Building underground support anchor rod detection device

Abstract

The invention relates to the technical field of detection devices, and discloses a building underground support anchor rod detection device which comprises a wall body, a plurality of anchor holes are formed in the wall body, and hollow anchor rods are inserted into the anchor holes. When an internal soil layer structure of a wall body displaces, a glass sheet is broken along a broken groove, conductive liquid in an upper cavity and a lower cavity is communicated when the glass sheet is broken, at the moment, two conductive rods are electrically communicated, and the magnitude of current flowing between the two conductive rods and displayed numerical values are displayed on a display screen; by means of the device, when the hollow anchor rod is subjected to strain deformation, a constructor can be reminded of displacement of a soil layer in a wall body in time, the displacement position of the soil layer can be determined according to the magnitude of voltage and current and the resistance value of the unit length of the conductive rod, the constructor can conveniently make emergency measures at the first time, and the danger of soil layer collapse is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of detection devices, and in particular to a detection device for underground support anchor rods of buildings. Background Art

[0002] In the construction of underground structures of buildings, especially in deep foundation pit projects such as underground garages, subway tunnels, and underground commercial spaces, it is often necessary to support the underground soil to ensure the safety and stability of the underground structure during construction. Underground support anchors are a commonly used support structure, which usually inserts materials such as steel bars or steel cables into the deep underground soil and injects slurry or other reinforcement methods to provide support to prevent the foundation pit slope or underground structure from collapsing or deforming.

[0003] The design and construction quality of support anchors are crucial to the safety of underground structures. Therefore, during the construction of underground projects, the detection and monitoring of anchors are particularly important. Anchor detection is usually used to evaluate its anchoring performance, tension force, long-term stability, etc. to ensure that it can play the expected support role in the long term.

[0004] After the existing support anchors are installed, strain sensors are installed at the installation position of the anchors to monitor in real time whether the anchors should change, so as to infer their stress conditions and status. When displacement occurs inside the soil layer, the construction workers cannot observe the displacement and depth of the soil layer in the first time, and thus cannot take corresponding measures, resulting in the risk of soil collapse. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a detection device for underground support anchor rods of buildings.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A device for detecting underground support anchor rods of a building, comprising a wall, wherein a plurality of anchor holes are provided inside the wall, a hollow anchor rod is inserted inside each of the anchor holes, an anti-slip sleeve is inserted inside each of the hollow anchor rods, a mounting tube is inserted inside each of the anti-slip sleeves, a mounting plate is fixedly installed between inner walls of the mounting tube, a plurality of partitions are fixedly installed at equal intervals on the outer surface of the mounting plate, the circumferential outer surface of the partition is abutted against the inner wall of the mounting tube, the interior of the mounting tube is divided into a plurality of liquid storage chambers by the plurality of partitions, a mounting hole is penetrated through the upper surface of the mounting plate, a glass sheet is fixedly installed between the inner walls of the mounting hole, a plurality of broken grooves are equidistantly provided on the upper and lower outer surfaces of the glass sheet, and the plurality of broken grooves are respectively arranged inside a plurality of liquid storage chambers.

[0007] As a further solution of the present invention, the liquid storage chamber is divided into an upper chamber and a lower chamber by a mounting plate and a glass sheet, and two conductive rods are symmetrically arranged inside the mounting tube. Both of the conductive rods pass through multiple partitions and are slidably installed therewith, one of the conductive rods is arranged inside the upper chamber, and the other conductive rod is arranged inside the lower chamber.

[0008] As a further solution of the present invention, a shell is fixedly installed on one end of the mounting tube, the shell is communicated with the interior of the mounting tube, a circuit board is fixedly installed on the bottom wall of the shell, one end of the two conductive rods penetrates the outer surface of the circuit board and is slidably installed thereon, a battery pack is fixedly installed on the upper surface of the circuit board, and a display screen is fixedly installed on the upper surface of the circuit board.

[0009] As a further solution of the present invention, two groups of mounting shells are fixedly installed on the upper surface of the circuit board in groups of two, and the two mounting shells in a group are symmetrically arranged on both sides of one of the conductive rods. A slide plate is slidably installed on the inner wall of the mounting shell, and a square sliding column is fixedly installed on the outer surface of the slide plate close to the conductive rod, and the other end of the square sliding column penetrates the outer surface of the mounting shell and is slidably installed thereon, and an arc conductive clip is fixedly installed on the other end of the square sliding column, and the arc conductive clip is abutted against the outer surface of the conductive rod, and a scale mark is fixedly installed on the outer surface of the circuit board close to the conductive rod, and a spring is arranged inside the mounting shell, one end of the spring is fixedly connected to the outer surface of the other side of the slide plate, and the other end of the spring is fixedly connected to the inner wall of the mounting shell.

[0010] As a further solution of the present invention, a fixing plate is fixedly mounted on the other end of the two conductive rods, the diameter of the fixing plate is larger than the diameter of the conductive rod, and the fixing plate is fixedly mounted on the bottom wall of the mounting tube.

[0011] As a further solution of the present invention, a limiting assembly is arranged between the shell and the hollow anchor rod, and the limiting assembly includes two limiting blocks symmetrically fixedly installed on the lower surface of the shell, and the end face of the hollow anchor rod is provided with limiting grooves matching the two limiting blocks, and the limiting blocks are arranged between the inner walls of the limiting grooves.

[0012] As a further solution of the present invention, a limit sleeve is provided on the outer surface of the hollow anchor rod away from the shell, and the outer surface of the limit sleeve has two symmetrical planes, and the outer surfaces of the two planes are fixedly installed with anti-retraction spring plates, and the anti-retraction spring plates are inclined.

[0013] As a further solution of the present invention, the circumferential outer surface of the limit sleeve is symmetrically provided with two openings, and the inner walls of the two openings are rotatably installed with tension blocks, the inner wall of the tension block is provided with a conical surface, and a conical block is provided at one end of the hollow anchor rod close to the tension block, and the outer surface of the conical block is provided with a conical angle, and the conical angle is matched with the conical surface.

[0014] As a further solution of the present invention, a locking nut is sleeved on the end of the hollow anchor rod away from the limiting sleeve, and the locking nut is threadedly connected to the hollow anchor rod. A pressure plate is sleeved on the outer surface of the hollow anchor rod close to the locking nut, and an anti-overflow plug is sleeved on the outer surface of the hollow anchor rod close to the pressure plate, and a plurality of overflow holes are opened inside the anti-overflow plug.

[0015] As a further solution of the present invention, a plurality of protrusions are equidistantly arranged on the circumferential outer surface of the anti-slip sleeve, and the protrusions abut against the inner wall of the hollow anchor rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When the internal soil structure of the wall is displaced, the glass sheet will break along the broken groove. When the glass sheet breaks, the conductive liquid inside the upper cavity and the lower cavity will be connected. At this time, the two conductive rods are electrically connected. The battery pack and electronic components on the circuit board can be used to calculate the current flowing between the two conductive rods at this time. The displayed value will be displayed on the display screen. Through this device, when the hollow anchor rod is strained and deformed, the construction personnel can be reminded in time that the soil layer inside the wall is displaced, and the position of the soil displacement can be determined according to the voltage, current and resistance per unit length of the conductive rod, so that the construction personnel can formulate emergency measures in the first time to avoid the risk of soil collapse.

[0017] 2. When the hollow anchor rod is strained by the displacement of the soil layer, the conductive rod will bend and deform. When the size positions of the scale marks at the other ends of the two conductive rods are slightly different, the displacement direction of the soil layer is perpendicular to the plane where the center lines of the two conductive rods are located. When the size positions of the scale marks at the other ends of the two conductive rods are significantly different, the displacement direction of the soil layer is inclined to the plane where the center lines of the two conductive rods are located. The movement direction of the soil layer can be roughly determined by this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a building underground support anchor rod detection device proposed by the present invention; Figure 2 A schematic diagram of a wall cross-sectional structure of a building underground support anchor rod detection device proposed by the present invention; Figure 3 A schematic diagram of a hollow anchor rod of a building underground support anchor rod detection device proposed by the present invention; Figure 4 A cross-sectional schematic diagram of a hollow anchor rod of a building underground support anchor rod detection device proposed by the present invention; Figure 5 A schematic diagram of an anti-slip sleeve of a building underground support anchor rod detection device proposed by the present invention; Figure 6 A schematic diagram of an installation tube of a building underground support anchor rod detection device proposed by the present invention; Figure 7 A schematic cross-sectional view of an installation tube of a building underground support anchor rod detection device proposed by the present invention; Figure 8 for Figure 3 A partial enlarged schematic diagram in the middle; Fig. 9 A schematic diagram of a housing of a building underground support anchor rod detection device proposed by the present invention; Fig.10 A schematic diagram of an arc conductive clamp of a building underground support anchor rod detection device proposed by the present invention.

[0019] In the figure: 1. wall; 2. anchor hole; 3. hollow anchor rod; 4. limit sleeve; 5. anti-overflow plug; 6. pressure plate; 7. overflow hole; 8. locking nut; 9. anti-retraction spring; 10. tension block; 11. conical block; 12. anti-slip sleeve; 13. mounting tube; 14. limit block; 15. shell; 16. conductive rod; 17. mounting plate; 18. partition; 19. glass sheet; 20. broken groove; 21. fixing plate; 22. battery pack; 23. circuit board; 24. display screen; 25. mounting shell; 26. arc conductive clip; 27. scale mark; 28. spring; 29. ​​slide plate; 30. square slide column. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Reference Figure 1-Figure 10 A device for detecting underground support anchor rods of a building comprises a wall 1, wherein a plurality of anchor holes 2 are provided inside the wall 1, wherein hollow anchor rods 3 are inserted inside the plurality of anchor holes 2, wherein anti-skid sleeves 12 are inserted inside the hollow anchor rods 3, wherein mounting tubes 13 are inserted inside the anti-skid sleeves 12, wherein mounting plates 17 are fixedly installed between the inner walls of the mounting tubes 13, wherein a plurality of partitions 18 are fixedly installed on the outer surface of the mounting plates 17 at equal intervals, wherein the circumferential outer surface of the partitions 18 abuts against the inner wall of the mounting tubes 13, wherein the interior of the mounting tubes 13 is divided into a plurality of liquid storage chambers by the plurality of partitions 18, wherein mounting holes are provided through the upper surface of the mounting plates 17, wherein a glass sheet 19 is fixedly installed between the inner walls of the mounting holes, wherein a plurality of broken grooves 20 are evenly provided on the upper and lower outer surfaces of the glass sheet 19, wherein the plurality of broken grooves 20 are fixedly installed ... The broken grooves 20 are respectively arranged inside the multiple liquid storage chambers, and the liquid storage chambers are divided into an upper chamber and a lower chamber by a mounting plate 17 and a glass sheet 19. Two conductive rods 16 are symmetrically arranged inside the mounting tube 13, and the two conductive rods 16 both penetrate multiple partitions 18 and are slidably installed therewith, one of the conductive rods 16 is arranged inside the upper chamber, and the other conductive rod 16 is arranged inside the lower chamber, a shell 15 is fixedly installed at one end of the mounting tube 13, and the shell 15 is connected to the inside of the mounting tube 13, a circuit board 23 is fixedly installed on the bottom wall of the shell 15, one end of the two conductive rods 16 both penetrate the outer surface of the circuit board 23 and are slidably installed therewith, a battery pack 22 is fixedly installed on the upper surface of the circuit board 23, and a display screen 24 is fixedly installed on the upper surface of the circuit board 23.

[0024] When the cement is completely fixed, the installation tube 13 will remain inside the hollow anchor rod 3. At this time, if the stratum inside the wall 1 moves, the hollow anchor rod 3 and the installation tube 13 will be deformed. When the hollow anchor rod 3 is deformed, the installation plate 17 and the glass sheet 19 will be deformed. Because the installation plate 17, the installation tube 13 and the partition 18 are made of PVC material, they will not break when there is a small deformation, and the glass sheet 19 is made of glass, which is brittle and has a broken groove 20, so the glass sheet 19 will break along the broken groove 20. When the glass sheet 19 breaks, the conductive liquid inside the upper cavity and the lower cavity will be connected. At this time, the two conductive rods 16 are electrically connected, and the battery on the circuit board 23 is connected. The group 22 and the electronic components can calculate the current flowing between the two conductive rods 16 at this time, and the displayed value will be displayed on the display screen 24. The construction personnel can directly read the value during daily maintenance. When there is current display, it can be determined that the internal soil layer structure of the wall 1 has been displaced, and the approximate depth of the soil layer displacement can be obtained based on the current. Through this device, when the hollow anchor rod 3 is strained and deformed, the construction personnel can be promptly reminded that the soil layer inside the wall 1 has been displaced, and the position of the soil layer displacement can be determined based on the voltage, current and the resistance per unit length of the conductive rod 16, so that the construction personnel can formulate emergency measures in the first time to avoid the risk of soil collapse.

[0025] In this embodiment, two groups of mounting shells 25 are fixedly installed on the upper surface of the circuit board 23 in groups of two, and one group of two mounting shells 25 is symmetrically arranged on both sides of one of the conductive rods 16. A slide plate 29 is slidably installed on the inner wall of the mounting shell 25, and a square slide column 30 is fixedly installed on the outer surface of the slide plate 29 close to the conductive rod 16. The other end of the square slide column 30 penetrates the outer surface of the mounting shell 25 and is slidably installed therewith. An arc conductive clip 26 is fixedly installed on the other end of the square slide column 30, and the arc conductive clip 26 is abutted against the outer surface of the conductive rod 16. A scale mark 27 is fixedly installed on the outer surface of the circuit board 23 close to the conductive rod 16. A spring 28 is arranged inside the mounting shell 25, and one end of the spring 28 is fixedly connected to the outer surface of the other side of the slide plate 29, and the other end of the spring 28 is fixedly connected to the inner wall of the mounting shell 25. The arc conductive clip 26 is abutted against the outer surface of the conductive rod 16 by the action of the spring 28, so that the conductive rod 16 is electrically connected to the electrical components on the circuit board 23.

[0026] In this embodiment, a fixing piece 21 is fixedly mounted on the other end of each of the two conductive rods 16 . The diameter of the fixing piece 21 is larger than the diameter of the conductive rod 16 . The fixing piece 21 is fixedly mounted on the bottom wall of the mounting tube 13 .

[0027] When the hollow anchor rod 3 is strained by soil displacement, the conductive rod 16 will be bent because the end of the conductive rod 16 close to the fixing plate 21 is fixed to the bottom wall of the mounting tube 13. When the conductive rod 16 is deformed, the unfixed end will shrink.

[0028] In this embodiment, a limiting assembly is arranged between the shell 15 and the hollow anchor rod 3, and the limiting assembly includes two limiting blocks 14 symmetrically fixedly installed on the lower surface of the shell 15. The end face of the hollow anchor rod 3 is provided with a limiting groove matching the two limiting blocks 14. The limiting block 14 is arranged between the inner walls of the limiting groove. When inserting the installation tube 13, it is necessary to align the limiting block 14 with the limiting groove at the end of the hollow anchor rod 3 to prevent the installation tube 13 from rotating at will before the cement slurry solidifies.

[0029] In this embodiment, a limit sleeve 4 is provided on the outer surface of the hollow anchor rod 3 away from the shell 15, and two planes are symmetrically provided on the outer surface of the limit sleeve 4. The outer surfaces of the two planes are fixedly installed with anti-retraction springs 9, and the anti-retraction springs 9 are inclined. The circumferential outer surface of the limit sleeve 4 is symmetrically provided with two openings, and the inner walls of the two openings are rotatably installed with tensioning blocks 10. The inner wall of the tensioning block 10 is provided with a conical surface, and a conical block 11 is provided at one end of the hollow anchor rod 3 close to the tensioning block 10. The outer surface of the conical block 11 is provided with a conical angle, and the conical angle is matched with the conical surface. A locking nut 8 is provided on the end of the hollow anchor rod 3 away from the limit sleeve 4, and the locking nut 8 is threadedly connected to the hollow anchor rod 3. A pressure plate 6 is provided on the outer surface of the hollow anchor rod 3 close to the locking nut 8, and an overflow prevention plug 5 is provided on the outer surface of the hollow anchor rod 3 close to the pressure plate 6. A plurality of overflow holes 7 are provided inside the overflow prevention plug 5.

[0030] The construction personnel rotate the locking nut 8 with a wrench, so that the locking nut 8 drives the overflow prevention plug 5 and the pressure plate 6 to seal the entrance of the anchor hole 2. The locking nut 8 is continuously rotated. When the pressure plate 6 abuts against the outer surface of the wall 1, the hollow anchor rod 3 moves to the outside of the wall 1. At this time, the hollow anchor rod 3 drives the conical block 11 to move outward. Through the cooperation of the conical block 11 and the tensioning block 10, the tensioning block 10 is opened to firmly restrict the hollow anchor rod 3 inside the anchor hole 2. After fixing the position of the hollow anchor rod 3, the prepared cement slurry is poured into the hollow through hole through the hollow through hole inside it. The cement slurry flows into the interior of the anchor hole 2 through the hollow through hole and the plane of the outer surface of the limit sleeve 4, and the interior of the anchor hole 2 is filled with cement slurry until the cement slurry is poured to the position of the anti-overflow plug 5. During the pouring, the air inside the anchor hole 2 is discharged through the overflow hole 7 to prevent the cement slurry from becoming hollow.

[0031] In this embodiment, a plurality of protrusions are equidistantly arranged on the circumferential outer surface of the anti-slip sleeve 12, and the protrusions are against the inner wall of the hollow anchor rod 3. After the cement slurry is poured, the construction personnel immediately insert the installation tube 13 with the anti-slip sleeve 12 on the outer surface into the hollow through hole of the hollow anchor rod 3, and the excess cement slurry can be removed through the protrusions on the surface of the anti-slip sleeve 12.

[0032] In this embodiment, the plane where the center lines of the two conductive rods 16 lie coincident with the plane where the center lines of the two limiting grooves lie, and when the hollow anchor rod 3 is installed, the limiting grooves are vertical to the horizontal ground.

[0033] In this embodiment, it should be noted that there is a certain friction between the hollow anchor rod 3 and the limit sleeve 4, which makes it convenient for the hollow anchor rod 3 to drive the limit sleeve 4 to be inserted into the interior of the anchor hole 2; when assembling the mounting tube 13, the upper cavity and the lower cavity separated therein are filled with conductive liquid: such as sodium chloride solution; the conductive rod 16 inside the mounting tube 13 can be made of corrosion-resistant stainless steel, and the conductive rod 16 and the partition 18 are interference fit to prevent liquid leakage inside the upper cavity and the lower cavity. The length and resistance of the conductive rod 16 are fixed values, which need to be measured when assembling the mounting tube 13; the voltage of the battery pack 22 is a constant value.

[0034] It should be noted that when the present invention is used, the construction personnel drill a plurality of anchor holes 2 inside the wall 1 in advance, and then insert the assembled hollow anchor rod 3 and the limit sleeve 4 into the anchor hole 2 together, and then the construction personnel sequentially sleeve the anti-overflow plug 5, the pressure plate 6 and the locking nut 8 on the end of the hollow anchor rod 3 located outside; The construction personnel rotate the locking nut 8 with a wrench, so that the locking nut 8 drives the overflow prevention plug 5 and the pressure plate 6 to seal the entrance of the anchor hole 2. The locking nut 8 is continuously rotated. When the pressure plate 6 abuts against the outer surface of the wall 1, the hollow anchor rod 3 moves to the outside of the wall 1. At this time, the hollow anchor rod 3 drives the conical block 11 to move outward. Through the cooperation of the conical block 11 and the tensioning block 10, the tensioning block 10 is opened to firmly restrict the hollow anchor rod 3 inside the anchor hole 2. After the position of the hollow anchor rod 3 is fixed, the prepared cement slurry is poured into the hollow through hole through the hollow through hole inside the hollow anchor rod 3, and the cement slurry flows into the anchor hole 2 through the hollow through hole and the plane of the outer surface of the limit sleeve 4, and the interior of the anchor hole 2 is filled with cement slurry until the cement slurry is poured to the position of the anti-overflow plug 5. During the pouring, the air inside the anchor hole 2 is exhausted through the overflow hole 7 to prevent the cement slurry from being hollow. After the cement slurry is poured, the construction personnel immediately insert the installation tube 13 with the anti-skid sleeve 12 on the outer surface into the hollow through hole of the hollow anchor rod 3. The excessive cement slurry can be removed through the protrusions on the surface of the anti-skid sleeve 12. When inserting the installation tube 13, the limit block 14 needs to be aligned with the limit groove at the end of the hollow anchor rod 3 to prevent the installation tube 13 from rotating at will before the cement slurry solidifies. When the cement is completely fixed, the installation tube 13 will remain inside the hollow anchor rod 3. At this time, if the stratum inside the wall 1 moves, the hollow anchor rod 3 and the installation tube 13 will be deformed. When the hollow anchor rod 3 is deformed, the installation plate 17 and the glass sheet 19 will be deformed. Because the installation plate 17, the installation tube 13 and the partition 18 are made of PVC material, they will not break when there is a small deformation, and the glass sheet 19 is made of glass, which is brittle and has a broken groove 20, so the glass sheet 19 will break along the broken groove 20. When the glass sheet 19 breaks, the conductive liquid inside the upper cavity and the lower cavity will be connected. At this time, the two conductive rods 16 are electrically connected, and the battery on the circuit board 23 is connected. The group 22 and the electronic components can calculate the magnitude of the current flowing between the two conductive rods 16 at this time, and the displayed value will be displayed on the display screen 24. The construction personnel can directly read the value during daily maintenance. When there is a current display, it can be determined that the internal soil layer structure of the wall 1 has been displaced, and then the approximate depth of the soil layer displacement can be obtained according to the magnitude of the current. Through this device, when the hollow anchor rod 3 is strained and deformed, the construction personnel can be reminded in time that the soil layer inside the wall 1 has been displaced, and the position of the soil layer displacement can be determined according to the magnitude of the voltage, current and the resistance value per unit length of the conductive rod 16, so that the construction personnel can formulate emergency measures in the first time to avoid the danger of soil layer collapse; When the hollow anchor rod 3 is strained and deformed by the displacement of the soil layer, the conductive rod 16 will be bent and deformed. Because the end of the conductive rod 16 close to the fixing plate 21 is fixed to the bottom wall of the mounting tube 13, when the conductive rod 16 is deformed, the unfixed end will shrink. At this time, the approximate direction of the displacement of the coating can be determined according to the size of the scale mark 27 corresponding to the other end of the conductive rod 16. When the size position difference between the other ends of the two conductive rods 16 and the scale mark 27 is small, the displacement direction of the soil layer is perpendicular to the plane where the center lines of the two conductive rods 16 are located. When the size position difference between the other ends of the two conductive rods 16 and the scale mark 27 is large, the displacement direction of the soil layer is inclined to the plane where the center lines of the two conductive rods 16 are located. The movement direction of the soil layer can be roughly determined by this device.

[0035] The control mode of the electrical components in the present invention is controlled by the controller matched therewith, and the control circuit can be realized by simple programming by technicians in the field, which belongs to the common knowledge in the field, and is only used without improvement. In addition, the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control mode and circuit connection in detail. The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for detecting underground support anchor rods of a building, comprising a wall (1), wherein a plurality of anchor holes (2) are provided inside the wall (1), wherein hollow anchor rods (3) are inserted into the interiors of the plurality of anchor holes (2), wherein: An anti-slip sleeve (12) is inserted into the interior of the hollow anchor rod (3), and an installation tube (13) is inserted into the interior of the anti-slip sleeve (12). A mounting plate (17) is fixedly installed between the inner walls of the installation tube (13), and a plurality of partitions (18) are fixedly installed at equal intervals on the outer surface of the installation plate (17). The circumferential outer surface of the partition (18) abuts against the inner wall of the installation tube (13). The interior of the installation tube (13) is divided into a plurality of liquid storage chambers by the plurality of partitions (18). A mounting hole is penetrated through the upper surface of the installation plate (17), and a glass sheet (19) is fixedly installed between the inner walls of the installation hole. A plurality of broken grooves (20) are evenly spaced on the upper and lower outer surfaces of the glass sheet (19), and the plurality of broken grooves (20) are respectively arranged inside the plurality of liquid storage chambers.

2. A building underground support anchor detection device according to claim 1, characterized in that: The liquid storage chamber is divided into an upper chamber and a lower chamber by a mounting plate (17) and a glass sheet (19); two conductive rods (16) are symmetrically arranged inside the mounting tube (13); both conductive rods (16) penetrate a plurality of partitions (18) and are slidably mounted thereon; one conductive rod (16) is arranged inside the upper chamber, and the other conductive rod (16) is arranged inside the lower chamber.

3. A building underground support anchor detection device according to claim 2, characterized in that: A housing (15) is fixedly mounted on one end of the mounting tube (13), the housing (15) being in communication with the interior of the mounting tube (13), a circuit board (23) being fixedly mounted on the bottom wall of the housing (15), one end of each of the two conductive rods (16) passing through the outer surface of the circuit board (23) and being slidably mounted thereon, a battery pack (22) being fixedly mounted on the upper surface of the circuit board (23), and a display screen (24) being fixedly mounted on the upper surface of the circuit board (23).

4. A building underground support anchor detection device according to claims 1-3, characterized in that: Two groups of mounting shells (25) are fixedly mounted on the upper surface of the circuit board (23) in groups of two, and the two mounting shells (25) in a group are symmetrically arranged on the two sides of one of the conductive rods (16). A slide plate (29) is slidably mounted on the inner wall of the mounting shell (25), and a square slide column (30) is fixedly mounted on the outer surface of the slide plate (29) on the side close to the conductive rod (16). The other end of the square slide column (30) penetrates the outer surface of the mounting shell (25) and is slidably mounted thereon. A circular arc conductive clip (26) is fixedly mounted on the other end of the square slide column (30), and the circular arc conductive clip (26) abuts against the outer surface of the conductive rod (16). A scale mark (27) is fixedly mounted on the outer surface of the circuit board (23) close to the conductive rod (16). A spring (28) is arranged inside the mounting shell (25), and one end of the spring (28) is fixedly connected to the outer surface of the other side of the slide plate (29), and the other end of the spring (28) is fixedly connected to the inner wall of the mounting shell (25).

5. A building underground support anchor detection device according to claim 2, characterized in that: A fixing plate (21) is fixedly mounted on the other end of each of the two conductive rods (16); the diameter of the fixing plate (21) is greater than the diameter of the conductive rod (16); and the fixing plate (21) is fixedly mounted on the bottom wall of the mounting tube (13).

6. A building underground support anchor detection device according to claim 3, characterized in that: A limit assembly is provided between the shell (15) and the hollow anchor rod (3), the limit assembly comprising two limit blocks (14) symmetrically fixedly mounted on the lower surface of the shell (15), the end surface of the hollow anchor rod (3) being provided with limit grooves matching the two limit blocks (14), the limit blocks (14) being arranged between the inner walls of the limit grooves.

7. A building underground support anchor detection device according to claim 3, characterized in that: The outer surface of the hollow anchor rod (3) at one end away from the housing (15) is sleeved with a limit sleeve (4), the outer surface of the limit sleeve (4) is symmetrically provided with two planes, the outer surfaces of the two planes are both fixedly mounted with a stop spring (9), and the stop spring (9) is arranged obliquely.

8. A building underground support anchor detection device according to claim 7, characterized in that: The outer circumferential surface of the limiting sleeve (4) is symmetrically provided with two openings, and the inner walls of the two openings are rotatably mounted with tension blocks (10), the inner wall of the tension block (10) is provided with a conical surface, and the end of the hollow anchor rod (3) close to the tension block (10) is provided with a conical block (11), and the outer surface of the conical block (11) is provided with a conical angle, and the conical angle is matched with the conical surface.

9. A building underground support anchor detection device according to claim 3, characterized in that: A locking nut (8) is sleeved on one end of the hollow anchor rod (3) away from the limiting sleeve (4), and the locking nut (8) is threadedly connected to the hollow anchor rod (3). A pressure plate (6) is sleeved on the outer surface of the hollow anchor rod (3) close to the locking nut (8). An anti-overflow plug (5) is sleeved on the outer surface of the hollow anchor rod (3) close to the pressure plate (6), and a plurality of overflow holes (7) are provided inside the anti-overflow plug (5).

10. A building underground support anchor detection device according to claim 1, characterized in that: A plurality of protrusions are equidistantly arranged on the circumferential outer surface of the anti-slip sleeve (12), and the protrusions abut against the inner wall of the hollow anchor rod (3).

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