installation methods require frequent adjustments to the height and position of the outriggers. This not only increases the difficulty and time cost of operation but may also lead to equipment instability, thereby affecting the accuracy and reliability of measurements. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a subway track settlement monitoring device.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a subway track settlement monitoring device, including a base, a plurality of leveling screws are provided on the top of the base, a level is connected to the end of the leveling screws away from the base, an installation pipe is fixedly installed on the side of the base away from the leveling screws, and a plug is fixedly connected to the end of the installation pipe away from the base.

[0006] The outer wall of the mounting tube is provided with multiple diffuser holes, which are divided into several groups. The diffuser holes in the same group are evenly distributed around the axis of the mounting tube. A positioning frame is fixedly installed inside all the diffuser holes, and a slot adapted to the diffuser hole is provided on the side wall of the positioning frame.

[0007] A spraying assembly is provided on the side of the base away from the foot screw. The spraying assembly is located inside the mounting tube. After the insertion post is installed, the spraying assembly is used to spray liquid evenly into the interior of each positioning frame in a metering manner, so that the liquid can penetrate into the backfill soil through the diffuser hole.

[0008] Preferably, the spraying assembly includes a water tank, which is fixedly connected to the base on the side away from the foot screw, and the water tank is located inside the mounting pipe. The outlet of the water tank is fixedly connected to a drain pipe, and the outer wall of the drain pipe is equipped with valves equal in number to the positioning frames. Each valve is fixedly connected to a drain pipe, and the drain pipe is connected to the positioning frame at the corresponding position.

[0009] Preferably, a permeation frame is fixedly connected to the side wall of the positioning frame, and an interception net is fixedly installed inside the permeation frame.

[0010] Preferably, two sliding rods are rotatably connected between the two inner sidewalls of the permeation frame. The two sliding rods are symmetrically arranged, and baffles are fixedly connected to the outer walls of the two sliding rods. The baffles are located on the side of the interception net away from the positioning frame.

[0011] Preferably, a sleeve is fixedly connected to the outer wall of each of the two slide rods, and a stop bar is fixedly connected to the side of each of the two sleeves near the baffle.

[0012] Preferably, an absorbent cotton is fixedly connected inside the positioning frame. The absorbent cotton is used to cover the slot opening. A squeezing component is provided between the absorbent cotton and the drain pipe. The squeezing component is used to push the liquid outward through the interception net after the absorbent cotton is saturated with liquid.

[0013] Preferably, the extrusion assembly includes a limiting frame and an electric telescopic rod. The limiting frame is slidably connected to the inside of the positioning frame. The top of the limiting frame has multiple slots. The fixing part of the electric telescopic rod is fixedly connected to the outer wall of the drain pipe. The telescopic end of the electric telescopic rod is fixedly connected to an extrusion box. A first elastic telescopic rod is fixedly installed between the extrusion box and the limiting frame.

[0014] Preferably, the squeezing box has a groove on the side away from the absorbent cotton, and a slide rail is fixedly connected inside the squeezing box. Two second elastic telescopic rods are slidably connected on the slide rail. A spring is fixedly connected between the fixed parts of the two second elastic telescopic rods. After the telescopic ends of the two second elastic telescopic rods pass through the groove, an L-shaped push plate is fixedly connected to each of them. The absorbent cotton is located between the two L-shaped push plates. A push rod is fixedly connected to the side wall of each of the two L-shaped push plates. Triangular blocks are fixedly connected to the two inner side walls of the limiting frame. The triangular blocks cooperate with the push rods.

[0015] Preferably, a water discharge tray is rotatably connected to the side of the extrusion box near the absorbent cotton. A first water discharge groove is fixedly connected to the water discharge tray. An installation groove is formed at the center of the side of the water discharge tray away from the absorbent cotton. A support rod is fixedly connected inside the installation groove. A rotating disk is rotatably connected to the end of the support rod away from the water discharge tray. A torsion spring is installed between the rotating disk and the water discharge tray. The torsion spring is sleeved on the outer wall of the support rod. A second water discharge groove is formed on the rotating disk. The rotating disk is fixedly connected to the slide rail. A guide plate is fixedly connected to the outer wall of the rotating disk. A push frame is fixedly connected to the fixing part of one of the second elastic telescopic rods. The push frame cooperates with the guide plate.

[0016] Preferably, a receiving plate is fixedly connected inside the extrusion box, and the receiving plate is inclined.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] Firstly, the invention utilizes a column design. Firstly, by inserting the column deep into the ground, it effectively resists external vibrations and wind, ensuring the equipment remains stable during measurement and preventing measurement errors caused by shaking, thus providing more robust support. Secondly, the column can adapt to various complex terrain conditions by adjusting its insertion depth and angle. After soil backfilling, the spraying assembly quantitatively sprays liquid into the positioning frame. With the addition of water, the friction between soil particles decreases, making them more likely to approach each other and arrange themselves more tightly. As the water evaporates, the gaps between soil particles decrease, making the soil denser, which helps reduce the risk of sinking or tilting, thus ensuring the stability of the level.

[0019] Second, this invention, through the setting of baffles, leaves a certain gap between the baffles and the interception net. The baffles initially block larger particles, and the interception net further blocks smaller particles. Through the synergistic cooperation between the two, it helps to prevent large soil particles from clogging the interception net. Furthermore, the setting of the baffle rod limits the rotation angle of the baffles, ensuring that the baffles will not come into contact with the interception net due to the action of soil particles, thereby helping to keep the water flow channel unobstructed at all times.

[0020] Third, this invention utilizes absorbent foam to block the trough opening, which helps to intercept smaller soil particles. Once saturated with water, the foam uses the impact force generated by compression to clean impurities from the trough opening and the interception net. Furthermore, because space is pre-reserved between the interception net and the baffle, and the soil particles accumulating on the side of the interception net are small in volume and quantity, this avoids the difficulty of flushing the interception net with water due to excessive soil particle accumulation. Additionally, during the water flow impact, it is easier to cause the baffle to flip outwards, and a certain space is maintained between the baffle and the interception net. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the monitoring device of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the present invention along the cross-section of the mounting pipe. Figure 1 .

[0023] Figure 3 This is a schematic diagram of the structure of the present invention along the cross-section of the mounting pipe. Figure 2 .

[0024] Figure 4 This is a schematic diagram of the structure of the present invention along a cross-section of the permeation frame.

[0025] Figure 5 For the present invention Figure 4 A magnified structural diagram at point A in the diagram.

[0026] Figure 6 This is a schematic diagram of the structure of the limiting frame connection of the present invention.

[0027] Figure 7 This is a schematic diagram of the structure of the present invention along the cross-section of the positioning frame. Figure 1 .

[0028] Figure 8 This is a schematic diagram of the structure of the present invention along the cross-section of the positioning frame. Figure 2 .

[0029] Figure 9 This is a schematic diagram of the extrusion box of the present invention.

[0030] Figure 10 This is a schematic diagram of the structure of the present invention along the cross-section of the extrusion box.

[0031] Figure 11 This is a schematic diagram of the structure of the present invention along the cross-section of the rotating disk.

[0032] In the diagram: 1. Base; 2. Foot screw; 3. Level; 4. Mounting pipe; 5. Insert post; 6. Diffuser hole; 7. Positioning frame; 8. Water tank; 9. Drain pipe; 10. Drainage pipe; 11. Infiltration frame; 12. Interception net; 13. Sliding rod; 14. Baffle; 15. Sleeve; 16. Stop bar; 17. Absorbent cotton; 18. Limiting frame; 19. Electric telescopic rod; 20. Hole groove; 21. Squeezing box; 22. First elastic telescopic rod; 23. Slide groove; 24. Slide rail; 25. Second elastic telescopic rod; 26. Spring; 27. L-shaped push plate; 28. Push rod; 29. ​​Triangular block; 30. Water discharge tray; 31. First water discharge trough; 32. Mounting groove; 33. Support rod; 34. Rotating disk; 35. Torsion spring; 36. Second water discharge trough; 37. Guide plate; 38. Push frame; 39. Receiving plate. Detailed Implementation

[0033] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0034] Application Scenarios: Currently, settlement monitoring mainly relies on manual measurement using levels or total stations to ensure the safety and stability of the track. However, in complex field environments, traditional tripod installation methods require frequent adjustments to the height and position of the outriggers. This not only increases the difficulty and time cost of operation but may also lead to equipment instability, thereby affecting the accuracy and reliability of measurements.

[0035] like Figures 1 to 11 The subway track settlement monitoring device shown includes a base 1, a plurality of foot screws 2 are provided on the top of the base 1, a level instrument 3 is connected to the end of the foot screws 2 away from the base 1, an installation pipe 4 is fixedly installed on the side of the base 1 away from the foot screws 2, and a plug 5 is fixedly connected to the end of the installation pipe 4 away from the base 1.

[0036] Multiple diffuser holes 6 are provided on the outer wall of the mounting tube 4. The multiple diffuser holes 6 are divided into several groups. The diffuser holes 6 in the same group are evenly distributed around the axis of the mounting tube 4. A positioning frame 7 is fixedly installed inside all the diffuser holes 6. A slot that matches the diffuser hole 6 is provided on the side wall of the positioning frame 7.

[0037] A spraying assembly is provided on the side of the base 1 away from the foot screw 2. The spraying assembly is located inside the installation pipe 4. After the insertion post 5 is installed, the spraying assembly is used to spray liquid evenly into the interior of each positioning frame 7 in a metered manner so that the liquid can penetrate into the backfill soil through the diffuser hole 6.

[0038] It should be understood that the operator digs an installation hole that matches the plug 5 at a pre-selected location, then places the plug and installation pipe 4 into the installation hole, and backfills the hole with pre-prepared soil. By replacing the tripod with the plug 5 for installation, on the one hand, the frequent adjustment of the height and position of the legs of the tripod is reduced, simplifying the installation process. On the other hand, on soft or unstable ground, the tripod may gradually sink, affecting the levelness of the equipment; while the plug 5 can be inserted to a deeper depth. Firstly, by going deep into the ground, the plug 5 can effectively resist external vibrations and wind, ensuring the stability of the equipment during measurement and avoiding measurement errors caused by shaking, providing more solid support. Secondly, the plug 5 can adapt to various complex terrain conditions, such as slopes, uneven ground, or soft soil, by using different insertion depths and angles. In these situations, the tripod often has difficulty finding a suitable support point and is prone to instability. In contrast, the tripod's legs rely solely on the contact area with the ground to maintain stability, making them susceptible to external factors such as wind and vibration.

[0039] After the soil backfilling is completed, liquid is sprayed quantitatively into the positioning frame 7 by controlling the spraying component. The liquid can be water. After the liquid enters the positioning frame 7, as the liquid continues to flow in, it will sequentially penetrate into different parts of the backfill soil through the slot and the diffuser hole 6. By setting multiple diffuser holes 6, it is beneficial to ensure that the liquid penetrates evenly into all parts of the backfill soil. When the particles in the soil, such as sand and mud, are moistened by water, the water will fill the gaps between the particles and reduce the presence of air. With the addition of water, the friction between soil particles decreases, and the particles are more likely to approach each other and arrange themselves more tightly. When the water evaporates, the gaps between soil particles decrease, and the soil becomes denser. The dense soil can better support the insertion column 5 and the installation pipe 4, which helps to reduce the risk of sinking or tilting, and helps to ensure the stability of the level 3. This helps to reduce the possibility of ground settlement during subsequent measurement and avoid measurement errors caused by uneven ground settlement.

[0040] For soils containing a certain proportion of clay, moisture can promote the bonding between clay particles. Clay particles expand when wet and shrink again after the water evaporates, forming a denser structure. Wet clay particles are more likely to bond together, forming a stronger whole and further improving the soil's bearing capacity. The increased bonding force between wet soil particles reduces the movement of loose particles under external vibration or pressure, ensuring that the insertion post 5 and the installation pipe 4 will not easily slide or tilt, thus helping to maintain the stability of the level 3.

[0041] In summary, different types of soil respond differently to water. For example, sandy soil drains easily but is not easy to compact, while clay soil compacts easily but drains poorly. By adding an appropriate amount of water, the physical properties of the soil can be adjusted according to its type, making it more suitable for fixing measurement points.

[0042] As a further embodiment of the present invention, the spraying assembly includes a water tank 8, which is fixedly connected to the side of the base 1 away from the foot screw 2, and the water tank 8 is located inside the mounting pipe 4. The outlet of the water tank 8 is fixedly connected to a drain pipe 9. The outer wall of the drain pipe 9 is equipped with valves equal in number to the positioning frame 7. Each valve is fixedly connected to a drain pipe 10, and the drain pipe 10 is connected to the positioning frame 7 at the corresponding position.

[0043] It should be understood that the water in the water tank 8 enters the interior of the drain pipe 9 through the outlet. By controlling the valve switch, the water can enter the interior of the positioning frame 7 through the diversion pipe 10, and then seep into the interior of the backfill soil through the slot and the diffuser hole 6.

[0044] As a further embodiment of the present invention, a permeation frame 11 is fixedly connected to the side wall of the positioning frame 7, and an interception net 12 is fixedly installed inside the permeation frame 11.

[0045] It should be understood that the above example illustrates how water is permeated into the backfill soil through the diffuser hole 6, making it easier for soil particles to approach each other and arrange themselves more tightly to stably support the level instrument 3. However, in practical applications, on the one hand, backfill soil may enter the interior of the installation pipe 4 through the diffuser hole 6, causing backfill soil loss. On the other hand, soil may clog the trench opening, making it difficult for water to permeate. Therefore, by adding a permeation frame 11 and an interception net 12 inside the permeation frame 11 to intercept soil particles, it is beneficial to prevent soil particles from clogging the trench opening through the diffuser hole 6. By intercepting soil particles outside the interception net 12, it is beneficial for water to continue to permeate. On the other hand, the setting of the interception net 12 helps to prevent soil from entering the interior of the installation pipe 4, which helps to reduce water loss.

[0046] As a further embodiment of the present invention, two slide rods 13 are rotatably connected between the two inner sidewalls of the permeation frame 11. The two slide rods 13 are symmetrically arranged, and baffles 14 are fixedly connected to the outer walls of the two slide rods 13. The baffles 14 are located on the side of the interception net 12 away from the positioning frame 7.

[0047] As a further embodiment of the present invention, a sleeve plate 15 is fixedly connected to the outer wall of each of the two slide rods 13, and a stop rod 16 is fixedly connected to the side of each sleeve plate 15 near the baffle 14.

[0048] It should be understood that, in order to prevent soil particles from clogging the interception net 12, a baffle 14 is installed on one side of the interception net 12, leaving a certain gap between the baffle 14 and the interception net 12. The baffle 14 initially blocks larger particles, and the interception net 12 further blocks smaller particles. Through the synergistic cooperation between the two, it is beneficial to prevent large soil particles from clogging the interception net 12. Furthermore, the baffle rod 16 limits the rotation angle of the baffle 14, ensuring that the baffle 14 will not come into contact with the interception net 12 due to the action of soil particles, thereby helping to keep the water flow channel unobstructed at all times.

[0049] It should be noted that the water flow channel refers to the channel through which water is discharged outwards through the trough opening and the diffuser hole 6.

[0050] As a further embodiment of the present invention, a water-absorbing cotton 17 is fixedly connected inside the positioning frame 7. The water-absorbing cotton 17 is used to cover the groove opening. A squeezing component is provided between the water-absorbing cotton 17 and the drain pipe 9. The squeezing component is used to push the liquid outward through the interception net 12 after the water-absorbing cotton 17 is saturated with liquid.

[0051] It should be understood that the above embodiments illustrate the synergistic effect of baffle 14 and interception net 12 in maintaining the unobstructed water flow channel. However, as small soil particles accumulate, some even smaller soil particles may still flow through the interception net 12 into the installation box, while others will accumulate on the interception net 12. Prolonged accumulation will affect the flowability of the interception net 12. Therefore, by setting up absorbent foam 17 to block the opening, smaller soil particles are intercepted. Furthermore, after the absorbent foam 17 becomes saturated with water, the squeezing component is controlled to squeeze the absorbent foam 17, thereby utilizing the force generated by the squeezed water flow to squeeze the opening... Impurities on the interception net 12 are cleaned; and because a space is reserved between the interception net 12 and the baffle 14 in advance, and the soil particles piled on the side of the interception net 12 are small in volume and few in number, when the water inside the absorbent cotton 17 is squeezed out, on the one hand, it helps to avoid the difficulty of the squeezed water flow washing the interception net 12 due to excessive soil particle accumulation; on the other hand, when the water flow in the absorbent cotton 17 is squeezed out, it can cause the baffle 14 to flip outward, thereby helping to prevent the baffle 14 from being squeezed by the baffle rod 16 and causing damage to the baffle rod 16, and can maintain a certain space between the baffle 14 and the interception net 12 at all times.

[0052] As a further embodiment of the present invention, the extrusion assembly includes a limiting frame 18 and an electric telescopic rod 19. The limiting frame 18 is slidably connected to the inside of the positioning frame 7. The top of the limiting frame 18 is provided with a plurality of holes and slots 20. The fixing part of the electric telescopic rod 19 is fixedly connected to the outer wall of the drain pipe 9. The telescopic end of the electric telescopic rod 19 is fixedly connected to the extrusion box 21. A first elastic telescopic rod 22 is fixedly installed between the extrusion box 21 and the limiting frame 18.

[0053] It should be understood that when the electric telescopic rod 19 is activated and extended, it pushes the squeezing box 21 toward the absorbent cotton 17. During this process, the squeezing box 21 moves the limiting frame 18 toward the positioning frame 7 via the first elastic telescopic rod 22. The limiting frame 18, during its movement, covers the absorbent cotton 17, preventing moisture loss. As the limiting frame 18 contacts the inner wall of the positioning frame 7, it stops moving. At this point, the squeezing box 21 continues to move toward the absorbent cotton 17. During this movement, the squeezing box 21 compresses the space between the first elastic telescopic rod 22 and the limiting frame 18. The relative displacement is adapted to the movement trajectory of the absorbent cotton 17, which facilitates the squeezing of the absorbent cotton 17 by the squeezing box 21. At this time, due to the presence of the limiting frame 18, the squeezing box 21 can limit the spray direction of the absorbent cotton 17 to a certain extent during the squeezing process. On the one hand, it helps to reduce the water loss caused by the absorbent cotton 17 spraying to both sides when squeezed by the squeezing box 21. On the other hand, by limiting the spray path of the absorbent cotton 17, it helps to make the flow path face the trough opening, thereby enhancing the impact force of the water flow and facilitating the rinsing and cleaning of the trough opening and the intercepting net 12.

[0054] As a further embodiment of the present invention, a groove 23 is provided on the side of the squeezing box 21 away from the absorbent cotton 17. A slide rail 24 is fixedly connected inside the squeezing box 21. Two second elastic telescopic rods 25 are slidably connected on the slide rail 24. A spring 26 is fixedly connected between the fixed parts of the two second elastic telescopic rods 25. After the telescopic ends of the two second elastic telescopic rods 25 pass through the groove 23, an L-shaped push plate 27 is fixedly connected to each of them. The absorbent cotton 17 is located between the two L-shaped push plates 27. A push rod 28 is fixedly connected to the side wall of each of the two L-shaped push plates 27. A triangular block 29 is fixedly connected to the two inner side walls of the limiting frame 18. The triangular block 29 cooperates with the push rod 28.

[0055] It should be understood that, as indicated in the above embodiments, the spraying path of the absorbent cotton 17 is restricted by the limiting frame 18 in conjunction with the squeezing box 21, which is beneficial to enhance the flushing force of the water flow to clean the trough and the intercepting net 12. However, in practical applications, in order to store sufficient water, the volume of the absorbent cotton 17 needs to reach a specified range. At this time, if the volume of the sponge is too large, even if the limiting frame 18 intercepts other water outlets of the absorbent cotton, the excessive volume may cause uneven distribution of the squeezing force. Therefore, the flushing force of the squeezed water flow may be insufficient, which may have a certain impact on the flushing and cleaning. When the inner wall contact is no longer moving, as the extrusion box 21 continues to move, the extrusion box 21 will drive the L-shaped push plate 27 to move via the second elastic telescopic rod 25. The L-shaped push plate 27 will drive the push rod 28 to move. During the movement of the push rod 28, it will come into contact with the triangular block 29. Guided by the inclined surface of the triangular block 29, it will push the two L-shaped push plates 27 closer to each other. During the process of the two L-shaped push plates 27 getting closer to each other, it will drive the two second elastic telescopic rods 25 closer to each other and compress the spring 26 to make way. Because the absorbent cotton 17 is located between the two L-shaped push plates 27, the absorbent cotton 17 will be squeezed during the process of the two L-shaped push plates 27 getting closer to each other. The fixing method involves fixing the central part, while the two sides can contract during compression. The absorbent cotton 17 avoids water flow channels such as grooves during fixing to prevent the fixing from affecting water flow. When the absorbent cotton 17 is compressed and moves towards the center, water is pushed from the edge area to the center. As the space in the central area gradually decreases, water is forced to drain through predetermined channels, forming a concentrated drainage path. Firstly, compared to uniform compression, moving towards the center can concentrate water in a smaller area more quickly, thus accelerating water drainage. This is because the water pressure is greater in the central area, pushing it out faster. Secondly, in uniform compression... In some cases, water may stagnate in certain areas, leading to uneven drainage. By moving towards the center, water can be distributed more evenly throughout the sponge, preventing water accumulation in localized areas. Thirdly, when the absorbent sponge 17 is squeezed and moved towards the center, water is concentrated in a smaller area, creating higher local pressure. Since the size of the drain outlet remains unchanged, the water is forced to flow through the same outlet area, but the pressure is greater, thus increasing the water flow speed. This creates higher speed and impact at the trough and other locations, which is beneficial for rinsing and cleaning the trough, interceptor net 12, etc., and helps to avoid situations where insufficient rinsing force affects the rinsing effect.

[0056] As a further embodiment of the present invention, a water discharge tray 30 is rotatably connected to the side of the squeezing box 21 near the absorbent cotton 17. A first water discharge groove 31 is fixedly connected to the water discharge tray 30. An installation groove 32 is provided at the center of the side of the water discharge tray 30 away from the absorbent cotton 17. A support rod 33 is fixedly connected inside the installation groove 32. A rotating disk 34 is rotatably connected to the end of the support rod 33 away from the water discharge tray 30. A torsion spring 35 is installed between the rotating disk 34 and the water discharge tray 30. The torsion spring 35 is sleeved on the outer wall of the support rod 33. A second water discharge groove 36 is provided on the rotating disk 34. The rotating disk 34 is fixedly connected to the slide rail 24. A guide plate 37 is fixedly connected to the outer wall of the rotating disk 34. A pusher 38 is fixedly connected to the fixing part of one of the second elastic telescopic rods 25. The pusher 38 cooperates with the guide plate 37.

[0057] It should be understood that as the two second elastic telescopic rods 25 approach each other, the second elastic telescopic rods 25 will drive the pusher 38 to move. In the initial state, the pusher 38 is in contact with the guide plate 37, and the guide plate 37 is provided with a guide slope. During the movement of the pusher 38, it will cooperate with the guide slope to push the guide plate 37 to rotate at a certain angle. The guide plate 37 drives the water discharge tray 30 to rotate, so that the first water discharge groove 31 on the water discharge tray 30 is connected with the second water discharge groove 36 opened on the rotating plate 34. At this time, the water pre-placed in the squeezing box 21 will flow to the absorbent cotton 17 and be discharged, thereby replenishing the amount of water that has flowed out through the absorbent cotton 17, which helps to ensure that the rinsing force is stable within the set range.

[0058] As a further embodiment of the present invention, a receiving plate 39 is fixedly connected inside the extrusion box 21, and the receiving plate 39 is inclined.

[0059] It should be understood that the arrangement of the receiving plate 39 facilitates better drainage of water from the first drain trough 31 and the second drain trough 36.

[0060] Working principle of this invention:

[0061] The operator digs an installation hole at a pre-selected location that matches the insertion post 5, then places the insertion rod and installation pipe 4 into the installation hole, and backfills the hole with pre-prepared soil. By replacing the tripod with the insertion post 5, the installation process is simplified by reducing the need for frequent adjustments to the height and position of the tripod legs. On the other hand, on soft or unstable ground, the tripod may gradually sink, affecting the levelness of the equipment. The insertion post 5, however, can be inserted to a greater depth. Firstly, by extending deep into the ground, the insertion post 5 can effectively resist external vibrations and wind, ensuring the stability of the equipment during measurement and avoiding measurement errors caused by shaking, providing more robust support. Secondly, the insertion post 5 can adapt to various complex terrain conditions, such as slopes, uneven ground, or soft soil, by using different insertion depths and angles. In these situations, the tripod often struggles to find a suitable support point and is prone to instability. In contrast, the tripod legs rely solely on the contact area with the ground to maintain stability, making them susceptible to external factors such as wind and vibration.

[0062] After the soil backfilling is completed, liquid is sprayed quantitatively into the positioning frame 7 by controlling the spraying component. The liquid can be water. After the liquid enters the positioning frame 7, it will seep into different parts of the backfill soil through the slot and the diffuser hole 6 as it flows in. By setting multiple diffuser holes 6, it is easier to ensure that the water penetrates into all parts of the backfill soil evenly. When the soil particles such as sand and mud are moistened by water, the water will fill the gaps between the particles and reduce the presence of air. With the addition of water, the friction between soil particles decreases, and the particles are more likely to approach each other and arrange themselves more tightly. When the water evaporates, the gaps between soil particles decrease, and the soil becomes denser. The dense soil can better support the insertion column 5 and the installation pipe 4, which helps to reduce the risk of sinking or tilting, and helps to ensure the stability of the level 3. This helps to reduce the possibility of ground settlement during subsequent measurement and avoid measurement errors caused by uneven ground settlement.

[0063] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A subway track settlement monitoring device, comprising a base (1), the top of the base (1) is provided with a plurality of foot screws (2), the end of the foot screw (2) away from the base (1) is connected with a level (3), characterized in that: The installation pipe (4) is fixedly connected with a plug post (5) at one end away from the base (1). A plurality of flow holes (6) are formed on the outer wall of the installation pipe (4), and the flow holes (6) are divided into groups, the flow holes (6) in the same group are evenly distributed along the circumference with the axis of the installation pipe (4) as the center, and the inner portions of all the flow holes (6) are fixedly installed with positioning frames (7), and the side walls of the positioning frames (7) are formed with notches matched with the flow holes (6). The base (1) is provided with a spraying assembly on the side away from the foot screw (2), and the spraying assembly is located in the inner portion of the installation pipe (4) and is used for uniformly spraying liquid into the inner portions of the positioning frames (7) after the installation of the plug post (5) is completed, so that the liquid penetrates into the backfill soil through the flow holes (6).

2. The subway track settlement monitoring device according to claim 1, characterized in that: The spraying assembly comprises a water tank (8) fixedly connected to the side of the base (1) away from the foot screw (2) and located in the inner portion of the installation pipe (4), and a water outlet of the water tank (8) is fixedly communicated with a drain pipe (9), and the outer wall of the drain pipe (9) is installed with valves equal in number to the positioning frames (7), each valve is fixedly communicated with a drainage pipe (10), and the drainage pipe (10) is connected with the positioning frame (7) at the corresponding position.

3. The subway track settlement monitoring device according to claim 2, characterized in that: The side wall of the positioning frame (7) is fixedly connected with a penetration frame (11), and the inner portion of the penetration frame (11) is fixedly installed with an interception net (12).

4. The subway track settlement monitoring device according to claim 3, characterized in that: Two slide rods (13) are rotatably connected between the two inner side walls of the penetration frame (11), the two slide rods (13) are symmetrically arranged, the outer walls of the two slide rods (13) are fixedly connected with baffles (14), and the baffles (14) are located on the side of the interception net (12) away from the positioning frame (7).

5. The subway track settlement monitoring device according to claim 4, characterized in that: The outer walls of the two slide rods (13) are fixedly connected with sleeve discs (15), and the side of each sleeve disc (15) close to the baffle (14) is fixedly connected with a blocking rod (16).

6. The subway track settlement monitoring device according to claim 5, characterized in that: The inner portion of the positioning frame (7) is fixedly connected with a water-absorbing sponge (17), the water-absorbing sponge (17) is used for shielding the notches, and an extrusion assembly is arranged between the water-absorbing sponge (17) and the drain pipe (9), and the extrusion assembly is used for pushing the liquid to be discharged outward through the interception net (12) after the water-absorbing sponge (17) is saturated with liquid.

7. The subway track settlement monitoring device according to claim 6, characterized in that: The extrusion assembly comprises a limiting frame (18) and an electric telescopic rod (19), the limiting frame (18) is slidingly connected in the inner portion of the positioning frame (7), a plurality of hole grooves (20) are formed in the top of the limiting frame (18), the fixed portion of the electric telescopic rod (19) is fixedly connected to the outer wall of the drain pipe (9), the telescopic end of the electric telescopic rod (19) is fixedly connected with an extrusion box (21), and a first elastic telescopic rod (22) is fixedly installed between the extrusion box (21) and the limiting frame (18).

8. The subway track settlement monitoring device according to claim 7, characterized in that: The side of the extrusion box (21) away from the water absorbing cotton (17) is provided with a chute (23), the inside of the extrusion box (21) is fixedly connected with a slide rail (24), the slide rail (24) is slidably connected with two second elastic telescopic rods (25), the fixed portions of the two second elastic telescopic rods (25) are fixedly connected with a spring (26), the telescopic ends of the two second elastic telescopic rods (25) are fixedly connected with L-shaped push plates (27) after penetrating through the chute (23), the water absorbing cotton (17) is located between the two L-shaped push plates (27), the side walls of the two L-shaped push plates (27) are fixedly connected with push rods (28), the two inner side walls of the limiting frame (18) are fixedly connected with triangular blocks (29), and the triangular blocks (29) are matched with the push rods (28).

9. The subway track settlement monitoring device according to claim 8, characterized in that: The side of the extrusion box (21) close to the water absorbing cotton (17) is rotatably connected with a water discharge disc (30), the water discharge disc (30) is fixedly connected with a first water discharge groove (31), the center of the side of the water discharge disc (30) away from the water absorbing cotton (17) is provided with a mounting groove (32), the inside of the mounting groove (32) is fixedly connected with a supporting rod (33), one end of the supporting rod (33) away from the water discharge disc (30) is rotatably connected with a rotating disc (34), a torsional spring (35) is installed between the rotating disc (34) and the water discharge disc (30), the torsional spring (35) is sleeved on the outer wall of the supporting rod (33), the rotating disc (34) is provided with a second water discharge groove (36), the rotating disc (34) is fixedly connected with the slide rail (24), the outer wall of the rotating disc (34) is fixedly connected with a guide plate (37), the fixed portion of one of the second elastic telescopic rods (25) is fixedly connected with a push frame (38), and the push frame (38) is matched with the guide plate (37).

10. The subway track settlement monitoring device according to claim 7, characterized in that: The inside of the extrusion box (21) is fixedly connected with a receiving plate (39), and the receiving plate (39) is inclinedly arranged.

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