A magnetic sedimentation monitoring device and its use method

Abstract

The present invention discloses a magnetic settlement monitoring device and a method of using the same, and relates to the technical field of foundation settlement monitoring. Specifically, the invention aims to solve the problems in the background technology of complicated installation and measurement steps when measuring ground settlement with a level instrument and a total station, and large positioning accuracy error when measuring ground settlement with a GPS positioning. The present invention arranges a connecting piece, a monitoring mechanism, a settlement monitoring point and a foldable bracket in the magnetic settlement monitoring device, and can intuitively monitor the settlement amount at the corresponding settlement monitoring point by observing the scale number of the downward movement of a rubber piston. The device has simple and convenient installation and measurement, more intuitive monitoring and high detection accuracy. The device has the advantages of simple structure, convenient installation and disassembly, and intuitive detection effect, and effectively solves the problems in the background technology.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation settlement monitoring, and in particular to a magnetic settlement monitoring device and a method for using the same. Background Art

[0002] While subways play an irreplaceable role in people's lives, their construction is also prone to cause a series of geotechnical engineering problems, especially surface subsidence. Surface subsidence caused by tunnel construction is a common phenomenon in construction. Due to the limitations of construction technology and the influence of geological conditions, tunnel construction will inevitably have an impact on the surface and its ground buildings.

[0003] In order to ensure the safe progress of tunnel construction and the normal use of ground buildings, it is necessary to monitor the surface settlement and deformation caused by tunnel construction. The current monitoring methods of surface settlement mainly include:

[0004] (1) Level measurement, GPS positioning and total station measurement. When measuring with a level or total station, it is necessary to set a benchmark point in advance, and then use the position change of the benchmark point to judge the foundation settlement during the later measurement process. However, the level or total station needs to be centered and leveled each time a measurement is made, which makes the installation and measurement steps cumbersome. In addition, each measuring point needs to be recalibrated during the actual measurement. In addition, the equipment of the level or total station is expensive. Considering the cost of measurement, it is impossible to set up a set of level or total station at each measuring station. In addition, considering the accuracy error of GPS positioning, it is difficult to accurately capture the subtle settlement of the landmark.

[0005] (2) At the same time, when measuring foundation settlement, traditional monitoring devices must rely on level instruments or total stations. Due to the limitations of construction space and surrounding environment, their actual use scenarios are greatly limited, and they cannot directly reflect the magnitude of the settlement of the rock and soil mass. Therefore, they cannot intuitively and conveniently complete the purpose of foundation settlement monitoring.

[0006] In view of the above problems, it is urgent to design a new type of magnetic settlement monitoring device and its use method to solve the problems existing in the above-mentioned prior art. Summary of the Invention

[0007] In response to the above-mentioned problems, the present invention aims to provide a magnetic settlement monitoring device and a method of using the same. The detection device, through the arrangement of connecting parts, monitoring mechanisms, settlement monitoring points and foldable brackets, can intuitively monitor the settlement amount at the corresponding settlement monitoring point by observing the scale number of the rubber piston moving downward. It has the characteristics of simple structure, easy installation and disassembly, and intuitive detection effect.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0009] A magnetic settlement monitoring device comprises a connecting piece, a monitoring mechanism, a settlement monitoring point and a foldable bracket;

[0010] The connecting piece is a detachable magnetic structure provided on the upper end of the monitoring mechanism and is used in conjunction with the foldable bracket;

[0011] The monitoring mechanism is arranged between the connecting piece and the settlement monitoring point;

[0012] The settlement monitoring point is arranged at the lower end of the monitoring mechanism;

[0013] The foldable bracket is installed on the upper side of the settlement observation point and is used in conjunction with the connecting piece.

[0014] Preferably, the connecting piece includes a square cover plate and a threaded sleeve;

[0015] The square cover is a magnetic cover arranged on the top of the threaded sleeve and is used in conjunction with the foldable bracket;

[0016] The threaded sleeve is a hollow sleeve, and an internal thread is provided on the inner wall of the threaded sleeve for use in conjunction with the monitoring mechanism.

[0017] Preferably, the foldable bracket includes a magnetic crossbar and an insertion rod;

[0018] The insertion rods are symmetrically arranged at both ends of the magnetic crossbar and connected to the magnetic crossbar via mechanical hinges;

[0019] The magnetic crossbar is a magnetic rod and is used in conjunction with the square cover.

[0020] Preferably, the monitoring mechanism includes a universal rotating assembly, a monitoring cylinder and a spring magnetic assembly;

[0021] The universal rotation assembly is arranged on the upper end of the monitoring cylinder and is detachably connected to the connecting piece;

[0022] The monitoring cylinder body includes a glass cylinder, and a top cover plate and a bottom cover plate arranged at the upper and lower ends of the glass cylinder;

[0023] The spring magnetic attraction type component is movably arranged in the glass cylinder and is used in conjunction with the settlement monitoring point.

[0024] Preferably, the universal rotation assembly includes a stud and a universal transmission member;

[0025] The stud is arranged at the top of the universal transmission member and is used in conjunction with the connecting member;

[0026] The universal transmission member is arranged at the lower end of the stud and is connected to the top cover plate.

[0027] Preferably, the glass tube is installed in the grooves of the top cover plate of the monitoring tube and the bottom cover plate of the monitoring tube; and scales for reading are evenly arranged from top to bottom on the surface of the glass tube.

[0028] Preferably, the spring magnetic attraction assembly comprises a rubber piston, a spring, a connecting rod and a magnetic disc;

[0029] The rubber piston is bonded to the top of the connecting rod and has a diameter smaller than that of the glass cylinder;

[0030] The spring is movably sleeved on the connecting rod and connected to the rubber piston;

[0031] The connecting rod is arranged longitudinally and passes through the central circular hole of the bottom cover plate;

[0032] The magnetic disc is fixedly arranged on the bottom of the connecting rod.

[0033] Preferably, the magnetic settlement monitoring point comprises a magnetic monitoring disk and a pointed slender rod;

[0034] The magnetic monitoring disk is arranged at the upper end of the slender rod and is used in conjunction with the magnetic disc;

[0035] The slender rod is arranged at the bottom center of the magnetic monitoring plate, and the lower end of the slender rod is a pointed structure.

[0036] A method for using a magnetic sedimentation monitoring device, comprising:

[0037] Step: Assembly

[0038] Install and monitor

[0039] Insert the slender rod into the surface rock and soil of the settlement observation point to fix the magnetic settlement monitoring point; adsorb the monitoring tube to the lower surface of the foldable bracket through the connecting piece, so that the spring can overcome the settlement of the magnetic settlement monitoring point caused by its own gravity. The height of the settlement monitoring device can be compensated by adjusting the degree of screwing between the threaded sleeve and the stud. When the magnetic disc is attracted to the surface of the magnetic monitoring disc, the spring is not in a compressed state. At this time, the settlement scale is zero, and the lower end tip of the magnetic monitoring disc points to the settlement monitoring point.

[0040] When sedimentation occurs, the amount of sedimentation can be obtained by observing the number of scale marks the rubber piston moves downward.

[0041] Preferably, the assembly process described in step includes

[0042] First, the foldable bracket is opened by mechanical hinges, and the tip of the rod end of the foldable bracket is inserted into the rock and soil around the monitoring settlement observation point to fix the foldable bracket;

[0043] Then, screw the connector onto the stud through the threaded sleeve. The universal rotating assembly will keep the monitoring mechanism in a vertical state. Glue the top of the spring to the bottom of the rubber piston. Open the bottom cover, place the rubber piston and spring inside the monitoring cylinder, and install the bottom cover.

[0044] Then pass the connecting rod through the circular hole of the bottom cover plate and bond the upper end of the connecting rod to the rubber piston;

[0045] Finally, through the interaction between the magnetic disc and the magnetic monitoring disc, the magnetic settlement monitoring point is installed at the lower end of the monitoring mechanism.

[0046] The beneficial effects of the present invention are as follows: the present invention discloses a magnetic settlement monitoring device and a method of using the same. Compared with the prior art, the present invention has the following improvements:

[0047] 1. The present invention designs a magnetic suction type settlement monitoring device, which includes a connecting piece, a monitoring mechanism, a settlement monitoring point and a foldable bracket. When in use: a pointed slender rod is inserted into the surface rock and soil to fix the magnetic suction type settlement monitoring point; the monitoring tube is adsorbed on the lower surface of the foldable bracket through the connecting piece, so that the spring overcomes the settlement of the magnetic suction type settlement monitoring point caused by its own gravity, and the height of the settlement monitoring device is compensated by adjusting the degree of screwing of the threaded sleeve and the stud. When the magnetic disc is adsorbed on the surface of the magnetic monitoring disc, the spring is not in a compressed state, and the settlement scale is 0 at this time, and the lower end tip of the magnetic monitoring disc points to the settlement monitoring point; the magnetic suction type settlement monitoring device settles as the rock and soil settles, and the magnetic suction type settlement monitoring device drives the magnetic disc adsorbed with the magnetic monitoring disc to settle, thereby causing the rubber piston to squeeze downward, and then the settlement change amplitude can be judged by observing the scale change of the monitoring tube body, thereby intuitively obtaining the settlement amount;

[0048] 2. All structures of this magnetic settlement monitoring device are connected by magnetic adsorption or screw connection, which is convenient for installation and disassembly. It has the advantages of simple structure, easy installation and disassembly, and intuitive detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a structural schematic diagram of the magnetic settlement monitoring device of the present invention.

[0050] Figure 2 This is an exploded view of the magnetic settlement monitoring device of the present invention.

[0051] Figure 3 This is a schematic structural diagram of the foldable bracket of the present invention after it is unfolded.

[0052] Figure 4 This is a schematic structural diagram of the foldable bracket of the present invention after folding.

[0053] Figure 5 This is a partial enlarged view of the connection of the foldable bracket of the present invention.

[0054] Figure 6 Schematic diagram of the structure of the connecting piece of the present invention.

[0055] Figure 7 Schematic diagram of the structure of the monitoring mechanism of the present invention.

[0056] Figure 8 It is a structural schematic diagram of the universal rotation assembly of the present invention.

[0057] Figure 9 It is a structural schematic diagram of the monitoring cylinder body of the present invention.

[0058] Figure 10 It is a structural schematic diagram of the spring magnetic attraction component of the present invention.

[0059] Figure 11 It is a structural schematic diagram of the settlement monitoring point of the present invention.

[0060] Among them: 1. Connector, 2. Monitoring mechanism, 3. Settlement monitoring point, 4. Folding bracket, 5. Square cover, 6. Threaded sleeve, 7. Universal rotation assembly, 8. Monitoring cylinder body, 9. Spring magnetic assembly, 10. Stud, 11. Universal transmission part, 12. Top cover, 13. Glass cylinder, 14. Bottom cover, 15. Rubber piston, 16. Spring, 17. Connecting rod, 18. Magnetic disc, 19. Magnetic monitoring disc, 20. Slender rod, 21. Mechanical hinge. DETAILED DESCRIPTION

[0061] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0062] Example 1: Refer to the attached Figure 1-11 The magnetic settlement monitoring device shown in the figure comprises a connecting member 1, a monitoring mechanism 2, a settlement monitoring point 3 and a foldable bracket 4; wherein

[0063] The connecting member 1 is a detachable magnetic structure provided on the upper end of the monitoring mechanism 2 and is used in conjunction with the foldable bracket 4;

[0064] The monitoring mechanism 2 is provided between the connecting member 1 and the settlement monitoring point 3 and is used to monitor the foundation settlement;

[0065] The settlement monitoring point 3 is arranged at the lower side of the monitoring mechanism 2 and is used to locate the position of the settlement observation point so that the monitoring mechanism 2 can accurately monitor the settlement amount of the settlement observation point;

[0066] The foldable bracket 4 is fixedly installed on the upper side of the settlement observation point and is used in conjunction with the connecting piece 1. That is, when in use, the monitoring mechanism 2 and the settlement monitoring point 3 are suspended at the position of the settlement observation point by utilizing the interaction between the foldable bracket 4 and the connecting piece 1 to monitor the settlement amount of the settlement observation point.

[0067] Preferably, in order to quickly connect the connector 1 to the foldable bracket 4 during use, the connector 1 is designed to include a magnetic square cover 5 and a threaded sleeve 6; wherein,

[0068] The magnetic square cover 5 is welded to the top of the threaded sleeve 6 and is used in conjunction with the foldable bracket 4;

[0069] The threaded sleeve 6 is a hollow sleeve, and an internal thread is provided on the inner wall of the threaded sleeve 6 for use in conjunction with the monitoring mechanism 2 .

[0070] Preferably, in order to monitor the amount of settlement at the settlement observation point during use, the monitoring mechanism 2 is designed to include a universal rotation component 7, a monitoring cylinder 8 and a spring magnetic component 9;

[0071] The universal rotation assembly 7 is arranged at the upper end of the monitoring cylinder 8 and plays a connecting role, and is used to connect the monitoring cylinder 8 to the connecting member 1;

[0072] The monitoring tube body 8 includes a glass tube 13 with scale, and a monitoring tube top cover 12 and a monitoring tube bottom cover 14 provided at the upper and lower ends of the glass tube 13 with scale;

[0073] The spring magnetic component 9 is movably arranged in the glass cylinder 13 and is used in conjunction with the settlement monitoring point 3 to monitor the lifting amount of the settlement observation point.

[0074] Preferably, in order to connect the monitoring cylinder 8 with the connecting member 1, the universal rotation assembly 7 is designed to include a stud 10 and a universal transmission member 11;

[0075] The stud 10 is provided at the top of the universal transmission member 11 and is used in conjunction with the threaded sleeve 6. That is, when in use, the connecting member 1 is connected to the monitoring mechanism 2 through the screw connection between the stud 10 and the threaded sleeve 6.

[0076] The universal transmission member 11 is provided at the lower end of the stud 10 and is welded to the top of the top cover plate 12 of the monitoring tube.

[0077] Preferably, the glass tube 13 is installed in the grooves of the top cover 12 and the bottom cover 14 of the monitoring tube; and scales are evenly arranged on the surface of the glass tube 13 from top to bottom to facilitate observation of surface settlement during use.

[0078] Preferably, the lifting amount of the settlement observation point is monitored, and the spring magnetic suction component 9 is designed to include a rubber piston 15, a spring 16, a connecting rod 17 and a magnetic disc 18; wherein

[0079] The rubber piston 15 is arranged on the top of the connecting rod 17 and is bonded to the connecting rod 17;

[0080] The spring 16 is sleeved on the outside of the connecting rod 17 and bonded to the bottom of the rubber piston 15;

[0081] The connecting rod 17 is arranged longitudinally and passes through the central circular hole of the bottom cover plate 14 of the monitoring tube;

[0082] The magnetic disc 18 is disposed at the bottom of the connecting rod 17 and is welded to the connecting rod 17 .

[0083] Preferably, in order to facilitate the downward movement of the connecting rod 17 with the rubber piston 15 when sedimentation occurs, the diameter of the rubber piston 15 is designed to be slightly smaller than the diameter of the glass cylinder 13.

[0084] Preferably, in order to facilitate installation at the lower end of the monitoring mechanism 2 and positioning of the settlement observation point, the magnetic settlement monitoring point 3 is designed to include a magnetic monitoring disk 19 and a pointed slender rod 20;

[0085] The magnetic monitoring disc 19 is provided at the upper end of the pointed slender rod 20 and is used in conjunction with the magnetic disc 18. That is, when in use, the monitoring mechanism 2 is connected to the magnetic sedimentation monitoring point 3 through the mutual adsorption between the magnetic monitoring disc 19 and the magnetic disc 18.

[0086] The pointed slender rod 20 is arranged at the bottom center of the magnetic monitoring disk 19, and its lower end is a pointed structure, which is used to directly point out and locate the position of the settlement observation point when in use.

[0087] Preferably, in order to facilitate the suspension of the device on the upper side of the settlement observation point during use, the folding bracket 4 is designed to include a magnetic cross bar and an insertion rod. The insertion rods are symmetrically arranged at both ends of the magnetic cross bar and are connected to the magnetic cross bar through a mechanical hinge 21. When in use, the insertion rods are inserted into the rock and soil around the settlement monitoring point to install and fix the folding bracket. The magnetic cross bar is used in conjunction with the square cover plate 5, that is, when in use, the connector 1 is installed on the lower side of the folding bracket 4 through the magnetic attraction between the magnetic cross bar and the threaded sleeve 6.

[0088] The method for using the magnetic settlement monitoring device of this embodiment includes:

[0089] Step 1: Assembly

[0090] First, the foldable bracket 4 is opened by the mechanical hinge 21, and the tip of the end of the insertion rod of the foldable bracket 4 is inserted into the rock and soil around the desired monitoring settlement observation point to fix the foldable bracket;

[0091] Next, screw the connector 1 onto the stud 10 at the top of the universal joint 7 via the threaded sleeve 6. The universal joint 7 will keep the monitoring mechanism 2 in a vertical position. Bond the top of the spring 16 to the bottom of the rubber piston 15. Open the bottom cover 14 of the monitoring tube, place the rubber piston 15 and spring 16 inside the monitoring tube body 8, and install the bottom cover 14 of the monitoring tube. Then, pass the connecting rod 17 through the circular hole in the bottom cover 14 of the monitoring tube and bond it to the bottom of the rubber piston 15.

[0092] Step 2: Install and monitor

[0093] Finally, insert the pointed slender rod 20 into the surface rock and soil to fix the magnetic settlement monitoring point 3; adsorb the monitoring tube 2 to the lower surface of the folding bracket 4 through the connecting piece 1, and allow the spring 16 to overcome the settlement of the magnetic settlement monitoring point 3 caused by its own gravity. By adjusting the degree of screwing between the threaded sleeve 6 and the stud 10, the height of the settlement monitoring device is compensated, so that when the magnetic disc 18 is attracted to the surface of the magnetic monitoring disc 19, the spring 16 is not in a compressed state. At this time, the settlement scale is zero, and the lower end tip of the magnetic monitoring disc 19 points to the settlement monitoring point; when settlement occurs, the settlement amount can be obtained by observing the number of scales moved downward by the rubber piston 15.

[0094] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic sedimentation monitoring device, characterized in that: It includes a connecting piece (1), a monitoring mechanism (2), a settlement monitoring point (3) and a foldable bracket (4); The connecting member (1) is a detachable magnetic structure provided on the upper end of the monitoring mechanism (2) and is used in conjunction with the foldable bracket (4); The monitoring mechanism (2) is arranged between the connecting piece (1) and the settlement monitoring point (3); The settlement monitoring point (3) is arranged at the lower end of the monitoring mechanism (2); The foldable bracket (4) is installed on the upper side of the settlement observation point and is used in conjunction with the connecting piece (1); The connecting piece (1) comprises a square cover plate (5) and a threaded sleeve (6); The monitoring mechanism (2) comprises a universal rotating assembly (7), a monitoring barrel (8) and a spring magnetic attraction assembly (9); The monitoring cylinder body (8) comprises a glass cylinder (13), and a top cover plate (12) and a bottom cover plate (14) arranged at the upper and lower ends of the glass cylinder (13); The spring magnetic component (9) is movably arranged in the glass cylinder (13) and is used in conjunction with the settlement monitoring point (3); The universal rotation assembly (7) comprises a stud (10) and a universal transmission member (11); The spring magnetic attraction assembly (9) comprises a rubber piston (15), a spring (16), a connecting rod (17) and a magnetic disc (18); The rubber piston (15) is bonded to the top of the connecting rod (17) and has a diameter smaller than that of the glass cylinder (13); The spring (16) is movably mounted on the connecting rod (17) and is connected to the rubber piston (15); The connecting rod (17) is arranged longitudinally and passes through the central circular hole of the bottom cover plate (14); The magnetic disc (18) is fixedly arranged at the bottom of the connecting rod (17); The settlement monitoring point (3) comprises a magnetic monitoring disk (19) and a pointed slender rod (20); A method for using a magnetic sedimentation monitoring device, comprising: Step 1: Assembly Install and monitor Insert the slender rod (20) into the surface rock and soil of the settlement observation point to fix the magnetic settlement monitoring point (3); adsorb the monitoring tube (2) on the lower surface of the folding bracket (4) through the connecting piece (1), so that the spring (16) overcomes the settlement of the magnetic settlement monitoring point (3) caused by its own gravity, and compensates the height of the settlement monitoring device by adjusting the degree of screw connection between the threaded sleeve (6) and the stud (10), so that when the magnetic disc (18) is attracted to the surface of the magnetic monitoring disc (19), the spring (16) is not in a compressed state, the settlement scale is zero, and the lower end tip of the magnetic monitoring disc (19) points to the settlement monitoring point; When sedimentation occurs, the amount of sedimentation can be obtained by observing the number of scales that the rubber piston (15) moves downward.

2. The magnetic settlement monitoring device according to claim 1, characterized in that: The square cover (5) is a magnetic cover arranged on the top of the threaded sleeve (6) and is used in conjunction with the foldable bracket (4); The threaded sleeve (6) is a hollow sleeve, and an internal thread is provided on the inner wall of the threaded sleeve (6) for use in conjunction with the monitoring mechanism (2).

3. The magnetic settlement monitoring device according to claim 2, characterized in that: The foldable bracket (4) comprises a magnetic crossbar and an insertion rod; The insertion rods are symmetrically arranged at both ends of the magnetic crossbar and are connected to the magnetic crossbar via mechanical hinges (21); The magnetic crossbar is a magnetic rod and is used in conjunction with the square cover plate (5).

4. The magnetic settlement monitoring device according to claim 1, characterized in that: The universal rotation assembly (7) is arranged at the upper end of the monitoring barrel (8) and is detachably connected to the connecting piece (1).

5. The magnetic settlement monitoring device according to claim 4, characterized in that: The stud (10) is arranged at the top end of the universal transmission member (11) and is used in conjunction with the connecting member (1); The universal transmission member (11) is arranged at the lower end of the stud (10) and is connected to the top cover plate (12).

6. The magnetic settlement monitoring device according to claim 4, characterized in that: The glass cylinder (13) is installed in the grooves of the top cover (12) and the bottom cover (14) of the monitoring cylinder; and scales for reading are evenly arranged from top to bottom on the surface of the glass cylinder (13).

7. The magnetic settlement monitoring device according to claim 6, characterized in that: The magnetic monitoring disk (19) is arranged at the upper end of the slender rod (20) and is used in conjunction with the magnetic disc (18); The slender rod (20) is arranged at the bottom center of the magnetic monitoring plate (19), and its lower end is a pointed structure.

8. The method for using the magnetic settlement monitoring device according to claim 7, characterized in that: The assembly process described in step 1 includes First, the foldable bracket (4) is opened by means of a mechanical hinge (21), and the tip of the insertion rod end of the foldable bracket (4) is inserted into the rock and soil around the monitoring settlement observation point to fix the foldable bracket (4); Then, the connector (1) is screwed onto the stud (10) through the threaded sleeve (6), and the universal rotating assembly (7) keeps the monitoring mechanism (2) in a vertical state. The top of the spring (16) is bonded to the bottom of the rubber piston (15), the bottom cover (14) is opened, the rubber piston (15) and the spring (16) are placed inside the monitoring cylinder (8), and the bottom cover (14) is installed. Then, the connecting rod (17) is passed through the circular hole of the bottom cover plate (14), and the upper end of the connecting rod (17) is bonded to the rubber piston (15); Finally, the magnetic suction type sedimentation monitoring point (3) is installed at the lower end of the monitoring mechanism (2) through the interaction between the magnetic disc (18) and the magnetic monitoring disc (19).

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