Roadbed settlement monitoring device

Abstract

The utility model discloses a roadbed settlement monitoring device, which belongs to the technical field of earth surface monitoring and comprises a mounting column and a fixed barrel positioned below the mounting column, a transparent tube is spirally wound on the mounting column, one end of the transparent tube is communicated with the fixed barrel, the other end of the transparent tube is open, and the transparent tube is arranged in the fixed barrel. A movable plate capable of sliding in the radial direction of the fixed barrel is arranged in the fixed barrel, and colored liquid is arranged in the transparent pipe. According to the scheme, the transparent pipe is spirally arranged, so that the length of the spiral pipe is increased, the ground subsidence condition can be detected in a large range, the volume change between the interior of the fixed barrel and the movable plate is converted into the volume change of liquid in the transparent pipe, and the ground subsidence condition can be directly reflected through colored liquid; wherein the size of the movable plate or the size of the fixed barrel is much larger than the radial size of the transparent tube, slight displacement of the movable plate can be reflected by the transparent tube, and the accuracy of road surface monitoring is greatly improved.

Description

Technical Field

[0001] The utility model relates to a ground surface monitoring device, more specifically, it relates to a roadbed settlement monitoring device. Background Art

[0002] Existing road surface settlement devices generally place a scale and a measuring component on the roadbed. When the roadbed settles, the scale moves up and down with the roadbed and the measuring component does not move, or the measuring component moves up and down with the roadbed and the scale does not move, and the measuring component and the scale are displaced. The settlement of the roadbed is judged by the reading on the scale. However, the accuracy of the roadbed settlement is limited by the graduation value of the scale. It is difficult to observe a small settlement change of the roadbed, and the accuracy is insufficient.

[0003] For example: Chinese patent announcement number CN213455442U, announcement date June 15, 2021, the name of the utility model is a scaffold frame settlement data monitoring device, the application discloses a road settlement detection device, including a movable part, a fixed part and an elastic control part, the movable part is fixed to the scaffolding pole, and settles with the scaffolding pole, and also includes a vertically arranged cylinder and a glass tube; the fixed part includes a fixed plate, a lifting cylinder and a lifting plate arranged in sequence from top to bottom, and the position of the fixed part remains unchanged; this scheme increases the height change and increases the accuracy of liquid discharge. However, the detection accuracy of this scheme is still not accurate enough, and the vertical glass tube still occupies a large space. Utility Model Content

[0004] The utility model overcomes the problems of low detection accuracy and poor intuitive effect of existing road surface settlement devices, and provides a roadbed settlement monitoring device. This solution can accurately measure the settlement of the road surface and reflect it intuitively.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a roadbed settlement monitoring device, including a mounting column and a fixed barrel located below the mounting column, a transparent tube is spirally wound on the mounting column, one end of the transparent tube is connected to the fixed barrel, and the other end of the transparent tube is open, and a movable plate that can slide radially along the fixed barrel is provided in the fixed barrel, and a colored liquid is provided in the transparent tube. In this solution, the transparent tube is spirally arranged to increase the length of the spiral tube, so that the ground settlement can be detected in a larger range, and the volume change between the fixed barrel and the movable plate is converted into the volume change of the liquid in the transparent tube, and the ground settlement can be directly reflected by the colored liquid; wherein, the size of the movable plate or the size of the fixed barrel is much larger than the radial size of the transparent tube, and a slight displacement of the movable plate can also be reflected in the transparent tube, which greatly improves the accuracy of road surface monitoring.

[0006] Preferably, a support mechanism is fixedly arranged at the bottom of the mounting column, and the support mechanism is also fixedly connected to the fixed barrel. The support mechanism is used to fix the mounting column, and also plays a role of fixing and limiting the fixed barrel, so as to prevent relative displacement between the fixed barrel and the mounting column, which would affect the detection results.

[0007] Preferably, the support mechanism comprises a support foot, the support foot comprises a fixed sleeve, and the fixed sleeve is internally threadedly connected with a rotating column. The support foot is the main support structure of the support mechanism, which can not only play a supporting role but also a regulating role; the fixed sleeve and the rotating column are rotated to adjust the height of the support foot as a whole.

[0008] Preferably, a rebound mechanism is provided at the bottom of the fixed barrel, and the rebound mechanism includes a support rod, one end of which is fixedly connected to the movable plate, and the other end of which is connected to a base. The rebound mechanism is mainly used for the up and down movement of the movable plate, and the movable plate is driven to move by the settlement of the roadbed. After the movable plate moves, the volume inside the fixed barrel above the movable plate will change, so that the colored liquid in the transparent tube will either rise or fall.

[0009] Preferably, the rebound mechanism further comprises a sliding rod, the sliding rod is slidably connected to the bottom of the fixed barrel, one end of the sliding rod is also fixedly connected to the base, and an elastic member is arranged outside the sliding rod and between the fixed barrel and the base. The sliding rod can guide and limit the sliding between the movable plate and the fixed barrel, ensuring that the movable plate and the fixed barrel can slide normally, and the elastic member can act on the bottom of the fixed barrel according to the settlement of the roadbed, so that the movable plate can slide inside the fixed barrel.

[0010] Preferably, the top of the fixed barrel is a conical structure with a small top and a large bottom. There is also colored liquid inside the fixed barrel above the movable plate, so the top of the fixed barrel is set to a conical structure with a small top and a large bottom to prevent bubbles from being retained inside the fixed barrel and affecting the liquid level change of the transparent tube.

[0011] Preferably, the outer surface of the mounting column and along the transparent tube are provided with scales, which can further indicate the degree of change of the liquid level, intuitively reflect the settlement of the roadbed, and facilitate recording.

[0012] Preferably, a protective plate is provided on the outer surface of the mounting column and located at the open end of the transparent tube, and the open end of the transparent tube is arranged inside the protective plate. The protective plate can protect the open end of the transparent tube and also shield the open end of the transparent tube to prevent debris from falling into the transparent tube, causing the liquid level to change or clogging the transparent tube.

[0013] Preferably, the mounting column is also provided with a level bubble, which can reflect the level of the monitoring device and the settlement of each position of the roadbed to a certain extent, and can determine whether the roadbed is tilted.

[0014] Preferably, a sealing structure is provided between the movable plate and the inner wall of the fixed barrel. A sealing connection is required between the movable plate and the fixed barrel to prevent the colored liquid in the fixed barrel from leaking and causing inaccurate detection results.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: (1) the transparent tube is arranged in a spiral manner, which increases the length of the transparent tube and improves the monitoring range; (2) since the transparent tube is much thinner than the fixed barrel, even if the movable plate moves slightly downward, the liquid in the transparent tube will drop significantly. By observing the position of the liquid inside the transparent tube, the extent of the roadbed sinking can be judged, thereby achieving the effect of increasing the monitoring accuracy; (3) a protective plate is provided at the air inlet at the upper end of the transparent tube to protect the air inlet and prevent the transparent tube from being blocked by dust, stones, etc. above, thereby achieving the effect of preventing the transparent tube from being blocked; (4) a sealing ring is provided on the outer side of the movable plate to seal the movable plate and the sealing ring, thereby achieving the effect of preventing liquid leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the transparent tube and the fixed barrel connected to each other in the utility model.

[0018] Figure 3 It is a cross-sectional view of the support foot of the utility model.

[0019] Figure 4 It is a cross-sectional view of the internal structure of the fixed barrel of the utility model.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the protective plate and the transparent tube in the utility model.

[0021] In the figure: 1. mounting column, 2. fixed barrel, 21. connecting hole, 3. transparent tube, 4. movable plate, 5. supporting mechanism, 51. supporting foot, 511. fixing sleeve, 512. rotating column, 5121. rotating handle, 513. fixed base, 52. horizontal bracket, 53. tilting bracket, 6. rebound mechanism, 61. supporting rod, 62. sliding rod, 621. limiting flat head, 63. elastic part, 64. base, 7. scale, 8. protective plate, 9. level bubble, 10. sealing ring. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Example 1: Figure 1 A roadbed settlement monitoring device shown in the figure includes a mounting column 1, a fixed barrel 2 and a supporting mechanism 5, wherein the mounting column 1 is a cylindrical structure, and the mounting column 1 is located at the top of the fixed barrel 2, wherein the mounting column 1 and the fixed barrel 2 are separated by a certain distance; and the supporting mechanism 5 simultaneously limits and fixes the mounting column 1 and the fixed barrel 2 to prevent relative displacement between the mounting column 1 and the fixed barrel 2.

[0024] Specifically, the supporting mechanism 5 includes supporting feet 51, horizontal brackets 52 and inclined brackets 53; there are three supporting feet 51, which are evenly distributed in a ring shape, and the angle between each supporting foot 51 is 120°. The fixed barrel 2 is located at the center of the three supporting feet 51. Three horizontal brackets 52 are connected between the fixed barrel 2 and the three supporting feet 51. The horizontal brackets 52 are straight rod structures, one end of the horizontal brackets 52 is fixedly connected to the top of the supporting feet 51, and the other end is fixedly connected to the outer wall of the fixed barrel 2. Then, an inclined bracket 53 is also arranged on each horizontal bracket 52. Each inclined bracket 53 is inclined toward the top center direction of the fixed barrel 2, and is fixedly connected to the bottom of the mounting column 1 above the fixed barrel 2. Through the arrangement of the horizontal brackets 52 and the inclined brackets 53, the stability and structural strength of the entire supporting mechanism 5 are greatly improved, and the installation between the fixed barrel 2 and the mounting column 1 is made more stable.

[0025] Combination Figure 2 and Figure 4As shown, the interior of the fixed barrel 2 is a hollow structure, and a connecting hole 21 is provided on the top of the fixed barrel 2. A transparent tube 3 is spirally wound on the outer surface of the cylindrical mounting column 1, and the bottom of the transparent tube 3 is connected to the connecting hole 21 on the top of the fixed barrel 2. The top of the transparent tube 3 is an open end connected to the atmosphere. A movable plate 4 is arranged inside the fixed barrel 2, and the movable plate 4 can slide inside the fixed barrel 2, and a rebound mechanism 6 is arranged at the bottom of the movable plate 4, and the rebound mechanism 6 includes a support rod 61 and six sliding rods 62, the top of the support rod 61 is fixedly connected to the bottom of the movable plate 4, the support rod 61 is located at the center of the bottom of the movable plate 4, that is, located at the center of the bottom of the fixed barrel 2, and a base 64 is also fixedly connected to the bottom of the support rod 61, and six sliding rods 62 are evenly arranged on the base 64 and around the support rod 61, the bottom of the sliding rod 62 is fixedly connected to the base 64, and a limiting flat head 621 is arranged on the top, the top of the sliding rod 62 is also located inside the fixed barrel 2 but below the movable plate 4, and the sliding rod 62 and the support rod 61 are both cylindrical structures, and the cylindrical surfaces of the sliding rod 62 and the support rod 61 are both slidably connected to the bottom of the fixed barrel 2. The limiting flat head 621 can prevent the sliding rod 62 from slipping out of the fixed barrel 2. An elastic member 63 is also provided on the outer surface of the sliding rod 62, and the elastic member 63 is located between the bottom of the fixed barrel 2 and the base 64. Specifically, the elastic member 63 is a spring structure, one end of the spring abuts against the bottom of the fixed barrel 2, and the other end abuts against the upper surface of the base 64. The spring is sleeved on the outside of the sliding rod 62; and the base 64 is placed on the roadbed surface.

[0026] When the roadbed sinks or rises, the rebound mechanism 6 will be activated, thereby driving the movable plate 4 to slide inside the fixed barrel 2. Specifically, when the roadbed surface sinks, the base 64 moves downward along with the roadbed surface under the action of its own gravity and the elastic restoring force of the elastic member 63, so that the support rod 61 drives the movable plate 4 to move downward. When the roadbed surface rises, the base 64 is lifted up, the elastic member 63 is compressed, and the support rod 61 drives the movable plate 4 to move upward.

[0027] Colored liquid is also arranged in the transparent tube 3. Since the transparent tube 3 is also connected to the connection hole 21 at the top of the fixed barrel 2, the colored liquid will fill the upper part of the fixed barrel 21. Therefore, when the movable plate 4 inside the fixed barrel 21 moves upward or downward, the volume inside the fixed barrel 2 and on the upper side of the movable plate 4 will become smaller or larger, thereby squeezing out or sucking the colored liquid in the transparent tube 3. It should be noted that the cylindrical cross-sectional area of ​​the fixed barrel 2 is much larger than the cylindrical cross-sectional area of ​​the transparent tube 3, so a slight change in the movable plate 4 can still cause a large liquid level change in the transparent tube 3. It can accurately reflect the settlement of the roadbed.

[0028] It should also be noted that the support foot 51 of the support mechanism 5 includes a fixed sleeve 511 and a rotating column 512; Figure 3 As shown, the fixing sleeve 511 is a cylindrical structure, the interior of the fixing sleeve 511 is a hollow body, and an internal thread is provided at the bottom of the inner side of the fixing sleeve 511; the rotating column 512 is also a cylindrical structure, and an external thread is provided at the top of the rotating column 512. The rotating column 512 and the fixing sleeve 511 are connected by an adjustable thread. By rotating the rotating column 512, the overall height of the fixing sleeve 511 is adjusted, thereby adjusting the height of the supporting foot 51. A rotating handle 5121 is also provided on the outer surface of the rotating column 512, and the rotating column 512 can be rotated more conveniently by rotating the handle 5121; a fixed base 513 is also provided at the bottom of the rotating column 512, and the fixed base 513 is connected to the rotating column 512 in a rotating manner. When the rotating column 512 rotates, the fixed base 513 remains stationary.

[0029] It should also be noted that the movable plate 4 is a cylindrical structure like the fixed barrel 2, and a sealing ring 10 is provided on the outer edge of the movable plate 4 to seal the inner wall of the movable plate 4 and the fixed barrel 2 to prevent the colored liquid from leaking and affecting the accuracy of the roadbed detection.

[0030] It should also be noted that a level bubble 9 is provided on the upper surface of the mounting column 1. The level bubble 9 can reflect the horizontal condition of the monitoring device and can also reflect the settlement of various positions of the roadbed to a certain extent, so as to determine whether the roadbed is tilted.

[0031] The specific working process of this program is as follows.

[0032] When in use, the base 64 is pushed up and down several times, and the support rod 61 on the base 64 drives the movable plate 4 to move up and down. The movable plate 4 squeezes out or sucks the colored liquid on its upper part to ensure that the fixed barrel 2 and the transparent tube 3 below the liquid do not retain air. The device is placed at the location where detection is required, and the three support legs 51 are adjusted respectively. The rotating column 512 is rotated to make the fixed sleeve 511 move up or down, so that the total length of the support legs 51 can be adjusted, and the level bubble 9 is observed. By adjusting the three support legs 51, the mounting column 1 is made horizontal. At the same time, the base 64 squeezes the roadbed under the action of the rebound mechanism 6 , record the current position of the colored liquid inside the transparent tube 3. When the roadbed sinks, the base 64 moves downward with the roadbed under the action of the elastic member 63. The base 64 drives the movable plate 4 to move downward through the support rod 61, so that the liquid on the upper part of the movable plate 4 generates negative pressure. Under the action of atmospheric pressure, the liquid in the transparent tube 3 will flow downward to the inside of the movable plate 4. Since the transparent tube 3 is much thinner than the fixed barrel 2, even if the movable plate 4 moves slightly downward, the liquid in the transparent tube 3 will drop significantly. By observing the position of the liquid inside the transparent tube 3, the extent of the roadbed sinking can be determined, thereby achieving the effect of increasing the monitoring accuracy. While observing the settlement, the level bubble 9 is also observed to see if it is still in a horizontal state, so as to determine whether the roadbed is tilted.

[0033] Example 2: Figure 1 A roadbed settlement monitoring device shown in the figure includes a mounting column 1, a fixed barrel 2 and a supporting mechanism 5, wherein the mounting column 1 is a cylindrical structure, and the mounting column 1 is located at the top of the fixed barrel 2, wherein the mounting column 1 and the fixed barrel 2 are separated by a certain distance; and the supporting mechanism 5 simultaneously limits and fixes the mounting column 1 and the fixed barrel 2 to prevent relative displacement between the mounting column 1 and the fixed barrel 2.

[0034] Specifically, the supporting mechanism 5 includes supporting feet 51, horizontal brackets 52 and inclined brackets 53; there are three supporting feet 51, which are evenly distributed in a ring shape, and the angle between each supporting foot 51 is 120°. The fixed barrel 2 is located at the center of the three supporting feet 51. Three horizontal brackets 52 are connected between the fixed barrel 2 and the three supporting feet 51. The horizontal brackets 52 are straight rod structures, one end of the horizontal brackets 52 is fixedly connected to the top of the supporting feet 51, and the other end is fixedly connected to the outer wall of the fixed barrel 2. Then, an inclined bracket 53 is also arranged on each horizontal bracket 52. Each inclined bracket 53 is inclined toward the top center direction of the fixed barrel 2, and is fixedly connected to the bottom of the mounting column 1 above the fixed barrel 2. Through the arrangement of the horizontal brackets 52 and the inclined brackets 53, the stability and structural strength of the entire supporting mechanism 5 are greatly improved, and the installation between the fixed barrel 2 and the mounting column 1 is made more stable.

[0035] Combination Figure 2 and Figure 4 As shown, the interior of the fixed barrel 2 is a hollow structure, and a connecting hole 21 is provided on the top of the fixed barrel 2. A transparent tube 3 is spirally wound on the outer surface of the cylindrical mounting column 1, and the bottom of the transparent tube 3 is connected to the connecting hole 21 on the top of the fixed barrel 2. The top of the transparent tube 3 is an open end connected to the atmosphere. A movable plate 4 is arranged inside the fixed barrel 2, and the movable plate 4 can slide inside the fixed barrel 2, and a rebound mechanism 6 is arranged at the bottom of the movable plate 4, and the rebound mechanism 6 includes a support rod 61 and six sliding rods 62, the top of the support rod 61 is fixedly connected to the bottom of the movable plate 4, the support rod 61 is located at the center of the bottom of the movable plate 4, that is, located at the center of the bottom of the fixed barrel 2, and a base 64 is also fixedly connected to the bottom of the support rod 61, and six sliding rods 62 are evenly arranged on the base 64 and around the support rod 61, the bottom of the sliding rod 62 is fixedly connected to the base 64, and a limiting flat head 621 is arranged on the top, the top of the sliding rod 62 is also located inside the fixed barrel 2 but below the movable plate 4, and the sliding rod 62 and the support rod 61 are both cylindrical structures, and the cylindrical surfaces of the sliding rod 62 and the support rod 61 are both slidably connected to the bottom of the fixed barrel 2. The limiting flat head 621 can prevent the sliding rod 62 from slipping out of the fixed barrel 2. An elastic member 63 is also provided on the outer surface of the sliding rod 62, and the elastic member 63 is located between the bottom of the fixed barrel 2 and the base 64. Specifically, the elastic member 63 is a spring structure, one end of the spring abuts against the bottom of the fixed barrel 2, and the other end abuts against the upper surface of the base 64. The spring is sleeved on the outside of the sliding rod 62; and the base 64 is placed on the roadbed surface.

[0036] When the roadbed sinks or rises, the rebound mechanism 6 will be activated, thereby driving the movable plate 4 to slide inside the fixed barrel 2. Specifically, when the roadbed surface sinks, the base 64 moves downward along with the roadbed surface under the action of its own gravity and the elastic restoring force of the elastic member 63, so that the support rod 61 drives the movable plate 4 to move downward. When the roadbed surface rises, the base 64 is lifted up, the elastic member 63 is compressed, and the support rod 61 drives the movable plate 4 to move upward.

[0037] It should be noted that the top of the fixed barrel 2 is a conical structure, and there is also colored liquid inside the fixed barrel 2 above the movable plate 4. Therefore, the top of the fixed barrel 2 is set to a small upper and large lower conical structure to prevent bubbles from remaining inside the fixed barrel 2 and avoid affecting the liquid level changes of the transparent tube 3.

[0038] Colored liquid is also arranged in the transparent tube 3. Since the transparent tube 3 is also connected to the connection hole 21 at the top of the fixed barrel 2, the colored liquid will fill the upper part of the fixed barrel 21. Therefore, when the movable plate 4 inside the fixed barrel 21 moves upward or downward, the volume inside the fixed barrel 2 and on the upper side of the movable plate 4 will become smaller or larger, thereby squeezing out or sucking the colored liquid in the transparent tube 3. It should be noted that the cylindrical cross-sectional area of ​​the fixed barrel 2 is much larger than the cylindrical cross-sectional area of ​​the transparent tube 3, so a slight change in the movable plate 4 can still cause a large liquid level change in the transparent tube 3. It can accurately reflect the settlement of the roadbed.

[0039] It should also be noted that the support foot 51 of the support mechanism 5 includes a fixed sleeve 511 and a rotating column 512; Figure 3 As shown, the fixing sleeve 511 is a cylindrical structure, the interior of the fixing sleeve 511 is a hollow body, and an internal thread is provided at the bottom of the inner side of the fixing sleeve 511; the rotating column 512 is also a cylindrical structure, and an external thread is provided at the top of the rotating column 512. The rotating column 512 and the fixing sleeve 511 are connected by an adjustable thread. By rotating the rotating column 512, the overall height of the fixing sleeve 511 is adjusted, thereby adjusting the height of the supporting foot 51. A rotating handle 5121 is also provided on the outer surface of the rotating column 512, and the rotating column 512 can be rotated more conveniently by rotating the handle 5121; a fixed base 513 is also provided at the bottom of the rotating column 512, and the fixed base 513 is connected to the rotating column 512 in a rotating manner. When the rotating column 512 rotates, the fixed base 513 remains stationary.

[0040] It should also be noted that the movable plate 4 is a cylindrical structure like the fixed barrel 2, and a sealing ring 10 is provided on the outer edge of the movable plate 4 to seal the inner wall of the movable plate 4 and the fixed barrel 2 to prevent the colored liquid from leaking and affecting the accuracy of the roadbed detection.

[0041] It should also be noted that a level bubble 9 is provided on the upper surface of the mounting column 1. The level bubble 9 can reflect the horizontal condition of the monitoring device and can also reflect the settlement of various positions of the roadbed to a certain extent, so as to determine whether the roadbed is tilted.

[0042] It should also be noted that the outer surface of the mounting column 1 is provided with a scale 7, such as Figure 1 As shown, the scale 7 is located below the transparent tube 3. Following the transparent tube 3 spirally wound around the outer surface of the mounting column 1, the position of the colored liquid can be compared with the scale 7 to obtain the number of circles of the colored liquid rising or falling. Figure 5As shown, a protective plate 8 is arranged above the transparent tube 3, and the upper end of the protective plate 8 is fixedly connected to the mounting column 1. The upper end of the transparent tube 3 is an open end. The protective plate 8 can protect the open end of the transparent tube 3, and also can shield the open end of the transparent tube 3 to prevent debris from falling into the transparent tube 3, causing the liquid level to change or clogging the transparent tube 3.

[0043] The specific working process of this program is as follows.

[0044] When in use, the base 64 is pushed up and down several times, and the support rod 61 on the base 64 drives the movable plate 4 to move up and down. The movable plate 4 squeezes out or sucks the colored liquid on its upper part to ensure that the fixed barrel 2 and the transparent tube 3 below the liquid do not retain air. The device is placed at the location where detection is required, and the three support legs 51 are adjusted respectively. The rotating column 512 is rotated to make the fixed sleeve 511 move up or down, so that the total length of the support legs 51 can be adjusted, and the level bubble 9 is observed. By adjusting the three support legs 51, the mounting column 1 is made horizontal. At the same time, the base 64 squeezes the roadbed under the action of the rebound mechanism 6 , record the current position of the colored liquid inside the transparent tube 3. When the roadbed sinks, the base 64 moves downward with the roadbed under the action of the elastic member 63. The base 64 drives the movable plate 4 to move downward through the support rod 61, so that the liquid on the upper part of the movable plate 4 generates negative pressure. Under the action of atmospheric pressure, the liquid in the transparent tube 3 will flow downward to the inside of the movable plate 4. Since the transparent tube 3 is much thinner than the fixed barrel 2, even if the movable plate 4 moves slightly downward, the liquid in the transparent tube 3 will drop significantly. By observing the position of the liquid inside the transparent tube 3, the extent of the roadbed sinking can be determined, thereby achieving the effect of increasing the monitoring accuracy. While observing the settlement, the level bubble 9 is also observed to see if it is still in a horizontal state, so as to determine whether the roadbed is tilted.

Claims

1. A roadbed settlement monitoring device, characterized in that: It comprises a mounting column and a fixed barrel located below the mounting column, wherein a transparent tube is spirally wound on the mounting column, one end of the transparent tube is connected to the fixed barrel, and the other end of the transparent tube is open, a movable plate which can slide radially along the fixed barrel is arranged in the fixed barrel, and a colored liquid is arranged in the transparent tube.

2. A roadbed settlement monitoring device according to claim 1, characterized in that: A supporting mechanism is fixedly arranged at the bottom of the mounting column, and the supporting mechanism is also fixedly connected to the fixing barrel.

3. A roadbed settlement monitoring device according to claim 2, characterized in that: The support mechanism comprises a support foot, and the support foot comprises a fixing sleeve, and a rotating column is connected to the fixing sleeve through an internal thread.

4. A roadbed settlement monitoring device according to claim 1, characterized in that: A rebound mechanism is provided at the bottom of the fixed barrel, and the rebound mechanism comprises a support rod, one end of the support rod is fixedly connected to the movable plate, and the other end of the support rod is connected to a base.

5. A roadbed settlement monitoring device according to claim 4, characterized in that: The rebound mechanism also includes a sliding rod, which is slidably connected to the bottom of the fixed barrel, and one end of the sliding rod is also fixedly connected to the base. An elastic member is arranged outside the sliding rod and between the fixed barrel and the base.

6. A roadbed settlement monitoring device according to any one of claims 1 to 5, characterized in that: The top of the fixed barrel is a conical structure that is small at the top and large at the bottom.

7. A roadbed settlement monitoring device according to any one of claims 1 to 5, characterized in that: Scales are arranged on the outer surface of the mounting column and along the transparent tube.

8. A roadbed settlement monitoring device according to any one of claims 1 to 5, characterized in that: A protective plate is arranged on the outer surface of the mounting column and located at the open end of the transparent tube, and the open end of the transparent tube is arranged inside the protective plate.

9. A roadbed settlement monitoring device according to any one of claims 1 to 5, characterized in that: A level bubble is also provided on the mounting column.

10. A roadbed settlement monitoring device according to any one of claims 1 to 5, characterized in that: The movable plate and the inner wall of the fixed barrel are provided with a sealing structure.

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